== sanity test 398b: DIO and buffer IO race ============== 10:31:32 (1789137092) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.15135 s, 7.0 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=143946: Fri Sep 11 10:34:09 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5992KiB/131609msec) clat (usec): min=33, max=1030.0k, avg=40522.55, stdev=40363.99 lat (usec): min=33, max=1030.0k, avg=40525.21, stdev=40365.39 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 64], | 20.00th=[ 16188], 30.00th=[ 23200], 40.00th=[ 28181], | 50.00th=[ 33817], 60.00th=[ 40633], 70.00th=[ 48497], | 80.00th=[ 63177], 90.00th=[ 81265], 95.00th=[ 96994], | 99.00th=[ 137364], 99.50th=[ 160433], 99.90th=[ 254804], | 99.95th=[1027605], 99.99th=[1027605] bw ( KiB/s): min= 6, max= 103, per=25.91%, avg=45.33, stdev=18.85, samples=257 iops : min= 1, max= 25, avg=10.66, stdev= 4.73, samples=257 write: IOPS=11, BW=47.8KiB/s (48.0kB/s)(6296KiB/131609msec); 0 zone resets clat (usec): min=890, max=292525, avg=44741.34, stdev=45236.72 lat (usec): min=891, max=292526, avg=44748.42, stdev=45233.47 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1352], 20.00th=[ 3949], | 30.00th=[ 8455], 40.00th=[ 21627], 50.00th=[ 33817], 60.00th=[ 46400], | 70.00th=[ 60031], 80.00th=[ 77071], 90.00th=[105382], 95.00th=[131597], | 99.00th=[200279], 99.50th=[221250], 99.90th=[287310], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 110, per=25.97%, avg=47.53, stdev=19.57, samples=257 iops : min= 1, max= 27, avg=11.22, stdev= 4.92, samples=257 lat (usec) : 50=1.01%, 100=5.44%, 250=0.36%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.03% lat (msec) : 2=7.03%, 4=3.32%, 10=6.22%, 20=8.63%, 50=34.47% lat (msec) : 100=25.10%, 250=8.04%, 500=0.16%, 2000=0.03% cpu : usr=0.07%, sys=5.03%, ctx=6232, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143947: Fri Sep 11 10:34:09 2026 read: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5940KiB/131034msec) clat (usec): min=29, max=398438, avg=39960.09, stdev=32982.71 lat (usec): min=30, max=398440, avg=39962.62, stdev=32983.03 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 16319], | 30.00th=[ 22938], 40.00th=[ 27919], 50.00th=[ 33817], 60.00th=[ 39584], | 70.00th=[ 50070], 80.00th=[ 61604], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[147850], 99.50th=[183501], 99.90th=[246416], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 6, max= 104, per=25.81%, avg=45.17, stdev=19.49, samples=256 iops : min= 1, max= 26, avg=10.61, stdev= 4.89, samples=256 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(6348KiB/131034msec); 0 zone resets clat (usec): min=899, max=1011.7k, avg=44922.50, stdev=52924.28 lat (usec): min=900, max=1011.7k, avg=44927.44, stdev=52923.59 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1188], 10.00th=[ 1401], | 20.00th=[ 4228], 30.00th=[ 9110], 40.00th=[ 18744], | 50.00th=[ 31065], 60.00th=[ 44827], 70.00th=[ 59507], | 80.00th=[ 77071], 90.00th=[ 109577], 95.00th=[ 133694], | 99.00th=[ 200279], 99.50th=[ 244319], 99.90th=[ 471860], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 7, max= 119, per=26.43%, avg=48.36, stdev=20.60, samples=256 iops : min= 1, max= 29, avg=11.42, stdev= 5.20, samples=256 lat (usec) : 50=0.81%, 100=5.53%, 250=0.39%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=6.64%, 4=3.45%, 10=6.41%, 20=9.64%, 50=33.92% lat (msec) : 100=24.38%, 250=8.27%, 500=0.20%, 2000=0.03% cpu : usr=0.07%, sys=4.99%, ctx=6053, 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=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=143948: Fri Sep 11 10:34:09 2026 read: IOPS=11, BW=44.1KiB/s (45.2kB/s)(6028KiB/136665msec) clat (usec): min=32, max=262301, avg=39483.86, stdev=31426.77 lat (usec): min=33, max=262303, avg=39487.58, stdev=31424.75 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 15664], | 30.00th=[ 22676], 40.00th=[ 28181], 50.00th=[ 33424], 60.00th=[ 40633], | 70.00th=[ 49546], 80.00th=[ 61604], 90.00th=[ 81265], 95.00th=[ 95945], | 99.00th=[137364], 99.50th=[170918], 99.90th=[242222], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 111, per=25.65%, avg=44.89, stdev=22.27, samples=261 iops : min= 1, max= 27, avg=10.56, stdev= 5.61, samples=261 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(6260KiB/136665msec); 0 zone resets clat (usec): min=944, max=1042.8k, avg=49023.85, stdev=55930.85 lat (usec): min=945, max=1042.8k, avg=49037.55, stdev=55922.65 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1188], 10.00th=[ 1500], | 20.00th=[ 4490], 30.00th=[ 10683], 40.00th=[ 22676], | 50.00th=[ 35914], 60.00th=[ 48497], 70.00th=[ 65274], | 80.00th=[ 86508], 90.00th=[ 113771], 95.00th=[ 139461], | 99.00th=[ 212861], 99.50th=[ 267387], 99.90th=[ 566232], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 159, per=24.89%, avg=45.55, stdev=20.73, samples=267 iops : min= 1, max= 39, avg=10.72, stdev= 5.21, samples=267 lat (usec) : 50=0.98%, 100=5.79%, 250=0.23%, 500=0.10%, 750=0.16% lat (usec) : 1000=0.03% lat (msec) : 2=6.15%, 4=3.58%, 10=5.60%, 20=9.77%, 50=33.33% lat (msec) : 100=25.13%, 250=8.82%, 500=0.26%, 750=0.03%, 2000=0.03% cpu : usr=0.07%, sys=4.93%, ctx=6258, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143949: Fri Sep 11 10:34:09 2026 read: IOPS=11, BW=45.4KiB/s (46.5kB/s)(6052KiB/133285msec) clat (usec): min=31, max=242838, avg=40971.40, stdev=32354.21 lat (usec): min=31, max=242839, avg=40974.32, stdev=32354.12 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 16581], | 30.00th=[ 23725], 40.00th=[ 28705], 50.00th=[ 34341], 60.00th=[ 42206], | 70.00th=[ 52691], 80.00th=[ 64750], 90.00th=[ 84411], 95.00th=[101188], | 99.00th=[139461], 99.50th=[149947], 99.90th=[231736], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 119, per=25.98%, avg=45.47, stdev=21.01, samples=258 iops : min= 1, max= 29, avg=10.70, stdev= 5.30, samples=258 write: IOPS=11, BW=46.8KiB/s (47.9kB/s)(6236KiB/133285msec); 0 zone resets clat (usec): min=817, max=1124.8k, avg=45440.17, stdev=56017.53 lat (usec): min=817, max=1124.8k, avg=45444.11, stdev=56020.38 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1352], | 20.00th=[ 3949], 30.00th=[ 8160], 40.00th=[ 17695], | 50.00th=[ 30540], 60.00th=[ 44827], 70.00th=[ 59507], | 80.00th=[ 79168], 90.00th=[ 110625], 95.00th=[ 139461], | 99.00th=[ 206570], 99.50th=[ 240124], 99.90th=[ 471860], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 141, per=25.50%, avg=46.66, stdev=19.57, samples=259 iops : min= 1, max= 35, avg=10.99, stdev= 4.95, samples=259 lat (usec) : 50=1.37%, 100=5.53%, 250=0.46%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=6.71%, 4=3.68%, 10=6.77%, 20=8.33%, 50=32.91% lat (msec) : 100=24.74%, 250=8.98%, 500=0.16%, 2000=0.03% cpu : usr=0.07%, sys=4.93%, ctx=6172, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=176KiB/s (180kB/s), 44.1KiB/s-45.5KiB/s (45.2kB/s-46.6kB/s), io=23.4MiB (24.6MB), run=131034-136665msec WRITE: bw=184KiB/s (188kB/s), 45.8KiB/s-48.4KiB/s (46.9kB/s-49.6kB/s), io=24.6MiB (25.7MB), run=131034-136665msec rand-rw: (groupid=0, jobs=1): err= 0: pid=143951: Fri Sep 11 10:36:42 2026 read: IOPS=5, BW=20.8KiB/s (21.3kB/s)(5992KiB/288296msec) clat (msec): min=5, max=1049, avg=39.28, stdev=41.55 lat (msec): min=5, max=1049, avg=39.28, stdev=41.55 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 55], 90.00th=[ 79], 95.00th=[ 102], | 99.00th=[ 163], 99.50th=[ 184], 99.90th=[ 409], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 87, per=28.67%, avg=23.80, stdev=15.37, samples=486 iops : min= 1, max= 21, avg= 5.32, stdev= 3.87, samples=486 write: IOPS=5, BW=21.8KiB/s (22.4kB/s)(6296KiB/288296msec); 0 zone resets clat (msec): min=39, max=644, avg=145.62, stdev=72.22 lat (msec): min=39, max=644, avg=145.62, stdev=72.22 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 89], | 30.00th=[ 103], 40.00th=[ 113], 50.00th=[ 126], 60.00th=[ 142], | 70.00th=[ 165], 80.00th=[ 194], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 376], 99.50th=[ 409], 99.90th=[ 567], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 71, per=25.00%, avg=21.50, stdev= 9.96, samples=563 iops : min= 1, max= 17, avg= 4.75, stdev= 2.54, samples=563 lat (msec) : 10=2.96%, 20=11.75%, 50=23.40%, 100=22.92%, 250=34.11% lat (msec) : 500=4.75%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.11%, ctx=5450, 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=143952: Fri Sep 11 10:36:42 2026 read: IOPS=5, BW=20.6KiB/s (21.1kB/s)(5940KiB/288330msec) clat (msec): min=5, max=890, avg=39.52, stdev=41.81 lat (msec): min=5, max=890, avg=39.53, stdev=41.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 84], 95.00th=[ 107], | 99.00th=[ 167], 99.50th=[ 211], 99.90th=[ 409], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 80, per=29.09%, avg=24.14, stdev=16.07, samples=475 iops : min= 1, max= 20, avg= 5.41, stdev= 4.05, samples=475 write: IOPS=5, BW=22.0KiB/s (22.5kB/s)(6348KiB/288330msec); 0 zone resets clat (msec): min=36, max=591, avg=144.54, stdev=69.22 lat (msec): min=36, max=591, avg=144.54, stdev=69.22 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 114], 50.00th=[ 127], 60.00th=[ 144], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 284], | 99.00th=[ 342], 99.50th=[ 376], 99.90th=[ 510], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 7, max= 63, per=25.35%, avg=21.80, stdev=10.04, samples=560 iops : min= 1, max= 15, avg= 4.82, stdev= 2.57, samples=560 lat (msec) : 10=3.29%, 20=12.43%, 50=22.14%, 100=22.49%, 250=34.64% lat (msec) : 500=4.92%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.16%, ctx=5495, 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=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=143953: Fri Sep 11 10:36:42 2026 read: IOPS=5, BW=20.9KiB/s (21.4kB/s)(6028KiB/289081msec) clat (msec): min=4, max=478, avg=40.23, stdev=36.17 lat (msec): min=4, max=478, avg=40.23, stdev=36.