== sanity test 398b: DIO and buffer IO race ============== 07:12:58 (1788606778) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.95656 s, 8.4 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=181350: Sat Sep 5 07:15:10 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(5992KiB/112848msec) clat (usec): min=36, max=839625, avg=42461.88, stdev=34330.52 lat (usec): min=36, max=839627, avg=42465.85, stdev=34328.36 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 7439], 10.00th=[ 16188], 20.00th=[ 20841], | 30.00th=[ 25822], 40.00th=[ 31327], 50.00th=[ 35914], 60.00th=[ 42730], | 70.00th=[ 50070], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 89654], | 99.00th=[135267], 99.50th=[154141], 99.90th=[295699], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 7, max= 127, per=25.01%, avg=52.78, stdev=19.85, samples=222 iops : min= 1, max= 31, avg=12.57, stdev= 5.00, samples=222 write: IOPS=13, BW=55.8KiB/s (57.1kB/s)(6296KiB/112848msec); 0 zone resets clat (usec): min=1143, max=234419, avg=30972.31, stdev=30603.73 lat (usec): min=1144, max=234421, avg=30974.42, stdev=30603.82 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1516], 10.00th=[ 2245], 20.00th=[ 4293], | 30.00th=[ 7963], 40.00th=[ 15401], 50.00th=[ 22938], 60.00th=[ 30540], | 70.00th=[ 39584], 80.00th=[ 52691], 90.00th=[ 73925], 95.00th=[ 92799], | 99.00th=[135267], 99.50th=[145753], 99.90th=[193987], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 8, max= 175, per=25.20%, avg=55.45, stdev=23.49, samples=222 iops : min= 2, max= 43, avg=13.24, stdev= 5.89, samples=222 lat (usec) : 50=0.26%, 100=1.73%, 250=0.16%, 500=0.03% lat (msec) : 2=4.20%, 4=5.76%, 10=7.78%, 20=11.52%, 50=43.07% lat (msec) : 100=22.07%, 250=3.35%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.97%, ctx=6751, 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=181351: Sat Sep 5 07:15:10 2026 read: IOPS=13, BW=52.3KiB/s (53.6kB/s)(5940KiB/113546msec) clat (usec): min=45, max=294578, avg=42111.36, stdev=28168.75 lat (usec): min=46, max=294580, avg=42113.11, stdev=28168.88 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 10814], 10.00th=[ 15533], 20.00th=[ 21103], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 36963], 60.00th=[ 42206], | 70.00th=[ 50070], 80.00th=[ 60031], 90.00th=[ 73925], 95.00th=[ 87557], | 99.00th=[141558], 99.50th=[173016], 99.90th=[244319], 99.95th=[295699], | 99.99th=[295699] bw ( KiB/s): min= 7, max= 119, per=24.60%, avg=51.91, stdev=18.99, samples=223 iops : min= 1, max= 29, avg=12.36, stdev= 4.77, samples=223 write: IOPS=13, BW=55.9KiB/s (57.2kB/s)(6348KiB/113546msec); 0 zone resets clat (usec): min=1121, max=825831, avg=31858.64, stdev=37637.16 lat (usec): min=1121, max=825832, avg=31860.32, stdev=37637.15 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1434], 10.00th=[ 2245], 20.00th=[ 4359], | 30.00th=[ 7701], 40.00th=[ 15008], 50.00th=[ 22152], 60.00th=[ 30278], | 70.00th=[ 40109], 80.00th=[ 54789], 90.00th=[ 74974], 95.00th=[ 94897], | 99.00th=[141558], 99.50th=[164627], 99.90th=[235930], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 8, max= 127, per=25.15%, avg=55.33, stdev=22.31, samples=223 iops : min= 2, max= 31, avg=13.22, stdev= 5.58, samples=223 lat (usec) : 50=0.16%, 100=1.53%, 250=0.07%, 500=0.07%, 1000=0.03% lat (msec) : 2=4.85%, 4=4.59%, 10=8.40%, 20=13.22%, 50=41.02% lat (msec) : 100=22.30%, 250=3.71%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=6.08%, ctx=6819, 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=181352: Sat Sep 5 07:15:10 2026 read: IOPS=13, BW=53.3KiB/s (54.6kB/s)(6028KiB/113065msec) clat (usec): min=44, max=838536, avg=41696.24, stdev=33522.53 lat (usec): min=46, max=838536, avg=41702.08, stdev=33521.47 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11863], 10.00th=[ 16319], 20.00th=[ 21890], | 30.00th=[ 25822], 40.00th=[ 30278], 50.00th=[ 35914], 60.00th=[ 41157], | 70.00th=[ 48497], 80.00th=[ 58459], 90.00th=[ 73925], 95.00th=[ 89654], | 99.00th=[132645], 99.50th=[170918], 99.90th=[214959], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 112, per=25.07%, avg=52.91, stdev=19.93, samples=222 iops : min= 1, max= 28, avg=12.60, stdev= 5.01, samples=222 write: IOPS=13, BW=55.4KiB/s (56.7kB/s)(6260KiB/113065msec); 0 zone resets clat (usec): min=1076, max=308196, avg=31782.56, stdev=32823.78 lat (usec): min=1078, max=308198, avg=31789.68, stdev=32821.60 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1450], 10.00th=[ 2180], 20.00th=[ 4113], | 30.00th=[ 7767], 40.00th=[ 15139], 50.00th=[ 22414], 60.00th=[ 31327], | 70.00th=[ 40109], 80.00th=[ 54789], 90.00th=[ 76022], 95.00th=[ 92799], | 99.00th=[143655], 99.50th=[166724], 99.90th=[252707], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 7, max= 143, per=24.93%, avg=54.85, stdev=24.21, samples=222 iops : min= 1, max= 35, avg=13.10, stdev= 6.09, samples=222 