== sanity test 398b: DIO and buffer IO race ============== 21:14:59 (1775870099) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.47914 s, 9.2 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=150509: Fri Apr 10 21:17:03 2026 read: IOPS=13, BW=55.8KiB/s (57.2kB/s)(5992KiB/107328msec) clat (usec): min=34, max=906847, avg=35046.60, stdev=34670.71 lat (usec): min=35, max=906849, avg=35048.83, stdev=34670.73 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 59], 10.00th=[ 174], 20.00th=[ 16909], | 30.00th=[ 21365], 40.00th=[ 25560], 50.00th=[ 29754], 60.00th=[ 34341], | 70.00th=[ 41681], 80.00th=[ 52167], 90.00th=[ 64226], 95.00th=[ 77071], | 99.00th=[128451], 99.50th=[145753], 99.90th=[295699], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 152, per=25.29%, avg=55.64, stdev=22.84, samples=211 iops : min= 1, max= 38, avg=13.31, stdev= 5.77, samples=211 write: IOPS=14, BW=58.7KiB/s (60.1kB/s)(6296KiB/107328msec); 0 zone resets clat (usec): min=1040, max=397456, avg=34558.08, stdev=36501.94 lat (usec): min=1041, max=397458, avg=34561.17, stdev=36501.33 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1385], 10.00th=[ 2057], 20.00th=[ 4621], | 30.00th=[ 8356], 40.00th=[ 17171], 50.00th=[ 25822], 60.00th=[ 34341], | 70.00th=[ 44303], 80.00th=[ 56886], 90.00th=[ 80217], 95.00th=[100140], | 99.00th=[162530], 99.50th=[181404], 99.90th=[346031], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 15, max= 119, per=25.27%, avg=58.38, stdev=21.06, samples=211 iops : min= 3, max= 29, avg=14.00, stdev= 5.28, samples=211 lat (usec) : 50=0.52%, 100=3.91%, 250=0.55%, 500=0.20%, 750=0.07% lat (msec) : 2=5.01%, 4=4.30%, 10=8.07%, 20=12.96%, 50=40.82% lat (msec) : 100=20.35%, 250=3.03%, 500=0.20%, 1000=0.03% cpu : usr=0.09%, sys=6.34%, ctx=6847, majf=0, minf=17 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=150510: Fri Apr 10 21:17:03 2026 read: IOPS=13, BW=54.7KiB/s (56.1kB/s)(5940KiB/108504msec) clat (usec): min=32, max=211240, avg=34103.37, stdev=24999.16 lat (usec): min=32, max=211241, avg=34107.93, stdev=25000.69 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 57], 10.00th=[ 94], 20.00th=[ 16188], | 30.00th=[ 20317], 40.00th=[ 25297], 50.00th=[ 29754], 60.00th=[ 34866], | 70.00th=[ 41681], 80.00th=[ 51119], 90.00th=[ 66323], 95.00th=[ 79168], | 99.00th=[110625], 99.50th=[129500], 99.90th=[208667], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 7, max= 134, per=24.79%, avg=54.54, stdev=23.01, samples=213 iops : min= 1, max= 33, avg=13.03, stdev= 5.78, samples=213 write: IOPS=14, BW=58.5KiB/s (59.9kB/s)(6348KiB/108504msec); 0 zone resets clat (usec): min=880, max=865578, avg=36173.67, stdev=43071.06 lat (usec): min=881, max=865580, avg=36186.25, stdev=43064.40 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1352], 10.00th=[ 1860], 20.00th=[ 4113], | 30.00th=[ 7439], 40.00th=[ 15533], 50.00th=[ 25822], 60.00th=[ 35390], | 70.00th=[ 46400], 80.00th=[ 62653], 90.00th=[ 85459], 95.00th=[102237], | 99.00th=[162530], 99.50th=[210764], 99.90th=[341836], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 174, per=25.20%, avg=58.20, stdev=22.83, samples=213 iops : min= 1, max= 43, avg=13.95, stdev= 5.75, samples=213 lat (usec) : 50=0.78%, 100=4.26%, 250=0.42%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=5.66%, 4=4.46%, 10=8.11%, 20=13.22%, 50=38.18% lat (msec) : 100=21.00%, 250=3.58%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=6.29%, ctx=6720, majf=0, minf=18 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=150511: Fri Apr 10 21:17:03 2026 read: IOPS=13, BW=55.4KiB/s (56.8kB/s)(6028KiB/108769msec) clat (usec): min=28, max=386455, avg=33857.59, stdev=27418.48 lat (usec): min=28, max=386456, avg=33866.27, stdev=27427.43 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 81], 20.00th=[ 14746], | 30.00th=[ 19792], 40.00th=[ 24249], 50.00th=[ 29230], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 51643], 90.00th=[ 67634], 95.00th=[ 79168], | 99.00th=[110625], 99.50th=[133694], 99.90th=[358613], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 15, max= 142, per=25.16%, avg=55.35, stdev=24.49, samples=212 iops : min= 3, max= 35, avg=13.24, stdev= 6.16, samples=212 write: IOPS=14, BW=57.6KiB/s (58.9kB/s)(6260KiB/108769msec); 0 zone resets clat (usec): min=1097, max=909237, avg=36594.03, stdev=43805.64 lat (usec): min=1098, max=909238, avg=36604.54, stdev=43813.96 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1385], 10.00th=[ 1975], 20.00th=[ 4424], | 30.00th=[ 8979], 40.00th=[ 18744], 50.00th=[ 27132], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[105382], | 99.00th=[154141], 99.50th=[193987], 99.90th=[497026], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 134, per=24.71%, avg=57.09, stdev=20.48, samples=213 iops : min= 1, max= 33, avg=13.67, stdev= 5.17, samples=213 lat (usec) : 50=1.17%, 100=4.46%, 250=0.26%, 500=0.10%, 750=0.07% lat (msec) : 2=5.37%, 4=3.91%, 10=7.26%, 20=13.31%, 50=39.65% lat (msec) : 