== sanity test 398b: DIO and buffer IO race ============== 20:30:38 (1786753838) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.94029 s, 8.5 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=144620: Fri Aug 14 20:33:07 2026 read: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5992KiB/126119msec) clat (usec): min=33, max=906229, avg=42326.08, stdev=37489.52 lat (usec): min=33, max=906230, avg=42329.54, stdev=37489.26 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 11207], 20.00th=[ 19530], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 61080], 90.00th=[ 77071], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[156238], 99.90th=[379585], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 104, per=25.81%, avg=47.24, stdev=20.21, samples=247 iops : min= 1, max= 26, avg=11.15, stdev= 5.10, samples=247 write: IOPS=12, BW=49.9KiB/s (51.1kB/s)(6296KiB/126119msec); 0 zone resets clat (usec): min=1085, max=254363, avg=39542.61, stdev=39610.70 lat (usec): min=1087, max=254365, avg=39552.71, stdev=39610.85 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1385], 10.00th=[ 2089], 20.00th=[ 5014], | 30.00th=[ 9241], 40.00th=[ 19006], 50.00th=[ 28967], 60.00th=[ 39584], | 70.00th=[ 52167], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[175113], 99.50th=[206570], 99.90th=[242222], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 15, max= 143, per=26.03%, avg=49.97, stdev=21.60, samples=245 iops : min= 3, max= 35, avg=11.84, stdev= 5.43, samples=245 lat (usec) : 50=0.33%, 100=3.52%, 250=0.16%, 500=0.16%, 750=0.07% lat (msec) : 2=4.95%, 4=3.52%, 10=7.91%, 20=10.42%, 50=37.66% lat (msec) : 100=25.23%, 250=5.96%, 500=0.10%, 1000=0.03% cpu : usr=0.09%, sys=5.49%, ctx=6425, 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=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=144621: Fri Aug 14 20:33:07 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5940KiB/130827msec) clat (usec): min=40, max=943538, avg=43446.08, stdev=37858.27 lat (usec): min=40, max=943541, avg=43448.42, stdev=37858.28 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 77], 10.00th=[ 13173], 20.00th=[ 20841], | 30.00th=[ 26084], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 51643], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[ 96994], | 99.00th=[154141], 99.50th=[175113], 99.90th=[261096], 99.95th=[943719], | 99.99th=[943719] bw ( KiB/s): min= 7, max= 119, per=24.89%, avg=45.56, stdev=20.80, samples=254 iops : min= 1, max= 29, avg=10.74, stdev= 5.24, samples=254 write: IOPS=12, BW=48.5KiB/s (49.7kB/s)(6348KiB/130827msec); 0 zone resets clat (usec): min=1096, max=430338, avg=41478.00, stdev=44274.59 lat (usec): min=1096, max=430340, avg=41482.30, stdev=44273.63 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1385], 10.00th=[ 1680], 20.00th=[ 4686], | 30.00th=[ 8848], 40.00th=[ 18482], 50.00th=[ 29754], 60.00th=[ 41157], | 70.00th=[ 56361], 80.00th=[ 71828], 90.00th=[ 94897], 95.00th=[121111], | 99.00th=[212861], 99.50th=[252707], 99.90th=[316670], 99.95th=[429917], | 99.99th=[429917] bw ( KiB/s): min= 7, max= 142, per=25.20%, avg=48.38, stdev=23.50, samples=256 iops : min= 1, max= 35, avg=11.45, stdev= 5.93, samples=256 lat (usec) : 50=0.29%, 100=2.86%, 250=0.16%, 500=0.13%, 750=0.07% lat (msec) : 2=6.09%, 4=3.45%, 10=7.03%, 20=10.06%, 50=37.37% lat (msec) : 100=26.17%, 250=5.99%, 500=0.29%, 1000=0.03% cpu : usr=0.08%, sys=5.18%, ctx=6546, 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=144622: Fri Aug 14 20:33:07 2026 read: IOPS=11, BW=46.1KiB/s (47.3kB/s)(6028KiB/130623msec) clat (usec): min=30, max=264851, avg=41222.32, stdev=30349.08 lat (usec): min=30, max=264851, avg=41224.41, stdev=30348.86 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 12125], 20.00th=[ 20055], | 30.00th=[ 25035], 40.00th=[ 30016], 50.00th=[ 34866], 60.00th=[ 41157], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 77071], 95.00th=[ 95945], | 99.00th=[154141], 99.50th=[187696], 99.90th=[254804], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 103, per=25.39%, avg=46.46, stdev=21.11, samples=252 iops : min= 1, max= 25, avg=10.96, stdev= 5.32, samples=252 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6260KiB/130623msec); 0 zone resets clat (usec): min=1079, max=1086.1k, avg=43504.56, stdev=53656.42 lat (usec): min=1080, max=1086.1k, avg=43511.05, stdev=53653.95 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1401], 10.00th=[ 2114], | 20.00th=[ 4948], 30.00th=[ 11076], 40.00th=[ 21103], | 50.00th=[ 31327], 60.00th=[ 42206], 70.00th=[ 55837], | 80.00th=[ 70779], 90.00th=[ 95945], 95.00th=[ 125305], | 99.00th=[ 212861], 99.50th=[ 261096], 99.90th=[ 675283], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 114, per=24.80%, avg=47.62, stdev=20.88, samples=255 iops : min= 1, max= 28, avg=11.26, stdev= 5.26, samples=255 lat (usec) : 50=0.36%, 100=3.32%, 250=0.49%, 500=0.03%, 750=0.03% lat (msec) : 2=4.95%, 4=4.10%, 10=6.02%, 