== sanity test 398b: DIO and buffer IO race ============== 03:49:19 (1788940159) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.23996 s, 9.6 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=144671: Wed Sep 9 03:52:14 2026 read: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5992KiB/156934msec) clat (usec): min=31, max=880155, avg=49307.44, stdev=47240.48 lat (usec): min=31, max=880158, avg=49311.14, stdev=47239.49 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 18220], | 30.00th=[ 24773], 40.00th=[ 31851], 50.00th=[ 39060], 60.00th=[ 47973], | 70.00th=[ 60556], 80.00th=[ 76022], 90.00th=[104334], 95.00th=[126354], | 99.00th=[200279], 99.50th=[244319], 99.90th=[308282], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 103, per=25.34%, avg=38.51, stdev=19.39, samples=301 iops : min= 1, max= 25, avg= 8.98, stdev= 4.89, samples=301 write: IOPS=10, BW=40.1KiB/s (41.1kB/s)(6296KiB/156934msec); 0 zone resets clat (usec): min=744, max=439428, avg=52528.82, stdev=57567.11 lat (usec): min=745, max=439430, avg=52530.61, stdev=57567.17 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1123], 10.00th=[ 1254], 20.00th=[ 4113], | 30.00th=[ 9765], 40.00th=[ 23200], 50.00th=[ 36963], 60.00th=[ 50594], | 70.00th=[ 66847], 80.00th=[ 89654], 90.00th=[128451], 95.00th=[162530], | 99.00th=[270533], 99.50th=[299893], 99.90th=[392168], 99.95th=[438305], | 99.99th=[438305] bw ( KiB/s): min= 7, max= 125, per=25.45%, avg=40.47, stdev=19.97, samples=301 iops : min= 1, max= 31, avg= 9.48, stdev= 5.03, samples=301 lat (usec) : 50=1.07%, 100=5.14%, 250=0.36%, 500=0.20%, 750=0.10% lat (usec) : 1000=0.42% lat (msec) : 2=7.10%, 4=2.70%, 10=5.70%, 20=8.17%, 50=29.82% lat (msec) : 100=25.29%, 250=13.05%, 500=0.85%, 1000=0.03% cpu : usr=0.07%, sys=3.99%, ctx=6088, 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=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=144672: Wed Sep 9 03:52:14 2026 read: IOPS=9, BW=38.1KiB/s (39.0kB/s)(5940KiB/155810msec) clat (usec): min=31, max=782355, avg=49609.25, stdev=43904.83 lat (usec): min=31, max=782357, avg=49614.07, stdev=43908.27 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 18744], | 30.00th=[ 26608], 40.00th=[ 33162], 50.00th=[ 40633], 60.00th=[ 48497], | 70.00th=[ 62129], 80.00th=[ 78119], 90.00th=[102237], 95.00th=[125305], | 99.00th=[179307], 99.50th=[196084], 99.90th=[278922], 99.95th=[784335], | 99.99th=[784335] bw ( KiB/s): min= 6, max= 127, per=25.33%, avg=38.50, stdev=19.71, samples=299 iops : min= 1, max= 31, avg= 8.98, stdev= 4.96, samples=299 write: IOPS=10, BW=40.7KiB/s (41.7kB/s)(6348KiB/155810msec); 0 zone resets clat (usec): min=747, max=868829, avg=51555.95, stdev=59703.68 lat (usec): min=748, max=868831, avg=51560.74, stdev=59703.32 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1139], 10.00th=[ 1237], 20.00th=[ 3654], | 30.00th=[ 8979], 40.00th=[ 21365], 50.00th=[ 36439], 60.00th=[ 50070], | 70.00th=[ 66847], 80.00th=[ 87557], 90.00th=[122160], 95.00th=[156238], | 99.00th=[261096], 99.50th=[308282], 99.90th=[557843], 99.95th=[868221], | 99.99th=[868221] bw ( KiB/s): min= 7, max= 149, per=25.67%, avg=40.81, stdev=22.05, samples=301 iops : min= 1, max= 37, avg= 9.56, stdev= 5.54, samples=301 lat (usec) : 50=1.01%, 100=5.34%, 250=0.42%, 750=0.03%, 1000=0.33% lat (msec) : 2=7.55%, 4=3.09%, 10=5.21%, 20=7.16%, 50=30.08% lat (msec) : 100=26.50%, 250=12.63%, 500=0.55%, 750=0.03%, 1000=0.07% cpu : usr=0.06%, sys=3.94%, ctx=5973, majf=0, minf=19 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=144673: Wed Sep 9 03:52:14 2026 read: IOPS=9, BW=39.2KiB/s (40.2kB/s)(6028KiB/153666msec) clat (usec): min=30, max=336901, avg=47578.32, stdev=41325.27 lat (usec): min=30, max=336903, avg=47581.96, stdev=41324.85 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 18744], | 30.00th=[ 25822], 40.00th=[ 32113], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 55837], 80.00th=[ 70779], 90.00th=[100140], 95.00th=[124257], | 99.00th=[196084], 99.50th=[263193], 99.90th=[299893], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 6, max= 135, per=26.30%, avg=39.97, stdev=20.80, samples=293 iops : min= 1, max= 33, avg= 9.35, stdev= 5.24, samples=293 write: IOPS=10, BW=40.7KiB/s (41.7kB/s)(6260KiB/153666msec); 0 zone resets clat (usec): min=745, max=848502, avg=52153.12, stdev=64594.00 lat (usec): min=746, max=848504, avg=52156.67, stdev=64593.18 clat percentiles (usec): | 1.00th=[ 