== sanity test 398b: DIO and buffer IO race ============== 18:53:45 (1784760825) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.82053 s, 8.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145112: Wed Jul 22 18:56:25 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(5992KiB/141700msec) clat (usec): min=30, max=828351, avg=44887.83, stdev=43177.49 lat (usec): min=30, max=828352, avg=44891.20, stdev=43175.46 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 469], 20.00th=[ 20317], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 36439], 60.00th=[ 44303], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 84411], 95.00th=[102237], | 99.00th=[181404], 99.50th=[244319], 99.90th=[526386], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 104, per=25.11%, avg=42.43, stdev=19.89, samples=273 iops : min= 1, max= 26, avg= 9.98, stdev= 5.01, samples=273 write: IOPS=11, BW=44.4KiB/s (45.5kB/s)(6296KiB/141700msec); 0 zone resets clat (usec): min=1178, max=681014, avg=47049.63, stdev=52794.43 lat (usec): min=1179, max=681015, avg=47053.21, stdev=52793.18 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1418], 10.00th=[ 2311], 20.00th=[ 5342], | 30.00th=[ 10421], 40.00th=[ 22152], 50.00th=[ 32375], 60.00th=[ 44827], | 70.00th=[ 58983], 80.00th=[ 78119], 90.00th=[110625], 95.00th=[139461], | 99.00th=[244319], 99.50th=[295699], 99.90th=[438305], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 7, max= 159, per=25.18%, avg=44.31, stdev=23.45, samples=276 iops : min= 1, max= 39, avg=10.45, stdev= 5.91, samples=276 lat (usec) : 50=0.75%, 100=3.58%, 250=0.42%, 500=0.13%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.56%, 4=3.65%, 10=7.26%, 20=8.46%, 50=36.23% lat (msec) : 100=25.55%, 250=8.66%, 500=0.55%, 750=0.07%, 1000=0.03% cpu : usr=0.07%, sys=5.23%, ctx=6660, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145113: Wed Jul 22 18:56:25 2026 read: IOPS=10, BW=41.8KiB/s (42.8kB/s)(5940KiB/142068msec) clat (usec): min=27, max=617685, avg=47635.16, stdev=40996.17 lat (usec): min=28, max=617686, avg=47636.56, stdev=40996.09 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 12518], 20.00th=[ 21103], | 30.00th=[ 27395], 40.00th=[ 33162], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[175113], 99.50th=[254804], 99.90th=[413139], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 4, max= 119, per=24.58%, avg=41.54, stdev=19.43, samples=277 iops : min= 1, max= 29, avg= 9.75, stdev= 4.88, samples=277 write: IOPS=11, BW=44.7KiB/s (45.8kB/s)(6348KiB/142068msec); 0 zone resets clat (usec): min=1079, max=800683, avg=44715.09, stdev=51501.91 lat (usec): min=1081, max=800684, avg=44717.60, stdev=51501.86 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1401], 10.00th=[ 2147], 20.00th=[ 5342], | 30.00th=[ 10028], 40.00th=[ 20579], 50.00th=[ 31065], 60.00th=[ 42206], | 70.00th=[ 56361], 80.00th=[ 73925], 90.00th=[102237], 95.00th=[137364], | 99.00th=[225444], 99.50th=[244319], 99.90th=[455082], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 4, max= 119, per=25.34%, avg=44.59, stdev=21.79, samples=275 iops : min= 1, max= 29, avg=10.53, stdev= 5.47, samples=275 lat (usec) : 50=0.72%, 100=2.90%, 250=0.39%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.79%, 4=3.61%, 10=7.52%, 20=8.98%, 50=35.87% lat (msec) : 100=26.17%, 250=8.40%, 500=0.42%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.33%, ctx=6742, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145114: Wed Jul 22 18:56:25 2026 read: IOPS=10, BW=42.8KiB/s (43.9kB/s)(6028KiB/140676msec) clat (usec): min=27, max=815485, avg=45278.89, stdev=41939.23 lat (usec): min=27, max=815486, avg=45281.08, stdev=41939.20 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 59], 10.00th=[ 824], 20.00th=[ 20579], | 30.00th=[ 25560], 40.00th=[ 31065], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 53216], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[166724], 99.50th=[246416], 99.90th=[459277], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 156, per=25.34%, avg=42.82, stdev=22.45, samples=273 iops : min= 1, max= 39, avg=10.07, stdev= 5.65, samples=273 write: IOPS=11, BW=44.5KiB/s (45.6kB/s)(6260KiB/140676msec); 0 zone resets clat (usec): min=1050, max=503881, avg=46058.25, stdev=48784.82 lat (usec): min=1052, max=503883, avg=46061.36, stdev=48783.86 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1401], 10.00th=[ 2180], 20.00th=[ 5211], | 30.00th=[ 10421], 40.00th=[ 22414], 50.00th=[ 33162], 60.00th=[ 45351], | 70.00th=[ 58983], 80.00th=[ 78119], 90.00th=[106431], 95.00th=[137364], | 99.00th=[214959], 99.50th=[267387], 99.90th=[312476], 99.95th=[505414], | 99.99th=[505414] bw ( KiB/s): min= 7, max= 148, per=25.13%, avg=44.23, stdev=21.23, samples=274 iops : min= 1, max= 37, avg=10.43, stdev= 5.35, samples=274 lat (usec) : 50=0.91%, 100=3.26%, 250=0.52%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=4.69%, 4=3.55%, 10=7.13%, 20=8.92%, 50=35.84% lat (msec) : 100=26.11%, 250=8.27%, 500=0.52%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=5.23%, ctx=6647, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145115: Wed Jul 22 18:56:25 2026 read: IOPS=10, BW=42.0KiB/s (44.0kB/s)(6052KiB/140792msec) clat (usec): min=32, max=499254, avg=44683.23, stdev=35801.96 lat (usec): min=32, max=499255, avg=44685.20, stdev=35801.64 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 58], 10.00th=[ 1156], 20.00th=[ 20841], | 30.00th=[ 26608], 40.00th=[ 32113], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 53216], 80.00th=[ 65274], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[164627], 99.50th=[187696], 99.90th=[299893], 99.95th=[501220], | 99.99th=[501220] bw ( KiB/s): min= 7, max= 108, per=25.84%, avg=43.67, stdev=20.49, samples=270 iops : min= 1, max= 27, avg=10.29, stdev= 5.17, samples=270 write: IOPS=11, BW=44.3KiB/s (45.4kB/s)(6236KiB/140792msec); 0 zone resets clat (usec): min=1043, max=876084, avg=46668.19, stdev=56249.53 lat (usec): min=1044, max=876087, avg=46672.52, stdev=56251.55 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1385], 10.00th=[ 2180], 20.00th=[ 5538], | 30.00th=[ 10683], 40.00th=[ 21627], 50.00th=[ 33424], 60.00th=[ 43779], | 70.00th=[ 56886], 80.00th=[ 74974], 90.00th=[108528], 95.00th=[139461], | 99.00th=[248513], 99.50th=[308282], 99.90th=[683672], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 144, per=25.29%, avg=44.51, stdev=20.93, samples=273 iops : min= 1, max= 36, avg=10.50, stdev= 5.28, samples=273 lat (usec) : 50=0.72%, 100=3.74%, 250=0.33%, 500=0.07%, 1000=0.03% lat (msec) : 2=4.69%, 4=3.45%, 10=7.39%, 20=8.59%, 50=36.46% lat (msec) : 100=25.65%, 250=8.27%, 500=0.55%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=5.30%, ctx=6678, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=169KiB/s (173kB/s), 41.8KiB/s-42.0KiB/s (42.8kB/s-44.0kB/s), io=23.4MiB (24.6MB), run=140676-142068msec WRITE: bw=177KiB/s (181kB/s), 44.3KiB/s-44.7KiB/s (45.4kB/s-45.8kB/s), io=24.6MiB (25.7MB), run=140676-142068msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145108: Wed Jul 22 18:58:48 2026 read: IOPS=5, BW=21.0KiB/s (21.5kB/s)(5992KiB/285278msec) clat (msec): min=5, max=840, avg=37.44, stdev=50.93 lat (msec): min=5, max=840, avg=37.45, stdev=50.93 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 80], 95.00th=[ 113], | 99.00th=[ 264], 99.50th=[ 296], 99.90th=[ 751], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 103, per=29.35%, avg=24.65, stdev=16.96, samples=470 iops : min= 1, max= 25, avg= 5.54, stdev= 4.30, samples=470 write: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6296KiB/285278msec); 0 zone resets clat (msec): min=37, max=847, avg=145.34, stdev=81.21 lat (msec): min=37, max=847, avg=145.34, stdev=81.21 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 99], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 138], | 70.00th=[ 159], 80.00th=[ 194], 90.00th=[ 247], 95.00th=[ 313], | 99.00th=[ 422], 99.50th=[ 506], 99.90th=[ 693], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 48, per=24.79%, avg=21.81, stdev=10.81, samples=555 iops : min= 1, max= 12, avg= 4.83, stdev= 2.78, samples=555 lat (msec) : 10=3.26%, 20=17.94%, 50=18.78%, 100=22.14%, 250=32.55% lat (msec) : 500=5.01%, 750=0.23%, 1000=0.10% cpu : usr=0.04%, sys=1.26%, ctx=5396, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145109: Wed Jul 22 18:58:48 2026 read: IOPS=5, BW=20.8KiB/s (21.3kB/s)(5940KiB/285600msec) clat (msec): min=5, max=737, avg=36.34, stdev=43.98 lat (msec): min=5, max=737, avg=36.34, stdev=43.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 78], 95.00th=[ 112], | 99.00th=[ 222], 99.50th=[ 284], 99.90th=[ 418], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 95, per=28.46%, avg=23.91, stdev=16.07, samples=479 iops : min= 1, max= 23, avg= 5.36, stdev= 4.07, samples=479 write: IOPS=5, BW=22.2KiB/s (22.8kB/s)(6348KiB/285600msec); 0 zone resets clat (msec): min=35, max=841, avg=145.71, stdev=80.54 lat (msec): min=35, max=841, avg=145.71, stdev=80.54 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 99], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 163], 80.00th=[ 194], 90.00th=[ 241], 95.00th=[ 300], | 99.00th=[ 435], 99.50th=[ 510], 99.90th=[ 776], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 54, per=24.96%, avg=21.97, stdev=10.74, samples=555 iops : min= 1, max= 13, avg= 4.86, stdev= 2.75, samples=555 lat (msec) : 10=3.03%, 20=18.46%, 50=18.29%, 100=21.94%, 250=33.43% lat (msec) : 500=4.56%, 750=0.23%, 1000=0.07% cpu : usr=0.04%, sys=1.33%, ctx=5269, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145110: Wed Jul 22 18:58:48 