20=10.22%, 50=39.00% lat (msec) : 100=24.93%, 250=6.22%, 500=0.26%, 750=0.03%, 2000=0.03% cpu : usr=0.08%, sys=5.19%, ctx=6587, 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=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=144623: Fri Aug 14 20:33:07 2026 read: IOPS=11, BW=46.5KiB/s (47.6kB/s)(6052KiB/130218msec) clat (usec): min=34, max=230883, avg=41941.28, stdev=30953.55 lat (usec): min=34, max=230885, avg=41943.12, stdev=30952.89 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 67], 10.00th=[ 10290], 20.00th=[ 19268], | 30.00th=[ 24249], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 51643], 80.00th=[ 63701], 90.00th=[ 82314], 95.00th=[ 98042], | 99.00th=[139461], 99.50th=[173016], 99.90th=[227541], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 7, max= 119, per=25.47%, avg=46.61, stdev=20.08, samples=251 iops : min= 1, max= 29, avg=11.00, stdev= 5.06, samples=251 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(6236KiB/130218msec); 0 zone resets clat (usec): min=1069, max=967928, avg=42512.36, stdev=51066.93 lat (usec): min=1071, max=967932, avg=42514.95, stdev=51067.84 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1401], 10.00th=[ 2073], 20.00th=[ 5080], | 30.00th=[ 10552], 40.00th=[ 20317], 50.00th=[ 31065], 60.00th=[ 42730], | 70.00th=[ 54789], 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[119014], | 99.00th=[212861], 99.50th=[235930], 99.90th=[666895], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 133, per=24.78%, avg=47.57, stdev=23.18, samples=254 iops : min= 1, max= 33, avg=11.24, stdev= 5.85, samples=254 lat (usec) : 50=0.46%, 100=3.48%, 250=0.36%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.05%, 4=3.45%, 10=6.71%, 20=11.04%, 50=36.85% lat (msec) : 100=25.49%, 250=6.90%, 500=0.07%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.10%, ctx=6504, 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=184KiB/s (188kB/s), 45.4KiB/s-47.5KiB/s (46.5kB/s-48.7kB/s), io=23.4MiB (24.6MB), run=126119-130827msec WRITE: bw=192KiB/s (197kB/s), 47.9KiB/s-49.9KiB/s (49.0kB/s-51.1kB/s), io=24.6MiB (25.7MB), run=126119-130827msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144616: Fri Aug 14 20:35:29 2026 read: IOPS=5, BW=22.1KiB/s (22.6kB/s)(5992KiB/271556msec) clat (msec): min=6, max=916, avg=35.72, stdev=44.40 lat (msec): min=6, max=916, avg=35.72, stdev=44.41 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 100], | 99.00th=[ 176], 99.50th=[ 255], 99.90th=[ 456], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 103, per=28.44%, avg=24.74, stdev=16.44, samples=468 iops : min= 1, max= 25, avg= 5.55, stdev= 4.15, samples=468 write: IOPS=5, BW=23.2KiB/s (23.7kB/s)(6296KiB/271556msec); 0 zone resets clat (msec): min=30, max=690, avg=138.27, stdev=64.93 lat (msec): min=30, max=690, avg=138.27, stdev=64.93 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 123], 60.00th=[ 140], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 359], 99.50th=[ 384], 99.90th=[ 481], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 56, per=24.84%, avg=22.85, stdev=10.35, samples=531 iops : min= 1, max= 14, avg= 5.08, stdev= 2.66, samples=531 lat (msec) : 10=3.55%, 20=17.38%, 50=19.11%, 100=22.14%, 250=34.38% lat (msec) : 500=3.39%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.32%, ctx=5169, 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=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=144617: Fri Aug 14 20:35:29 2026 read: IOPS=5, BW=21.8KiB/s (22.3kB/s)(5940KiB/272894msec) clat (msec): min=5, max=1026, avg=35.77, stdev=47.02 lat (msec): min=5, max=1026, avg=35.77, stdev=47.02 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 79], 95.00th=[ 105], | 99.00th=[ 184], 99.50th=[ 279], 99.90th=[ 468], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 95, per=28.40%, avg=24.71, stdev=16.76, samples=464 iops : min= 1, max= 23, avg= 5.56, stdev= 4.23, samples=464 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6348KiB/272894msec); 0 zone resets clat (msec): min=37, max=518, avg=138.23, stdev=61.96 lat (msec): min=37, max=518, avg=138.24, stdev=61.97 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 184], 90.00th=[ 220], 95.00th=[ 255], | 99.00th=[ 338], 99.50th=[ 384], 99.90th=[ 477], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 48, per=24.91%, avg=22.92, stdev=10.34, samples=532 iops : min= 1, max= 12, avg= 5.10, stdev= 2.64, samples=532 lat (msec) : 10=3.55%, 20=17.48%, 50=19.34%, 100=21.03%, 250=35.32% lat (msec) : 500=3.22%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.35%, ctx=5320, 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=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=144618: Fri Aug 14 20:35:29 2026 read: IOPS=5, BW=22.1KiB/s (22.6kB/s)(6028KiB/272533msec) clat (msec): min=6, max=473, avg=35.84, stdev=36.61 lat (msec): min=6, max=473, avg=35.85, stdev=36.61 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 51], 