== sanity test 398b: DIO and buffer IO race ============== 10:33:45 (1790951625) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.1302 s, 9.8 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=180848: Fri Oct 2 10:36:12 2026 read: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5992KiB/127778msec) clat (usec): min=33, max=793429, avg=46348.04, stdev=39481.72 lat (usec): min=34, max=793430, avg=46351.40, stdev=39481.51 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 9110], 10.00th=[ 15270], 20.00th=[ 21365], | 30.00th=[ 26870], 40.00th=[ 31851], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 66323], 90.00th=[ 86508], 95.00th=[111674], | 99.00th=[173016], 99.50th=[200279], 99.90th=[400557], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 112, per=25.52%, avg=46.70, stdev=22.76, samples=250 iops : min= 1, max= 28, avg=11.02, stdev= 5.73, samples=250 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(6296KiB/127778msec); 0 zone resets clat (usec): min=954, max=610433, avg=36788.90, stdev=45754.87 lat (usec): min=955, max=610434, avg=36791.39, stdev=45754.93 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1647], 20.00th=[ 3425], | 30.00th=[ 6194], 40.00th=[ 13435], 50.00th=[ 21627], 60.00th=[ 31327], | 70.00th=[ 44827], 80.00th=[ 62129], 90.00th=[ 91751], 95.00th=[121111], | 99.00th=[200279], 99.50th=[250610], 99.90th=[337642], 99.95th=[608175], | 99.99th=[608175] bw ( KiB/s): min= 7, max= 159, per=25.68%, avg=49.30, stdev=25.50, samples=249 iops : min= 1, max= 39, avg=11.67, stdev= 6.42, samples=249 lat (usec) : 50=0.39%, 100=1.30%, 250=0.20%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=6.54%, 4=5.05%, 10=7.49%, 20=11.88%, 50=37.57% lat (msec) : 100=22.01%, 250=7.03%, 500=0.29%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.30%, ctx=6389, 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=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=180850: Fri Oct 2 10:36:12 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5940KiB/128205msec) clat (usec): min=39, max=265837, avg=46704.18, stdev=35590.60 lat (usec): min=39, max=265838, avg=46706.71, stdev=35590.85 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8455], 10.00th=[ 14091], 20.00th=[ 20317], | 30.00th=[ 25297], 40.00th=[ 31327], 50.00th=[ 37487], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 67634], 90.00th=[ 91751], 95.00th=[117965], | 99.00th=[177210], 99.50th=[198181], 99.90th=[238027], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 5, max= 125, per=25.34%, avg=46.37, stdev=22.35, samples=248 iops : min= 1, max= 31, avg=10.93, stdev= 5.61, samples=248 write: IOPS=12, BW=49.5KiB/s (50.7kB/s)(6348KiB/128205msec); 0 zone resets clat (usec): min=865, max=791025, avg=36834.80, stdev=51251.20 lat (usec): min=865, max=791027, avg=36836.84, stdev=51250.94 clat percentiles (usec): | 1.00th=[ 1045], 5.00th=[ 1205], 10.00th=[ 1582], 20.00th=[ 3326], | 30.00th=[ 6652], 40.00th=[ 14877], 50.00th=[ 23462], 60.00th=[ 32900], | 70.00th=[ 43254], 80.00th=[ 58983], 90.00th=[ 88605], 95.00th=[122160], | 99.00th=[193987], 99.50th=[233833], 99.90th=[759170], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 5, max= 175, per=25.78%, avg=49.50, stdev=26.25, samples=248 iops : min= 1, max= 43, avg=11.71, stdev= 6.60, samples=248 lat (usec) : 50=0.29%, 100=1.46%, 250=0.23%, 500=0.07%, 1000=0.20% lat (msec) : 2=6.58%, 4=5.14%, 10=7.10%, 20=12.40%, 50=36.78% lat (msec) : 100=21.74%, 250=7.75%, 500=0.16%, 750=0.03%, 1000=0.07% cpu : usr=0.06%, sys=5.18%, ctx=6515, 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=180851: Fri Oct 2 10:36:12 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6028KiB/130266msec) clat (usec): min=44, max=421095, avg=46447.25, stdev=37617.04 lat (usec): min=45, max=421095, avg=46449.32, stdev=37617.29 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 8848], 10.00th=[ 14091], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 53216], 80.00th=[ 66847], 90.00th=[ 89654], 95.00th=[112722], | 99.00th=[183501], 99.50th=[212861], 99.90th=[341836], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 7, max= 118, per=25.60%, avg=46.85, stdev=23.43, samples=251 iops : min= 1, max= 29, avg=11.05, stdev= 5.89, samples=251 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(6260KiB/130266msec); 0 zone resets clat (usec): min=940, max=855641, avg=38248.47, stdev=51726.63 lat (usec): min=941, max=855642, avg=38253.31, stdev=51725.64 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1745], 20.00th=[ 3851], | 30.00th=[ 7767], 40.00th=[ 15533], 50.00th=[ 24511], 60.00th=[ 33424], | 70.00th=[ 46400], 80.00th=[ 62653], 90.00th=[ 90702], 95.00th=[116917], | 99.00th=[196084], 99.50th=[225444], 99.90th=[809501], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 120, per=25.21%, avg=48.40, stdev=23.59, samples=252 iops : min= 1, max= 30, avg=11.46, stdev= 5.95, samples=252 lat (usec) : 