== sanity test 398b: DIO and buffer IO race ============== 10:08:21 (1783519701) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.74829 s, 18.3 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=187886: Wed Jul 8 10:09:45 2026 read: IOPS=20, BW=80.3KiB/s (82.2kB/s)(5992KiB/74618msec) clat (usec): min=86, max=1325.9k, avg=27233.76, stdev=35830.31 lat (usec): min=86, max=1325.9k, avg=27234.52, stdev=35830.33 clat percentiles (usec): | 1.00th=[ 210], 5.00th=[ 10421], 10.00th=[ 13042], | 20.00th=[ 16319], 30.00th=[ 19268], 40.00th=[ 21890], | 50.00th=[ 24511], 60.00th=[ 27395], 70.00th=[ 31065], | 80.00th=[ 35390], 90.00th=[ 42206], 95.00th=[ 49021], | 99.00th=[ 63701], 99.50th=[ 76022], 99.90th=[ 111674], | 99.95th=[1333789], 99.99th=[1333789] bw ( KiB/s): min= 13, max= 175, per=25.51%, avg=81.13, stdev=26.67, samples=146 iops : min= 3, max= 43, avg=19.77, stdev= 6.70, samples=146 write: IOPS=21, BW=84.4KiB/s (86.4kB/s)(6296KiB/74618msec); 0 zone resets clat (usec): min=943, max=89362, avg=21247.86, stdev=14362.81 lat (usec): min=944, max=89363, avg=21248.91, stdev=14362.83 clat percentiles (usec): | 1.00th=[ 2540], 5.00th=[ 4490], 10.00th=[ 5997], 20.00th=[ 7898], | 30.00th=[11207], 40.00th=[14877], 50.00th=[17957], 60.00th=[21890], | 70.00th=[26870], 80.00th=[32900], 90.00th=[42206], 95.00th=[49546], | 99.00th=[63701], 99.50th=[67634], 99.90th=[74974], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 31, max= 176, per=25.76%, avg=85.77, stdev=30.51, samples=145 iops : min= 7, max= 44, avg=20.93, stdev= 7.65, samples=145 lat (usec) : 100=0.07%, 250=0.59%, 500=0.07%, 1000=0.03% lat (msec) : 2=0.10%, 4=1.99%, 10=12.86%, 20=28.65%, 50=50.98% lat (msec) : 100=4.59%, 250=0.07%, 2000=0.03% cpu : usr=0.08%, sys=27.16%, ctx=11394, 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=187887: Wed Jul 8 10:09:45 2026 read: IOPS=19, BW=78.9KiB/s (80.8kB/s)(5940KiB/75323msec) clat (usec): min=49, max=94194, avg=26858.10, stdev=12882.98 lat (usec): min=49, max=94195, avg=26859.52, stdev=12882.82 clat percentiles (usec): | 1.00th=[ 225], 5.00th=[10028], 10.00th=[12649], 20.00th=[16188], | 30.00th=[18744], 40.00th=[21627], 50.00th=[24773], 60.00th=[28443], | 70.00th=[32375], 80.00th=[36439], 90.00th=[43779], 95.00th=[50070], | 99.00th=[65274], 99.50th=[69731], 99.90th=[91751], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 6, max= 152, per=24.98%, avg=79.44, stdev=26.50, samples=147 iops : min= 1, max= 38, avg=19.34, stdev= 6.65, samples=147 write: IOPS=21, BW=84.3KiB/s (86.3kB/s)(6348KiB/75323msec); 0 zone resets clat (usec): min=715, max=1267.9k, avg=22104.83, stdev=34372.82 lat (usec): min=715, max=1267.9k, avg=22106.56, stdev=34372.93 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 3884], 10.00th=[ 5604], | 20.00th=[ 7832], 30.00th=[ 11863], 40.00th=[ 15139], | 50.00th=[ 18744], 60.00th=[ 22676], 70.00th=[ 26608], | 80.00th=[ 32900], 90.00th=[ 41681], 95.00th=[ 49021], | 99.00th=[ 62653], 99.50th=[ 66323], 99.90th=[ 83362], | 99.95th=[1266680], 99.99th=[1266680] bw ( KiB/s): min= 6, max= 200, per=25.44%, avg=84.72, stdev=31.99, samples=147 iops : min= 1, max= 50, avg=20.66, stdev= 8.06, samples=147 lat (usec) : 50=0.03%, 250=0.52%, 500=0.10%, 750=0.07%, 1000=0.07% lat (msec) : 2=0.42%, 4=2.18%, 10=12.50%, 20=27.96%, 50=51.37% lat (msec) : 100=4.75%, 2000=0.03% cpu : usr=0.08%, sys=26.84%, ctx=11480, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187888: Wed Jul 8 10:09:45 2026 read: IOPS=19, BW=79.9KiB/s (81.8kB/s)(6028KiB/75450msec) clat (usec): min=41, max=87253, avg=26135.81, stdev=12352.44 lat (usec): min=42, max=87254, avg=26136.66, stdev=12352.50 clat percentiles (usec): | 1.00th=[ 217], 5.00th=[10159], 10.00th=[12518], 20.00th=[16057], | 30.00th=[18744], 40.00th=[21365], 50.00th=[24249], 60.00th=[27395], | 70.00th=[30802], 80.00th=[35390], 90.00th=[42206], 95.00th=[49021], | 99.00th=[64226], 99.50th=[69731], 99.90th=[85459], 99.95th=[87557], | 99.99th=[87557] bw ( KiB/s): min= 32, max= 168, per=25.53%, avg=81.18, stdev=28.06, samples=147 iops : min= 8, max= 42, avg=19.78, stdev= 7.02, samples=147 write: IOPS=20, BW=82.0KiB/s (84.0kB/s)(6260KiB/75450msec); 0 zone resets clat (usec): min=1025, max=1293.7k, avg=22795.63, stdev=35214.39 lat (usec): min=1026, max=1293.7k, avg=22808.37, stdev=35211.01 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 5], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 13], 40.00th=[ 16], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 34], 90.00th=[ 41], 95.00th=[ 51], | 99.00th=[ 65], 99.50th=[ 79], 99.90th=[ 99], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 31, max= 199, per=25.28%, avg=84.18, stdev=28.10, samples=147 iops : min= 7, max= 49, avg=20.52, stdev= 7.04, samples=147 lat (usec) : 50=0.07%, 100=0.13%, 250=0.42%, 500=0.16% lat (msec) : 2=0.20%, 4=1.60%, 10=11.46%, 20=29.30%, 50=51.86% lat (msec) : 100=4.79%, 2000=0.03% cpu : usr=0.09%, sys=26.97%, ctx=11549, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187889: Wed Jul 8 10:09:45 2026 read: IOPS=20, BW=80.5KiB/s (82.4kB/s)(6052KiB/75223msec) clat (usec): min=40, max=111901, avg=26615.88, stdev=13149.28 lat (usec): min=41, max=111901, avg=26616.70, stdev=13149.39 clat percentiles (usec): | 1.00th=[ 233], 5.00th=[ 9765], 10.00th=[ 12649], 20.00th=[ 15926], | 30.00th=[ 18482], 40.00th=[ 21627], 50.00th=[ 24773], 60.00th=[ 27919], | 70.00th=[ 31589], 80.00th=[ 36439], 90.00th=[ 42730], 95.00th=[ 50070], | 99.00th=[ 65799], 99.50th=[ 74974], 99.90th=[108528], 99.95th=[111674], | 99.99th=[111674] bw ( KiB/s): min= 32, max= 176, per=25.64%, avg=81.53, stdev=28.16, samples=146 iops : min= 8, max= 44, avg=19.86, stdev= 7.08, samples=146 write: IOPS=20, BW=82.9KiB/s (84.9kB/s)(6236KiB/75223msec); 0 zone resets clat (usec): min=655, max=1291.5k, avg=22176.12, stdev=35251.08 lat (usec): min=656, max=1291.5k, avg=22179.75, stdev=35252.45 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 3851], 10.00th=[ 5866], | 20.00th=[ 8029], 30.00th=[ 11863], 40.00th=[ 15139], | 50.00th=[ 18482], 60.00th=[ 22414], 70.00th=[ 26608], | 80.00th=[ 32637], 90.00th=[ 41157], 95.00th=[ 49021], | 99.00th=[ 64226], 99.50th=[ 72877], 99.90th=[ 95945], | 99.95th=[1283458], 99.99th=[1283458] bw ( KiB/s): min= 31, max= 200, per=25.24%, avg=84.04, stdev=29.86, samples=146 iops : min= 7, max= 50, avg=20.49, stdev= 7.48, samples=146 lat (usec) : 50=0.03%, 100=0.03%, 250=0.55%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.23% lat (msec) : 2=0.42%, 4=2.02%, 10=11.82%, 20=29.56%, 50=50.46% lat (msec) : 100=4.56%, 250=0.07%, 2000=0.03% cpu : usr=0.07%, sys=26.80%, ctx=11377, 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=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=318KiB/s (326kB/s), 78.9KiB/s-80.5KiB/s (80.8kB/s-82.4kB/s), io=23.4MiB (24.6MB), run=74618-75450msec WRITE: bw=333KiB/s (341kB/s), 82.9KiB/s-84.4KiB/s (84.9kB/s-86.4kB/s), io=24.6MiB (25.7MB), run=74618-75450msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187891: Wed Jul 8 10:09:51 2026 read: IOPS=18, BW=73.9KiB/s (75.7kB/s)(5992KiB/81086msec) clat (msec): min=3, max=1339, avg=24.80, stdev=37.93 lat (msec): min=3, max=1339, avg=24.80, stdev=37.93 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 10], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 35], 90.00th=[ 48], 95.00th=[ 58], | 99.00th=[ 80], 99.50th=[ 94], 99.90th=[ 116], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 336, per=25.26%, avg=74.26, stdev=48.94, samples=159 iops : min= 1, max= 84, avg=18.12, stdev=12.31, samples=159 write: IOPS=19, BW=77.6KiB/s (79.5kB/s)(6296KiB/81086msec); 0 zone resets clat (msec): min=4, max=146, avg=27.75, stdev=18.46 lat (msec): min=4, max=146, avg=27.75, stdev=18.46 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 42], 90.00th=[ 54], 95.00th=[ 63], | 99.00th=[ 86], 99.50th=[ 104], 99.90th=[ 126], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 15, max= 336, per=25.53%, avg=78.65, stdev=54.21, samples=158 iops : min= 3, max= 84, avg=19.22, stdev=13.67, samples=158 lat (msec) : 4=0.16%, 10=19.01%, 20=26.76%, 50=43.68%, 100=9.96% lat (msec) : 250=0.39%, 2000=0.03% cpu : usr=0.07%, sys=16.14%, ctx=7922, 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=187892: Wed Jul 8 10:09:51 2026 read: IOPS=18, BW=72.0KiB/s (74.7kB/s)(5940KiB/81411msec) clat (msec): min=3, max=1280, avg=24.45, stdev=36.59 lat (msec): min=3, max=1280, avg=24.45, stdev=36.59 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 10], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 36], 90.00th=[ 47], 95.00th=[ 58], | 99.00th=[ 81], 99.50th=[ 85], 99.90th=[ 104], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 344, per=25.05%, avg=73.65, stdev=52.03, samples=160 iops : min= 1, max= 86, avg=17.97, stdev=13.09, samples=160 write: IOPS=19, BW=77.0KiB/s (79.8kB/s)(6348KiB/81411msec); 0 zone resets clat (msec): min=5, max=109, avg=28.27, stdev=17.78 lat (msec): min=5, max=109, avg=28.27, stdev=17.78 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 53], 95.00th=[ 62], | 99.00th=[ 85], 99.50th=[ 92], 99.90th=[ 109], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 15, max= 344, per=25.55%, avg=78.70, stdev=52.40, samples=160 iops : min= 3, max= 86, avg=19.23, stdev=13.23, samples=160 lat (msec) : 4=0.13%, 10=18.91%, 20=25.81%, 50=44.76%, 100=10.19% lat (msec) : 250=0.16%, 2000=0.03% cpu : usr=0.07%, sys=16.02%, ctx=7862, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187893: Wed Jul 8 10:09:51 2026 read: IOPS=18, BW=73.0KiB/s (75.8kB/s)(6028KiB/81478msec) clat (msec): min=2, max=124, avg=23.38, stdev=16.67 lat (msec): min=2, max=124, avg=23.38, stdev=16.67 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 6], 10.00th=[ 6], 20.00th=[ 9], | 30.00th=[ 13], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 29], 80.00th=[ 36], 90.00th=[ 49], 95.00th=[ 57], | 99.00th=[ 75], 99.50th=[ 82], 99.90th=[ 111], 99.95th=[ 125], | 99.99th=[ 125] bw ( KiB/s): min= 7, max= 344, per=25.32%, avg=74.45, stdev=56.01, samples=160 iops : min= 1, max= 86, avg=18.17, stdev=14.10, samples=160 write: IOPS=19, BW=76.8KiB/s (78.7kB/s)(6260KiB/81478msec); 0 zone resets clat (msec): min=4, max=1288, avg=29.40, stdev=37.04 lat (msec): min=4, max=1288, avg=29.40, stdev=37.04 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 12], | 30.00th=[ 16], 40.00th=[ 20], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 44], 90.00th=[ 55], 95.00th=[ 65], | 99.00th=[ 89], 99.50th=[ 103], 99.90th=[ 126], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 23, max= 296, per=25.08%, avg=77.25, stdev=52.46, samples=160 iops : min= 5, max= 74, avg=18.87, stdev=13.23, samples=160 lat (msec) : 4=0.52%, 10=20.08%, 20=26.14%, 50=41.93%, 100=11.00% lat (msec) : 250=0.29%, 2000=0.03% cpu : usr=0.07%, sys=15.85%, ctx=7759, 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=187894: Wed Jul 8 10:09:51 2026 read: IOPS=18, BW=74.4KiB/s (76.2kB/s)(6052KiB/81299msec) clat (msec): min=3, max=104, avg=23.87, stdev=16.57 lat (msec): min=3, max=104, avg=23.87, stdev=16.57 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 6], 10.00th=[ 7], 20.00th=[ 10], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 29], 80.00th=[ 36], 90.00th=[ 47], 95.00th=[ 58], | 99.00th=[ 77], 99.50th=[ 90], 99.90th=[ 102], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 15, max= 328, per=25.65%, avg=75.41, stdev=49.17, samples=157 iops : min= 3, max= 82, avg=18.41, stdev=12.40, samples=157 write: IOPS=19, BW=76.7KiB/s (78.5kB/s)(6236KiB/81299msec); 0 zone resets clat (msec): min=5, max=1288, avg=28.83, stdev=36.74 lat (msec): min=5, max=1288, avg=28.83, stdev=36.74 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 35], 80.00th=[ 42], 90.00th=[ 52], 95.00th=[ 63], | 99.00th=[ 87], 99.50th=[ 99], 99.90th=[ 150], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 15, max= 344, per=24.99%, avg=76.98, stdev=53.36, samples=159 iops : min= 3, max= 86, avg=18.80, stdev=13.44, samples=159 lat (msec) : 4=0.26%, 10=18.82%, 20=26.60%, 50=44.63%, 100=9.41% lat (msec) : 250=0.26%, 2000=0.03% cpu : usr=0.08%, sys=16.03%, ctx=7868, 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=295KiB/s (302kB/s), 72.0KiB/s-74.4KiB/s (74.7kB/s-76.2kB/s), io=23.4MiB (24.6MB), run=81086-81478msec WRITE: bw=309KiB/s (316kB/s), 76.7KiB/s-77.0KiB/s (78.5kB/s-79.8kB/s), io=24.6MiB (25.7MB), run=81086-81478msec 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=187920: Wed Jul 8 10:10:13 2026 read: IOPS=22, BW=365KiB/s (374kB/s)(5920KiB/16197msec) clat (usec): min=61, max=83390, avg=22224.66, stdev=11351.81 lat (usec): min=61, max=83390, avg=22225.23, stdev=11351.83 clat percentiles (usec): | 1.00th=[ 97], 5.00th=[ 7701], 10.00th=[10814], 20.00th=[13960], | 30.00th=[16581], 40.00th=[18744], 50.00th=[20841], 60.00th=[22938], | 70.00th=[25822], 80.00th=[29754], 90.00th=[35390], 95.00th=[43254], | 99.00th=[58459], 99.50th=[58983], 99.90th=[83362], 99.95th=[83362], | 99.99th=[83362] bw ( KiB/s): min= 158, max= 606, per=24.74%, avg=365.62, stdev=102.07, samples=32 iops : min= 9, max= 37, avg=22.25, stdev= 6.33, samples=32 write: IOPS=24, BW=393KiB/s (403kB/s)(6368KiB/16197msec); 0 zone resets clat (usec): min=1579, max=70451, avg=19720.03, stdev=12067.13 lat (usec): min=1580, max=70452, avg=19721.14, stdev=12067.22 clat percentiles (usec): | 1.00th=[ 2638], 5.00th=[ 4883], 10.00th=[ 5669], 20.00th=[ 9241], | 30.00th=[11994], 40.00th=[14091], 50.00th=[17433], 60.00th=[20317], | 70.00th=[25035], 80.00th=[29230], 90.00th=[36963], 95.00th=[42730], | 99.00th=[56361], 99.50th=[69731], 99.90th=[70779], 99.95th=[70779], | 99.99th=[70779] bw ( KiB/s): min= 127, max= 608, per=25.31%, avg=393.50, stdev=106.46, samples=32 iops : min= 7, max= 38, avg=24.00, stdev= 6.72, samples=32 lat (usec) : 100=0.52%, 250=1.56%, 500=0.26% lat (msec) : 2=0.39%, 4=0.91%, 10=11.85%, 20=36.20%, 50=46.48% lat (msec) : 100=1.82% cpu : usr=0.07%, sys=28.01%, ctx=3345, 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=187921: Wed Jul 8 10:10:13 2026 read: IOPS=22, BW=365KiB/s (374kB/s)(5744KiB/15739msec) clat (usec): min=63, max=69118, avg=22690.58, stdev=11407.75 lat (usec): min=64, max=69119, avg=22696.74, stdev=11410.14 clat percentiles (usec): | 1.00th=[ 112], 5.00th=[ 9241], 10.00th=[11076], 20.00th=[14222], | 30.00th=[16057], 40.00th=[18744], 50.00th=[20841], 60.00th=[23725], | 70.00th=[26346], 80.00th=[30016], 90.00th=[36963], 95.00th=[43254], | 99.00th=[61604], 99.50th=[67634], 99.90th=[68682], 99.95th=[68682], | 99.99th=[68682] bw ( KiB/s): min= 189, max= 542, per=24.59%, avg=363.48, stdev=101.26, samples=31 iops : min= 11, max= 33, avg=22.13, stdev= 6.33, samples=31 write: IOPS=25, BW=416KiB/s (426kB/s)(6544KiB/15739msec); 0 zone resets clat (usec): min=1180, max=78469, avg=18372.74, stdev=12362.58 lat (usec): min=1181, max=78470, avg=18373.80, stdev=12362.64 clat percentiles (usec): | 1.00th=[ 2114], 5.00th=[ 4817], 10.00th=[ 5735], 20.00th=[ 7635], | 30.00th=[10159], 40.00th=[12911], 50.00th=[15270], 60.00th=[18482], | 70.00th=[22414], 80.00th=[26608], 90.00th=[35390], 95.00th=[44303], | 99.00th=[55313], 99.50th=[65799], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 255, max= 702, per=26.66%, avg=414.58, stdev=103.84, samples=31 iops : min= 