988], 5.00th=[ 1106], 10.00th=[ 1221], 20.00th=[ 3687], | 30.00th=[ 8356], 40.00th=[ 19006], 50.00th=[ 34341], 60.00th=[ 50070], | 70.00th=[ 65274], 80.00th=[ 87557], 90.00th=[125305], 95.00th=[162530], | 99.00th=[274727], 99.50th=[362808], 99.90th=[608175], 99.95th=[851444], | 99.99th=[851444] bw ( KiB/s): min= 7, max= 128, per=25.47%, avg=40.50, stdev=21.14, samples=300 iops : min= 1, max= 32, avg= 9.49, stdev= 5.34, samples=300 lat (usec) : 50=1.27%, 100=4.92%, 250=0.26%, 500=0.07%, 750=0.07% lat (usec) : 1000=0.49% lat (msec) : 2=7.68%, 4=2.51%, 10=6.22%, 20=7.75%, 50=30.79% lat (msec) : 100=25.39%, 250=11.56%, 500=0.91%, 750=0.10%, 1000=0.03% cpu : usr=0.06%, sys=4.15%, ctx=5939, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144674: Wed Sep 9 03:52:14 2026 read: IOPS=9, BW=38.4KiB/s (39.3kB/s)(6052KiB/157656msec) clat (usec): min=27, max=539989, avg=49452.81, stdev=45280.76 lat (usec): min=28, max=539990, avg=49454.34, stdev=45280.69 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 17695], | 30.00th=[ 25822], 40.00th=[ 32900], 50.00th=[ 40633], 60.00th=[ 49021], | 70.00th=[ 60031], 80.00th=[ 77071], 90.00th=[101188], 95.00th=[126354], | 99.00th=[193987], 99.50th=[208667], 99.90th=[534774], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 7, max= 160, per=25.32%, avg=38.49, stdev=21.11, samples=305 iops : min= 1, max= 40, avg= 8.98, stdev= 5.34, samples=305 write: IOPS=9, BW=39.6KiB/s (40.5kB/s)(6236KiB/157656msec); 0 zone resets clat (usec): min=705, max=826755, avg=52827.91, stdev=60703.52 lat (usec): min=706, max=826758, avg=52833.17, stdev=60703.28 clat percentiles (usec): | 1.00th=[ 1020], 5.00th=[ 1123], 10.00th=[ 1303], 20.00th=[ 4359], | 30.00th=[ 9503], 40.00th=[ 20579], 50.00th=[ 35914], 60.00th=[ 52691], | 70.00th=[ 68682], 80.00th=[ 91751], 90.00th=[128451], 95.00th=[164627], | 99.00th=[238027], 99.50th=[278922], 99.90th=[624952], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 128, per=24.96%, avg=39.69, stdev=20.70, samples=305 iops : min= 1, max= 32, avg= 9.27, stdev= 5.21, samples=305 lat (usec) : 50=1.40%, 100=5.01%, 250=0.29%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.26% lat (msec) : 2=6.51%, 4=3.06%, 10=6.18%, 20=8.11%, 50=28.68% lat (msec) : 100=26.76%, 250=12.92%, 500=0.46%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=4.02%, ctx=6080, majf=0, minf=19 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=152KiB/s (156kB/s), 38.1KiB/s-39.2KiB/s (39.0kB/s-40.2kB/s), io=23.4MiB (24.6MB), run=153666-157656msec WRITE: bw=159KiB/s (163kB/s), 39.6KiB/s-40.7KiB/s (40.5kB/s-41.7kB/s), io=24.6MiB (25.7MB), run=153666-157656msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144666: Wed Sep 9 03:55:03 2026 read: IOPS=4, BW=18.4KiB/s (18.9kB/s)(5992KiB/324950msec) clat (msec): min=3, max=886, avg=43.44, stdev=50.39 lat (msec): min=3, max=886, avg=43.44, stdev=50.40 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 33], | 70.00th=[ 43], 80.00th=[ 61], 90.00th=[ 97], 95.00th=[ 133], | 99.00th=[ 222], 99.50th=[ 275], 99.90th=[ 489], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 87, per=30.40%, avg=22.19, stdev=16.22, samples=519 iops : min= 1, max= 21, avg= 4.91, stdev= 4.09, samples=519 write: IOPS=4, BW=19.4KiB/s (19.8kB/s)(6296KiB/324950msec); 0 zone resets clat (msec): min=28, max=932, avg=164.87, stdev=96.96 lat (msec): min=28, max=932, avg=164.88, stdev=96.96 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 89], | 30.00th=[ 105], 40.00th=[ 121], 50.00th=[ 140], 60.00th=[ 159], | 70.00th=[ 186], 80.00th=[ 228], 90.00th=[ 296], 95.00th=[ 355], | 99.00th=[ 477], 99.50th=[ 584], 99.90th=[ 827], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 55, per=25.51%, avg=19.39, stdev=10.28, samples=621 iops : min= 1, max= 13, avg= 4.20, stdev= 2.62, samples=621 lat (msec) : 4=0.03%, 10=3.84%, 20=12.50%, 50=20.54%, 100=20.96% lat (msec) : 250=33.37%, 500=8.30%, 750=0.33%, 1000=0.13% cpu : usr=0.03%, sys=0.93%, ctx=5179, 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=144667: Wed Sep 9 03:55:03 2026 read: IOPS=4, BW=18.1KiB/s (18.6kB/s)(5940KiB/327307msec) clat (msec): min=5, max=766, avg=44.12, stdev=52.28 lat (msec): min=5, max=766, avg=44.12, stdev=52.28 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 100], 95.00th=[ 132], | 99.00th=[ 245], 99.50th=[ 338], 99.90th=[ 489], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 87, per=29.96%, avg=21.87, stdev=15.65, samples=521 