50=0.29%, 100=1.50%, 250=0.20%, 500=0.10%, 750=0.10% lat (usec) : 1000=0.13% lat (msec) : 2=5.79%, 4=4.62%, 10=7.06%, 20=12.27%, 50=37.76% lat (msec) : 100=22.36%, 250=7.42%, 500=0.29%, 750=0.03%, 1000=0.07% cpu : usr=0.07%, sys=5.34%, ctx=6580, 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=180854: Fri Oct 2 10:36:12 2026 read: IOPS=11, BW=46.2KiB/s (47.3kB/s)(6052KiB/130937msec) clat (usec): min=29, max=348446, avg=46273.49, stdev=35794.23 lat (usec): min=30, max=348447, avg=46278.71, stdev=35792.80 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 145], 10.00th=[ 14091], 20.00th=[ 21103], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 66847], 90.00th=[ 88605], 95.00th=[115868], | 99.00th=[162530], 99.50th=[210764], 99.90th=[291505], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 7, max= 119, per=25.42%, avg=46.51, stdev=21.63, samples=253 iops : min= 1, max= 29, avg=10.97, stdev= 5.45, samples=253 write: IOPS=11, BW=47.6KiB/s (48.8kB/s)(6236KiB/130937msec); 0 zone resets clat (usec): min=819, max=854665, avg=38829.26, stdev=51902.27 lat (usec): min=819, max=854668, avg=38832.16, stdev=51901.85 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1270], 10.00th=[ 1876], 20.00th=[ 4113], | 30.00th=[ 7832], 40.00th=[ 16909], 50.00th=[ 25035], 60.00th=[ 34341], | 70.00th=[ 46924], 80.00th=[ 64226], 90.00th=[ 91751], 95.00th=[121111], | 99.00th=[189793], 99.50th=[229639], 99.90th=[767558], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 142, per=24.93%, avg=47.87, stdev=25.61, samples=253 iops : min= 1, max= 35, avg=11.32, stdev= 6.45, samples=253 lat (usec) : 50=0.42%, 100=1.79%, 250=0.33%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=5.34%, 4=4.56%, 10=7.23%, 20=11.23%, 50=38.18% lat (msec) : 100=22.66%, 250=7.45%, 500=0.23%, 750=0.03%, 1000=0.07% cpu : usr=0.08%, sys=5.20%, ctx=6517, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=183KiB/s (188kB/s), 46.2KiB/s-46.9KiB/s (47.3kB/s-48.0kB/s), io=23.4MiB (24.6MB), run=127778-130937msec WRITE: bw=192KiB/s (197kB/s), 47.6KiB/s-49.5KiB/s (48.8kB/s-50.7kB/s), io=24.6MiB (25.7MB), run=127778-130937msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180849: Fri Oct 2 10:36:55 2026 read: IOPS=8, BW=34.5KiB/s (35.3kB/s)(5992KiB/173912msec) clat (msec): min=5, max=800, avg=46.71, stdev=51.70 lat (msec): min=5, max=800, avg=46.71, stdev=51.70 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 49], 80.00th=[ 67], 90.00th=[ 101], 95.00th=[ 142], | 99.00th=[ 230], 99.50th=[ 292], 99.90th=[ 584], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 5, max= 134, per=25.91%, avg=35.76, stdev=24.62, samples=326 iops : min= 1, max= 33, avg= 8.31, stdev= 6.22, samples=326 write: IOPS=9, BW=36.2KiB/s (37.1kB/s)(6296KiB/173912msec); 0 zone resets clat (msec): min=8, max=822, avg=65.80, stdev=56.15 lat (msec): min=8, max=822, avg=65.80, stdev=56.15 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 57], | 70.00th=[ 71], 80.00th=[ 91], 90.00th=[ 133], 95.00th=[ 174], | 99.00th=[ 271], 99.50th=[ 326], 99.90th=[ 451], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 7, max= 110, per=25.22%, avg=36.31, stdev=23.34, samples=337 iops : min= 1, max= 27, avg= 8.44, stdev= 5.89, samples=337 lat (msec) : 10=2.41%, 20=13.93%, 50=45.80%, 100=24.71%, 250=12.08% lat (msec) : 500=0.94%, 750=0.07%, 1000=0.07% cpu : usr=0.05%, sys=1.73%, ctx=4818, 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=180852: Fri Oct 2 10:36:55 2026 read: IOPS=8, BW=34.2KiB/s (34.0kB/s)(5940KiB/173888msec) clat (msec): min=5, max=820, avg=47.14, stdev=54.69 lat (msec): min=5, max=820, avg=47.14, stdev=54.69 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 104], 95.00th=[ 146], | 99.00th=[ 247], 99.50th=[ 279], 99.90th=[ 726], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 141, per=26.00%, avg=35.89, stdev=24.64, samples=322 iops : min= 1, max= 35, avg= 8.33, stdev= 6.23, samples=322 write: IOPS=9, BW=36.5KiB/s (37.4kB/s)(6348KiB/173888msec); 0 zone resets clat (msec): min=11, max=783, avg=65.23, stdev=52.20 lat (msec): min=11, max=783, avg=65.23, stdev=52.20 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 59], | 70.00th=[ 72], 80.00th=[ 90], 90.00th=[ 131], 95.00th=[ 167], | 99.00th=[ 264], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 103, per=25.71%, avg=37.02, stdev=23.56, samples=334 iops : min= 1, max= 25, avg= 8.61, stdev= 5.93, samples=334 lat (msec) : 10=2.34%, 20=14.49%, 50=44.69%, 100=24.77%, 250=12.70% lat (msec) : 500=0.91%, 750=0.03%, 1000=0.07% cpu : usr=0.05%, sys=1.79%, ctx=4703, 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=180853: Fri Oct 2 10:36:55 2026 read: IOPS=8, BW=34.7KiB/s (35.5kB/s)(6028KiB/173893msec) clat (msec): min=5, max=527, avg=45.42, stdev=45.67 lat (msec): min=5, max=527, avg=45.42, stdev=45.67 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 22], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 