lat (usec) : 50=0.07%, 100=1.43%, 250=0.13%, 500=0.10%, 750=0.03% lat (msec) : 2=4.56%, 4=5.53%, 10=7.36%, 20=12.24%, 50=43.36% lat (msec) : 100=21.58%, 250=3.52%, 500=0.07%, 1000=0.03% cpu : usr=0.08%, sys=5.79%, ctx=6800, 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=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=181353: Sat Sep 5 07:15:10 2026 read: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6052KiB/113796msec) clat (usec): min=49, max=232775, avg=41339.13, stdev=27109.84 lat (usec): min=50, max=232777, avg=41350.75, stdev=27128.24 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12256], 10.00th=[ 16188], 20.00th=[ 21365], | 30.00th=[ 25560], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 42206], | 70.00th=[ 49021], 80.00th=[ 58459], 90.00th=[ 71828], 95.00th=[ 87557], | 99.00th=[137364], 99.50th=[160433], 99.90th=[221250], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 8, max= 128, per=25.03%, avg=52.81, stdev=19.47, samples=224 iops : min= 2, max= 32, avg=12.59, stdev= 4.89, samples=224 write: IOPS=13, BW=54.8KiB/s (56.1kB/s)(6236KiB/113796msec); 0 zone resets clat (usec): min=1118, max=831908, avg=32586.49, stdev=37293.88 lat (usec): min=1119, max=831910, avg=32588.94, stdev=37294.01 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1352], 10.00th=[ 1909], 20.00th=[ 4047], | 30.00th=[ 7242], 40.00th=[ 15926], 50.00th=[ 23987], 60.00th=[ 31851], | 70.00th=[ 43254], 80.00th=[ 56361], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[131597], 99.50th=[145753], 99.90th=[223347], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 127, per=24.73%, avg=54.40, stdev=21.56, samples=224 iops : min= 1, max= 31, avg=12.99, stdev= 5.40, samples=224 lat (usec) : 50=0.07%, 100=1.43%, 250=0.13%, 500=0.03%, 750=0.03% lat (msec) : 2=5.31%, 4=4.82%, 10=7.58%, 20=11.65%, 50=42.68% lat (msec) : 100=22.69%, 250=3.55%, 1000=0.03% cpu : usr=0.08%, sys=5.81%, ctx=6742, 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=211KiB/s (216kB/s), 52.3KiB/s-53.3KiB/s (53.6kB/s-54.6kB/s), io=23.4MiB (24.6MB), run=112848-113796msec WRITE: bw=221KiB/s (226kB/s), 54.8KiB/s-55.9KiB/s (56.1kB/s-57.2kB/s), io=24.6MiB (25.7MB), run=112848-113796msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181355: Sat Sep 5 07:15:49 2026 read: IOPS=9, BW=39.4KiB/s (40.3kB/s)(5992KiB/152251msec) clat (msec): min=5, max=840, avg=40.03, stdev=38.77 lat (msec): min=5, max=840, avg=40.03, stdev=38.77 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 88], 95.00th=[ 111], | 99.00th=[ 163], 99.50th=[ 199], 99.90th=[ 218], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 119, per=25.17%, avg=39.52, stdev=24.77, samples=295 iops : min= 1, max= 29, avg= 9.22, stdev= 6.25, samples=295 write: IOPS=10, BW=41.4KiB/s (42.3kB/s)(6296KiB/152251msec); 0 zone resets clat (msec): min=11, max=325, avg=58.51, stdev=40.15 lat (msec): min=11, max=325, avg=58.52, stdev=40.15 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 109], 95.00th=[ 132], | 99.00th=[ 215], 99.50th=[ 259], 99.90th=[ 313], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 143, per=24.99%, avg=40.99, stdev=23.80, samples=299 iops : min= 1, max= 35, avg= 9.59, stdev= 6.00, samples=299 lat (msec) : 10=2.25%, 20=15.66%, 50=47.75%, 100=24.25%, 250=9.80% lat (msec) : 500=0.26%, 1000=0.03% cpu : usr=0.08%, sys=2.29%, ctx=4946, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181356: Sat Sep 5 07:15:49 2026 read: IOPS=9, BW=38.0KiB/s (39.9kB/s)(5940KiB/152473msec) clat (msec): min=6, max=856, avg=39.98, stdev=40.99 lat (msec): min=6, max=856, avg=39.98, stdev=40.99 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 87], 95.00th=[ 115], | 99.00th=[ 167], 99.50th=[ 194], 99.90th=[ 313], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 135, per=24.97%, avg=39.21, stdev=25.83, samples=294 iops : min= 1, max= 33, avg= 9.14, stdev= 6.49, samples=294 write: IOPS=10, BW=41.6KiB/s (42.6kB/s)(6348KiB/152473msec); 0 zone resets clat (msec): min=11, max=304, avg=58.55, stdev=39.52 lat (msec): min=11, max=304, avg=58.56, stdev=39.52 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 46], 60.00th=[ 55], | 70.00th=[ 69], 80.00th=[ 85], 90.00th=[ 110], 95.00th=[ 136], | 99.00th=[ 207], 99.50th=[ 230], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 7, max= 143, per=25.10%, avg=41.16, stdev=24.01, samples=299 iops : min= 1, max= 35, avg= 9.63, stdev= 6.05, samples=299 lat (msec) : 10=2.05%, 20=16.24%, 50=47.43%, 100=23.47%, 250=10.55% lat (msec) : 500=0.23%, 1000=0.03% cpu : usr=0.07%, sys=2.34%, ctx=5029, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181357: Sat Sep 5 07:15:49 2026 read: IOPS=9, BW=39.6KiB/s (40.5kB/s)(6028KiB/152358msec) clat (msec): min=5, max=294, avg=40.48, stdev=35.15 lat (msec): min=5, max=294, avg=40.49, stdev=35.15 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 44], 80.00th=[ 