== sanity test 398b: DIO and buffer IO race ============== 11:10:26 (1782227426) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.93951 s, 8.5 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179156: Tue Jun 23 11:12:58 2026 read: IOPS=11, BW=45.0KiB/s (47.1kB/s)(5992KiB/130270msec) clat (usec): min=37, max=1082.0k, avg=48399.79, stdev=41424.86 lat (usec): min=38, max=1082.0k, avg=48401.52, stdev=41424.82 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 13304], 10.00th=[ 18744], | 20.00th=[ 25560], 30.00th=[ 30016], 40.00th=[ 34866], | 50.00th=[ 41157], 60.00th=[ 48497], 70.00th=[ 55837], | 80.00th=[ 67634], 90.00th=[ 84411], 95.00th=[ 103285], | 99.00th=[ 164627], 99.50th=[ 181404], 99.90th=[ 312476], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 6, max= 95, per=25.02%, avg=45.53, stdev=17.78, samples=256 iops : min= 1, max= 23, avg=10.74, stdev= 4.49, samples=256 write: IOPS=12, BW=48.3KiB/s (49.5kB/s)(6296KiB/130270msec); 0 zone resets clat (usec): min=1155, max=233184, avg=36509.79, stdev=34989.04 lat (usec): min=1157, max=233186, avg=36515.58, stdev=34986.46 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1713], 10.00th=[ 2606], 20.00th=[ 5276], | 30.00th=[ 10028], 40.00th=[ 19530], 50.00th=[ 27395], 60.00th=[ 36439], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 85459], 95.00th=[104334], | 99.00th=[147850], 99.50th=[175113], 99.90th=[217056], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 7, max= 158, per=25.30%, avg=48.32, stdev=21.22, samples=254 iops : min= 1, max= 39, avg=11.45, stdev= 5.35, samples=254 lat (usec) : 50=0.07%, 100=1.56%, 250=0.29%, 500=0.03% lat (msec) : 2=3.42%, 4=4.36%, 10=7.65%, 20=9.21%, 50=40.72% lat (msec) : 100=26.82%, 250=5.70%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=5.88%, ctx=7002, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179157: Tue Jun 23 11:12:58 2026 read: IOPS=11, BW=45.9KiB/s (47.0kB/s)(5940KiB/129343msec) clat (usec): min=44, max=228184, avg=48079.95, stdev=30070.62 lat (usec): min=44, max=228186, avg=48083.82, stdev=30070.38 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 14091], 10.00th=[ 19006], 20.00th=[ 24511], | 30.00th=[ 30540], 40.00th=[ 36439], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[101188], | 99.00th=[152044], 99.50th=[175113], 99.90th=[212861], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 6, max= 112, per=25.05%, avg=45.58, stdev=18.29, samples=254 iops : min= 1, max= 28, avg=10.76, stdev= 4.59, samples=254 write: IOPS=12, BW=49.1KiB/s (50.3kB/s)(6348KiB/129343msec); 0 zone resets clat (usec): min=1170, max=1206.2k, avg=36371.60, stdev=45818.08 lat (usec): min=1171, max=1206.2k, avg=36374.00, stdev=45817.87 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1631], 10.00th=[ 2802], | 20.00th=[ 5276], 30.00th=[ 8586], 40.00th=[ 16319], | 50.00th=[ 25560], 60.00th=[ 34866], 70.00th=[ 45876], | 80.00th=[ 63177], 90.00th=[ 86508], 95.00th=[ 102237], | 99.00th=[ 143655], 99.50th=[ 170918], 99.90th=[ 254804], | 99.95th=[1199571], 99.99th=[1199571] bw ( KiB/s): min= 6, max= 127, per=25.56%, avg=48.83, stdev=21.65, samples=253 iops : min= 1, max= 31, avg=11.58, stdev= 5.47, samples=253 lat (usec) : 50=0.03%, 100=1.20%, 250=0.39%, 500=0.03% lat (msec) : 2=3.52%, 4=4.39%, 10=8.82%, 20=9.57%, 50=39.32% lat (msec) : 100=27.18%, 250=5.47%, 500=0.03%, 2000=0.03% cpu : usr=0.09%, sys=5.97%, ctx=6998, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179158: Tue Jun 23 11:12:58 2026 read: IOPS=11, BW=46.6KiB/s (47.7kB/s)(6028KiB/129338msec) clat (usec): min=30, max=262061, avg=47430.07, stdev=31628.32 lat (usec): min=30, max=262063, avg=47435.49, stdev=31627.47 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 10028], 10.00th=[ 17957], 20.00th=[ 24511], | 30.00th=[ 30016], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 47973], | 70.00th=[ 55313], 80.00th=[ 66323], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[158335], 99.50th=[212861], 99.90th=[258999], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 7, max= 119, per=25.63%, avg=46.65, stdev=18.57, samples=252 iops : min= 1, max= 29, avg=11.03, stdev= 4.68, samples=252 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(6260KiB/129338msec); 0 zone resets clat (usec): min=1147, max=1287.6k, avg=36799.94, stdev=48358.05 lat (usec): min=1148, max=1287.6k, avg=36805.06, stdev=48358.92 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1598], 10.00th=[ 2343], | 20.00th=[ 4817], 30.00th=[ 8717], 40.00th=[ 16057], | 50.00th=[ 26084], 60.00th=[ 35390], 70.00th=[ 45351], | 80.00th=[ 62653], 90.00th=[ 84411], 95.00th=[ 110625], | 99.00th=[ 160433], 99.50th=[ 181404], 99.90th=[ 250610], | 99.95th=[1283458], 99.99th=[1283458] bw ( KiB/s): min= 7, max= 119, per=25.27%, avg=48.26, stdev=21.87, samples=253 iops : min= 1, max= 29, avg=11.43, stdev= 5.50, samples=253 lat (usec) : 50=0.20%, 100=1.43%, 250=0.39%, 750=0.07% lat (msec) : 2=4.26%, 4=4.59%, 10=7.94%, 20=9.24%, 50=39.97% lat (msec) : 100=25.62%, 250=6.15%, 500=0.10%, 2000=0.03% cpu : usr=0.09%, sys=5.94%, ctx=7065, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179159: Tue Jun 23 11:12:58 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6052KiB/131377msec) clat (usec): min=46, max=270686, avg=47279.08, stdev=31013.40 lat (usec): min=47, max=270689, avg=47282.40, stdev=31014.17 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 13435], 10.00th=[ 18744], 20.00th=[ 24773], | 30.00th=[ 29492], 40.00th=[ 34866], 50.00th=[ 40633], 60.00th=[ 47973], | 70.00th=[ 56361], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[162530], 99.50th=[208667], 99.90th=[248513], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 88, per=25.27%, avg=45.99, stdev=16.33, samples=256 iops : min= 1, max= 22, avg=10.86, stdev= 4.11, samples=256 write: IOPS=11, BW=47.5KiB/s (48.6kB/s)(6236KiB/131377msec); 0 zone resets clat (usec): min=894, max=1289.6k, avg=38205.85, stdev=48946.67 lat (usec): min=895, max=1289.6k, avg=38211.42, stdev=48946.05 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1713], 10.00th=[ 2540], | 20.00th=[ 5407], 30.00th=[ 9896], 40.00th=[ 18482], | 50.00th=[ 27395], 60.00th=[ 38011], 70.00th=[ 48497], | 80.00th=[ 64750], 90.00th=[ 86508], 95.00th=[ 111674], | 99.00th=[ 162530], 99.50th=[ 196084], 99.90th=[ 295699], | 99.95th=[1283458], 99.99th=[1283458] bw ( KiB/s): min= 7, max= 119, per=24.81%, avg=47.39, stdev=19.37, samples=256 iops : min= 1, max= 29, avg=11.21, stdev= 4.88, samples=256 lat (usec) : 50=0.03%, 100=1.40%, 250=0.29%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=3.39%, 4=4.46%, 10=7.65%, 20=9.86%, 50=39.88% lat (msec) : 100=26.73%, 250=5.99%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=5.83%, ctx=7087, 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=183KiB/s (187kB/s), 45.9KiB/s-46.6KiB/s (47.0kB/s-47.7kB/s), io=23.4MiB (24.6MB), run=129338-131377msec WRITE: bw=191KiB/s (196kB/s), 47.5KiB/s-49.1KiB/s (48.6kB/s-50.3kB/s), io=24.6MiB (25.7MB), run=129338-131377msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179151: Tue Jun 23 11:13:33 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(5992KiB/164567msec) clat (msec): min=6, max=1105, avg=42.56, stdev=47.10 lat (msec): min=6, max=1105, avg=42.56, stdev=47.10 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 60], 90.00th=[ 94], 95.00th=[ 120], | 99.00th=[ 192], 99.50th=[ 218], 99.90th=[ 313], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 141, per=26.21%, avg=37.74, stdev=26.19, samples=309 iops : min= 1, max= 35, avg= 8.80, stdev= 6.58, samples=309 write: IOPS=9, BW=38.3KiB/s (39.2kB/s)(6296KiB/164567msec); 0 zone resets clat (msec): min=10, max=323, avg=63.75, stdev=45.66 lat (msec): min=10, max=323, avg=63.76, stdev=45.66 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 60], | 70.00th=[ 75], 80.00th=[ 95], 90.00th=[ 126], 95.00th=[ 157], | 99.00th=[ 224], 99.50th=[ 253], 99.90th=[ 321], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 119, per=25.83%, avg=39.01, stdev=24.38, samples=314 iops : min= 1, max= 29, avg= 9.12, stdev= 6.13, samples=314 lat (msec) : 10=1.86%, 20=16.05%, 50=45.35%, 100=23.47%, 250=12.89% lat (msec) : 500=0.36%, 2000=0.03% cpu : usr=0.06%, sys=2.45%, ctx=5142, 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=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=179152: Tue Jun 23 11:13:33 2026 read: IOPS=8, BW=35.7KiB/s (36.6kB/s)(5940KiB/166248msec) clat (msec): min=6, max=1235, avg=44.26, stdev=51.04 lat (msec): min=6, max=1235, avg=44.27, stdev=51.03 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 45], 80.00th=[ 65], 90.00th=[ 102], 95.00th=[ 130], | 99.00th=[ 203], 99.50th=[ 222], 99.90th=[ 309], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7, max= 135, per=25.65%, avg=36.94, stdev=26.19, samples=312 iops : min= 1, max= 33, avg= 8.60, stdev= 6.58, samples=312 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(6348KiB/166248msec); 0 zone resets clat (msec): min=11, max=332, avg=63.02, stdev=46.36 lat (msec): min=11, max=332, avg=63.03, stdev=46.36 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 74], 80.00th=[ 95], 90.00th=[ 126], 95.00th=[ 153], | 99.00th=[ 245], 99.50th=[ 268], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 7, max= 120, per=25.14%, avg=37.96, stdev=25.13, samples=324 iops : min= 1, max= 30, avg= 8.85, stdev= 6.32, samples=324 lat (msec) : 10=1.69%, 20=15.92%, 50=46.61%, 100=21.65%, 250=13.54% lat (msec) : 500=0.55%, 2000=0.03% cpu : usr=0.07%, sys=2.45%, ctx=5213, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179154: Tue Jun 23 11:13:33 2026 read: IOPS=9, BW=36.5KiB/s (37.4kB/s)(6028KiB/165190msec) clat (msec): min=6, max=281, avg=43.78, stdev=38.49 lat (msec): min=6, max=281, avg=43.78, stdev=38.49 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 96], 