== sanity test 398b: DIO and buffer IO race ============== 01:55:22 (1788587722) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.78242 s, 7.4 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=178887: Sat Sep 5 01:57:38 2026 read: IOPS=13, BW=52.6KiB/s (53.9kB/s)(5992KiB/113906msec) clat (usec): min=39, max=1007.0k, avg=42190.19, stdev=37647.55 lat (usec): min=39, max=1007.0k, avg=42195.16, stdev=37645.24 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 8848], 10.00th=[ 14877], | 20.00th=[ 19792], 30.00th=[ 24773], 40.00th=[ 29754], | 50.00th=[ 34866], 60.00th=[ 42206], 70.00th=[ 50070], | 80.00th=[ 61080], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[ 137364], 99.50th=[ 168821], 99.90th=[ 265290], | 99.95th=[1010828], 99.99th=[1010828] bw ( KiB/s): min= 7, max= 111, per=25.38%, avg=52.29, stdev=20.59, samples=224 iops : min= 1, max= 27, avg=12.44, stdev= 5.19, samples=224 write: IOPS=13, BW=55.3KiB/s (56.6kB/s)(6296KiB/113906msec); 0 zone resets clat (usec): min=733, max=288339, avg=31963.54, stdev=34861.17 lat (usec): min=733, max=288342, avg=31966.39, stdev=34860.72 clat percentiles (usec): | 1.00th=[ 1004], 5.00th=[ 1123], 10.00th=[ 1254], 20.00th=[ 2737], | 30.00th=[ 5997], 40.00th=[ 14484], 50.00th=[ 22676], 60.00th=[ 30278], | 70.00th=[ 40633], 80.00th=[ 53740], 90.00th=[ 80217], 95.00th=[ 99091], | 99.00th=[147850], 99.50th=[193987], 99.90th=[238027], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 158, per=25.58%, avg=55.24, stdev=24.39, samples=223 iops : min= 1, max= 39, avg=13.17, stdev= 6.14, samples=223 lat (usec) : 50=0.16%, 100=1.79%, 250=0.03%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.49% lat (msec) : 2=8.04%, 4=4.13%, 10=6.35%, 20=12.99%, 50=39.71% lat (msec) : 100=22.07%, 250=4.07%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=5.33%, ctx=6273, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178889: Sat Sep 5 01:57:38 2026 read: IOPS=12, BW=51.2KiB/s (52.4kB/s)(5940KiB/116112msec) clat (usec): min=36, max=253777, avg=42464.55, stdev=30717.44 lat (usec): min=36, max=253778, avg=42466.01, stdev=30717.68 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8455], 10.00th=[ 14222], 20.00th=[ 19792], | 30.00th=[ 24773], 40.00th=[ 29492], 50.00th=[ 35390], 60.00th=[ 42730], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 78119], 95.00th=[ 93848], | 99.00th=[168821], 99.50th=[193987], 99.90th=[233833], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 7, max= 127, per=24.75%, avg=50.98, stdev=21.67, samples=227 iops : min= 1, max= 31, avg=12.11, stdev= 5.46, samples=227 write: IOPS=13, BW=54.7KiB/s (55.0kB/s)(6348KiB/116112msec); 0 zone resets clat (usec): min=809, max=1017.2k, avg=33151.94, stdev=43113.49 lat (usec): min=809, max=1017.2k, avg=33155.11, stdev=43112.60 clat percentiles (usec): | 1.00th=[ 1012], 5.00th=[ 1139], 10.00th=[ 1287], | 20.00th=[ 2868], 30.00th=[ 5669], 40.00th=[ 14353], | 50.00th=[ 22414], 60.00th=[ 30016], 70.00th=[ 41681], | 80.00th=[ 55837], 90.00th=[ 81265], 95.00th=[ 103285], | 99.00th=[ 152044], 99.50th=[ 187696], 99.90th=[ 258999], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 128, per=25.22%, avg=54.47, stdev=23.66, samples=227 iops : min= 1, max= 32, avg=12.99, stdev= 5.96, samples=227 lat (usec) : 50=0.20%, 100=1.82%, 250=0.07%, 1000=0.39% lat (msec) : 2=8.07%, 4=4.69%, 10=6.09%, 20=13.09%, 50=38.05% lat (msec) : 100=22.69%, 250=4.75%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=5.19%, ctx=6221, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178891: Sat Sep 5 01:57:38 2026 read: IOPS=13, BW=54.0KiB/s (55.3kB/s)(6028KiB/111530msec) clat (usec): min=33, max=1016.3k, avg=41046.60, stdev=36658.85 lat (usec): min=34, max=1016.3k, avg=41049.54, stdev=36657.89 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 9241], 10.00th=[ 14746], | 20.00th=[ 20055], 30.00th=[ 24511], 40.00th=[ 29230], | 50.00th=[ 34341], 60.00th=[ 40633], 70.00th=[ 48497], | 80.00th=[ 58983], 90.00th=[ 77071], 95.00th=[ 91751], | 99.00th=[ 127402], 99.50th=[ 152044], 99.90th=[ 233833], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 5, max= 108, per=26.16%, avg=53.88, stdev=20.72, samples=219 iops : min= 1, max= 27, avg=12.84, stdev= 5.20, samples=219 write: IOPS=14, BW=56.1KiB/s (57.5kB/s)(6260KiB/111530msec); 0 zone resets clat (usec): min=739, max=290412, avg=31498.72, stdev=35948.84 lat (usec): min=740, max=290414, avg=31501.82, stdev=35949.97 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1139], 10.00th=[ 1237], 20.00th=[ 2540], | 30.00th=[ 4948], 40.00th=[ 11469], 50.00th=[ 20055], 60.00th=[ 29230], | 70.00th=[ 39584], 80.00th=[ 54264], 90.00th=[ 78119], 95.00th=[104334], | 99.00th=[164627], 99.50th=[187696], 99.90th=[278922], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 127, per=25.87%, avg=55.89, stdev=24.58, samples=219 iops : min= 1, max= 31, avg=13.34, stdev= 6.19, samples=219 lat (usec) : 50=0.33%, 