== sanity test 398b: DIO and buffer IO race ============== 05:34:49 (1768559689) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.97232 s, 10.1 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=146041: Fri Jan 16 05:37:29 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(5992KiB/141264msec) clat (usec): min=104, max=806905, avg=46088.20, stdev=40284.70 lat (usec): min=104, max=806906, avg=46091.82, stdev=40284.13 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 169], 10.00th=[ 297], 20.00th=[ 20841], | 30.00th=[ 27657], 40.00th=[ 32900], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[103285], | 99.00th=[156238], 99.50th=[198181], 99.90th=[480248], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 103, per=25.27%, avg=42.45, stdev=19.63, samples=274 iops : min= 1, max= 25, avg= 9.97, stdev= 4.94, samples=274 write: IOPS=11, BW=44.6KiB/s (45.6kB/s)(6296KiB/141264msec); 0 zone resets clat (usec): min=856, max=622542, avg=45717.37, stdev=50477.51 lat (usec): min=858, max=622544, avg=45720.14, stdev=50477.33 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1205], 10.00th=[ 1450], 20.00th=[ 3982], | 30.00th=[ 8717], 40.00th=[ 20841], 50.00th=[ 34341], 60.00th=[ 46400], | 70.00th=[ 59507], 80.00th=[ 78119], 90.00th=[107480], 95.00th=[135267], | 99.00th=[206570], 99.50th=[261096], 99.90th=[526386], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 7, max= 120, per=25.27%, avg=44.48, stdev=19.02, samples=275 iops : min= 1, max= 30, avg=10.47, stdev= 4.79, samples=275 lat (usec) : 250=4.72%, 500=0.39%, 750=0.13%, 1000=0.13% lat (msec) : 2=7.03%, 4=3.61%, 10=6.05%, 20=7.49%, 50=33.14% lat (msec) : 100=28.42%, 250=8.50%, 500=0.29%, 750=0.07%, 1000=0.03% cpu : usr=0.08%, sys=4.39%, ctx=6287, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146042: Fri Jan 16 05:37:29 2026 read: IOPS=10, BW=41.0KiB/s (42.0kB/s)(5940KiB/141485msec) clat (usec): min=111, max=524243, avg=45645.25, stdev=37657.72 lat (usec): min=111, max=524244, avg=45648.28, stdev=37657.77 clat percentiles (usec): | 1.00th=[ 141], 5.00th=[ 174], 10.00th=[ 685], 20.00th=[ 20841], | 30.00th=[ 27395], 40.00th=[ 32637], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[104334], | 99.00th=[170918], 99.50th=[233833], 99.90th=[396362], 99.95th=[522191], | 99.99th=[522191] bw ( KiB/s): min= 7, max= 95, per=25.13%, avg=42.21, stdev=18.64, samples=273 iops : min= 1, max= 23, avg= 9.91, stdev= 4.69, samples=273 write: IOPS=11, BW=44.9KiB/s (45.9kB/s)(6348KiB/141485msec); 0 zone resets clat (usec): min=953, max=753874, avg=46259.03, stdev=53422.00 lat (usec): min=955, max=753876, avg=46261.74, stdev=53423.62 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1205], 10.00th=[ 1336], 20.00th=[ 4555], | 30.00th=[ 10290], 40.00th=[ 21627], 50.00th=[ 32900], 60.00th=[ 46400], | 70.00th=[ 58983], 80.00th=[ 78119], 90.00th=[108528], 95.00th=[135267], | 99.00th=[198181], 99.50th=[283116], 99.90th=[734004], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 7, max= 127, per=25.23%, avg=44.41, stdev=19.83, samples=277 iops : min= 1, max= 31, avg=10.45, stdev= 4.97, samples=277 lat (usec) : 250=4.13%, 500=0.59%, 750=0.13%, 1000=0.07% lat (msec) : 2=7.03%, 4=2.86%, 10=5.99%, 20=8.14%, 50=35.09% lat (msec) : 100=26.73%, 250=8.79%, 500=0.33%, 750=0.10%, 1000=0.03% cpu : usr=0.08%, sys=4.33%, ctx=6262, 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=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=146043: Fri Jan 16 05:37:29 2026 read: IOPS=10, BW=42.4KiB/s (43.4kB/s)(6028KiB/142194msec) clat (usec): min=116, max=795092, avg=44790.31, stdev=39233.51 lat (usec): min=117, max=795093, avg=44793.83, stdev=39234.26 clat percentiles (usec): | 1.00th=[ 143], 5.00th=[ 174], 10.00th=[ 343], 20.00th=[ 20317], | 30.00th=[ 26870], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 44303], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[149947], 99.50th=[179307], 99.90th=[375391], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 108, per=24.95%, avg=41.92, stdev=20.08, samples=279 iops : min= 1, max= 27, avg= 9.84, stdev= 5.05, samples=279 write: IOPS=11, BW=44.0KiB/s (45.1kB/s)(6260KiB/142194msec); 0 zone resets clat (usec): min=867, max=437663, avg=47573.96, stdev=48928.93 lat (usec): min=868, max=437664, avg=47581.71, stdev=48931.14 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1221], 10.00th=[ 1434], 20.00th=[ 4113], | 30.00th=[ 10421], 40.00th=[ 22676], 50.00th=[ 35914], 60.00th=[ 49021], | 70.00th=[ 64226], 80.00th=[ 80217], 90.00th=[111674], 95.00th=[137364], | 99.00th=[212861], 99.50th=[254804], 99.90th=[358613], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 7, max= 114, per=24.86%, avg=43.76, stdev=18.11, samples=278 iops : min= 1, max= 28, avg=10.30, stdev= 4.56, samples=278 lat (usec) : 250=4.56%, 500=0.55%, 750=0.26%, 1000=0.26% lat (msec) : 2=6.80%, 4=3.65%, 10=5.27%, 20=7.52%, 50=34.11% lat (msec) : 100=26.92%, 250=9.64%, 500=0.42%, 1000=0.03% cpu : usr=0.07%, sys=4.52%, ctx=6404, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146044: Fri Jan 16 05:37:29 