100=20.44%, 250=3.78%, 500=0.20%, 1000=0.03% cpu : usr=0.08%, sys=6.19%, ctx=6768, majf=0, minf=17 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=150512: Fri Apr 10 21:17:03 2026 read: IOPS=14, BW=57.4KiB/s (58.8kB/s)(6052KiB/105453msec) clat (usec): min=33, max=486013, avg=33313.15, stdev=27226.87 lat (usec): min=33, max=486014, avg=33315.21, stdev=27227.23 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 143], 20.00th=[ 16450], | 30.00th=[ 20317], 40.00th=[ 24249], 50.00th=[ 28967], 60.00th=[ 34341], | 70.00th=[ 40633], 80.00th=[ 48497], 90.00th=[ 60031], 95.00th=[ 74974], | 99.00th=[109577], 99.50th=[126354], 99.90th=[350225], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 7, max= 149, per=26.02%, avg=57.24, stdev=22.89, samples=207 iops : min= 1, max= 37, avg=13.71, stdev= 5.77, samples=207 write: IOPS=14, BW=59.1KiB/s (60.6kB/s)(6236KiB/105453msec); 0 zone resets clat (usec): min=1065, max=844251, avg=35040.91, stdev=40525.14 lat (usec): min=1066, max=844253, avg=35043.61, stdev=40524.75 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1336], 10.00th=[ 1942], 20.00th=[ 4490], | 30.00th=[ 8356], 40.00th=[ 16450], 50.00th=[ 25822], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 58983], 90.00th=[ 79168], 95.00th=[104334], | 99.00th=[152044], 99.50th=[173016], 99.90th=[371196], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 120, per=25.50%, avg=58.90, stdev=20.38, samples=207 iops : min= 1, max= 30, avg=14.13, stdev= 5.13, samples=207 lat (usec) : 50=0.81%, 100=3.97%, 250=0.29%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.40%, 4=4.04%, 10=7.52%, 20=14.00%, 50=41.31% lat (msec) : 100=18.75%, 250=3.65%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=6.49%, ctx=6643, majf=0, minf=19 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=221KiB/s (226kB/s), 54.7KiB/s-57.4KiB/s (56.1kB/s-58.8kB/s), io=23.4MiB (24.6MB), run=105453-108769msec WRITE: bw=231KiB/s (237kB/s), 57.6KiB/s-59.1KiB/s (58.9kB/s-60.6kB/s), io=24.6MiB (25.7MB), run=105453-108769msec fio: pid=150516, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=150514: Fri Apr 10 21:19:14 2026 read: IOPS=6, BW=25.1KiB/s (25.7kB/s)(5992KiB/238939msec) clat (msec): min=5, max=981, avg=32.34, stdev=41.43 lat (msec): min=5, max=981, avg=32.34, stdev=41.43 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=[ 32], 80.00th=[ 41], 90.00th=[ 65], 95.00th=[ 93], | 99.00th=[ 163], 99.50th=[ 207], 99.90th=[ 506], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 88, per=29.34%, avg=26.99, stdev=17.70, samples=430 iops : min= 1, max= 22, avg= 6.15, stdev= 4.48, samples=430 write: IOPS=6, BW=26.3KiB/s (26.0kB/s)(6296KiB/238939msec); 0 zone resets clat (msec): min=36, max=471, avg=120.95, stdev=52.36 lat (msec): min=36, max=471, avg=120.95, stdev=52.36 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 79], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 109], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 190], 95.00th=[ 224], | 99.00th=[ 288], 99.50th=[ 334], 99.90th=[ 426], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 7, max= 48, per=26.81%, avg=26.01, stdev=10.50, samples=468 iops : min= 1, max= 12, avg= 5.91, stdev= 2.70, samples=468 lat (msec) : 10=3.91%, 20=18.10%, 50=20.31%, 100=25.72%, 250=30.34% lat (msec) : 500=1.56%, 750=0.03%, 1000=0.03% cpu : usr=0.04%, sys=1.46%, ctx=5685, 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=150515: Fri Apr 10 21:19:14 2026 read: IOPS=6, BW=24.0KiB/s (25.6kB/s)(5940KiB/237613msec) clat (msec): min=5, max=891, avg=30.86, stdev=37.62 lat (msec): min=5, max=891, avg=30.86, stdev=37.62 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 39], 90.00th=[ 61], 95.00th=[ 82], | 99.00th=[ 155], 99.50th=[ 182], 99.90th=[ 506], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 95, per=29.56%, avg=27.20, stdev=17.26, samples=424 iops : min= 1, max= 23, avg= 6.21, stdev= 4.36, samples=424 write: IOPS=6, BW=26.7KiB/s (27.4kB/s)(6348KiB/237613msec); 0 zone resets clat (msec): min=39, max=547, avg=120.75, stdev=53.69 lat (msec): min=39, max=547, avg=120.75, stdev=53.69 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 68], 20.00th=[ 78], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 108], 60.00th=[ 121], | 70.00th=[ 134], 80.00th=[ 159], 90.00th=[ 194], 95.00th=[ 228], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 418], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 55, per=27.03%, avg=26.22, stdev=10.81, samples=469 iops : min= 1, max= 13, avg= 5.96, stdev= 2.78, samples=469 lat (msec) : 10=3.52%, 20=18.82%, 50=19.79%, 100=27.02%, 250=29.43% lat (msec) : 500=1.33%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.48%, ctx=5625, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=150516: Fri Apr 10 21:19:14 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(4092KiB/182641msec) clat (msec): min=6, max=505, avg=36.66, stdev=36.04 lat (msec): min=6, max=505, avg=36.66, stdev=36.04 