== sanity test 398b: DIO and buffer IO race ============== 06:52:40 (1788519160) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.04348 s, 7.1 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=178818: Fri Sep 4 06:55:21 2026 read: IOPS=10, BW=42.9KiB/s (43.9kB/s)(5992KiB/139631msec) clat (usec): min=44, max=1064.8k, avg=51097.72, stdev=42317.52 lat (usec): min=45, max=1064.8k, avg=51100.28, stdev=42317.72 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 10421], 10.00th=[ 18220], | 20.00th=[ 25297], 30.00th=[ 30802], 40.00th=[ 37487], | 50.00th=[ 43779], 60.00th=[ 50594], 70.00th=[ 60031], | 80.00th=[ 72877], 90.00th=[ 91751], 95.00th=[ 113771], | 99.00th=[ 168821], 99.50th=[ 185598], 99.90th=[ 274727], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 95, per=24.91%, avg=42.59, stdev=17.20, samples=273 iops : min= 1, max= 23, avg= 9.98, stdev= 4.35, samples=273 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(6296KiB/139631msec); 0 zone resets clat (usec): min=871, max=215486, avg=39680.39, stdev=39273.49 lat (usec): min=873, max=215516, avg=39687.95, stdev=39268.88 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1287], 10.00th=[ 1762], 20.00th=[ 4686], | 30.00th=[ 9765], 40.00th=[ 20317], 50.00th=[ 29754], 60.00th=[ 39060], | 70.00th=[ 52167], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[119014], | 99.00th=[177210], 99.50th=[191890], 99.90th=[210764], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 7, max= 125, per=24.89%, avg=44.80, stdev=20.94, samples=273 iops : min= 1, max= 31, avg=10.54, stdev= 5.26, samples=273 lat (usec) : 50=0.16%, 100=1.73%, 250=0.23%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=5.47%, 4=3.39%, 10=6.74%, 20=8.27%, 50=37.83% lat (msec) : 100=27.93%, 250=7.94%, 500=0.07%, 2000=0.03% cpu : usr=0.08%, sys=4.94%, ctx=6562, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178819: Fri Sep 4 06:55:21 2026 read: IOPS=10, BW=42.6KiB/s (43.7kB/s)(5940KiB/139335msec) clat (usec): min=42, max=1078.2k, avg=52423.51, stdev=42265.91 lat (usec): min=44, max=1078.2k, avg=52425.76, stdev=42265.54 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 14353], 10.00th=[ 19792], | 20.00th=[ 26084], 30.00th=[ 32375], 40.00th=[ 38536], | 50.00th=[ 44827], 60.00th=[ 52691], 70.00th=[ 61080], | 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[ 110625], | 99.00th=[ 175113], 99.50th=[ 196084], 99.90th=[ 248513], | 99.95th=[1082131], 99.99th=[1082131] bw ( KiB/s): min= 7, max= 128, per=24.74%, avg=42.31, stdev=18.11, samples=272 iops : min= 1, max= 32, avg= 9.92, stdev= 4.58, samples=272 write: IOPS=11, BW=45.6KiB/s (46.7kB/s)(6348KiB/139335msec); 0 zone resets clat (usec): min=757, max=289148, avg=38393.25, stdev=41133.06 lat (usec): min=758, max=289149, avg=38400.03, stdev=41129.65 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1270], 10.00th=[ 1614], 20.00th=[ 4146], | 30.00th=[ 7701], 40.00th=[ 16909], 50.00th=[ 27395], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 65799], 90.00th=[ 94897], 95.00th=[117965], | 99.00th=[189793], 99.50th=[200279], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 152, per=25.05%, avg=45.09, stdev=22.24, samples=272 iops : min= 1, max= 38, avg=10.62, stdev= 5.63, samples=272 lat (usec) : 50=0.13%, 100=1.37%, 250=0.03%, 500=0.07%, 1000=0.26% lat (msec) : 2=5.99%, 4=4.04%, 10=7.16%, 20=7.81%, 50=37.53% lat (msec) : 100=27.12%, 250=8.33%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=4.91%, ctx=6497, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178820: Fri Sep 4 06:55:21 2026 read: IOPS=10, BW=43.6KiB/s (44.6kB/s)(6028KiB/138374msec) clat (usec): min=32, max=268429, avg=49667.97, stdev=32026.44 lat (usec): min=32, max=268430, avg=49669.58, stdev=32026.36 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 11731], 10.00th=[ 18744], 20.00th=[ 24773], | 30.00th=[ 31589], 40.00th=[ 36963], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 58983], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[105382], | 99.00th=[162530], 99.50th=[187696], 99.90th=[244319], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 7, max= 110, per=25.43%, avg=43.49, stdev=17.95, samples=269 iops : min= 1, max= 27, avg=10.20, stdev= 4.53, samples=269 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6260KiB/138374msec); 0 zone resets clat (usec): min=838, max=1043.2k, avg=40185.21, stdev=48861.94 lat (usec): min=840, max=1043.2k, avg=40188.89, stdev=48862.17 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1303], 10.00th=[ 1811], | 20.00th=[ 4113], 30.00th=[ 8455], 40.00th=[ 16581], | 50.00th=[ 28181], 60.00th=[ 39060], 70.00th=[ 50070], | 80.00th=[ 67634], 90.00th=[ 96994], 95.00th=[ 121111], | 99.00th=[ 189793], 99.50th=[ 219153], 99.90th=[ 270533], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 127, per=24.94%, avg=44.89, stdev=20.98, samples=270 iops : min= 1, max= 