2026 read: IOPS=10, BW=43.3KiB/s (44.3kB/s)(6052KiB/139806msec) clat (usec): min=107, max=843212, avg=44135.62, stdev=37592.75 lat (usec): min=107, max=843214, avg=44142.27, stdev=37591.59 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 172], 10.00th=[ 359], 20.00th=[ 20317], | 30.00th=[ 26346], 40.00th=[ 31851], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 54264], 80.00th=[ 67634], 90.00th=[ 83362], 95.00th=[103285], | 99.00th=[143655], 99.50th=[168821], 99.90th=[233833], 99.95th=[843056], | 99.99th=[843056] bw ( KiB/s): min= 6, max= 125, per=25.89%, avg=43.49, stdev=18.90, samples=270 iops : min= 1, max= 31, avg=10.23, stdev= 4.75, samples=270 write: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6236KiB/139806msec); 0 zone resets clat (usec): min=772, max=746792, avg=46681.02, stdev=51804.58 lat (usec): min=772, max=746794, avg=46682.83, stdev=51804.63 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1188], 10.00th=[ 1319], 20.00th=[ 4228], | 30.00th=[ 9634], 40.00th=[ 22938], 50.00th=[ 33817], 60.00th=[ 46400], | 70.00th=[ 60031], 80.00th=[ 79168], 90.00th=[111674], 95.00th=[141558], | 99.00th=[212861], 99.50th=[270533], 99.90th=[425722], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 7, max= 127, per=25.14%, avg=44.24, stdev=19.46, samples=273 iops : min= 1, max= 31, avg=10.42, stdev= 4.90, samples=273 lat (usec) : 250=4.62%, 500=0.52%, 750=0.20%, 1000=0.20% lat (msec) : 2=7.68%, 4=2.60%, 10=5.92%, 20=7.32%, 50=35.12% lat (msec) : 100=26.60%, 250=8.89%, 500=0.26%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=4.52%, ctx=6337, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=169KiB/s (173kB/s), 41.0KiB/s-43.3KiB/s (42.0kB/s-44.3kB/s), io=23.4MiB (24.6MB), run=139806-142194msec WRITE: bw=177KiB/s (181kB/s), 44.0KiB/s-44.9KiB/s (45.1kB/s-45.9kB/s), io=24.6MiB (25.7MB), run=139806-142194msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146037: Fri Jan 16 05:40:33 2026 read: IOPS=4, BW=18.5KiB/s (18.0kB/s)(5992KiB/323084msec) clat (msec): min=5, max=860, avg=39.76, stdev=43.76 lat (msec): min=5, max=860, avg=39.76, stdev=43.76 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 82], 95.00th=[ 114], | 99.00th=[ 197], 99.50th=[ 296], 99.90th=[ 401], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 79, per=30.14%, avg=22.01, stdev=14.48, samples=524 iops : min= 1, max= 19, avg= 4.86, stdev= 3.66, samples=524 write: IOPS=4, BW=19.5KiB/s (19.0kB/s)(6296KiB/323084msec); 0 zone resets clat (msec): min=36, max=578, avg=167.21, stdev=74.34 lat (msec): min=36, max=578, avg=167.22, stdev=74.34 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 74], 10.00th=[ 87], 20.00th=[ 106], | 30.00th=[ 122], 40.00th=[ 138], 50.00th=[ 153], 60.00th=[ 171], | 70.00th=[ 192], 80.00th=[ 220], 90.00th=[ 264], 95.00th=[ 317], | 99.00th=[ 405], 99.50th=[ 422], 99.90th=[ 542], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 7, max= 56, per=24.98%, avg=19.24, stdev= 8.41, samples=625 iops : min= 1, max= 14, avg= 4.17, stdev= 2.16, samples=625 lat (msec) : 10=2.02%, 20=13.74%, 50=22.56%, 100=15.98%, 250=38.87% lat (msec) : 500=6.71%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=0.99%, ctx=5064, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146038: Fri Jan 16 05:40:33 2026 read: IOPS=4, BW=18.3KiB/s (18.7kB/s)(5940KiB/324776msec) clat (msec): min=5, max=857, avg=39.25, stdev=43.83 lat (msec): min=5, max=857, avg=39.25, stdev=43.83 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 83], 95.00th=[ 109], | 99.00th=[ 188], 99.50th=[ 239], 99.90th=[ 506], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 7, max= 87, per=30.26%, avg=22.09, stdev=14.37, samples=517 iops : min= 1, max= 21, avg= 4.90, stdev= 3.61, samples=517 write: IOPS=4, BW=19.5KiB/s (20.0kB/s)(6348KiB/324776msec); 0 zone resets clat (msec): min=32, max=1034, avg=167.74, stdev=78.75 lat (msec): min=32, max=1034, avg=167.74, stdev=78.75 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 77], 10.00th=[ 88], 20.00th=[ 106], | 30.00th=[ 124], 40.00th=[ 138], 50.00th=[ 153], 60.00th=[ 169], | 70.00th=[ 188], 80.00th=[ 222], 90.00th=[ 271], 95.00th=[ 313], | 99.00th=[ 418], 99.50th=[ 493], 99.90th=[ 776], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 56, per=25.22%, avg=19.42, stdev= 8.43, samples=625 iops : min= 1, max= 14, avg= 4.21, stdev= 2.15, samples=625 lat (msec) : 10=1.79%, 20=14.13%, 50=22.27%, 100=16.08%, 250=38.54% lat (msec) : 500=6.90%, 750=0.20%, 1000=0.07%, 2000=0.03% cpu : usr=0.04%, sys=0.94%, ctx=5019, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146039: Fri Jan 16 05:40:33 2026 read: IOPS=4, BW=18.5KiB/s (18.0kB/s)(6028KiB/325581msec) clat (msec): min=5, max=542, avg=41.14, stdev=41.42 lat (msec): min=5, max=542, avg=41.15, stdev=41.