== sanity test 398b: DIO and buffer IO race ============== 11:06:18 (1789139178) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.74482 s, 10.6 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=179721: Fri Sep 11 11:08:26 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(5992KiB/110571msec) clat (usec): min=38, max=484992, avg=40900.41, stdev=28162.27 lat (usec): min=38, max=484993, avg=40902.06, stdev=28162.24 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 10159], 10.00th=[ 16188], 20.00th=[ 20579], | 30.00th=[ 25560], 40.00th=[ 30016], 50.00th=[ 35914], 60.00th=[ 41681], | 70.00th=[ 47973], 80.00th=[ 57410], 90.00th=[ 72877], 95.00th=[ 88605], | 99.00th=[135267], 99.50th=[152044], 99.90th=[181404], 99.95th=[484443], | 99.99th=[484443] bw ( KiB/s): min= 7, max= 119, per=24.97%, avg=53.69, stdev=20.35, samples=219 iops : min= 1, max= 29, avg=12.79, stdev= 5.13, samples=219 write: IOPS=14, BW=56.9KiB/s (58.3kB/s)(6296KiB/110571msec); 0 zone resets clat (usec): min=1059, max=422253, avg=31221.26, stdev=33489.08 lat (usec): min=1061, max=422255, avg=31226.83, stdev=33490.45 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1467], 10.00th=[ 2089], 20.00th=[ 3949], | 30.00th=[ 6587], 40.00th=[ 14091], 50.00th=[ 22676], 60.00th=[ 30540], | 70.00th=[ 39584], 80.00th=[ 52691], 90.00th=[ 76022], 95.00th=[ 95945], | 99.00th=[135267], 99.50th=[164627], 99.90th=[231736], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 15, max= 119, per=25.06%, avg=56.63, stdev=22.69, samples=218 iops : min= 3, max= 29, avg=13.52, stdev= 5.71, samples=218 lat (usec) : 50=0.20%, 100=1.60%, 250=0.23%, 500=0.13%, 1000=0.03% lat (msec) : 2=4.36%, 4=6.12%, 10=8.33%, 20=12.24%, 50=41.83% lat (msec) : 100=21.26%, 250=3.61%, 500=0.07% cpu : usr=0.08%, sys=5.87%, ctx=6832, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179722: Fri Sep 11 11:08:26 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(5940KiB/109650msec) clat (usec): min=41, max=593582, avg=41321.28, stdev=31734.95 lat (usec): min=42, max=593583, avg=41323.10, stdev=31735.08 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 10814], 10.00th=[ 15795], 20.00th=[ 21103], | 30.00th=[ 25035], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 40109], | 70.00th=[ 46924], 80.00th=[ 57934], 90.00th=[ 73925], 95.00th=[ 91751], | 99.00th=[145753], 99.50th=[173016], 99.90th=[283116], 99.95th=[591397], | 99.99th=[591397] bw ( KiB/s): min= 8, max= 119, per=25.05%, avg=53.87, stdev=20.65, samples=216 iops : min= 2, max= 29, avg=12.82, stdev= 5.20, samples=216 write: IOPS=14, BW=57.9KiB/s (59.3kB/s)(6348KiB/109650msec); 0 zone resets clat (usec): min=1029, max=451933, avg=30319.64, stdev=31326.46 lat (usec): min=1030, max=451934, avg=30322.78, stdev=31325.82 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1401], 10.00th=[ 1958], 20.00th=[ 3818], | 30.00th=[ 7308], 40.00th=[ 15401], 50.00th=[ 22938], 60.00th=[ 30016], | 70.00th=[ 38536], 80.00th=[ 50594], 90.00th=[ 71828], 95.00th=[ 89654], | 99.00th=[122160], 99.50th=[139461], 99.90th=[214959], 99.95th=[450888], | 99.99th=[450888] bw ( KiB/s): min= 7, max= 123, per=25.41%, avg=57.42, stdev=24.00, samples=216 iops : min= 1, max= 30, avg=13.72, stdev= 6.01, samples=216 lat (usec) : 50=0.20%, 100=1.43%, 250=0.10%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.47%, 4=5.05%, 10=7.94%, 20=12.01%, 50=44.27% lat (msec) : 100=20.21%, 250=3.09%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=5.94%, ctx=6884, 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=179723: Fri Sep 11 11:08:26 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(6028KiB/111233msec) clat (usec): min=37, max=272219, avg=40435.93, stdev=26886.87 lat (usec): min=37, max=272221, avg=40444.44, stdev=26891.63 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11207], 10.00th=[ 15139], 20.00th=[ 20317], | 30.00th=[ 24773], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 40633], | 70.00th=[ 47973], 80.00th=[ 57410], 90.00th=[ 71828], 95.00th=[ 88605], | 99.00th=[141558], 99.50th=[154141], 99.90th=[227541], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 15, max= 120, per=25.05%, avg=53.85, stdev=19.97, samples=219 iops : min= 3, max= 30, avg=12.82, stdev= 5.03, samples=219 write: IOPS=14, BW=56.3KiB/s (57.6kB/s)(6260KiB/111233msec); 0 zone resets clat (usec): min=989, max=578489, avg=32016.13, stdev=34003.94 lat (usec): min=990, max=578492, avg=32021.15, stdev=34005.98 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1467], 10.00th=[ 2212], 20.00th=[ 3916], | 30.00th=[ 7439], 40.00th=[ 16188], 50.00th=[ 23725], 60.00th=[ 31589], | 70.00th=[ 41157], 80.00th=[ 53740], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[137364], 99.50th=[145753], 99.90th=[208667], 99.95th=[574620], | 99.99th=[574620] bw ( KiB/s): min= 8, max= 151, per=24.72%, avg=55.87, stdev=23.55, samples=219 iops : min= 2, max= 37, avg=13.33, stdev= 5.89, samples=219 lat (usec) : 50=0.23%, 100=1.24%, 250=0.10%, 1000=0.07% lat (msec) : 2=4.52%, 4=5.86%, 10=7.91%, 20=12.04%, 50=43.29% lat (msec) : 100=21.29%, 