31, avg=10.56, stdev= 5.28, samples=270 lat (usec) : 50=0.20%, 100=1.63%, 250=0.26%, 500=0.13%, 1000=0.07% lat (msec) : 2=5.40%, 4=4.43%, 10=6.84%, 20=8.30%, 50=37.53% lat (msec) : 100=27.08%, 250=7.98%, 500=0.13%, 2000=0.03% cpu : usr=0.08%, sys=4.75%, ctx=6310, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178821: Fri Sep 4 06:55:21 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(6052KiB/137957msec) clat (usec): min=31, max=305578, avg=50229.90, stdev=35115.79 lat (usec): min=32, max=305579, avg=50239.28, stdev=35115.48 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 7832], 10.00th=[ 17695], 20.00th=[ 24511], | 30.00th=[ 30802], 40.00th=[ 36439], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 59507], 80.00th=[ 70779], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[177210], 99.50th=[225444], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 95, per=25.72%, avg=43.99, stdev=18.66, samples=268 iops : min= 1, max= 23, avg=10.33, stdev= 4.70, samples=268 write: IOPS=11, BW=45.2KiB/s (46.3kB/s)(6236KiB/137957msec); 0 zone resets clat (usec): min=938, max=1042.6k, avg=39345.99, stdev=48368.49 lat (usec): min=939, max=1042.6k, avg=39349.00, stdev=48367.84 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1319], 10.00th=[ 1811], | 20.00th=[ 3982], 30.00th=[ 7898], 40.00th=[ 16319], | 50.00th=[ 26346], 60.00th=[ 36963], 70.00th=[ 49021], | 80.00th=[ 68682], 90.00th=[ 94897], 95.00th=[ 122160], | 99.00th=[ 173016], 99.50th=[ 196084], 99.90th=[ 291505], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 135, per=25.08%, avg=45.14, stdev=21.84, samples=269 iops : min= 1, max= 33, avg=10.62, stdev= 5.49, samples=269 lat (usec) : 50=0.26%, 100=1.63%, 250=0.36%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=5.60%, 4=4.56%, 10=7.10%, 20=8.95%, 50=36.43% lat (msec) : 100=26.99%, 250=7.75%, 500=0.16%, 2000=0.03% cpu : usr=0.08%, sys=4.66%, ctx=6251, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=172KiB/s (176kB/s), 42.6KiB/s-43.9KiB/s (43.7kB/s-44.9kB/s), io=23.4MiB (24.6MB), run=137957-139631msec WRITE: bw=180KiB/s (184kB/s), 45.1KiB/s-45.6KiB/s (46.2kB/s-46.7kB/s), io=24.6MiB (25.7MB), run=137957-139631msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178824: Fri Sep 4 06:56:00 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(5992KiB/178675msec) clat (msec): min=5, max=1099, avg=47.87, stdev=54.21 lat (msec): min=5, max=1099, avg=47.87, stdev=54.21 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 40], | 70.00th=[ 51], 80.00th=[ 67], 90.00th=[ 102], 95.00th=[ 138], | 99.00th=[ 247], 99.50th=[ 296], 99.90th=[ 464], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 167, per=25.34%, avg=33.96, stdev=26.22, samples=341 iops : min= 1, max= 41, avg= 7.80, stdev= 6.60, samples=341 write: IOPS=8, BW=35.2KiB/s (36.1kB/s)(6296KiB/178675msec); 0 zone resets clat (msec): min=8, max=357, avg=67.84, stdev=50.07 lat (msec): min=8, max=357, avg=67.84, stdev=50.07 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 52], 60.00th=[ 64], | 70.00th=[ 78], 80.00th=[ 102], 90.00th=[ 134], 95.00th=[ 167], | 99.00th=[ 251], 99.50th=[ 296], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 151, per=25.12%, avg=35.17, stdev=23.74, samples=346 iops : min= 1, max= 37, avg= 8.10, stdev= 5.97, samples=346 lat (msec) : 10=2.12%, 20=14.68%, 50=42.12%, 100=25.75%, 250=14.42% lat (msec) : 500=0.88%, 2000=0.03% cpu : usr=0.06%, sys=1.68%, ctx=4705, 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=178825: Fri Sep 4 06:56:00 2026 read: IOPS=8, BW=33.5KiB/s (34.3kB/s)(5940KiB/177576msec) clat (msec): min=4, max=1012, avg=45.98, stdev=48.58 lat (msec): min=5, max=1012, avg=45.98, stdev=48.59 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 97], 95.00th=[ 136], | 99.00th=[ 205], 99.50th=[ 228], 99.90th=[ 292], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 149, per=25.71%, avg=34.45, stdev=25.10, samples=334 iops : min= 1, max= 37, avg= 7.93, stdev= 6.32, samples=334 write: IOPS=8, BW=35.7KiB/s (36.6kB/s)(6348KiB/177576msec); 0 zone resets clat (msec): min=11, max=364, avg=68.75, stdev=49.24 lat (msec): min=11, max=364, avg=68.75, stdev=49.24 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 44], 50.00th=[ 53], 60.00th=[ 65], | 70.00th=[ 83], 80.00th=[ 104], 90.00th=[ 136], 95.00th=[ 161], | 99.00th=[ 257], 99.50th=[ 275], 99.90th=[ 334], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 135, per=25.26%, avg=35.36, stdev=23.26, samples=347 iops : min= 1, max= 33, avg= 8.15, stdev= 5.85, samples=347 lat (msec) : 10=2.05%, 20=14.36%, 50=41.96%, 100=26.01%, 250=14.97% lat (msec) : 500=0.62%, 2000=0.03% cpu : usr=0.06%, sys=1.69%, ctx=4750, 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=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=178826: Fri Sep 4 06:56:00 2026 read: IOPS=8, BW=33.8KiB/s (34.6kB/s)(6028KiB/178440msec) clat (msec): min=4, max=465, avg=47.19, stdev=44.95 lat (msec): min=4, max=465, avg=47.20, stdev=44.95 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 70], 90.00th=[ 105], 95.00th=[ 142], | 99.00th=[ 201], 99.50th=[ 230], 99.90th=[ 393], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 7, max= 151, per=25.42%, avg=34.07, stdev=25.11, samples=343 iops : min= 1, max= 37, avg= 7.83, stdev= 6.32, samples=343 write: IOPS=8, BW=35.1KiB/s (35.9kB/s)(6260KiB/178440msec); 0 zone resets clat (msec): min=10, max=1101, avg=68.46, stdev=56.86 lat (msec): min=10, max=1101, avg=68.46, stdev=56.86 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 82], 80.00th=[ 107], 90.00th=[ 140], 95.00th=[ 169], | 99.00th=[ 239], 99.50th=[ 296], 99.90th=[ 380], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 7, max= 127, per=25.10%, avg=35.13, stdev=24.31, samples=345 iops : min= 1, max= 31, avg= 8.10, stdev= 6.13, samples=345 lat (msec) : 10=2.15%, 20=15.49%, 50=42.25%, 100=23.08%, 250=16.54% lat (msec) : 500=0.46%, 2000=0.03% cpu : usr=0.06%, sys=1.65%, ctx=4721, 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=178827: Fri Sep 4 06:56:00 2026 read: IOPS=8, BW=33.0KiB/s (34.8kB/s)(6052KiB/178136msec) clat (msec): min=5, max=382, avg=46.29, stdev=43.28 lat (msec): min=5, max=382, avg=46.29, stdev=43.28 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 50], 80.00th=[ 70], 90.00th=[ 102], 95.00th=[ 136], | 99.00th=[ 220], 99.50th=[ 232], 99.90th=[ 296], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 7, max= 164, per=26.18%, avg=35.07, stdev=25.84, samples=334 iops : min= 1, max= 41, avg= 8.08, stdev= 6.50, samples=334 write: IOPS=8, BW=35.0KiB/s (35.8kB/s)(6236KiB/178136msec); 0 zone resets clat (msec): min=11, max=1068, avg=69.25, stdev=57.09 lat (msec): min=11, max=1068, avg=69.26, stdev=57.09 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 43], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 80], 80.00th=[ 105], 90.00th=[ 140], 95.00th=[ 174], | 99.00th=[ 262], 99.50th=[ 292], 99.90th=[ 388], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 7, max= 119, per=25.00%, avg=35.01, stdev=23.26, samples=344 iops : min= 1, max= 29, avg= 8.06, stdev= 5.86, samples=344 lat (msec) : 10=1.66%, 20=14.49%, 50=43.16%, 100=24.64%, 250=15.27% lat (msec) : 500=0.75%, 2000=0.03% cpu : usr=0.07%, sys=1.66%, ctx=4780, 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=134KiB/s (138kB/s), 33.5KiB/s-33.0KiB/s (34.3kB/s-34.8kB/s), io=23.4MiB (24.6MB), run=177576-178675msec WRITE: bw=141KiB/s (144kB/s), 35.0KiB/s-35.7KiB/s (35.8kB/s-36.6kB/s), io=24.6MiB (25.7MB), run=177576-178675msec 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=178878: Fri Sep 4 06:56:54 2026 read: IOPS=9, BW=152KiB/s (156kB/s)(5920KiB/38891msec) clat (usec): min=37, max=329743, avg=52398.42, stdev=39471.85 lat (usec): min=37, max=329745, avg=52411.67, stdev=39470.96 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 76], 10.00th=[ 10290], 20.00th=[ 25035], | 30.00th=[ 33162], 40.00th=[ 38536], 50.00th=[ 46924], 60.00th=[ 54789], | 70.00th=[ 63701], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[111674], | 99.00th=[219153], 99.50th=[263193], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 319, per=24.90%, avg=153.16, stdev=65.15, samples=75 iops : min= 1, max= 19, avg= 8.83, stdev= 4.08, samples=75 write: IOPS=10, BW=164KiB/s (168kB/s)(6368KiB/38891msec); 0 zone resets clat (usec): min=1496, max=315354, avg=48125.15, stdev=47893.08 lat (usec): min=1497, max=315356, avg=48130.78, stdev=47897.81 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1942], 10.00th=[ 3261], 20.00th=[ 6783], | 30.00th=[ 12256], 40.00th=[ 23462], 50.00th=[ 34866], 60.00th=[ 46400], | 70.00th=[ 66323], 80.00th=[ 85459], 90.00th=[110625], 95.00th=[135267], | 99.00th=[214959], 99.50th=[258999], 99.90th=[316670], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 31, max= 379, per=25.58%, avg=165.48, stdev=73.55, samples=75 iops : min= 1, max= 23, avg= 9.60, stdev= 4.69, samples=75 lat (usec) : 50=0.52%, 100=3.12%, 250=0.78% lat (msec) : 2=2.99%, 4=3.52%, 10=7.81%, 20=7.42%, 50=32.29% lat (msec) : 100=31.25%, 250=9.77%, 500=0.52% cpu : usr=0.06%, sys=4.94%, ctx=1628, 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=178880: Fri Sep 4 06:56:54 2026 read: IOPS=9, BW=155KiB/s (159kB/s)(5744KiB/36943msec) clat (usec): min=39, max=271083, avg=54767.75, stdev=34473.68 lat (usec): min=40, max=271085, avg=54769.33, stdev=34473.52 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 77], 10.00th=[ 15139], 20.00th=[ 28705], | 30.00th=[ 35390], 40.00th=[ 44303], 50.00th=[ 52167], 60.00th=[ 58983], | 70.00th=[ 68682], 80.00th=[ 79168], 90.00th=[ 99091], 95.00th=[116917], | 99.00th=[147850], 99.50th=[198181], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 22, max= 352, per=25.37%, avg=156.04, stdev=68.60, samples=72 iops : min= 1, max= 