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6028KiB/284531msec) clat (msec): min=6, max=436, avg=37.09, stdev=41.31 lat (msec): min=6, max=436, avg=37.09, stdev=41.31 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 50], 90.00th=[ 83], 95.00th=[ 114], | 99.00th=[ 215], 99.50th=[ 279], 99.90th=[ 397], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 118, per=27.99%, avg=23.51, stdev=16.88, samples=495 iops : min= 1, max= 29, avg= 5.26, stdev= 4.30, samples=495 write: IOPS=5, BW=22.0KiB/s (22.5kB/s)(6260KiB/284531msec); 0 zone resets clat (msec): min=41, max=785, avg=145.83, stdev=84.11 lat (msec): min=41, max=785, avg=145.83, stdev=84.11 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 86], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 190], 90.00th=[ 243], 95.00th=[ 305], | 99.00th=[ 498], 99.50th=[ 558], 99.90th=[ 776], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 55, per=25.18%, avg=22.16, stdev=10.95, samples=544 iops : min= 1, max= 13, avg= 4.91, stdev= 2.80, samples=544 lat (msec) : 10=2.67%, 20=17.97%, 50=19.30%, 100=22.53%, 250=32.55% lat (msec) : 500=4.49%, 750=0.42%, 1000=0.07% cpu : usr=0.04%, sys=1.30%, ctx=5338, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145111: Wed Jul 22 18:58:48 2026 read: IOPS=5, BW=21.2KiB/s (21.7kB/s)(6052KiB/285296msec) clat (msec): min=5, max=413, avg=36.92, stdev=44.09 lat (msec): min=5, max=413, avg=36.92, stdev=44.09 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 49], 90.00th=[ 81], 95.00th=[ 112], | 99.00th=[ 259], 99.50th=[ 305], 99.90th=[ 388], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 7, max= 119, per=29.88%, avg=25.10, stdev=17.28, samples=466 iops : min= 1, max= 29, avg= 5.65, stdev= 4.35, samples=466 write: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6236KiB/285296msec); 0 zone resets clat (msec): min=38, max=842, avg=146.91, stdev=82.46 lat (msec): min=38, max=842, avg=146.92, stdev=82.46 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 124], 60.00th=[ 142], | 70.00th=[ 161], 80.00th=[ 197], 90.00th=[ 247], 95.00th=[ 305], | 99.00th=[ 422], 99.50th=[ 510], 99.90th=[ 827], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 55, per=24.90%, avg=21.91, stdev=10.58, samples=547 iops : min= 1, max= 13, avg= 4.85, stdev= 2.72, samples=547 lat (msec) : 10=2.67%, 20=19.24%, 50=18.49%, 100=21.58%, 250=32.55% lat (msec) : 500=5.18%, 750=0.20%, 1000=0.10% cpu : usr=0.03%, sys=1.27%, ctx=5365, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=84.1KiB/s (86.1kB/s), 20.8KiB/s-21.2KiB/s (21.3kB/s-21.7kB/s), io=23.4MiB (24.6MB), run=284531-285600msec WRITE: bw=88.0KiB/s (90.1kB/s), 21.9KiB/s-22.2KiB/s (22.4kB/s-22.8kB/s), io=24.6MiB (25.7MB), run=284531-285600msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145175: Wed Jul 22 18:59:27 2026 read: IOPS=14, BW=225KiB/s (231kB/s)(5920KiB/26283msec) clat (usec): min=36, max=122210, avg=35720.58, stdev=26592.12 lat (usec): min=36, max=122211, avg=35722.54, stdev=26591.76 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 60], 10.00th=[ 70], 20.00th=[ 2180], | 30.00th=[ 21365], 40.00th=[ 28443], 50.00th=[ 34866], 60.00th=[ 40633], | 70.00th=[ 46400], 80.00th=[ 56361], 90.00th=[ 68682], 95.00th=[ 86508], | 99.00th=[106431], 99.50th=[117965], 99.90th=[122160], 99.95th=[122160], | 99.99th=[122160] bw ( KiB/s): min= 94, max= 415, per=25.80%, avg=222.37, stdev=83.69, samples=51 iops : min= 5, max= 25, avg=13.18, stdev= 5.24, samples=51 write: IOPS=15, BW=242KiB/s (248kB/s)(6368KiB/26283msec); 0 zone resets clat (usec): min=1487, max=405947, avg=32191.40, stdev=37674.18 lat (usec): min=1489, max=405948, avg=32193.71, stdev=37674.09 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2024], 10.00th=[ 3195], 20.00th=[ 4883], | 30.00th=[ 7504], 40.00th=[ 11731], 50.00th=[ 18744], 60.00th=[ 28705], | 70.00th=[ 38536], 80.00th=[ 53740], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[147850], 99.50th=[187696], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 32, max= 562, per=26.66%, avg=241.84, stdev=107.79, samples=51 iops : min= 2, max= 35, avg=14.39, stdev= 6.79, samples=51 lat (usec) : 50=1.56%, 100=6.12%, 250=1.17%, 500=0.39%, 750=0.13% lat (msec) : 2=2.60%, 4=5.34%, 10=11.98%, 20=11.07%, 50=34.24% lat (msec) : 100=22.14%, 250=3.12%, 500=0.13% cpu : usr=0.06%, sys=7.65%, ctx=1526, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145177: Wed Jul 22 18:59:27 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(5744KiB/27755msec) clat (usec): min=37, max=289015, avg=36705.41, stdev=30736.53 lat (usec): min=38, max=289016, avg=36708.18, stdev=30735.00 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 66], 10.00th=[ 92], 20.00th=[ 2966], | 30.00th=[ 22676], 40.00th=[ 27919], 50.00th=[ 33424], 60.00th=[ 38536], | 70.00th=[ 47973], 80.00th=[ 55837], 