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 42], 80.00th=[ 56], 90.00th=[ 86], 95.00th=[ 118], | 99.00th=[ 203], 99.50th=[ 288], 99.90th=[ 401], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 95, per=29.56%, avg=21.58, stdev=14.89, samples=535 iops : min= 1, max= 23, avg= 4.75, stdev= 3.74, samples=535 write: IOPS=4, BW=19.2KiB/s (19.7kB/s)(6260KiB/325581msec); 0 zone resets clat (msec): min=41, max=875, avg=168.20, stdev=77.72 lat (msec): min=41, max=875, avg=168.20, stdev=77.73 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 73], 10.00th=[ 87], 20.00th=[ 108], | 30.00th=[ 123], 40.00th=[ 140], 50.00th=[ 155], 60.00th=[ 171], | 70.00th=[ 192], 80.00th=[ 218], 90.00th=[ 262], 95.00th=[ 309], | 99.00th=[ 418], 99.50th=[ 472], 99.90th=[ 768], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 56, per=24.55%, avg=18.90, stdev= 8.49, samples=631 iops : min= 1, max= 14, avg= 4.09, stdev= 2.18, samples=631 lat (msec) : 10=1.79%, 20=13.54%, 50=22.49%, 100=15.98%, 250=39.45% lat (msec) : 500=6.51%, 750=0.16%, 1000=0.07% cpu : usr=0.04%, sys=0.94%, ctx=4969, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146040: Fri Jan 16 05:40:33 2026 read: IOPS=4, BW=18.7KiB/s (19.2kB/s)(6052KiB/323243msec) clat (msec): min=6, max=513, avg=39.88, stdev=38.54 lat (msec): min=6, max=513, avg=39.88, stdev=38.53 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 56], 90.00th=[ 86], 95.00th=[ 113], | 99.00th=[ 178], 99.50th=[ 226], 99.90th=[ 384], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 7, max= 79, per=30.09%, avg=21.96, stdev=14.48, samples=530 iops : min= 1, max= 19, avg= 4.85, stdev= 3.65, samples=530 write: IOPS=4, BW=19.3KiB/s (19.8kB/s)(6236KiB/323243msec); 0 zone resets clat (msec): min=39, max=1036, avg=168.42, stdev=78.71 lat (msec): min=39, max=1036, avg=168.42, stdev=78.71 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 75], 10.00th=[ 89], 20.00th=[ 108], | 30.00th=[ 123], 40.00th=[ 136], 50.00th=[ 153], 60.00th=[ 171], | 70.00th=[ 192], 80.00th=[ 224], 90.00th=[ 266], 95.00th=[ 305], | 99.00th=[ 418], 99.50th=[ 468], 99.90th=[ 885], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 56, per=24.74%, avg=19.05, stdev= 8.45, samples=626 iops : min= 1, max= 14, avg= 4.12, stdev= 2.16, samples=626 lat (msec) : 10=1.66%, 20=14.29%, 50=22.17%, 100=15.07%, 250=40.20% lat (msec) : 500=6.41%, 750=0.13%, 1000=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.02%, ctx=5238, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=73.8KiB/s (75.5kB/s), 18.3KiB/s-18.7KiB/s (18.7kB/s-19.2kB/s), io=23.4MiB (24.6MB), run=323084-325581msec WRITE: bw=77.2KiB/s (79.1kB/s), 19.2KiB/s-19.5KiB/s (19.7kB/s-20.0kB/s), io=24.6MiB (25.7MB), run=323084-325581msec 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=146109: Fri Jan 16 05:41:19 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(5920KiB/33132msec) clat (usec): min=94, max=262579, avg=48736.33, stdev=41449.03 lat (usec): min=95, max=262580, avg=48737.44, stdev=41449.04 clat percentiles (usec): | 1.00th=[ 121], 5.00th=[ 155], 10.00th=[ 178], 20.00th=[ 5735], | 30.00th=[ 26346], 40.00th=[ 35390], 50.00th=[ 43779], 60.00th=[ 52167], | 70.00th=[ 62653], 80.00th=[ 76022], 90.00th=[ 92799], 95.00th=[121111], | 99.00th=[196084], 99.50th=[252707], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 32, max= 413, per=26.26%, avg=179.61, stdev=78.25, samples=64 iops : min= 2, max= 25, avg=10.45, stdev= 4.89, samples=64 write: IOPS=12, BW=192KiB/s (197kB/s)(6368KiB/33132msec); 0 zone resets clat (usec): min=1283, max=223100, avg=37289.84, stdev=41810.80 lat (usec): min=1285, max=223102, avg=37295.03, stdev=41809.00 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1631], 10.00th=[ 1958], 20.00th=[ 4359], | 30.00th=[ 8291], 40.00th=[ 13698], 50.00th=[ 19792], 60.00th=[ 33162], | 70.00th=[ 46400], 80.00th=[ 66323], 90.00th=[ 95945], 95.00th=[129500], | 99.00th=[196084], 99.50th=[221250], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 31, max= 351, per=26.83%, avg=193.14, stdev=84.18, samples=64 iops : min= 1, max= 21, avg=11.31, stdev= 5.29, samples=64 lat (usec) : 100=0.26%, 250=7.29%, 500=0.65%, 750=0.39% lat (msec) : 2=5.86%, 4=4.56%, 10=8.20%, 20=10.81%, 50=27.21% lat (msec) : 100=25.78%, 250=8.72%, 500=0.26% cpu : usr=0.08%, sys=5.33%, ctx=1451, 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=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=146110: Fri Jan 16 05:41:19 2026 read: IOPS=10, BW=168KiB/s (172kB/s)(5744KiB/34255msec) clat (usec): min=110, max=355750, avg=49939.12, stdev=41076.38 lat (usec): min=110, max=355751, avg=49940.32, stdev=41076.31 clat percentiles (usec): | 1.00th=[ 139], 5.00th=[ 161], 10.00th=[ 208], 20.00th=[ 18220], | 30.00th=[ 29230], 40.00th=[ 35914], 50.00th=[ 44827], 60.00th=[ 54264], | 70.00th=[ 63177], 80.00th=[ 77071], 90.00th=[ 93848], 95.00th=[121111], | 99.00th=[183501], 99.50th=[246416], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 31, max= 377, per=24.67%, avg=168.74, stdev=75.17, samples=66 iops : min= 1, max= 23, avg= 9.77, stdev= 4.73, samples=66 write: IOPS=11, BW=191KiB/s (196kB/s)(6544KiB/34255msec); 0 zone resets clat (usec): min=1384, max=213913, avg=39693.21, stdev=42465.93 lat (usec): min=1384, max=213916, avg=39700.56, stdev=42461.79 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1713], 10.00th=[ 1893], 20.00th=[ 