250=3.39%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=5.83%, ctx=6906, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179724: Fri Sep 11 11:08:26 2026 read: IOPS=13, BW=54.9KiB/s (56.2kB/s)(6052KiB/110277msec) clat (usec): min=37, max=226107, avg=40072.97, stdev=26701.58 lat (usec): min=38, max=226110, avg=40075.17, stdev=26701.70 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 9241], 10.00th=[ 15270], 20.00th=[ 20317], | 30.00th=[ 24511], 40.00th=[ 29230], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 47449], 80.00th=[ 56361], 90.00th=[ 71828], 95.00th=[ 92799], | 99.00th=[131597], 99.50th=[160433], 99.90th=[185598], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 7, max= 119, per=25.38%, avg=54.56, stdev=20.48, samples=217 iops : min= 1, max= 29, avg=13.00, stdev= 5.15, samples=217 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(6236KiB/110277msec); 0 zone resets clat (usec): min=989, max=599074, avg=31741.96, stdev=35895.40 lat (usec): min=991, max=599075, avg=31745.54, stdev=35894.62 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1434], 10.00th=[ 2073], 20.00th=[ 3851], | 30.00th=[ 6718], 40.00th=[ 14484], 50.00th=[ 22676], 60.00th=[ 30016], | 70.00th=[ 40109], 80.00th=[ 53740], 90.00th=[ 73925], 95.00th=[ 95945], | 99.00th=[158335], 99.50th=[173016], 99.90th=[238027], 99.95th=[599786], | 99.99th=[599786] bw ( KiB/s): min= 7, max= 151, per=24.83%, avg=56.11, stdev=24.26, samples=217 iops : min= 1, max= 37, avg=13.39, stdev= 6.08, samples=217 lat (usec) : 50=0.10%, 100=1.95%, 250=0.13%, 1000=0.03% lat (msec) : 2=4.79%, 4=5.79%, 10=7.91%, 20=12.11%, 50=42.74% lat (msec) : 100=20.25%, 250=4.17%, 750=0.03% cpu : usr=0.09%, sys=5.83%, ctx=6928, 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=216KiB/s (221kB/s), 54.2KiB/s-54.9KiB/s (55.5kB/s-56.2kB/s), io=23.4MiB (24.6MB), run=109650-111233msec WRITE: bw=226KiB/s (231kB/s), 56.3KiB/s-57.9KiB/s (57.6kB/s-59.3kB/s), io=24.6MiB (25.7MB), run=109650-111233msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179716: Fri Sep 11 11:09:09 2026 read: IOPS=9, BW=39.1KiB/s (40.0kB/s)(5992KiB/153207msec) clat (msec): min=5, max=703, avg=39.51, stdev=37.77 lat (msec): min=5, max=703, avg=39.51, stdev=37.77 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 86], 95.00th=[ 111], | 99.00th=[ 157], 99.50th=[ 197], 99.90th=[ 288], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 119, per=25.27%, avg=39.17, stdev=23.51, samples=298 iops : min= 1, max= 29, avg= 9.13, stdev= 5.91, samples=298 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6296KiB/153207msec); 0 zone resets clat (msec): min=10, max=324, avg=59.44, stdev=38.11 lat (msec): min=10, max=324, avg=59.44, stdev=38.11 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 108], 95.00th=[ 136], | 99.00th=[ 199], 99.50th=[ 224], 99.90th=[ 288], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 127, per=25.23%, avg=40.87, stdev=21.47, samples=300 iops : min= 1, max= 31, avg= 9.56, stdev= 5.39, samples=300 lat (msec) : 10=1.76%, 20=16.24%, 50=46.29%, 100=25.88%, 250=9.57% lat (msec) : 500=0.23%, 750=0.03% cpu : usr=0.06%, sys=2.02%, ctx=4767, 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=179717: Fri Sep 11 11:09:09 2026 read: IOPS=9, BW=38.5KiB/s (39.4kB/s)(5940KiB/154332msec) clat (msec): min=5, max=787, avg=40.30, stdev=39.77 lat (msec): min=5, max=787, avg=40.30, stdev=39.77 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 85], 95.00th=[ 110], | 99.00th=[ 184], 99.50th=[ 215], 99.90th=[ 292], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 135, per=24.87%, avg=38.55, stdev=24.50, samples=300 iops : min= 1, max= 33, avg= 8.98, stdev= 6.15, samples=300 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6348KiB/154332msec); 0 zone resets clat (msec): min=12, max=382, avg=59.23, stdev=38.96 lat (msec): min=12, max=382, avg=59.24, stdev=38.96 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 55], | 70.00th=[ 67], 80.00th=[ 84], 90.00th=[ 111], 95.00th=[ 136], | 99.00th=[ 197], 99.50th=[ 241], 99.90th=[ 292], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 119, per=25.31%, avg=41.00, stdev=22.29, samples=301 iops : min= 1, max= 29, avg= 9.58, stdev= 5.60, samples=301 lat (msec) : 10=1.92%, 20=15.49%, 50=47.01%, 100=25.29%, 250=10.09% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=1.98%, ctx=4840, 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=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=179718: Fri Sep 11 11:09:09 2026 read: IOPS=9, BW=39.4KiB/s (40.3kB/s)(6028KiB/153086msec) clat (msec): min=5, max=288, avg=39.82, stdev=34.88 lat (msec): min=5, max=288, avg=39.83, stdev=34.88 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 57], 90.00th=[ 85], 95.00th=[ 114], | 99.00th=[ 180], 99.50th=[ 201], 99.90th=[ 245], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 7, max= 143, per=25.64%, avg=39.75, stdev=23.56, samples=296 iops : min= 1, max= 35, avg= 9.28, stdev= 5.94, samples=296 write: IOPS=10, BW=40.9KiB/s (41.9kB/s)(6260KiB/153086msec); 0 zone resets clat (msec): min=10, max=835, avg=59.19, stdev=44.21 lat (msec): min=10, max=835, avg=59.19, stdev=44.21 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 55], | 70.00th=[ 67], 80.00th=[ 83], 90.00th=[ 108], 95.00th=[ 134], | 99.00th=[ 199], 99.50th=[ 232], 99.90th=[ 506], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 119, per=25.05%, avg=40.59, stdev=22.76, samples=301 iops : min= 1, max= 29, avg= 9.49, stdev= 5.71, samples=301 lat (msec) : 10=2.15%, 20=15.17%, 50=47.88%, 100=25.16%, 250=9.38% lat (msec) : 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=2.00%, ctx=4772, 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=179719: Fri Sep 11 11:09:09 2026 read: IOPS=9, BW=39.6KiB/s (40.5kB/s)(6052KiB/152913msec) clat (msec): min=6, max=249, avg=40.83, stdev=33.88 lat (msec): min=6, max=249, avg=40.83, stdev=33.88 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 46], 80.00th=[ 61], 90.00th=[ 85], 95.00th=[ 111], | 99.00th=[ 163], 99.50th=[ 203], 99.90th=[ 234], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 7, max= 167, per=25.67%, avg=39.79, stdev=23.92, samples=296 iops : min= 1, max= 41, avg= 9.29, stdev= 6.01, samples=296 write: IOPS=10, BW=40.8KiB/s (41.8kB/s)(6236KiB/152913msec); 0 zone resets clat (msec): min=13, max=829, avg=58.17, stdev=43.08 lat (msec): min=13, max=829, avg=58.17, stdev=43.08 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 55], | 70.00th=[ 67], 80.00th=[ 81], 90.00th=[ 104], 95.00th=[ 130], | 99.00th=[ 197], 99.50th=[ 220], 99.90th=[ 518], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 126, per=25.14%, avg=40.73, stdev=22.13, samples=298 iops : min= 1, max= 31, avg= 9.52, stdev= 5.56, samples=298 lat (msec) : 10=2.28%, 20=14.39%, 50=47.01%, 100=27.54%, 250=8.66% lat (msec) : 500=0.07%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=2.05%, ctx=4774, 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=156KiB/s (159kB/s), 38.5KiB/s-39.6KiB/s (39.4kB/s-40.5kB/s), io=23.4MiB (24.6MB), run=152913-154332msec WRITE: bw=163KiB/s (167kB/s), 40.8KiB/s-41.1KiB/s (41.8kB/s-42.1kB/s), io=24.6MiB (25.7MB), run=152913-154332msec 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=179763: Fri Sep 11 11:09:54 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(5920KiB/34439msec) clat (usec): min=53, max=222531, avg=51966.25, stdev=33973.06 lat (usec): min=54, max=222533, avg=51967.94, stdev=33972.94 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 83], 10.00th=[ 19006], 20.00th=[ 27657], | 30.00th=[ 35390], 40.00th=[ 40633], 50.00th=[ 46400], 60.00th=[ 53216], | 70.00th=[ 61080], 80.00th=[ 71828], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[185598], 99.50th=[217056], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 31, max= 397, per=25.64%, avg=170.52, stdev=68.49, samples=67 iops : min= 1, max= 24, avg= 9.82, stdev= 4.32, samples=67 write: IOPS=11, BW=185KiB/s (189kB/s)(6368KiB/34439msec); 0 zone resets clat (usec): min=1352, max=238730, avg=37949.50, stdev=38308.11 lat (usec): min=1353, max=238732, avg=37983.11, stdev=38326.76 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2442], 10.00th=[ 3556], 20.00th=[ 6718], | 30.00th=[ 10552], 40.00th=[ 17433], 50.00th=[ 24773], 60.00th=[ 34866], | 70.00th=[ 47973], 80.00th=[ 63177], 90.00th=[ 92799], 95.00th=[110625], | 99.00th=[166724], 99.50th=[173016], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 31, max= 377, per=26.47%, avg=185.04, stdev=70.56, samples=67 iops : min= 1, max= 23, avg=10.75, stdev= 4.47, samples=67 lat (usec) : 100=2.73%, 250=0.52%, 500=0.26% lat (msec) : 2=1.17%, 4=4.30%, 10=8.85%, 20=9.90%, 50=36.20% lat (msec) : 100=28.91%, 250=7.16% cpu : usr=0.08%, sys=5.46%, ctx=1848, 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=179764: Fri Sep 11 11:09:54 2026 read: IOPS=10, BW=160KiB/s (164kB/s)(5744KiB/35800msec) clat (usec): min=47, max=218975, avg=54757.18, stdev=37743.88 lat (usec): min=48, max=218977, avg=54759.04, stdev=37744.38 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 89], 10.00th=[ 18220], 20.00th=[ 27395], | 30.00th=[ 34341], 40.00th=[ 41681], 50.00th=[ 48497], 60.00th=[ 55313], | 70.00th=[ 62653], 80.00th=[ 72877], 90.00th=[101188], 95.00th=[137364], | 99.00th=[204473], 99.50th=[212861], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 316, per=23.81%, avg=158.33, stdev=69.00, samples=70 iops : min= 1, max= 19, avg= 9.06, stdev= 4.38, samples=70 write: IOPS=11, BW=183KiB/s (187kB/s)(6544KiB/35800msec); 0 zone resets clat (usec): min=1519, max=195127, avg=39134.14, stdev=39388.80 lat (usec): min=1521, max=195130, avg=39138.00, stdev=39388.56 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2671], 10.00th=[ 3654], 20.00th=[ 6194], | 30.00th=[ 9896], 40.00th=[ 17695], 50.00th=[ 26346], 60.00th=[ 36439], | 70.00th=[ 50594], 80.00th=[ 69731], 90.00th=[ 99091], 95.00th=[123208], | 99.00th=[177210], 99.50th=[189793], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 506, per=25.63%, avg=179.14, stdev=84.41, samples=70 iops : min= 1, max= 31, avg=10.37, stdev= 5.34, samples=70 lat (usec) : 