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 41], 80.00th=[ 54], 90.00th=[ 75], 95.00th=[ 97], | 99.00th=[ 176], 99.50th=[ 192], 99.90th=[ 288], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 7, max= 103, per=25.78%, avg=23.71, stdev=16.23, samples=333 iops : min= 1, max= 25, avg= 5.31, stdev= 4.09, samples=333 write: IOPS=5, BW=23.7KiB/s (24.2kB/s)(4324KiB/182641msec); 0 zone resets clat (msec): min=36, max=973, avg=134.15, stdev=62.20 lat (msec): min=36, max=973, avg=134.16, stdev=62.21 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 213], 95.00th=[ 243], | 99.00th=[ 305], 99.50th=[ 334], 99.90th=[ 388], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 7, max= 56, per=24.04%, avg=23.32, stdev=10.50, samples=358 iops : min= 1, max= 14, avg= 5.21, stdev= 2.68, samples=358 lat (msec) : 10=3.28%, 20=16.10%, 50=18.91%, 100=24.61%, 250=34.92% lat (msec) : 500=2.04%, 750=0.05%, 1000=0.05% cpu : usr=0.04%, sys=1.33%, ctx=3438, majf=0, minf=20 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=1024,1081,0,0 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=150517: Fri Apr 10 21:19:14 2026 read: IOPS=6, BW=25.4KiB/s (25.0kB/s)(6052KiB/238658msec) clat (msec): min=5, max=457, avg=31.08, stdev=30.08 lat (msec): min=5, max=457, avg=31.09, stdev=30.08 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 42], 90.00th=[ 66], 95.00th=[ 88], | 99.00th=[ 142], 99.50th=[ 165], 99.90th=[ 380], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 7, max= 119, per=29.76%, avg=27.38, stdev=18.37, samples=429 iops : min= 1, max= 29, avg= 6.25, stdev= 4.65, samples=429 write: IOPS=6, BW=26.1KiB/s (26.8kB/s)(6236KiB/238658msec); 0 zone resets clat (msec): min=33, max=1140, avg=122.84, stdev=60.46 lat (msec): min=33, max=1140, avg=122.84, stdev=60.45 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 69], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 99], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 138], 80.00th=[ 159], 90.00th=[ 197], 95.00th=[ 226], | 99.00th=[ 292], 99.50th=[ 338], 99.90th=[ 550], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 55, per=26.48%, avg=25.69, stdev=10.52, samples=470 iops : min= 1, max= 13, avg= 5.82, stdev= 2.70, samples=470 lat (msec) : 10=4.17%, 20=18.46%, 50=19.69%, 100=26.63%, 250=29.23% lat (msec) : 500=1.73%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.48%, ctx=5728, 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=92.4KiB/s (94.6kB/s), 22.4KiB/s-25.4KiB/s (22.9kB/s-25.0kB/s), io=21.6MiB (22.6MB), run=182641-238939msec WRITE: bw=97.1KiB/s (99.4kB/s), 23.7KiB/s-26.7KiB/s (24.2kB/s-27.4kB/s), io=22.7MiB (23.8MB), run=182641-238939msec 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=150577: Fri Apr 10 21:19:50 2026 read: IOPS=14, BW=230KiB/s (235kB/s)(5920KiB/25773msec) clat (usec): min=29, max=288160, avg=34918.04, stdev=30675.27 lat (usec): min=29, max=288161, avg=34920.31, stdev=30675.20 clat percentiles (usec): | 1.00th=[ 36], 5.00th=[ 53], 10.00th=[ 60], 20.00th=[ 109], | 30.00th=[ 20579], 40.00th=[ 26870], 50.00th=[ 32900], 60.00th=[ 38536], | 70.00th=[ 45351], 80.00th=[ 54789], 90.00th=[ 70779], 95.00th=[ 80217], | 99.00th=[129500], 99.50th=[193987], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 95, max= 503, per=24.56%, avg=224.22, stdev=77.59, samples=50 iops : min= 5, max= 31, avg=13.22, stdev= 4.90, samples=50 write: IOPS=15, BW=247KiB/s (253kB/s)(6368KiB/25773msec); 0 zone resets clat (usec): min=1431, max=205252, avg=31933.76, stdev=33462.22 lat (usec): min=1431, max=205254, avg=31936.27, stdev=33462.10 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 1762], 10.00th=[ 2737], 20.00th=[ 5080], | 30.00th=[ 8586], 40.00th=[ 13566], 50.00th=[ 21365], 60.00th=[ 32113], | 70.00th=[ 39060], 80.00th=[ 53216], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[152044], 99.50th=[185598], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 81, max= 503, per=25.45%, avg=244.58, stdev=96.17, samples=50 iops : min= 5, max= 31, avg=14.52, stdev= 6.07, samples=50 lat (usec) : 50=1.17%, 100=8.20%, 250=1.17%, 500=0.26%, 750=0.13% lat (msec) : 2=3.91%, 4=3.91%, 10=10.03%, 20=10.29%, 50=38.28% lat (msec) : 100=19.01%, 250=3.52%, 500=0.13% cpu : usr=0.10%, sys=6.76%, ctx=1550, 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=150578: Fri Apr 10 21:19:50 2026 read: IOPS=13, BW=219KiB/s (224kB/s)(5744KiB/26209msec) clat (usec): min=38, max=231778, avg=37450.83, stdev=33432.03 lat (usec): min=38, max=231779, avg=37452.72, stdev=33431.90 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 13698], | 30.00th=[ 22152], 40.00th=[ 27395], 50.00th=[ 31851], 60.00th=[ 36439], | 70.00th=[ 43254], 80.00th=[ 55313], 90.00th=[ 73925], 95.00th=[106431], | 99.00th=[152044], 99.50th=[206570], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 27, max= 472, per=23.76%, avg=216.94, stdev=95.56, samples=51 iops : min= 1, max= 29, avg=12.76, stdev= 6.01, samples=51 write: IOPS=15, BW=250KiB/s (256kB/s)(6544KiB/26209msec); 