90.00th=[ 82], 95.00th=[ 104], | 99.00th=[ 163], 99.50th=[ 245], 99.90th=[ 414], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 95, per=27.71%, avg=24.11, stdev=15.86, samples=483 iops : min= 1, max= 23, avg= 5.40, stdev= 4.00, samples=483 write: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6260KiB/272533msec); 0 zone resets clat (msec): min=36, max=1034, avg=139.35, stdev=66.31 lat (msec): min=36, max=1034, avg=139.35, stdev=66.31 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 159], 80.00th=[ 184], 90.00th=[ 224], 95.00th=[ 259], | 99.00th=[ 351], 99.50th=[ 384], 99.90th=[ 477], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 56, per=24.64%, avg=22.67, stdev=10.32, samples=532 iops : min= 1, max= 14, avg= 5.04, stdev= 2.64, samples=532 lat (msec) : 10=3.12%, 20=16.15%, 50=20.48%, 100=22.53%, 250=34.44% lat (msec) : 500=3.26%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5137, 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=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=144619: Fri Aug 14 20:35:29 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6052KiB/270210msec) clat (msec): min=5, max=393, avg=35.21, stdev=35.64 lat (msec): min=5, max=393, avg=35.22, stdev=35.64 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=[ 48], 90.00th=[ 78], 95.00th=[ 106], | 99.00th=[ 169], 99.50th=[ 224], 99.90th=[ 359], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 96, per=28.72%, avg=24.99, stdev=17.17, samples=468 iops : min= 1, max= 24, avg= 5.62, stdev= 4.35, samples=468 write: IOPS=5, BW=23.1KiB/s (23.6kB/s)(6236KiB/270210msec); 0 zone resets clat (msec): min=37, max=1033, avg=138.89, stdev=68.77 lat (msec): min=37, max=1033, avg=138.89, stdev=68.77 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 140], | 70.00th=[ 155], 80.00th=[ 180], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 359], 99.50th=[ 397], 99.90th=[ 676], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 55, per=24.61%, avg=22.64, stdev=10.20, samples=530 iops : min= 1, max= 13, avg= 5.03, stdev= 2.61, samples=530 lat (msec) : 10=2.93%, 20=17.77%, 50=19.73%, 100=22.01%, 250=34.34% lat (msec) : 500=3.09%, 750=0.10%, 2000=0.03% cpu : usr=0.05%, sys=1.40%, ctx=5113, 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=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=87.0KiB/s (90.1kB/s), 21.8KiB/s-22.4KiB/s (22.3kB/s-22.9kB/s), io=23.4MiB (24.6MB), run=270210-272894msec WRITE: bw=92.1KiB/s (94.3kB/s), 22.0KiB/s-23.3KiB/s (23.5kB/s-23.8kB/s), io=24.6MiB (25.7MB), run=270210-272894msec 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=144690: Fri Aug 14 20:36:10 2026 read: IOPS=13, BW=212KiB/s (217kB/s)(5920KiB/27953msec) clat (usec): min=38, max=305482, avg=37785.57, stdev=34266.04 lat (usec): min=38, max=305483, avg=37792.67, stdev=34269.80 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 100], | 30.00th=[ 20317], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 90702], | 99.00th=[156238], 99.50th=[191890], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 93, max= 349, per=26.38%, avg=212.13, stdev=80.56, samples=55 iops : min= 5, max= 21, avg=12.51, stdev= 5.04, samples=55 write: IOPS=14, BW=228KiB/s (233kB/s)(6368KiB/27953msec); 0 zone resets clat (usec): min=1347, max=243774, avg=34409.63, stdev=36191.40 lat (usec): min=1348, max=243776, avg=34425.94, stdev=36226.90 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1876], 10.00th=[ 2606], 20.00th=[ 5014], | 30.00th=[ 8848], 40.00th=[ 14746], 50.00th=[ 23987], 60.00th=[ 31327], | 70.00th=[ 42730], 80.00th=[ 58459], 90.00th=[ 80217], 95.00th=[104334], | 99.00th=[147850], 99.50th=[238027], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 63, max= 447, per=26.95%, avg=228.02, stdev=82.21, samples=55 iops : min= 3, max= 27, avg=13.53, stdev= 5.13, samples=55 lat (usec) : 50=1.04%, 100=8.59%, 250=0.91%, 500=0.26%, 750=0.26% lat (usec) : 1000=0.39% lat (msec) : 2=3.65%, 4=4.30%, 10=9.64%, 20=8.20%, 50=35.94% lat (msec) : 100=22.53%, 250=4.17%, 500=0.13% cpu : usr=0.11%, sys=6.25%, ctx=1434, 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=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=144691: Fri Aug 14 20:36:10 2026 read: IOPS=12, BW=193KiB/s (198kB/s)(5744KiB/29774msec) clat (usec): min=24, max=339526, avg=39041.20, stdev=39175.72 lat (usec): min=24, max=339527, avg=39051.51, stdev=39198.88 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 62], 20.00th=[ 75], | 30.00th=[ 17433], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 49546], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[103285], | 99.00th=[166724], 99.50th=[214959], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 27, max= 508, per=24.78%, avg=199.27, stdev=91.71, samples=56 iops : min= 1, max= 31, avg=11.71, stdev= 5.78, samples=56 write: IOPS=13, BW=220KiB/s (225kB/s)(6544KiB/29774msec); 0 zone resets clat (usec): min=1554, max=335554, avg=37983.06, stdev=45794.15 