4146], | 30.00th=[ 8291], 40.00th=[ 15008], 50.00th=[ 24773], 60.00th=[ 35914], | 70.00th=[ 50594], 80.00th=[ 68682], 90.00th=[101188], 95.00th=[131597], | 99.00th=[170918], 99.50th=[200279], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 380, per=26.58%, avg=191.38, stdev=81.73, samples=66 iops : min= 1, max= 23, avg=11.21, stdev= 5.16, samples=66 lat (usec) : 250=5.73%, 500=0.91%, 750=0.26% lat (msec) : 2=6.12%, 4=4.95%, 10=8.33%, 20=7.29%, 50=29.04% lat (msec) : 100=27.47%, 250=9.77%, 500=0.13% cpu : usr=0.06%, sys=5.21%, ctx=1393, 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=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=146111: Fri Jan 16 05:41:19 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(6256KiB/34974msec) clat (usec): min=108, max=387580, avg=48745.39, stdev=43729.27 lat (usec): min=109, max=387581, avg=48746.72, stdev=43729.29 clat percentiles (usec): | 1.00th=[ 126], 5.00th=[ 163], 10.00th=[ 186], 20.00th=[ 4359], | 30.00th=[ 26870], 40.00th=[ 33817], 50.00th=[ 43779], 60.00th=[ 51643], | 70.00th=[ 63701], 80.00th=[ 77071], 90.00th=[ 98042], 95.00th=[115868], | 99.00th=[210764], 99.50th=[299893], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 31, max= 414, per=26.17%, avg=178.97, stdev=81.26, samples=68 iops : min= 1, max= 25, avg=10.43, stdev= 5.10, samples=68 write: IOPS=10, BW=172KiB/s (177kB/s)(6032KiB/34974msec); 0 zone resets clat (usec): min=1427, max=245131, avg=41536.15, stdev=45174.05 lat (usec): min=1429, max=245133, avg=41538.10, stdev=45174.06 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1713], 10.00th=[ 1844], 20.00th=[ 5211], | 30.00th=[ 8979], 40.00th=[ 13435], 50.00th=[ 23462], 60.00th=[ 36439], | 70.00th=[ 54789], 80.00th=[ 79168], 90.00th=[110625], 95.00th=[133694], | 99.00th=[193987], 99.50th=[225444], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 60, max= 533, per=23.88%, avg=171.94, stdev=82.78, samples=67 iops : min= 3, max= 33, avg= 9.99, stdev= 5.24, samples=67 lat (usec) : 250=7.81%, 500=1.30%, 750=0.39%, 1000=0.13% lat (msec) : 2=6.64%, 4=2.47%, 10=8.20%, 20=7.94%, 50=27.73% lat (msec) : 100=27.47%, 250=9.64%, 500=0.26% cpu : usr=0.09%, sys=4.83%, ctx=1435, 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=146112: Fri Jan 16 05:41:19 2026 read: IOPS=10, BW=173KiB/s (177kB/s)(6032KiB/34939msec) clat (usec): min=106, max=288593, avg=47415.96, stdev=41160.95 lat (usec): min=106, max=288594, avg=47417.16, stdev=41160.99 clat percentiles (usec): | 1.00th=[ 121], 5.00th=[ 153], 10.00th=[ 176], 20.00th=[ 1483], | 30.00th=[ 30016], 40.00th=[ 35914], 50.00th=[ 42730], 60.00th=[ 51643], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 98042], 95.00th=[116917], | 99.00th=[164627], 99.50th=[283116], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 351, per=24.96%, avg=170.75, stdev=73.70, samples=68 iops : min= 1, max= 21, avg= 9.93, stdev= 4.62, samples=68 write: IOPS=11, BW=179KiB/s (183kB/s)(6256KiB/34939msec); 0 zone resets clat (usec): min=1226, max=360704, avg=43001.20, stdev=48192.03 lat (usec): min=1227, max=360706, avg=43012.84, stdev=48186.01 clat percentiles (usec): | 1.00th=[ 1500], 5.00th=[ 1811], 10.00th=[ 2507], 20.00th=[ 7242], | 30.00th=[ 10945], 40.00th=[ 15926], 50.00th=[ 25822], 60.00th=[ 38011], | 70.00th=[ 51643], 80.00th=[ 72877], 90.00th=[105382], 95.00th=[145753], | 99.00th=[210764], 99.50th=[214959], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 31, max= 446, per=24.73%, avg=178.09, stdev=78.26, samples=68 iops : min= 1, max= 27, avg=10.35, stdev= 4.92, samples=68 lat (usec) : 250=7.42%, 500=1.56%, 750=0.65% lat (msec) : 2=4.69%, 4=2.60%, 10=8.20%, 20=9.51%, 50=29.30% lat (msec) : 100=25.52%, 250=10.03%, 500=0.52% cpu : usr=0.05%, sys=4.71%, ctx=1390, 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=685KiB/s (701kB/s), 168KiB/s-179KiB/s (172kB/s-183kB/s), io=23.4MiB (24.5MB), run=33132-34974msec WRITE: bw=721KiB/s (738kB/s), 172KiB/s-192KiB/s (177kB/s-197kB/s), io=24.6MiB (25.8MB), run=33132-34974msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146114: Fri Jan 16 05:42:10 2026 read: IOPS=4, BW=70.6KiB/s (72.3kB/s)(5920KiB/83860msec) clat (msec): min=5, max=365, avg=41.69, stdev=48.45 lat (msec): min=5, max=365, avg=41.69, stdev=48.45 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 51], 90.00th=[ 92], 95.00th=[ 142], | 99.00th=[ 259], 99.50th=[ 309], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 30, max= 288, per=30.62%, avg=86.66, stdev=53.41, samples=133 iops : min= 1, max= 18, avg= 4.63, stdev= 3.42, samples=133 write: IOPS=4, BW=75.9KiB/s (77.8kB/s)(6368KiB/83860msec); 0 zone resets clat (msec): min=34, max=490, avg=171.71, stdev=82.30 lat (msec): min=34, max=490, avg=171.73, stdev=82.31 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 69], 10.00th=[ 81], 20.00th=[ 104], | 30.00th=[ 121], 40.00th=[ 136], 50.00th=[ 155], 60.00th=[ 176], | 70.00th=[ 201], 80.00th=[ 230], 90.00th=[ 292], 95.00th=[ 334], | 99.00th=[ 414], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 222, per=25.58%, avg=76.21, stdev=37.57, samples=163 