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 83], 95.00th=[ 104], | 99.00th=[ 161], 99.50th=[ 222], 99.90th=[ 401], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 119, per=27.93%, avg=23.18, stdev=16.48, samples=501 iops : min= 1, max= 29, avg= 5.17, stdev= 4.16, samples=501 write: IOPS=5, BW=21.7KiB/s (22.2kB/s)(6260KiB/289081msec); 0 zone resets clat (msec): min=38, max=1032, avg=145.85, stdev=76.77 lat (msec): min=38, max=1032, avg=145.85, stdev=76.77 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 101], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 169], 80.00th=[ 197], 90.00th=[ 245], 95.00th=[ 292], | 99.00th=[ 380], 99.50th=[ 435], 99.90th=[ 642], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 55, per=24.68%, avg=21.23, stdev=10.38, samples=566 iops : min= 1, max= 13, avg= 4.68, stdev= 2.65, samples=566 lat (msec) : 10=2.67%, 20=11.49%, 50=23.24%, 100=24.09%, 250=33.59% lat (msec) : 500=4.75%, 750=0.13%, 2000=0.03% cpu : usr=0.03%, sys=1.10%, ctx=5344, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=143954: Fri Sep 11 10:36:42 2026 read: IOPS=5, BW=21.1KiB/s (21.6kB/s)(6052KiB/286501msec) clat (msec): min=5, max=482, avg=40.69, stdev=39.48 lat (msec): min=5, max=482, avg=40.69, stdev=39.48 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 58], 90.00th=[ 84], 95.00th=[ 108], | 99.00th=[ 197], 99.50th=[ 228], 99.90th=[ 414], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 103, per=28.89%, avg=23.98, stdev=16.09, samples=487 iops : min= 1, max= 25, avg= 5.37, stdev= 4.05, samples=487 write: IOPS=5, BW=21.8KiB/s (22.3kB/s)(6236KiB/286501msec); 0 zone resets clat (msec): min=34, max=1108, avg=144.13, stdev=75.64 lat (msec): min=34, max=1108, avg=144.13, stdev=75.63 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 63], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 99], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 144], | 70.00th=[ 163], 80.00th=[ 192], 90.00th=[ 245], 95.00th=[ 288], | 99.00th=[ 393], 99.50th=[ 418], 99.90th=[ 584], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 55, per=25.04%, avg=21.53, stdev=10.39, samples=556 iops : min= 1, max= 13, avg= 4.75, stdev= 2.65, samples=556 lat (msec) : 10=3.16%, 20=13.61%, 50=20.70%, 100=24.38%, 250=33.46% lat (msec) : 500=4.59%, 750=0.07%, 2000=0.03% cpu : usr=0.04%, sys=1.09%, ctx=5259, 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=83.1KiB/s (85.1kB/s), 20.6KiB/s-21.1KiB/s (21.1kB/s-21.6kB/s), io=23.4MiB (24.6MB), run=286501-289081msec WRITE: bw=86.0KiB/s (89.1kB/s), 21.7KiB/s-22.0KiB/s (22.2kB/s-22.5kB/s), io=24.6MiB (25.7MB), run=286501-289081msec 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=144016: Fri Sep 11 10:37:25 2026 read: IOPS=12, BW=199KiB/s (204kB/s)(5920KiB/29677msec) clat (usec): min=34, max=219853, avg=40382.22, stdev=34191.68 lat (usec): min=34, max=219854, avg=40383.33, stdev=34191.71 clat percentiles (usec): | 1.00th=[ 37], 5.00th=[ 51], 10.00th=[ 60], 20.00th=[ 95], | 30.00th=[ 23987], 40.00th=[ 29754], 50.00th=[ 35914], 60.00th=[ 44827], | 70.00th=[ 52691], 80.00th=[ 65799], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[137364], 99.50th=[217056], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 478, per=25.47%, avg=197.91, stdev=85.64, samples=58 iops : min= 1, max= 29, avg=11.60, stdev= 5.39, samples=58 write: IOPS=13, BW=215KiB/s (220kB/s)(6368KiB/29677msec); 0 zone resets clat (usec): min=1172, max=223300, avg=36278.07, stdev=38010.06 lat (usec): min=1175, max=223302, avg=36303.50, stdev=38039.49 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1926], 10.00th=[ 2868], 20.00th=[ 5342], | 30.00th=[ 8717], 40.00th=[ 13698], 50.00th=[ 22938], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 60556], 90.00th=[ 90702], 95.00th=[108528], | 99.00th=[156238], 99.50th=[223347], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 30, max= 446, per=26.14%, avg=213.81, stdev=92.93, samples=58 iops : min= 1, max= 27, avg=12.60, stdev= 5.89, samples=58 lat (usec) : 50=2.21%, 100=7.55%, 250=0.91%, 500=0.13%, 750=0.13% lat (msec) : 2=2.99%, 4=4.17%, 10=10.55%, 20=7.68%, 50=32.68% lat (msec) : 100=24.74%, 250=6.25% cpu : usr=0.08%, sys=5.44%, ctx=1410, 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=144017: Fri Sep 11 10:37:25 2026 read: IOPS=11, BW=190KiB/s (195kB/s)(5744KiB/30174msec) clat (usec): min=34, max=252691, avg=40810.50, stdev=32657.05 lat (usec): min=34, max=252692, avg=40811.75, stdev=32656.98 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 58], 10.00th=[ 64], 20.00th=[ 545], | 30.00th=[ 23200], 40.00th=[ 30802], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 55837], 80.00th=[ 64226], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[126354], 99.50th=[179307], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 448, per=25.29%, avg=196.53, stdev=98.79, samples=57 iops : min= 1, max= 28, avg=11.51, stdev= 6.25, samples=57 write: IOPS=13, BW=217KiB/s (222kB/s)(6544KiB/30174msec); 0 zone resets clat (usec): min=1411, max=373906, avg=37170.13, stdev=50188.86 lat (usec): min=1414, max=373908, avg=37172.99, stdev=50188.36 