50=0.13%, 100=2.21%, 250=0.39%, 500=0.13% lat (msec) : 2=1.17%, 4=5.21%, 10=9.90%, 20=9.11%, 50=33.07% lat (msec) : 100=28.78%, 250=9.90% cpu : usr=0.09%, sys=5.39%, ctx=1860, 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=179765: Fri Sep 11 11:09:54 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(6256KiB/36010msec) clat (usec): min=44, max=281055, avg=52421.83, stdev=34133.55 lat (usec): min=44, max=281056, avg=52423.83, stdev=34133.76 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 22152], 20.00th=[ 27395], | 30.00th=[ 32375], 40.00th=[ 38536], 50.00th=[ 48497], 60.00th=[ 57410], | 70.00th=[ 63701], 80.00th=[ 73925], 90.00th=[ 90702], 95.00th=[106431], | 99.00th=[179307], 99.50th=[225444], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 62, max= 348, per=25.77%, avg=171.40, stdev=68.61, samples=70 iops : min= 3, max= 21, avg= 9.89, stdev= 4.35, samples=70 write: IOPS=10, BW=168KiB/s (172kB/s)(6032KiB/36010msec); 0 zone resets clat (usec): min=1486, max=255908, avg=40776.85, stdev=39726.57 lat (usec): min=1487, max=255912, avg=40792.15, stdev=39727.53 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2704], 10.00th=[ 4178], 20.00th=[ 7635], | 30.00th=[ 12518], 40.00th=[ 21627], 50.00th=[ 29230], 60.00th=[ 37487], | 70.00th=[ 50070], 80.00th=[ 66847], 90.00th=[ 92799], 95.00th=[121111], | 99.00th=[175113], 99.50th=[221250], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 377, per=23.54%, avg=164.54, stdev=72.68, samples=69 iops : min= 1, max= 23, avg= 9.45, stdev= 4.60, samples=69 lat (usec) : 50=0.26%, 100=2.99%, 250=0.26% lat (msec) : 2=1.04%, 4=3.78%, 10=8.33%, 20=6.38%, 50=37.63% lat (msec) : 100=31.90%, 250=7.16%, 500=0.26% cpu : usr=0.05%, sys=5.10%, ctx=1847, 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=179766: Fri Sep 11 11:09:54 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33973msec) clat (usec): min=41, max=212212, avg=50533.26, stdev=34383.87 lat (usec): min=41, max=212214, avg=50535.40, stdev=34383.57 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 121], 20.00th=[ 25035], | 30.00th=[ 32113], 40.00th=[ 39060], 50.00th=[ 45351], 60.00th=[ 53216], | 70.00th=[ 63701], 80.00th=[ 73925], 90.00th=[ 93848], 95.00th=[117965], | 99.00th=[162530], 99.50th=[196084], 99.90th=[212861], 99.95th=[212861], | 99.99th=[212861] bw ( KiB/s): min= 31, max= 318, per=26.56%, avg=176.59, stdev=58.61, samples=66 iops : min= 1, max= 19, avg=10.21, stdev= 3.66, samples=66 write: IOPS=11, BW=184KiB/s (189kB/s)(6256KiB/33973msec); 0 zone resets clat (usec): min=1538, max=234427, avg=37798.10, stdev=40655.74 lat (usec): min=1539, max=234428, avg=37801.39, stdev=40655.14 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2311], 10.00th=[ 3884], 20.00th=[ 6194], | 30.00th=[ 8848], 40.00th=[ 13042], 50.00th=[ 23725], 60.00th=[ 31327], | 70.00th=[ 43254], 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[187696], 99.50th=[198181], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 62, max= 601, per=26.42%, avg=184.68, stdev=88.74, samples=66 iops : min= 3, max= 37, avg=10.71, stdev= 5.60, samples=66 lat (usec) : 50=0.26%, 100=4.17%, 250=0.91% lat (msec) : 2=1.30%, 4=4.43%, 10=11.46%, 20=7.81%, 50=35.03% lat (msec) : 100=25.65%, 250=8.98% cpu : usr=0.06%, sys=5.22%, ctx=1713, 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=665KiB/s (681kB/s), 160KiB/s-178KiB/s (164kB/s-182kB/s), io=23.4MiB (24.5MB), run=33973-36010msec WRITE: bw=700KiB/s (717kB/s), 168KiB/s-185KiB/s (172kB/s-189kB/s), io=24.6MiB (25.8MB), run=33973-36010msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179769: Fri Sep 11 11:10:06 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5920KiB/47622msec) clat (msec): min=8, max=278, avg=52.96, stdev=46.26 lat (msec): min=8, max=278, avg=52.96, stdev=46.26 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 35], 60.00th=[ 45], | 70.00th=[ 56], 80.00th=[ 74], 90.00th=[ 117], 95.00th=[ 165], | 99.00th=[ 218], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 29, max= 352, per=24.32%, avg=122.11, stdev=77.04, samples=93 iops : min= 1, max= 22, avg= 6.85, stdev= 4.89, samples=93 write: IOPS=8, BW=134KiB/s (137kB/s)(6368KiB/47622msec); 0 zone resets clat (msec): min=14, max=255, avg=70.09, stdev=43.36 lat (msec): min=14, max=255, avg=70.09, stdev=43.36 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 38], | 30.00th=[ 44], 40.00th=[ 50], 50.00th=[ 54], 60.00th=[ 63], | 70.00th=[ 77], 80.00th=[ 103], 90.00th=[ 136], 95.00th=[ 161], | 99.00th=[ 236], 99.50th=[ 251], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 21, max= 288, per=25.13%, avg=132.96, stdev=73.30, samples=93 iops : min= 1, max= 18, avg= 7.54, stdev= 4.65, samples=93 lat (msec) : 10=0.26%, 20=8.59%, 50=44.66%, 100=29.04%, 250=17.06% lat (msec) : 500=0.39% cpu : usr=0.05%, sys=1.79%, ctx=1153, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179770: Fri Sep 11 11:10:06 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5744KiB/47575msec) clat (msec): min=9, max=271, avg=49.19, stdev=42.39 lat (msec): min=9, max=271, avg=49.19, stdev=42.39 