64], 90.00th=[ 101], 95.00th=[ 138], | 99.00th=[ 207], 99.50th=[ 266], 99.90th=[ 422], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 7, max= 142, per=25.91%, avg=35.76, stdev=23.85, samples=328 iops : min= 1, max= 35, avg= 8.30, stdev= 6.03, samples=328 write: IOPS=8, BW=35.0KiB/s (36.9kB/s)(6260KiB/173893msec); 0 zone resets clat (msec): min=13, max=847, avg=67.15, stdev=58.95 lat (msec): min=13, max=847, avg=67.15, stdev=58.95 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 48], 60.00th=[ 58], | 70.00th=[ 72], 80.00th=[ 96], 90.00th=[ 136], 95.00th=[ 169], | 99.00th=[ 279], 99.50th=[ 338], 99.90th=[ 751], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 118, per=25.27%, avg=36.38, stdev=23.47, samples=335 iops : min= 1, max= 29, avg= 8.45, stdev= 5.92, samples=335 lat (msec) : 10=1.79%, 20=14.10%, 50=46.48%, 100=23.40%, 250=13.22% lat (msec) : 500=0.91%, 750=0.07%, 1000=0.03% cpu : usr=0.04%, sys=1.77%, ctx=4808, 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=180855: Fri Oct 2 10:36:55 2026 read: IOPS=8, BW=35.0KiB/s (35.9kB/s)(6052KiB/172769msec) clat (msec): min=6, max=790, avg=45.19, stdev=48.47 lat (msec): min=6, max=790, avg=45.19, stdev=48.47 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 99], 95.00th=[ 133], | 99.00th=[ 220], 99.50th=[ 253], 99.90th=[ 542], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 7, max= 127, per=26.36%, avg=36.37, stdev=25.24, samples=323 iops : min= 1, max= 31, avg= 8.46, stdev= 6.38, samples=323 write: IOPS=9, BW=36.1KiB/s (36.0kB/s)(6236KiB/172769msec); 0 zone resets clat (msec): min=11, max=847, avg=66.74, stdev=55.83 lat (msec): min=11, max=847, avg=66.74, stdev=55.83 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 20], 10.00th=[ 25], 20.00th=[ 31], | 30.00th=[ 36], 40.00th=[ 42], 50.00th=[ 49], 60.00th=[ 60], | 70.00th=[ 71], 80.00th=[ 92], 90.00th=[ 134], 95.00th=[ 174], | 99.00th=[ 271], 99.50th=[ 321], 99.90th=[ 502], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 118, per=25.47%, avg=36.67, stdev=22.76, samples=330 iops : min= 1, max= 29, avg= 8.53, stdev= 5.74, samples=330 lat (msec) : 10=2.18%, 20=15.82%, 50=43.29%, 100=25.36%, 250=12.34% lat (msec) : 500=0.88%, 750=0.07%, 1000=0.07% cpu : usr=0.05%, sys=1.71%, ctx=4639, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=138KiB/s (141kB/s), 34.2KiB/s-35.0KiB/s (34.0kB/s-35.9kB/s), io=23.4MiB (24.6MB), run=172769-173912msec WRITE: bw=145KiB/s (148kB/s), 35.0KiB/s-36.5KiB/s (36.9kB/s-37.4kB/s), io=24.6MiB (25.7MB), run=172769-173912msec 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=180895: Fri Oct 2 10:37:43 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5920KiB/35646msec) clat (usec): min=44, max=421245, avg=51937.19, stdev=40269.20 lat (usec): min=45, max=421246, avg=51938.50, stdev=40269.08 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 12911], 20.00th=[ 25297], | 30.00th=[ 30802], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 53216], | 70.00th=[ 63177], 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[114820], | 99.00th=[187696], 99.50th=[210764], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 31, max= 351, per=26.26%, avg=164.94, stdev=76.47, samples=70 iops : min= 1, max= 21, avg= 9.49, stdev= 4.80, samples=70 write: IOPS=11, BW=179KiB/s (183kB/s)(6368KiB/35646msec); 0 zone resets clat (usec): min=1306, max=508605, avg=41067.27, stdev=52720.79 lat (usec): min=1308, max=508606, avg=41073.20, stdev=52725.87 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1713], 10.00th=[ 2442], 20.00th=[ 6259], | 30.00th=[ 10028], 40.00th=[ 16581], 50.00th=[ 25560], 60.00th=[ 33424], | 70.00th=[ 44303], 80.00th=[ 64750], 90.00th=[ 99091], 95.00th=[139461], | 99.00th=[254804], 99.50th=[299893], 99.90th=[509608], 99.95th=[509608], | 99.99th=[509608] bw ( KiB/s): min= 61, max= 381, per=28.24%, avg=186.40, stdev=83.31, samples=67 iops : min= 3, max= 23, avg=10.85, stdev= 5.21, samples=67 lat (usec) : 50=0.39%, 100=2.73%, 250=0.39%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.13% lat (msec) : 2=4.30%, 4=3.12%, 10=8.85%, 20=10.81%, 50=33.33% lat (msec) : 100=26.82%, 250=8.07%, 500=0.65%, 750=0.13% cpu : usr=0.07%, sys=5.21%, ctx=1573, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180896: Fri Oct 2 10:37:43 2026 read: IOPS=9, BW=159KiB/s (163kB/s)(5744KiB/36174msec) clat (usec): min=37, max=242046, avg=52400.29, stdev=39293.07 lat (usec): min=37, max=242047, avg=52401.46, stdev=39293.05 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 113], 20.00th=[ 24511], | 30.00th=[ 32113], 40.00th=[ 36439], 50.00th=[ 45351], 60.00th=[ 53740], | 70.00th=[ 62653], 80.00th=[ 76022], 90.00th=[ 98042], 95.00th=[135267], | 99.00th=[181404], 99.50th=[193987], 99.90th=[242222], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 31, max= 380, per=25.63%, avg=160.96, stdev=67.00, samples=70 iops : min= 1, max= 23, avg= 9.27, stdev= 