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1745], 10.00th=[ 2671], 20.00th=[ 4555], | 30.00th=[ 7832], 40.00th=[ 12518], 50.00th=[ 18220], 60.00th=[ 30540], | 70.00th=[ 45876], 80.00th=[ 57410], 90.00th=[ 81265], 95.00th=[122160], | 99.00th=[299893], 99.50th=[320865], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 31, max= 383, per=26.49%, avg=216.68, stdev=89.91, samples=59 iops : min= 1, max= 23, avg=12.78, stdev= 5.66, samples=59 lat (usec) : 50=0.78%, 100=7.68%, 250=0.52%, 500=0.26%, 750=0.26% lat (usec) : 1000=0.26% lat (msec) : 2=4.17%, 4=4.69%, 10=9.77%, 20=10.94%, 50=29.30% lat (msec) : 100=25.78%, 250=4.82%, 500=0.78% cpu : usr=0.09%, sys=5.40%, ctx=1401, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144018: Fri Sep 11 10:37:25 2026 read: IOPS=13, BW=210KiB/s (215kB/s)(6256KiB/29818msec) clat (usec): min=33, max=171493, avg=41013.33, stdev=30574.99 lat (usec): min=33, max=171495, avg=41014.82, stdev=30575.14 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 53], 10.00th=[ 62], 20.00th=[ 16450], | 30.00th=[ 25822], 40.00th=[ 31851], 50.00th=[ 38536], 60.00th=[ 46924], | 70.00th=[ 53740], 80.00th=[ 62129], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[168821], 99.90th=[170918], 99.95th=[170918], | 99.99th=[170918] bw ( KiB/s): min= 93, max= 542, per=27.25%, avg=211.71, stdev=82.39, samples=58 iops : min= 5, max= 33, avg=12.47, stdev= 5.18, samples=58 write: IOPS=12, BW=202KiB/s (207kB/s)(6032KiB/29818msec); 0 zone resets clat (usec): min=1179, max=274476, avg=36302.29, stdev=39578.16 lat (usec): min=1181, max=274477, avg=36304.35, stdev=39578.15 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1696], 10.00th=[ 2212], 20.00th=[ 6325], | 30.00th=[ 8848], 40.00th=[ 13960], 50.00th=[ 22938], 60.00th=[ 34866], | 70.00th=[ 44303], 80.00th=[ 61080], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[191890], 99.50th=[223347], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 415, per=24.44%, avg=199.91, stdev=78.93, samples=58 iops : min= 1, max= 25, avg=11.74, stdev= 5.02, samples=58 lat (usec) : 50=1.82%, 100=6.64%, 250=0.26%, 1000=0.39% lat (msec) : 2=4.69%, 4=2.99%, 10=8.33%, 20=9.77%, 50=34.38% lat (msec) : 100=24.87%, 250=5.73%, 500=0.13% cpu : usr=0.07%, sys=5.66%, ctx=1472, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144019: Fri Sep 11 10:37:25 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(6032KiB/30805msec) clat (usec): min=27, max=278310, avg=39466.20, stdev=35598.41 lat (usec): min=27, max=278312, avg=39477.16, stdev=35617.31 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 79], | 30.00th=[ 20841], 40.00th=[ 30540], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 61080], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[158335], 99.50th=[242222], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 447, per=25.41%, avg=197.47, stdev=80.55, samples=58 iops : min= 1, max= 27, avg=11.57, stdev= 5.06, samples=58 write: IOPS=12, BW=203KiB/s (208kB/s)(6256KiB/30805msec); 0 zone resets clat (usec): min=1335, max=285600, avg=39895.06, stdev=45227.32 lat (usec): min=1339, max=285603, avg=39897.83, stdev=45227.77 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1827], 10.00th=[ 2737], 20.00th=[ 5473], | 30.00th=[ 9634], 40.00th=[ 13698], 50.00th=[ 23725], 60.00th=[ 33424], | 70.00th=[ 46400], 80.00th=[ 69731], 90.00th=[101188], 95.00th=[125305], | 99.00th=[225444], 99.50th=[265290], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 411, per=24.89%, avg=203.58, stdev=89.55, samples=59 iops : min= 1, max= 25, avg=11.97, stdev= 5.69, samples=59 lat (usec) : 50=1.43%, 100=9.24%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=3.65%, 4=4.04%, 10=8.72%, 20=10.68%, 50=32.03% lat (msec) : 100=22.40%, 250=6.77%, 500=0.52% cpu : usr=0.06%, sys=5.18%, ctx=1427, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=778KiB/s (796kB/s), 190KiB/s-210KiB/s (195kB/s-215kB/s), io=23.4MiB (24.5MB), run=29677-30805msec WRITE: bw=818KiB/s (838kB/s), 202KiB/s-217KiB/s (207kB/s-222kB/s), io=24.6MiB (25.8MB), run=29677-30805msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144011: Fri Sep 11 10:38:08 2026 read: IOPS=5, BW=80.4KiB/s (82.3kB/s)(5920KiB/73653msec) clat (msec): min=6, max=359, avg=45.79, stdev=47.05 lat (msec): min=6, max=359, avg=45.80, stdev=47.05 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 63], 90.00th=[ 89], 95.00th=[ 131], | 99.00th=[ 288], 99.50th=[ 321], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 29, max= 344, per=27.64%, avg=89.56, stdev=57.84, samples=128 iops : min= 1, max= 21, avg= 4.84, stdev= 3.73, samples=128 write: IOPS=5, BW=86.5KiB/s (88.5kB/s)(6368KiB/73653msec); 0 zone resets clat (msec): min=37, max=475, avg=142.33, stdev=69.45 lat (msec): min=37, max=475, avg=142.34, stdev=69.45 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 66], 20.00th=[ 83], | 30.00th=[ 99], 40.00th=[ 118], 50.00th=[ 133], 60.00th=[ 148], | 70.00th=[ 167], 80.00th=[ 186], 90.00th=[ 226], 95.00th=[ 279], | 99.00th=[ 368], 99.50th=[ 409], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 31, max= 224, per=25.36%, avg=86.46, stdev=41.26, samples=143 iops : min= 1, max= 14, avg= 4.64, stdev= 2.68, samples=143 lat (msec) : 10=2.60%, 20=9.64%, 50=24.48%, 100=23.83%, 250=34.64% lat (msec) : 500=4.82% cpu : usr=0.03%, sys=1.29%, ctx=1419, 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=144012: Fri Sep 11 10:38:08 2026 read: IOPS=4, BW=77.7KiB/s (79.6kB/s)(5744KiB/73878msec) clat (msec): min=4, max=341, avg=46.35, stdev=42.70 lat (msec): min=4, max=341, avg=46.35, stdev=42.