90.00th=[ 72877], 95.00th=[ 85459], | 99.00th=[124257], 99.50th=[160433], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 23, max= 446, per=24.41%, avg=210.43, stdev=99.83, samples=53 iops : min= 1, max= 27, avg=12.43, stdev= 6.33, samples=53 write: IOPS=14, BW=236KiB/s (241kB/s)(6544KiB/27755msec); 0 zone resets clat (usec): min=1605, max=387235, avg=35345.34, stdev=43853.98 lat (usec): min=1607, max=387237, avg=35354.08, stdev=43851.14 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2147], 10.00th=[ 3097], 20.00th=[ 5538], | 30.00th=[ 8225], 40.00th=[ 13960], 50.00th=[ 22938], 60.00th=[ 30540], | 70.00th=[ 42206], 80.00th=[ 59507], 90.00th=[ 79168], 95.00th=[109577], | 99.00th=[204473], 99.50th=[261096], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 46, max= 472, per=25.96%, avg=235.46, stdev=102.73, samples=54 iops : min= 2, max= 29, avg=14.02, stdev= 6.54, samples=54 lat (usec) : 50=0.52%, 100=4.82%, 250=2.47%, 500=0.39%, 750=0.39% lat (usec) : 1000=0.13% lat (msec) : 2=2.73%, 4=5.08%, 10=11.20%, 20=9.11%, 50=37.24% lat (msec) : 100=21.61%, 250=3.78%, 500=0.52% cpu : usr=0.09%, sys=7.34%, ctx=1563, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145178: Wed Jul 22 18:59:27 2026 read: IOPS=14, BW=228KiB/s (234kB/s)(6256KiB/27386msec) clat (usec): min=35, max=226311, avg=35031.19, stdev=30692.49 lat (usec): min=35, max=226312, avg=35032.38, stdev=30692.44 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 111], | 30.00th=[ 20317], 40.00th=[ 27132], 50.00th=[ 32375], 60.00th=[ 39584], | 70.00th=[ 46924], 80.00th=[ 55313], 90.00th=[ 72877], 95.00th=[ 83362], | 99.00th=[137364], 99.50th=[204473], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 31, max= 539, per=26.55%, avg=228.89, stdev=101.95, samples=53 iops : min= 1, max= 33, avg=13.60, stdev= 6.48, samples=53 write: IOPS=13, BW=220KiB/s (226kB/s)(6032KiB/27386msec); 0 zone resets clat (usec): min=1393, max=338952, avg=35703.29, stdev=35466.80 lat (usec): min=1395, max=338954, avg=35706.11, stdev=35466.76 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 2409], 10.00th=[ 3851], 20.00th=[ 7111], | 30.00th=[ 11469], 40.00th=[ 17433], 50.00th=[ 25035], 60.00th=[ 35914], | 70.00th=[ 45351], 80.00th=[ 58983], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[154141], 99.50th=[160433], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 62, max= 414, per=23.99%, avg=217.57, stdev=80.84, samples=53 iops : min= 3, max= 25, avg=12.89, stdev= 5.12, samples=53 lat (usec) : 50=1.43%, 100=8.59%, 250=1.69%, 500=0.65%, 750=0.26% lat (usec) : 1000=0.26% lat (msec) : 2=1.17%, 4=4.30%, 10=8.20%, 20=9.51%, 50=37.50% lat (msec) : 100=22.66%, 250=3.65%, 500=0.13% cpu : usr=0.09%, sys=7.02%, ctx=1569, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145180: Wed Jul 22 18:59:27 2026 read: IOPS=13, BW=219KiB/s (225kB/s)(6032KiB/27492msec) clat (usec): min=35, max=311185, avg=37390.76, stdev=35691.31 lat (usec): min=35, max=311186, avg=37403.55, stdev=35705.99 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 118], | 30.00th=[ 18482], 40.00th=[ 26870], 50.00th=[ 32900], 60.00th=[ 39584], | 70.00th=[ 50070], 80.00th=[ 60556], 90.00th=[ 79168], 95.00th=[ 96994], | 99.00th=[160433], 99.50th=[177210], 99.90th=[312476], 99.95th=[312476], | 99.99th=[312476] bw ( KiB/s): min= 63, max= 443, per=26.30%, avg=226.71, stdev=93.80, samples=51 iops : min= 3, max= 27, avg=13.45, stdev= 5.95, samples=51 write: IOPS=14, BW=228KiB/s (233kB/s)(6256KiB/27492msec); 0 zone resets clat (usec): min=1257, max=375668, avg=33365.97, stdev=41651.27 lat (usec): min=1258, max=375671, avg=33378.43, stdev=41662.89 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 2147], 10.00th=[ 2966], 20.00th=[ 5735], | 30.00th=[ 8455], 40.00th=[ 12125], 50.00th=[ 18744], 60.00th=[ 26870], | 70.00th=[ 39584], 80.00th=[ 55837], 90.00th=[ 78119], 95.00th=[102237], | 99.00th=[198181], 99.50th=[278922], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 23, max= 479, per=25.12%, avg=227.81, stdev=102.04, samples=53 iops : min= 1, max= 29, avg=13.53, stdev= 6.41, samples=53 lat (usec) : 50=0.52%, 100=8.72%, 250=2.21%, 500=0.39%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=2.34%, 4=5.34%, 10=11.33%, 20=10.42%, 50=32.29% lat (msec) : 100=21.09%, 250=4.56%, 500=0.39% cpu : usr=0.06%, sys=7.12%, ctx=1535, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=863KiB/s (884kB/s), 207KiB/s-228KiB/s (212kB/s-234kB/s), io=23.4MiB (24.5MB), run=26283-27755msec WRITE: bw=908KiB/s (930kB/s), 220KiB/s-242KiB/s (226kB/s-248kB/s), io=24.6MiB (25.8MB), run=26283-27755msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145173: Wed Jul 22 19:00:04 2026 read: IOPS=5, BW=93.7KiB/s (95.0kB/s)(5920KiB/63153msec) clat (msec): min=6, max=245, avg=35.29, stdev=31.92 lat (msec): min=6, max=245, avg=35.29, stdev=31.92 