4.26, samples=70 write: IOPS=11, BW=181KiB/s (185kB/s)(6544KiB/36174msec); 0 zone resets clat (usec): min=1397, max=469054, avg=41793.93, stdev=47008.90 lat (usec): min=1400, max=469056, avg=41796.55, stdev=47008.96 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1778], 10.00th=[ 3064], 20.00th=[ 6259], | 30.00th=[ 12256], 40.00th=[ 20579], 50.00th=[ 27919], 60.00th=[ 40109], | 70.00th=[ 51119], 80.00th=[ 66323], 90.00th=[ 95945], 95.00th=[137364], | 99.00th=[187696], 99.50th=[240124], 99.90th=[467665], 99.95th=[467665], | 99.99th=[467665] bw ( KiB/s): min= 31, max= 415, per=27.22%, avg=179.65, stdev=82.30, samples=71 iops : min= 1, max= 25, avg=10.45, stdev= 5.24, samples=71 lat (usec) : 50=0.65%, 100=3.78%, 250=0.52% lat (msec) : 2=4.17%, 4=2.99%, 10=6.51%, 20=10.55%, 50=32.81% lat (msec) : 100=29.04%, 250=8.85%, 500=0.13% cpu : usr=0.05%, sys=5.48%, ctx=1641, 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=180898: Fri Oct 2 10:37:43 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(6256KiB/37655msec) clat (usec): min=48, max=413939, avg=55069.63, stdev=43396.11 lat (usec): min=49, max=413941, avg=55072.64, stdev=43398.02 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 16581], 20.00th=[ 26608], | 30.00th=[ 32113], 40.00th=[ 39584], 50.00th=[ 46400], 60.00th=[ 54264], | 70.00th=[ 63701], 80.00th=[ 74974], 90.00th=[107480], 95.00th=[128451], | 99.00th=[206570], 99.50th=[270533], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 31, max= 319, per=26.75%, avg=167.99, stdev=75.09, samples=73 iops : min= 1, max= 19, avg= 9.68, stdev= 4.70, samples=73 write: IOPS=10, BW=160KiB/s (164kB/s)(6032KiB/37655msec); 0 zone resets clat (usec): min=1372, max=619805, avg=41951.35, stdev=55195.22 lat (usec): min=1373, max=619808, avg=41958.54, stdev=55198.56 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 2008], 10.00th=[ 3294], 20.00th=[ 6587], | 30.00th=[ 11076], 40.00th=[ 16909], 50.00th=[ 26084], 60.00th=[ 34866], | 70.00th=[ 48497], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[130548], | 99.00th=[274727], 99.50th=[367002], 99.90th=[616563], 99.95th=[616563], | 99.99th=[616563] bw ( KiB/s): min= 31, max= 415, per=24.14%, avg=159.32, stdev=88.18, samples=73 iops : min= 1, max= 25, avg= 9.15, stdev= 5.56, samples=73 lat (usec) : 50=0.13%, 100=2.99%, 250=0.52% lat (msec) : 2=2.34%, 4=4.04%, 10=7.68%, 20=10.42%, 50=34.77% lat (msec) : 100=26.69%, 250=9.51%, 500=0.78%, 750=0.13% cpu : usr=0.07%, sys=4.85%, ctx=1686, 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=180900: Fri Oct 2 10:37:43 2026 read: IOPS=9, BW=158KiB/s (162kB/s)(6032KiB/38138msec) clat (usec): min=44, max=353318, avg=54135.78, stdev=42984.95 lat (usec): min=45, max=353319, avg=54137.00, stdev=42984.99 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 12387], 20.00th=[ 23987], | 30.00th=[ 31327], 40.00th=[ 36963], 50.00th=[ 44303], 60.00th=[ 52691], | 70.00th=[ 63177], 80.00th=[ 81265], 90.00th=[107480], 95.00th=[141558], | 99.00th=[198181], 99.50th=[231736], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 31, max= 380, per=25.10%, avg=157.65, stdev=80.21, samples=74 iops : min= 1, max= 23, avg= 9.03, stdev= 5.04, samples=74 write: IOPS=10, BW=164KiB/s (168kB/s)(6256KiB/38138msec); 0 zone resets clat (usec): min=1373, max=579783, avg=44244.18, stdev=52538.15 lat (usec): min=1375, max=579785, avg=44246.56, stdev=52538.19 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1860], 10.00th=[ 3687], 20.00th=[ 7701], | 30.00th=[ 12125], 40.00th=[ 21365], 50.00th=[ 30540], 60.00th=[ 40109], | 70.00th=[ 51119], 80.00th=[ 69731], 90.00th=[106431], 95.00th=[141558], | 99.00th=[196084], 99.50th=[337642], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 31, max= 348, per=24.98%, avg=164.88, stdev=83.60, samples=74 iops : min= 1, max= 21, avg= 9.49, stdev= 5.26, samples=74 lat (usec) : 50=0.26%, 100=3.52%, 250=0.39%, 500=0.26%, 1000=0.13% lat (msec) : 2=2.60%, 4=2.99%, 10=7.16%, 20=9.77%, 50=36.98% lat (msec) : 100=24.48%, 250=10.94%, 500=0.39%, 750=0.13% cpu : usr=0.05%, sys=4.75%, ctx=1652, 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=628KiB/s (643kB/s), 158KiB/s-166KiB/s (162kB/s-170kB/s), io=23.4MiB (24.5MB), run=35646-38138msec WRITE: bw=661KiB/s (677kB/s), 160KiB/s-181KiB/s (164kB/s-185kB/s), io=24.6MiB (25.8MB), run=35646-38138msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180897: Fri Oct 2 10:37:54 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(5920KiB/47744msec) clat (msec): min=7, max=575, avg=51.93, stdev=58.39 lat (msec): min=7, max=575, avg=51.93, stdev=58.39 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 40], | 70.00th=[ 53], 80.00th=[ 73], 90.00th=[ 114], 95.00th=[ 165], | 99.00th=[ 284], 99.50th=[ 317], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 30, max= 414, per=25.94%, avg=127.63, stdev=92.40, samples=91 iops : min= 1, max= 25, avg= 7.18, stdev= 5.81, samples=91 