0 zone resets clat (usec): min=1508, max=243786, avg=30703.87, stdev=35863.80 lat (usec): min=1510, max=243787, avg=30706.58, stdev=35863.52 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1876], 10.00th=[ 3097], 20.00th=[ 5014], | 30.00th=[ 7504], 40.00th=[ 10159], 50.00th=[ 16450], 60.00th=[ 25822], | 70.00th=[ 36963], 80.00th=[ 52167], 90.00th=[ 74974], 95.00th=[ 96994], | 99.00th=[168821], 99.50th=[185598], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 54, max= 446, per=25.64%, avg=246.37, stdev=98.44, samples=51 iops : min= 3, max= 27, avg=14.61, stdev= 6.15, samples=51 lat (usec) : 50=0.52%, 100=6.90%, 250=0.52%, 500=0.13%, 750=0.39% lat (msec) : 2=3.26%, 4=4.95%, 10=13.15%, 20=10.81%, 50=37.24% lat (msec) : 100=17.19%, 250=4.95% cpu : usr=0.10%, sys=6.60%, ctx=1509, 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=150579: Fri Apr 10 21:19:50 2026 read: IOPS=15, BW=253KiB/s (259kB/s)(6256KiB/24720msec) clat (usec): min=34, max=186720, avg=34218.75, stdev=27154.04 lat (usec): min=34, max=186722, avg=34224.20, stdev=27153.30 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 4883], | 30.00th=[ 21627], 40.00th=[ 27395], 50.00th=[ 31589], 60.00th=[ 36439], | 70.00th=[ 44827], 80.00th=[ 52691], 90.00th=[ 64750], 95.00th=[ 81265], | 99.00th=[128451], 99.50th=[143655], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 93, max= 447, per=28.71%, avg=262.13, stdev=90.69, samples=47 iops : min= 5, max= 27, avg=15.60, stdev= 5.70, samples=47 write: IOPS=15, BW=244KiB/s (250kB/s)(6032KiB/24720msec); 0 zone resets clat (usec): min=1536, max=205682, avg=29414.27, stdev=31227.99 lat (usec): min=1537, max=205684, avg=29416.39, stdev=31228.14 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1844], 10.00th=[ 2507], 20.00th=[ 4490], | 30.00th=[ 7767], 40.00th=[ 12125], 50.00th=[ 19530], 60.00th=[ 27919], | 70.00th=[ 36439], 80.00th=[ 50594], 90.00th=[ 71828], 95.00th=[ 84411], | 99.00th=[156238], 99.50th=[191890], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 54, max= 472, per=25.20%, avg=242.15, stdev=93.58, samples=48 iops : min= 3, max= 29, avg=14.37, stdev= 5.86, samples=48 lat (usec) : 50=1.17%, 100=6.90%, 250=1.17%, 500=0.26%, 750=0.26% lat (msec) : 2=2.99%, 4=6.77%, 10=7.94%, 20=10.81%, 50=39.45% lat (msec) : 100=19.53%, 250=2.73% cpu : usr=0.07%, sys=6.76%, ctx=1586, 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=150580: Fri Apr 10 21:19:50 2026 read: IOPS=15, BW=243KiB/s (249kB/s)(6032KiB/24810msec) clat (usec): min=33, max=212247, avg=36797.16, stdev=30635.31 lat (usec): min=33, max=212249, avg=36798.31, stdev=30635.34 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 15270], | 30.00th=[ 23987], 40.00th=[ 27919], 50.00th=[ 33424], 60.00th=[ 39060], | 70.00th=[ 45351], 80.00th=[ 54264], 90.00th=[ 67634], 95.00th=[ 83362], | 99.00th=[181404], 99.50th=[208667], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 64, max= 478, per=26.53%, avg=242.21, stdev=85.07, samples=48 iops : min= 4, max= 29, avg=14.35, stdev= 5.32, samples=48 write: IOPS=15, BW=252KiB/s (258kB/s)(6256KiB/24810msec); 0 zone resets clat (usec): min=1555, max=226507, avg=27394.81, stdev=27773.77 lat (usec): min=1557, max=226509, avg=27401.40, stdev=27770.67 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1909], 10.00th=[ 2737], 20.00th=[ 5211], | 30.00th=[ 7832], 40.00th=[ 11076], 50.00th=[ 17171], 60.00th=[ 27132], | 70.00th=[ 33817], 80.00th=[ 47973], 90.00th=[ 65274], 95.00th=[ 82314], | 99.00th=[121111], 99.50th=[126354], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 108, max= 472, per=26.16%, avg=251.44, stdev=88.46, samples=48 iops : min= 6, max= 29, avg=14.94, stdev= 5.62, samples=48 lat (usec) : 50=0.91%, 100=7.55%, 250=0.39%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.39%, 4=4.82%, 10=10.68%, 20=9.90%, 50=40.49% lat (msec) : 100=19.27%, 250=2.34% cpu : usr=0.06%, sys=7.23%, ctx=1561, 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=914KiB/s (936kB/s), 219KiB/s-253KiB/s (224kB/s-259kB/s), io=23.4MiB (24.5MB), run=24720-26209msec WRITE: bw=962KiB/s (985kB/s), 244KiB/s-252KiB/s (250kB/s-258kB/s), io=24.6MiB (25.8MB), run=24720-26209msec fio: pid=150573, err=5/file:backend.c:481, func=full resid, error=Input/output error fio: pid=150574, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=150572: Fri Apr 10 21:20:22 2026 read: IOPS=6, BW=100KiB/s (102kB/s)(5920KiB/59183msec) clat (msec): min=6, max=275, avg=32.56, stdev=34.35 lat (msec): min=6, max=275, avg=32.56, stdev=34.35 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 70], 95.00th=[ 100], | 99.00th=[ 176], 99.50th=[ 236], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 352, per=32.80%, avg=108.24, stdev=68.17, samples=107 iops : min= 1, max= 22, avg= 6.02, stdev= 4.36, samples=107 write: IOPS=6, BW=108KiB/s (110kB/s)(6368KiB/59183msec); 0 zone resets clat (msec): min=44, max=361, avg=118.30, stdev=55.15 lat (msec): min=44, max=361, avg=118.30, stdev=55.15 