22, avg= 9.01, stdev= 4.34, samples=72 write: IOPS=11, BW=177KiB/s (181kB/s)(6544KiB/36943msec); 0 zone resets clat (usec): min=1627, max=236368, avg=41240.06, stdev=40650.07 lat (usec): min=1629, max=236370, avg=41243.02, stdev=40650.70 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2057], 10.00th=[ 3884], 20.00th=[ 6652], | 30.00th=[ 10945], 40.00th=[ 20055], 50.00th=[ 27132], 60.00th=[ 39584], | 70.00th=[ 53740], 80.00th=[ 72877], 90.00th=[102237], 95.00th=[117965], | 99.00th=[173016], 99.50th=[185598], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 338, per=27.48%, avg=177.81, stdev=71.07, samples=72 iops : min= 1, max= 21, avg=10.40, stdev= 4.51, samples=72 lat (usec) : 50=0.26%, 100=3.39%, 250=0.52%, 500=0.13% lat (msec) : 2=2.34%, 4=3.12%, 10=8.98%, 20=7.81%, 50=32.03% lat (msec) : 100=31.25%, 250=10.03%, 500=0.13% cpu : usr=0.07%, sys=5.37%, ctx=1701, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178881: Fri Sep 4 06:56:54 2026 read: IOPS=10, BW=165KiB/s (169kB/s)(6256KiB/37934msec) clat (usec): min=39, max=294996, avg=55726.78, stdev=37015.97 lat (usec): min=39, max=294998, avg=55730.46, stdev=37016.45 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 74], 10.00th=[ 16909], 20.00th=[ 30540], | 30.00th=[ 39060], 40.00th=[ 44303], 50.00th=[ 50070], 60.00th=[ 58459], | 70.00th=[ 66323], 80.00th=[ 76022], 90.00th=[ 98042], 95.00th=[122160], | 99.00th=[175113], 99.50th=[252707], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 31, max= 319, per=26.72%, avg=164.31, stdev=65.02, samples=74 iops : min= 1, max= 19, avg= 9.51, stdev= 4.11, samples=74 write: IOPS=9, BW=159KiB/s (163kB/s)(6032KiB/37934msec); 0 zone resets clat (usec): min=1781, max=236981, avg=42163.53, stdev=41069.88 lat (usec): min=1783, max=236985, avg=42170.06, stdev=41068.29 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2114], 10.00th=[ 3392], 20.00th=[ 7242], | 30.00th=[ 13042], 40.00th=[ 20055], 50.00th=[ 31589], 60.00th=[ 42206], | 70.00th=[ 52167], 80.00th=[ 71828], 90.00th=[ 92799], 95.00th=[123208], | 99.00th=[179307], 99.50th=[204473], 99.90th=[238027], 99.95th=[238027], | 99.99th=[238027] bw ( KiB/s): min= 31, max= 379, per=24.13%, avg=156.09, stdev=72.00, samples=74 iops : min= 1, max= 23, avg= 9.01, stdev= 4.59, samples=74 lat (usec) : 50=0.26%, 100=3.65%, 250=0.52%, 500=0.13% lat (msec) : 2=1.56%, 4=4.17%, 10=6.90%, 20=7.81%, 50=33.72% lat (msec) : 100=32.42%, 250=8.59%, 500=0.26% cpu : usr=0.05%, sys=5.39%, ctx=1783, 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=178882: Fri Sep 4 06:56:54 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(6032KiB/35545msec) clat (usec): min=42, max=223246, avg=50683.16, stdev=33270.28 lat (usec): min=42, max=223247, avg=50685.77, stdev=33269.93 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 75], 10.00th=[ 110], 20.00th=[ 27919], | 30.00th=[ 34341], 40.00th=[ 41157], 50.00th=[ 45876], 60.00th=[ 54789], | 70.00th=[ 62129], 80.00th=[ 71828], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[173016], 99.50th=[175113], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 31, max= 379, per=27.36%, avg=168.28, stdev=71.45, samples=69 iops : min= 1, max= 23, avg= 9.80, stdev= 4.51, samples=69 write: IOPS=11, BW=176KiB/s (180kB/s)(6256KiB/35545msec); 0 zone resets clat (usec): min=1422, max=231294, avg=41661.64, stdev=42881.18 lat (usec): min=1426, max=231298, avg=41707.44, stdev=42904.34 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1942], 10.00th=[ 2999], 20.00th=[ 7046], | 30.00th=[ 11338], 40.00th=[ 19268], 50.00th=[ 26084], 60.00th=[ 36963], | 70.00th=[ 54789], 80.00th=[ 70779], 90.00th=[100140], 95.00th=[135267], | 99.00th=[181404], 99.50th=[204473], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 62, max= 347, per=27.47%, avg=177.75, stdev=63.36, samples=68 iops : min= 3, max= 21, avg=10.38, stdev= 4.06, samples=68 lat (usec) : 50=0.13%, 100=4.30%, 250=0.91% lat (msec) : 2=3.65%, 4=3.26%, 10=7.29%, 20=8.33%, 50=33.59% lat (msec) : 100=29.69%, 250=8.85% cpu : usr=0.08%, sys=5.35%, ctx=1642, 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=616KiB/s (631kB/s), 152KiB/s-170KiB/s (156kB/s-174kB/s), io=23.4MiB (24.5MB), run=35545-38891msec WRITE: bw=648KiB/s (664kB/s), 159KiB/s-177KiB/s (163kB/s-181kB/s), io=24.6MiB (25.8MB), run=35545-38891msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178875: Fri Sep 4 06:57:04 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5920KiB/48737msec) clat (msec): min=6, max=288, avg=50.23, stdev=47.69 lat (msec): min=6, max=288, avg=50.23, stdev=47.69 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 51], 80.00th=[ 73], 90.00th=[ 122], 95.00th=[ 159], | 99.00th=[ 215], 99.50th=[ 245], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 30, max= 529, per=24.86%, avg=122.05, stdev=96.37, samples=93 iops : min= 1, max= 33, avg= 6.83, stdev= 6.14, samples=93 write: IOPS=8, BW=131KiB/s (134kB/s)(6368KiB/48737msec); 0 zone resets clat (msec): min=13, max=302, avg=74.72, stdev=50.44 lat (msec): min=13, max=302, avg=74.72, stdev=50.44 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 41], 40.00th=[ 51], 50.00th=[ 62], 60.00th=[ 75], | 70.00th=[ 91], 80.00th=[ 109], 90.00th=[ 146], 95.00th=[ 169], | 99.00th=[ 249], 99.50th=[ 279], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 22, max= 416, per=25.62%, avg=132.46, stdev=88.82, samples=93 iops : min= 1, max= 26, avg= 7.48, stdev= 5.65, samples=93 lat (msec) : 10=1.56%, 20=12.50%, 50=40.49%, 100=25.26%, 250=19.66% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.74%, ctx=1221, 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=178876: Fri Sep 4 06:57:04 2026 read: IOPS=7, BW=119KiB/s (122kB/s)(5744KiB/48331msec) clat (msec): min=5, max=311, avg=50.27, stdev=45.48 lat (msec): min=5, max=311, avg=50.27, stdev=45.48 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 35], 60.00th=[ 42], | 70.00th=[ 51], 80.00th=[ 72], 90.00th=[ 108], 95.00th=[ 157], | 99.00th=[ 209], 99.50th=[ 232], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 22, max= 510, per=25.37%, avg=124.56, stdev=91.62, samples=89 iops : min= 1, max= 31, avg= 6.98, stdev= 5.79, samples=89 write: IOPS=8, BW=135KiB/s (139kB/s)(6544KiB/48331msec); 0 zone resets clat (msec): min=12, max=367, avg=73.37, stdev=55.16 lat (msec): min=12, max=367, avg=73.37, stdev=55.16 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 24], 20.00th=[ 31], | 30.00th=[ 37], 40.00th=[ 45], 50.00th=[ 55], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 113], 90.00th=[ 153], 95.00th=[ 178], | 99.00th=[ 279], 99.50th=[ 338], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 30, max= 544, per=26.27%, avg=135.82, stdev=96.46, samples=93 iops : min= 1, max= 34, avg= 7.70, stdev= 6.12, samples=93 lat (msec) : 10=0.91%, 20=10.55%, 50=45.57%, 100=24.87%, 250=17.32% lat (msec) : 500=0.78% cpu : usr=0.07%, sys=1.62%, ctx=1195, 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=178877: Fri Sep 4 06:57:04 2026 read: IOPS=8, BW=128KiB/s (132kB/s)(6256KiB/48700msec) clat (msec): min=7, max=307, avg=53.86, stdev=52.69 lat (msec): min=7, max=307, avg=53.86, stdev=52.69 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 23], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 42], | 70.00th=[ 54], 80.00th=[ 81], 90.00th=[ 128], 95.00th=[ 178], | 99.00th=[ 243], 99.50th=[ 296], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 30, max= 529, per=26.40%, avg=129.63, stdev=104.50, samples=94 iops : min= 1, max= 33, avg= 7.30, stdev= 6.66, samples=94 write: IOPS=7, BW=124KiB/s (127kB/s)(6032KiB/48700msec); 0 zone resets clat (msec): min=14, max=346, avg=73.13, stdev=51.68 lat (msec): min=14, max=346, avg=73.14, stdev=51.67 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 23], 20.00th=[ 30], | 30.00th=[ 38], 40.00th=[ 46], 50.00th=[ 58], 60.00th=[ 71], | 70.00th=[ 90], 80.00th=[ 111], 90.00th=[ 148], 95.00th=[ 180], | 99.00th=[ 220], 99.50th=[ 266], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 29, max= 435, per=23.96%, avg=123.89, stdev=91.87, samples=93 iops : min= 1, max= 27, avg= 6.95, stdev= 5.82, samples=93 lat (msec) : 10=1.69%, 20=13.93%, 50=39.84%, 100=25.39%, 250=18.36% lat (msec) : 500=0.78% cpu : usr=0.07%, sys=1.62%, ctx=1200, 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=178879: Fri Sep 4 06:57:04 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(6032KiB/48709msec) clat (msec): min=7, max=252, avg=53.41, stdev=47.24 lat (msec): min=7, max=252, avg=53.41, stdev=47.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 19], | 30.00th=[ 23], 40.00th=[ 29], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 57], 80.00th=[ 90], 90.00th=[ 128], 95.00th=[ 157], | 99.00th=[ 215], 99.50th=[ 232], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 30, max= 480, per=25.68%, avg=126.10, stdev=88.91, samples=92 iops : min= 1, max= 30, avg= 7.09, stdev= 5.63, samples=92 write: IOPS=8, BW=128KiB/s (132kB/s)(6256KiB/48709msec); 0 zone resets clat (msec): min=11, max=376, avg=72.60, stdev=54.30 lat (msec): min=11, max=376, avg=72.60, stdev=54.30 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 39], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 67], | 70.00th=[ 81], 80.00th=[ 112], 90.00th=[ 150], 95.00th=[ 178], | 99.00th=[ 268], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 529, per=24.76%, avg=128.00, stdev=90.29, samples=94 iops : min= 1, max= 33, avg= 7.20, stdev= 5.72, samples=94 lat (msec) : 10=1.30%, 20=12.89%, 50=41.28%, 100=23.96%, 250=19.66% lat (msec) : 500=0.91% cpu : usr=0.06%, sys=1.69%, ctx=1161, 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=491KiB/s (503kB/s), 119KiB/s-128KiB/s (122kB/s-132kB/s), io=23.4MiB (24.5MB), run=48331-48737msec WRITE: bw=517KiB/s (529kB/s), 124KiB/s-135KiB/s (127kB/s-139kB/s), io=24.6MiB (25.8MB), run=48331-48737msec 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=178900: Fri Sep 4 06:57:21 2026 read: IOPS=1, BW=2039KiB/s (2088kB/s)(7168KiB/3515msec) clat (msec): min=2, max=295, avg=194.64, stdev=102.32 lat (msec): min=2, max=295, avg=194.64, stdev=102.32 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 126], | 30.00th=[ 188], 40.00th=[ 188], 50.00th=[ 224], 60.00th=[ 251], | 70.00th=[ 251], 80.00th=[ 279], 90.00th=[ 296], 95.00th=[ 296], | 99.00th=[ 296], 99.50th=[ 296], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 1906, max= 4063, per=56.61%, avg=2407.60, stdev=926.81, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1457KiB/s (1492kB/s)(5120KiB/3515msec); 0 zone resets clat (msec): min=324, max=544, avg=407.59, stdev=85.31 lat (msec): min=324, max=544, avg=407.79, stdev=85.24 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1939, max= 2031, per=33.62%, avg=2002.00, stdev=42.88, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 4=8.33%, 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.03%, sys=16.19%, ctx=282, 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=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=178901: Fri Sep 4 06:57:21 2026 read: IOPS=0, BW=425KiB/s (436kB/s)(2048KiB/4815msec) clat (msec): min=349, max=551, avg=450.58, stdev=142.72 lat (msec): min=349, max=551, avg=450.58, stdev=142.71 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 2031, max= 2031, per=47.75%, avg=2031.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2127KiB/s (2178kB/s)(10.0MiB/4815msec); 0 zone resets clat (msec): min=70, max=966, avg=371.97, stdev=306.59 lat (msec): min=71, max=967, avg=373.01, stdev=306.06 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 71], 10.00th=[ 71], 20.00th=[ 132], | 30.00th=[ 167], 40.00th=[ 171], 50.00th=[ 215], 60.00th=[ 292], | 70.00th=[ 317], 80.00th=[ 609], 90.00th=[ 785], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1961, max= 4063, per=53.58%, avg=3190.40, stdev=1094.57, samples=5 iops : min= 1, max= 3, avg= 2.20, stdev= 1.10, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=14.27%, ctx=104, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178902: Fri Sep 4 06:57:21 2026 read: IOPS=1, BW=1802KiB/s (1845kB/s)(6144KiB/3410msec) clat (usec): min=694, max=293832, avg=133267.42, stdev=104521.74 lat (usec): min=695, max=293833, avg=133272.32, stdev=104521.61 clat percentiles (usec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 39584], | 30.00th=[ 39584], 40.00th=[133694], 50.00th=[133694], 60.00th=[152044], | 70.00th=[179307], 80.00th=[179307], 90.00th=[295699], 95.00th=[295699], | 99.00th=[295699], 99.50th=[295699], 99.90th=[295699], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 1969, max= 4079, per=59.11%, avg=2513.75, stdev=1043.80, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1802KiB/s (1845kB/s)(6144KiB/3410msec); 0 zone resets clat (msec): min=190, max=679, avg=404.96, stdev=172.56 lat (msec): min=190, max=679, avg=405.07, stdev=172.54 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 384], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1980, max= 3029, per=38.10%, avg=2268.75, stdev=507.47, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=13.08%, ctx=203, 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=178903: Fri Sep 4 06:57:21 2026 read: IOPS=1, BW=1251KiB/s (1281kB/s)(5120KiB/4094msec) clat (usec): min=1326, max=236051, avg=130210.22, stdev=118448.35 lat (usec): min=1328, max=236053, avg=130211.98, stdev=118448.46 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1319], 10.00th=[ 1319], 20.00th=[ 1319], | 30.00th=[ 3163], 40.00th=[ 3163], 50.00th=[183501], 60.00th=[183501], | 70.00th=[227541], 80.00th=[227541], 90.00th=[235930], 95.00th=[235930], | 99.00th=[235930], 99.50th=[235930], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 4055, max= 4071, per=95.53%, avg=4063.00, stdev=11.31, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1751KiB/s (1793kB/s)(7168KiB/4094msec); 0 zone resets clat (msec): min=131, max=1042, avg=458.53, stdev=296.05 lat (msec): min=132, max=1042, avg=458.71, stdev=295.97 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 275], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 617], 90.00th=[ 1045], 95.00th=[ 1045], | 99.00th=[ 1045], 99.50th=[ 1045], 99.90th=[ 1045], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 1494, max= 3938, per=39.91%, avg=2376.50, stdev=1072.01, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 250=33.33%, 500=33.33%, 750=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=12.14%, ctx=120, 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=4253KiB/s (4355kB/s), 425KiB/s-2039KiB/s (436kB/s-2088kB/s), io=20.0MiB (20.0MB), run=3410-4815msec WRITE: bw=5955KiB/s (6098kB/s), 1457KiB/s-2127KiB/s (1492kB/s-2178kB/s), io=28.0MiB (29.4MB), run=3410-4815msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178895: Fri Sep 4 06:57:21 2026 read: IOPS=2, BW=2145KiB/s (2196kB/s)(7168KiB/3342msec) clat (msec): min=108, max=402, avg=245.22, stdev=121.71 lat (msec): min=108, max=402, avg=245.22, stdev=121.71 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 192], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 401], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 1988, max= 4071, per=68.52%, avg=2716.75, stdev=968.53, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1532KiB/s (1569kB/s)(5120KiB/3342msec); 0 zone resets clat (msec): min=157, max=556, avg=295.00, stdev=160.68 lat (msec): min=157, max=556, avg=295.12, stdev=160.66 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 159], | 30.00th=[ 190], 40.00th=[ 190], 50.00th=[ 239], 60.00th=[ 239], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1957, max= 2048, per=36.26%, avg=2012.60, stdev=38.58, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=58.33%, 500=33.33%, 750=8.33% cpu : usr=0.03%, sys=4.76%, ctx=100, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178896: Fri Sep 4 06:57:21 2026 read: IOPS=0, BW=425KiB/s (435kB/s)(2048KiB/4818msec) clat (msec): min=113, max=828, avg=471.05, stdev=505.96 lat (msec): min=113, max=828, avg=471.05, stdev=505.96 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 114], 10.00th=[ 114], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 114], 50.00th=[ 114], 60.00th=[ 827], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1980, max= 2019, per=50.43%, avg=1999.50, stdev=27.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2125KiB/s (2176kB/s)(10.0MiB/4818msec); 0 zone resets clat (msec): min=184, max=787, avg=384.43, stdev=198.11 lat (msec): min=184, max=787, avg=384.66, stdev=198.06 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 215], | 30.00th=[ 224], 40.00th=[ 271], 50.00th=[ 321], 60.00th=[ 372], | 70.00th=[ 397], 80.00th=[ 414], 90.00th=[ 667], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1932, max= 4096, per=48.45%, avg=2689.50, stdev=1077.40, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 250=33.33%, 500=41.67%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=7.33%, ctx=138, 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=178897: Fri Sep 4 06:57:21 2026 read: IOPS=1, BW=1427KiB/s (1461kB/s)(6144KiB/4305msec) clat (msec): min=158, max=825, avg=316.70, stdev=262.57 lat (msec): min=158, max=825, avg=316.70, stdev=262.57 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 167], 50.00th=[ 167], 60.00th=[ 213], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 2019, max= 2039, per=51.20%, avg=2030.20, stdev= 7.69, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1427KiB/s (1461kB/s)(6144KiB/4305msec); 0 zone resets clat (msec): min=126, max=575, avg=379.55, stdev=170.53 lat (msec): min=126, max=575, avg=379.80, stdev=170.71 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 401], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1932, max= 2048, per=36.32%, avg=2016.20, stdev=47.59, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.60%, ctx=93, 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=178898: Fri Sep 4 06:57:21 2026 read: IOPS=0, BW=991KiB/s (1015kB/s)(5120KiB/5165msec) clat (msec): min=78, max=857, avg=409.63, stdev=337.07 lat (msec): min=78, max=857, avg=409.63, stdev=337.07 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 634], 80.00th=[ 634], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 2035, max= 4071, per=68.51%, avg=2716.33, stdev=1173.18, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1388KiB/s (1421kB/s)(7168KiB/5165msec); 0 zone resets clat (msec): min=136, max=921, avg=425.31, stdev=290.18 lat (msec): min=136, max=921, avg=425.43, stdev=290.17 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 157], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 300], 60.00th=[ 510], | 70.00th=[ 510], 80.00th=[ 667], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 1368, max= 2048, per=33.85%, avg=1879.20, stdev=288.09, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=4.03%, ctx=97, 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=3965KiB/s (4060kB/s), 425KiB/s-2145KiB/s (435kB/s-2196kB/s), io=20.0MiB (20.0MB), run=3342-5165msec WRITE: bw=5551KiB/s (5684kB/s), 1388KiB/s-2125KiB/s (1421kB/s-2176kB/s), io=28.0MiB (29.4MB), run=3342-5165msec 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=178911: Fri Sep 4 06:57:37 2026 read: IOPS=1, BW=4737KiB/s (4851kB/s)(12.0MiB/2594msec) clat (msec): min=733, max=843, avg=804.32, stdev=61.16 lat (msec): min=733, max=843, avg=804.32, stdev=61.16 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 844], 80.00th=[ 844], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 8000, max= 8175, per=100.00%, avg=8087.50, stdev=123.74, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=14.69%, ctx=292, 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=178912: Fri Sep 4 06:57:37 2026 read: IOPS=0, BW=1181KiB/s (1209kB/s)(4096KiB/3468msec) clat (nsec): min=751896k, max=751896k, avg=751895604.00, stdev= 0.00 lat (nsec): min=751897k, max=751897k, avg=751897194.