write: IOPS=8, BW=133KiB/s (137kB/s)(6368KiB/47744msec); 0 zone resets clat (msec): min=12, max=339, avg=70.86, stdev=56.61 lat (msec): min=12, max=339, avg=70.87, stdev=56.61 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 51], 60.00th=[ 65], | 70.00th=[ 80], 80.00th=[ 107], 90.00th=[ 140], 95.00th=[ 184], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 384, per=27.10%, avg=140.38, stdev=97.96, samples=89 iops : min= 1, max= 24, avg= 7.98, stdev= 6.23, samples=89 lat (msec) : 10=1.56%, 20=14.71%, 50=42.19%, 100=23.83%, 250=15.76% lat (msec) : 500=1.82%, 750=0.13% cpu : usr=0.04%, sys=1.60%, ctx=1177, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180899: Fri Oct 2 10:37:54 2026 read: IOPS=7, BW=118KiB/s (121kB/s)(5744KiB/48630msec) clat (msec): min=6, max=305, avg=47.43, stdev=49.59 lat (msec): min=6, max=305, avg=47.43, stdev=49.59 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 46], 80.00th=[ 66], 90.00th=[ 107], 95.00th=[ 161], | 99.00th=[ 257], 99.50th=[ 296], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 415, per=27.39%, avg=134.77, stdev=96.18, samples=82 iops : min= 1, max= 25, avg= 7.62, stdev= 6.06, samples=82 write: IOPS=8, BW=135KiB/s (138kB/s)(6544KiB/48630msec); 0 zone resets clat (msec): min=12, max=626, avg=76.45, stdev=74.69 lat (msec): min=12, max=626, avg=76.46, stdev=74.69 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 79], 80.00th=[ 111], 90.00th=[ 174], 95.00th=[ 220], | 99.00th=[ 380], 99.50th=[ 472], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 30, max= 384, per=25.39%, avg=131.51, stdev=92.81, samples=94 iops : min= 1, max= 24, avg= 7.43, stdev= 5.88, samples=94 lat (msec) : 10=1.56%, 20=14.58%, 50=45.96%, 100=20.96%, 250=14.32% lat (msec) : 500=2.47%, 750=0.13% cpu : usr=0.05%, sys=1.57%, ctx=1240, 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=180901: Fri Oct 2 10:37:54 2026 read: IOPS=8, BW=130KiB/s (133kB/s)(6256KiB/48176msec) clat (msec): min=5, max=645, avg=52.44, stdev=63.71 lat (msec): min=5, max=645, avg=52.44, stdev=63.71 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 51], 80.00th=[ 71], 90.00th=[ 128], 95.00th=[ 178], | 99.00th=[ 288], 99.50th=[ 477], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 30, max= 508, per=27.88%, avg=137.16, stdev=109.66, samples=90 iops : min= 1, max= 31, avg= 7.78, stdev= 6.91, samples=90 write: IOPS=7, BW=125KiB/s (128kB/s)(6032KiB/48176msec); 0 zone resets clat (msec): min=15, max=410, avg=73.04, stdev=59.60 lat (msec): min=15, max=410, avg=73.05, stdev=59.60 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 21], 10.00th=[ 23], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 64], | 70.00th=[ 85], 80.00th=[ 111], 90.00th=[ 153], 95.00th=[ 199], | 99.00th=[ 305], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 31, max= 416, per=25.18%, avg=130.44, stdev=92.43, samples=91 iops : min= 1, max= 26, avg= 7.35, stdev= 5.85, samples=91 lat (msec) : 10=1.17%, 20=17.06%, 50=41.41%, 100=21.22%, 250=17.45% lat (msec) : 500=1.56%, 750=0.13% cpu : usr=0.06%, sys=1.53%, ctx=1222, 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=180902: Fri Oct 2 10:37:54 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(6032KiB/48232msec) clat (msec): min=7, max=483, avg=53.68, stdev=58.24 lat (msec): min=7, max=483, avg=53.68, stdev=58.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 41], | 70.00th=[ 53], 80.00th=[ 81], 90.00th=[ 127], 95.00th=[ 171], | 99.00th=[ 288], 99.50th=[ 351], 99.90th=[ 485], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 31, max= 411, per=27.18%, avg=133.70, stdev=90.89, samples=88 iops : min= 1, max= 25, avg= 7.57, stdev= 5.75, samples=88 write: IOPS=8, BW=130KiB/s (133kB/s)(6256KiB/48232msec); 0 zone resets clat (msec): min=13, max=622, avg=70.84, stdev=64.50 lat (msec): min=13, max=622, avg=70.85, stdev=64.50 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 42], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 97], 90.00th=[ 142], 95.00th=[ 199], | 99.00th=[ 305], 99.50th=[ 464], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 31, max= 476, per=26.93%, avg=139.52, stdev=98.41, samples=88 iops : min= 1, max= 29, avg= 7.92, stdev= 6.22, samples=88 lat (msec) : 10=1.43%, 20=13.93%, 50=43.75%, 100=23.83%, 250=15.10% lat (msec) : 500=1.82%, 750=0.13% cpu : usr=0.03%, sys=1.52%, ctx=1218, 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=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=493KiB/s (504kB/s), 118KiB/s-130KiB/s (121kB/s-133kB/s), io=23.4MiB (24.5MB), run=47744-48630msec WRITE: bw=518KiB/s (531kB/s), 125KiB/s-135KiB/s (128kB/s-138kB/s), io=24.6MiB (25.8MB), run=47744-48630msec 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=180920: Fri Oct 2 10:38:07 2026 read: IOPS=1, BW=1915KiB/s (1960kB/s)(7168KiB/3744msec) clat (msec): min=3, max=542, avg=246.01, stdev=169.12 lat (msec): min=3, max=542, avg=246.01, stdev=169.12 