59], 90.00th=[ 87], 95.00th=[ 112], | 99.00th=[ 169], 99.50th=[ 207], 99.90th=[ 255], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 151, per=25.04%, avg=39.32, stdev=25.62, samples=298 iops : min= 1, max= 37, avg= 9.17, stdev= 6.44, samples=298 write: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6260KiB/152358msec); 0 zone resets clat (msec): min=10, max=878, avg=58.26, stdev=44.00 lat (msec): min=10, max=878, avg=58.27, stdev=44.00 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 45], 60.00th=[ 54], | 70.00th=[ 68], 80.00th=[ 85], 90.00th=[ 111], 95.00th=[ 132], | 99.00th=[ 205], 99.50th=[ 232], 99.90th=[ 326], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 111, per=24.98%, avg=40.97, stdev=23.75, samples=297 iops : min= 1, max= 27, avg= 9.59, stdev= 5.98, samples=297 lat (msec) : 10=2.21%, 20=15.72%, 50=47.85%, 100=23.80%, 250=10.22% lat (msec) : 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=2.35%, ctx=4973, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181358: Sat Sep 5 07:15:49 2026 read: IOPS=9, BW=39.8KiB/s (40.8kB/s)(6052KiB/151880msec) clat (msec): min=5, max=289, avg=39.87, stdev=35.80 lat (msec): min=5, max=289, avg=39.87, stdev=35.80 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=[ 43], 80.00th=[ 56], 90.00th=[ 87], 95.00th=[ 114], | 99.00th=[ 174], 99.50th=[ 203], 99.90th=[ 275], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 7, max= 151, per=26.22%, avg=41.17, stdev=25.67, samples=286 iops : min= 1, max= 37, avg= 9.64, stdev= 6.47, samples=286 write: IOPS=10, BW=41.1KiB/s (42.0kB/s)(6236KiB/151880msec); 0 zone resets clat (msec): min=11, max=903, avg=58.61, stdev=44.19 lat (msec): min=11, max=903, avg=58.62, stdev=44.19 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 24], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 47], 60.00th=[ 56], | 70.00th=[ 67], 80.00th=[ 84], 90.00th=[ 109], 95.00th=[ 134], | 99.00th=[ 199], 99.50th=[ 224], 99.90th=[ 330], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 127, per=24.98%, avg=40.97, stdev=23.65, samples=296 iops : min= 1, max= 31, avg= 9.58, stdev= 5.95, samples=296 lat (msec) : 10=2.18%, 20=16.47%, 50=45.96%, 100=25.81%, 250=9.24% lat (msec) : 500=0.29%, 1000=0.03% cpu : usr=0.07%, sys=2.26%, ctx=5012, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=157KiB/s (161kB/s), 38.0KiB/s-39.8KiB/s (39.9kB/s-40.8kB/s), io=23.4MiB (24.6MB), run=151880-152473msec WRITE: bw=165KiB/s (169kB/s), 41.1KiB/s-41.6KiB/s (42.0kB/s-42.6kB/s), io=24.6MiB (25.7MB), run=151880-152473msec 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=181399: Sat Sep 5 07:16:28 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(5920KiB/28722msec) clat (usec): min=46, max=216385, avg=41546.84, stdev=27509.04 lat (usec): min=47, max=216387, avg=41551.37, stdev=27504.62 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 80], 10.00th=[ 16450], 20.00th=[ 23200], | 30.00th=[ 27395], 40.00th=[ 31589], 50.00th=[ 36963], 60.00th=[ 41681], | 70.00th=[ 46924], 80.00th=[ 55837], 90.00th=[ 72877], 95.00th=[ 90702], | 99.00th=[141558], 99.50th=[185598], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 63, max= 414, per=24.91%, avg=203.75, stdev=71.84, samples=56 iops : min= 3, max= 25, avg=11.98, stdev= 4.55, samples=56 write: IOPS=13, BW=222KiB/s (227kB/s)(6368KiB/28722msec); 0 zone resets clat (usec): min=1629, max=168471, avg=32968.31, stdev=29308.49 lat (usec): min=1631, max=168473, avg=32970.78, stdev=29308.54 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2089], 10.00th=[ 3818], 20.00th=[ 6456], | 30.00th=[ 10159], 40.00th=[ 19006], 50.00th=[ 27657], 60.00th=[ 33817], | 70.00th=[ 42206], 80.00th=[ 55837], 90.00th=[ 71828], 95.00th=[ 88605], | 99.00th=[120062], 99.50th=[154141], 99.90th=[168821], 99.95th=[168821], | 99.99th=[168821] bw ( KiB/s): min= 63, max= 382, per=25.62%, avg=220.61, stdev=77.47, samples=56 iops : min= 3, max= 23, avg=13.05, stdev= 4.87, samples=56 lat (usec) : 50=0.26%, 100=2.60%, 250=0.13% lat (msec) : 2=1.95%, 4=3.91%, 10=9.77%, 20=9.77%, 50=47.01% lat (msec) : 100=21.35%, 250=3.26% cpu : usr=0.08%, sys=6.84%, ctx=1857, 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=181400: Sat Sep 5 07:16:28 2026 read: IOPS=12, BW=206KiB/s (211kB/s)(5744KiB/27923msec) clat (usec): min=41, max=149876, avg=40248.96, stdev=24390.90 lat (usec): min=41, max=149877, avg=40250.20, stdev=24390.94 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 15139], 20.00th=[ 22938], | 30.00th=[ 27395], 40.00th=[ 32113], 50.00th=[ 36963], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 55837], 90.00th=[ 70779], 95.00th=[ 86508], | 99.00th=[131597], 99.50th=[139461], 99.90th=[149947], 99.95th=[149947], | 99.99th=[149947] bw ( KiB/s): min= 56, max= 416, per=25.18%, avg=205.98, stdev=73.21, samples=55 iops : min= 3, max= 26, avg=12.13, stdev= 4.64, samples=55 write: IOPS=14, BW=234KiB/s (240kB/s)(6544KiB/27923msec); 0 zone resets clat (usec): min=1652, max=163981, avg=32775.91, stdev=30286.55 lat (usec): min=1653, max=163983, avg=32778.05, stdev=30286.59 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 2409], 10.00th=[ 3621], 20.00th=[ 6652], | 30.00th=[ 10683], 40.00th=[ 16057], 50.00th=[ 24773], 60.00th=[ 31851], | 70.00th=[ 42730], 80.00th=[ 54789], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[139461], 99.50th=[147850], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 95, max= 445, per=27.17%, avg=233.93, stdev=77.54, samples=55 iops : min= 5, max= 27, avg=13.89, stdev= 4.85, samples=55 lat (usec) : 50=0.13%, 100=3.12%, 250=0.13%, 750=0.13% lat (msec) : 2=1.56%, 4=4.95%, 10=9.24%, 20=10.55%, 50=44.66% lat (msec) : 100=22.40%, 250=3.12% cpu : usr=0.07%, sys=6.52%, ctx=1775, 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=181401: Sat Sep 5 07:16:28 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(6256KiB/29252msec) clat (usec): min=28, max=192913, avg=42735.18, stdev=27494.45 lat (usec): min=28, max=192915, avg=42738.91, stdev=27493.25 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 69], 10.00th=[ 12125], 20.00th=[ 21890], | 30.00th=[ 27657], 40.00th=[ 32900], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 54264], 80.00th=[ 61604], 90.00th=[ 77071], 95.00th=[ 89654], | 99.00th=[124257], 99.50th=[175113], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 63, max= 415, per=26.11%, avg=213.56, stdev=73.54, samples=57 iops : min= 3, max= 25, avg=12.61, stdev= 4.58, samples=57 write: IOPS=12, BW=206KiB/s (211kB/s)(6032KiB/29252msec); 0 zone resets clat (usec): min=1557, max=223661, avg=32601.41, stdev=29799.76 lat (usec): min=1558, max=223664, avg=32607.73, stdev=29795.97 clat percentiles (usec): | 1.00th=[ 1860], 5.00th=[ 2769], 10.00th=[ 4178], 20.00th=[ 7308], | 30.00th=[ 11076], 40.00th=[ 16581], 50.00th=[ 24249], 60.00th=[ 33424], | 70.00th=[ 41681], 80.00th=[ 56886], 90.00th=[ 71828], 95.00th=[ 84411], | 99.00th=[137364], 99.50th=[154141], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 63, max= 384, per=23.62%, avg=203.40, stdev=71.79, samples=57 iops : min= 3, max= 24, avg=11.96, stdev= 4.60, samples=57 lat (usec) : 50=0.26%, 100=3.65%, 250=0.13%, 500=0.13% lat (msec) : 2=1.56%, 4=2.99%, 10=9.38%, 20=12.63%, 50=39.97% lat (msec) : 100=26.69%, 250=2.60% cpu : usr=0.10%, sys=6.57%, ctx=1802, 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=181402: Sat Sep 5 07:16:28 2026 read: IOPS=13, BW=217KiB/s (223kB/s)(6032KiB/27745msec) clat (usec): min=39, max=172101, avg=38841.06, stdev=27303.33 lat (usec): min=40, max=172101, avg=38842.27, stdev=27303.36 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 269], 20.00th=[ 20055], | 30.00th=[ 25822], 40.00th=[ 30802], 50.00th=[ 34341], 60.00th=[ 39060], | 70.00th=[ 45876], 80.00th=[ 55313], 90.00th=[ 70779], 95.00th=[ 83362], | 99.00th=[149947], 99.50th=[170918], 99.90th=[173016], 99.95th=[173016], | 99.99th=[173016] bw ( KiB/s): min= 31, max= 377, per=26.44%, avg=216.30, stdev=84.07, samples=54 iops : min= 1, max= 23, avg=12.78, stdev= 5.29, samples=54 write: IOPS=14, BW=225KiB/s (231kB/s)(6256KiB/27745msec); 0 zone resets clat (usec): min=1402, max=198527, avg=33044.54, stdev=32804.58 lat (usec): min=1404, max=198529, avg=33046.86, stdev=32804.80 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 2040], 10.00th=[ 3261], 20.00th=[ 6718], | 30.00th=[ 10421], 40.00th=[ 17433], 50.00th=[ 22676], 60.00th=[ 29754], | 70.00th=[ 42206], 80.00th=[ 56361], 90.00th=[ 71828], 95.00th=[ 91751], | 99.00th=[154141], 99.50th=[183501], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 63, max= 539, per=25.98%, avg=223.65, stdev=94.44, samples=54 iops : min= 3, max= 33, avg=13.26, stdev= 5.99, samples=54 lat (usec) : 50=0.52%, 100=3.78%, 250=0.52%, 500=0.26% lat (msec) : 2=2.47%, 4=4.43%, 10=8.07%, 20=12.76%, 50=43.62% lat (msec) : 100=19.92%, 250=3.65% cpu : usr=0.09%, sys=6.35%, ctx=1729, 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=819KiB/s (838kB/s), 206KiB/s-217KiB/s (211kB/s-223kB/s), io=23.4MiB (24.5MB), run=27745-29252msec WRITE: bw=861KiB/s (882kB/s), 206KiB/s-234KiB/s (211kB/s-240kB/s), io=24.6MiB (25.8MB), run=27745-29252msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181395: Sat Sep 5 07:16:38 2026 read: IOPS=9, BW=152KiB/s (156kB/s)(5920KiB/38930msec) clat (msec): min=5, max=266, avg=39.49, stdev=33.01 lat (msec): min=5, max=266, avg=39.49, stdev=33.01 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 57], 90.00th=[ 79], 95.00th=[ 113], | 99.00th=[ 159], 99.50th=[ 171], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 30, max= 415, per=25.24%, avg=153.99, stdev=92.15, samples=76 iops : min= 1, max= 25, avg= 8.83, stdev= 5.81, samples=76 write: IOPS=10, BW=164KiB/s (168kB/s)(6368KiB/38930msec); 0 zone resets clat (msec): min=12, max=350, avg=60.81, stdev=41.56 lat (msec): min=12, max=350, avg=60.82, stdev=41.57 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 68], 80.00th=[ 89], 90.00th=[ 120], 95.00th=[ 146], | 99.00th=[ 199], 99.50th=[ 211], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 352, per=25.41%, avg=163.12, stdev=85.60, samples=77 iops : min= 1, max= 22, avg= 9.40, stdev= 5.40, samples=77 lat (msec) : 10=0.91%, 20=13.93%, 50=49.09%, 100=24.22%, 250=11.59% lat (msec) : 500=0.26% cpu : usr=0.06%, sys=2.55%, ctx=1256, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181396: Sat Sep 5 07:16:38 2026 read: IOPS=9, BW=146KiB/s (150kB/s)(5744KiB/39220msec) clat (msec): min=7, max=175, avg=40.03, stdev=34.91 lat (msec): min=7, max=175, avg=40.03, stdev=34.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 57], 90.00th=[ 101], 95.00th=[ 121], | 99.00th=[ 161], 99.50th=[ 169], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 30, max= 445, per=24.72%, avg=150.81, stdev=90.83, samples=74 iops : min= 1, max= 27, avg= 8.64, stdev= 5.74, samples=74 write: IOPS=10, BW=167KiB/s (171kB/s)(6544KiB/39220msec); 0 zone resets clat (msec): min=10, max=275, avg=60.65, stdev=37.98 lat (msec): min=10, max=275, avg=60.66, stdev=37.98 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 47], 60.00th=[ 58], | 70.00th=[ 73], 80.00th=[ 88], 90.00th=[ 120], 95.00th=[ 138], | 99.00th=[ 171], 99.50th=[ 192], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 412, per=25.69%, avg=164.96, stdev=93.52, samples=77 iops : min= 1, max= 25, avg= 9.53, stdev= 5.91, samples=77 lat (msec) : 10=0.78%, 20=15.63%, 50=48.96%, 100=21.88%, 250=12.63% lat (msec) : 500=0.13% cpu : usr=0.08%, sys=2.51%, ctx=1244, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181397: Sat Sep 5 07:16:38 2026 read: IOPS=10, BW=163KiB/s (167kB/s)(6256KiB/38450msec) clat (msec): min=6, max=175, avg=39.95, stdev=32.13 lat (msec): min=6, max=175, avg=39.95, stdev=32.12 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 43], 80.00th=[ 56], 90.00th=[ 87], 95.00th=[ 107], | 99.00th=[ 163], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 31, max= 601, per=26.64%, avg=162.53, stdev=109.67, samples=76 iops : min= 1, max= 37, avg= 9.38, stdev= 6.93, samples=76 write: IOPS=9, BW=157KiB/s (161kB/s)(6032KiB/38450msec); 0 zone resets clat (msec): min=11, max=233, avg=60.00, stdev=36.22 lat (msec): min=11, max=233, avg=60.00, stdev=36.22 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 48], 60.00th=[ 56], | 70.00th=[ 71], 80.00th=[ 90], 90.00th=[ 114], 95.00th=[ 131], | 99.00th=[ 169], 99.50th=[ 190], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 445, per=24.39%, avg=156.55, stdev=82.38, samples=76 iops : min= 1, max= 27, avg= 8.99, stdev= 5.20, samples=76 lat (msec) : 10=1.30%, 20=14.84%, 50=48.70%, 100=24.61%, 250=10.55% cpu : usr=0.06%, sys=2.63%, ctx=1296, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181398: Sat Sep 5 07:16:38 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(6032KiB/38129msec) clat (msec): min=7, max=158, avg=40.55, stdev=30.75 lat (msec): min=7, max=158, avg=40.55, stdev=30.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 49], 80.00th=[ 63], 90.00th=[ 87], 95.00th=[ 110], | 99.00th=[ 146], 99.50th=[ 155], 99.90th=[ 159], 99.95th=[ 159], | 99.99th=[ 159] bw ( KiB/s): min= 30, max= 476, per=25.98%, avg=158.46, stdev=98.12, samples=74 iops : min= 1, max= 29, avg= 9.12, stdev= 6.22, samples=74 write: IOPS=10, BW=164KiB/s (168kB/s)(6256KiB/38129msec); 0 zone resets clat (msec): min=16, max=274, avg=57.99, stdev=37.10 lat (msec): min=16, max=274, avg=57.99, stdev=37.09 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 46], 60.00th=[ 56], | 70.00th=[ 65], 80.00th=[ 81], 90.00th=[ 105], 95.00th=[ 136], | 99.00th=[ 186], 99.50th=[ 232], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 445, per=25.42%, avg=163.19, stdev=88.66, samples=75 iops : min= 1, max= 27, avg= 9.41, stdev= 5.60, samples=75 lat (msec) : 10=2.21%, 20=13.80%, 50=47.27%, 100=27.47%, 250=9.11% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=2.44%, ctx=1232, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=611KiB/s (625kB/s), 146KiB/s-163KiB/s (150kB/s-167kB/s), io=23.4MiB (24.5MB), run=38129-39220msec WRITE: bw=643KiB/s (658kB/s), 157KiB/s-167KiB/s (161kB/s-171kB/s), io=24.6MiB (25.8MB), run=38129-39220msec 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=181413: Sat Sep 5 07:16:51 2026 read: IOPS=2, BW=2381KiB/s (2439kB/s)(7168KiB/3010msec) clat (usec): min=503, max=247585, avg=162976.26, stdev=83143.69 lat (usec): min=505, max=247586, avg=162977.70, stdev=83143.63 clat percentiles (usec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[113771], | 30.00th=[183501], 40.00th=[183501], 50.00th=[183501], 60.00th=[185598], | 70.00th=[185598], 80.00th=[227541], 90.00th=[248513], 95.00th=[248513], | 