iops : min= 1, max= 21, avg= 4.83, stdev= 3.95, samples=521 write: IOPS=4, BW=19.4KiB/s (19.9kB/s)(6348KiB/327307msec); 0 zone resets clat (msec): min=33, max=886, avg=164.74, stdev=91.30 lat (msec): min=33, max=886, avg=164.74, stdev=91.30 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 75], 20.00th=[ 93], | 30.00th=[ 107], 40.00th=[ 125], 50.00th=[ 142], 60.00th=[ 163], | 70.00th=[ 190], 80.00th=[ 226], 90.00th=[ 288], 95.00th=[ 347], | 99.00th=[ 451], 99.50th=[ 498], 99.90th=[ 793], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 55, per=25.66%, avg=19.50, stdev=10.29, samples=622 iops : min= 1, max= 13, avg= 4.23, stdev= 2.63, samples=622 lat (msec) : 10=3.26%, 20=12.79%, 50=20.77%, 100=19.73%, 250=34.96% lat (msec) : 500=8.24%, 750=0.16%, 1000=0.10% cpu : usr=0.03%, sys=0.89%, ctx=5147, 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=144668: Wed Sep 9 03:55:03 2026 read: IOPS=4, BW=18.7KiB/s (19.1kB/s)(6028KiB/322815msec) clat (msec): min=5, max=436, avg=45.48, stdev=46.33 lat (msec): min=5, max=436, avg=45.48, stdev=46.33 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 213], 99.50th=[ 275], 99.90th=[ 414], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 7, max= 87, per=29.51%, avg=21.54, stdev=15.63, samples=537 iops : min= 1, max= 21, avg= 4.75, stdev= 3.95, samples=537 write: IOPS=4, BW=19.4KiB/s (19.9kB/s)(6260KiB/322815msec); 0 zone resets clat (msec): min=28, max=901, avg=162.22, stdev=92.32 lat (msec): min=28, max=901, avg=162.23, stdev=92.32 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 63], 10.00th=[ 74], 20.00th=[ 92], | 30.00th=[ 106], 40.00th=[ 118], 50.00th=[ 136], 60.00th=[ 157], | 70.00th=[ 184], 80.00th=[ 226], 90.00th=[ 292], 95.00th=[ 342], | 99.00th=[ 447], 99.50th=[ 502], 99.90th=[ 835], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 63, per=25.57%, avg=19.43, stdev=10.41, samples=615 iops : min= 1, max= 15, avg= 4.21, stdev= 2.67, samples=615 lat (msec) : 10=3.26%, 20=11.36%, 50=21.74%, 100=20.93%, 250=34.08% lat (msec) : 500=8.37%, 750=0.20%, 1000=0.07% cpu : usr=0.03%, sys=0.93%, ctx=5279, 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=144669: Wed Sep 9 03:55:03 2026 read: IOPS=4, BW=18.8KiB/s (19.3kB/s)(6052KiB/321906msec) clat (msec): min=5, max=488, avg=43.40, stdev=45.16 lat (msec): min=5, max=488, avg=43.40, stdev=45.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 35], | 70.00th=[ 43], 80.00th=[ 59], 90.00th=[ 97], 95.00th=[ 140], | 99.00th=[ 213], 99.50th=[ 243], 99.90th=[ 443], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 87, per=30.70%, avg=22.41, stdev=16.16, samples=519 iops : min= 1, max= 21, avg= 4.97, stdev= 4.09, samples=519 write: IOPS=4, BW=19.4KiB/s (19.8kB/s)(6236KiB/321906msec); 0 zone resets clat (msec): min=31, max=900, avg=164.14, stdev=93.45 lat (msec): min=31, max=900, avg=164.14, stdev=93.45 clat percentiles (msec): | 1.00th=[ 51], 5.00th=[ 64], 10.00th=[ 77], 20.00th=[ 93], | 30.00th=[ 108], 40.00th=[ 124], 50.00th=[ 140], 60.00th=[ 161], | 70.00th=[ 188], 80.00th=[ 226], 90.00th=[ 284], 95.00th=[ 347], | 99.00th=[ 477], 99.50th=[ 510], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 56, per=25.30%, avg=19.23, stdev=10.10, samples=620 iops : min= 1, max= 14, avg= 4.16, stdev= 2.59, samples=620 lat (msec) : 10=3.12%, 20=12.53%, 50=21.97%, 100=19.89%, 250=34.86% lat (msec) : 500=7.26%, 750=0.23%, 1000=0.13% cpu : usr=0.04%, sys=0.92%, ctx=5097, 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=73.4KiB/s (75.1kB/s), 18.1KiB/s-18.8KiB/s (18.6kB/s-19.3kB/s), io=23.4MiB (24.6MB), run=321906-327307msec WRITE: bw=76.8KiB/s (78.7kB/s), 19.4KiB/s-19.4KiB/s (19.8kB/s-19.9kB/s), io=24.6MiB (25.7MB), run=321906-327307msec 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=144737: Wed Sep 9 03:55:43 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(5920KiB/29293msec) clat (usec): min=24, max=403763, avg=38607.15, stdev=40320.53 lat (usec): min=24, max=403765, avg=38608.34, stdev=40320.56 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 50], 10.00th=[ 57], 20.00th=[ 69], | 30.00th=[ 2507], 40.00th=[ 26346], 50.00th=[ 33424], 60.00th=[ 42730], | 70.00th=[ 52691], 80.00th=[ 63177], 90.00th=[ 80217], 95.00th=[102237], | 99.00th=[154141], 99.50th=[223347], 99.90th=[404751], 99.95th=[404751], | 99.99th=[404751] bw ( KiB/s): min= 31, max= 448, per=25.51%, avg=208.18, stdev=95.85, samples=55 iops : min= 1, max= 