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 130], | 30.00th=[ 197], 40.00th=[ 197], 50.00th=[ 228], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 317], 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= 2000, max= 3992, per=53.54%, avg=2928.75, stdev=1063.78, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1368KiB/s (1400kB/s)(5120KiB/3744msec); 0 zone resets clat (msec): min=218, max=694, avg=403.54, stdev=184.75 lat (msec): min=218, max=694, avg=403.62, stdev=184.76 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 220], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1848, max= 3915, per=31.74%, avg=2431.00, stdev=991.38, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 4=8.33%, 250=33.33%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=15.87%, ctx=239, 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=180921: Fri Oct 2 10:38:07 2026 read: IOPS=0, BW=593KiB/s (608kB/s)(2048KiB/3451msec) clat (msec): min=3, max=128, avg=66.28, stdev=88.63 lat (msec): min=3, max=128, avg=66.28, stdev=88.63 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 4], 40.00th=[ 4], 50.00th=[ 4], 60.00th=[ 129], | 70.00th=[ 129], 80.00th=[ 129], 90.00th=[ 129], 95.00th=[ 129], | 99.00th=[ 129], 99.50th=[ 129], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 1750, max= 1996, per=34.24%, avg=1873.00, stdev=173.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2967KiB/s (3038kB/s)(10.0MiB/3451msec); 0 zone resets clat (msec): min=65, max=588, avg=331.37, stdev=181.09 lat (msec): min=65, max=589, avg=331.74, stdev=181.25 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 130], | 30.00th=[ 148], 40.00th=[ 220], 50.00th=[ 338], 60.00th=[ 397], | 70.00th=[ 422], 80.00th=[ 489], 90.00th=[ 514], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1957, max= 8110, per=47.08%, avg=3605.60, stdev=2666.71, samples=5 iops : min= 1, max= 7, avg= 2.60, stdev= 2.61, samples=5 lat (msec) : 4=8.33%, 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67% cpu : usr=0.06%, sys=20.96%, ctx=138, 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=180922: Fri Oct 2 10:38:07 2026 read: IOPS=1, BW=1668KiB/s (1708kB/s)(6144KiB/3683msec) clat (usec): min=1673, max=333231, avg=149330.62, stdev=161513.21 lat (usec): min=1675, max=333233, avg=149332.01, stdev=161513.16 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 1680], 10.00th=[ 1680], 20.00th=[ 2900], | 30.00th=[ 2900], 40.00th=[ 4817], 50.00th=[ 4817], 60.00th=[270533], | 70.00th=[278922], 80.00th=[278922], 90.00th=[333448], 95.00th=[333448], | 99.00th=[333448], 99.50th=[333448], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 3992, max= 6000, per=91.33%, avg=4996.00, stdev=1419.87, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1668KiB/s (1708kB/s)(6144KiB/3683msec); 0 zone resets clat (msec): min=98, max=1171, avg=463.85, stdev=394.29 lat (msec): min=98, max=1171, avg=463.95, stdev=394.31 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 100], 10.00th=[ 100], 20.00th=[ 165], | 30.00th=[ 165], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 472], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1848, max= 4000, per=30.80%, avg=2359.00, stdev=919.95, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 4=8.33%, 10=8.33%, 100=8.33%, 250=8.33% lat (msec) : 500=41.67%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.02%, ctx=187, 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=180923: Fri Oct 2 10:38:07 2026 read: IOPS=1, BW=1369KiB/s (1402kB/s)(5120KiB/3740msec) clat (usec): min=1664, max=310161, avg=113900.17, stdev=134948.91 lat (usec): min=1665, max=310162, avg=113901.31, stdev=134948.77 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1663], 10.00th=[ 1663], 20.00th=[ 1663], | 30.00th=[ 3654], 40.00th=[ 3654], 50.00th=[ 58983], 60.00th=[ 58983], | 70.00th=[193987], 80.00th=[193987], 90.00th=[308282], 95.00th=[308282], | 99.00th=[308282], 99.50th=[308282], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 3930, max= 4000, per=72.49%, avg=3965.00, stdev=49.50, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1917KiB/s (1963kB/s)(7168KiB/3740msec); 0 zone resets clat (msec): min=168, max=700, avg=452.64, stdev=235.84 lat (msec): min=168, max=700, avg=452.73, stdev=235.85 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 182], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 485], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 693], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1783, max= 2000, per=25.13%, avg=1924.83, stdev=88.75, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 2=8.33%, 4=8.33%, 100=8.33%, 250=25.00%, 500=25.00% lat (msec) : 750=25.00% cpu : usr=0.00%, sys=15.41%, ctx=157, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5470KiB/s (5601kB/s), 593KiB/s-1915KiB/s (608kB/s-1960kB/s), io=20.0MiB (20.0MB), run=3451-3744msec WRITE: bw=7658KiB/s (7842kB/s), 