95.00th=[ 124], | 99.00th=[ 184], 99.50th=[ 209], 99.90th=[ 245], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 143, per=25.38%, avg=36.54, stdev=26.33, samples=320 iops : min= 1, max= 35, avg= 8.49, stdev= 6.62, samples=320 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6260KiB/165190msec); 0 zone resets clat (msec): min=11, max=1267, avg=63.12, stdev=54.57 lat (msec): min=11, max=1267, avg=63.13, stdev=54.57 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 59], | 70.00th=[ 72], 80.00th=[ 92], 90.00th=[ 121], 95.00th=[ 150], | 99.00th=[ 245], 99.50th=[ 279], 99.90th=[ 351], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 117, per=25.12%, avg=37.93, stdev=24.65, samples=320 iops : min= 1, max= 29, avg= 8.84, stdev= 6.20, samples=320 lat (msec) : 10=1.46%, 20=15.92%, 50=44.73%, 100=24.97%, 250=12.47% lat (msec) : 500=0.42%, 2000=0.03% cpu : usr=0.08%, sys=2.50%, ctx=5231, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179155: Tue Jun 23 11:13:33 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(6052KiB/166219msec) clat (msec): min=6, max=277, avg=43.60, stdev=40.90 lat (msec): min=6, max=277, avg=43.60, stdev=40.90 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 46], 80.00th=[ 66], 90.00th=[ 100], 95.00th=[ 132], | 99.00th=[ 199], 99.50th=[ 224], 99.90th=[ 249], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 7, max= 144, per=25.99%, avg=37.42, stdev=26.49, samples=313 iops : min= 1, max= 36, avg= 8.73, stdev= 6.67, samples=313 write: IOPS=9, BW=37.5KiB/s (38.4kB/s)(6236KiB/166219msec); 0 zone resets clat (msec): min=8, max=1265, avg=64.00, stdev=54.57 lat (msec): min=8, max=1265, avg=64.00, stdev=54.57 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 47], 60.00th=[ 60], | 70.00th=[ 74], 80.00th=[ 96], 90.00th=[ 124], 95.00th=[ 148], | 99.00th=[ 236], 99.50th=[ 292], 99.90th=[ 347], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 120, per=24.84%, avg=37.52, stdev=25.05, samples=322 iops : min= 1, max= 30, avg= 8.74, stdev= 6.29, samples=322 lat (msec) : 10=2.08%, 20=15.43%, 50=44.76%, 100=23.60%, 250=13.70% lat (msec) : 500=0.39%, 2000=0.03% cpu : usr=0.07%, sys=2.43%, ctx=5178, 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=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=144KiB/s (148kB/s), 35.7KiB/s-36.5KiB/s (36.6kB/s-37.4kB/s), io=23.4MiB (24.6MB), run=164567-166248msec WRITE: bw=151KiB/s (155kB/s), 37.5KiB/s-38.3KiB/s (38.4kB/s-39.2kB/s), io=24.6MiB (25.7MB), run=164567-166248msec 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=179197: Tue Jun 23 11:14:15 2026 read: IOPS=12, BW=203KiB/s (208kB/s)(5920KiB/29183msec) clat (usec): min=48, max=145115, avg=41775.03, stdev=24554.22 lat (usec): min=49, max=145116, avg=41777.63, stdev=24554.64 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 88], 10.00th=[ 12649], 20.00th=[ 23987], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 40109], 60.00th=[ 45351], | 70.00th=[ 51119], 80.00th=[ 58983], 90.00th=[ 68682], 95.00th=[ 79168], | 99.00th=[126354], 99.50th=[137364], 99.90th=[145753], 99.95th=[145753], | 99.99th=[145753] bw ( KiB/s): min= 64, max= 383, per=25.41%, avg=201.26, stdev=66.77, samples=57 iops : min= 4, max= 23, avg=11.81, stdev= 4.14, samples=57 write: IOPS=13, BW=218KiB/s (223kB/s)(6368KiB/29183msec); 0 zone resets clat (usec): min=1796, max=216844, avg=34068.39, stdev=31885.04 lat (usec): min=1798, max=216847, avg=34075.26, stdev=31881.78 clat percentiles (usec): | 1.00th=[ 1942], 5.00th=[ 2999], 10.00th=[ 4146], 20.00th=[ 6915], | 30.00th=[ 10552], 40.00th=[ 16450], 50.00th=[ 24511], 60.00th=[ 33817], | 70.00th=[ 43254], 80.00th=[ 56361], 90.00th=[ 82314], 95.00th=[ 92799], | 99.00th=[133694], 99.50th=[162530], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 382, per=26.14%, avg=218.00, stdev=72.70, samples=57 iops : min= 1, max= 23, avg=12.86, stdev= 4.61, samples=57 lat (usec) : 50=0.13%, 100=2.73%, 250=1.17%, 500=0.13% lat (msec) : 2=0.91%, 4=4.17%, 10=10.55%, 20=10.29%, 50=41.54% lat (msec) : 100=25.13%, 250=3.26% cpu : usr=0.10%, sys=7.98%, ctx=1920, 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=179198: Tue Jun 23 11:14:15 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(5744KiB/28419msec) clat (usec): min=52, max=181298, avg=44076.03, stdev=27086.38 lat (usec): min=52, max=181300, avg=44077.35, stdev=27086.38 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 133], 10.00th=[ 19006], 20.00th=[ 23725], | 30.00th=[ 28443], 40.00th=[ 33162], 50.00th=[ 40109], 60.00th=[ 45876], | 70.00th=[ 52691], 80.00th=[ 61080], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[145753], 99.50th=[162530], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 63, max= 381, per=25.36%, avg=200.88, stdev=73.58, samples=56 iops : min= 3, max= 23, avg=11.79, stdev= 4.58, samples=56 write: IOPS=14, BW=230KiB/s (236kB/s)(6544KiB/28419msec); 0 zone resets clat (usec): min=1786, max=162077, avg=30390.55, stdev=27958.15 lat (usec): min=1787, max=162079, avg=30393.66, stdev=27959.22 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 7], | 30.00th=[ 9], 40.00th=[ 16], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 39], 80.00th=[ 54], 90.00th=[ 74], 95.00th=[ 87], | 99.00th=[ 116], 99.50th=[ 130], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 63, max= 440, per=27.62%, avg=230.32, stdev=96.02, samples=56 iops : min= 3, max= 27, avg=13.64, stdev= 6.08, samples=56 lat (usec) : 100=2.08%, 250=0.39%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.39%, 4=5.73%, 10=10.94%, 20=9.11%, 50=44.14% lat (msec) : 100=24.22%, 250=2.73% cpu : usr=0.11%, sys=8.01%, ctx=1868, 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=179199: Tue Jun 23 11:14:15 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(6256KiB/30211msec) clat (usec): min=40, max=188424, avg=43113.05, stdev=26806.40 lat (usec): min=40, max=188424, avg=43120.34, stdev=26802.97 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 78], 10.00th=[ 17171], 20.00th=[ 25297], | 30.00th=[ 29492], 40.00th=[ 33162], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 51119], 80.00th=[ 58983], 90.00th=[ 72877], 95.00th=[ 95945], | 99.00th=[141558], 99.50th=[158335], 99.90th=[187696], 99.95th=[187696], | 99.99th=[187696] bw ( KiB/s): min= 63, max= 414, per=25.99%, avg=205.85, stdev=78.61, samples=59 iops : min= 3, max= 25, avg=12.10, stdev= 4.95, samples=59 write: IOPS=12, BW=200KiB/s (204kB/s)(6032KiB/30211msec); 0 zone resets clat (usec): min=1973, max=237317, avg=34980.04, stdev=33024.74 lat (usec): min=1975, max=237319, avg=34996.93, stdev=33023.96 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 4], 20.00th=[ 8], | 30.00th=[ 12], 40.00th=[ 18], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 81], 95.00th=[ 101], | 99.00th=[ 148], 99.50th=[ 161], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 384, per=23.51%, avg=196.08, stdev=81.03, samples=59 iops : min= 1, max= 24, avg=11.49, stdev= 5.11, samples=59 lat (usec) : 50=0.26%, 100=2.86%, 250=0.65%, 500=0.13% lat (msec) : 2=0.26%, 4=5.21%, 10=8.59%, 20=9.51%, 50=43.49% lat (msec) : 100=24.61%, 250=4.43% cpu : usr=0.07%, sys=7.37%, ctx=1970, 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=179200: Tue Jun 23 11:14:15 2026 read: IOPS=12, BW=205KiB/s (210kB/s)(6032KiB/29362msec) clat (usec): min=60, max=158156, avg=42011.08, stdev=25223.94 lat (usec): min=61, max=158158, avg=42012.58, stdev=25223.83 clat percentiles (usec): | 1.00th=[ 70], 5.00th=[ 85], 10.00th=[ 13960], 20.00th=[ 23725], | 30.00th=[ 29754], 40.00th=[ 34866], 50.00th=[ 38536], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 58983], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[119014], 99.50th=[149947], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 31, max= 349, per=25.73%, avg=203.76, stdev=63.45, samples=58 iops : min= 1, max= 21, avg=11.97, stdev= 4.03, samples=58 write: IOPS=13, BW=213KiB/s (218kB/s)(6256KiB/29362msec); 0 zone resets clat (usec): min=1772, max=225130, avg=34405.32, stdev=31321.77 lat (usec): min=1774, max=225133, avg=34411.26, stdev=31326.43 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 8], | 30.00th=[ 13], 40.00th=[ 20], 50.00th=[ 26], 60.00th=[ 33], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 80], 95.00th=[ 94], | 99.00th=[ 148], 99.50th=[ 171], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 64, max= 445, per=25.47%, avg=212.43, stdev=78.42, samples=58 iops : min= 4, max= 27, avg=12.52, stdev= 4.89, samples=58 lat (usec) : 100=3.12%, 250=0.91%, 750=0.13%, 1000=0.13% lat (msec) : 2=0.65%, 4=3.91%, 10=8.85%, 20=11.20%, 50=42.45% lat (msec) : 100=25.78%, 250=2.86% cpu : usr=0.10%, sys=8.05%, ctx=1930, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=793KiB/s (812kB/s), 202KiB/s-207KiB/s (207kB/s-212kB/s), io=23.4MiB (24.5MB), run=28419-30211msec WRITE: bw=834KiB/s (854kB/s), 200KiB/s-230KiB/s (204kB/s-236kB/s), io=24.6MiB (25.8MB), run=28419-30211msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179202: Tue Jun 23 11:14:26 2026 read: IOPS=9, BW=146KiB/s (149kB/s)(5920KiB/40600msec) clat (msec): min=8, max=232, avg=44.69, stdev=36.36 lat (msec): min=8, max=232, avg=44.69, stdev=36.36 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 63], 90.00th=[ 99], 95.00th=[ 117], | 99.00th=[ 182], 99.50th=[ 222], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 31, max= 384, per=24.99%, avg=146.18, stdev=82.67, samples=79 iops : min= 1, max= 24, avg= 8.37, stdev= 5.29, samples=79 write: IOPS=9, BW=157KiB/s (161kB/s)(6368KiB/40600msec); 0 zone resets clat (msec): min=12, max=267, avg=60.32, stdev=36.19 lat (msec): min=12, max=267, avg=60.33, stdev=36.19 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 71], 80.00th=[ 87], 90.00th=[ 111], 95.00th=[ 130], | 99.00th=[ 178], 99.50th=[ 197], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 30, max= 352, per=25.32%, avg=155.97, stdev=81.47, samples=80 iops : min= 1, max= 22, avg= 8.98, stdev= 5.17, samples=80 lat (msec) : 10=0.65%, 20=9.90%, 50=52.08%, 100=25.65%, 250=11.59% lat (msec) : 500=0.13% cpu : usr=0.04%, sys=2.91%, ctx=1287, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179203: Tue Jun 23 11:14:26 2026 read: IOPS=8, BW=140KiB/s (144kB/s)(5744KiB/40890msec) clat (msec): min=10, max=239, avg=42.91, stdev=35.49 lat (msec): min=10, max=239, avg=42.91, stdev=35.49 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 95], 95.00th=[ 132], | 99.00th=[ 174], 99.50th=[ 190], 99.90th=[ 241], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 30, max= 384, per=24.60%, avg=143.90, stdev=85.99, samples=79 iops : min= 1, max= 24, avg= 8.20, stdev= 5.50, samples=79 write: IOPS=10, BW=160KiB/s (164kB/s)(6544KiB/40890msec); 0 zone resets clat (msec): min=12, max=234, avg=62.09, stdev=39.77 lat (msec): min=12, max=234, avg=62.10, stdev=39.77 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 26], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 72], 80.00th=[ 92], 90.00th=[ 121], 95.00th=[ 146], | 99.00th=[ 192], 99.50th=[ 211], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 31, max= 384, per=25.89%, avg=159.49, stdev=86.16, samples=81 iops : min= 1, max= 24, avg= 9.20, stdev= 5.49, samples=81 lat (msec) : 20=11.46%, 50=52.60%, 100=23.70%, 250=12.24% cpu : usr=0.08%, sys=2.87%, ctx=1337, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179204: Tue Jun 23 11:14:26 2026 read: IOPS=9, BW=156KiB/s (160kB/s)(6256KiB/40082msec) clat (msec): min=9, max=233, avg=42.37, stdev=33.42 lat (msec): min=9, max=233, avg=42.38, stdev=33.42 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 23], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 63], 90.00th=[ 88], 95.00th=[ 112], | 99.00th=[ 171], 99.50th=[ 205], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 447, per=26.85%, avg=157.05, stdev=98.31, samples=78 iops : min= 1, max= 27, avg= 9.06, stdev= 6.17, samples=78 write: IOPS=9, BW=150KiB/s (154kB/s)(6032KiB/40082msec); 0 zone resets clat (msec): min=15, max=215, avg=62.24, stdev=37.53 lat (msec): min=15, max=215, avg=62.25, stdev=37.53 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 28], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 44], 50.00th=[ 48], 60.00th=[ 59], | 70.00th=[ 71], 80.00th=[ 88], 90.00th=[ 117], 95.00th=[ 140], | 99.00th=[ 192], 99.50th=[ 211], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 31, max= 378, per=24.09%, avg=148.38, stdev=71.63, samples=78 iops : min= 1, max= 23, avg= 8.53, stdev= 4.51, samples=78 lat (msec) : 10=0.26%, 20=11.59%, 50=51.56%, 100=25.39%, 250=11.20% cpu : usr=0.07%, sys=2.79%, ctx=1291, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179205: Tue Jun 23 11:14:26 2026 read: IOPS=9, BW=149KiB/s (153kB/s)(6032KiB/40427msec) clat (msec): min=7, max=228, avg=47.02, stdev=37.72 lat (msec): min=7, max=228, avg=47.02, stdev=37.72 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 74], 90.00th=[ 104], 95.00th=[ 129], | 99.00th=[ 167], 99.50th=[ 218], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 31, max= 414, per=25.27%, avg=147.81, stdev=84.07, samples=79 iops : min= 1, max= 25, avg= 8.48, stdev= 5.29, samples=79 write: IOPS=9, BW=155KiB/s (158kB/s)(6256KiB/40427msec); 0 zone resets clat (msec): min=15, max=217, avg=57.93, stdev=33.95 lat (msec): min=15, max=217, avg=57.95, stdev=33.95 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 83], 90.00th=[ 105], 95.00th=[ 128], | 99.00th=[ 186], 99.50th=[ 199], 99.90th=[ 218], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 31, max= 415, per=25.01%, avg=154.08, stdev=86.86, samples=79 iops : min= 1, max= 25, avg= 8.87, stdev= 5.44, samples=79 lat (msec) : 10=0.39%, 20=10.29%, 50=51.56%, 100=26.43%, 250=11.33% cpu : usr=0.07%, sys=2.87%, ctx=1335, 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=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=586KiB/s (600kB/s), 140KiB/s-156KiB/s (144kB/s-160kB/s), io=23.4MiB (24.5MB), run=40082-40890msec WRITE: bw=616KiB/s (631kB/s), 150KiB/s-160KiB/s (154kB/s-164kB/s), io=24.6MiB (25.8MB), run=40082-40890msec 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=179218: Tue Jun 23 11:14:42 2026 read: IOPS=2, BW=2277KiB/s (2332kB/s)(7168KiB/3148msec) clat (msec): min=88, max=789, avg=234.53, stdev=252.92 lat (msec): min=88, max=789, avg=234.53, stdev=252.92 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 104], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 128], 60.00th=[ 144], | 70.00th=[ 144], 80.00th=[ 279], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 1872, max= 4087, per=82.93%, avg=3005.25, stdev=1231.92, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1626KiB/s (1665kB/s)(5120KiB/3148msec); 0 zone resets clat (msec): min=176, max=355, avg=267.97, stdev=67.24 