28, avg=12.29, stdev= 6.08, samples=55 write: IOPS=13, BW=217KiB/s (223kB/s)(6368KiB/29293msec); 0 zone resets clat (usec): min=1399, max=328547, avg=34941.20, stdev=39407.17 lat (usec): min=1401, max=328549, avg=34943.16, stdev=39407.20 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1598], 10.00th=[ 1827], 20.00th=[ 3556], | 30.00th=[ 6521], 40.00th=[ 11600], 50.00th=[ 21627], 60.00th=[ 34866], | 70.00th=[ 45351], 80.00th=[ 58983], 90.00th=[ 87557], 95.00th=[107480], | 99.00th=[173016], 99.50th=[185598], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 30, max= 512, per=26.75%, avg=229.76, stdev=115.86, samples=54 iops : min= 1, max= 32, avg=13.65, stdev= 7.32, samples=54 lat (usec) : 50=2.47%, 100=10.42%, 250=0.91%, 750=0.26% lat (msec) : 2=6.51%, 4=4.95%, 10=8.20%, 20=8.20%, 50=28.78% lat (msec) : 100=23.44%, 250=5.60%, 500=0.26% cpu : usr=0.06%, sys=4.56%, ctx=1278, 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=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=144738: Wed Sep 9 03:55:43 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(5744KiB/29323msec) clat (usec): min=36, max=442050, avg=42903.48, stdev=45725.36 lat (usec): min=36, max=442053, avg=42904.68, stdev=45725.41 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 100], | 30.00th=[ 20579], 40.00th=[ 28705], 50.00th=[ 35390], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 68682], 90.00th=[ 86508], 95.00th=[100140], | 99.00th=[219153], 99.50th=[429917], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 31, max= 512, per=24.31%, avg=198.36, stdev=97.28, samples=56 iops : min= 1, max= 32, avg=11.66, stdev= 6.17, samples=56 write: IOPS=13, BW=223KiB/s (229kB/s)(6544KiB/29323msec); 0 zone resets clat (usec): min=1387, max=204596, avg=32859.89, stdev=35479.21 lat (usec): min=1389, max=204599, avg=32868.01, stdev=35475.08 clat percentiles (usec): | 1.00th=[ 1483], 5.00th=[ 1647], 10.00th=[ 2180], 20.00th=[ 4752], | 30.00th=[ 7504], 40.00th=[ 12125], 50.00th=[ 21365], 60.00th=[ 30278], | 70.00th=[ 42206], 80.00th=[ 56886], 90.00th=[ 79168], 95.00th=[105382], | 99.00th=[160433], 99.50th=[185598], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 60, max= 507, per=26.23%, avg=225.32, stdev=103.64, samples=56 iops : min= 3, max= 31, avg=13.38, stdev= 6.54, samples=56 lat (usec) : 50=1.56%, 100=7.81%, 250=0.26%, 500=0.39% lat (msec) : 2=5.34%, 4=3.78%, 10=10.81%, 20=9.38%, 50=31.38% lat (msec) : 100=24.35%, 250=4.69%, 500=0.26% cpu : usr=0.09%, sys=5.05%, ctx=1344, 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=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=144739: Wed Sep 9 03:55:43 2026 read: IOPS=13, BW=218KiB/s (223kB/s)(6256KiB/28759msec) clat (usec): min=33, max=518209, avg=40927.04, stdev=43569.17 lat (usec): min=33, max=518210, avg=40928.25, stdev=43569.19 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 83], | 30.00th=[ 20841], 40.00th=[ 27132], 50.00th=[ 35390], 60.00th=[ 43254], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 86508], 95.00th=[101188], | 99.00th=[193987], 99.50th=[229639], 99.90th=[517997], 99.95th=[517997], | 99.99th=[517997] bw ( KiB/s): min= 60, max= 476, per=27.41%, avg=223.64, stdev=108.26, samples=55 iops : min= 3, max= 29, avg=13.27, stdev= 6.85, samples=55 write: IOPS=13, BW=210KiB/s (215kB/s)(6032KiB/28759msec); 0 zone resets clat (usec): min=1296, max=183639, avg=33436.19, stdev=34751.21 lat (usec): min=1298, max=183641, avg=33438.35, stdev=34751.29 clat percentiles (usec): | 1.00th=[ 1450], 5.00th=[ 1631], 10.00th=[ 1827], 20.00th=[ 3621], | 30.00th=[ 7373], 40.00th=[ 13042], 50.00th=[ 24511], 60.00th=[ 34341], | 70.00th=[ 42730], 80.00th=[ 57410], 90.00th=[ 80217], 95.00th=[102237], | 99.00th=[162530], 99.50th=[181404], 99.90th=[183501], 99.95th=[183501], | 99.99th=[183501] bw ( KiB/s): min= 31, max= 574, per=24.31%, avg=208.84, stdev=104.99, samples=56 iops : min= 1, max= 35, avg=12.34, stdev= 6.60, samples=56 lat (usec) : 50=1.95%, 100=8.85%, 250=0.13%, 750=0.26%, 1000=0.13% lat (msec) : 2=6.64%, 4=4.56%, 10=6.77%, 20=9.11%, 50=32.42% lat (msec) : 100=23.83%, 250=5.21%, 750=0.13% cpu : usr=0.06%, sys=4.83%, ctx=1359, 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=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=144740: Wed Sep 9 03:55:43 2026 read: IOPS=13, BW=216KiB/s (221kB/s)(6032KiB/27932msec) clat (usec): min=34, max=260986, avg=37012.96, stdev=37721.83 lat (usec): min=34, max=260986, avg=37014.19, stdev=37721.81 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 49], 10.00th=[ 58], 20.00th=[ 69], | 30.00th=[ 12387], 40.00th=[ 26870], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 47973], 80.00th=[ 58983], 90.00th=[ 78119], 95.00th=[101188], | 99.00th=[206570], 99.50th=[223347], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 63, max= 534, per=27.94%, avg=228.00, stdev=101.13, samples=52 iops : min= 3, max= 33, avg=13.56, stdev= 6.38, samples=52 write: IOPS=13, BW=224KiB/s (229kB/s)(6256KiB/27932msec); 0 zone resets clat (usec): min=1070, max=300976, avg=33312.35, stdev=41149.89 lat (usec): min=1073, max=300978, avg=33324.66, stdev=41142.51 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1647], 10.00th=[ 1827], 20.00th=[ 3818], | 30.00th=[ 6259], 40.00th=[ 9503], 50.00th=[ 16909], 60.00th=[ 29492], | 70.00th=[ 42206], 80.00th=[ 56361], 90.00th=[ 81265], 95.00th=[108528], | 99.00th=[198181], 99.50th=[295699], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 531, per=27.07%, avg=232.51, stdev=106.65, samples=53 iops : min= 1, max= 33, avg=13.85, stdev= 6.78, samples=53 lat (usec) : 50=2.47%, 100=11.20%, 250=0.39%, 500=0.26%, 750=0.13% lat (msec) : 2=5.73%, 4=5.21%, 10=10.42%, 20=7.42%, 50=29.95% lat (msec) : 100=21.35%, 250=5.08%, 500=0.39% cpu : usr=0.08%, sys=4.75%, ctx=1259, 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=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=817KiB/s (836kB/s), 196KiB/s-218KiB/s (201kB/s-223kB/s), io=23.4MiB (24.5MB), run=27932-29323msec WRITE: bw=859KiB/s (880kB/s), 210KiB/s-224KiB/s (215kB/s-229kB/s), io=24.6MiB (25.8MB), run=27932-29323msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144733: Wed Sep 9 03:56:31 2026 read: IOPS=4, BW=76.7KiB/s (78.5kB/s)(5920KiB/77228msec) clat (msec): min=6, max=353, avg=37.82, stdev=35.42 lat (msec): min=6, max=353, avg=37.82, stdev=35.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 48], 90.00th=[ 79], 95.00th=[ 104], | 99.00th=[ 171], 99.50th=[ 275], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 31, max= 255, per=28.13%, avg=87.19, stdev=59.34, samples=134 iops : min= 1, max= 15, avg= 4.65, stdev= 3.74, samples=134 write: IOPS=5, BW=82.5KiB/s (84.4kB/s)(6368KiB/77228msec); 0 zone resets clat (msec): min=48, max=496, avg=156.34, stdev=72.60 lat (msec): min=48, max=496, avg=156.36, stdev=72.61 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 68], 10.00th=[ 83], 20.00th=[ 94], | 30.00th=[ 111], 40.00th=[ 127], 50.00th=[ 142], 60.00th=[ 161], | 70.00th=[ 182], 80.00th=[ 209], 90.00th=[ 249], 95.00th=[ 288], | 99.00th=[ 405], 99.50th=[ 468], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 30, max= 187, per=25.78%, avg=84.05, stdev=37.10, samples=149 iops : min= 1, max= 11, avg= 4.46, stdev= 2.38, samples=149 lat (msec) : 10=1.43%, 20=13.15%, 50=24.74%, 100=17.84%, 250=37.63% lat (msec) : 500=5.21% cpu : usr=0.03%, sys=1.09%, ctx=1251, 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=144734: Wed Sep 9 03:56:31 2026 read: IOPS=4, BW=74.4KiB/s (76.2kB/s)(5744KiB/77233msec) clat (msec): min=6, max=303, avg=39.53, stdev=39.42 lat (msec): min=6, max=303, avg=39.54, stdev=39.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 40], 80.00th=[ 53], 90.00th=[ 83], 95.00th=[ 133], | 99.00th=[ 194], 99.50th=[ 249], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 31, max= 320, per=29.06%, avg=90.09, stdev=59.86, samples=126 iops : min= 1, max= 20, avg= 4.84, stdev= 3.79, samples=126 write: IOPS=5, BW=84.7KiB/s (86.8kB/s)(6544KiB/77233msec); 0 zone resets clat (msec): min=37, max=448, avg=151.50, stdev=71.31 lat (msec): min=37, max=448, avg=151.50, stdev=71.31 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 71], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 110], 40.00th=[ 122], 50.00th=[ 134], 60.00th=[ 148], | 70.00th=[ 171], 80.00th=[ 197], 90.00th=[ 251], 95.00th=[ 305], | 99.00th=[ 376], 99.50th=[ 443], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 31, max= 191, per=26.34%, avg=85.86, stdev=36.80, samples=150 iops : min= 1, max= 11, avg= 4.57, stdev= 2.38, samples=150 lat (msec) : 10=1.69%, 20=15.23%, 50=20.18%, 100=17.45%, 250=39.97% lat (msec) : 500=5.47% cpu : usr=0.04%, sys=1.03%, ctx=1273, 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=144735: Wed Sep 9 03:56:31 2026 read: IOPS=5, BW=82.5KiB/s (84.5kB/s)(6256KiB/75835msec) clat (msec): min=7, max=237, avg=39.04, stdev=34.03 lat (msec): min=7, max=237, avg=39.05, stdev=34.03 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 33], | 70.00th=[ 42], 80.00th=[ 51], 90.00th=[ 73], 95.00th=[ 115], | 99.00th=[ 174], 99.50th=[ 232], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 30, max= 286, per=30.90%, avg=95.78, stdev=64.13, samples=129 iops : min= 1, max= 17, avg= 5.20, stdev= 4.13, samples=129 write: IOPS=4, BW=79.5KiB/s (81.5kB/s)(6032KiB/75835msec); 0 zone resets clat (msec): min=43, max=553, avg=157.97, stdev=75.62 lat (msec): min=43, max=553, avg=157.98, stdev=75.62 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 75], 10.00th=[ 84], 20.00th=[ 99], | 30.00th=[ 111], 40.00th=[ 126], 50.00th=[ 142], 60.00th=[ 159], | 70.00th=[ 180], 80.00th=[ 205], 90.00th=[ 249], 95.00th=[ 313], | 99.00th=[ 447], 99.50th=[ 550], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 30, max= 192, per=25.15%, avg=81.99, stdev=35.01, samples=144 iops : min= 1, max= 12, avg= 4.33, stdev= 2.26, samples=144 lat (msec) : 10=1.04%, 20=13.02%, 50=26.82%, 100=17.45%, 250=36.98% lat (msec) : 500=4.43%, 750=0.26% cpu : usr=0.03%, sys=1.07%, ctx=1213, 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=144736: Wed Sep 9 03:56:31 2026 read: IOPS=4, BW=78.9KiB/s (80.8kB/s)(6032KiB/76485msec) clat (msec): min=6, max=303, avg=38.21, stdev=36.91 lat (msec): min=6, max=303, avg=38.22, stdev=36.91 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 73], 95.00th=[ 121], | 99.00th=[ 192], 99.50th=[ 253], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 30, max= 320, per=29.76%, avg=92.27, stdev=58.96, samples=127 iops : min= 1, max= 20, avg= 4.95, stdev= 3.75, samples=127 write: IOPS=5, BW=81.8KiB/s (83.8kB/s)(6256KiB/76485msec); 0 zone resets clat (msec): min=43, max=675, avg=158.55, stdev=77.61 lat (msec): min=43, max=675, avg=158.55, stdev=77.61 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 72], 10.00th=[ 86], 20.00th=[ 100], | 30.00th=[ 112], 40.00th=[ 125], 50.00th=[ 140], 60.00th=[ 155], | 70.00th=[ 176], 80.00th=[ 205], 90.00th=[ 257], 95.00th=[ 309], | 99.00th=[ 430], 99.50th=[ 558], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 31, max= 160, per=25.19%, avg=82.13, stdev=36.06, samples=149 iops : min= 1, max= 10, avg= 4.34, stdev= 2.35, samples=149 lat (msec) : 10=1.30%, 20=14.97%, 50=23.44%, 100=16.67%, 250=37.63% lat (msec) : 500=5.73%, 750=0.26% cpu : usr=0.05%, sys=1.03%, ctx=1262, 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=310KiB/s (318kB/s), 74.4KiB/s-82.5KiB/s (76.2kB/s-84.5kB/s), io=23.4MiB (24.5MB), run=75835-77233msec WRITE: bw=326KiB/s (334kB/s), 79.5KiB/s-84.7KiB/s (81.5kB/s-86.8kB/s), io=24.6MiB (25.8MB), run=75835-77233msec 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=144763: Wed Sep 9 03:56:44 2026 read: IOPS=2, BW=2170KiB/s (2222kB/s)(7168KiB/3303msec) clat (msec): min=186, max=451, avg=282.76, stdev=94.90 lat (msec): min=186, max=451, avg=282.76, stdev=94.90 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 201], | 30.00th=[ 209], 40.00th=[ 209], 50.00th=[ 284], 60.00th=[ 309], | 70.00th=[ 309], 80.00th=[ 342], 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= 1805, max= 4023, per=43.94%, avg=2388.20, stdev=919.43, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1550KiB/s (1587kB/s)(5120KiB/3303msec); 0 zone resets clat (msec): min=154, max=363, avg=263.90, stdev=79.06 lat (msec): min=154, max=363, avg=263.98, stdev=79.06 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 155], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 279], 60.00th=[ 279], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 2031, max= 3968, per=33.12%, avg=2520.25, stdev=965.18, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=41.67%, 500=58.33% cpu : usr=0.00%, sys=17.60%, ctx=229, 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=144764: Wed Sep 9 03:56:44 2026 read: IOPS=0, BW=544KiB/s (557kB/s)(2048KiB/3768msec) clat (msec): min=120, max=212, avg=166.73, stdev=65.18 lat (msec): min=120, max=212, avg=166.73, stdev=65.19 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 122], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 122], 60.00th=[ 213], | 70.00th=[ 213], 80.00th=[ 213], 90.00th=[ 213], 95.00th=[ 213], | 99.00th=[ 213], 99.50th=[ 213], 99.90th=[ 213], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 1729, max= 1984, per=34.16%, avg=1856.50, stdev=180.