== sanity test 398b: DIO and buffer IO race ============== 15:39:37 (1789501177) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.04473 s, 10.0 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=145410: Tue Sep 15 15:41:43 2026 read: IOPS=13, BW=55.3KiB/s (56.6kB/s)(5992KiB/108341msec) clat (usec): min=34, max=871816, avg=33595.31, stdev=33352.84 lat (usec): min=34, max=871818, avg=33598.66, stdev=33351.80 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 56], 10.00th=[ 72], 20.00th=[ 14484], | 30.00th=[ 19268], 40.00th=[ 23462], 50.00th=[ 27657], 60.00th=[ 33817], | 70.00th=[ 41681], 80.00th=[ 51119], 90.00th=[ 67634], 95.00th=[ 82314], | 99.00th=[106431], 99.50th=[121111], 99.90th=[196084], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 6, max= 135, per=25.18%, avg=55.14, stdev=23.65, samples=213 iops : min= 1, max= 33, avg=13.15, stdev= 5.97, samples=213 write: IOPS=14, BW=58.1KiB/s (59.5kB/s)(6296KiB/108341msec); 0 zone resets clat (usec): min=865, max=405054, avg=36593.88, stdev=38155.09 lat (usec): min=866, max=405055, avg=36601.17, stdev=38152.76 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1598], 20.00th=[ 3752], | 30.00th=[ 7635], 40.00th=[ 16712], 50.00th=[ 27132], 60.00th=[ 38011], | 70.00th=[ 49021], 80.00th=[ 62653], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[149947], 99.50th=[170918], 99.90th=[362808], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 8, max= 142, per=25.28%, avg=58.14, stdev=21.68, samples=212 iops : min= 2, max= 35, avg=13.92, stdev= 5.45, samples=212 lat (usec) : 50=0.98%, 100=4.85%, 250=0.55%, 500=0.26%, 750=0.07% lat (usec) : 1000=0.10% lat (msec) : 2=6.54%, 4=4.20%, 10=6.93%, 20=13.31%, 50=37.27% lat (msec) : 100=20.41%, 250=4.39%, 500=0.10%, 1000=0.03% cpu : usr=0.08%, sys=5.91%, ctx=6472, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145411: Tue Sep 15 15:41:43 2026 read: IOPS=13, BW=55.4KiB/s (56.7kB/s)(5940KiB/107227msec) clat (usec): min=30, max=917044, avg=33587.81, stdev=34718.29 lat (usec): min=31, max=917045, avg=33589.49, stdev=34718.17 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 73], 20.00th=[ 14484], | 30.00th=[ 19268], 40.00th=[ 23462], 50.00th=[ 27657], 60.00th=[ 33817], | 70.00th=[ 40633], 80.00th=[ 50594], 90.00th=[ 65274], 95.00th=[ 80217], | 99.00th=[113771], 99.50th=[139461], 99.90th=[223347], 99.95th=[918553], | 99.99th=[918553] bw ( KiB/s): min= 7, max= 123, per=25.43%, avg=55.69, stdev=22.94, samples=209 iops : min= 1, max= 30, avg=13.30, stdev= 5.76, samples=209 write: IOPS=14, BW=59.2KiB/s (60.6kB/s)(6348KiB/107227msec); 0 zone resets clat (usec): min=782, max=364133, avg=35909.00, stdev=37320.67 lat (usec): min=785, max=364135, avg=35914.05, stdev=37319.93 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1156], 10.00th=[ 1450], 20.00th=[ 3720], | 30.00th=[ 7439], 40.00th=[ 15926], 50.00th=[ 26084], 60.00th=[ 36439], | 70.00th=[ 46924], 80.00th=[ 62653], 90.00th=[ 85459], 95.00th=[109577], | 99.00th=[154141], 99.50th=[185598], 99.90th=[299893], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 133, per=25.78%, avg=59.29, stdev=23.23, samples=210 iops : min= 1, max= 33, avg=14.21, stdev= 5.87, samples=210 lat (usec) : 50=0.94%, 100=4.85%, 250=0.59%, 750=0.07%, 1000=0.10% lat (msec) : 2=6.93%, 4=4.17%, 10=6.77%, 20=13.25%, 50=38.12% lat (msec) : 100=19.69%, 250=4.43%, 500=0.07%, 1000=0.03% cpu : usr=0.06%, sys=6.12%, ctx=6430, 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=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=145412: Tue Sep 15 15:41:43 2026 read: IOPS=13, BW=55.2KiB/s (56.6kB/s)(6028KiB/109146msec) clat (usec): min=22, max=186263, avg=32905.04, stdev=25784.37 lat (usec): min=23, max=186264, avg=32908.89, stdev=25784.59 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 54], 10.00th=[ 69], 20.00th=[ 13566], | 30.00th=[ 18744], 40.00th=[ 22938], 50.00th=[ 27132], 60.00th=[ 33162], | 70.00th=[ 40633], 80.00th=[ 53216], 90.00th=[ 69731], 95.00th=[ 81265], | 99.00th=[110625], 99.50th=[119014], 99.90th=[156238], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 15, max= 119, per=25.36%, avg=55.54, stdev=23.06, samples=213 iops : min= 3, max= 29, avg=13.27, stdev= 5.79, samples=213 write: IOPS=14, BW=57.4KiB/s (58.7kB/s)(6260KiB/109146msec); 0 zone resets clat (usec): min=917, max=1099.2k, avg=37830.32, stdev=45331.40 lat (usec): min=919, max=1099.2k, avg=37832.28, stdev=45331.57 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1467], | 20.00th=[ 3589], 30.00th=[ 7504], 40.00th=[ 18220], | 50.00th=[ 28181], 60.00th=[ 38536], 70.00th=[ 50594], | 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[ 108528], | 99.00th=[ 160433], 99.50th=[ 170918], 99.90th=[ 208667], | 99.95th=[1098908], 99.99th=[1098908] bw ( KiB/s): min= 15, max= 151, per=24.97%, avg=57.43, stdev=23.27, samples=214 iops : min= 3, max= 37, avg=13.73, stdev= 5.89, samples=214 lat (usec) : 50=1.27%, 100=4.98%, 