lat (msec): min=176, max=355, avg=268.07, stdev=67.24 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 234], 40.00th=[ 234], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 355], 95.00th=[ 355], | 99.00th=[ 355], 99.50th=[ 355], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 2027, max= 4087, per=66.54%, avg=3376.33, stdev=1169.11, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=5.94%, ctx=85, 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=179219: Tue Jun 23 11:14:42 2026 read: IOPS=0, BW=362KiB/s (371kB/s)(2048KiB/5650msec) clat (msec): min=120, max=257, avg=188.84, stdev=97.11 lat (msec): min=120, max=257, avg=188.85, stdev=97.11 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 121], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 1828, max= 2007, per=52.91%, avg=1917.50, stdev=126.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1812KiB/s (1856kB/s)(10.0MiB/5650msec); 0 zone resets clat (msec): min=101, max=1524, avg=511.11, stdev=449.03 lat (msec): min=101, max=1524, avg=511.24, stdev=449.01 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 279], 50.00th=[ 317], 60.00th=[ 334], | 70.00th=[ 642], 80.00th=[ 676], 90.00th=[ 944], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1828, max= 6023, per=63.22%, avg=3207.60, stdev=1824.83, samples=5 iops : min= 1, max= 5, avg= 2.60, stdev= 1.82, samples=5 lat (msec) : 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=6.32%, ctx=123, 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=179220: Tue Jun 23 11:14:42 2026 read: IOPS=1, BW=1143KiB/s (1170kB/s)(6144KiB/5376msec) clat (msec): min=103, max=623, avg=238.30, stdev=194.66 lat (msec): min=103, max=623, avg=238.31, stdev=194.66 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 116], | 30.00th=[ 116], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 180], | 70.00th=[ 234], 80.00th=[ 234], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 2048, max= 4087, per=93.73%, avg=3396.67, stdev=1168.09, samples=3 iops : min= 2, max= 3, avg= 2.67, stdev= 0.58, samples=3 write: IOPS=1, BW=1143KiB/s (1170kB/s)(6144KiB/5376msec); 0 zone resets clat (msec): min=109, max=2444, avg=653.01, stdev=897.82 lat (msec): min=109, max=2444, avg=653.35, stdev=897.68 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 110], 10.00th=[ 110], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 169], 50.00th=[ 169], 60.00th=[ 518], | 70.00th=[ 535], 80.00th=[ 535], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1809, max= 5678, per=56.87%, avg=2885.50, stdev=1864.59, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 lat (msec) : 250=66.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=4.26%, ctx=79, 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=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=179221: Tue Jun 23 11:14:42 2026 read: IOPS=1, BW=1104KiB/s (1131kB/s)(5120KiB/4637msec) clat (msec): min=160, max=399, avg=225.75, stdev=101.37 lat (msec): min=160, max=399, avg=225.75, stdev=101.37 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 167], 40.00th=[ 167], 50.00th=[ 169], 60.00th=[ 169], | 70.00th=[ 232], 80.00th=[ 232], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 4015, max= 4087, per=100.00%, avg=4051.00, stdev=50.91, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1546KiB/s (1583kB/s)(7168KiB/4637msec); 0 zone resets clat (msec): min=94, max=1436, avg=476.37, stdev=543.49 lat (msec): min=94, max=1436, avg=476.47, stdev=543.49 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 94], 10.00th=[ 94], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 176], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 1070], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 1903, max= 6144, per=69.67%, avg=3535.25, stdev=2009.13, samples=4 iops : min= 1, max= 6, avg= 2.75, stdev= 2.36, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 2000=16.67% cpu : usr=0.00%, sys=3.69%, 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=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=3625KiB/s (3712kB/s), 362KiB/s-2277KiB/s (371kB/s-2332kB/s), io=20.0MiB (20.0MB), run=3148-5650msec WRITE: bw=5075KiB/s (5196kB/s), 1143KiB/s-1812KiB/s (1170kB/s-1856kB/s), io=28.0MiB (29.4MB), run=3148-5650msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179223: Tue Jun 23 11:14:42 2026 read: IOPS=1, BW=1276KiB/s (1307kB/s)(7168KiB/5618msec) clat (usec): min=614, max=2778.3k, avg=561019.13, stdev=997958.32 lat (usec): min=616, max=2778.3k, avg=561020.74, stdev=997958.64 clat percentiles (usec): | 1.00th=[ 619], 5.00th=[ 619], 10.00th=[ 619], | 20.00th=[ 644], 30.00th=[ 130548], 40.00th=[ 130548], | 50.00th=[ 147850], 60.00th=[ 287310], 70.00th=[ 287310], | 80.00th=[ 583009], 90.00th=[2768241], 95.00th=[2768241], | 99.00th=[2768241], 99.50th=[2768241], 99.90th=[2768241], | 99.95th=[2768241], 99.99th=[2768241] bw ( KiB/s): min= 2027, max= 