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 51], 80.00th=[ 73], 90.00th=[ 109], 95.00th=[ 153], | 99.00th=[ 201], 99.50th=[ 215], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 29, max= 415, per=24.62%, avg=123.59, stdev=85.58, samples=90 iops : min= 1, max= 25, avg= 6.94, stdev= 5.34, samples=90 write: IOPS=8, BW=138KiB/s (141kB/s)(6544KiB/47575msec); 0 zone resets clat (msec): min=17, max=304, avg=72.82, stdev=50.78 lat (msec): min=17, max=304, avg=72.84, stdev=50.77 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 55], 60.00th=[ 64], | 70.00th=[ 79], 80.00th=[ 110], 90.00th=[ 146], 95.00th=[ 182], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 349, per=25.68%, avg=135.87, stdev=77.38, samples=93 iops : min= 1, max= 21, avg= 7.72, stdev= 4.93, samples=93 lat (msec) : 10=0.39%, 20=8.59%, 50=46.74%, 100=27.08%, 250=16.41% lat (msec) : 500=0.78% cpu : usr=0.04%, sys=1.78%, ctx=1239, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179771: Fri Sep 11 11:10:06 2026 read: IOPS=8, BW=133KiB/s (137kB/s)(6256KiB/46898msec) clat (msec): min=8, max=234, avg=46.06, stdev=36.85 lat (msec): min=8, max=234, avg=46.06, stdev=36.85 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 47], 80.00th=[ 65], 90.00th=[ 102], 95.00th=[ 130], | 99.00th=[ 178], 99.50th=[ 232], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 378, per=27.00%, avg=135.53, stdev=86.35, samples=91 iops : min= 1, max= 23, avg= 7.68, stdev= 5.50, samples=91 write: IOPS=8, BW=129KiB/s (132kB/s)(6032KiB/46898msec); 0 zone resets clat (msec): min=17, max=331, avg=76.32, stdev=52.70 lat (msec): min=17, max=331, avg=76.33, stdev=52.70 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 39], | 30.00th=[ 43], 40.00th=[ 48], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 89], 80.00th=[ 108], 90.00th=[ 144], 95.00th=[ 182], | 99.00th=[ 279], 99.50th=[ 309], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 30, max= 351, per=23.98%, avg=126.88, stdev=67.92, samples=92 iops : min= 1, max= 21, avg= 7.15, stdev= 4.32, samples=92 lat (msec) : 10=0.39%, 20=9.11%, 50=48.44%, 100=24.87%, 250=16.41% lat (msec) : 500=0.78% cpu : usr=0.06%, sys=1.61%, ctx=1143, 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=179772: Fri Sep 11 11:10:06 2026 read: IOPS=7, BW=128KiB/s (131kB/s)(6032KiB/47237msec) clat (msec): min=9, max=275, avg=50.98, stdev=45.85 lat (msec): min=9, max=275, avg=50.99, stdev=45.85 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 40], | 70.00th=[ 50], 80.00th=[ 78], 90.00th=[ 122], 95.00th=[ 157], | 99.00th=[ 209], 99.50th=[ 259], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 29, max= 352, per=25.88%, avg=129.92, stdev=78.57, samples=91 iops : min= 1, max= 22, avg= 7.34, stdev= 4.97, samples=91 write: IOPS=8, BW=132KiB/s (136kB/s)(6256KiB/47237msec); 0 zone resets clat (msec): min=17, max=279, avg=71.42, stdev=43.70 lat (msec): min=17, max=279, avg=71.43, stdev=43.70 clat percentiles (msec): | 1.00th=[ 23], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 38], | 30.00th=[ 45], 40.00th=[ 51], 50.00th=[ 59], 60.00th=[ 67], | 70.00th=[ 81], 80.00th=[ 97], 90.00th=[ 136], 95.00th=[ 163], | 99.00th=[ 215], 99.50th=[ 249], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 31, max= 320, per=25.35%, avg=134.11, stdev=76.49, samples=92 iops : min= 1, max= 20, avg= 7.61, stdev= 4.87, samples=92 lat (msec) : 10=0.13%, 20=8.98%, 50=45.70%, 100=28.26%, 250=16.54% lat (msec) : 500=0.39% cpu : usr=0.06%, sys=1.67%, ctx=1175, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=503KiB/s (515kB/s), 121KiB/s-133KiB/s (124kB/s-137kB/s), io=23.4MiB (24.5MB), run=46898-47622msec WRITE: bw=529KiB/s (542kB/s), 129KiB/s-138KiB/s (132kB/s-141kB/s), io=24.6MiB (25.8MB), run=46898-47622msec 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=179786: Fri Sep 11 11:10:25 2026 read: IOPS=1, BW=1460KiB/s (1495kB/s)(7168KiB/4910msec) clat (msec): min=67, max=2380, avg=482.41, stdev=840.86 lat (msec): min=67, max=2380, avg=482.41, stdev=840.86 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 106], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 174], 60.00th=[ 249], | 70.00th=[ 249], 80.00th=[ 292], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 2011, max= 4140, per=100.00%, avg=3407.33, stdev=1209.75, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1043KiB/s (1068kB/s)(5120KiB/4910msec); 0 zone resets clat (msec): min=144, max=504, avg=297.25, stdev=162.48 lat (msec): min=144, max=504, avg=297.35, stdev=162.48 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 247], 60.00th=[ 247], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 506], 95.00th=[ 506], | 99.00th=[ 506], 99.50th=[ 506], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 2011, max= 3908, per=64.22%, avg=2498.25, stdev=939.91, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=2.75%, ctx=48, 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=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=179787: Fri Sep 11 11:10:25 2026 read: IOPS=0, BW=278KiB/s (285kB/s)(2048KiB/7370msec) clat (usec): min=75555, max=78219, avg=76887.25, stdev=1883.92 lat (usec): min=75557, max=78220, avg=76889.40, stdev=1883.01 clat percentiles (usec): | 1.00th=[76022], 5.00th=[76022], 10.00th=[76022], 20.00th=[76022], | 30.00th=[76022], 40.00th=[76022], 50.00th=[76022], 60.00th=[78119], | 70.00th=[78119], 80.00th=[78119], 90.00th=[78119], 95.00th=[78119], | 99.00th=[78119], 99.50th=[78119], 99.90th=[78119], 99.95th=[78119], | 99.99th=[78119] bw ( KiB/s): min= 1422, max= 2039, per=62.29%, avg=1730.50, stdev=436.