15, max= 43, avg=25.32, stdev= 6.56, samples=31 lat (usec) : 100=0.26%, 250=1.30% lat (msec) : 2=0.52%, 4=0.52%, 10=16.02%, 20=37.63%, 50=41.15% lat (msec) : 100=2.60% cpu : usr=0.06%, sys=29.17%, ctx=3158, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187922: Wed Jul 8 10:10:13 2026 read: IOPS=24, BW=391KiB/s (400kB/s)(6256KiB/16014msec) clat (usec): min=79, max=78689, avg=22196.82, stdev=11485.36 lat (usec): min=79, max=78690, avg=22197.48, stdev=11485.40 clat percentiles (usec): | 1.00th=[ 120], 5.00th=[ 7373], 10.00th=[11076], 20.00th=[14222], | 30.00th=[16450], 40.00th=[18744], 50.00th=[20317], 60.00th=[22414], | 70.00th=[25822], 80.00th=[28967], 90.00th=[35390], 95.00th=[42730], | 99.00th=[61604], 99.50th=[78119], 99.90th=[79168], 99.95th=[79168], | 99.99th=[79168] bw ( KiB/s): min= 158, max= 608, per=26.49%, avg=391.52, stdev=108.26, samples=31 iops : min= 9, max= 38, avg=23.87, stdev= 6.83, samples=31 write: IOPS=23, BW=377KiB/s (386kB/s)(6032KiB/16014msec); 0 zone resets clat (usec): min=1177, max=72663, avg=19306.72, stdev=11983.63 lat (usec): min=1177, max=72665, avg=19307.99, stdev=11983.88 clat percentiles (usec): | 1.00th=[ 2343], 5.00th=[ 5080], 10.00th=[ 5932], 20.00th=[ 8979], | 30.00th=[11731], 40.00th=[14091], 50.00th=[16909], 60.00th=[20055], | 70.00th=[23725], 80.00th=[27919], 90.00th=[35390], 95.00th=[42730], | 99.00th=[55837], 99.50th=[64750], 99.90th=[72877], 99.95th=[72877], | 99.99th=[72877] bw ( KiB/s): min= 159, max= 542, per=23.93%, avg=372.13, stdev=97.00, samples=31 iops : min= 9, max= 33, avg=22.68, stdev= 6.04, samples=31 lat (usec) : 100=0.26%, 250=1.69% lat (msec) : 2=0.52%, 4=0.65%, 10=12.63%, 20=38.15%, 50=43.75% lat (msec) : 100=2.34% cpu : usr=0.10%, sys=28.22%, ctx=3174, 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=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=187924: Wed Jul 8 10:10:13 2026 read: IOPS=23, BW=378KiB/s (387kB/s)(6032KiB/15973msec) clat (usec): min=88, max=74026, avg=22065.74, stdev=12097.37 lat (usec): min=88, max=74026, avg=22066.32, stdev=12097.40 clat percentiles (usec): | 1.00th=[ 95], 5.00th=[ 161], 10.00th=[10159], 20.00th=[13173], | 30.00th=[15664], 40.00th=[17957], 50.00th=[20841], 60.00th=[23462], | 70.00th=[26870], 80.00th=[30278], 90.00th=[38536], 95.00th=[45351], | 99.00th=[55837], 99.50th=[64226], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 222, max= 576, per=25.26%, avg=373.29, stdev=82.51, samples=31 iops : min= 13, max= 36, avg=22.74, stdev= 5.14, samples=31 write: IOPS=24, BW=392KiB/s (401kB/s)(6256KiB/15973msec); 0 zone resets clat (usec): min=1384, max=74354, avg=19512.68, stdev=12475.28 lat (usec): min=1385, max=74354, avg=19513.98, stdev=12475.32 clat percentiles (usec): | 1.00th=[ 2999], 5.00th=[ 4621], 10.00th=[ 5932], 20.00th=[ 8586], | 30.00th=[12125], 40.00th=[13960], 50.00th=[16909], 60.00th=[19792], | 70.00th=[23725], 80.00th=[28443], 90.00th=[35390], 95.00th=[44827], | 99.00th=[60031], 99.50th=[64226], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 127, max= 578, per=24.96%, avg=388.13, stdev=108.69, samples=31 iops : min= 7, max= 36, avg=23.68, stdev= 6.91, samples=31 lat (usec) : 100=0.78%, 250=2.60%, 500=0.26% lat (msec) : 2=0.13%, 4=1.17%, 10=11.33%, 20=38.15%, 50=42.58% lat (msec) : 100=2.99% cpu : usr=0.08%, sys=27.92%, ctx=3053, 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=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=1479KiB/s (1514kB/s), 365KiB/s-391KiB/s (374kB/s-400kB/s), io=23.4MiB (24.5MB), run=15739-16197msec WRITE: bw=1556KiB/s (1593kB/s), 377KiB/s-416KiB/s (386kB/s-426kB/s), io=24.6MiB (25.8MB), run=15739-16197msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187925: Wed Jul 8 10:10:15 2026 read: IOPS=20, BW=334KiB/s (342kB/s)(5920KiB/17716msec) clat (usec): min=4436, max=66072, avg=19945.81, stdev=13310.40 lat (usec): min=4436, max=66073, avg=19946.39, stdev=13310.44 clat percentiles (usec): | 1.00th=[ 5014], 5.00th=[ 5932], 10.00th=[ 6718], 20.00th=[ 8586], | 30.00th=[11207], 40.00th=[13304], 50.00th=[15664], 60.00th=[18482], | 70.00th=[23462], 80.00th=[29754], 90.00th=[41681], 95.00th=[50594], | 99.00th=[57410], 99.50th=[64750], 99.90th=[66323], 99.95th=[66323], | 99.99th=[66323] bw ( KiB/s): min= 159, max= 960, per=24.55%, avg=331.17, stdev=182.53, samples=35 iops : min= 9, max= 60, avg=20.20, stdev=11.51, samples=35 write: IOPS=22, BW=359KiB/s (368kB/s)(6368KiB/17716msec); 0 zone resets clat (usec): min=5809, max=97614, avg=25715.64, stdev=16796.29 lat (usec): min=5810, max=97616, avg=25716.93, stdev=16796.40 clat percentiles (usec): | 1.00th=[ 6194], 5.00th=[ 7635], 10.00th=[ 8455], 20.00th=[10421], | 30.00th=[13566], 40.00th=[17171], 50.00th=[21365], 60.00th=[27132], | 70.00th=[31065], 80.00th=[39584], 90.00th=[49546], 95.00th=[56886], | 99.00th=[86508], 99.50th=[90702], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 127, max= 1149, per=25.23%, avg=357.94, stdev=208.59, samples=35 iops : min= 7, max= 71, avg=21.89, stdev=13.10, samples=35 lat (msec) : 10=21.74%, 20=33.46%, 50=37.50%, 100=7.29% cpu : usr=0.06%, sys=14.54%, ctx=1805, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187926: Wed Jul 8 10:10:15 2026 read: IOPS=20, BW=324KiB/s (331kB/s)(5744KiB/17747msec) clat (usec): min=3034, max=91249, avg=21057.82, stdev=15195.31 lat (usec): min=3034, max=91250, avg=21058.68, stdev=15195.33 clat percentiles (usec): | 1.00th=[ 3458], 5.00th=[ 5800], 10.00th=[ 6587], 20.00th=[ 8356], | 30.00th=[11469], 40.00th=[13435], 50.00th=[16188], 60.00th=[20055], | 70.00th=[25822], 80.00th=[31589], 90.00th=[42206], 95.00th=[51119], | 99.00th=[78119], 99.50th=[84411], 99.90th=[91751], 99.95th=[91751], | 99.99th=[91751] bw ( KiB/s): min= 96, max= 896, per=23.71%, avg=319.83, stdev=169.63, samples=35 iops : min= 6, max= 56, avg=19.49, stdev=10.69, samples=35 write: IOPS=23, BW=369KiB/s (378kB/s)(6544KiB/17747msec); 0 zone resets clat (usec): min=4696, max=85442, avg=24684.70, stdev=16150.65 lat (usec): min=4697, max=85443, avg=24686.04, stdev=16150.84 clat percentiles (usec): | 1.00th=[ 6063], 5.00th=[ 7898], 10.00th=[ 8455], 20.00th=[10028], | 30.00th=[13042], 40.00th=[15795], 50.00th=[20579], 60.00th=[25035], | 70.00th=[30540], 80.00th=[37487], 90.00th=[48497], 95.00th=[56361], | 99.00th=[74974], 99.50th=[80217], 99.90th=[85459], 99.95th=[85459], | 99.99th=[85459] bw ( KiB/s): min= 158, max= 1213, per=25.61%, avg=363.40, stdev=231.57, samples=35 iops : min= 9, max= 75, avg=22.23, stdev=14.54, samples=35 lat (msec) : 4=0.52%, 10=21.74%, 20=31.25%, 50=39.06%, 100=7.42% cpu : usr=0.06%, sys=14.30%, ctx=1799, 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=187927: Wed Jul 8 10:10:15 2026 read: IOPS=22, BW=354KiB/s (362kB/s)(6256KiB/17696msec) clat (usec): min=4216, max=94848, avg=21066.59, stdev=16070.75 lat (usec): min=4217, max=94849, avg=21067.21, stdev=16070.79 clat percentiles (usec): | 1.00th=[ 4883], 5.00th=[ 5866], 10.00th=[ 6390], 20.00th=[ 7963], | 30.00th=[11207], 40.00th=[13304], 50.00th=[15533], 60.00th=[18220], | 70.00th=[23462], 80.00th=[32637], 90.00th=[44827], 95.00th=[52691], | 99.00th=[81265], 99.50th=[84411], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 127, max= 1280, per=26.32%, avg=355.09, stdev=235.62, samples=35 iops : min= 7, max= 80, avg=21.69, stdev=14.82, samples=35 write: IOPS=21, BW=341KiB/s (349kB/s)(6032KiB/17696msec); 0 zone resets clat (msec): min=6, max=103, avg=24.98, stdev=15.64 lat (msec): min=6, max=103, avg=24.98, stdev=15.64 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 32], 80.00th=[ 37], 90.00th=[ 47], 95.00th=[ 54], | 99.00th=[ 74], 99.50th=[ 90], 99.90th=[ 104], 99.95th=[ 104], | 99.99th=[ 104] bw ( KiB/s): min= 95, max= 990, per=23.85%, avg=338.40, stdev=192.69, samples=35 iops : min= 5, max= 61, avg=20.66, stdev=12.11, samples=35 lat (msec) : 10=21.35%, 20=34.11%, 50=36.85%, 100=7.55%, 250=0.13% cpu : usr=0.05%, sys=14.43%, ctx=1851, 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=187928: Wed Jul 8 10:10:15 2026 read: IOPS=21, BW=341KiB/s (349kB/s)(6032KiB/17696msec) clat (usec): min=4322, max=89100, avg=21164.73, stdev=15760.56 lat (usec): min=4323, max=89101, avg=21165.31, stdev=15760.61 clat percentiles (usec): | 1.00th=[ 5080], 5.00th=[ 5866], 10.00th=[ 6587], 20.00th=[ 8094], | 30.00th=[10814], 40.00th=[13566], 50.00th=[16188], 60.00th=[19006], | 70.00th=[24511], 80.00th=[32113], 90.00th=[44303], 95.00th=[54264], | 99.00th=[76022], 99.50th=[79168], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 127, max= 1085, per=25.13%, avg=338.94, stdev=206.80, samples=35 iops : min= 7, max= 67, avg=20.69, stdev=12.99, samples=35 write: IOPS=22, BW=354KiB/s (362kB/s)(6256KiB/17696msec); 0 zone resets clat (usec): min=5818, max=83886, avg=24486.12, stdev=14908.90 lat (usec): min=5819, max=83888, avg=24487.62, stdev=14909.00 clat percentiles (usec): | 1.00th=[ 6521], 5.00th=[ 7963], 10.00th=[ 8717], 20.00th=[11076], | 30.00th=[14091], 40.00th=[16909], 50.00th=[20317], 60.00th=[24773], | 70.00th=[30540], 80.00th=[37487], 90.00th=[45876], 95.00th=[53216], | 99.00th=[69731], 99.50th=[79168], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 159, max= 1024, per=24.97%, avg=354.37, stdev=189.97, samples=35 iops : min= 9, max= 64, avg=21.66, stdev=11.97, samples=35 lat (msec) : 10=21.22%, 20=34.38%, 50=37.50%, 100=6.90% cpu : usr=0.07%, sys=14.46%, ctx=1828, 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=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=1350KiB/s (1382kB/s), 324KiB/s-354KiB/s (331kB/s-362kB/s), io=23.4MiB (24.5MB), run=17696-17747msec WRITE: bw=1420KiB/s (1454kB/s), 341KiB/s-369KiB/s (349kB/s-378kB/s), io=24.6MiB (25.8MB), run=17696-17747msec 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=187936: Wed Jul 8 10:10:24 2026 read: IOPS=2, BW=2680KiB/s (2744kB/s)(7168KiB/2675msec) clat (usec): min=494, max=463747, avg=180005.14, stdev=141829.87 lat (usec): min=495, max=463748, avg=180006.37, stdev=141829.92 clat percentiles (usec): | 1.00th=[ 494], 5.00th=[ 494], 10.00th=[ 494], 20.00th=[116917], | 30.00th=[130548], 40.00th=[130548], 50.00th=[152044], 60.00th=[187696], | 70.00th=[187696], 80.00th=[208667], 