4071, per=67.07%, avg=2444.60, stdev=909.21, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=911KiB/s (933kB/s)(5120KiB/5618msec); 0 zone resets clat (msec): min=97, max=602, avg=295.95, stdev=194.17 lat (msec): min=97, max=602, avg=296.13, stdev=194.11 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 226], 60.00th=[ 226], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 2043, max= 4087, per=66.63%, avg=3400.33, stdev=1175.51, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 750=16.67% lat (msec) : 100=8.33%, 250=33.33%, 500=16.67%, 750=16.67%, >=2000=8.33% cpu : usr=0.04%, sys=10.73%, ctx=439, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179224: Tue Jun 23 11:14:42 2026 read: IOPS=0, BW=393KiB/s (403kB/s)(2048KiB/5208msec) clat (usec): min=592, max=239679, avg=120136.24, stdev=169060.06 lat (usec): min=594, max=239682, avg=120138.46, stdev=169061.01 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 594], | 30.00th=[ 594], 40.00th=[ 594], 50.00th=[ 594], 60.00th=[240124], | 70.00th=[240124], 80.00th=[240124], 90.00th=[240124], 95.00th=[240124], | 99.00th=[240124], 99.50th=[240124], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 1954, max= 1961, per=53.70%, avg=1957.50, stdev= 4.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1966KiB/s (2013kB/s)(10.0MiB/5208msec); 0 zone resets clat (msec): min=125, max=1390, avg=471.81, stdev=367.62 lat (msec): min=125, max=1390, avg=471.91, stdev=367.63 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 226], | 30.00th=[ 251], 40.00th=[ 338], 50.00th=[ 376], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 414], 90.00th=[ 793], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1939, max= 4079, per=50.64%, avg=2584.00, stdev=1011.01, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=13.02%, ctx=175, 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=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=179225: Tue Jun 23 11:14:42 2026 read: IOPS=1, BW=1221KiB/s (1251kB/s)(6144KiB/5031msec) clat (usec): min=544, max=287568, avg=162066.34, stdev=127124.59 lat (usec): min=546, max=287570, avg=162067.77, stdev=127124.52 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 2147], | 30.00th=[ 2147], 40.00th=[206570], 50.00th=[206570], 60.00th=[235930], | 70.00th=[238027], 80.00th=[238027], 90.00th=[287310], 95.00th=[287310], | 99.00th=[287310], 99.50th=[287310], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 1935, max= 4071, per=68.28%, avg=2488.75, stdev=1055.06, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1221KiB/s (1251kB/s)(6144KiB/5031msec); 0 zone resets clat (msec): min=179, max=1512, avg=625.02, stdev=589.64 lat (msec): min=180, max=1512, avg=625.24, stdev=589.51 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 255], 50.00th=[ 255], 60.00th=[ 372], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 1935, max= 2734, per=42.45%, avg=2166.25, stdev=380.86, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 250=41.67%, 500=25.00%, 2000=16.67% cpu : usr=0.00%, sys=12.49%, ctx=212, 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=179226: Tue Jun 23 11:14:42 2026 read: IOPS=1, BW=1058KiB/s (1083kB/s)(5120KiB/4840msec) clat (usec): min=628, max=250857, avg=117873.54, stdev=120516.57 lat (usec): min=630, max=250858, avg=117875.32, stdev=120516.29 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 627], | 30.00th=[ 627], 40.00th=[ 627], 50.00th=[106431], 60.00th=[106431], | 70.00th=[231736], 80.00th=[231736], 90.00th=[250610], 95.00th=[250610], | 99.00th=[250610], 99.50th=[250610], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] bw ( KiB/s): min= 1954, max= 6083, per=100.00%, avg=4018.50, stdev=2919.64, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1481KiB/s (1517kB/s)(7168KiB/4840msec); 0 zone resets clat (msec): min=180, max=1539, avg=592.65, stdev=643.73 lat (msec): min=180, max=1539, avg=592.73, stdev=643.72 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 209], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 211], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 2007, max= 3908, per=48.90%, avg=2495.25, stdev=941.91, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 750=16.67% lat (msec) : 250=50.00%, 500=16.67%, 2000=16.67% cpu : usr=0.02%, sys=12.79%, ctx=203, 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=3645KiB/s (3733kB/s), 393KiB/s-1276KiB/s (403kB/s-1307kB/s), io=20.0MiB (20.0MB), run=4840-5618msec WRITE: bw=5104KiB/s (5226kB/s), 911KiB/s-1966KiB/s (933kB/s-2013kB/s), io=28.0MiB (29.4MB), run=4840-5618msec 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=179233: Tue Jun 23 11:14:57 2026 read: IOPS=1, BW=4599KiB/s (4709kB/s)(12.0MiB/2672msec) clat (msec): min=664, max=909, avg=808.52, stdev=128.15 lat (msec): min=664, max=909, avg=808.52, stdev=128.15 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 70.00th=[ 911], 80.00th=[ 911], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7861, max= 8031, per=100.00%, avg=7946.00, stdev=120.21, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=13.82%, ctx=398, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179235: Tue Jun 23 11:14:57 2026 read: IOPS=0, BW=1076KiB/s (1102kB/s)(4096KiB/3805msec) clat (nsec): min=928209k, max=928209k, avg=928208728.00, stdev= 0.00 lat (nsec): min=928210k, max=928210k, avg=928209980.