iops : min= 1, max= 13, avg= 3.96, stdev= 2.43, samples=163 lat (msec) : 10=2.08%, 20=15.63%, 50=21.22%, 100=14.45%, 250=37.37% lat (msec) : 500=9.24% cpu : usr=0.04%, sys=1.10%, ctx=1385, 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=146115: Fri Jan 16 05:42:10 2026 read: IOPS=4, BW=68.0KiB/s (69.6kB/s)(5744KiB/84463msec) clat (msec): min=6, max=253, avg=39.39, stdev=45.37 lat (msec): min=6, max=253, avg=39.39, stdev=45.37 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 52], 90.00th=[ 90], 95.00th=[ 136], | 99.00th=[ 239], 99.50th=[ 253], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 30, max= 349, per=30.57%, avg=86.51, stdev=62.74, samples=131 iops : min= 1, max= 21, avg= 4.63, stdev= 3.95, samples=131 write: IOPS=4, BW=77.5KiB/s (79.3kB/s)(6544KiB/84463msec); 0 zone resets clat (msec): min=43, max=494, avg=171.63, stdev=86.91 lat (msec): min=43, max=494, avg=171.64, stdev=86.91 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 83], 20.00th=[ 101], | 30.00th=[ 112], 40.00th=[ 131], 50.00th=[ 150], 60.00th=[ 176], | 70.00th=[ 203], 80.00th=[ 241], 90.00th=[ 300], 95.00th=[ 338], | 99.00th=[ 430], 99.50th=[ 464], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 30, max= 288, per=26.51%, avg=78.99, stdev=41.89, samples=163 iops : min= 1, max= 18, avg= 4.14, stdev= 2.73, samples=163 lat (msec) : 10=3.39%, 20=15.49%, 50=19.14%, 100=15.76%, 250=36.59% lat (msec) : 500=9.64% cpu : usr=0.06%, sys=1.10%, ctx=1318, 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=146116: Fri Jan 16 05:42:10 2026 read: IOPS=4, BW=76.9KiB/s (78.7kB/s)(6256KiB/81381msec) clat (msec): min=6, max=463, avg=40.93, stdev=49.52 lat (msec): min=6, max=463, avg=40.93, stdev=49.52 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 31], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 80], 95.00th=[ 121], | 99.00th=[ 279], 99.50th=[ 464], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 30, max= 347, per=32.31%, avg=91.43, stdev=63.61, samples=135 iops : min= 1, max= 21, avg= 4.93, stdev= 4.06, samples=135 write: IOPS=4, BW=74.1KiB/s (75.9kB/s)(6032KiB/81381msec); 0 zone resets clat (msec): min=38, max=608, avg=173.18, stdev=87.72 lat (msec): min=38, max=608, avg=173.18, stdev=87.72 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 69], 10.00th=[ 80], 20.00th=[ 102], | 30.00th=[ 122], 40.00th=[ 140], 50.00th=[ 157], 60.00th=[ 176], | 70.00th=[ 199], 80.00th=[ 228], 90.00th=[ 292], 95.00th=[ 376], | 99.00th=[ 443], 99.50th=[ 493], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 30, max= 222, per=25.97%, avg=77.39, stdev=34.92, samples=152 iops : min= 1, max= 13, avg= 4.05, stdev= 2.28, samples=152 lat (msec) : 10=3.26%, 20=14.32%, 50=22.79%, 100=16.67%, 250=34.90% lat (msec) : 500=7.94%, 750=0.13% cpu : usr=0.03%, sys=1.07%, ctx=1299, 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=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=146118: Fri Jan 16 05:42:10 2026 read: IOPS=4, BW=72.2KiB/s (73.0kB/s)(6032KiB/83506msec) clat (msec): min=5, max=465, avg=41.58, stdev=49.58 lat (msec): min=5, max=465, avg=41.58, stdev=49.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 92], 95.00th=[ 150], | 99.00th=[ 232], 99.50th=[ 359], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 30, max= 413, per=30.37%, avg=85.94, stdev=59.50, samples=137 iops : min= 1, max= 25, avg= 4.59, stdev= 3.81, samples=137 write: IOPS=4, BW=74.9KiB/s (76.7kB/s)(6256KiB/83506msec); 0 zone resets clat (msec): min=33, max=561, avg=173.22, stdev=85.51 lat (msec): min=33, max=561, avg=173.22, stdev=85.51 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 69], 10.00th=[ 88], 20.00th=[ 104], | 30.00th=[ 124], 40.00th=[ 142], 50.00th=[ 155], 60.00th=[ 174], | 70.00th=[ 201], 80.00th=[ 232], 90.00th=[ 288], 95.00th=[ 347], | 99.00th=[ 493], 99.50th=[ 506], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 30, max= 222, per=25.96%, avg=77.36, stdev=37.70, samples=159 iops : min= 1, max= 13, avg= 4.04, stdev= 2.43, samples=159 lat (msec) : 10=3.26%, 20=15.63%, 50=20.05%, 100=14.97%, 250=38.28% lat (msec) : 500=7.42%, 750=0.39% cpu : usr=0.03%, sys=1.02%, ctx=1349, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=284KiB/s (290kB/s), 68.0KiB/s-76.9KiB/s (69.6kB/s-78.7kB/s), io=23.4MiB (24.5MB), run=81381-84463msec WRITE: bw=298KiB/s (306kB/s), 74.1KiB/s-77.5KiB/s (75.9kB/s-79.3kB/s), io=24.6MiB (25.8MB), run=81381-84463msec 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=146136: Fri Jan 16 05:42:25 2026 read: IOPS=1, BW=1866KiB/s (1911kB/s)(7168KiB/3841msec) clat (msec): min=74, max=332, avg=205.54, stdev=91.79 lat (msec): min=74, max=332, avg=205.54, stdev=91.79 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 74], 10.00th=[ 74], 20.00th=[ 93], | 30.00th=[ 220], 40.00th=[ 220], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 264], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 2000, max= 2817, per=58.46%, avg=2184.60, stdev=353.96, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 write: IOPS=1, BW=1333KiB/s (1365kB/s)(5120KiB/3841msec); 