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 51], 90.00th=[ 78], 95.00th=[ 101], | 99.00th=[ 157], 99.50th=[ 194], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 29, max= 382, per=28.09%, avg=103.67, stdev=63.20, samples=111 iops : min= 1, max= 23, avg= 5.77, stdev= 3.97, samples=111 write: IOPS=6, BW=101KiB/s (103kB/s)(6368KiB/63153msec); 0 zone resets clat (msec): min=47, max=433, avg=125.26, stdev=63.78 lat (msec): min=47, max=433, avg=125.26, stdev=63.78 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 58], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 89], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 122], | 70.00th=[ 136], 80.00th=[ 159], 90.00th=[ 209], 95.00th=[ 268], | 99.00th=[ 359], 99.50th=[ 422], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 23, max= 192, per=26.10%, avg=101.27, stdev=47.48, samples=123 iops : min= 1, max= 12, avg= 5.62, stdev= 3.02, samples=123 lat (msec) : 10=1.95%, 20=17.19%, 50=19.92%, 100=28.65%, 250=29.04% lat (msec) : 500=3.26% cpu : usr=0.04%, sys=1.76%, ctx=1463, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145174: Wed Jul 22 19:00:04 2026 read: IOPS=5, BW=88.6KiB/s (90.8kB/s)(5744KiB/64802msec) clat (msec): min=7, max=389, avg=36.26, stdev=38.90 lat (msec): min=7, max=389, avg=36.26, stdev=38.90 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 46], 90.00th=[ 80], 95.00th=[ 109], | 99.00th=[ 199], 99.50th=[ 249], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 23, max= 416, per=27.70%, avg=102.21, stdev=72.96, samples=111 iops : min= 1, max= 26, avg= 5.68, stdev= 4.61, samples=111 write: IOPS=6, BW=101KiB/s (103kB/s)(6544KiB/64802msec); 0 zone resets clat (msec): min=35, max=438, avg=126.43, stdev=65.87 lat (msec): min=35, max=438, avg=126.44, stdev=65.87 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 107], 60.00th=[ 120], | 70.00th=[ 138], 80.00th=[ 159], 90.00th=[ 209], 95.00th=[ 271], | 99.00th=[ 372], 99.50th=[ 422], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 31, max= 192, per=26.16%, avg=101.50, stdev=44.14, samples=127 iops : min= 1, max= 12, avg= 5.63, stdev= 2.79, samples=127 lat (msec) : 10=1.43%, 20=16.80%, 50=20.96%, 100=27.47%, 250=29.82% lat (msec) : 500=3.52% cpu : usr=0.05%, sys=1.73%, ctx=1463, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145176: Wed Jul 22 19:00:04 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(6256KiB/61322msec) clat (msec): min=6, max=212, avg=34.76, stdev=30.39 lat (msec): min=6, max=212, avg=34.76, stdev=30.39 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 66], 95.00th=[ 95], | 99.00th=[ 171], 99.50th=[ 209], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 29, max= 320, per=29.95%, avg=110.50, stdev=70.68, samples=112 iops : min= 1, max= 20, avg= 6.19, stdev= 4.49, samples=112 write: IOPS=6, BW=98.4KiB/s (101kB/s)(6032KiB/61322msec); 0 zone resets clat (msec): min=47, max=458, avg=125.42, stdev=62.30 lat (msec): min=47, max=458, avg=125.42, stdev=62.30 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 81], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 109], 60.00th=[ 122], | 70.00th=[ 138], 80.00th=[ 163], 90.00th=[ 205], 95.00th=[ 253], | 99.00th=[ 347], 99.50th=[ 439], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 23, max= 192, per=25.30%, avg=98.16, stdev=44.65, samples=121 iops : min= 1, max= 12, avg= 5.42, stdev= 2.85, samples=121 lat (msec) : 10=2.21%, 20=15.76%, 50=24.61%, 100=26.30%, 250=28.52% lat (msec) : 500=2.60% cpu : usr=0.03%, sys=1.85%, ctx=1482, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145179: Wed Jul 22 19:00:04 2026 read: IOPS=6, BW=96.6KiB/s (98.9kB/s)(6032KiB/62460msec) clat (msec): min=6, max=308, avg=35.64, stdev=34.43 lat (msec): min=6, max=308, avg=35.64, stdev=34.43 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 83], 95.00th=[ 111], | 99.00th=[ 182], 99.50th=[ 199], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 350, per=29.32%, avg=108.20, stdev=66.75, samples=109 iops : min= 1, max= 21, avg= 6.06, stdev= 4.19, samples=109 write: IOPS=6, BW=100KiB/s (103kB/s)(6256KiB/62460msec); 0 zone resets clat (msec): min=46, max=644, avg=124.61, stdev=67.04 lat (msec): min=46, max=644, avg=124.61, stdev=67.04 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 72], 20.00th=[ 81], | 30.00th=[ 88], 40.00th=[ 96], 50.00th=[ 105], 60.00th=[ 115], | 70.00th=[ 131], 80.00th=[ 155], 90.00th=[ 205], 95.00th=[ 268], | 99.00th=[ 393], 99.50th=[ 426], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 23, max= 192, per=26.02%, avg=100.97, stdev=46.51, samples=122 iops : min= 1, max= 12, avg= 5.61, stdev= 2.93, samples=122 lat (msec) : 10=2.34%, 20=17.06%, 50=21.88%, 100=27.99%, 250=27.47% lat (msec) : 500=3.12%, 750=0.13% cpu : usr=0.04%, sys=1.73%, ctx=1501, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=370KiB/s (378kB/s), 88.6KiB/s-102KiB/s (90.8kB/s-104kB/s), io=23.4MiB (24.5MB), run=61322-64802msec WRITE: bw=389KiB/s (398kB/s), 98.4KiB/s-101KiB/s (101kB/s-103kB/s), io=24.6MiB (25.8MB), run=61322-64802msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145194: Wed Jul 22 19:00:22 2026 read: IOPS=1, BW=1448KiB/s (1483kB/s)(7168KiB/4950msec) clat (msec): min=131, max=759, avg=255.11, stdev=224.42 lat (msec): min=131, max=759, avg=255.11, stdev=224.42 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 207], | 70.00th=[ 207], 80.00th=[ 209], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1422, max= 4007, per=62.67%, avg=2312.60, stdev=984.83, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 write: IOPS=1, BW=1034KiB/s (1059kB/s)(5120KiB/4950msec); 0 zone resets clat (msec): min=223, max=789, avg=589.45, stdev=223.37 lat (msec): min=223, max=790, avg=593.09, stdev=223.31 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 609], 60.00th=[ 609], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1946, max= 4087, per=48.18%, avg=2488.75, stdev=1065.53, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=58.33%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=3.58%, ctx=102, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145195: Wed Jul 22 19:00:22 2026 read: IOPS=0, BW=369KiB/s (378kB/s)(2048KiB/5550msec) clat (msec): min=211, max=661, avg=436.43, stdev=317.64 lat (msec): min=211, max=661, avg=436.44, stdev=317.64 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2043, max= 2048, per=55.43%, avg=2045.50, stdev= 3.54, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1845KiB/s (1889kB/s)(10.0MiB/5550msec); 0 zone resets clat (msec): min=159, max=737, avg=439.66, stdev=207.61 lat (msec): min=159, max=737, avg=439.75, stdev=207.60 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 182], | 30.00th=[ 262], 40.00th=[ 334], 50.00th=[ 414], 60.00th=[ 418], | 70.00th=[ 617], 80.00th=[ 625], 90.00th=[ 651], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1965, max= 6144, per=58.40%, avg=3016.83, stdev=1706.36, samples=6 iops : min= 1, max= 6, avg= 2.50, stdev= 1.87, samples=6 lat (msec) : 250=25.00%, 500=33.33%, 750=41.67% cpu : usr=0.02%, sys=4.42%, ctx=82, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145197: Wed Jul 22 19:00:22 2026 read: IOPS=1, BW=1192KiB/s (1220kB/s)(6144KiB/5156msec) clat (msec): min=88, max=987, avg=372.24, stdev=328.84 lat (msec): min=88, max=987, avg=372.24, stdev=328.84 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 284], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1946, max= 3930, per=67.53%, avg=2491.75, stdev=959.98, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1192KiB/s (1220kB/s)(6144KiB/5156msec); 0 zone resets clat (msec): min=180, max=1210, avg=481.34, stdev=390.84 lat (msec): min=183, max=1211, avg=481.80, stdev=390.48 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 321], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 2003, max= 2782, per=42.95%, avg=2219.00, stdev=375.87, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=2.62%, ctx=68, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145198: Wed Jul 22 19:00:22 2026 read: IOPS=1, BW=1327KiB/s (1359kB/s)(5120KiB/3859msec) clat (msec): min=96, max=356, avg=215.28, stdev=100.15 lat (msec): min=96, max=356, avg=215.28, stdev=100.15 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 96], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 7861, max= 7861, per=100.00%, avg=7861.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1857KiB/s (1902kB/s)(7168KiB/3859msec); 0 zone resets clat (msec): min=142, max=747, avg=382.89, stdev=222.58 lat (msec): min=142, max=747, avg=382.99, stdev=222.64 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 150], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 422], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 502], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1456, max= 4096, per=43.56%, avg=2250.17, stdev=929.55, samples=6 iops : min= 1, max= 4, avg= 1.50, stdev= 1.22, samples=6 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=2.83%, ctx=48, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3690KiB/s (3779kB/s), 369KiB/s-1448KiB/s (378kB/s-1483kB/s), io=20.0MiB (20.0MB), run=3859-5550msec WRITE: bw=5166KiB/s (5290kB/s), 1034KiB/s-1857KiB/s (1059kB/s-1902kB/s), io=28.0MiB (29.4MB), run=3859-5550msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145199: Wed Jul 22 19:00:22 2026 read: IOPS=2, BW=2317KiB/s (2373kB/s)(7168KiB/3093msec) clat (usec): min=734, max=515734, avg=200945.50, stdev=176623.18 lat (usec): min=735, max=515735, avg=200946.70, stdev=176623.03 clat percentiles (usec): | 1.00th=[ 734], 5.00th=[ 734], 10.00th=[ 734], 20.00th=[ 1319], | 30.00th=[166724], 