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 28], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 50], 80.00th=[ 65], 90.00th=[ 91], 95.00th=[ 124], | 99.00th=[ 207], 99.50th=[ 288], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 21, max= 255, per=27.72%, avg=89.82, stdev=56.33, samples=124 iops : min= 1, max= 15, avg= 4.88, stdev= 3.57, samples=124 write: IOPS=5, BW=88.6KiB/s (90.7kB/s)(6544KiB/73878msec); 0 zone resets clat (msec): min=34, max=549, avg=139.44, stdev=69.44 lat (msec): min=34, max=549, avg=139.44, stdev=69.44 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 83], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 126], 60.00th=[ 148], | 70.00th=[ 165], 80.00th=[ 192], 90.00th=[ 230], 95.00th=[ 253], | 99.00th=[ 351], 99.50th=[ 384], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 21, max= 221, per=25.99%, avg=88.64, stdev=42.69, samples=143 iops : min= 1, max= 13, avg= 4.80, stdev= 2.75, samples=143 lat (msec) : 10=2.73%, 20=8.85%, 50=23.57%, 100=27.08%, 250=34.38% lat (msec) : 500=3.26%, 750=0.13% cpu : usr=0.05%, sys=1.44%, ctx=1467, 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=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=144013: Fri Sep 11 10:38:08 2026 read: IOPS=5, BW=87.9KiB/s (90.0kB/s)(6256KiB/71143msec) clat (msec): min=5, max=443, avg=42.25, stdev=39.33 lat (msec): min=5, max=443, avg=42.25, stdev=39.33 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 82], 95.00th=[ 102], | 99.00th=[ 197], 99.50th=[ 321], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 31, max= 318, per=30.26%, avg=98.04, stdev=62.94, samples=126 iops : min= 1, max= 19, avg= 5.38, stdev= 4.03, samples=126 write: IOPS=5, BW=84.8KiB/s (86.8kB/s)(6032KiB/71143msec); 0 zone resets clat (msec): min=39, max=413, avg=144.26, stdev=68.96 lat (msec): min=39, max=413, avg=144.27, stdev=68.96 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 61], 10.00th=[ 72], 20.00th=[ 89], | 30.00th=[ 103], 40.00th=[ 112], 50.00th=[ 130], 60.00th=[ 144], | 70.00th=[ 167], 80.00th=[ 199], 90.00th=[ 236], 95.00th=[ 288], | 99.00th=[ 384], 99.50th=[ 405], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 21, max= 192, per=24.87%, avg=84.80, stdev=37.98, samples=139 iops : min= 1, max= 12, avg= 4.55, stdev= 2.48, samples=139 lat (msec) : 10=1.43%, 20=10.29%, 50=27.86%, 100=22.66%, 250=33.85% lat (msec) : 500=3.91% cpu : usr=0.04%, sys=1.35%, ctx=1417, 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=144014: Fri Sep 11 10:38:08 2026 read: IOPS=5, BW=83.5KiB/s (85.5kB/s)(6032KiB/72253msec) clat (msec): min=5, max=491, avg=43.37, stdev=46.54 lat (msec): min=5, max=491, avg=43.37, stdev=46.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 55], 90.00th=[ 78], 95.00th=[ 124], | 99.00th=[ 257], 99.50th=[ 359], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 30, max= 279, per=29.65%, avg=96.07, stdev=60.15, samples=122 iops : min= 1, max= 17, avg= 5.27, stdev= 3.87, samples=122 write: IOPS=5, BW=86.6KiB/s (88.7kB/s)(6256KiB/72253msec); 0 zone resets clat (msec): min=31, max=423, avg=142.04, stdev=70.81 lat (msec): min=31, max=423, avg=142.04, stdev=70.81 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 61], 10.00th=[ 71], 20.00th=[ 84], | 30.00th=[ 97], 40.00th=[ 110], 50.00th=[ 125], 60.00th=[ 142], | 70.00th=[ 165], 80.00th=[ 197], 90.00th=[ 241], 95.00th=[ 288], | 99.00th=[ 397], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 21, max= 192, per=25.86%, avg=88.18, stdev=42.61, samples=139 iops : min= 1, max= 12, avg= 4.78, stdev= 2.77, samples=139 lat (msec) : 10=1.30%, 20=11.72%, 50=24.35%, 100=24.61%, 250=33.07% lat (msec) : 500=4.95% cpu : usr=0.04%, sys=1.38%, ctx=1481, 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=324KiB/s (332kB/s), 77.7KiB/s-87.9KiB/s (79.6kB/s-90.0kB/s), io=23.4MiB (24.5MB), run=71143-73878msec WRITE: bw=341KiB/s (349kB/s), 84.8KiB/s-88.6KiB/s (86.8kB/s-90.7kB/s), io=24.6MiB (25.8MB), run=71143-73878msec 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=144036: Fri Sep 11 10:38:19 2026 read: IOPS=1, BW=1540KiB/s (1577kB/s)(7168KiB/4655msec) clat (usec): min=1096, max=822314, avg=248985.29, stdev=294156.13 lat (usec): min=1097, max=822315, avg=248986.73, stdev=294155.96 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1090], 10.00th=[ 1090], 20.00th=[ 2868], | 30.00th=[115868], 40.00th=[115868], 50.00th=[166724], 60.00th=[185598], | 70.00th=[185598], 