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2718KiB/s (2783kB/s)(10.0MiB/3768msec); 0 zone resets clat (msec): min=149, max=891, avg=343.08, stdev=222.90 lat (msec): min=149, max=891, avg=343.17, stdev=222.90 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 159], | 30.00th=[ 215], 40.00th=[ 218], 50.00th=[ 232], 60.00th=[ 296], | 70.00th=[ 372], 80.00th=[ 418], 90.00th=[ 489], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1729, max= 4087, per=39.16%, avg=2979.50, stdev=1152.43, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=58.33%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=11.76%, ctx=289, 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=144765: Wed Sep 9 03:56:44 2026 read: IOPS=1, BW=1657KiB/s (1697kB/s)(6144KiB/3708msec) clat (usec): min=447, max=322654, avg=148180.98, stdev=135090.23 lat (usec): min=448, max=322654, avg=148182.32, stdev=135089.89 clat percentiles (usec): | 1.00th=[ 449], 5.00th=[ 449], 10.00th=[ 449], 20.00th=[ 474], | 30.00th=[ 474], 40.00th=[117965], 50.00th=[117965], 60.00th=[175113], | 70.00th=[274727], 80.00th=[274727], 90.00th=[320865], 95.00th=[320865], | 99.00th=[320865], 99.50th=[320865], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 1984, max= 4063, per=46.61%, avg=2533.25, stdev=1020.21, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1657KiB/s (1697kB/s)(6144KiB/3708msec); 0 zone resets clat (msec): min=219, max=1135, avg=467.74, stdev=338.37 lat (msec): min=219, max=1135, avg=467.81, stdev=338.37 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 220], 10.00th=[ 220], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 368], | 70.00th=[ 464], 80.00th=[ 464], 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= 1984, max= 2043, per=26.58%, avg=2022.40, stdev=25.14, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 500=16.67% lat (msec) : 250=25.00%, 500=50.00%, 2000=8.33% cpu : usr=0.00%, sys=11.01%, ctx=163, 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=144766: Wed Sep 9 03:56:44 2026 read: IOPS=1, BW=1460KiB/s (1495kB/s)(5120KiB/3507msec) clat (usec): min=343, max=395282, avg=131266.13, stdev=183749.14 lat (usec): min=344, max=395283, avg=131267.15, stdev=183749.27 clat percentiles (usec): | 1.00th=[ 343], 5.00th=[ 343], 10.00th=[ 343], 20.00th=[ 343], | 30.00th=[ 461], 40.00th=[ 461], 50.00th=[ 5407], 60.00th=[ 5407], | 70.00th=[254804], 80.00th=[254804], 90.00th=[396362], 95.00th=[396362], | 99.00th=[396362], 99.50th=[396362], 99.90th=[396362], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=2044KiB/s (2093kB/s)(7168KiB/3507msec); 0 zone resets clat (msec): min=67, max=949, avg=406.93, stdev=305.20 lat (msec): min=67, max=949, avg=407.02, stdev=305.20 clat percentiles (msec): | 1.00th=[ 68], 5.00th=[ 68], 10.00th=[ 68], 20.00th=[ 163], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 435], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 535], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1418, max= 4079, per=32.98%, avg=2509.33, stdev=1393.50, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=16.67% lat (msec) : 10=8.33%, 100=8.33%, 250=16.67%, 500=25.00%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.00%, sys=9.56%, ctx=83, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5435KiB/s (5566kB/s), 544KiB/s-2170KiB/s (557kB/s-2222kB/s), io=20.0MiB (20.0MB), run=3303-3768msec WRITE: bw=7609KiB/s (7792kB/s), 1550KiB/s-2718KiB/s (1587kB/s-2783kB/s), io=28.0MiB (29.4MB), run=3303-3768msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144758: Wed Sep 9 03:56:44 2026 read: IOPS=2, BW=2289KiB/s (2344kB/s)(7168KiB/3131msec) clat (msec): min=104, max=563, avg=210.37, stdev=161.77 lat (msec): min=104, max=563, avg=210.37, stdev=161.77 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 115], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 153], | 70.00th=[ 153], 80.00th=[ 243], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 2015, max= 4296, per=74.54%, avg=3429.00, stdev=1234.97, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1635KiB/s (1675kB/s)(5120KiB/3131msec); 0 zone resets clat (msec): min=229, max=425, avg=329.27, stdev=87.02 lat (msec): min=229, max=425, avg=329.99, stdev=87.30 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 230], 10.00th=[ 230], 20.00th=[ 230], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 1988, max= 