lat (usec): min=1556, max=335557, avg=37985.24, stdev=45794.10 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1942], 10.00th=[ 2409], 20.00th=[ 4883], | 30.00th=[ 7832], 40.00th=[ 12911], 50.00th=[ 22414], 60.00th=[ 33817], | 70.00th=[ 49546], 80.00th=[ 64750], 90.00th=[ 87557], 95.00th=[114820], | 99.00th=[270533], 99.50th=[287310], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 61, max= 480, per=25.95%, avg=219.55, stdev=95.53, samples=58 iops : min= 3, max= 30, avg=13.00, stdev= 6.01, samples=58 lat (usec) : 50=1.17%, 100=9.64%, 250=0.52%, 500=0.39%, 1000=0.13% lat (msec) : 2=3.78%, 4=5.60%, 10=10.03%, 20=8.20%, 50=30.86% lat (msec) : 100=23.18%, 250=5.73%, 500=0.78% cpu : usr=0.06%, sys=5.86%, ctx=1400, 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=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=144692: Fri Aug 14 20:36:10 2026 read: IOPS=13, BW=219KiB/s (224kB/s)(6256KiB/28564msec) clat (usec): min=22, max=161965, avg=38549.56, stdev=31157.76 lat (usec): min=22, max=161967, avg=38551.07, stdev=31157.51 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 135], | 30.00th=[ 24773], 40.00th=[ 30016], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 50594], 80.00th=[ 62129], 90.00th=[ 77071], 95.00th=[100140], | 99.00th=[137364], 99.50th=[152044], 99.90th=[162530], 99.95th=[162530], | 99.99th=[162530] bw ( KiB/s): min= 63, max= 414, per=27.40%, avg=220.29, stdev=81.01, samples=56 iops : min= 3, max= 25, avg=13.02, stdev= 5.09, samples=56 write: IOPS=13, BW=211KiB/s (216kB/s)(6032KiB/28564msec); 0 zone resets clat (usec): min=1576, max=289708, avg=35584.48, stdev=37569.07 lat (usec): min=1578, max=289710, avg=35586.63, stdev=37568.96 clat percentiles (usec): | 1.00th=[ 1713], 5.00th=[ 2040], 10.00th=[ 3228], 20.00th=[ 5735], | 30.00th=[ 8094], 40.00th=[ 13304], 50.00th=[ 24511], 60.00th=[ 35914], | 70.00th=[ 46924], 80.00th=[ 62129], 90.00th=[ 80217], 95.00th=[106431], | 99.00th=[133694], 99.50th=[258999], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 508, per=24.85%, avg=210.25, stdev=90.39, samples=56 iops : min= 1, max= 31, avg=12.41, stdev= 5.71, samples=56 lat (usec) : 50=1.04%, 100=8.85%, 250=0.78%, 500=0.13%, 1000=0.13% lat (msec) : 2=2.73%, 4=4.82%, 10=10.03%, 20=7.16%, 50=35.29% lat (msec) : 100=23.57%, 250=5.21%, 500=0.26% cpu : usr=0.08%, sys=5.99%, ctx=1453, 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=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=144693: Fri Aug 14 20:36:10 2026 read: IOPS=13, BW=210KiB/s (215kB/s)(6032KiB/28692msec) clat (usec): min=34, max=192800, avg=37081.25, stdev=33728.20 lat (usec): min=34, max=192801, avg=37087.75, stdev=33735.91 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 72], | 30.00th=[ 6849], 40.00th=[ 27132], 50.00th=[ 34341], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 64226], 90.00th=[ 77071], 95.00th=[ 96994], | 99.00th=[143655], 99.50th=[158335], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 31, max= 446, per=27.00%, avg=217.06, stdev=96.00, samples=54 iops : min= 1, max= 27, avg=12.83, stdev= 6.05, samples=54 write: IOPS=13, BW=218KiB/s (223kB/s)(6256KiB/28692msec); 0 zone resets clat (usec): min=1380, max=282724, avg=36769.74, stdev=41216.22 lat (usec): min=1382, max=282725, avg=36772.53, stdev=41216.66 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1893], 10.00th=[ 2474], 20.00th=[ 5800], | 30.00th=[ 9110], 40.00th=[ 14746], 50.00th=[ 24249], 60.00th=[ 33424], | 70.00th=[ 46400], 80.00th=[ 61604], 90.00th=[ 84411], 95.00th=[113771], | 99.00th=[204473], 99.50th=[242222], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 27, max= 381, per=25.80%, avg=218.23, stdev=91.29, samples=56 iops : min= 1, max= 23, avg=12.89, stdev= 5.75, samples=56 lat (usec) : 50=2.08%, 100=10.94%, 250=0.91%, 500=0.13%, 750=0.26% lat (msec) : 2=3.65%, 4=4.17%, 10=9.11%, 20=9.11%, 50=29.69% lat (msec) : 100=24.74%, 250=5.08%, 500=0.13% cpu : usr=0.11%, sys=6.33%, ctx=1453, 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=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=804KiB/s (824kB/s), 193KiB/s-219KiB/s (198kB/s-224kB/s), io=23.4MiB (24.5MB), run=27953-29774msec WRITE: bw=846KiB/s (867kB/s), 211KiB/s-228KiB/s (216kB/s-233kB/s), io=24.6MiB (25.8MB), run=27953-29774msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144685: Fri Aug 14 20:37:00 2026 read: IOPS=4, BW=76.1KiB/s (77.9kB/s)(5920KiB/77839msec) clat (msec): min=8, max=348, avg=44.47, stdev=39.27 lat (msec): min=8, max=348, avg=44.47, stdev=39.27 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 25], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 47], 80.00th=[ 58], 90.00th=[ 83], 95.00th=[ 123], | 99.00th=[ 205], 99.50th=[ 257], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 30, max= 347, per=27.42%, avg=82.80, stdev=58.11, samples=140 iops : min= 1, max= 21, avg= 4.40, stdev= 3.71, samples=140 write: IOPS=5, BW=81.8KiB/s (83.8kB/s)(6368KiB/77839msec); 