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 927], 5.00th=[ 927], 10.00th=[ 927], 20.00th=[ 927], | 30.00th=[ 927], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7861, max= 7861, per=100.00%, avg=7861.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2153KiB/s (2205kB/s)(8192KiB/3805msec); 0 zone resets clat (msec): min=1219, max=1442, avg=1331.12, stdev=158.04 lat (msec): min=1220, max=1443, avg=1331.85, stdev=157.99 clat percentiles (msec): | 1.00th=[ 1217], 5.00th=[ 1217], 10.00th=[ 1217], 20.00th=[ 1217], | 30.00th=[ 1217], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8031, max= 8031, per=93.26%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.84%, ctx=167, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179237: Tue Jun 23 11:14:57 2026 write: IOPS=1, BW=4604KiB/s (4714kB/s)(12.0MiB/2669msec); 0 zone resets clat (msec): min=423, max=1100, avg=862.48, stdev=380.36 lat (msec): min=424, max=1102, avg=863.41, stdev=380.97 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 1062], 50.00th=[ 1062], 60.00th=[ 1062], | 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= 7876, max= 7876, per=91.46%, avg=7876.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.54%, ctx=57, 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=179239: Tue Jun 23 11:14:57 2026 write: IOPS=0, BW=4061KiB/s (4158kB/s)(12.0MiB/3026msec); 0 zone resets clat (msec): min=234, max=1701, avg=953.59, stdev=733.79 lat (msec): min=235, max=1701, avg=954.26, stdev=733.71 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 7876, max= 7876, per=91.46%, avg=7876.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.92%, ctx=75, 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=4306KiB/s (4409kB/s), 1076KiB/s-4599KiB/s (1102kB/s-4709kB/s), io=16.0MiB (16.8MB), run=2672-3805msec WRITE: bw=8612KiB/s (8819kB/s), 2153KiB/s-4604KiB/s (2205kB/s-4714kB/s), io=32.0MiB (33.6MB), run=2669-3805msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179234: Tue Jun 23 11:14:57 2026 read: IOPS=0, BW=3517KiB/s (3601kB/s)(12.0MiB/3494msec) clat (msec): min=237, max=1671, avg=1106.55, stdev=763.40 lat (msec): min=237, max=1671, avg=1106.56, stdev=763.40 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8015, max= 8047, per=100.00%, avg=8031.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.58%, 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=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=179236: Tue Jun 23 11:14:57 2026 read: IOPS=0, BW=1334KiB/s (1366kB/s)(4096KiB/3071msec) clat (nsec): min=438065k, max=438065k, avg=438065489.00, stdev= 0.00 lat (nsec): min=438068k, max=438068k, avg=438067939.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 439], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 439], 80.00th=[ 439], 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= 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=2668KiB/s (2732kB/s)(8192KiB/3071msec); 0 zone resets clat (msec): min=1127, max=1325, avg=1226.33, stdev=140.45 lat (msec): min=1127, max=1327, avg=1227.39, stdev=141.37 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1334], | 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= 7907, max= 7907, per=88.80%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.31%, ctx=62, 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=179238: Tue Jun 23 11:14:57 2026 write: IOPS=0, BW=3339KiB/s (3419kB/s)(12.0MiB/3680msec); 0 zone resets clat (msec): min=228, max=2051, avg=1189.22, stdev=915.47 lat (msec): min=228, max=2052, avg=1190.20, stdev=915.97 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 8047, max= 8047, per=90.38%, avg=8047.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.07%, ctx=66, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=179240: Tue Jun 23 11:14:57 2026 write: IOPS=1, BW=5227KiB/s (5352kB/s)(12.0MiB/2351msec); 0 zone resets clat (msec): min=370, max=1499, avg=757.29, stdev=643.04 lat (msec): min=370, max=1500, avg=757.82, stdev=643.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 6243, max= 7846, per=79.12%, avg=7044.50, stdev=1133.49, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.94%, ctx=56, 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=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=4689KiB/s (4802kB/s), 1334KiB/s-3517KiB/s (1366kB/s-3601kB/s), io=16.0MiB (16.8MB), run=3071-3494msec WRITE: bw=8904KiB/s (9118kB/s), 2668KiB/s-5227KiB/s (2732kB/s-5352kB/s), io=32.0MiB (33.6MB), run=2351-3680msec