40.00th=[166724], 50.00th=[212861], 60.00th=[233833], | 70.00th=[233833], 80.00th=[274727], 90.00th=[513803], 95.00th=[513803], | 99.00th=[513803], 99.50th=[513803], 99.90th=[513803], 99.95th=[513803], | 99.99th=[513803] bw ( KiB/s): min= 1625, max= 4055, per=64.14%, avg=2440.50, stdev=1094.05, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1655KiB/s (1695kB/s)(5120KiB/3093msec); 0 zone resets clat (msec): min=231, max=486, avg=304.77, stdev=105.61 lat (msec): min=231, max=486, avg=304.83, stdev=105.62 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 2039, max= 4031, per=56.96%, avg=3035.00, stdev=1408.56, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=41.67%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=14.00%, ctx=164, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145200: Wed Jul 22 19:00:22 2026 read: IOPS=0, BW=381KiB/s (390kB/s)(2048KiB/5381msec) clat (msec): min=230, max=643, avg=437.27, stdev=291.92 lat (msec): min=230, max=643, avg=437.28, stdev=291.92 clat percentiles (msec): | 1.00th=[ 232], 5.00th=[ 232], 10.00th=[ 232], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 232], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 2027, max= 2039, per=53.43%, avg=2033.00, stdev= 8.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1903KiB/s (1949kB/s)(10.0MiB/5381msec); 0 zone resets clat (msec): min=71, max=1104, avg=432.09, stdev=342.93 lat (msec): min=71, max=1104, avg=432.17, stdev=342.92 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 101], | 30.00th=[ 165], 40.00th=[ 211], 50.00th=[ 234], 60.00th=[ 472], | 70.00th=[ 514], 80.00th=[ 617], 90.00th=[ 835], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 1973, max= 6119, per=56.90%, avg=3031.50, stdev=1708.01, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=8.33%, 750=25.00%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.04%, sys=11.63%, ctx=198, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145201: Wed Jul 22 19:00:22 2026 read: IOPS=1, BW=1334KiB/s (1366kB/s)(6144KiB/4606msec) clat (usec): min=1048, max=473626, avg=252683.97, stdev=171381.59 lat (usec): min=1050, max=473627, avg=252685.38, stdev=171381.44 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1045], 10.00th=[ 1045], 20.00th=[113771], | 30.00th=[113771], 40.00th=[250610], 50.00th=[250610], 60.00th=[320865], | 70.00th=[358613], 80.00th=[358613], 90.00th=[471860], 95.00th=[471860], | 99.00th=[471860], 99.50th=[471860], 99.90th=[471860], 99.95th=[471860], | 99.99th=[471860] bw ( KiB/s): min= 2000, max= 4087, per=88.99%, avg=3386.00, stdev=1200.34, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1334KiB/s (1366kB/s)(6144KiB/4606msec); 0 zone resets clat (msec): min=171, max=1160, avg=496.70, stdev=382.85 lat (msec): min=171, max=1160, avg=496.76, stdev=382.85 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 171], 10.00th=[ 171], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 363], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1973, max= 3011, per=42.36%, avg=2256.75, stdev=503.66, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=9.29%, ctx=194, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145202: Wed Jul 22 19:00:22 2026 read: IOPS=1, BW=1254KiB/s (1284kB/s)(5120KiB/4082msec) clat (usec): min=636, max=359483, avg=156981.00, stdev=159135.58 lat (usec): min=637, max=359485, avg=156982.27, stdev=159135.65 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[ 635], | 30.00th=[ 2073], 40.00th=[ 2073], 50.00th=[156238], 60.00th=[156238], | 70.00th=[265290], 80.00th=[265290], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7892, max= 7892, per=100.00%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1756KiB/s (1798kB/s)(7168KiB/4082msec); 0 zone resets clat (msec): min=174, max=1062, avg=450.53, stdev=314.30 lat (msec): min=174, max=1062, avg=450.60, stdev=314.29 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 259], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 284], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 667], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 2027, max= 4071, per=57.11%, avg=3043.00, stdev=1164.07, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=16.67%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.55%, ctx=132, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3806KiB/s (3897kB/s), 381KiB/s-2317KiB/s (390kB/s-2373kB/s), io=20.0MiB (20.0MB), run=3093-5381msec WRITE: bw=5328KiB/s (5456kB/s), 1334KiB/s-1903KiB/s (1366kB/s-1949kB/s), io=28.0MiB (29.4MB), run=3093-5381msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145210: Wed Jul 22 19:00:36 2026 read: IOPS=0, BW=3653KiB/s (3740kB/s)(12.0MiB/3364msec) clat (msec): min=337, max=1427, avg=1063.57, stdev=628.74 lat (msec): min=337, max=1427, avg=1063.57, stdev=628.74 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8000, max= 8159, per=100.00%, avg=8079.