0 zone resets clat (msec): min=44, max=398, avg=153.93, stdev=64.89 lat (msec): min=44, max=398, avg=153.93, stdev=64.89 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 73], 10.00th=[ 84], 20.00th=[ 99], | 30.00th=[ 114], 40.00th=[ 127], 50.00th=[ 138], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 211], 90.00th=[ 247], 95.00th=[ 279], | 99.00th=[ 380], 99.50th=[ 384], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 28, max= 191, per=25.75%, avg=81.87, stdev=34.04, samples=152 iops : min= 1, max= 11, avg= 4.34, stdev= 2.21, samples=152 lat (msec) : 10=0.65%, 20=9.11%, 50=25.00%, 100=20.96%, 250=39.45% lat (msec) : 500=4.82% cpu : usr=0.04%, sys=1.42%, ctx=1332, 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=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=144686: Fri Aug 14 20:37:00 2026 read: IOPS=4, BW=72.6KiB/s (74.4kB/s)(5744KiB/79105msec) clat (msec): min=8, max=353, avg=45.84, stdev=39.16 lat (msec): min=8, max=353, avg=45.84, stdev=39.16 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 61], 90.00th=[ 94], 95.00th=[ 122], | 99.00th=[ 224], 99.50th=[ 228], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 29, max= 284, per=27.90%, avg=84.26, stdev=53.35, samples=133 iops : min= 1, max= 17, avg= 4.52, stdev= 3.44, samples=133 write: IOPS=5, BW=82.7KiB/s (84.7kB/s)(6544KiB/79105msec); 0 zone resets clat (msec): min=45, max=662, avg=153.03, stdev=69.99 lat (msec): min=45, max=662, avg=153.04, stdev=69.99 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 74], 10.00th=[ 85], 20.00th=[ 97], | 30.00th=[ 108], 40.00th=[ 121], 50.00th=[ 138], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 203], 90.00th=[ 243], 95.00th=[ 284], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 30, max= 160, per=26.94%, avg=85.66, stdev=34.18, samples=150 iops : min= 1, max= 10, avg= 4.58, stdev= 2.19, samples=150 lat (msec) : 10=0.26%, 20=7.55%, 50=26.69%, 100=19.92%, 250=40.76% lat (msec) : 500=4.69%, 750=0.13% cpu : usr=0.05%, sys=1.49%, ctx=1381, 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=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=144687: Fri Aug 14 20:37:00 2026 read: IOPS=5, BW=82.9KiB/s (84.8kB/s)(6256KiB/75500msec) clat (msec): min=10, max=209, avg=41.86, stdev=33.38 lat (msec): min=10, max=209, avg=41.86, stdev=33.38 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 79], 95.00th=[ 118], | 99.00th=[ 188], 99.50th=[ 207], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 30, max= 320, per=30.94%, avg=93.42, stdev=64.93, samples=132 iops : min= 1, max= 20, avg= 5.08, stdev= 4.15, samples=132 write: IOPS=4, BW=79.9KiB/s (81.8kB/s)(6032KiB/75500msec); 0 zone resets clat (msec): min=60, max=460, avg=156.31, stdev=65.86 lat (msec): min=60, max=460, avg=156.32, stdev=65.86 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 78], 10.00th=[ 88], 20.00th=[ 101], | 30.00th=[ 115], 40.00th=[ 131], 50.00th=[ 144], 60.00th=[ 161], | 70.00th=[ 174], 80.00th=[ 201], 90.00th=[ 241], 95.00th=[ 288], | 99.00th=[ 372], 99.50th=[ 456], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 29, max= 160, per=25.09%, avg=79.79, stdev=31.87, samples=148 iops : min= 1, max= 10, avg= 4.21, stdev= 2.07, samples=148 lat (msec) : 20=10.42%, 50=28.26%, 100=18.10%, 250=39.06%, 500=4.17% cpu : usr=0.05%, sys=1.45%, ctx=1428, 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=144689: Fri Aug 14 20:37:00 2026 read: IOPS=4, BW=78.0KiB/s (79.9kB/s)(6032KiB/77315msec) clat (msec): min=8, max=265, avg=46.56, stdev=41.88 lat (msec): min=8, max=265, avg=46.56, stdev=41.88 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 29], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 64], 90.00th=[ 97], 95.00th=[ 146], | 99.00th=[ 224], 99.50th=[ 243], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 284, per=29.77%, avg=89.92, stdev=59.63, samples=130 iops : min= 1, max= 17, avg= 4.85, stdev= 3.78, samples=130 write: IOPS=5, BW=80.9KiB/s (82.9kB/s)(6256KiB/77315msec); 0 zone resets clat (msec): min=51, max=439, avg=152.20, stdev=64.55 lat (msec): min=51, max=439, avg=152.20, stdev=64.55 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 72], 10.00th=[ 82], 20.00th=[ 96], | 30.00th=[ 112], 40.00th=[ 129], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 176], 80.00th=[ 194], 90.00th=[ 241], 95.00th=[ 284], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 28, max= 192, per=25.81%, avg=82.08, stdev=35.74, samples=149 iops : min= 1, max= 12, avg= 4.34, stdev= 2.30, samples=149 lat (msec) : 10=0.39%, 20=7.94%, 50=27.73%, 100=20.05%, 250=39.84% lat (msec) : 500=4.04% cpu : usr=0.04%, sys=1.51%, ctx=1388, 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=303KiB/s (310kB/s), 72.6KiB/s-82.9KiB/s (74.4kB/s-84.8kB/s), io=23.4MiB (24.5MB), run=75500-79105msec WRITE: bw=319KiB/s (326kB/s), 79.9KiB/s-82.7KiB/s (81.8kB/s-84.7kB/s), io=24.6MiB (25.8MB), run=75500-79105msec 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=144712: Fri Aug 14 20:37:14 2026 read: IOPS=1, BW=1882KiB/s (1927kB/s)(7168KiB/3809msec) clat (msec): min=108, max=270, avg=190.90, stdev=60.11 lat (msec): min=108, max=270, avg=190.90, stdev=60.11 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 153], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 169], 60.00th=[ 228], | 70.00th=[ 228], 80.00th=[ 255], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 2027, max= 4023, per=71.10%, avg=2820.00, stdev=971.75, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1344KiB/s (1376kB/s)(5120KiB/3809msec); 0 zone resets clat (msec): min=207, max=869, avg=466.59, stdev=254.02 lat (msec): min=207, max=869, avg=467.23, stdev=253.94 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 2011, max= 4079, per=45.69%, avg=2537.00, stdev=1028.07, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=3.99%, ctx=81, 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=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=144713: Fri Aug 14 20:37:14 2026 read: IOPS=0, BW=397KiB/s (406kB/s)(2048KiB/5163msec) clat (msec): min=130, max=815, avg=472.76, stdev=484.20 lat (msec): min=130, max=815, avg=472.76, stdev=484.19 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 131], 10.00th=[ 131], 20.00th=[ 131], | 30.00th=[ 131], 40.00th=[ 131], 50.00th=[ 131], 60.00th=[ 818], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1646, max= 2039, per=46.46%, avg=1842.50, stdev=277.89, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1983KiB/s (2031kB/s)(10.0MiB/5163msec); 0 zone resets clat (msec): min=196, max=662, avg=398.86, stdev=143.10 lat (msec): min=196, max=662, avg=398.98, stdev=143.10 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 197], 10.00th=[ 197], 20.00th=[ 205], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 397], | 70.00th=[ 460], 80.00th=[ 510], 90.00th=[ 510], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 1976, max= 4079, per=48.55%, avg=2695.83, stdev=1062.30, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=41.67%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=4.11%, ctx=99, 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=144714: Fri Aug 14 20:37:14 2026 read: IOPS=1, BW=1203KiB/s (1231kB/s)(6144KiB/5109msec) clat (msec): min=120, max=771, avg=400.46, stdev=248.45 lat (msec): min=120, max=771, avg=400.46, stdev=248.45 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 355], 50.00th=[ 355], 60.00th=[ 489], | 70.00th=[ 523], 80.00th=[ 523], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1976, max= 2039, per=50.89%, avg=2018.25, stdev=29.70, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1203KiB/s (1231kB/s)(6144KiB/5109msec); 0 zone resets clat (msec): min=246, max=932, avg=437.55, stdev=255.73 lat (msec): min=246, max=933, avg=437.76, stdev=255.66 clat percentiles (msec): | 1.00th=[ 247], 5.00th=[ 247], 10.00th=[ 247], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 401], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 1709, max= 2027, per=35.27%, avg=1958.60, stdev=139.69, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=8.33%, 1000=16.67% cpu : usr=0.04%, sys=3.56%, ctx=69, 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=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=144716: Fri Aug 14 20:37:14 2026 read: IOPS=1, BW=1117KiB/s (1144kB/s)(5120KiB/4583msec) clat (msec): min=160, max=621, avg=326.48, stdev=187.10 lat (msec): min=160, max=621, avg=326.48, stdev=187.10 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2027, max= 4079, per=68.46%, avg=2715.00, stdev=1181.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1564KiB/s (1602kB/s)(7168KiB/4583msec); 0 zone resets clat (msec): min=209, max=799, avg=416.72, stdev=219.80 lat (msec): min=210, max=799, avg=416.84, stdev=219.83 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 271], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 330], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 642], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1602, max= 3953, per=41.85%, avg=2324.00, stdev=928.63, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=3.43%, ctx=62, 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=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=3967KiB/s (4062kB/s), 397KiB/s-1882KiB/s (406kB/s-1927kB/s), io=20.0MiB (20.0MB), run=3809-5163msec WRITE: bw=5553KiB/s (5687kB/s), 1203KiB/s-1983KiB/s (1231kB/s-2031kB/s), io=28.0MiB (29.4MB), run=3809-5163msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144717: Fri Aug 14 20:37:14 2026 read: IOPS=1, BW=1940KiB/s (1987kB/s)(7168KiB/3694msec) clat (usec): min=649, max=309479, avg=196916.35, stdev=100901.61 lat (usec): min=650, max=309480, avg=196917.96, stdev=100901.50 clat percentiles (usec): | 1.00th=[ 652], 5.00th=[ 652], 10.00th=[ 652], 20.00th=[179307], | 30.00th=[183501], 40.00th=[183501], 50.00th=[196084], 60.00th=[217056], | 70.00th=[217056], 