0 zone resets clat (msec): min=271, max=685, avg=448.74, stdev=160.81 lat (msec): min=271, max=685, avg=448.89, stdev=160.83 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 2000, max= 3930, per=47.75%, avg=2499.00, stdev=954.16, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=12.06%, ctx=201, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146137: Fri Jan 16 05:42:25 2026 read: IOPS=0, BW=374KiB/s (383kB/s)(2048KiB/5479msec) clat (msec): min=244, max=320, avg=282.53, stdev=54.16 lat (msec): min=244, max=320, avg=282.53, stdev=54.16 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 245], 10.00th=[ 245], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 1471, max= 2000, per=46.44%, avg=1735.50, stdev=374.06, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1869KiB/s (1914kB/s)(10.0MiB/5479msec); 0 zone resets clat (msec): min=82, max=815, avg=480.75, stdev=252.38 lat (msec): min=82, max=815, avg=480.86, stdev=252.38 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 232], | 30.00th=[ 330], 40.00th=[ 368], 50.00th=[ 393], 60.00th=[ 426], | 70.00th=[ 609], 80.00th=[ 760], 90.00th=[ 793], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 1943, max= 4071, per=49.56%, avg=2593.71, stdev=1009.88, samples=7 iops : min= 1, max= 3, avg= 1.71, stdev= 0.95, samples=7 lat (msec) : 100=8.33%, 250=16.67%, 500=41.67%, 750=8.33%, 1000=25.00% cpu : usr=0.00%, sys=9.55%, ctx=177, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146138: Fri Jan 16 05:42:25 2026 read: IOPS=1, BW=1452KiB/s (1487kB/s)(6144KiB/4231msec) clat (msec): min=2, max=409, avg=238.70, stdev=152.02 lat (msec): min=2, max=410, avg=238.81, stdev=152.17 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 197], | 30.00th=[ 197], 40.00th=[ 207], 50.00th=[ 207], 60.00th=[ 213], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 1965, max= 4087, per=90.30%, avg=3374.33, stdev=1220.54, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1452KiB/s (1487kB/s)(6144KiB/4231msec); 0 zone resets clat (msec): min=176, max=1075, avg=455.57, stdev=330.70 lat (msec): min=176, max=1075, avg=455.67, stdev=330.69 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 338], 50.00th=[ 338], 60.00th=[ 338], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1965, max= 2805, per=42.33%, avg=2215.25, stdev=395.00, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 4=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=9.13%, ctx=238, 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=146139: Fri Jan 16 05:42:25 2026 read: IOPS=1, BW=1281KiB/s (1311kB/s)(5120KiB/3998msec) clat (usec): min=447, max=387054, avg=165356.84, stdev=165479.19 lat (usec): min=447, max=387056, avg=165358.09, stdev=165479.46 clat percentiles (usec): | 1.00th=[ 449], 5.00th=[ 449], 10.00th=[ 449], 20.00th=[ 449], | 30.00th=[ 725], 40.00th=[ 725], 50.00th=[208667], 60.00th=[208667], | 70.00th=[231736], 80.00th=[231736], 90.00th=[387974], 95.00th=[387974], | 99.00th=[387974], 99.50th=[387974], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1793KiB/s (1836kB/s)(7168KiB/3998msec); 0 zone resets clat (msec): min=215, max=839, avg=429.68, stdev=260.60 lat (msec): min=215, max=840, avg=429.77, stdev=260.58 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 228], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 321], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 751], 90.00th=[ 844], 95.00th=[ 844], | 99.00th=[ 844], 99.50th=[ 844], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 1484, max= 4096, per=55.49%, avg=2903.75, stdev=1340.85, samples=4 iops : min= 1, max= 4, avg= 2.25, stdev= 1.50, samples=4 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 250=41.67%, 500=25.00%, 1000=16.67% cpu : usr=0.00%, sys=10.58%, ctx=221, 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=3738KiB/s (3828kB/s), 374KiB/s-1866KiB/s (383kB/s-1911kB/s), io=20.0MiB (20.0MB), run=3841-5479msec WRITE: bw=5233KiB/s (5359kB/s), 1333KiB/s-1869KiB/s (1365kB/s-1914kB/s), io=28.0MiB (29.4MB), run=3841-5479msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146141: Fri Jan 16 05:42:26 2026 read: IOPS=1, BW=1467KiB/s (1503kB/s)(7168KiB/4885msec) clat (msec): min=129, max=970, avg=333.07, stdev=296.59 lat (msec): min=129, max=970, avg=333.07, stdev=296.59 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 138], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 236], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 397], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 1815, max= 4063, per=62.43%, avg=2396.60, stdev=936.42, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1048KiB/s (1073kB/s)(5120KiB/4885msec); 0 zone resets clat (msec): min=268, max=916, avg=481.18, stdev=259.62 lat (msec): min=268, max=917, avg=482.26, stdev=258.85 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 2019, max= 4071, per=50.36%, avg=2707.00, stdev=1181.