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 74], | 30.00th=[ 82], 40.00th=[ 93], 50.00th=[ 106], 60.00th=[ 118], | 70.00th=[ 134], 80.00th=[ 153], 90.00th=[ 201], 95.00th=[ 236], | 99.00th=[ 309], 99.50th=[ 326], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 31, max= 192, per=30.45%, avg=106.89, stdev=46.18, samples=117 iops : min= 1, max= 12, avg= 5.93, stdev= 3.01, samples=117 lat (msec) : 10=3.78%, 20=18.75%, 50=18.36%, 100=28.65%, 250=28.78% lat (msec) : 500=1.69% cpu : usr=0.05%, sys=1.54%, ctx=1425, 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=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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=150573: Fri Apr 10 21:20:22 2026 read: IOPS=3, BW=63.2KiB/s (64.7kB/s)(2320KiB/36717msec) clat (msec): min=8, max=267, avg=54.87, stdev=45.07 lat (msec): min=8, max=267, avg=54.87, stdev=45.07 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 25], 40.00th=[ 32], 50.00th=[ 39], 60.00th=[ 53], | 70.00th=[ 64], 80.00th=[ 88], 90.00th=[ 117], 95.00th=[ 134], | 99.00th=[ 209], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 30, max= 221, per=24.12%, avg=79.60, stdev=48.77, samples=57 iops : min= 1, max= 13, avg= 4.16, stdev= 3.16, samples=57 write: IOPS=4, BW=79.3KiB/s (81.2kB/s)(2912KiB/36717msec); 0 zone resets clat (msec): min=65, max=503, avg=156.79, stdev=68.12 lat (msec): min=65, max=503, avg=156.80, stdev=68.12 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 80], 10.00th=[ 86], 20.00th=[ 95], | 30.00th=[ 110], 40.00th=[ 126], 50.00th=[ 142], 60.00th=[ 163], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 351], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 31, max= 191, per=22.97%, avg=80.63, stdev=36.77, samples=70 iops : min= 1, max= 11, avg= 4.21, stdev= 2.41, samples=70 lat (msec) : 10=0.61%, 20=7.93%, 50=17.68%, 100=23.48%, 250=44.21% lat (msec) : 500=5.49%, 750=0.30% cpu : usr=0.01%, sys=1.26%, ctx=524, majf=0, minf=18 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=146,182,0,0 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=150574: Fri Apr 10 21:20:22 2026 read: IOPS=6, BW=100KiB/s (102kB/s)(5296KiB/52949msec) clat (msec): min=6, max=223, avg=33.76, stdev=31.07 lat (msec): min=6, max=223, avg=33.76, stdev=31.07 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 73], 95.00th=[ 103], | 99.00th=[ 163], 99.50th=[ 174], 99.90th=[ 224], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 31, max= 410, per=33.06%, avg=109.10, stdev=71.27, samples=96 iops : min= 1, max= 25, avg= 6.07, stdev= 4.54, samples=96 write: IOPS=6, BW=99.4KiB/s (102kB/s)(5264KiB/52949msec); 0 zone resets clat (msec): min=40, max=456, avg=126.24, stdev=58.40 lat (msec): min=40, max=456, avg=126.25, stdev=58.40 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 87], 40.00th=[ 99], 50.00th=[ 114], 60.00th=[ 131], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 207], 95.00th=[ 239], | 99.00th=[ 284], 99.50th=[ 384], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 31, max= 224, per=28.53%, avg=100.13, stdev=44.02, samples=104 iops : min= 1, max= 14, avg= 5.51, stdev= 2.91, samples=104 lat (msec) : 10=2.27%, 20=18.91%, 50=20.57%, 100=26.48%, 250=29.80% lat (msec) : 500=1.82% cpu : usr=0.03%, sys=1.63%, ctx=1270, majf=0, minf=18 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=332,329,0,0 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=150575: Fri Apr 10 21:20:22 2026 read: IOPS=6, BW=103KiB/s (105kB/s)(6032KiB/58726msec) clat (msec): min=6, max=205, avg=31.28, stdev=32.36 lat (msec): min=6, max=205, avg=31.30, stdev=32.36 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 37], 90.00th=[ 69], 95.00th=[ 105], | 99.00th=[ 180], 99.50th=[ 203], 99.90th=[ 207], 99.95th=[ 207], | 99.99th=[ 207] bw ( KiB/s): min= 31, max= 287, per=34.76%, avg=114.72, stdev=68.47, samples=103 iops : min= 1, max= 17, avg= 6.43, stdev= 4.35, samples=103 write: IOPS=6, BW=107KiB/s (109kB/s)(6256KiB/58726msec); 0 zone resets clat (msec): min=40, max=465, avg=119.25, stdev=61.73 lat (msec): min=40, max=465, avg=119.25, stdev=61.73 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 101], 60.00th=[ 113], | 70.00th=[ 132], 80.00th=[ 161], 90.00th=[ 199], 95.00th=[ 249], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 30, max= 224, per=30.27%, avg=106.23, stdev=49.32, samples=116 iops : min= 1, max= 14, avg= 5.89, stdev= 3.21, samples=116 lat (msec) : 10=3.39%, 20=20.83%, 50=19.01%, 100=28.78%, 250=25.52% lat (msec) : 500=2.47% cpu : usr=0.05%, sys=1.68%, ctx=1529, 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=331KiB/s (339kB/s), 63.2KiB/s-103KiB/s (64.7kB/s-105kB/s), io=19.1MiB (20.0MB), run=36717-59183msec WRITE: bw=351KiB/s (360kB/s), 79.3KiB/s-108KiB/s (81.2kB/s-110kB/s), io=20.3MiB (21.3MB), run=36717-59183msec 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=150596: Fri Apr 10 21:20:36 2026 read: IOPS=2, BW=2886KiB/s (2955kB/s)(7168KiB/2484msec) clat (usec): min=510, max=292230, avg=185682.25, stdev=94724.12 