99.00th=[248513], 99.50th=[248513], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 4063, max= 5180, per=96.30%, avg=4621.50, stdev=789.84, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1701KiB/s (1742kB/s)(5120KiB/3010msec); 0 zone resets clat (msec): min=261, max=511, avg=365.48, stdev=109.75 lat (msec): min=261, max=511, avg=365.58, stdev=109.78 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 2035, max= 4015, per=40.17%, avg=2699.33, stdev=1139.42, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=50.00%, 500=33.33%, 750=8.33% cpu : usr=0.03%, sys=18.61%, ctx=219, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181414: Sat Sep 5 07:16:51 2026 read: IOPS=0, BW=480KiB/s (491kB/s)(2048KiB/4267msec) clat (msec): min=159, max=338, avg=248.99, stdev=126.24 lat (msec): min=159, max=338, avg=248.99, stdev=126.24 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1768, max= 2048, per=39.76%, avg=1908.00, stdev=197.99, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2400KiB/s (2457kB/s)(10.0MiB/4267msec); 0 zone resets clat (msec): min=146, max=855, avg=365.98, stdev=192.57 lat (msec): min=148, max=855, avg=366.47, stdev=192.22 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 245], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 305], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 493], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 2031, max= 4096, per=54.35%, avg=3652.00, stdev=906.66, samples=5 iops : min= 1, max= 4, avg= 2.80, stdev= 1.10, samples=5 lat (msec) : 250=25.00%, 500=66.67%, 1000=8.33% cpu : usr=0.00%, sys=16.85%, ctx=181, 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=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=181415: Sat Sep 5 07:16:51 2026 read: IOPS=1, BW=1858KiB/s (1902kB/s)(6144KiB/3307msec) clat (usec): min=510, max=239632, avg=106663.04, stdev=117348.23 lat (usec): min=512, max=239633, avg=106663.98, stdev=117348.06 clat percentiles (usec): | 1.00th=[ 510], 5.00th=[ 510], 10.00th=[ 510], 20.00th=[ 545], | 30.00th=[ 545], 40.00th=[ 1336], 50.00th=[ 1336], 60.00th=[183501], | 70.00th=[214959], 80.00th=[214959], 90.00th=[240124], 95.00th=[240124], | 99.00th=[240124], 99.50th=[240124], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 2031, max= 6144, per=71.01%, avg=3407.67, stdev=2369.75, samples=3 iops : min= 1, max= 6, avg= 3.00, stdev= 2.65, samples=3 write: IOPS=1, BW=1858KiB/s (1902kB/s)(6144KiB/3307msec); 0 zone resets clat (msec): min=274, max=744, avg=394.03, stdev=181.11 lat (msec): min=274, max=744, avg=394.11, stdev=181.12 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 351], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1738, max= 4063, per=35.43%, avg=2380.80, stdev=949.24, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 0.84, samples=5 lat (usec) : 750=16.67% lat (msec) : 2=8.33%, 250=25.00%, 500=41.67%, 750=8.33% cpu : usr=0.00%, sys=17.57%, ctx=164, 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=181416: Sat Sep 5 07:16:51 2026 read: IOPS=1, BW=1284KiB/s (1315kB/s)(5120KiB/3988msec) clat (msec): min=88, max=348, avg=204.56, stdev=99.47 lat (msec): min=88, max=348, avg=204.56, stdev=99.47 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 89], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 178], 60.00th=[ 178], | 70.00th=[ 253], 80.00th=[ 253], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 4096, max= 4096, per=85.35%, avg=4096.00, stdev= 0.00, samples=2 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1797KiB/s (1841kB/s)(7168KiB/3988msec); 0 zone resets clat (msec): min=78, max=899, avg=400.79, stdev=311.35 lat (msec): min=78, max=899, avg=400.90, stdev=311.38 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 79], 10.00th=[ 79], 20.00th=[ 146], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 292], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 709], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 2007, max= 4096, per=45.48%, avg=3055.50, stdev=1187.19, samples=4 iops : min= 1, max= 4, avg= 2.50, stdev= 1.29, samples=4 lat (msec) : 100=16.67%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=13.69%, ctx=164, 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=4800KiB/s (4915kB/s), 480KiB/s-2381KiB/s (491kB/s-2439kB/s), io=20.0MiB (20.0MB), run=3010-4267msec WRITE: bw=6719KiB/s (6881kB/s), 1701KiB/s-2400KiB/s (1742kB/s-2457kB/s), io=28.0MiB (29.4MB), run=3010-4267msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181418: Sat Sep 5 07:16:51 2026 read: IOPS=1, BW=1583KiB/s (1621kB/s)(7168KiB/4528msec) clat (msec): min=105, max=472, avg=309.55, stdev=146.98 lat (msec): min=105, max=472, avg=309.55, stdev=146.98 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 106], 10.00th=[ 106], 20.00th=[ 129], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 309], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 439], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 1965, max= 4096, per=69.96%, avg=3045.33, stdev=1065.81, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1131KiB/s (1158kB/s)(5120KiB/4528msec); 0 zone resets clat (msec): min=128, max=811, avg=426.66, stdev=272.67 lat (msec): min=128, max=811, avg=426.75, stdev=272.67 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 380], 60.00th=[ 380], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2000, max= 4063, per=44.33%, avg=2702.00, stdev=1178.86, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=5.10%, ctx=115, 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=181419: Sat Sep 5 07:16:51 2026 read: IOPS=0, BW=435KiB/s (446kB/s)(2048KiB/4704msec) clat (msec): min=128, max=280, avg=204.45, stdev=107.86 lat (msec): min=128, max=280, avg=204.45, stdev=107.86 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 279], | 70.00th=[ 279], 80.00th=[ 279], 90.00th=[ 279], 95.00th=[ 279], | 99.00th=[ 279], 99.50th=[ 279], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 2027, max= 2031, per=46.61%, avg=2029.00, stdev= 2.83, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2177KiB/s (2229kB/s)(10.0MiB/4704msec); 0 zone resets clat (msec): min=59, max=883, avg=410.73, stdev=233.83 lat (msec): min=59, max=883, avg=411.45, stdev=233.73 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 59], 10.00th=[ 59], 20.00th=[ 88], | 30.00th=[ 292], 40.00th=[ 401], 50.00th=[ 418], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 493], 90.00th=[ 506], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 1965, max= 3075, per=36.53%, avg=2226.20, stdev=475.70, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=16.67%, 250=8.33%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.02%, sys=6.85%, ctx=110, 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=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=181420: Sat Sep 5 07:16:51 2026 read: IOPS=1, BW=1387KiB/s (1420kB/s)(6144KiB/4430msec) clat (msec): min=83, max=641, avg=405.86, stdev=183.90 lat (msec): min=83, max=641, avg=405.86, stdev=183.90 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 85], 10.00th=[ 85], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 443], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1537, max= 2048, per=44.38%, avg=1931.80, stdev=221.49, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1387KiB/s (1420kB/s)(6144KiB/4430msec); 0 zone resets clat (msec): min=157, max=491, avg=317.33, stdev=142.30 lat (msec): min=157, max=491, avg=317.49, stdev=142.30 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 207], | 30.00th=[ 207], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 292], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 1537, max= 2048, per=31.46%, avg=1917.60, stdev=215.03, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=16.67%, 500=66.67%, 750=8.33% cpu : usr=0.05%, sys=4.04%, ctx=110, 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=181421: Sat Sep 5 07:16:51 2026 read: IOPS=1, BW=1102KiB/s (1129kB/s)(5120KiB/4644msec) clat (msec): min=74, max=669, avg=325.04, stdev=242.66 lat (msec): min=74, max=669, avg=325.04, stdev=242.66 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 74], | 30.00th=[ 109], 40.00th=[ 109], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 1537, max= 4063, per=58.20%, avg=2533.33, stdev=1344.81, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1543KiB/s (1581kB/s)(7168KiB/4644msec); 0 zone resets clat (msec): min=112, max=862, avg=425.21, stdev=300.51 lat (msec): min=112, max=862, avg=425.30, stdev=300.50 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 220], | 30.00th=[ 239], 40.00th=[ 239], 50.00th=[ 305], 60.00th=[ 414], | 70.00th=[ 414], 80.00th=[ 827], 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= 1537, max= 2048, per=30.73%, avg=1873.25, stdev=228.68, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.00%, sys=6.50%, ctx=112, 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=4354KiB/s (4458kB/s), 435KiB/s-1583KiB/s (446kB/s-1621kB/s), io=20.0MiB (20.0MB), run=4430-4704msec WRITE: bw=6095KiB/s (6242kB/s), 1131KiB/s-2177KiB/s (1158kB/s-2229kB/s), io=28.0MiB (29.4MB), run=4430-4704msec 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=181432: Sat Sep 5 07:17:05 2026 read: IOPS=1, BW=5326KiB/s (5454kB/s)(12.0MiB/2307msec) clat (msec): min=527, max=1108, avg=742.59, stdev=318.73 lat (msec): min=527, max=1108, avg=742.59, stdev=318.73 clat percentiles (msec): | 1.00th=[ 527], 5.00th=[ 527], 10.00th=[ 527], 20.00th=[ 527], | 30.00th=[ 527], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 592], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7922, max= 8192, per=100.00%, avg=8057.00, stdev=190.92, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.99%, ctx=65, 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=181433: Sat Sep 5 07:17:05 2026 read: IOPS=0, BW=1423KiB/s (1457kB/s)(4096KiB/2879msec) clat (nsec): min=831161k, max=831161k, avg=831160759.00, stdev= 0.00 lat (nsec): min=831163k, max=831163k, avg=831163489.