100=1.46%, 250=0.16%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.33% lat (msec) : 2=8.63%, 4=4.49%, 10=6.58%, 20=13.12%, 50=39.00% lat (msec) : 100=21.19%, 250=4.43%, 500=0.07%, 2000=0.03% cpu : usr=0.09%, sys=5.20%, ctx=5980, 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=178892: Sat Sep 5 01:57:38 2026 read: IOPS=13, BW=52.2KiB/s (53.5kB/s)(6052KiB/115883msec) clat (usec): min=37, max=1127.3k, avg=43580.61, stdev=42214.74 lat (usec): min=38, max=1127.3k, avg=43582.06, stdev=42215.53 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 9372], 10.00th=[ 14746], | 20.00th=[ 20317], 30.00th=[ 25560], 40.00th=[ 30540], | 50.00th=[ 36439], 60.00th=[ 42730], 70.00th=[ 50070], | 80.00th=[ 59507], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[ 164627], 99.50th=[ 229639], 99.90th=[ 287310], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 119, per=25.16%, avg=51.83, stdev=20.60, samples=228 iops : min= 1, max= 29, avg=12.33, stdev= 5.20, samples=228 write: IOPS=13, BW=53.8KiB/s (55.1kB/s)(6236KiB/115883msec); 0 zone resets clat (usec): min=786, max=266006, avg=31791.16, stdev=34796.80 lat (usec): min=788, max=266008, avg=31792.78, stdev=34796.82 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1156], 10.00th=[ 1287], 20.00th=[ 2900], | 30.00th=[ 5800], 40.00th=[ 13435], 50.00th=[ 21365], 60.00th=[ 28705], | 70.00th=[ 39584], 80.00th=[ 55313], 90.00th=[ 80217], 95.00th=[106431], | 99.00th=[147850], 99.50th=[160433], 99.90th=[235930], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 7, max= 144, per=24.74%, avg=53.44, stdev=25.46, samples=228 iops : min= 1, max= 36, avg=12.72, stdev= 6.43, samples=228 lat (usec) : 50=0.23%, 100=1.53%, 250=0.26%, 1000=0.46% lat (msec) : 2=8.07%, 4=4.04%, 10=6.87%, 20=12.30%, 50=39.78% lat (msec) : 100=21.42%, 250=4.88%, 500=0.13%, 2000=0.03% cpu : usr=0.09%, sys=5.06%, ctx=6230, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=207KiB/s (212kB/s), 51.2KiB/s-54.0KiB/s (52.4kB/s-55.3kB/s), io=23.4MiB (24.6MB), run=111530-116112msec WRITE: bw=217KiB/s (222kB/s), 53.8KiB/s-56.1KiB/s (55.1kB/s-57.5kB/s), io=24.6MiB (25.7MB), run=111530-116112msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178885: Sat Sep 5 01:58:18 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5992KiB/156363msec) clat (msec): min=4, max=1043, avg=40.90, stdev=47.75 lat (msec): min=4, max=1043, avg=40.90, stdev=47.75 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 87], 95.00th=[ 122], | 99.00th=[ 222], 99.50th=[ 255], 99.90th=[ 372], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 142, per=25.47%, avg=38.98, stdev=26.24, samples=299 iops : min= 1, max= 35, avg= 9.08, stdev= 6.59, samples=299 write: IOPS=10, BW=40.3KiB/s (41.2kB/s)(6296KiB/156363msec); 0 zone resets clat (msec): min=11, max=340, avg=60.16, stdev=44.11 lat (msec): min=11, max=340, avg=60.16, stdev=44.11 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 33], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 57], | 70.00th=[ 70], 80.00th=[ 88], 90.00th=[ 120], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 262], 99.90th=[ 313], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 135, per=25.18%, avg=40.29, stdev=25.67, samples=304 iops : min= 1, max= 33, avg= 9.41, stdev= 6.45, samples=304 lat (msec) : 10=3.68%, 20=17.51%, 50=43.85%, 100=23.54%, 250=10.81% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.06%, sys=1.74%, ctx=4771, 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=178886: Sat Sep 5 01:58:18 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5940KiB/154982msec) clat (msec): min=4, max=1120, avg=40.99, stdev=47.88 lat (msec): min=4, max=1120, avg=41.00, stdev=47.88 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 58], 90.00th=[ 91], 95.00th=[ 126], | 99.00th=[ 182], 99.50th=[ 215], 99.90th=[ 321], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 143, per=25.53%, avg=39.06, stdev=28.08, samples=296 iops : min= 1, max= 35, avg= 9.10, stdev= 7.04, samples=296 write: IOPS=10, BW=40.0KiB/s (41.9kB/s)(6348KiB/154982msec); 0 zone resets clat (msec): min=9, max=392, avg=59.03, stdev=44.63 lat (msec): min=9, max=392, avg=59.03, stdev=44.63 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 20], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 67], 80.00th=[ 83], 90.00th=[ 112], 95.00th=[ 142], | 99.00th=[ 249], 99.50th=[ 288], 99.90th=[ 355], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 120, per=25.59%, avg=40.94, stdev=25.92, samples=301 iops : min= 1, max= 30, avg= 9.58, stdev= 6.52, samples=301 lat (msec) : 10=4.07%, 20=16.76%, 50=44.60%, 100=23.40%, 250=10.55% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.06%, sys=1.77%, ctx=4804, 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=178888: Sat Sep 5 01:58:18 2026 read: IOPS=9, BW=38.8KiB/s (39.7kB/s)(6028KiB/155312msec) clat (msec): min=4, max=339, avg=40.71, stdev=37.17 lat (msec): min=4, max=339, avg=40.71, stdev=37.17 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 93], 95.00th=[ 116], | 99.00th=[ 178], 99.50th=[ 209], 99.90th=[ 279], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 135, per=26.03%, avg=39.82, stdev=26.14, samples=295 iops : min= 1, max= 33, avg= 9.29, stdev= 6.57, samples=295 write: IOPS=10, BW=40.3KiB/s (41.3kB/s)(6260KiB/155312msec); 0 zone resets clat (msec): min=9, max=1162, avg=59.76, stdev=52.10 lat (msec): min=9, max=1162, avg=59.77, stdev=52.10 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 45], 60.00th=[ 55], | 70.00th=[ 67], 80.00th=[ 86], 90.00th=[ 117], 95.00th=[ 148], | 99.00th=[ 215], 99.50th=[ 262], 99.90th=[ 384], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 151, per=25.12%, avg=40.18, stdev=26.50, samples=303 iops : min= 1, max= 37, avg= 9.39, stdev= 6.66, samples=303 lat (msec) : 10=3.12%, 20=16.89%, 50=45.57%, 100=22.98%, 250=11.07% lat (msec) : 500=0.33%, 2000=0.03% cpu : usr=0.06%, sys=1.76%, ctx=4779, 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=178890: Sat Sep 5 01:58:18 2026 read: IOPS=9, BW=39.5KiB/s (40.4kB/s)(6052KiB/153378msec) clat (msec): min=4, max=366, avg=38.83, stdev=35.78 lat (msec): min=4, max=366, avg=38.83, stdev=35.78 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 83], 95.00th=[ 109], | 99.00th=[ 174], 99.50th=[ 215], 99.90th=[ 305], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 151, per=26.59%, avg=40.68, stdev=28.05, samples=290 iops : min= 1, max= 37, avg= 9.51, stdev= 7.06, samples=290 write: IOPS=10, BW=40.7KiB/s (41.6kB/s)(6236KiB/153378msec); 0 zone resets clat (msec): min=10, max=1154, avg=60.46, stdev=52.66 lat (msec): min=10, max=1154, avg=60.46, stdev=52.66 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 87], 90.00th=[ 118], 95.00th=[ 148], | 99.00th=[ 255], 99.50th=[ 284], 99.90th=[ 347], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 7, max= 135, per=25.39%, avg=40.62, stdev=26.14, samples=299 iops : min= 1, max= 33, avg= 9.49, stdev= 6.56, samples=299 lat (msec) : 10=3.52%, 20=18.29%, 50=43.42%, 100=23.96%, 250=10.19% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.07%, sys=1.73%, ctx=4678, 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=154KiB/s (157kB/s), 38.3KiB/s-39.5KiB/s (39.2kB/s-40.4kB/s), io=23.4MiB (24.6MB), run=153378-156363msec WRITE: bw=161KiB/s (165kB/s), 40.3KiB/s-40.0KiB/s (41.2kB/s-41.9kB/s), io=24.6MiB (25.7MB), run=153378-156363msec 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=178936: Sat Sep 5 01:59:06 2026 read: IOPS=11, BW=185KiB/s (190kB/s)(5920KiB/31974msec) clat (usec): min=42, max=206350, avg=47509.42, stdev=33754.98 lat (usec): min=43, max=206351, avg=47512.50, stdev=33755.30 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 69], 10.00th=[ 9372], 20.00th=[ 23200], | 30.00th=[ 29492], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 91751], 95.00th=[111674], | 99.00th=[170918], 99.50th=[191890], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 93, max= 319, per=25.90%, avg=184.90, stdev=53.55, samples=63 iops : min= 5, max= 19, avg=10.79, stdev= 3.37, samples=63 write: IOPS=12, BW=199KiB/s (204kB/s)(6368KiB/31974msec); 0 zone resets clat (usec): min=1489, max=185557, avg=36027.16, stdev=33030.50 lat (usec): min=1491, max=185560, avg=36029.57, stdev=33030.65 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1975], 10.00th=[ 3228], 20.00th=[ 6259], | 30.00th=[ 10683], 40.00th=[ 20317], 50.00th=[ 26608], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 60556], 90.00th=[ 85459], 95.00th=[ 98042], | 99.00th=[143655], 99.50th=[170918], 99.90th=[185598], 99.95th=[185598], | 99.99th=[185598] bw ( KiB/s): min= 62, max= 479, per=26.47%, avg=198.78, stdev=80.34, samples=63 iops : min= 3, max= 29, avg=11.65, stdev= 5.08, samples=63 lat (usec) : 50=0.39%, 100=3.78%, 250=0.39%, 1000=0.13% lat (msec) : 2=2.86%, 4=4.04%, 10=8.33%, 20=7.94%, 50=39.19% lat (msec) : 100=27.08%, 250=5.86% cpu : usr=0.08%, sys=5.81%, ctx=1702, 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=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=178937: Sat Sep 5 01:59:06 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5744KiB/32953msec) clat (usec): min=40, max=188772, avg=48179.17, stdev=29256.08 lat (usec): min=40, max=188773, avg=48180.67, stdev=29256.07 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 71], 10.00th=[ 17957], 20.00th=[ 25822], | 30.00th=[ 32375], 40.00th=[ 36963], 50.00th=[ 44827], 60.00th=[ 51643], | 70.00th=[ 58459], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[108528], | 99.00th=[149947], 99.50th=[156238], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 31, max= 340, per=24.21%, avg=172.89, stdev=72.37, samples=64 iops : min= 1, max= 21, avg=10.03, stdev= 4.57, samples=64 write: IOPS=12, BW=199KiB/s (203kB/s)(6544KiB/32953msec); 0 zone resets clat (usec): min=1432, max=197280, avg=38204.19, stdev=36871.12 