lat (usec): min=512, max=292232, avg=185683.75, stdev=94723.89 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[145753], | 30.00th=[187696], 40.00th=[187696], 50.00th=[202376], 60.00th=[208667], | 70.00th=[208667], 80.00th=[263193], 90.00th=[291505], 95.00th=[291505], | 99.00th=[291505], 99.50th=[291505], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 2019, max= 4718, per=55.40%, avg=2924.00, stdev=1553.67, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=2, BW=2061KiB/s (2111kB/s)(5120KiB/2484msec); 0 zone resets clat (msec): min=137, max=294, avg=218.05, stdev=74.75 lat (msec): min=137, max=294, avg=218.15, stdev=74.77 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 138], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 251], 60.00th=[ 251], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 2019, max= 4071, per=36.65%, avg=2708.33, stdev=1180.13, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=41.67% cpu : usr=0.00%, sys=19.90%, ctx=471, 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=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=150597: Fri Apr 10 21:20:36 2026 read: IOPS=0, BW=528KiB/s (541kB/s)(2048KiB/3880msec) clat (msec): min=201, max=241, avg=221.53, stdev=27.80 lat (msec): min=201, max=241, avg=221.54, stdev=27.80 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 203], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 1398, max= 2048, per=32.64%, avg=1723.00, stdev=459.62, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2639KiB/s (2703kB/s)(10.0MiB/3880msec); 0 zone resets clat (msec): min=174, max=655, avg=341.51, stdev=173.67 lat (msec): min=174, max=656, avg=341.60, stdev=173.66 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 234], | 30.00th=[ 249], 40.00th=[ 251], 50.00th=[ 259], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 401], 90.00th=[ 651], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2035, max= 4079, per=49.50%, avg=3657.40, stdev=907.07, samples=5 iops : min= 1, max= 3, avg= 2.60, stdev= 0.89, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=13.77%, ctx=108, 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=150598: Fri Apr 10 21:20:36 2026 read: IOPS=1, BW=1687KiB/s (1727kB/s)(6144KiB/3642msec) clat (msec): min=2, max=316, avg=192.18, stdev=103.50 lat (msec): min=2, max=316, avg=192.18, stdev=103.50 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 213], 50.00th=[ 213], 60.00th=[ 220], | 70.00th=[ 222], 80.00th=[ 222], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 2035, max= 4063, per=51.45%, avg=2715.33, stdev=1167.13, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1687KiB/s (1727kB/s)(6144KiB/3642msec); 0 zone resets clat (msec): min=85, max=909, avg=386.23, stdev=300.12 lat (msec): min=85, max=909, avg=386.30, stdev=300.13 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 418], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1393, max= 2048, per=25.36%, avg=1873.75, stdev=320.72, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 4=8.33%, 100=8.33%, 250=41.67%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=12.39%, ctx=226, 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=150599: Fri Apr 10 21:20:36 2026 read: IOPS=1, BW=1786KiB/s (1829kB/s)(5120KiB/2866msec) clat (msec): min=2, max=387, avg=194.37, stdev=157.31 lat (msec): min=2, max=387, avg=194.37, stdev=157.31 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 67], 40.00th=[ 67], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 275], 80.00th=[ 275], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 4071, max= 4071, per=77.13%, avg=4071.00, stdev= 0.00, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2501KiB/s (2561kB/s)(7168KiB/2866msec); 0 zone resets clat (msec): min=74, max=557, avg=261.35, stdev=164.40 lat (msec): min=74, max=557, avg=261.42, stdev=164.42 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 123], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 351], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1592, max= 6144, per=46.72%, avg=3452.50, stdev=2086.38, samples=4 iops : min= 1, max= 6, avg= 2.75, stdev= 2.36, samples=4 lat (msec) : 4=8.33%, 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.03%, sys=15.85%, ctx=93, 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=5278KiB/s (5405kB/s), 528KiB/s-2886KiB/s (541kB/s-2955kB/s), io=20.0MiB (20.0MB), run=2484-3880msec WRITE: bw=7390KiB/s (7567kB/s), 1687KiB/s-2639KiB/s (1727kB/s-2703kB/s), io=28.0MiB (29.4MB), run=2484-3880msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150600: Fri Apr 10 21:20:37 2026 read: IOPS=1, BW=1733KiB/s (1774kB/s)(7168KiB/4137msec) clat (msec): min=86, max=744, avg=246.69, stdev=228.02 lat (msec): min=86, max=744, avg=246.69, stdev=228.02 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 136], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 144], 60.00th=[ 199], | 70.00th=[ 199], 80.00th=[ 279], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1444, max= 