80.00th=[291505], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 1851, max= 4087, per=67.87%, avg=2680.25, stdev=1016.38, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1386KiB/s (1419kB/s)(5120KiB/3694msec); 0 zone resets clat (msec): min=294, max=814, avg=450.13, stdev=219.26 lat (msec): min=294, max=814, avg=450.23, stdev=219.26 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1851, max= 3930, per=47.07%, avg=2602.67, stdev=1152.87, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=50.00%, 1000=8.33% cpu : usr=0.00%, sys=12.40%, ctx=258, 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=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=144718: Fri Aug 14 20:37:14 2026 read: IOPS=0, BW=395KiB/s (404kB/s)(2048KiB/5185msec) clat (msec): min=207, max=285, avg=246.43, stdev=54.98 lat (msec): min=207, max=285, avg=246.43, stdev=54.98 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 207], 10.00th=[ 207], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 207], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 288], 90.00th=[ 288], 95.00th=[ 288], | 99.00th=[ 288], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 1412, max= 2035, per=43.64%, avg=1723.50, stdev=440.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1975KiB/s (2022kB/s)(10.0MiB/5185msec); 0 zone resets clat (msec): min=198, max=1155, avg=434.45, stdev=290.76 lat (msec): min=198, max=1155, avg=434.54, stdev=290.76 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 199], 10.00th=[ 199], 20.00th=[ 226], | 30.00th=[ 264], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 355], | 70.00th=[ 393], 80.00th=[ 542], 90.00th=[ 651], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1984, max= 4079, per=47.77%, avg=2641.17, stdev=975.59, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=12.21%, ctx=206, 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=144719: Fri Aug 14 20:37:14 2026 read: IOPS=1, BW=1726KiB/s (1768kB/s)(6144KiB/3559msec) clat (usec): min=597, max=339424, avg=184699.58, stdev=151457.97 lat (usec): min=599, max=339426, avg=184705.08, stdev=151462.29 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 652], | 30.00th=[ 652], 40.00th=[202376], 50.00th=[202376], 60.00th=[240124], | 70.00th=[325059], 80.00th=[325059], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 1851, max= 3968, per=82.29%, avg=3249.67, stdev=1211.43, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1726KiB/s (1768kB/s)(6144KiB/3559msec); 0 zone resets clat (msec): min=104, max=982, avg=347.76, stdev=320.83 lat (msec): min=104, max=982, avg=347.85, stdev=320.84 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 174], | 30.00th=[ 174], 40.00th=[ 220], 50.00th=[ 220], 60.00th=[ 275], | 70.00th=[ 330], 80.00th=[ 330], 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= 1408, max= 3968, per=41.84%, avg=2313.50, stdev=1133.33, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 250=41.67%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=13.55%, ctx=167, 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=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=144720: Fri Aug 14 20:37:14 2026 read: IOPS=1, BW=1124KiB/s (1151kB/s)(5120KiB/4556msec) clat (usec): min=1465, max=394645, avg=244686.37, stdev=145436.22 lat (usec): min=1466, max=394646, avg=244687.89, stdev=145436.29 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1467], 10.00th=[ 1467], 20.00th=[ 1467], | 30.00th=[270533], 40.00th=[270533], 50.00th=[274727], 60.00th=[274727], | 70.00th=[283116], 80.00th=[283116], 90.00th=[396362], 95.00th=[396362], | 99.00th=[396362], 99.50th=[396362], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 3703, max= 4071, per=98.43%, avg=3887.00, stdev=260.22, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1573KiB/s (1611kB/s)(7168KiB/4556msec); 0 zone resets clat (msec): min=184, max=997, avg=446.53, stdev=308.03 lat (msec): min=185, max=997, avg=446.69, stdev=308.14 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 249], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 313], 60.00th=[ 342], | 70.00th=[ 342], 80.00th=[ 768], 90.00th=[ 995], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 1396, max= 4079, per=40.83%, avg=2257.50, stdev=926.74, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 2=8.33%, 250=16.67%, 500=58.33%, 1000=16.67% cpu : usr=0.00%, sys=10.34%, ctx=193, 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=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=3950KiB/s (4045kB/s), 395KiB/s-1940KiB/s (404kB/s-1987kB/s), io=20.0MiB (20.0MB), run=3559-5185msec WRITE: bw=5530KiB/s (5663kB/s), 1386KiB/s-1975KiB/s (1419kB/s-2022kB/s), io=28.0MiB (29.4MB), run=3559-5185msec 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=144729: Fri Aug 14 20:37:29 2026 read: IOPS=1, BW=4211KiB/s (4312kB/s)(12.0MiB/2918msec) clat (msec): min=832, max=1042, avg=905.34, stdev=118.60 lat (msec): min=832, max=1042, avg=905.34, stdev=118.60 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 1045], 80.00th=[ 1045], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=12.00%, ctx=219, 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=144730: Fri Aug 14 20:37:29 2026 read: IOPS=0, BW=1266KiB/s (1297kB/s)(4096KiB/3235msec) clat (nsec): min=832033k, max=832033k, avg=832032820.00, stdev= 0.00 lat (nsec): min=832035k, max=832035k, avg=832035152.