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=50.00%, 1000=16.67% cpu : usr=0.00%, sys=4.48%, ctx=89, 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=146142: Fri Jan 16 05:42:26 2026 read: IOPS=0, BW=384KiB/s (393kB/s)(2048KiB/5334msec) clat (msec): min=201, max=609, avg=405.35, stdev=288.69 lat (msec): min=201, max=609, avg=405.35, stdev=288.69 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 201], | 30.00th=[ 201], 40.00th=[ 201], 50.00th=[ 201], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1709, max= 2035, per=48.76%, avg=1872.00, stdev=230.52, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1920KiB/s (1966kB/s)(10.0MiB/5334msec); 0 zone resets clat (msec): min=242, max=838, avg=433.66, stdev=208.62 lat (msec): min=242, max=842, avg=434.16, stdev=209.44 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 243], 10.00th=[ 243], 20.00th=[ 259], | 30.00th=[ 266], 40.00th=[ 292], 50.00th=[ 338], 60.00th=[ 380], | 70.00th=[ 443], 80.00th=[ 542], 90.00th=[ 735], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2019, max= 4063, per=42.53%, avg=2286.00, stdev=718.05, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=16.67%, 500=50.00%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=5.06%, ctx=94, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=146143: Fri Jan 16 05:42:26 2026 read: IOPS=1, BW=1301KiB/s (1332kB/s)(6144KiB/4724msec) clat (msec): min=144, max=365, avg=215.35, stdev=78.22 lat (msec): min=144, max=365, avg=215.35, stdev=78.22 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 182], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 228], 80.00th=[ 228], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 2031, max= 4087, per=66.37%, avg=2548.00, stdev=1026.01, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1301KiB/s (1332kB/s)(6144KiB/4724msec); 0 zone resets clat (msec): min=142, max=1397, avg=540.58, stdev=480.68 lat (msec): min=142, max=1397, avg=540.72, stdev=480.67 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 279], 50.00th=[ 279], 60.00th=[ 372], | 70.00th=[ 810], 80.00th=[ 810], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1732, max= 2039, per=36.88%, avg=1982.50, stdev=122.94, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 250=58.33%, 500=25.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.04%, sys=3.87%, ctx=84, 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=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=146144: Fri Jan 16 05:42:26 2026 read: IOPS=0, BW=989KiB/s (1013kB/s)(5120KiB/5176msec) clat (msec): min=117, max=497, avg=222.75, stdev=158.57 lat (msec): min=117, max=497, avg=222.75, stdev=158.57 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 146], 60.00th=[ 146], | 70.00th=[ 220], 80.00th=[ 220], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 4071, max= 4079, per=100.00%, avg=4075.00, stdev= 5.66, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1385KiB/s (1418kB/s)(7168KiB/5176msec); 0 zone resets clat (msec): min=200, max=1118, avg=554.76, stdev=289.02 lat (msec): min=200, max=1118, avg=554.86, stdev=289.02 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 426], | 30.00th=[ 430], 40.00th=[ 430], 50.00th=[ 489], 60.00th=[ 527], | 70.00th=[ 527], 80.00th=[ 701], 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= 2019, max= 4055, per=44.09%, avg=2369.67, stdev=825.68, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.01%, ctx=88, 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=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=3840KiB/s (3932kB/s), 384KiB/s-1467KiB/s (393kB/s-1503kB/s), io=20.0MiB (20.0MB), run=4724-5334msec WRITE: bw=5375KiB/s (5504kB/s), 1048KiB/s-1920KiB/s (1073kB/s-1966kB/s), io=28.0MiB (29.4MB), run=4724-5334msec 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=146152: Fri Jan 16 05:42:42 2026 read: IOPS=0, BW=2093KiB/s (2143kB/s)(12.0MiB/5872msec) clat (msec): min=830, max=4054, avg=1926.79, stdev=1843.05 lat (msec): min=830, max=4054, avg=1926.80, stdev=1843.05 clat percentiles (msec): | 1.00th=[ 835], 5.00th=[ 835], 10.00th=[ 835], 20.00th=[ 835], | 30.00th=[ 835], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 4044], 80.00th=[ 4044], 90.00th=[ 4044], 95.00th=[ 4044], | 99.00th=[ 4044], 99.50th=[ 4044], 99.90th=[ 4044], 99.95th=[ 4044], | 99.99th=[ 4044] bw ( KiB/s): min= 8047, max= 8062, per=100.00%, avg=8054.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=6.18%, ctx=661, 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=146153: Fri Jan 16 05:42:42 2026 read: IOPS=0, BW=712KiB/s (729kB/s)(4096KiB/5756msec) clat (nsec): min=4165.0M, max=4165.0M, avg=4165021642.00, stdev= 0.00 lat (nsec): min=4165.0M, max=4165.0M, avg=4165024515.