90.00th=[463471], 95.00th=[463471], | 99.00th=[463471], 99.50th=[463471], 99.90th=[463471], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 1973, max= 5180, per=44.59%, avg=2803.00, stdev=1584.96, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=1, BW=1914KiB/s (1960kB/s)(5120KiB/2675msec); 0 zone resets clat (msec): min=174, max=387, avg=275.53, stdev=79.84 lat (msec): min=174, max=387, avg=275.58, stdev=79.83 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 2048, max= 6047, per=45.99%, avg=4047.50, stdev=2827.72, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (usec) : 500=8.33% lat (msec) : 250=58.33%, 500=33.33% cpu : usr=0.00%, sys=48.92%, ctx=753, 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=187937: Wed Jul 8 10:10:24 2026 read: IOPS=0, BW=629KiB/s (644kB/s)(2048KiB/3258msec) clat (usec): min=609, max=135448, avg=68028.94, stdev=95345.95 lat (usec): min=610, max=135450, avg=68030.37, stdev=95345.92 clat percentiles (usec): | 1.00th=[ 611], 5.00th=[ 611], 10.00th=[ 611], 20.00th=[ 611], | 30.00th=[ 611], 40.00th=[ 611], 50.00th=[ 611], 60.00th=[135267], | 70.00th=[135267], 80.00th=[135267], 90.00th=[135267], 95.00th=[135267], | 99.00th=[135267], 99.50th=[135267], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 1723, max= 2015, per=29.73%, avg=1869.00, stdev=206.48, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3143KiB/s (3218kB/s)(10.0MiB/3258msec); 0 zone resets clat (msec): min=116, max=672, avg=306.66, stdev=178.57 lat (msec): min=116, max=672, avg=306.73, stdev=178.55 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 116], 10.00th=[ 116], 20.00th=[ 157], | 30.00th=[ 184], 40.00th=[ 186], 50.00th=[ 215], 60.00th=[ 255], | 70.00th=[ 347], 80.00th=[ 464], 90.00th=[ 472], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1973, max= 6144, per=41.50%, avg=3652.40, stdev=2263.17, samples=5 iops : min= 1, max= 6, avg= 2.80, stdev= 2.49, samples=5 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.06%, sys=45.47%, ctx=311, 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=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=187939: Wed Jul 8 10:10:24 2026 read: IOPS=2, BW=2328KiB/s (2384kB/s)(6144KiB/2639msec) clat (usec): min=364, max=339977, avg=163552.94, stdev=143850.93 lat (usec): min=365, max=339978, avg=163553.86, stdev=143851.07 clat percentiles (usec): | 1.00th=[ 367], 5.00th=[ 367], 10.00th=[ 367], 20.00th=[ 412], | 30.00th=[ 412], 40.00th=[160433], 50.00th=[160433], 60.00th=[179307], | 70.00th=[299893], 80.00th=[299893], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 3946, max= 6035, per=79.39%, avg=4990.50, stdev=1477.15, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=2, BW=2328KiB/s (2384kB/s)(6144KiB/2639msec); 0 zone resets clat (msec): min=126, max=609, avg=268.21, stdev=177.31 lat (msec): min=126, max=609, avg=268.25, stdev=177.32 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 226], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 2015, max= 4023, per=32.76%, avg=2883.25, stdev=1011.33, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 lat (usec) : 500=16.67% lat (msec) : 250=50.00%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=45.22%, ctx=297, 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=187940: Wed Jul 8 10:10:24 2026 read: IOPS=1, BW=1836KiB/s (1880kB/s)(5120KiB/2789msec) clat (usec): min=631, max=275688, avg=128432.78, stdev=122909.63 lat (usec): min=631, max=275689, avg=128433.86, stdev=122909.55 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[ 635], | 30.00th=[ 635], 40.00th=[ 635], 50.00th=[173016], 60.00th=[173016], | 70.00th=[191890], 80.00th=[191890], 90.00th=[274727], 95.00th=[274727], | 99.00th=[274727], 99.50th=[274727], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 3946, max= 4031, per=63.45%, avg=3988.50, stdev=60.10, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2570KiB/s (2632kB/s)(7168KiB/2789msec); 0 zone resets clat (msec): min=160, max=477, avg=304.95, stdev=130.36 lat (msec): min=160, max=477, avg=305.01, stdev=130.37 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 271], 60.00th=[ 384], | 70.00th=[ 384], 80.00th=[ 447], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1723, max= 4096, per=33.57%, avg=2953.75, stdev=1281.23, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 750=16.67% lat (msec) : 250=41.67%, 500=41.67% cpu : usr=0.00%, sys=42.32%, ctx=280, 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=6286KiB/s (6437kB/s), 629KiB/s-2680KiB/s (644kB/s-2744kB/s), io=20.0MiB (20.0MB), run=2639-3258msec WRITE: bw=8800KiB/s (9012kB/s), 1914KiB/s-3143KiB/s (1960kB/s-3218kB/s), io=28.0MiB (29.4MB), run=2639-3258msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187941: Wed Jul 8 10:10:24 2026 read: IOPS=2, BW=2493KiB/s (2553kB/s)(7168KiB/2875msec) clat (msec): min=60, max=641, avg=177.16, stdev=206.97 lat (msec): min=60, max=641, avg=177.16, stdev=206.97 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 70], | 30.00th=[ 78], 40.00th=[ 78], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 136], 