1368KiB/s-2967KiB/s (1400kB/s-3038kB/s), io=28.0MiB (29.4MB), run=3451-3744msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180915: Fri Oct 2 10:38:07 2026 read: IOPS=1, BW=1848KiB/s (1893kB/s)(7168KiB/3878msec) clat (msec): min=72, max=528, avg=199.94, stdev=183.38 lat (msec): min=72, max=528, avg=199.94, stdev=183.38 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 74], | 30.00th=[ 104], 40.00th=[ 104], 50.00th=[ 111], 60.00th=[ 117], | 70.00th=[ 117], 80.00th=[ 393], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 2027, max= 5461, per=75.21%, avg=3177.00, stdev=1978.02, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1320KiB/s (1352kB/s)(5120KiB/3878msec); 0 zone resets clat (msec): min=72, max=944, avg=480.05, stdev=356.02 lat (msec): min=72, max=944, avg=480.29, stdev=356.14 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 439], 60.00th=[ 439], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 1365, max= 1996, per=31.17%, avg=1843.20, stdev=268.67, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=25.00%, 250=33.33%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=5.03%, ctx=90, 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=180916: Fri Oct 2 10:38:07 2026 read: IOPS=0, BW=428KiB/s (439kB/s)(2048KiB/4781msec) clat (msec): min=104, max=486, avg=295.36, stdev=270.39 lat (msec): min=104, max=486, avg=295.36, stdev=270.39 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 105], 40.00th=[ 105], 50.00th=[ 105], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1950, max= 1961, per=46.29%, avg=1955.50, stdev= 7.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2142KiB/s (2193kB/s)(10.0MiB/4781msec); 0 zone resets clat (msec): min=96, max=986, avg=415.21, stdev=322.44 lat (msec): min=96, max=986, avg=415.33, stdev=322.48 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 104], | 30.00th=[ 107], 40.00th=[ 125], 50.00th=[ 309], 60.00th=[ 451], | 70.00th=[ 523], 80.00th=[ 651], 90.00th=[ 810], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1921, max= 5885, per=44.89%, avg=2654.50, stdev=1583.29, samples=6 iops : min= 1, max= 5, avg= 1.83, stdev= 1.60, samples=6 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=6.42%, ctx=89, 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=180917: Fri Oct 2 10:38:07 2026 read: IOPS=1, BW=1512KiB/s (1548kB/s)(6144KiB/4064msec) clat (msec): min=202, max=593, avg=366.03, stdev=179.24 lat (msec): min=202, max=593, avg=366.03, stdev=179.24 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 218], | 30.00th=[ 218], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 338], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1378, max= 2043, per=44.57%, avg=1882.60, stdev=283.52, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1512KiB/s (1548kB/s)(6144KiB/4064msec); 0 zone resets clat (msec): min=126, max=585, avg=299.21, stdev=191.43 lat (msec): min=126, max=585, avg=299.38, stdev=191.37 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 131], | 30.00th=[ 131], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 347], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1921, max= 4134, per=42.34%, avg=2504.00, stdev=1087.10, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.02%, sys=4.58%, ctx=82, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180918: Fri Oct 2 10:38:07 2026 read: IOPS=1, BW=1056KiB/s (1081kB/s)(5120KiB/4848msec) clat (msec): min=54, max=1357, avg=560.96, stdev=523.78 lat (msec): min=54, max=1357, avg=560.96, stdev=523.78 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 55], 10.00th=[ 55], 20.00th=[ 55], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 1921, max= 3938, per=62.29%, avg=2631.33, stdev=1133.04, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1479KiB/s (1514kB/s)(7168KiB/4848msec); 0 zone resets clat (msec): min=132, max=784, avg=284.78, stdev=239.01 lat (msec): min=132, max=784, avg=284.94, stdev=238.97 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 133], 10.00th=[ 133], 20.00th=[ 142], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 150], 60.00th=[ 255], | 70.00th=[ 255], 80.00th=[ 388], 90.00th=[ 785], 95.00th=[ 785], | 99.00th=[ 785], 99.50th=[ 785], 99.90th=[ 785], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 1965, max= 6131, per=54.88%, avg=3245.75, stdev=1964.09, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=3.61%, ctx=67, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4224KiB/s (4326kB/s), 428KiB/s-1848KiB/s (439kB/s-1893kB/s), io=20.0MiB (20.0MB), run=3878-4848msec WRITE: bw=5914KiB/s (6056kB/s), 1320KiB/s-2142KiB/s (1352kB/s-2193kB/s), io=28.0MiB (29.4MB), run=3878-4848msec 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=180934: Fri Oct 2 10:38:22 2026 read: IOPS=1, BW=4679KiB/s (4792kB/s)(12.0MiB/2626msec) clat (msec): min=789, max=932, avg=875.03, stdev=75.42 lat (msec): min=789, max=932, avg=875.03, stdev=75.42 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 8143, max= 8159, per=100.00%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=11.66%, ctx=165, 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=180935: Fri Oct 2 10:38:22 2026 read: IOPS=0, BW=1375KiB/s (1408kB/s)(4096KiB/2979msec) clat (nsec): min=791226k, max=791226k, avg=791225747.00, stdev= 0.00 lat (nsec): min=791227k, max=791227k, avg=791226865.