80.00th=[446694], 90.00th=[826278], 95.00th=[826278], | 99.00th=[826278], 99.50th=[826278], 99.90th=[826278], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 2027, max= 5446, per=87.47%, avg=3848.00, stdev=1720.37, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=1, BW=1100KiB/s (1126kB/s)(5120KiB/4655msec); 0 zone resets clat (msec): min=253, max=1192, avg=575.28, stdev=358.48 lat (msec): min=253, max=1192, avg=575.37, stdev=358.47 clat percentiles (msec): | 1.00th=[ 253], 5.00th=[ 253], 10.00th=[ 253], 20.00th=[ 253], | 30.00th=[ 464], 40.00th=[ 464], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 485], 80.00th=[ 485], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1809, max= 4055, per=40.10%, avg=2469.50, stdev=1061.11, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 250=25.00%, 500=41.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.86%, ctx=204, 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=144037: Fri Sep 11 10:38:19 2026 read: IOPS=0, BW=450KiB/s (461kB/s)(2048KiB/4552msec) clat (msec): min=111, max=190, avg=151.08, stdev=56.20 lat (msec): min=111, max=190, avg=151.08, stdev=56.20 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 112], 10.00th=[ 112], 20.00th=[ 112], | 30.00th=[ 112], 40.00th=[ 112], 50.00th=[ 112], 60.00th=[ 190], | 70.00th=[ 190], 80.00th=[ 190], 90.00th=[ 190], 95.00th=[ 190], | 99.00th=[ 190], 99.50th=[ 190], 99.90th=[ 190], 99.95th=[ 190], | 99.99th=[ 190] bw ( KiB/s): min= 1872, max= 1896, per=42.83%, avg=1884.00, stdev=16.97, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2250KiB/s (2304kB/s)(10.0MiB/4552msec); 0 zone resets clat (msec): min=133, max=701, avg=413.16, stdev=190.85 lat (msec): min=133, max=701, avg=413.32, stdev=190.85 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 182], | 30.00th=[ 266], 40.00th=[ 342], 50.00th=[ 380], 60.00th=[ 414], | 70.00th=[ 527], 80.00th=[ 550], 90.00th=[ 642], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1809, max= 4055, per=41.04%, avg=2527.43, stdev=944.84, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.02%, sys=9.45%, ctx=110, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144038: Fri Sep 11 10:38:19 2026 read: IOPS=1, BW=1937KiB/s (1983kB/s)(6144KiB/3172msec) clat (usec): min=490, max=396605, avg=187399.23, stdev=139335.56 lat (usec): min=491, max=396606, avg=187400.54, stdev=139335.65 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[107480], | 30.00th=[107480], 40.00th=[122160], 50.00th=[122160], 60.00th=[244319], | 70.00th=[254804], 80.00th=[254804], 90.00th=[396362], 95.00th=[396362], | 99.00th=[396362], 99.50th=[396362], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 2007, max= 3744, per=55.81%, avg=2455.25, stdev=859.27, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1937KiB/s (1983kB/s)(6144KiB/3172msec); 0 zone resets clat (msec): min=178, max=493, avg=329.02, stdev=111.42 lat (msec): min=178, max=493, avg=329.12, stdev=111.43 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 253], | 30.00th=[ 253], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 376], | 70.00th=[ 380], 80.00th=[ 380], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1996, max= 3744, per=38.28%, avg=2357.80, stdev=775.04, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=33.33%, 500=58.33% cpu : usr=0.00%, sys=13.18%, ctx=146, 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=144039: Fri Sep 11 10:38:19 2026 read: IOPS=1, BW=1316KiB/s (1347kB/s)(5120KiB/3891msec) clat (usec): min=514, max=457728, avg=145312.78, stdev=208374.51 lat (usec): min=516, max=457729, avg=145313.69, stdev=208374.42 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 603], 40.00th=[ 603], 50.00th=[ 3654], 60.00th=[ 3654], | 70.00th=[263193], 80.00th=[263193], 90.00th=[459277], 95.00th=[459277], | 99.00th=[459277], 99.50th=[459277], 99.90th=[459277], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 2007, max= 5616, per=86.64%, avg=3811.50, stdev=2551.95, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1842KiB/s (1886kB/s)(7168KiB/3891msec); 0 zone resets clat (msec): min=286, max=801, avg=430.46, stdev=193.71 lat (msec): min=286, max=801, avg=430.56, stdev=193.72 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 330], 60.00th=[ 443], | 70.00th=[ 443], 80.00th=[ 567], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1809, max= 4015, per=38.12%, avg=2347.60, stdev=936.78, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=16.67% lat (msec) : 4=8.33%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=9.74%, ctx=119, 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=4400KiB/s (4505kB/s), 450KiB/s-1937KiB/s (461kB/s-1983kB/s), io=20.0MiB (20.0MB), run=3172-4655msec WRITE: bw=6159KiB/s (6307kB/s), 1100KiB/s-2250KiB/s (1126kB/s-2304kB/s), io=28.0MiB (29.4MB), run=3172-4655msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144041: Fri Sep 11 10:38:21 2026 read: IOPS=1, BW=1492KiB/s (1528kB/s)(7168KiB/4805msec) clat (msec): min=82, max=766, avg=402.76, stdev=296.35 