250=0.62%, 500=0.16%, 1000=0.13% lat (msec) : 2=6.71%, 4=4.43%, 10=5.99%, 20=13.44%, 50=35.94% lat (msec) : 100=22.14%, 250=4.17%, 2000=0.03% cpu : usr=0.08%, sys=6.08%, ctx=6518, 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=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=145413: Tue Sep 15 15:41:43 2026 read: IOPS=14, BW=56.0KiB/s (57.4kB/s)(6052KiB/108010msec) clat (usec): min=29, max=907893, avg=33921.53, stdev=34633.19 lat (usec): min=29, max=907894, avg=33928.01, stdev=34633.00 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 56], 10.00th=[ 80], 20.00th=[ 15270], | 30.00th=[ 19530], 40.00th=[ 23987], 50.00th=[ 28443], 60.00th=[ 34341], | 70.00th=[ 41157], 80.00th=[ 51119], 90.00th=[ 64750], 95.00th=[ 79168], | 99.00th=[117965], 99.50th=[143655], 99.90th=[254804], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 6, max= 119, per=25.46%, avg=55.76, stdev=22.99, samples=212 iops : min= 1, max= 29, avg=13.33, stdev= 5.77, samples=212 write: IOPS=14, BW=57.7KiB/s (59.1kB/s)(6236KiB/108010msec); 0 zone resets clat (usec): min=910, max=344504, avg=36149.82, stdev=37461.83 lat (usec): min=911, max=344505, avg=36155.49, stdev=37461.99 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1172], 10.00th=[ 1483], 20.00th=[ 3556], | 30.00th=[ 7635], 40.00th=[ 16712], 50.00th=[ 25822], 60.00th=[ 35914], | 70.00th=[ 47449], 80.00th=[ 63177], 90.00th=[ 85459], 95.00th=[108528], | 99.00th=[158335], 99.50th=[173016], 99.90th=[244319], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 15, max= 135, per=24.95%, avg=57.38, stdev=21.95, samples=212 iops : min= 3, max= 33, avg=13.73, stdev= 5.51, samples=212 lat (usec) : 50=1.14%, 100=4.56%, 250=0.55%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.13% lat (msec) : 2=6.80%, 4=3.84%, 10=6.77%, 20=13.51%, 50=37.99% lat (msec) : 100=20.28%, 250=4.20%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=6.06%, ctx=6441, 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=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=220KiB/s (225kB/s), 55.2KiB/s-56.0KiB/s (56.6kB/s-57.4kB/s), io=23.4MiB (24.6MB), run=107227-109146msec WRITE: bw=230KiB/s (236kB/s), 57.4KiB/s-59.2KiB/s (58.7kB/s-60.6kB/s), io=24.6MiB (25.7MB), run=107227-109146msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145406: Tue Sep 15 15:44:10 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(5992KiB/254622msec) clat (msec): min=4, max=887, avg=31.39, stdev=36.71 lat (msec): min=4, max=887, avg=31.39, stdev=36.71 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 43], 90.00th=[ 65], 95.00th=[ 87], | 99.00th=[ 138], 99.50th=[ 174], 99.90th=[ 464], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 95, per=27.97%, avg=26.01, stdev=16.39, samples=447 iops : min= 1, max= 23, avg= 5.92, stdev= 4.14, samples=447 write: IOPS=6, BW=24.7KiB/s (25.3kB/s)(6296KiB/254622msec); 0 zone resets clat (msec): min=27, max=393, avg=131.66, stdev=53.82 lat (msec): min=27, max=393, avg=131.67, stdev=53.82 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 86], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 174], 90.00th=[ 207], 95.00th=[ 234], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 56, per=24.78%, avg=24.29, stdev= 9.82, samples=501 iops : min= 1, max= 14, avg= 5.48, stdev= 2.52, samples=501 lat (msec) : 10=4.49%, 20=17.12%, 50=20.15%, 100=22.17%, 250=34.34% lat (msec) : 500=1.69%, 1000=0.03% cpu : usr=0.04%, sys=1.15%, ctx=5267, 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=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=145407: Tue Sep 15 15:44:10 2026 read: IOPS=5, BW=23.2KiB/s (23.7kB/s)(5940KiB/256313msec) clat (msec): min=5, max=898, avg=31.76, stdev=37.44 lat (msec): min=5, max=898, avg=31.77, stdev=37.44 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 43], 90.00th=[ 67], 95.00th=[ 88], | 99.00th=[ 134], 99.50th=[ 176], 99.90th=[ 414], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 95, per=27.51%, avg=25.59, stdev=16.77, samples=449 iops : min= 1, max= 23, avg= 5.81, stdev= 4.23, samples=449 write: IOPS=6, BW=24.8KiB/s (25.4kB/s)(6348KiB/256313msec); 0 zone resets clat (msec): min=29, max=386, avg=131.54, stdev=54.53 lat (msec): min=29, max=386, avg=131.54, stdev=54.53 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 97], 40.00th=[ 108], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 153], 80.00th=[ 171], 90.00th=[ 207], 95.00th=[ 239], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 372], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 7, max= 55, per=24.73%, avg=24.23, stdev= 9.54, samples=505 iops : min= 1, max= 13, avg= 5.46, stdev= 2.45, samples=505 lat (msec) : 10=3.97%, 20=18.33%, 50=19.47%, 100=21.61%, 250=34.70% lat (msec) : 500=1.89%, 1000=0.03% cpu : usr=0.04%, sys=1.10%, ctx=5081, 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=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=145408: Tue Sep 15 