lat (usec): min=1433, max=197282, avg=38206.43, stdev=36871.27 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2008], 10.00th=[ 3261], 20.00th=[ 6521], | 30.00th=[ 11994], 40.00th=[ 19268], 50.00th=[ 28181], 60.00th=[ 35914], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 89654], 95.00th=[115868], | 99.00th=[162530], 99.50th=[168821], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 31, max= 442, per=26.02%, avg=195.44, stdev=84.53, samples=64 iops : min= 1, max= 27, avg=11.45, stdev= 5.37, samples=64 lat (usec) : 50=0.13%, 100=2.99% lat (msec) : 2=2.60%, 4=3.39%, 10=8.46%, 20=10.29%, 50=37.76% lat (msec) : 100=27.60%, 250=6.77% cpu : usr=0.07%, sys=5.79%, ctx=1750, 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=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=178938: Sat Sep 5 01:59:06 2026 read: IOPS=11, BW=187KiB/s (191kB/s)(6256KiB/33531msec) clat (usec): min=38, max=260269, avg=49571.26, stdev=36264.07 lat (usec): min=38, max=260269, avg=49572.86, stdev=36264.37 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 73], 10.00th=[ 14615], 20.00th=[ 22676], | 30.00th=[ 28967], 40.00th=[ 34341], 50.00th=[ 44303], 60.00th=[ 50594], | 70.00th=[ 58459], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[112722], | 99.00th=[181404], 99.50th=[246416], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 31, max= 382, per=26.08%, avg=186.23, stdev=78.72, samples=66 iops : min= 1, max= 23, avg=10.88, stdev= 5.00, samples=66 write: IOPS=11, BW=180KiB/s (184kB/s)(6032KiB/33531msec); 0 zone resets clat (usec): min=1273, max=337277, avg=37398.34, stdev=38624.31 lat (usec): min=1274, max=337279, avg=37402.53, stdev=38622.73 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1926], 10.00th=[ 3261], 20.00th=[ 6980], | 30.00th=[ 12125], 40.00th=[ 19268], 50.00th=[ 25560], 60.00th=[ 32375], | 70.00th=[ 44303], 80.00th=[ 63177], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[170918], 99.50th=[191890], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 62, max= 573, per=23.74%, avg=178.30, stdev=90.27, samples=66 iops : min= 3, max= 35, avg=10.38, stdev= 5.66, samples=66 lat (usec) : 50=0.26%, 100=2.99%, 250=0.13%, 500=0.13% lat (msec) : 2=2.99%, 4=3.52%, 10=6.64%, 20=11.98%, 50=36.59% lat (msec) : 100=27.60%, 250=6.90%, 500=0.26% cpu : usr=0.08%, sys=5.42%, ctx=1748, 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=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=178939: Sat Sep 5 01:59:06 2026 read: IOPS=11, BW=188KiB/s (193kB/s)(6032KiB/32036msec) clat (usec): min=46, max=181906, avg=46918.23, stdev=32204.95 lat (usec): min=47, max=181908, avg=46919.95, stdev=32204.89 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 73], 10.00th=[ 1467], 20.00th=[ 22938], | 30.00th=[ 29492], 40.00th=[ 35390], 50.00th=[ 41681], 60.00th=[ 47973], | 70.00th=[ 58459], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[108528], | 99.00th=[168821], 99.50th=[179307], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 351, per=26.74%, avg=190.90, stdev=75.90, samples=62 iops : min= 1, max= 21, avg=11.16, stdev= 4.80, samples=62 write: IOPS=12, BW=195KiB/s (200kB/s)(6256KiB/32036msec); 0 zone resets clat (usec): min=1038, max=205964, avg=36555.89, stdev=37147.40 lat (usec): min=1039, max=205965, avg=36559.34, stdev=37146.77 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1942], 10.00th=[ 2769], 20.00th=[ 5145], | 30.00th=[ 9896], 40.00th=[ 15926], 50.00th=[ 25035], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 64750], 90.00th=[ 85459], 95.00th=[112722], | 99.00th=[170918], 99.50th=[181404], 99.90th=[206570], 99.95th=[206570], | 99.99th=[206570] bw ( KiB/s): min= 31, max= 348, per=26.03%, avg=195.46, stdev=81.34, samples=63 iops : min= 1, max= 21, avg=11.46, stdev= 5.17, samples=63 lat (usec) : 50=0.26%, 100=3.65%, 250=0.39%, 500=0.39% lat (msec) : 2=3.39%, 4=5.47%, 10=7.16%, 20=9.90%, 50=37.24% lat (msec) : 100=26.43%, 250=5.73% cpu : usr=0.11%, sys=5.71%, ctx=1645, 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=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=714KiB/s (731kB/s), 174KiB/s-188KiB/s (178kB/s-193kB/s), io=23.4MiB (24.5MB), run=31974-33531msec WRITE: bw=752KiB/s (770kB/s), 180KiB/s-199KiB/s (184kB/s-204kB/s), io=24.6MiB (25.8MB), run=31974-33531msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178931: Sat Sep 5 01:59:16 2026 read: IOPS=8, BW=135KiB/s (138kB/s)(5920KiB/43993msec) clat (msec): min=7, max=257, avg=43.45, stdev=39.02 lat (msec): min=7, max=257, avg=43.45, stdev=39.02 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 26], 50.00th=[ 30], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 93], 95.00th=[ 131], | 99.00th=[ 203], 99.50th=[ 253], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 31, max= 384, per=24.63%, avg=133.72, stdev=84.86, samples=85 iops : min= 1, max= 24, avg= 7.56, stdev= 5.36, samples=85 write: IOPS=9, BW=145KiB/s (148kB/s)(6368KiB/43993msec); 0 zone resets clat (msec): min=13, max=282, avg=69.76, stdev=45.00 lat (msec): min=13, max=282, avg=69.76, stdev=45.00 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 47], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 82], 80.00th=[ 103], 90.00th=[ 138], 95.00th=[ 161], | 99.00th=[ 213], 99.50th=[ 259], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 31, max= 382, per=25.13%, avg=143.50, stdev=78.92, samples=86 iops : min= 1, max= 23, avg= 8.16, stdev= 4.92, samples=86 lat (msec) : 10=0.52%, 20=9.51%, 50=49.48%, 100=25.91%, 250=13.80% lat (msec) : 500=0.78% cpu : usr=0.05%, sys=1.83%, ctx=1133, 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=178932: Sat Sep 5 01:59:16 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(5744KiB/44071msec) clat (msec): min=8, max=244, avg=46.69, stdev=40.81 lat (msec): min=8, max=244, avg=46.70, stdev=40.81 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 27], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 66], 90.00th=[ 103], 95.00th=[ 140], | 99.00th=[ 211], 99.50th=[ 230], 99.90th=[ 245], 99.95th=[ 245], | 99.99th=[ 245] bw ( KiB/s): min= 30, max= 415, per=25.15%, avg=136.59, stdev=80.24, samples=83 iops : min= 1, max= 25, avg= 7.71, stdev= 5.03, samples=83 write: IOPS=9, BW=148KiB/s (152kB/s)(6544KiB/44071msec); 0 zone resets clat (msec): min=16, max=343, avg=66.53, stdev=46.19 lat (msec): min=16, max=343, avg=66.55, stdev=46.20 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 52], 60.00th=[ 65], | 70.00th=[ 74], 80.00th=[ 91], 90.00th=[ 124], 95.00th=[ 150], | 99.00th=[ 247], 99.50th=[ 275], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 414, per=26.17%, avg=149.44, stdev=83.21, samples=86 iops : min= 1, max= 25, avg= 8.55, stdev= 5.21, samples=86 lat (msec) : 10=1.04%, 20=11.20%, 50=46.48%, 100=27.86%, 250=12.89% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.71%, ctx=1086, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178933: Sat Sep 5 01:59:16 2026 read: IOPS=9, BW=144KiB/s (148kB/s)(6256KiB/43398msec) clat (msec): min=7, max=326, avg=44.26, stdev=38.51 lat (msec): min=7, max=326, avg=44.26, stdev=38.51 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 61], 90.00th=[ 101], 95.00th=[ 125], | 99.00th=[ 171], 99.50th=[ 203], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 31, max= 382, per=26.49%, avg=143.86, stdev=97.65, samples=85 iops : min= 1, max= 23, avg= 8.20, stdev= 6.10, samples=85 write: IOPS=8, BW=139KiB/s (142kB/s)(6032KiB/43398msec); 0 zone resets clat (msec): min=14, max=328, avg=68.74, stdev=47.92 lat (msec): min=14, max=328, avg=68.75, stdev=47.93 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 54], 60.00th=[ 63], | 70.00th=[ 75], 80.00th=[ 97], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 262], 99.50th=[ 321], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 350, per=23.91%, avg=136.51, stdev=72.47, samples=85 iops : min= 1, max= 21, avg= 7.73, stdev= 4.55, samples=85 lat (msec) : 10=1.17%, 20=12.63%, 50=46.61%, 100=25.00%, 250=13.93% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.80%, ctx=1165, 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=178934: Sat Sep 5 01:59:16 2026 read: IOPS=8, BW=137KiB/s (140kB/s)(6032KiB/43979msec) clat (msec): min=5, max=211, avg=45.68, stdev=38.00 lat (msec): min=5, max=211, avg=45.68, stdev=38.00 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 48], 80.00th=[ 66], 90.00th=[ 99], 95.00th=[ 132], | 99.00th=[ 194], 99.50th=[ 194], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 31, max= 414, per=25.84%, avg=140.33, stdev=86.96, samples=83 iops : min= 1, max= 25, avg= 7.96, stdev= 5.46, samples=83 write: IOPS=8, BW=142KiB/s (146kB/s)(6256KiB/43979msec); 0 zone resets clat (msec): min=13, max=311, avg=67.89, stdev=44.56 lat (msec): min=13, max=311, avg=67.89, stdev=44.56 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 28], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 45], 50.00th=[ 54], 60.00th=[ 64], | 70.00th=[ 81], 80.00th=[ 97], 90.00th=[ 130], 95.00th=[ 157], | 99.00th=[ 234], 99.50th=[ 262], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 31, max= 383, per=24.53%, avg=140.06, stdev=74.88, samples=86 iops : min= 1, max= 23, avg= 7.95, stdev= 4.69, samples=86 lat (msec) : 10=0.39%, 20=11.46%, 50=46.61%, 100=27.21%, 250=13.93% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.76%, ctx=1199, 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=543KiB/s (557kB/s), 130KiB/s-144KiB/s (133kB/s-148kB/s), io=23.4MiB (24.5MB), run=43398-44071msec WRITE: bw=572KiB/s (586kB/s), 139KiB/s-148KiB/s (142kB/s-152kB/s), io=24.6MiB (25.8MB), run=43398-44071msec 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=178954: Sat Sep 5 01:59:32 2026 read: IOPS=2, BW=2259KiB/s (2313kB/s)(7168KiB/3173msec) clat (usec): min=672, max=240882, avg=161578.52, stdev=79084.11 lat (usec): min=673, max=240883, avg=161579.98, stdev=79083.96 clat percentiles (usec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[152044], | 30.00th=[158335], 40.00th=[158335], 50.00th=[170918], 60.00th=[175113], | 70.00th=[175113], 80.00th=[231736], 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= 3524, max= 4185, per=79.33%, avg=3854.50, stdev=467.40, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1614KiB/s (1652kB/s)(5120KiB/3173msec); 0 zone resets clat (msec): min=234, max=512, avg=369.12, stdev=113.46 lat (msec): min=234, max=512, avg=369.23, stdev=113.46 clat percentiles (msec): | 1.00th=[ 234], 5.00th=[ 234], 10.00th=[ 234], 20.00th=[ 234], | 30.00th=[ 275], 40.00th=[ 275], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 1935, max= 4079, per=39.42%, avg=2681.67, stdev=1211.08, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=13.30%, ctx=178, 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=178955: Sat Sep 5 01:59:32 2026 read: IOPS=0, BW=486KiB/s (498kB/s)(2048KiB/4214msec) clat (msec): min=235, max=364, avg=300.05, stdev=91.31 lat (msec): min=235, max=364, avg=300.05, stdev=91.31 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 1497, max= 2035, per=36.34%, avg=1766.00, stdev=380.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2430KiB/s (2488kB/s)(10.0MiB/4214msec); 0 zone resets clat (msec): min=146, max=596, avg=356.74, stdev=144.87 lat (msec): min=146, max=596, avg=356.84, stdev=144.88 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 232], | 30.00th=[ 253], 40.00th=[ 300], 50.00th=[ 321], 60.00th=[ 347], | 70.00th=[ 355], 80.00th=[ 447], 90.00th=[ 575], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1935, max= 4047, per=38.25%, avg=2601.83, stdev=932.47, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=25.00%, 500=58.33%, 750=16.67% cpu : usr=0.02%, sys=10.70%, ctx=181, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178956: Sat Sep 5 01:59:32 2026 read: IOPS=1, BW=1745KiB/s (1787kB/s)(6144KiB/3520msec) clat (usec): min=574, max=551887, avg=169813.93, stdev=201195.45 lat (usec): min=575, max=551887, avg=169815.16, stdev=201195.12 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 35390], | 30.00th=[ 35390], 40.00th=[ 72877], 50.00th=[ 72877], 60.00th=[175113], | 70.00th=[183501], 80.00th=[183501], 90.00th=[549454], 95.00th=[549454], | 99.00th=[549454], 99.50th=[549454], 99.90th=[549454], 99.95th=[549454], | 99.99th=[549454] bw ( KiB/s): min= 2031, max= 3524, per=49.54%, avg=2407.25, stdev=744.51, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1745KiB/s (1787kB/s)(6144KiB/3520msec); 0 zone resets clat (msec): min=287, max=449, avg=387.27, stdev=59.07 lat (msec): min=287, max=449, avg=387.36, stdev=59.07 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 397], | 70.00th=[ 443], 80.00th=[ 443], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1412, max= 4071, per=32.96%, avg=2242.20, stdev=1049.20, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 100=8.33%, 250=16.67%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=9.29%, ctx=128, 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=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=178957: Sat Sep 5 01:59:32 2026 read: IOPS=1, BW=1243KiB/s (1273kB/s)(5120KiB/4120msec) clat (usec): min=350, max=243176, avg=74077.59, stdev=109006.83 lat (usec): min=350, max=243177, avg=74078.37, stdev=109006.91 clat percentiles (usec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 519], 40.00th=[ 519], 50.00th=[ 519], 60.00th=[ 519], | 70.00th=[125305], 80.00th=[125305], 90.00th=[242222], 95.00th=[242222], | 99.00th=[242222], 99.50th=[242222], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1740KiB/s (1782kB/s)(7168KiB/4120msec); 0 zone resets clat (msec): min=188, max=1277, avg=471.57, stdev=390.65 lat (msec): min=189, max=1277, avg=471.64, stdev=390.66 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 201], | 30.00th=[ 266], 40.00th=[ 266], 50.00th=[ 300], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 667], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 1762, max= 4047, per=34.72%, avg=2362.00, stdev=948.43, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=33.33%, 500=25.00%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=8.57%, ctx=100, 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=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=4860KiB/s (4977kB/s), 486KiB/s-2259KiB/s (498kB/s-2313kB/s), io=20.0MiB (20.0MB), run=3173-4214msec WRITE: bw=6804KiB/s (6967kB/s), 1614KiB/s-2430KiB/s (1652kB/s-2488kB/s), io=28.0MiB (29.4MB), run=3173-4214msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178958: Sat Sep 5 01:59:33 2026 read: IOPS=1, BW=1613KiB/s (1651kB/s)(7168KiB/4445msec) clat (msec): min=105, max=338, avg=164.30, stdev=89.06 lat (msec): min=105, max=338, avg=164.31, stdev=89.06 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 109], | 30.00th=[ 111], 40.00th=[ 111], 50.00th=[ 112], 60.00th=[ 142], | 70.00th=[ 142], 80.00th=[ 232], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1709, max= 4071, per=70.19%, avg=2905.25, stdev=1205.36, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1152KiB/s (1180kB/s)(5120KiB/4445msec); 0 zone resets clat (msec): min=155, max=1143, avg=597.18, stdev=368.42 lat (msec): min=160, max=1143, avg=598.10, stdev=367.20 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 1889, max= 2035, per=33.92%, avg=1965.50, stdev=80.45, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=58.33%, 500=16.