lat (msec): min=82, max=766, avg=402.76, stdev=296.35 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 113], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 384], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 684], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 1815, max= 2035, per=46.61%, avg=1951.17, stdev=93.01, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 write: IOPS=1, BW=1066KiB/s (1091kB/s)(5120KiB/4805msec); 0 zone resets clat (msec): min=181, max=753, avg=329.28, stdev=239.30 lat (msec): min=182, max=753, avg=329.48, stdev=239.24 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 182], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 236], 60.00th=[ 236], | 70.00th=[ 266], 80.00th=[ 266], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 2035, max= 6095, per=57.84%, avg=3389.67, stdev=2342.89, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=4.14%, ctx=73, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144042: Fri Sep 11 10:38:21 2026 read: IOPS=0, BW=475KiB/s (486kB/s)(2048KiB/4313msec) clat (msec): min=166, max=221, avg=193.80, stdev=38.79 lat (msec): min=166, max=221, avg=193.80, stdev=38.79 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 222], | 70.00th=[ 222], 80.00th=[ 222], 90.00th=[ 222], 95.00th=[ 222], | 99.00th=[ 222], 99.50th=[ 222], 99.90th=[ 222], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 1389, max= 1969, per=40.11%, avg=1679.00, stdev=410.12, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2374KiB/s (2431kB/s)(10.0MiB/4313msec); 0 zone resets clat (msec): min=184, max=732, avg=373.01, stdev=162.89 lat (msec): min=184, max=732, avg=373.33, stdev=163.07 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 186], | 30.00th=[ 230], 40.00th=[ 321], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 401], 80.00th=[ 422], 90.00th=[ 485], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1389, max= 4079, per=43.44%, avg=2545.67, stdev=1175.75, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=41.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=3.18%, ctx=70, 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=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=144043: Fri Sep 11 10:38:21 2026 read: IOPS=1, BW=1414KiB/s (1448kB/s)(6144KiB/4346msec) clat (msec): min=118, max=440, avg=186.77, stdev=124.51 lat (msec): min=118, max=440, avg=186.78, stdev=124.51 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 142], 50.00th=[ 142], 60.00th=[ 144], | 70.00th=[ 144], 80.00th=[ 144], 90.00th=[ 439], 95.00th=[ 439], | 99.00th=[ 439], 99.50th=[ 439], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 1889, max= 4055, per=59.83%, avg=2504.50, stdev=1036.02, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1414KiB/s (1448kB/s)(6144KiB/4346msec); 0 zone resets clat (msec): min=167, max=1054, avg=503.31, stdev=330.42 lat (msec): min=167, max=1054, avg=503.64, stdev=330.49 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 584], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 1815, max= 4071, per=40.23%, avg=2357.20, stdev=961.59, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.02%, sys=3.20%, ctx=83, 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=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=144044: Fri Sep 11 10:38:21 2026 read: IOPS=1, BW=1047KiB/s (1072kB/s)(5120KiB/4892msec) clat (msec): min=123, max=577, avg=272.55, stdev=182.24 lat (msec): min=123, max=577, avg=272.55, stdev=182.24 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 125], 10.00th=[ 125], 20.00th=[ 125], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 190], 60.00th=[ 190], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 2035, max= 6083, per=96.97%, avg=4059.00, stdev=2862.37, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1465KiB/s (1500kB/s)(7168KiB/4892msec); 0 zone resets clat (msec): min=148, max=861, avg=463.12, stdev=253.46 lat (msec): min=148, max=862, avg=463.26, stdev=253.52 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 176], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 481], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 651], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1815, max= 4063, per=49.66%, avg=2910.00, stdev=1174.64, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=2.94%, ctx=82, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4186KiB/s (4287kB/s), 475KiB/s-1492KiB/s (486kB/s-1528kB/s), io=20.0MiB (20.0MB), run=4313-4892msec WRITE: bw=5861KiB/s (6002kB/s), 1066KiB/s-2374KiB/s (1091kB/s-2431kB/s), io=28.0MiB (29.4MB), run=4313-4892msec 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=144052: Fri Sep 11 10:38:37 2026 read: IOPS=0, BW=2308KiB/s (2363kB/s)(12.0MiB/5325msec) clat (msec): min=778, max=3497, avg=1746.44, stdev=1518.91 lat (msec): min=778, max=3497, avg=1746.44, stdev=1518.91 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 3507], 80.00th=[ 3507], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, 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=6.91%, ctx=499, 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=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=144053: Fri Sep 11 10:38:37 2026 read: IOPS=0, BW=1600KiB/s (1638kB/s)(4096KiB/2560msec) clat (nsec): min=1301.2M, max=1301.2M, avg=1301153397.00, stdev= 0.00 lat (nsec): min=1301.2M, max=1301.2M, avg=1301157182.