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= 1712, max= 4071, per=48.53%, avg=2878.50, stdev=1171.85, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1781KiB/s (1824kB/s)(5120KiB/2875msec); 0 zone resets clat (msec): min=184, max=437, avg=313.51, stdev=90.20 lat (msec): min=184, max=437, avg=313.58, stdev=90.20 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 184], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 334], 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= 2035, max= 3984, per=32.39%, avg=2689.00, stdev=1121.52, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 100=25.00%, 250=33.33%, 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=24.22%, ctx=161, 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=187942: Wed Jul 8 10:10:24 2026 read: IOPS=0, BW=593KiB/s (607kB/s)(2048KiB/3453msec) clat (msec): min=69, max=575, avg=322.85, stdev=357.99 lat (msec): min=69, max=575, avg=322.85, stdev=357.99 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 70], | 30.00th=[ 70], 40.00th=[ 70], 50.00th=[ 70], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 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= 1841, max= 1992, per=32.31%, avg=1916.50, stdev=106.77, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2966KiB/s (3037kB/s)(10.0MiB/3453msec); 0 zone resets clat (msec): min=63, max=696, avg=274.10, stdev=203.30 lat (msec): min=63, max=696, avg=274.18, stdev=203.30 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 94], | 30.00th=[ 126], 40.00th=[ 136], 50.00th=[ 142], 60.00th=[ 296], | 70.00th=[ 313], 80.00th=[ 414], 90.00th=[ 464], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1841, max= 4096, per=42.13%, avg=3498.00, stdev=1105.71, samples=4 iops : min= 1, max= 4, avg= 2.75, stdev= 1.26, samples=4 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=16.67% cpu : usr=0.03%, sys=19.73%, ctx=199, 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=187943: Wed Jul 8 10:10:24 2026 read: IOPS=2, BW=2078KiB/s (2128kB/s)(6144KiB/2957msec) clat (msec): min=50, max=181, avg=97.25, stdev=52.41 lat (msec): min=50, max=181, avg=97.25, stdev=52.41 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 51], 10.00th=[ 51], 20.00th=[ 61], | 30.00th=[ 61], 40.00th=[ 61], 50.00th=[ 61], 60.00th=[ 93], | 70.00th=[ 138], 80.00th=[ 138], 90.00th=[ 182], 95.00th=[ 182], | 99.00th=[ 182], 99.50th=[ 182], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 4071, max= 6144, per=86.12%, avg=5107.50, stdev=1465.83, samples=2 iops : min= 3, max= 6, avg= 4.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2078KiB/s (2128kB/s)(6144KiB/2957msec); 0 zone resets clat (msec): min=183, max=605, avg=385.42, stdev=182.22 lat (msec): min=183, max=605, avg=385.60, stdev=182.33 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1841, max= 4071, per=29.97%, avg=2488.00, stdev=1058.95, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=33.33%, 250=33.33%, 500=8.33%, 750=25.00% cpu : usr=0.03%, sys=17.42%, ctx=354, 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=187944: Wed Jul 8 10:10:24 2026 read: IOPS=1, BW=1488KiB/s (1524kB/s)(5120KiB/3441msec) clat (msec): min=43, max=721, avg=218.55, stdev=284.91 lat (msec): min=43, max=721, avg=218.55, stdev=284.91 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 44], 10.00th=[ 44], 20.00th=[ 44], | 30.00th=[ 55], 40.00th=[ 55], 50.00th=[ 115], 60.00th=[ 115], | 70.00th=[ 159], 80.00th=[ 159], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1992, max= 4096, per=45.73%, avg=2712.00, stdev=1198.91, samples=3 iops : min= 1, max= 4, avg= 2.33, stdev= 1.53, samples=3 write: IOPS=2, BW=2083KiB/s (2133kB/s)(7168KiB/3441msec); 0 zone resets clat (msec): min=104, max=639, avg=332.69, stdev=228.93 lat (msec): min=104, max=639, avg=332.76, stdev=228.91 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 113], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 226], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 625], 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= 1841, max= 3984, per=31.55%, avg=2620.00, stdev=1185.23, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=8.33%, 100=8.33%, 250=50.00%, 500=8.33%, 750=25.00% cpu : usr=0.00%, sys=18.98%, ctx=109, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5931KiB/s (6073kB/s), 593KiB/s-2493KiB/s (607kB/s-2553kB/s), io=20.0MiB (20.0MB), run=2875-3453msec WRITE: bw=8304KiB/s (8503kB/s), 1781KiB/s-2966KiB/s (1824kB/s-3037kB/s), io=28.0MiB (29.4MB), run=2875-3453msec 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=187950: Wed Jul 8 10:10:33 2026 read: IOPS=2, BW=11.8MiB/s (12.3MB/s)(12.0MiB/1019msec) clat (msec): min=144, max=572, avg=324.05, stdev=222.37 lat (msec): min=144, max=572, avg=324.06, stdev=222.37 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 575], 80.00th=[ 575], 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=15058, max=15058, per=100.00%, avg=15058.