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.89%, ctx=87, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178959: Sat Sep 5 01:59:33 2026 read: IOPS=0, BW=444KiB/s (455kB/s)(2048KiB/4608msec) clat (msec): min=103, max=234, avg=168.73, stdev=92.42 lat (msec): min=103, max=234, avg=168.73, stdev=92.42 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 104], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 234], 90.00th=[ 234], 95.00th=[ 234], | 99.00th=[ 234], 99.50th=[ 234], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 1544, max= 1903, per=41.64%, avg=1723.50, stdev=253.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2222KiB/s (2276kB/s)(10.0MiB/4608msec); 0 zone resets clat (msec): min=99, max=943, avg=418.14, stdev=257.83 lat (msec): min=99, max=943, avg=418.23, stdev=257.81 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 102], | 30.00th=[ 271], 40.00th=[ 321], 50.00th=[ 351], 60.00th=[ 388], | 70.00th=[ 485], 80.00th=[ 567], 90.00th=[ 659], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1889, max= 4071, per=54.64%, avg=3165.80, stdev=1124.35, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.07%, sys=5.36%, ctx=124, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178960: Sat Sep 5 01:59:33 2026 read: IOPS=1, BW=1455KiB/s (1490kB/s)(6144KiB/4222msec) clat (msec): min=70, max=647, avg=280.97, stdev=218.60 lat (msec): min=70, max=647, avg=280.97, stdev=218.60 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 127], 50.00th=[ 127], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 359], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 1889, max= 1992, per=46.65%, avg=1930.75, stdev=45.94, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1455KiB/s (1490kB/s)(6144KiB/4222msec); 0 zone resets clat (msec): min=152, max=669, avg=369.47, stdev=230.25 lat (msec): min=152, max=669, avg=369.62, stdev=230.30 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 174], 50.00th=[ 174], 60.00th=[ 510], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1903, max= 2035, per=33.73%, avg=1954.40, stdev=57.95, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=33.33% cpu : usr=0.00%, sys=3.51%, ctx=76, 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=178961: Sat Sep 5 01:59:33 2026 read: IOPS=1, BW=1035KiB/s (1060kB/s)(5120KiB/4948msec) clat (msec): min=77, max=724, avg=393.61, stdev=251.79 lat (msec): min=77, max=724, avg=393.61, stdev=251.79 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 79], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 2031, max= 3806, per=63.40%, avg=2624.00, stdev=1023.64, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1449KiB/s (1483kB/s)(7168KiB/4948msec); 0 zone resets clat (msec): min=92, max=1091, avg=377.39, stdev=344.74 lat (msec): min=92, max=1092, avg=377.48, stdev=344.73 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 93], 10.00th=[ 93], 20.00th=[ 105], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 334], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 468], 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= 1939, max= 4063, per=51.10%, avg=2960.75, stdev=1129.95, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=2.04%, ctx=69, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4139KiB/s (4238kB/s), 444KiB/s-1613KiB/s (455kB/s-1651kB/s), io=20.0MiB (20.0MB), run=4222-4948msec WRITE: bw=5795KiB/s (5934kB/s), 1152KiB/s-2222KiB/s (1180kB/s-2276kB/s), io=28.0MiB (29.4MB), run=4222-4948msec 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=178969: Sat Sep 5 01:59:49 2026 read: IOPS=1, BW=4255KiB/s (4357kB/s)(12.0MiB/2888msec) clat (msec): min=874, max=1003, avg=922.10, stdev=71.11 lat (msec): min=874, max=1003, avg=922.10, stdev=71.11 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 885], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8047, max= 8094, per=100.00%, avg=8070.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.03%, sys=11.47%, ctx=256, 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=178970: Sat Sep 5 01:59:49 2026 read: IOPS=0, BW=1109KiB/s (1135kB/s)(4096KiB/3694msec) clat (nsec): min=1014.1M, max=1014.1M, avg=1014051258.00, stdev= 0.00 lat (nsec): min=1014.1M, max=1014.1M, avg=1014053975.