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 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=2362KiB/s (2419kB/s)(8192KiB/3468msec); 0 zone resets clat (msec): min=1126, max=1401, avg=1263.99, stdev=194.19 lat (msec): min=1126, max=1401, avg=1264.30, stdev=194.34 clat percentiles (msec): | 1.00th=[ 1133], 5.00th=[ 1133], 10.00th=[ 1133], 20.00th=[ 1133], | 30.00th=[ 1133], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8192, max= 8192, per=86.91%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.63%, ctx=104, 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=178914: Fri Sep 4 06:57:37 2026 write: IOPS=0, BW=3535KiB/s (3620kB/s)(12.0MiB/3476msec); 0 zone resets clat (msec): min=390, max=1901, avg=1047.23, stdev=774.75 lat (msec): min=391, max=1903, avg=1048.59, stdev=774.84 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 852], 50.00th=[ 852], 60.00th=[ 852], | 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= 8192, max= 8192, per=86.91%, avg=8192.00, stdev= 0.00, samples=2 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.19%, ctx=57, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178916: Fri Sep 4 06:57:37 2026 write: IOPS=0, BW=4009KiB/s (4105kB/s)(12.0MiB/3065msec); 0 zone resets clat (msec): min=620, max=1570, avg=980.38, stdev=515.12 lat (msec): min=629, max=1570, avg=983.73, stdev=511.97 clat percentiles (msec): | 1.00th=[ 617], 5.00th=[ 617], 10.00th=[ 617], 20.00th=[ 617], | 30.00th=[ 617], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 751], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8000, max= 8110, per=85.46%, avg=8055.00, stdev=77.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.85%, ctx=80, 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=4724KiB/s (4838kB/s), 1181KiB/s-4737KiB/s (1209kB/s-4851kB/s), io=16.0MiB (16.8MB), run=2594-3468msec WRITE: bw=9427KiB/s (9653kB/s), 2362KiB/s-4009KiB/s (2419kB/s-4105kB/s), io=32.0MiB (33.6MB), run=3065-3476msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178913: Fri Sep 4 06:57:38 2026 read: IOPS=0, BW=3232KiB/s (3310kB/s)(12.0MiB/3802msec) clat (msec): min=223, max=2382, avg=1148.22, stdev=1112.23 lat (msec): min=223, max=2382, avg=1148.23, stdev=1112.23 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 2366], 80.00th=[ 2366], 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= 8110, max= 8143, per=100.00%, avg=8126.50, stdev=23.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.18%, sys=2.84%, ctx=57, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178915: Fri Sep 4 06:57:38 2026 read: IOPS=0, BW=1075KiB/s (1101kB/s)(4096KiB/3810msec) clat (nsec): min=1268.9M, max=1268.9M, avg=1268942362.00, stdev= 0.00 lat (nsec): min=1268.9M, max=1268.9M, avg=1268945489.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1267], 5.00th=[ 1267], 10.00th=[ 1267], 20.00th=[ 1267], | 30.00th=[ 1267], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2150KiB/s (2202kB/s)(8192KiB/3810msec); 0 zone resets clat (msec): min=637, max=1715, avg=1176.21, stdev=762.33 lat (msec): min=637, max=1716, avg=1176.98, stdev=762.80 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 1720], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8110, max= 8110, per=94.30%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.44%, ctx=57, 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=178917: Fri Sep 4 06:57:38 2026 write: IOPS=0, BW=3955KiB/s (4050kB/s)(12.0MiB/3107msec); 0 zone resets clat (msec): min=794, max=1224, avg=988.63, stdev=218.09 lat (msec): min=800, max=1224, avg=991.91, stdev=215.06 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 8078, max= 8159, per=94.40%, avg=8118.50, stdev=57.28, 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=0.00%, sys=4.60%, ctx=57, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178918: Fri Sep 4 06:57:38 2026 write: IOPS=0, BW=3692KiB/s (3781kB/s)(12.0MiB/3328msec); 0 zone resets clat (msec): min=572, max=1269, avg=994.07, stdev=370.58 lat (msec): min=573, max=1270, avg=994.67, stdev=370.76 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 1133], 50.00th=[ 1133], 60.00th=[ 1133], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8015, max= 8110, per=93.75%, avg=8062.50, stdev=67.18, 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=3.40%, ctx=61, 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=4300KiB/s (4403kB/s), 1075KiB/s-3232KiB/s (1101kB/s-3310kB/s), io=16.0MiB (16.8MB), run=3802-3810msec WRITE: bw=8601KiB/s (8807kB/s), 2150KiB/s-3955KiB/s (2202kB/s-4050kB/s), io=32.0MiB (33.6MB), run=3107-3810msec