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2532KiB/s (2593kB/s)(8192KiB/3235msec); 0 zone resets clat (msec): min=645, max=1565, avg=1105.08, stdev=650.43 lat (msec): min=645, max=1565, avg=1105.59, stdev=650.46 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 1569], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8192, max= 8192, per=97.63%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.06%, sys=3.68%, ctx=73, 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=144731: Fri Aug 14 20:37:29 2026 write: IOPS=0, BW=3147KiB/s (3222kB/s)(12.0MiB/3905msec); 0 zone resets clat (msec): min=433, max=1787, avg=1267.83, stdev=730.11 lat (msec): min=434, max=1788, avg=1268.46, stdev=729.58 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 1586], 50.00th=[ 1586], 60.00th=[ 1586], | 70.00th=[ 1787], 80.00th=[ 1787], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 8094, max= 8192, per=97.04%, avg=8143.00, stdev=69.30, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.77%, ctx=54, 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=144732: Fri Aug 14 20:37:29 2026 write: IOPS=1, BW=4695KiB/s (4808kB/s)(12.0MiB/2617msec); 0 zone resets clat (msec): min=312, max=1828, avg=837.33, stdev=858.71 lat (msec): min=313, max=1828, avg=837.87, stdev=858.60 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 313], 10.00th=[ 313], 20.00th=[ 313], | 30.00th=[ 313], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7488, max= 8143, per=93.14%, avg=7815.50, stdev=463.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.20%, ctx=44, 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=5065KiB/s (5186kB/s), 1266KiB/s-4211KiB/s (1297kB/s-4312kB/s), io=16.0MiB (16.8MB), run=2918-3235msec WRITE: bw=8391KiB/s (8593kB/s), 2532KiB/s-4695KiB/s (2593kB/s-4808kB/s), io=32.0MiB (33.6MB), run=2617-3905msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144733: Fri Aug 14 20:37:29 2026 read: IOPS=1, BW=4117KiB/s (4215kB/s)(12.0MiB/2985msec) clat (msec): min=818, max=1077, avg=940.81, stdev=129.84 lat (msec): min=818, max=1077, avg=940.81, stdev=129.84 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 8094, max= 8143, per=100.00%, avg=8118.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.32%, ctx=51, 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=144734: Fri Aug 14 20:37:29 2026 read: IOPS=0, BW=1053KiB/s (1079kB/s)(4096KiB/3888msec) clat (nsec): min=1350.3M, max=1350.3M, avg=1350252524.00, stdev= 0.00 lat (nsec): min=1350.3M, max=1350.3M, avg=1350255809.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1351], 5.00th=[ 1351], 10.00th=[ 1351], 20.00th=[ 1351], | 30.00th=[ 1351], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2107KiB/s (2158kB/s)(8192KiB/3888msec); 0 zone resets clat (msec): min=465, max=1896, avg=1181.15, stdev=1012.24 lat (msec): min=465, max=1897, avg=1181.77, stdev=1012.47 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 464], 60.00th=[ 1905], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.13%, sys=2.52%, ctx=43, 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=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=144735: Fri Aug 14 20:37:29 2026 write: IOPS=0, BW=2744KiB/s (2810kB/s)(12.0MiB/4478msec); 0 zone resets clat (msec): min=395, max=2083, avg=1461.64, stdev=927.50 lat (msec): min=397, max=2083, avg=1462.70, stdev=926.52 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 1905], 50.00th=[ 1905], 60.00th=[ 1905], | 70.00th=[ 2089], 80.00th=[ 2089], 90.00th=[ 2089], 95.00th=[ 2089], | 99.00th=[ 2089], 99.50th=[ 2089], 99.90th=[ 2089], 99.95th=[ 2089], | 99.99th=[ 2089] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.37%, ctx=47, 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=144736: Fri Aug 14 20:37:29 2026 write: IOPS=1, BW=4122KiB/s (4221kB/s)(12.0MiB/2981msec); 0 zone resets clat (msec): min=715, max=1326, avg=971.92, stdev=317.33 lat (msec): min=715, max=1327, avg=973.51, stdev=317.34 clat percentiles (msec): | 1.00th=[ 718], 5.00th=[ 718], 10.00th=[ 718], 20.00th=[ 718], | 30.00th=[ 718], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 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= 7984, max= 8094, per=100.00%, avg=8039.00, stdev=77.78, 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=3.76%, ctx=55, 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=4214KiB/s (4315kB/s), 1053KiB/s-4117KiB/s (1079kB/s-4215kB/s), io=16.0MiB (16.8MB), run=2985-3888msec WRITE: bw=7318KiB/s (7493kB/s), 2107KiB/s-4122KiB/s (2158kB/s-4221kB/s), io=32.0MiB (33.6MB), run=2981-4478msec