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1011], 5.00th=[ 1011], 10.00th=[ 1011], 20.00th=[ 1011], | 30.00th=[ 1011], 40.00th=[ 1011], 50.00th=[ 1011], 60.00th=[ 1011], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2218KiB/s (2271kB/s)(8192KiB/3694msec); 0 zone resets clat (msec): min=1232, max=1387, avg=1309.94, stdev=110.16 lat (msec): min=1233, max=1388, avg=1310.78, stdev=109.42 clat percentiles (msec): | 1.00th=[ 1234], 5.00th=[ 1234], 10.00th=[ 1234], 20.00th=[ 1234], | 30.00th=[ 1234], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1385], | 70.00th=[ 1385], 80.00th=[ 1385], 90.00th=[ 1385], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 8110, max= 8110, per=95.64%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 2000=100.00% cpu : usr=0.27%, sys=5.58%, ctx=199, 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=178971: Sat Sep 5 01:59:49 2026 write: IOPS=0, BW=3180KiB/s (3256kB/s)(12.0MiB/3864msec); 0 zone resets clat (msec): min=894, max=1578, avg=1225.96, stdev=342.73 lat (msec): min=894, max=1580, avg=1226.82, stdev=343.45 clat percentiles (msec): | 1.00th=[ 894], 5.00th=[ 894], 10.00th=[ 894], 20.00th=[ 894], | 30.00th=[ 894], 40.00th=[ 1200], 50.00th=[ 1200], 60.00th=[ 1200], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8047, max= 8143, per=95.46%, avg=8095.00, stdev=67.88, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.41%, ctx=42, 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=178972: Sat Sep 5 01:59:49 2026 write: IOPS=0, BW=3408KiB/s (3489kB/s)(12.0MiB/3606msec); 0 zone resets clat (msec): min=528, max=1523, avg=1183.82, stdev=567.45 lat (msec): min=529, max=1523, avg=1184.36, stdev=566.95 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 1502], 50.00th=[ 1502], 60.00th=[ 1502], | 70.00th=[ 1519], 80.00th=[ 1519], 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= 8126, max= 8159, per=96.02%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.27%, ctx=40, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=4435KiB/s (4542kB/s), 1109KiB/s-4255KiB/s (1135kB/s-4357kB/s), io=16.0MiB (16.8MB), run=2888-3694msec WRITE: bw=8480KiB/s (8684kB/s), 2218KiB/s-3408KiB/s (2271kB/s-3489kB/s), io=32.0MiB (33.6MB), run=3606-3864msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178973: Sat Sep 5 01:59:49 2026 read: IOPS=0, BW=3887KiB/s (3981kB/s)(12.0MiB/3161msec) clat (msec): min=1006, max=1051, avg=1024.39, stdev=23.64 lat (msec): min=1006, max=1051, avg=1024.39, stdev=23.64 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1020], 50.00th=[ 1020], 60.00th=[ 1020], | 70.00th=[ 1053], 80.00th=[ 1053], 90.00th=[ 1053], 95.00th=[ 1053], | 99.00th=[ 1053], 99.50th=[ 1053], 99.90th=[ 1053], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7876, max= 8126, per=100.00%, avg=8001.00, stdev=176.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 2000=100.00% cpu : usr=0.00%, sys=1.90%, ctx=46, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178974: Sat Sep 5 01:59:49 2026 read: IOPS=0, BW=995KiB/s (1019kB/s)(4096KiB/4117msec) clat (nsec): min=2040.1M, max=2040.1M, avg=2040101797.00, stdev= 0.00 lat (nsec): min=2040.1M, max=2040.1M, avg=2040104440.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2039], 5.00th=[ 2039], 10.00th=[ 2039], 20.00th=[ 2039], | 30.00th=[ 2039], 40.00th=[ 2039], 50.00th=[ 2039], 60.00th=[ 2039], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1990KiB/s (2038kB/s)(8192KiB/4117msec); 0 zone resets clat (msec): min=670, max=1319, avg=995.14, stdev=458.46 lat (msec): min=674, max=1319, avg=997.24, stdev=455.94 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.72%, ctx=49, 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=178975: Sat Sep 5 01:59:49 2026 write: IOPS=0, BW=2922KiB/s (2992kB/s)(12.0MiB/4206msec); 0 zone resets clat (msec): min=307, max=2888, avg=1375.48, stdev=1346.69 lat (msec): min=307, max=2890, avg=1376.52, stdev=1347.89 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 309], 10.00th=[ 309], 20.00th=[ 309], | 30.00th=[ 309], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 2903], 80.00th=[ 2903], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 8031, max= 8175, per=100.00%, avg=8103.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.21%, ctx=52, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178976: Sat Sep 5 01:59:49 2026 write: IOPS=0, BW=3548KiB/s (3634kB/s)(12.0MiB/3463msec); 0 zone resets clat (msec): min=837, max=1621, avg=1118.13, stdev=436.81 lat (msec): min=838, max=1622, avg=1118.75, stdev=437.24 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7699, max= 8159, per=100.00%, avg=7929.00, stdev=325.27, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.32%, sys=3.32%, ctx=54, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3980KiB/s (4075kB/s), 995KiB/s-3887KiB/s (1019kB/s-3981kB/s), io=16.0MiB (16.8MB), run=3161-4117msec WRITE: bw=7791KiB/s (7978kB/s), 1990KiB/s-3548KiB/s (2038kB/s-3634kB/s), io=32.0MiB (33.6MB), run=3463-4206msec