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4178], 5.00th=[ 4178], 10.00th=[ 4178], 20.00th=[ 4178], | 30.00th=[ 4178], 40.00th=[ 4178], 50.00th=[ 4178], 60.00th=[ 4178], | 70.00th=[ 4178], 80.00th=[ 4178], 90.00th=[ 4178], 95.00th=[ 4178], | 99.00th=[ 4178], 99.50th=[ 4178], 99.90th=[ 4178], 99.95th=[ 4178], | 99.99th=[ 4178] 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=1423KiB/s (1457kB/s)(8192KiB/5756msec); 0 zone resets clat (msec): min=368, max=1134, avg=751.46, stdev=541.46 lat (msec): min=368, max=1134, avg=751.91, stdev=541.52 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 1133], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.31%, ctx=478, 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=146154: Fri Jan 16 05:42:42 2026 write: IOPS=2, BW=9950KiB/s (10.2MB/s)(12.0MiB/1235msec); 0 zone resets clat (msec): min=344, max=451, avg=397.81, stdev=53.47 lat (msec): min=345, max=454, avg=399.06, stdev=54.74 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 347], 10.00th=[ 347], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7037, max= 8015, per=100.00%, avg=7526.00, stdev=691.55, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=100.00% cpu : usr=0.00%, sys=9.00%, ctx=44, 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=146155: Fri Jan 16 05:42:42 2026 write: IOPS=0, BW=2229KiB/s (2282kB/s)(12.0MiB/5514msec); 0 zone resets clat (msec): min=319, max=4353, avg=1802.89, stdev=2218.58 lat (msec): min=320, max=4353, avg=1803.61, stdev=2218.26 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 321], | 30.00th=[ 321], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 4329], 80.00th=[ 4329], 90.00th=[ 4329], 95.00th=[ 4329], | 99.00th=[ 4329], 99.50th=[ 4329], 99.90th=[ 4329], 99.95th=[ 4329], | 99.99th=[ 4329] bw ( KiB/s): min= 8000, max= 8192, per=100.00%, avg=8096.00, stdev=135.76, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.92%, 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=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=2790KiB/s (2857kB/s), 712KiB/s-2093KiB/s (729kB/s-2143kB/s), io=16.0MiB (16.8MB), run=5756-5872msec WRITE: bw=5693KiB/s (5829kB/s), 1423KiB/s-9950KiB/s (1457kB/s-10.2MB/s), io=32.0MiB (33.6MB), run=1235-5756msec rand-rw: (groupid=0, jobs=1): err= 0: pid=146156: Fri Jan 16 05:42:43 2026 read: IOPS=0, BW=2031KiB/s (2080kB/s)(12.0MiB/6049msec) clat (msec): min=190, max=4639, avg=1934.51, stdev=2375.05 lat (msec): min=190, max=4639, avg=1934.51, stdev=2375.05 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 978], 50.00th=[ 978], 60.00th=[ 978], | 70.00th=[ 4665], 80.00th=[ 4665], 90.00th=[ 4665], 95.00th=[ 4665], | 99.00th=[ 4665], 99.50th=[ 4665], 99.90th=[ 4665], 99.95th=[ 4665], | 99.99th=[ 4665] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.34%, ctx=60, 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=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=146157: Fri Jan 16 05:42:43 2026 read: IOPS=0, BW=622KiB/s (637kB/s)(4096KiB/6581msec) clat (nsec): min=4472.4M, max=4472.4M, avg=4472397028.00, stdev= 0.00 lat (nsec): min=4472.4M, max=4472.4M, avg=4472399185.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4463], 5.00th=[ 4463], 10.00th=[ 4463], 20.00th=[ 4463], | 30.00th=[ 4463], 40.00th=[ 4463], 50.00th=[ 4463], 60.00th=[ 4463], | 70.00th=[ 4463], 80.00th=[ 4463], 90.00th=[ 4463], 95.00th=[ 4463], | 99.00th=[ 4463], 99.50th=[ 4463], 99.90th=[ 4463], 99.95th=[ 4463], | 99.99th=[ 4463] bw ( KiB/s): min= 7656, max= 7656, per=100.00%, avg=7656.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1245KiB/s (1275kB/s)(8192KiB/6581msec); 0 zone resets clat (msec): min=372, max=1574, avg=973.49, stdev=849.40 lat (msec): min=382, max=1575, avg=979.13, stdev=843.92 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 1569], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.22%, ctx=57, 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=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=146158: Fri Jan 16 05:42:43 2026 write: IOPS=0, BW=1727KiB/s (1769kB/s)(12.0MiB/7114msec); 0 zone resets clat (msec): min=856, max=4371, avg=2330.86, stdev=1825.08 lat (msec): min=856, max=4374, avg=2332.19, stdev=1825.91 clat percentiles (msec): | 1.00th=[ 860], 5.00th=[ 860], 10.00th=[ 860], 20.00th=[ 860], | 30.00th=[ 860], 40.00th=[ 1770], 50.00th=[ 1770], 60.00th=[ 1770], | 70.00th=[ 4396], 80.00th=[ 4396], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 7656, max= 8094, per=100.00%, avg=7875.00, stdev=309.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.43%, ctx=91, 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=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=146159: Fri Jan 16 05:42:43 2026 write: IOPS=0, BW=2166KiB/s (2218kB/s)(12.0MiB/5673msec); 0 zone resets clat (msec): min=301, max=4366, avg=1769.49, stdev=2255.49 lat (msec): min=302, max=4366, avg=1769.94, stdev=2255.46 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 642], | 70.00th=[ 4396], 80.00th=[ 4396], 90.00th=[ 4396], 95.00th=[ 4396], | 99.00th=[ 4396], 99.50th=[ 4396], 99.90th=[ 4396], 99.95th=[ 4396], | 99.99th=[ 4396] bw ( KiB/s): min= 5876, max= 8110, per=100.00%, avg=6993.00, stdev=1579.68, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.34%, ctx=47, 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=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=2490KiB/s (2549kB/s), 622KiB/s-2031KiB/s (637kB/s-2080kB/s), io=16.0MiB (16.8MB), run=6049-6581msec WRITE: bw=4606KiB/s (4717kB/s), 1245KiB/s-2166KiB/s (1275kB/s-2218kB/s), io=32.0MiB (33.6MB), run=5673-7114msec