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1389KiB/s (1423kB/s)(10.0MiB/7370msec); 0 zone resets clat (msec): min=118, max=3349, avg=699.12, stdev=985.10 lat (msec): min=119, max=3349, avg=699.38, stdev=985.00 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 132], | 30.00th=[ 134], 40.00th=[ 218], 50.00th=[ 317], 60.00th=[ 372], | 70.00th=[ 414], 80.00th=[ 894], 90.00th=[ 1053], 95.00th=[ 3339], | 99.00th=[ 3339], 99.50th=[ 3339], 99.90th=[ 3339], 99.95th=[ 3339], | 99.99th=[ 3339] bw ( KiB/s): min= 1992, max= 5862, per=77.34%, avg=3008.33, stdev=1621.20, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 100=16.67%, 250=33.33%, 500=25.00%, 1000=8.33%, 2000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=2.69%, 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=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=179788: Fri Sep 11 11:10:25 2026 read: IOPS=0, BW=852KiB/s (872kB/s)(6144KiB/7213msec) clat (msec): min=134, max=607, avg=300.70, stdev=214.60 lat (msec): min=134, max=607, avg=300.70, stdev=214.60 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 159], 50.00th=[ 159], 60.00th=[ 230], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1946, max= 4023, per=95.52%, avg=2653.67, stdev=1186.10, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=0, BW=852KiB/s (872kB/s)(6144KiB/7213msec); 0 zone resets clat (msec): min=210, max=3446, avg=878.71, stdev=1267.11 lat (msec): min=211, max=3447, avg=878.99, stdev=1267.05 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 439], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 1954, max= 2880, per=57.30%, avg=2229.00, stdev=435.94, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 250=50.00%, 500=16.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=2.73%, ctx=87, 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=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=179789: Fri Sep 11 11:10:25 2026 read: IOPS=0, BW=707KiB/s (724kB/s)(5120KiB/7242msec) clat (msec): min=75, max=1141, avg=354.79, stdev=448.30 lat (msec): min=75, max=1141, avg=354.79, stdev=448.30 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 142], 60.00th=[ 142], | 70.00th=[ 305], 80.00th=[ 305], 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= 3984, max= 4079, per=100.00%, avg=4031.50, stdev=67.18, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=0, BW=990KiB/s (1014kB/s)(7168KiB/7242msec); 0 zone resets clat (msec): min=159, max=3308, avg=756.89, stdev=1130.76 lat (msec): min=159, max=3309, avg=757.01, stdev=1130.77 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 222], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 418], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 443], 90.00th=[ 3306], 95.00th=[ 3306], | 99.00th=[ 3306], 99.50th=[ 3306], 99.90th=[ 3306], 99.95th=[ 3306], | 99.99th=[ 3306] bw ( KiB/s): min= 1416, max= 2043, per=48.63%, avg=1891.80, stdev=268.25, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=41.67%, 2000=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=3.66%, ctx=134, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=2779KiB/s (2846kB/s), 278KiB/s-1460KiB/s (285kB/s-1495kB/s), io=20.0MiB (20.0MB), run=4910-7370msec WRITE: bw=3890KiB/s (3984kB/s), 852KiB/s-1389KiB/s (872kB/s-1423kB/s), io=28.0MiB (29.4MB), run=4910-7370msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179790: Fri Sep 11 11:10:25 2026 read: IOPS=1, BW=1098KiB/s (1124kB/s)(7168KiB/6529msec) clat (usec): min=602, max=2919.3k, avg=666518.71, stdev=1015129.94 lat (usec): min=604, max=2919.3k, avg=666520.53, stdev=1015129.53 clat percentiles (usec): | 1.00th=[ 603], 5.00th=[ 603], 10.00th=[ 603], | 20.00th=[ 170918], 30.00th=[ 179307], 40.00th=[ 179307], | 50.00th=[ 299893], 60.00th=[ 450888], 70.00th=[ 450888], | 80.00th=[ 641729], 90.00th=[2936013], 95.00th=[2936013], | 99.00th=[2936013], 99.50th=[2936013], 99.90th=[2936013], | 99.95th=[2936013], 99.99th=[2936013] bw ( KiB/s): min= 1412, max= 4087, per=100.00%, avg=2902.25, stdev=1386.64, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=0, BW=784KiB/s (803kB/s)(5120KiB/6529msec); 0 zone resets clat (msec): min=154, max=604, avg=342.70, stdev=199.85 lat (msec): min=154, max=604, avg=342.97, stdev=199.81 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 236], 60.00th=[ 236], | 70.00th=[ 506], 80.00th=[ 506], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 2043, max= 5742, per=100.00%, avg=3892.50, stdev=2615.59, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=16.67%, 750=25.00%, >=2000=8.33% cpu : usr=0.00%, sys=9.41%, ctx=715, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179791: Fri Sep 11 11:10:25 2026 read: IOPS=0, BW=277KiB/s (283kB/s)(2048KiB/7405msec) clat (msec): min=14, max=160, avg=87.30, stdev=103.29 lat (msec): min=14, max=160, avg=87.30, stdev=103.29 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 15], 10.00th=[ 15], 20.00th=[ 15], | 30.00th=[ 15], 40.00th=[ 15], 50.00th=[ 15], 60.00th=[ 161], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 161], 95.00th=[ 161], | 99.00th=[ 161], 99.50th=[ 161], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] bw ( KiB/s): min= 1448, max= 1914, per=60.80%, avg=1681.00, stdev=329.