4055, per=51.18%, avg=2380.50, stdev=1148.10, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1238KiB/s (1267kB/s)(5120KiB/4137msec); 0 zone resets clat (msec): min=299, max=649, avg=417.29, stdev=155.73 lat (msec): min=299, max=649, avg=417.37, stdev=155.73 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 309], 40.00th=[ 309], 50.00th=[ 321], 60.00th=[ 321], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1988, max= 4087, per=41.54%, avg=2704.67, stdev=1197.41, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=5.27%, ctx=98, 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=150601: Fri Apr 10 21:20:37 2026 read: IOPS=0, BW=479KiB/s (491kB/s)(2048KiB/4275msec) clat (msec): min=96, max=125, avg=111.11, stdev=20.19 lat (msec): min=96, max=125, avg=111.11, stdev=20.19 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 97], 40.00th=[ 97], 50.00th=[ 97], 60.00th=[ 126], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 126], 95.00th=[ 126], | 99.00th=[ 126], 99.50th=[ 126], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] bw ( KiB/s): min= 1454, max= 2043, per=37.59%, avg=1748.50, stdev=416.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2395KiB/s (2453kB/s)(10.0MiB/4275msec); 0 zone resets clat (msec): min=146, max=924, avg=389.22, stdev=219.90 lat (msec): min=146, max=924, avg=389.30, stdev=219.90 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 207], | 30.00th=[ 228], 40.00th=[ 253], 50.00th=[ 384], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 426], 90.00th=[ 481], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 1988, max= 4079, per=40.10%, avg=2611.14, stdev=1000.17, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 100=8.33%, 250=33.33%, 500=50.00%, 1000=8.33% cpu : usr=0.02%, sys=5.15%, ctx=190, 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=150602: Fri Apr 10 21:20:37 2026 read: IOPS=1, BW=1395KiB/s (1429kB/s)(6144KiB/4403msec) clat (msec): min=76, max=704, avg=243.60, stdev=234.12 lat (msec): min=76, max=704, avg=243.60, stdev=234.12 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 124], | 30.00th=[ 124], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 148], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1988, max= 2043, per=43.60%, avg=2028.00, stdev=22.61, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1395KiB/s (1429kB/s)(6144KiB/4403msec); 0 zone resets clat (msec): min=184, max=745, avg=481.10, stdev=221.56 lat (msec): min=184, max=745, avg=481.22, stdev=221.59 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 625], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 2027, max= 2737, per=33.95%, avg=2210.50, stdev=351.06, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=2.93%, ctx=63, 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=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=150603: Fri Apr 10 21:20:37 2026 read: IOPS=1, BW=1204KiB/s (1233kB/s)(5120KiB/4251msec) clat (msec): min=69, max=333, avg=168.75, stdev=117.03 lat (msec): min=69, max=333, avg=168.75, stdev=117.03 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 81], 40.00th=[ 81], 50.00th=[ 111], 60.00th=[ 111], | 70.00th=[ 251], 80.00th=[ 251], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 2035, max= 4087, per=58.49%, avg=2720.33, stdev=1183.57, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1686KiB/s (1727kB/s)(7168KiB/4251msec); 0 zone resets clat (msec): min=149, max=847, avg=461.20, stdev=254.50 lat (msec): min=150, max=847, avg=461.29, stdev=254.50 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 209], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 502], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 625], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 2027, max= 6107, per=54.68%, avg=3560.00, stdev=1951.41, samples=4 iops : min= 1, max= 5, avg= 2.50, stdev= 1.91, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=16.67%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=2.75%, ctx=83, 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=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=4651KiB/s (4763kB/s), 479KiB/s-1733KiB/s (491kB/s-1774kB/s), io=20.0MiB (20.0MB), run=4137-4403msec WRITE: bw=6512KiB/s (6668kB/s), 1238KiB/s-2395KiB/s (1267kB/s-2453kB/s), io=28.0MiB (29.4MB), run=4137-4403msec 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=150610: Fri Apr 10 21:20:50 2026 read: IOPS=1, BW=4411KiB/s (4516kB/s)(12.0MiB/2786msec) clat (msec): min=418, max=1226, avg=903.82, stdev=428.10 lat (msec): min=418, max=1226, avg=903.82, stdev=428.10 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 1070], 50.00th=[ 1070], 60.00th=[ 1070], | 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= 8192, per=100.00%, 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=66.67% cpu : usr=0.00%, sys=3.66%, ctx=40, 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=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=150611: Fri Apr 10 21:20:50 2026 read: IOPS=0, BW=3670KiB/s (3758kB/s)(4096KiB/1116msec) clat (nsec): min=242550k, max=242550k, avg=242549934.00, stdev= 0.00 lat (nsec): min=242554k, max=242554k, avg=242553784.