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2750KiB/s (2816kB/s)(8192KiB/2979msec); 0 zone resets clat (msec): min=595, max=1590, avg=1093.01, stdev=703.50 lat (msec): min=595, max=1590, avg=1093.36, stdev=703.47 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8159, max= 8159, per=77.42%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.17%, sys=7.82%, ctx=114, 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=180936: Fri Oct 2 10:38:22 2026 write: IOPS=0, BW=3952KiB/s (4047kB/s)(12.0MiB/3109msec); 0 zone resets clat (msec): min=140, max=1493, avg=1035.32, stdev=774.95 lat (msec): min=141, max=1494, avg=1035.86, stdev=774.61 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 142], 40.00th=[ 1469], 50.00th=[ 1469], 60.00th=[ 1469], | 70.00th=[ 1502], 80.00th=[ 1502], 90.00th=[ 1502], 95.00th=[ 1502], | 99.00th=[ 1502], 99.50th=[ 1502], 99.90th=[ 1502], 99.95th=[ 1502], | 99.99th=[ 1502] bw ( KiB/s): min= 8159, max= 8159, per=77.42%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.06%, ctx=38, 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=180937: Fri Oct 2 10:38:22 2026 write: IOPS=1, BW=4721KiB/s (4834kB/s)(12.0MiB/2603msec); 0 zone resets clat (msec): min=416, max=1481, avg=866.48, stdev=551.08 lat (msec): min=417, max=1482, avg=867.18, stdev=551.53 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 8143, max= 8159, per=77.34%, avg=8151.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.73%, ctx=41, 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=5500KiB/s (5632kB/s), 1375KiB/s-4679KiB/s (1408kB/s-4792kB/s), io=16.0MiB (16.8MB), run=2626-2979msec WRITE: bw=10.3MiB/s (10.8MB/s), 2750KiB/s-4721KiB/s (2816kB/s-4834kB/s), io=32.0MiB (33.6MB), run=2603-3109msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180929: Fri Oct 2 10:38:22 2026 read: IOPS=0, BW=3894KiB/s (3987kB/s)(12.0MiB/3156msec) clat (msec): min=839, max=1250, avg=1004.80, stdev=217.08 lat (msec): min=839, max=1250, avg=1004.80, stdev=217.08 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 927], 50.00th=[ 927], 60.00th=[ 927], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=3.65%, ctx=48, 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=180930: Fri Oct 2 10:38:22 2026 read: IOPS=0, BW=1385KiB/s (1418kB/s)(4096KiB/2957msec) clat (nsec): min=387290k, max=387290k, avg=387289843.00, stdev= 0.00 lat (nsec): min=387292k, max=387292k, avg=387292101.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 6041, max= 6041, per=100.00%, avg=6041.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2770KiB/s (2837kB/s)(8192KiB/2957msec); 0 zone resets clat (msec): min=1008, max=1432, avg=1220.42, stdev=299.50 lat (msec): min=1011, max=1432, avg=1221.87, stdev=297.93 clat percentiles (msec): | 1.00th=[ 1011], 5.00th=[ 1011], 10.00th=[ 1011], 20.00th=[ 1011], | 30.00th=[ 1011], 40.00th=[ 1011], 50.00th=[ 1011], 60.00th=[ 1435], | 70.00th=[ 1435], 80.00th=[ 1435], 90.00th=[ 1435], 95.00th=[ 1435], | 99.00th=[ 1435], 99.50th=[ 1435], 99.90th=[ 1435], 99.95th=[ 1435], | 99.99th=[ 1435] bw ( KiB/s): min= 8159, max= 8159, per=87.75%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=6.22%, ctx=66, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=180931: Fri Oct 2 10:38:22 2026 write: IOPS=0, BW=3487KiB/s (3571kB/s)(12.0MiB/3524msec); 0 zone resets clat (msec): min=303, max=1523, avg=1090.38, stdev=682.26 lat (msec): min=304, max=1523, avg=1091.23, stdev=682.66 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 1452], 50.00th=[ 1452], 60.00th=[ 1452], | 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= 7922, max= 8062, per=85.95%, avg=7992.00, stdev=98.99, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=5.42%, ctx=64, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180932: Fri Oct 2 10:38:22 2026 write: IOPS=1, BW=4614KiB/s (4725kB/s)(12.0MiB/2663msec); 0 zone resets clat (msec): min=418, max=1557, avg=819.20, stdev=640.51 lat (msec): min=419, max=1558, avg=820.01, stdev=640.02 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 1552], 80.00th=[ 1552], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7816, max= 8015, per=85.13%, avg=7915.50, stdev=140.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.47%, ctx=59, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5191KiB/s (5316kB/s), 1385KiB/s-3894KiB/s (1418kB/s-3987kB/s), io=16.0MiB (16.8MB), run=2957-3156msec WRITE: bw=9299KiB/s (9522kB/s), 2770KiB/s-4614KiB/s (2837kB/s-4725kB/s), io=32.0MiB (33.6MB), run=2663-3524msec