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1383KiB/s (1416kB/s)(10.0MiB/7405msec); 0 zone resets clat (msec): min=125, max=3423, avg=697.28, stdev=986.99 lat (msec): min=125, max=3425, avg=697.55, stdev=987.56 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 155], | 30.00th=[ 190], 40.00th=[ 300], 50.00th=[ 372], 60.00th=[ 388], | 70.00th=[ 542], 80.00th=[ 550], 90.00th=[ 927], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 1914, max= 4096, per=69.60%, avg=2694.33, stdev=1080.07, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 20=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.01%, sys=8.41%, ctx=199, 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=179792: Fri Sep 11 11:10:25 2026 read: IOPS=0, BW=1002KiB/s (1026kB/s)(6144KiB/6131msec) clat (usec): min=752, max=217247, avg=83419.03, stdev=93571.78 lat (usec): min=753, max=217249, avg=83420.53, stdev=93571.93 clat percentiles (usec): | 1.00th=[ 750], 5.00th=[ 750], 10.00th=[ 750], 20.00th=[ 1827], | 30.00th=[ 1827], 40.00th=[ 43779], 50.00th=[ 43779], 60.00th=[ 53740], | 70.00th=[183501], 80.00th=[183501], 90.00th=[217056], 95.00th=[217056], | 99.00th=[217056], 99.50th=[217056], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 2039, max= 3828, per=95.42%, avg=2638.33, stdev=1030.29, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=0, BW=1002KiB/s (1026kB/s)(6144KiB/6131msec); 0 zone resets clat (msec): min=146, max=3678, avg=901.31, stdev=1376.49 lat (msec): min=147, max=3678, avg=901.44, stdev=1376.46 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 171], | 30.00th=[ 171], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 430], | 70.00th=[ 718], 80.00th=[ 718], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 1497, max= 2048, per=48.42%, avg=1874.50, stdev=258.99, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 1000=8.33% lat (msec) : 2=8.33%, 50=8.33%, 100=8.33%, 250=33.33%, 500=16.67% lat (msec) : 750=8.33%, >=2000=8.33% cpu : usr=0.00%, sys=5.94%, ctx=126, 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=179793: Fri Sep 11 11:10:25 2026 read: IOPS=0, BW=768KiB/s (786kB/s)(5120KiB/6668msec) clat (usec): min=564, max=316145, avg=103250.26, stdev=145592.12 lat (usec): min=565, max=316147, avg=103251.69, stdev=145592.17 clat percentiles (usec): | 1.00th=[ 562], 5.00th=[ 562], 10.00th=[ 562], 20.00th=[ 562], | 30.00th=[ 1090], 40.00th=[ 1090], 50.00th=[ 3195], 60.00th=[ 3195], | 70.00th=[196084], 80.00th=[196084], 90.00th=[316670], 95.00th=[316670], | 99.00th=[316670], 99.50th=[316670], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7656, max= 7656, per=100.00%, avg=7656.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1075KiB/s (1101kB/s)(7168KiB/6668msec); 0 zone resets clat (msec): min=271, max=3644, avg=840.80, stdev=1238.72 lat (msec): min=271, max=3646, avg=841.68, stdev=1239.11 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 279], | 30.00th=[ 376], 40.00th=[ 376], 50.00th=[ 393], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 477], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 1505, max= 4079, per=62.41%, avg=2415.75, stdev=1137.12, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 4=8.33%, 250=8.33%, 500=58.33%, >=2000=8.33% cpu : usr=0.03%, sys=8.08%, ctx=176, 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=2766KiB/s (2832kB/s), 277KiB/s-1098KiB/s (283kB/s-1124kB/s), io=20.0MiB (20.0MB), run=6131-7405msec WRITE: bw=3872KiB/s (3965kB/s), 784KiB/s-1383KiB/s (803kB/s-1416kB/s), io=28.0MiB (29.4MB), run=6131-7405msec 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=179801: Fri Sep 11 11:10:40 2026 read: IOPS=0, BW=3272KiB/s (3350kB/s)(12.0MiB/3756msec) clat (msec): min=469, max=2666, avg=1225.44, stdev=1248.42 lat (msec): min=469, max=2666, avg=1225.44, stdev=1248.42 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 468], 10.00th=[ 468], 20.00th=[ 468], | 30.00th=[ 468], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 2668], 80.00th=[ 2668], 90.00th=[ 2668], 95.00th=[ 2668], | 99.00th=[ 2668], 99.50th=[ 2668], 99.90th=[ 2668], 99.95th=[ 2668], | 99.99th=[ 2668] bw ( KiB/s): min= 8126, max= 8159, per=100.00%, avg=8142.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.85%, ctx=36, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179803: Fri Sep 11 11:10:40 2026 read: IOPS=0, BW=992KiB/s (1015kB/s)(4096KiB/4131msec) clat (nsec): min=3066.3M, max=3066.3M, avg=3066273658.00, stdev= 0.00 lat (nsec): min=3066.3M, max=3066.3M, avg=3066276323.