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.54%, ctx=49, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145211: Wed Jul 22 19:00:36 2026 read: IOPS=0, BW=1101KiB/s (1128kB/s)(4096KiB/3720msec) clat (nsec): min=1227.2M, max=1227.2M, avg=1227178216.00, stdev= 0.00 lat (nsec): min=1227.2M, max=1227.2M, avg=1227180771.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1234], 5.00th=[ 1234], 10.00th=[ 1234], 20.00th=[ 1234], | 30.00th=[ 1234], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2202KiB/s (2255kB/s)(8192KiB/3720msec); 0 zone resets clat (usec): min=1170.1k, max=1171.4k, avg=1170755.12, stdev=982.37 lat (usec): min=1170.5k, max=1171.8k, avg=1171144.22, stdev=978.65 clat percentiles (msec): | 1.00th=[ 1167], 5.00th=[ 1167], 10.00th=[ 1167], 20.00th=[ 1167], | 30.00th=[ 1167], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8110, max= 8110, per=92.08%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.03%, sys=3.17%, ctx=56, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145212: Wed Jul 22 19:00:36 2026 write: IOPS=1, BW=6693KiB/s (6853kB/s)(12.0MiB/1836msec); 0 zone resets clat (msec): min=333, max=746, avg=558.52, stdev=209.22 lat (msec): min=333, max=747, avg=559.98, stdev=209.67 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7433, max= 8175, per=88.60%, avg=7804.00, stdev=524.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.05%, sys=9.92%, ctx=53, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145213: Wed Jul 22 19:00:36 2026 write: IOPS=1, BW=5159KiB/s (5282kB/s)(12.0MiB/2382msec); 0 zone resets clat (msec): min=365, max=1110, avg=758.97, stdev=374.25 lat (msec): min=366, max=1111, avg=759.54, stdev=374.34 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 5587, max= 8000, per=77.13%, avg=6793.50, stdev=1706.25, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.62%, ctx=48, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4404KiB/s (4510kB/s), 1101KiB/s-3653KiB/s (1128kB/s-3740kB/s), io=16.0MiB (16.8MB), run=3364-3720msec WRITE: bw=8809KiB/s (9020kB/s), 2202KiB/s-6693KiB/s (2255kB/s-6853kB/s), io=32.0MiB (33.6MB), run=1836-3720msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145214: Wed Jul 22 19:00:37 2026 read: IOPS=1, BW=4330KiB/s (4434kB/s)(12.0MiB/2838msec) clat (msec): min=585, max=1153, avg=846.70, stdev=286.89 lat (msec): min=585, max=1153, avg=847.86, stdev=286.61 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7474, max= 7670, per=100.00%, avg=7572.00, stdev=138.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.17%, ctx=327, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145215: Wed Jul 22 19:00:37 2026 read: IOPS=0, BW=1305KiB/s (1336kB/s)(4096KiB/3139msec) clat (nsec): min=903718k, max=903718k, avg=903718232.00, stdev= 0.00 lat (nsec): min=903721k, max=903721k, avg=903720556.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 902], 5.00th=[ 902], 10.00th=[ 902], 20.00th=[ 902], | 30.00th=[ 902], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 902], 80.00th=[ 902], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7670, max= 7670, per=100.00%, avg=7670.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2610KiB/s (2672kB/s)(8192KiB/3139msec); 0 zone resets clat (msec): min=928, max=1271, avg=1100.04, stdev=242.22 lat (msec): min=929, max=1272, avg=1100.84, stdev=242.72 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7474, max= 7474, per=88.60%, avg=7474.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=7.30%, ctx=106, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145216: Wed Jul 22 19:00:37 2026 write: IOPS=0, BW=3164KiB/s (3240kB/s)(12.0MiB/3884msec); 0 zone resets clat (msec): min=262, max=2131, avg=1228.40, stdev=936.06 lat (msec): min=262, max=2133, avg=1229.24, stdev=936.79 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 2140], 80.00th=[ 2140], 90.00th=[ 2140], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 8175, max= 8192, per=97.01%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.08%, sys=4.20%, ctx=72, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145217: Wed Jul 22 19:00:37 2026 write: IOPS=1, BW=4310KiB/s (4414kB/s)(12.0MiB/2851msec); 0 zone resets clat (msec): min=494, max=1333, avg=887.97, stdev=422.02 lat (msec): min=494, max=1334, avg=888.54, stdev=422.12 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7670, max= 8175, per=93.91%, avg=7922.50, stdev=357.09, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=6.84%, ctx=77, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5219KiB/s (5345kB/s), 1305KiB/s-4330KiB/s (1336kB/s-4434kB/s), io=16.0MiB (16.8MB), run=2838-3139msec WRITE: bw=8437KiB/s (8639kB/s), 2610KiB/s-4310KiB/s (2672kB/s-4414kB/s), io=32.0MiB (33.6MB), run=2851-3884msec