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 835], 50.00th=[ 835], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] 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=2845KiB/s (2914kB/s)(8192KiB/2879msec); 0 zone resets clat (msec): min=498, max=1514, avg=1006.24, stdev=718.41 lat (msec): min=498, max=1514, avg=1006.60, stdev=718.41 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 1519], | 70.00th=[ 1519], 80.00th=[ 1519], 90.00th=[ 1519], 95.00th=[ 1519], | 99.00th=[ 1519], 99.50th=[ 1519], 99.90th=[ 1519], 99.95th=[ 1519], | 99.99th=[ 1519] bw ( KiB/s): min= 8192, max= 8192, per=71.98%, 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%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.56%, ctx=70, 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=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=181434: Sat Sep 5 07:17:05 2026 write: IOPS=1, BW=4509KiB/s (4618kB/s)(12.0MiB/2725msec); 0 zone resets clat (msec): min=224, max=1460, avg=881.07, stdev=621.57 lat (msec): min=224, max=1460, avg=881.87, stdev=621.67 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 961], 50.00th=[ 961], 60.00th=[ 961], | 70.00th=[ 1469], 80.00th=[ 1469], 90.00th=[ 1469], 95.00th=[ 1469], | 99.00th=[ 1469], 99.50th=[ 1469], 99.90th=[ 1469], 99.95th=[ 1469], | 99.99th=[ 1469] bw ( KiB/s): min= 7922, max= 8192, per=70.79%, avg=8057.00, stdev=190.92, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.56%, ctx=47, 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=181435: Sat Sep 5 07:17:05 2026 write: IOPS=1, BW=6219KiB/s (6368kB/s)(12.0MiB/1976msec); 0 zone resets clat (msec): min=344, max=838, avg=637.56, stdev=259.43 lat (msec): min=345, max=838, avg=637.83, stdev=259.32 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8175, max= 8175, per=71.83%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=8.30%, ctx=87, 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=5691KiB/s (5827kB/s), 1423KiB/s-5326KiB/s (1457kB/s-5454kB/s), io=16.0MiB (16.8MB), run=2307-2879msec WRITE: bw=11.1MiB/s (11.7MB/s), 2845KiB/s-6219KiB/s (2914kB/s-6368kB/s), io=32.0MiB (33.6MB), run=1976-2879msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181428: Sat Sep 5 07:17:05 2026 read: IOPS=1, BW=6169KiB/s (6317kB/s)(12.0MiB/1992msec) clat (msec): min=555, max=808, avg=645.36, stdev=141.48 lat (msec): min=555, max=808, avg=645.37, stdev=141.47 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 7892, max= 8159, per=100.00%, avg=8025.50, stdev=188.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=15.52%, ctx=278, 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=181429: Sat Sep 5 07:17:05 2026 read: IOPS=0, BW=1628KiB/s (1667kB/s)(4096KiB/2516msec) clat (nsec): min=761577k, max=761577k, avg=761576614.00, stdev= 0.00 lat (nsec): min=761579k, max=761579k, avg=761579023.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 760], 80.00th=[ 760], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] 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 write: IOPS=0, BW=3256KiB/s (3334kB/s)(8192KiB/2516msec); 0 zone resets clat (msec): min=820, max=889, avg=854.72, stdev=48.83 lat (msec): min=820, max=889, avg=855.04, stdev=48.83 clat percentiles (msec): | 1.00th=[ 818], 5.00th=[ 818], 10.00th=[ 818], 20.00th=[ 818], | 30.00th=[ 818], 40.00th=[ 818], 50.00th=[ 818], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7892, max= 7892, per=73.29%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=5.65%, ctx=105, 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=181430: Sat Sep 5 07:17:05 2026 write: IOPS=0, BW=4038KiB/s (4135kB/s)(12.0MiB/3043msec); 0 zone resets clat (msec): min=179, max=1892, avg=996.11, stdev=859.07 lat (msec): min=179, max=1892, avg=996.67, stdev=859.42 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8078, max= 8078, per=75.02%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.04%, ctx=73, 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=181431: Sat Sep 5 07:17:05 2026 write: IOPS=1, BW=5245KiB/s (5370kB/s)(12.0MiB/2343msec); 0 zone resets clat (msec): min=190, max=1196, avg=767.85, stdev=518.99 lat (msec): min=191, max=1199, avg=769.04, stdev=519.94 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 1200], 80.00th=[ 1200], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7892, max= 7892, per=73.29%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.91%, ctx=45, 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=6512KiB/s (6668kB/s), 1628KiB/s-6169KiB/s (1667kB/s-6317kB/s), io=16.0MiB (16.8MB), run=1992-2516msec WRITE: bw=10.5MiB/s (11.0MB/s), 3256KiB/s-5245KiB/s (3334kB/s-5370kB/s), io=32.0MiB (33.6MB), run=2343-3043msec