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 243], 50.00th=[ 243], 60.00th=[ 243], | 70.00th=[ 243], 80.00th=[ 243], 90.00th=[ 243], 95.00th=[ 243], | 99.00th=[ 243], 99.50th=[ 243], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 5801, max= 5801, per=98.66%, avg=5801.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=7341KiB/s (7517kB/s)(8192KiB/1116msec); 0 zone resets clat (msec): min=294, max=549, avg=422.14, stdev=180.72 lat (msec): min=294, max=551, avg=423.05, stdev=181.51 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=8.88%, ctx=51, 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=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=150612: Fri Apr 10 21:20:50 2026 write: IOPS=1, BW=4639KiB/s (4750kB/s)(12.0MiB/2649msec); 0 zone resets clat (msec): min=787, max=1041, avg=872.99, stdev=146.31 lat (msec): min=787, max=1042, avg=873.32, stdev=146.47 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 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= 8159, max= 8192, per=66.10%, avg=8175.50, stdev=23.33, 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=8.57%, ctx=97, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=150613: Fri Apr 10 21:20:50 2026 write: IOPS=1, BW=4957KiB/s (5076kB/s)(12.0MiB/2479msec); 0 zone resets clat (msec): min=357, max=1111, avg=787.80, stdev=387.85 lat (msec): min=358, max=1112, avg=788.45, stdev=388.19 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 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= 8192, max= 8192, per=66.23%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.08%, ctx=42, 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=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=5881KiB/s (6022kB/s), 3670KiB/s-4411KiB/s (3758kB/s-4516kB/s), io=16.0MiB (16.8MB), run=1116-2786msec WRITE: bw=12.1MiB/s (12.7MB/s), 4639KiB/s-7341KiB/s (4750kB/s-7517kB/s), io=32.0MiB (33.6MB), run=1116-2649msec rand-rw: (groupid=0, jobs=1): err= 0: pid=150614: Fri Apr 10 21:20:50 2026 read: IOPS=1, BW=5150KiB/s (5274kB/s)(12.0MiB/2386msec) clat (msec): min=708, max=866, avg=776.77, stdev=81.04 lat (msec): min=708, max=866, avg=776.78, stdev=81.04 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 869], 80.00th=[ 869], 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= 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) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=16.23%, ctx=272, majf=0, minf=7 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=150615: Fri Apr 10 21:20:50 2026 read: IOPS=0, BW=1218KiB/s (1247kB/s)(4096KiB/3364msec) clat (nsec): min=587590k, max=587590k, avg=587590043.00, stdev= 0.00 lat (nsec): min=587593k, max=587593k, avg=587592712.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] 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=2435KiB/s (2494kB/s)(8192KiB/3364msec); 0 zone resets clat (msec): min=1050, max=1584, avg=1317.70, stdev=377.63 lat (msec): min=1051, max=1584, avg=1318.29, stdev=377.05 clat percentiles (msec): | 1.00th=[ 1053], 5.00th=[ 1053], 10.00th=[ 1053], 20.00th=[ 1053], | 30.00th=[ 1053], 40.00th=[ 1053], 50.00th=[ 1053], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8192, max= 8192, per=84.11%, 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%, 2000=66.67% cpu : usr=0.03%, sys=2.44%, ctx=106, 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=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=150616: Fri Apr 10 21:20:50 2026 write: IOPS=0, BW=3707KiB/s (3796kB/s)(12.0MiB/3315msec); 0 zone resets clat (msec): min=347, max=1419, avg=1052.44, stdev=610.94 lat (msec): min=347, max=1419, avg=1052.94, stdev=610.78 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 1385], 50.00th=[ 1385], 60.00th=[ 1385], | 70.00th=[ 1418], 80.00th=[ 1418], 90.00th=[ 1418], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 8159, max= 8192, per=83.94%, avg=8175.50, stdev=23.33, 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=3.02%, ctx=44, majf=0, minf=7 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=150617: Fri Apr 10 21:20:50 2026 write: IOPS=1, BW=4192KiB/s (4293kB/s)(12.0MiB/2931msec); 0 zone resets clat (msec): min=352, max=1348, avg=959.64, stdev=532.83 lat (msec): min=352, max=1348, avg=960.65, stdev=533.25 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 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= 8192, max= 8192, per=84.11%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=4.37%, ctx=52, 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 Run status group 0 (all jobs): READ: bw=4870KiB/s (4987kB/s), 1218KiB/s-5150KiB/s (1247kB/s-5274kB/s), io=16.0MiB (16.8MB), run=2386-3364msec WRITE: bw=9741KiB/s (9975kB/s), 2435KiB/s-4192KiB/s (2494kB/s-4293kB/s), io=32.0MiB (33.6MB), run=2931-3364msec