15:44:10 2026 read: IOPS=5, BW=23.7KiB/s (24.3kB/s)(6028KiB/254382msec) clat (msec): min=5, max=407, avg=32.53, stdev=32.86 lat (msec): min=5, max=407, avg=32.53, stdev=32.86 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 70], 95.00th=[ 92], | 99.00th=[ 142], 99.50th=[ 199], 99.90th=[ 359], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 95, per=27.32%, avg=25.40, stdev=17.39, samples=459 iops : min= 1, max= 23, avg= 5.76, stdev= 4.38, samples=459 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6260KiB/254382msec); 0 zone resets clat (msec): min=37, max=1098, avg=131.00, stdev=59.42 lat (msec): min=37, max=1098, avg=131.00, stdev=59.42 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 133], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 207], 95.00th=[ 236], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 368], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 55, per=24.70%, avg=24.21, stdev= 9.97, samples=499 iops : min= 1, max= 13, avg= 5.46, stdev= 2.56, samples=499 lat (msec) : 10=4.10%, 20=18.42%, 50=18.85%, 100=22.23%, 250=34.44% lat (msec) : 500=1.92%, 2000=0.03% cpu : usr=0.04%, sys=1.12%, ctx=5096, 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=145409: Tue Sep 15 15:44:10 2026 read: IOPS=5, BW=23.8KiB/s (24.4kB/s)(6052KiB/254428msec) clat (msec): min=5, max=451, avg=31.80, stdev=30.71 lat (msec): min=5, max=451, avg=31.80, stdev=30.71 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 68], 95.00th=[ 90], | 99.00th=[ 136], 99.50th=[ 165], 99.90th=[ 368], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7, max= 95, per=27.90%, avg=25.95, stdev=17.67, samples=452 iops : min= 1, max= 23, avg= 5.90, stdev= 4.46, samples=452 write: IOPS=6, BW=24.5KiB/s (25.1kB/s)(6236KiB/254428msec); 0 zone resets clat (msec): min=35, max=1007, avg=132.10, stdev=58.54 lat (msec): min=35, max=1007, avg=132.11, stdev=58.54 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 89], | 30.00th=[ 100], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 134], | 70.00th=[ 148], 80.00th=[ 171], 90.00th=[ 207], 95.00th=[ 236], | 99.00th=[ 321], 99.50th=[ 338], 99.90th=[ 472], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 55, per=24.50%, avg=24.01, stdev= 9.61, samples=501 iops : min= 1, max= 13, avg= 5.41, stdev= 2.48, samples=501 lat (msec) : 10=4.39%, 20=17.32%, 50=19.76%, 100=21.48%, 250=35.25% lat (msec) : 500=1.76%, 2000=0.03% cpu : usr=0.04%, sys=1.17%, ctx=5149, 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=93.7KiB/s (95.9kB/s), 23.2KiB/s-23.8KiB/s (23.7kB/s-24.4kB/s), io=23.4MiB (24.6MB), run=254382-256313msec WRITE: bw=98.1KiB/s (100kB/s), 24.5KiB/s-24.8KiB/s (25.1kB/s-25.4kB/s), io=24.6MiB (25.7MB), run=254382-256313msec 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=145468: Tue Sep 15 15:44:45 2026 read: IOPS=14, BW=235KiB/s (241kB/s)(5920KiB/25149msec) clat (usec): min=38, max=214095, avg=34301.39, stdev=27159.62 lat (usec): min=38, max=214096, avg=34308.87, stdev=27162.84 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 11600], | 30.00th=[ 21365], 40.00th=[ 26870], 50.00th=[ 32900], 60.00th=[ 37487], | 70.00th=[ 43254], 80.00th=[ 51119], 90.00th=[ 64226], 95.00th=[ 79168], | 99.00th=[135267], 99.50th=[137364], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 63, max= 416, per=25.06%, avg=232.35, stdev=84.58, samples=49 iops : min= 3, max= 26, avg=13.80, stdev= 5.37, samples=49 write: IOPS=15, BW=253KiB/s (259kB/s)(6368KiB/25149msec); 0 zone resets clat (usec): min=1421, max=413851, avg=31100.47, stdev=40128.96 lat (usec): min=1422, max=413851, avg=31102.43, stdev=40128.93 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1745], 10.00th=[ 2278], 20.00th=[ 4490], | 30.00th=[ 7767], 40.00th=[ 10683], 50.00th=[ 17695], 60.00th=[ 26346], | 70.00th=[ 36963], 80.00th=[ 51119], 90.00th=[ 73925], 95.00th=[ 99091], | 99.00th=[183501], 99.50th=[320865], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 63, max= 479, per=25.90%, avg=252.51, stdev=89.12, samples=49 iops : min= 3, max= 29, avg=15.08, stdev= 5.58, samples=49 lat (usec) : 50=0.91%, 100=7.03%, 250=1.04%, 500=0.13% lat (msec) : 2=4.69%, 4=4.69%, 10=10.94%, 20=11.20%, 50=38.28% lat (msec) : 100=17.71%, 250=3.12%, 500=0.26% cpu : usr=0.07%, sys=6.17%, ctx=1468, 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=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=145469: Tue Sep 15 15:44:45 2026 read: IOPS=13, BW=222KiB/s (228kB/s)(5744KiB/25834msec) clat (usec): min=37, max=175464, avg=35330.08, stdev=27368.48 lat (usec): min=37, max=175465, avg=35334.63, stdev=27364.05 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 13435], | 30.00th=[ 21890], 40.00th=[ 26870], 50.00th=[ 32900], 60.00th=[ 38011], | 70.00th=[ 46400], 80.00th=[ 52691], 90.00th=[ 66323], 95.00th=[ 86508], | 99.00th=[125305], 99.50th=[164627], 99.90th=[175113], 99.95th=[175113], | 99.99th=[175113] bw ( KiB/s): min= 26, max= 