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3071], 5.00th=[ 3071], 10.00th=[ 3071], 20.00th=[ 3071], | 30.00th=[ 3071], 40.00th=[ 3071], 50.00th=[ 3071], 60.00th=[ 3071], | 70.00th=[ 3071], 80.00th=[ 3071], 90.00th=[ 3071], 95.00th=[ 3071], | 99.00th=[ 3071], 99.50th=[ 3071], 99.90th=[ 3071], 99.95th=[ 3071], | 99.99th=[ 3071] 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=1983KiB/s (2031kB/s)(8192KiB/4131msec); 0 zone resets clat (msec): min=288, max=646, avg=467.52, stdev=252.82 lat (msec): min=288, max=647, avg=468.10, stdev=253.39 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 288], 10.00th=[ 288], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 288], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.47%, ctx=38, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179805: Fri Sep 11 11:10:40 2026 write: IOPS=0, BW=2592KiB/s (2654kB/s)(12.0MiB/4741msec); 0 zone resets clat (msec): min=325, max=3721, avg=1540.51, stdev=1893.24 lat (msec): min=326, max=3722, avg=1540.82, stdev=1893.27 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 3708], 80.00th=[ 3708], 90.00th=[ 3708], 95.00th=[ 3708], | 99.00th=[ 3708], 99.50th=[ 3708], 99.90th=[ 3708], 99.95th=[ 3708], | 99.99th=[ 3708] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.34%, ctx=53, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179807: Fri Sep 11 11:10:40 2026 write: IOPS=0, BW=2504KiB/s (2564kB/s)(12.0MiB/4908msec); 0 zone resets clat (msec): min=207, max=3107, avg=1589.53, stdev=1454.75 lat (msec): min=208, max=3108, avg=1589.79, stdev=1454.73 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 70.00th=[ 3104], 80.00th=[ 3104], 90.00th=[ 3104], 95.00th=[ 3104], | 99.00th=[ 3104], 99.50th=[ 3104], 99.90th=[ 3104], 99.95th=[ 3104], | 99.99th=[ 3104] bw ( KiB/s): min=16189, max=16189, per=100.00%, avg=16189.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.36%, ctx=62, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3966KiB/s (4061kB/s), 992KiB/s-3272KiB/s (1015kB/s-3350kB/s), io=16.0MiB (16.8MB), run=3756-4131msec WRITE: bw=6676KiB/s (6837kB/s), 1983KiB/s-2592KiB/s (2031kB/s-2654kB/s), io=32.0MiB (33.6MB), run=4131-4908msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179800: Fri Sep 11 11:10:40 2026 read: IOPS=0, BW=3498KiB/s (3582kB/s)(12.0MiB/3513msec) clat (msec): min=576, max=2244, avg=1137.50, stdev=958.93 lat (msec): min=576, max=2244, avg=1137.50, stdev=958.93 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 8078, max= 8175, per=100.00%, avg=8126.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=10.02%, ctx=370, 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=179802: Fri Sep 11 11:10:40 2026 read: IOPS=0, BW=1750KiB/s (1792kB/s)(4096KiB/2341msec) clat (nsec): min=1911.0M, max=1911.0M, avg=1911033036.00, stdev= 0.00 lat (nsec): min=1911.0M, max=1911.0M, avg=1911035036.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1905], 5.00th=[ 1905], 10.00th=[ 1905], 20.00th=[ 1905], | 30.00th=[ 1905], 40.00th=[ 1905], 50.00th=[ 1905], 60.00th=[ 1905], | 70.00th=[ 1905], 80.00th=[ 1905], 90.00th=[ 1905], 95.00th=[ 1905], | 99.00th=[ 1905], 99.50th=[ 1905], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3499KiB/s (3583kB/s)(8192KiB/2341msec); 0 zone resets clat (msec): min=154, max=183, avg=169.06, stdev=20.70 lat (msec): min=154, max=183, avg=169.39, stdev=20.66 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 155], 50.00th=[ 155], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 184], 90.00th=[ 184], 95.00th=[ 184], | 99.00th=[ 184], 99.50th=[ 184], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 184] lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=11.75%, ctx=288, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179804: Fri Sep 11 11:10:40 2026 write: IOPS=0, BW=2381KiB/s (2439kB/s)(12.0MiB/5160msec); 0 zone resets clat (msec): min=215, max=4371, avg=1662.03, stdev=2348.01 lat (msec): min=216, max=4373, avg=1663.01, stdev=2348.89 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 4396], 80.00th=[ 4396], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=3.02%, ctx=156, 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=179806: Fri Sep 11 11:10:40 2026 write: IOPS=0, BW=2563KiB/s (2625kB/s)(12.0MiB/4794msec); 0 zone resets clat (msec): min=334, max=3040, avg=1533.58, stdev=1379.09 lat (msec): min=334, max=3040, avg=1534.03, stdev=1378.96 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 1234], 50.00th=[ 1234], 60.00th=[ 1234], | 70.00th=[ 3037], 80.00th=[ 3037], 90.00th=[ 3037], 95.00th=[ 3037], | 99.00th=[ 3037], 99.50th=[ 3037], 99.90th=[ 3037], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.21%, ctx=61, 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=4664KiB/s (4776kB/s), 1750KiB/s-3498KiB/s (1792kB/s-3582kB/s), io=16.0MiB (16.8MB), run=2341-3513msec WRITE: bw=6350KiB/s (6503kB/s), 2381KiB/s-3499KiB/s (2439kB/s-3583kB/s), io=32.0MiB (33.6MB), run=2341-5160msec