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=27.11%, ctx=97, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=187951: Wed Jul 8 10:10:33 2026 read: IOPS=0, BW=1907KiB/s (1953kB/s)(4096KiB/2148msec) clat (nsec): min=638233k, max=638233k, avg=638233449.00, stdev= 0.00 lat (nsec): min=638235k, max=638235k, avg=638234514.00, 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= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3814KiB/s (3905kB/s)(8192KiB/2148msec); 0 zone resets clat (msec): min=161, max=1274, avg=717.83, stdev=786.57 lat (msec): min=161, max=1274, avg=718.12, stdev=786.55 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 163], 50.00th=[ 163], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8192, max= 8192, per=53.70%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.76%, ctx=71, 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=187952: Wed Jul 8 10:10:33 2026 write: IOPS=1, BW=6533KiB/s (6689kB/s)(12.0MiB/1881msec); 0 zone resets clat (msec): min=221, max=1117, avg=604.40, stdev=461.91 lat (msec): min=221, max=1117, avg=604.66, stdev=462.00 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 222], | 30.00th=[ 222], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8192, max= 8192, per=53.70%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=19.41%, ctx=76, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187953: Wed Jul 8 10:10:33 2026 write: IOPS=1, BW=7169KiB/s (7341kB/s)(12.0MiB/1714msec); 0 zone resets clat (msec): min=239, max=1094, avg=553.42, stdev=470.53 lat (msec): min=240, max=1094, avg=553.78, stdev=470.45 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 326], | 70.00th=[ 1099], 80.00th=[ 1099], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7380, max= 8110, per=50.77%, avg=7745.00, stdev=516.19, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=16.35%, ctx=75, 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=7628KiB/s (7811kB/s), 1907KiB/s-11.8MiB/s (1953kB/s-12.3MB/s), io=16.0MiB (16.8MB), run=1019-2148msec WRITE: bw=14.9MiB/s (15.6MB/s), 3814KiB/s-7169KiB/s (3905kB/s-7341kB/s), io=32.0MiB (33.6MB), run=1714-2148msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187955: Wed Jul 8 10:10:33 2026 read: IOPS=1, BW=8132KiB/s (8328kB/s)(12.0MiB/1511msec) clat (msec): min=434, max=524, avg=489.31, stdev=47.90 lat (msec): min=434, max=524, avg=489.31, stdev=47.90 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 510], 50.00th=[ 510], 60.00th=[ 510], | 70.00th=[ 527], 80.00th=[ 527], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min=16318, max=16318, per=100.00%, avg=16318.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=46.23%, ctx=3048, 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=187956: Wed Jul 8 10:10:33 2026 read: IOPS=0, BW=2276KiB/s (2330kB/s)(4096KiB/1800msec) clat (nsec): min=533566k, max=533566k, avg=533566124.00, stdev= 0.00 lat (nsec): min=533649k, max=533649k, avg=533649353.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 535], 5.00th=[ 535], 10.00th=[ 535], 20.00th=[ 535], | 30.00th=[ 535], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 535], 95.00th=[ 535], | 99.00th=[ 535], 99.50th=[ 535], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 8159, max= 8159, per=89.64%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4551KiB/s (4660kB/s)(8192KiB/1800msec); 0 zone resets clat (msec): min=443, max=782, avg=613.17, stdev=240.01 lat (msec): min=443, max=783, avg=613.47, stdev=240.05 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 443], 50.00th=[ 443], 60.00th=[ 785], | 70.00th=[ 785], 80.00th=[ 785], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 8192, max= 8192, per=50.80%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.11%, sys=25.29%, ctx=1050, 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=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=187957: Wed Jul 8 10:10:33 2026 write: IOPS=1, BW=6047KiB/s (6192kB/s)(12.0MiB/2032msec); 0 zone resets clat (msec): min=126, max=1326, avg=662.20, stdev=610.06 lat (msec): min=127, max=1326, avg=662.49, stdev=610.02 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 127], | 30.00th=[ 127], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 1334], 80.00th=[ 1334], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 8192, max= 8192, per=50.80%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=12.95%, ctx=72, 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=187958: Wed Jul 8 10:10:33 2026 write: IOPS=1, BW=6596KiB/s (6754kB/s)(12.0MiB/1863msec); 0 zone resets clat (msec): min=440, max=922, avg=617.59, stdev=264.90 lat (msec): min=440, max=922, avg=617.94, stdev=264.90 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 919], 80.00th=[ 919], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7366, max= 8159, per=48.14%, avg=7762.50, stdev=560.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.05%, sys=16.22%, ctx=96, 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=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=9102KiB/s (9321kB/s), 2276KiB/s-8132KiB/s (2330kB/s-8328kB/s), io=16.0MiB (16.8MB), run=1511-1800msec WRITE: bw=15.7MiB/s (16.5MB/s), 4551KiB/s-6596KiB/s (4660kB/s-6754kB/s), io=32.0MiB (33.6MB), run=1800-2032msec