415, per=24.35%, avg=225.69, stdev=88.96, samples=49 iops : min= 1, max= 25, avg=13.39, stdev= 5.59, samples=49 write: IOPS=15, BW=253KiB/s (259kB/s)(6544KiB/25834msec); 0 zone resets clat (usec): min=1421, max=302475, avg=31992.18, stdev=41561.46 lat (usec): min=1423, max=302477, avg=32005.33, stdev=41557.80 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1680], 10.00th=[ 2212], 20.00th=[ 4080], | 30.00th=[ 6194], 40.00th=[ 9896], 50.00th=[ 16712], 60.00th=[ 26608], | 70.00th=[ 39060], 80.00th=[ 52167], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[185598], 99.50th=[270533], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 31, max= 632, per=25.51%, avg=248.72, stdev=113.64, samples=50 iops : min= 1, max= 39, avg=14.82, stdev= 7.18, samples=50 lat (usec) : 50=0.78%, 100=6.38%, 250=0.78%, 500=0.39% lat (msec) : 2=4.82%, 4=5.73%, 10=11.33%, 20=10.81%, 50=36.72% lat (msec) : 100=18.62%, 250=3.26%, 500=0.39% cpu : usr=0.08%, sys=6.27%, ctx=1441, 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=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=145470: Tue Sep 15 15:44:45 2026 read: IOPS=15, BW=251KiB/s (257kB/s)(6256KiB/24926msec) clat (usec): min=38, max=366732, avg=35590.60, stdev=31928.58 lat (usec): min=38, max=366732, avg=35595.15, stdev=31924.88 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 16057], | 30.00th=[ 21365], 40.00th=[ 27919], 50.00th=[ 32113], 60.00th=[ 38011], | 70.00th=[ 44827], 80.00th=[ 53740], 90.00th=[ 65274], 95.00th=[ 74974], | 99.00th=[108528], 99.50th=[299893], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 63, max= 442, per=27.14%, avg=251.63, stdev=82.97, samples=49 iops : min= 3, max= 27, avg=15.02, stdev= 5.30, samples=49 write: IOPS=15, BW=242KiB/s (248kB/s)(6032KiB/24926msec); 0 zone resets clat (usec): min=1398, max=160336, avg=29068.33, stdev=30266.31 lat (usec): min=1400, max=160339, avg=29070.24, stdev=30266.27 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1663], 10.00th=[ 2147], 20.00th=[ 4015], | 30.00th=[ 6849], 40.00th=[ 11338], 50.00th=[ 18220], 60.00th=[ 28181], | 70.00th=[ 36963], 80.00th=[ 47973], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[135267], 99.50th=[141558], 99.90th=[160433], 99.95th=[160433], | 99.99th=[160433] bw ( KiB/s): min= 63, max= 448, per=24.80%, avg=241.80, stdev=89.41, samples=49 iops : min= 3, max= 28, avg=14.41, stdev= 5.72, samples=49 lat (usec) : 50=0.52%, 100=7.42%, 250=0.39%, 500=0.13% lat (msec) : 2=4.30%, 4=5.47%, 10=8.33%, 20=12.37%, 50=39.58% lat (msec) : 100=18.88%, 250=2.34%, 500=0.26% cpu : usr=0.07%, sys=6.56%, ctx=1568, 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=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=145471: Tue Sep 15 15:44:45 2026 read: IOPS=15, BW=244KiB/s (250kB/s)(6032KiB/24734msec) clat (usec): min=31, max=293325, avg=35606.98, stdev=30252.90 lat (usec): min=31, max=293326, avg=35607.99, stdev=30252.90 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 61], 20.00th=[ 570], | 30.00th=[ 21890], 40.00th=[ 27132], 50.00th=[ 32637], 60.00th=[ 39584], | 70.00th=[ 45876], 80.00th=[ 53740], 90.00th=[ 69731], 95.00th=[ 82314], | 99.00th=[137364], 99.50th=[152044], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 30, max= 460, per=26.18%, avg=242.73, stdev=96.83, samples=48 iops : min= 1, max= 28, avg=14.44, stdev= 6.12, samples=48 write: IOPS=15, BW=253KiB/s (259kB/s)(6256KiB/24734msec); 0 zone resets clat (usec): min=1411, max=225207, avg=28820.96, stdev=31481.78 lat (usec): min=1413, max=225210, avg=28826.51, stdev=31483.31 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1680], 10.00th=[ 2245], 20.00th=[ 4228], | 30.00th=[ 6980], 40.00th=[ 10028], 50.00th=[ 16319], 60.00th=[ 25822], | 70.00th=[ 39584], 80.00th=[ 51119], 90.00th=[ 71828], 95.00th=[ 83362], | 99.00th=[145753], 99.50th=[187696], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 95, max= 542, per=25.78%, avg=251.33, stdev=104.03, samples=48 iops : min= 5, max= 33, avg=15.00, stdev= 6.48, samples=48 lat (usec) : 50=1.04%, 100=7.81%, 250=0.65%, 500=0.26%, 750=0.13% lat (msec) : 2=4.69%, 4=5.47%, 10=10.42%, 20=10.03%, 50=36.85% lat (msec) : 100=19.92%, 250=2.60%, 500=0.13% cpu : usr=0.07%, sys=6.17%, ctx=1432, 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=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=927KiB/s (949kB/s), 222KiB/s-251KiB/s (228kB/s-257kB/s), io=23.4MiB (24.5MB), run=24734-25834msec WRITE: bw=975KiB/s (999kB/s), 242KiB/s-253KiB/s (248kB/s-259kB/s), io=24.6MiB (25.8MB), run=24734-25834msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145463: Tue Sep 15 15:45:22 2026 read: IOPS=5, BW=94.4KiB/s (96.6kB/s)(5920KiB/62731msec) clat (msec): min=6, max=352, avg=37.36, stdev=40.02 lat (msec): min=6, max=352, avg=37.36, stdev=40.02 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 47], 90.00th=[ 74], 95.00th=[ 122], | 99.00th=[ 220], 99.50th=[ 271], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 31, max= 414, per=26.53%, avg=101.06, stdev=62.96, samples=115 iops : min= 1, max= 25, avg= 5.54, stdev= 3.92, samples=115 write: IOPS=6, BW=102KiB/s (104kB/s)(6368KiB/62731msec); 0 zone resets clat (msec): min=46, max=440, avg=122.69, stdev=52.87 lat (msec): min=46, max=440, avg=122.70, stdev=52.87 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 72], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 103], 50.00th=[ 110], 60.00th=[ 121], | 70.00th=[ 136], 80.00th=[ 153], 90.00th=[ 194], 95.00th=[ 224], | 99.00th=[ 313], 99.50th=[ 363], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 31, max= 191, per=25.11%, avg=100.69, stdev=42.39, samples=124 iops : min= 1, max= 11, avg= 5.51, stdev= 2.74, samples=124 lat (msec) : 10=1.43%, 20=15.76%, 50=22.40%, 100=25.52%, 250=33.07% lat (msec) : 500=1.82% cpu : usr=0.04%, sys=1.40%, ctx=1393, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145464: Tue Sep 15 15:45:22 2026 read: IOPS=5, BW=92.4KiB/s (94.6kB/s)(5744KiB/62171msec) clat (msec): min=6, max=302, avg=34.96, stdev=33.01 lat (msec): min=6, max=302, avg=34.96, stdev=33.01 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 47], 90.00th=[ 72], 95.00th=[ 109], | 99.00th=[ 159], 99.50th=[ 201], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 27, max= 318, per=27.34%, avg=104.15, stdev=64.68, samples=109 iops : min= 1, max= 19, avg= 5.73, stdev= 4.12, samples=109 write: IOPS=6, BW=105KiB/s (108kB/s)(6544KiB/62171msec); 0 zone resets clat (msec): min=41, max=463, avg=120.97, stdev=56.80 lat (msec): min=41, max=463, avg=120.98, stdev=56.80 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 89], 40.00th=[ 100], 50.00th=[ 110], 60.00th=[ 120], | 70.00th=[ 132], 80.00th=[ 155], 90.00th=[ 184], 95.00th=[ 234], | 99.00th=[ 309], 99.50th=[ 372], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 31, max= 191, per=26.15%, avg=104.86, stdev=41.63, samples=123 iops : min= 1, max= 11, avg= 5.77, stdev= 2.66, samples=123 lat (msec) : 10=1.82%, 20=16.41%, 50=21.61%, 100=26.30%, 250=31.38% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.41%, ctx=1416, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145465: Tue Sep 15 15:45:22 2026 read: IOPS=6, BW=102KiB/s (104kB/s)(6256KiB/61551msec) clat (msec): min=6, max=212, avg=34.73, stdev=30.46 lat (msec): min=6, max=212, avg=34.74, stdev=30.46 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 70], 95.00th=[ 96], | 99.00th=[ 178], 99.50th=[ 207], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 31, max= 320, per=28.72%, avg=109.41, stdev=70.58, samples=113 iops : min= 1, max= 20, avg= 6.07, stdev= 4.48, samples=113 write: IOPS=6, BW=98.0KiB/s (100kB/s)(6032KiB/61551msec); 0 zone resets clat (msec): min=44, max=451, avg=126.80, stdev=58.04 lat (msec): min=44, max=451, avg=126.81, stdev=58.04 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 93], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 125], | 70.00th=[ 140], 80.00th=[ 161], 90.00th=[ 203], 95.00th=[ 239], | 99.00th=[ 321], 99.50th=[ 426], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 31, max= 192, per=24.35%, avg=97.65, stdev=40.21, samples=121 iops : min= 1, max= 12, avg= 5.32, stdev= 2.58, samples=121 lat (msec) : 10=3.12%, 20=15.36%, 50=23.70%, 100=25.65%, 250=30.34% lat (msec) : 500=1.82% cpu : usr=0.05%, sys=1.42%, ctx=1432, 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=145466: Tue Sep 15 15:45:22 2026 read: IOPS=6, BW=96.4KiB/s (98.7kB/s)(6032KiB/62582msec) clat (msec): min=6, max=235, avg=34.62, stdev=28.48 lat (msec): min=6, max=235, avg=34.62, stdev=28.48 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 71], 95.00th=[ 94], | 99.00th=[ 157], 99.50th=[ 180], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 31, max= 318, per=27.64%, avg=105.29, stdev=68.54, samples=113 iops : min= 1, max= 19, avg= 5.81, stdev= 4.33, samples=113 write: IOPS=6, BW=99.0KiB/s (102kB/s)(6256KiB/62582msec); 0 zone resets clat (msec): min=47, max=445, avg=126.33, stdev=57.02 lat (msec): min=47, max=445, avg=126.33, stdev=57.02 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 84], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 114], 60.00th=[ 127], | 70.00th=[ 142], 80.00th=[ 159], 90.00th=[ 194], 95.00th=[ 232], | 99.00th=[ 363], 99.50th=[ 409], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 31, max= 192, per=24.85%, avg=99.65, stdev=41.43, samples=124 iops : min= 1, max= 12, avg= 5.44, stdev= 2.68, samples=124 lat (msec) : 10=1.82%, 20=15.89%, 50=22.40%, 100=26.69%, 250=31.64% lat (msec) : 500=1.56% cpu : usr=0.03%, sys=1.24%, ctx=1360, 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=382KiB/s (391kB/s), 92.4KiB/s-102KiB/s (94.6kB/s-104kB/s), io=23.4MiB (24.5MB), run=61551-62731msec WRITE: bw=402KiB/s (411kB/s), 98.0KiB/s-105KiB/s (100kB/s-108kB/s), io=24.6MiB (25.8MB), run=61551-62731msec 