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1301], 5.00th=[ 1301], 10.00th=[ 1301], 20.00th=[ 1301], | 30.00th=[ 1301], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3200KiB/s (3277kB/s)(8192KiB/2560msec); 0 zone resets clat (msec): min=278, max=792, avg=535.39, stdev=363.49 lat (msec): min=278, max=799, avg=539.35, stdev=368.53 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.53%, ctx=78, 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=144054: Fri Sep 11 10:38:37 2026 write: IOPS=0, BW=2123KiB/s (2174kB/s)(12.0MiB/5787msec); 0 zone resets clat (msec): min=443, max=3898, avg=1867.26, stdev=1805.58 lat (msec): min=443, max=3898, avg=1868.03, stdev=1805.50 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 3910], 80.00th=[ 3910], 90.00th=[ 3910], 95.00th=[ 3910], | 99.00th=[ 3910], 99.50th=[ 3910], 99.90th=[ 3910], 99.95th=[ 3910], | 99.99th=[ 3910] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=3.84%, ctx=86, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=144055: Fri Sep 11 10:38:37 2026 write: IOPS=0, BW=2413KiB/s (2471kB/s)(12.0MiB/5092msec); 0 zone resets clat (msec): min=526, max=3431, avg=1695.56, stdev=1533.21 lat (msec): min=527, max=3432, avg=1697.05, stdev=1532.64 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 3440], 80.00th=[ 3440], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 7460, max= 8126, per=100.00%, avg=7793.00, stdev=470.93, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.08%, sys=2.04%, ctx=40, 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=3077KiB/s (3151kB/s), 1600KiB/s-2308KiB/s (1638kB/s-2363kB/s), io=16.0MiB (16.8MB), run=2560-5325msec WRITE: bw=5662KiB/s (5798kB/s), 2123KiB/s-3200KiB/s (2174kB/s-3277kB/s), io=32.0MiB (33.6MB), run=2560-5787msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144057: Fri Sep 11 10:38:37 2026 read: IOPS=0, BW=2610KiB/s (2673kB/s)(12.0MiB/4708msec) clat (msec): min=374, max=3281, avg=1562.72, stdev=1524.51 lat (msec): min=374, max=3281, avg=1562.72, stdev=1524.51 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] bw ( KiB/s): min= 8000, max= 8159, per=100.00%, avg=8079.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.70%, ctx=30, 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=144058: Fri Sep 11 10:38:37 2026 read: IOPS=0, BW=844KiB/s (864kB/s)(4096KiB/4854msec) clat (nsec): min=3290.1M, max=3290.1M, avg=3290131057.00, stdev= 0.00 lat (nsec): min=3290.1M, max=3290.1M, avg=3290133625.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3306], 5.00th=[ 3306], 10.00th=[ 3306], 20.00th=[ 3306], | 30.00th=[ 3306], 40.00th=[ 3306], 50.00th=[ 3306], 60.00th=[ 3306], | 70.00th=[ 3306], 80.00th=[ 3306], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1688KiB/s (1728kB/s)(8192KiB/4854msec); 0 zone resets clat (msec): min=393, max=1061, avg=727.22, stdev=472.29 lat (msec): min=393, max=1061, avg=727.69, stdev=472.30 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 1062], | 70.00th=[ 1062], 80.00th=[ 1062], 90.00th=[ 1062], 95.00th=[ 1062], | 99.00th=[ 1062], 99.50th=[ 1062], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.04%, ctx=40, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144059: Fri Sep 11 10:38:37 2026 write: IOPS=0, BW=2369KiB/s (2426kB/s)(12.0MiB/5186msec); 0 zone resets clat (msec): min=316, max=3544, avg=1726.08, stdev=1652.57 lat (msec): min=317, max=3545, avg=1726.51, stdev=1652.66 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 1318], 50.00th=[ 1318], 60.00th=[ 1318], | 70.00th=[ 3540], 80.00th=[ 3540], 90.00th=[ 3540], 95.00th=[ 3540], | 99.00th=[ 3540], 99.50th=[ 3540], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 8000, max= 8159, per=100.00%, avg=8079.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.72%, ctx=29, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144060: Fri Sep 11 10:38:37 2026 write: IOPS=0, BW=2797KiB/s (2864kB/s)(12.0MiB/4393msec); 0 zone resets clat (msec): min=384, max=3389, avg=1462.85, stdev=1672.32 lat (msec): min=384, max=3391, avg=1463.95, stdev=1673.62 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 617], 50.00th=[ 617], 60.00th=[ 617], | 70.00th=[ 3406], 80.00th=[ 3406], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min=16253, max=16253, per=100.00%, avg=16253.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.07%, sys=2.23%, ctx=36, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3375KiB/s (3456kB/s), 844KiB/s-2610KiB/s (864kB/s-2673kB/s), io=16.0MiB (16.8MB), run=4708-4854msec WRITE: bw=6319KiB/s (6470kB/s), 1688KiB/s-2797KiB/s (1728kB/s-2864kB/s), io=32.0MiB (33.6MB), run=4393-5186msec