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=145493: Tue Sep 15 15:45:44 2026 read: IOPS=0, BW=836KiB/s (856kB/s)(7168KiB/8574msec) clat (usec): min=602, max=3169.2k, avg=945165.74, stdev=1413369.20 lat (usec): min=603, max=3169.2k, avg=945166.91, stdev=1413369.49 clat percentiles (usec): | 1.00th=[ 603], 5.00th=[ 603], 10.00th=[ 603], | 20.00th=[ 16319], 30.00th=[ 122160], 40.00th=[ 122160], | 50.00th=[ 183501], 60.00th=[ 283116], 70.00th=[ 283116], | 80.00th=[2835350], 90.00th=[3170894], 95.00th=[3170894], | 99.00th=[3170894], 99.50th=[3170894], 99.90th=[3170894], | 99.95th=[3170894], 99.99th=[3170894] bw ( KiB/s): min= 1906, max= 4096, per=100.00%, avg=2413.40, stdev=942.00, samples=5 iops : min= 1, max= 4, avg= 1.60, stdev= 1.34, samples=5 write: IOPS=0, BW=597KiB/s (611kB/s)(5120KiB/8574msec); 0 zone resets clat (msec): min=177, max=530, avg=358.41, stdev=137.42 lat (msec): min=177, max=530, avg=358.48, stdev=137.41 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 1906, max= 4087, per=86.41%, avg=2666.67, stdev=1231.08, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 20=8.33%, 250=25.00%, 500=33.33%, 750=8.33%, >=2000=16.67% cpu : usr=0.01%, sys=7.57%, ctx=1028, 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=145494: Tue Sep 15 15:45:44 2026 read: IOPS=0, BW=222KiB/s (227kB/s)(2048KiB/9244msec) clat (msec): min=235, max=336, avg=286.27, stdev=71.49 lat (msec): min=235, max=336, avg=286.27, stdev=71.49 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1831, max= 2043, per=87.89%, avg=1937.00, stdev=149.91, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1108KiB/s (1134kB/s)(10.0MiB/9244msec); 0 zone resets clat (msec): min=76, max=3243, avg=853.40, stdev=1188.80 lat (msec): min=76, max=3243, avg=853.50, stdev=1188.81 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 97], | 30.00th=[ 107], 40.00th=[ 174], 50.00th=[ 288], 60.00th=[ 405], | 70.00th=[ 426], 80.00th=[ 835], 90.00th=[ 2869], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] bw ( KiB/s): min= 2007, max= 4096, per=100.00%, avg=3672.80, stdev=931.22, samples=5 iops : min= 1, max= 4, avg= 2.80, stdev= 1.10, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=33.33%, 1000=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=7.02%, ctx=215, 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=145495: Tue Sep 15 15:45:44 2026 read: IOPS=0, BW=719KiB/s (736kB/s)(6144KiB/8549msec) clat (usec): min=478, max=278390, avg=179016.48, stdev=138492.04 lat (usec): min=480, max=278392, avg=179017.50, stdev=138491.96 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 660], | 30.00th=[ 660], 40.00th=[252707], 50.00th=[252707], 60.00th=[270533], | 70.00th=[270533], 80.00th=[270533], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 2007, max= 6144, per=100.00%, avg=3398.00, stdev=2378.17, samples=3 iops : min= 1, max= 6, avg= 2.67, stdev= 2.89, samples=3 write: IOPS=0, BW=719KiB/s (736kB/s)(6144KiB/8549msec); 0 zone resets clat (msec): min=137, max=6171, avg=1230.17, stdev=2421.49 lat (msec): min=151, max=6172, avg=1232.57, stdev=2420.41 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 284], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 6141], 95.00th=[ 6141], | 99.00th=[ 6141], 99.50th=[ 6141], 99.90th=[ 6141], 99.95th=[ 6141], | 99.99th=[ 6141] bw ( KiB/s): min= 1906, max= 3180, per=74.34%, avg=2294.25, stdev=594.15, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=16.67%, 500=58.33%, >=2000=8.33% cpu : usr=0.00%, sys=6.06%, ctx=139, 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=145496: Tue Sep 15 15:45:44 2026 read: IOPS=0, BW=551KiB/s (564kB/s)(5120KiB/9288msec) clat (usec): min=501, max=191016, avg=76834.48, stdev=77167.61 lat (usec): min=503, max=191016, avg=76835.37, stdev=77167.45 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 13173], 40.00th=[ 13173], 50.00th=[ 72877], 60.00th=[ 72877], | 70.00th=[106431], 80.00th=[106431], 90.00th=[191890], 95.00th=[191890], | 99.00th=[191890], 99.50th=[191890], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 2043, max= 6131, per=100.00%, avg=4087.00, stdev=2890.65, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=0, BW=772KiB/s (790kB/s)(7168KiB/9288msec); 0 zone resets clat (msec): min=72, max=6286, avg=1197.31, stdev=2256.32 lat (msec): min=72, max=6286, avg=1197.55, stdev=2256.29 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 130], | 30.00th=[ 268], 40.00th=[ 268], 50.00th=[ 405], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 785], 90.00th=[ 6275], 95.00th=[ 6275], | 99.00th=[ 6275], 99.50th=[ 6275], 99.90th=[ 6275], 99.95th=[ 6275], | 99.99th=[ 6275] bw ( KiB/s): min= 2007, max= 4087, per=79.22%, avg=2444.60, stdev=918.26, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 20=8.33%, 100=16.67%, 250=25.00%, 500=25.00%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=5.35%, ctx=140, 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=2205KiB/s (2258kB/s), 222KiB/s-836KiB/s (227kB/s-856kB/s), io=20.0MiB (20.0MB), run=8549-9288msec WRITE: bw=3087KiB/s (3161kB/s), 597KiB/s-1108KiB/s (611kB/s-1134kB/s), io=28.0MiB (29.4MB), run=8549-9288msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145497: Tue Sep 15 15:45:45 2026 read: IOPS=0, BW=838KiB/s (858kB/s)(7168KiB/8556msec) clat (msec): min=137, max=2940, avg=987.30, stdev=1293.63 lat (msec): min=137, max=2940, avg=987.30, stdev=1293.63 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 197], | 30.00th=[ 226], 40.00th=[ 226], 50.00th=[ 279], 60.00th=[ 313], | 70.00th=[ 313], 80.00th=[ 2802], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 1643, max= 2043, per=98.99%, avg=1969.00, stdev=159.91, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=0, BW=598KiB/s (613kB/s)(5120KiB/8556msec); 0 zone resets clat (msec): min=177, max=515, avg=316.49, stdev=130.55 lat (msec): min=177, max=515, avg=316.57, stdev=130.55 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 230], 40.00th=[ 230], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 2023, max= 4071, per=97.43%, avg=2712.33, stdev=1176.68, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, >=2000=16.67% cpu : usr=0.00%, sys=1.65%, ctx=66, 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=145498: Tue Sep 15 15:45:45 2026 read: IOPS=0, BW=199KiB/s (204kB/s)(2048KiB/10296msec) clat (usec): min=286054, max=286107, avg=286081.22, stdev=37.11 lat (usec): min=286056, max=286110, avg=286083.26, stdev=38.52 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 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= 1759, max= 2003, per=94.57%, avg=1881.00, stdev=172.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=0, BW=995KiB/s (1018kB/s)(10.0MiB/10296msec); 0 zone resets clat (msec): min=80, max=5925, avg=943.82, stdev=1767.03 lat (msec): min=80, max=5926, avg=943.90, stdev=1767.01 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 213], | 30.00th=[ 220], 40.00th=[ 338], 50.00th=[ 342], 60.00th=[ 422], | 70.00th=[ 460], 80.00th=[ 460], 90.00th=[ 978], 95.00th=[ 5940], | 99.00th=[ 5940], 99.50th=[ 5940], 99.90th=[ 5940], 99.95th=[ 5940], | 99.99th=[ 5940] bw ( KiB/s): min= 2027, max= 4096, per=97.75%, avg=2721.33, stdev=1064.83, samples=6 iops : min= 1, max= 4, avg= 2.00, stdev= 1.55, samples=6 lat (msec) : 100=8.33%, 250=16.67%, 500=58.33%, 1000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.31%, ctx=111, 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=145499: Tue Sep 15 15:45:45 2026 read: IOPS=0, BW=620KiB/s (635kB/s)(6144KiB/9903msec) clat (msec): min=55, max=616, avg=243.51, stdev=237.78 lat (msec): min=55, max=616, avg=243.52, stdev=237.78 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 108], 50.00th=[ 108], 60.00th=[ 126], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 2003, max= 4096, per=100.00%, avg=2545.50, stdev=1033.84, samples=4 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=4 write: IOPS=0, BW=620KiB/s (635kB/s)(6144KiB/9903msec); 0 zone resets clat (msec): min=208, max=6461, avg=1337.55, stdev=2511.33 lat (msec): min=208, max=6461, avg=1337.65, stdev=2511.32 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 232], | 30.00th=[ 232], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 359], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 6477], 95.00th=[ 6477], | 99.00th=[ 6477], 99.50th=[ 6477], 99.90th=[ 6477], 99.95th=[ 6477], | 99.99th=[ 6477] bw ( KiB/s): min= 2035, max= 4087, per=91.76%, avg=2554.50, stdev=1021.69, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.36%, ctx=94, 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=145500: Tue Sep 15 15:45:45 2026 read: IOPS=0, BW=510KiB/s (522kB/s)(5120KiB/10047msec) clat (msec): min=85, max=833, avg=316.98, stdev=295.60 lat (msec): min=85, max=833, avg=316.98, stdev=295.60 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 86], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 234], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 249], 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= 2003, max= 4096, per=100.00%, avg=2711.33, stdev=1199.26, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=0, BW=713KiB/s (731kB/s)(7168KiB/10047msec); 0 zone resets clat (msec): min=138, max=6185, avg=1173.06, stdev=2215.94 lat (msec): min=138, max=6185, avg=1173.14, stdev=2215.93 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 224], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 380], 60.00th=[ 447], | 70.00th=[ 447], 80.00th=[ 609], 90.00th=[ 6208], 95.00th=[ 6208], | 99.00th=[ 6208], 99.50th=[ 6208], 99.90th=[ 6208], 99.95th=[ 6208], | 99.99th=[ 6208] bw ( KiB/s): min= 2035, max= 2048, per=73.30%, avg=2040.80, stdev= 5.67, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.14%, ctx=157, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1989KiB/s (2037kB/s), 199KiB/s-838KiB/s (204kB/s-858kB/s), io=20.0MiB (20.0MB), run=8556-10296msec WRITE: bw=2785KiB/s (2852kB/s), 598KiB/s-995KiB/s (613kB/s-1018kB/s), io=28.0MiB (29.4MB), run=8556-10296msec 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=145507: Tue Sep 15 15:45:58 2026 read: IOPS=1, BW=5211KiB/s (5336kB/s)(12.0MiB/2358msec) clat (msec): min=531, max=1003, avg=769.32, stdev=235.65 lat (msec): min=531, max=1003, avg=769.32, stdev=235.65 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8078, max= 8126, per=100.00%, avg=8102.00, stdev=33.94, 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=5.94%, ctx=59, 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=145508: Tue Sep 15 15:45:58 2026 read: IOPS=0, BW=1135KiB/s (1162kB/s)(4096KiB/3610msec) clat (nsec): min=1286.6M, max=1286.6M, avg=1286646271.00, stdev= 0.00 lat (nsec): min=1286.6M, max=1286.6M, avg=1286649295.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2269KiB/s (2324kB/s)(8192KiB/3610msec); 0 zone resets clat (msec): min=437, max=1771, avg=1104.41, stdev=943.27 lat (msec): min=437, max=1773, avg=1105.80, stdev=944.63 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 1770], | 70.00th=[ 1770], 80.00th=[ 1770], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 8159, max= 8159, per=89.89%, avg=8159.00, 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=0.00%, sys=4.38%, ctx=60, 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=145509: Tue Sep 15 15:45:58 2026 write: IOPS=2, BW=8660KiB/s (8867kB/s)(12.0MiB/1419msec); 0 zone resets clat (msec): min=249, max=845, avg=461.33, stdev=332.94 lat (msec): min=249, max=845, avg=461.63, stdev=332.98 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7393, max= 8143, per=85.58%, avg=7768.00, stdev=530.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.35%, sys=13.82%, ctx=74, 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=145510: Tue Sep 15 15:45:58 2026 write: IOPS=1, BW=5671KiB/s (5807kB/s)(12.0MiB/2167msec); 0 zone resets clat (msec): min=232, max=1232, avg=677.54, stdev=508.96 lat (msec): min=233, max=1235, avg=678.77, stdev=509.92 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 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= 7529, max= 8143, per=86.33%, avg=7836.00, stdev=434.16, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.09%, sys=7.53%, ctx=46, 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=4539KiB/s (4647kB/s), 1135KiB/s-5211KiB/s (1162kB/s-5336kB/s), io=16.0MiB (16.8MB), run=2358-3610msec WRITE: bw=9077KiB/s (9295kB/s), 2269KiB/s-8660KiB/s (2324kB/s-8867kB/s), io=32.0MiB (33.6MB), run=1419-3610msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145512: Tue Sep 15 15:45:58 2026 read: IOPS=1, BW=5616KiB/s (5751kB/s)(12.0MiB/2188msec) clat (msec): min=558, max=809, avg=691.55, stdev=126.40 lat (msec): min=558, max=809, avg=691.55, stdev=126.40 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=21.63%, ctx=543, 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=145513: Tue Sep 15 15:45:58 2026 read: IOPS=0, BW=1414KiB/s (1448kB/s)(4096KiB/2897msec) clat (nsec): min=640443k, max=640443k, avg=640442874.00, stdev= 0.00 lat (nsec): min=640446k, max=640446k, avg=640445839.00, stdev= 0.00 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=[ 642], | 70.00th=[ 642], 80.00th=[ 642], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2828KiB/s (2896kB/s)(8192KiB/2897msec); 0 zone resets clat (msec): min=859, max=1241, avg=1050.39, stdev=270.55 lat (msec): min=859, max=1242, avg=1050.83, stdev=270.63 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 860], 50.00th=[ 860], 60.00th=[ 1250], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8175, max= 8175, per=84.73%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.87%, ctx=139, 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=145514: Tue Sep 15 15:45:58 2026 write: IOPS=0, BW=3618KiB/s (3705kB/s)(12.0MiB/3396msec); 0 zone resets clat (msec): min=272, max=2355, avg=1094.00, stdev=1109.38 lat (msec): min=275, max=2356, avg=1095.59, stdev=1108.21 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 8159, max= 8192, per=84.74%, 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%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.56%, ctx=60, 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=145515: Tue Sep 15 15:45:58 2026 write: IOPS=1, BW=4295KiB/s (4398kB/s)(12.0MiB/2861msec); 0 zone resets clat (msec): min=424, max=1700, avg=926.60, stdev=680.20 lat (msec): min=424, max=1701, avg=926.94, stdev=680.21 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8159, max= 8175, per=84.65%, avg=8167.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.03%, sys=5.24%, ctx=91, 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=5656KiB/s (5791kB/s), 1414KiB/s-5616KiB/s (1448kB/s-5751kB/s), io=16.0MiB (16.8MB), run=2188-2897msec WRITE: bw=9649KiB/s (9881kB/s), 2828KiB/s-4295KiB/s (2896kB/s-4398kB/s), io=32.0MiB (33.6MB), run=2861-3396msec