3744, per=37.79%, avg=2433.75, stdev=873.59, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=66.67%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=4.31%, ctx=57, 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=144759: Wed Sep 9 03:56:44 2026 read: IOPS=0, BW=460KiB/s (471kB/s)(2048KiB/4452msec) clat (msec): min=80, max=256, avg=168.89, stdev=124.60 lat (msec): min=80, max=256, avg=168.89, stdev=124.60 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 82], 50.00th=[ 82], 60.00th=[ 257], | 70.00th=[ 257], 80.00th=[ 257], 90.00th=[ 257], 95.00th=[ 257], | 99.00th=[ 257], 99.50th=[ 257], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 1376, max= 2019, per=36.90%, avg=1697.50, stdev=454.67, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2300KiB/s (2355kB/s)(10.0MiB/4452msec); 0 zone resets clat (msec): min=118, max=1789, avg=402.30, stdev=496.97 lat (msec): min=119, max=1789, avg=402.40, stdev=496.97 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 161], | 30.00th=[ 192], 40.00th=[ 197], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 321], 80.00th=[ 397], 90.00th=[ 405], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 2019, max= 6107, per=52.43%, avg=3376.20, stdev=1722.57, samples=5 iops : min= 1, max= 5, avg= 2.40, stdev= 1.67, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=3.08%, ctx=54, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144760: Wed Sep 9 03:56:44 2026 read: IOPS=1, BW=1590KiB/s (1629kB/s)(6144KiB/3863msec) clat (msec): min=82, max=610, avg=265.63, stdev=196.16 lat (msec): min=82, max=610, avg=265.63, stdev=196.16 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 113], | 30.00th=[ 113], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 257], | 70.00th=[ 355], 80.00th=[ 355], 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= 1872, max= 2027, per=43.13%, avg=1984.20, stdev=64.41, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1590KiB/s (1629kB/s)(6144KiB/3863msec); 0 zone resets clat (msec): min=165, max=681, avg=363.58, stdev=175.21 lat (msec): min=165, max=681, avg=363.67, stdev=175.21 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 288], | 30.00th=[ 288], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 338], | 70.00th=[ 414], 80.00th=[ 414], 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= 1398, max= 4055, per=35.10%, avg=2260.20, stdev=1032.42, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=3.34%, ctx=84, 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=144761: Wed Sep 9 03:56:44 2026 read: IOPS=1, BW=1386KiB/s (1419kB/s)(5120KiB/3695msec) clat (msec): min=106, max=327, avg=218.32, stdev=101.43 lat (msec): min=106, max=327, avg=218.32, stdev=101.43 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 220], 60.00th=[ 220], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 326], 95.00th=[ 326], | 99.00th=[ 326], 99.50th=[ 326], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 3744, max= 3976, per=83.91%, avg=3860.00, stdev=164.05, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1940KiB/s (1986kB/s)(7168KiB/3695msec); 0 zone resets clat (msec): min=204, max=759, avg=365.88, stdev=209.50 lat (msec): min=204, max=759, avg=366.16, stdev=209.37 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 207], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 236], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 502], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1484, max= 5965, per=48.99%, avg=3154.67, stdev=2448.26, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (msec) : 250=58.33%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=3.74%, ctx=60, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4600KiB/s (4711kB/s), 460KiB/s-2289KiB/s (471kB/s-2344kB/s), io=20.0MiB (20.0MB), run=3131-4452msec WRITE: bw=6440KiB/s (6595kB/s), 1590KiB/s-2300KiB/s (1629kB/s-2355kB/s), io=28.0MiB (29.4MB), run=3131-4452msec 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=144774: Wed Sep 9 03:56:58 2026 read: IOPS=0, BW=4003KiB/s (4099kB/s)(12.0MiB/3070msec) clat (msec): min=728, max=1535, avg=1008.70, stdev=456.85 lat (msec): min=728, max=1535, avg=1008.70, stdev=456.85 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.23%, ctx=43, 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=144775: Wed Sep 9 03:56:58 2026 read: IOPS=0, BW=2296KiB/s (2351kB/s)(4096KiB/1784msec) clat (nsec): min=175802k, max=175802k, avg=175801948.00, stdev= 0.00 lat (nsec): min=175805k, max=175805k, avg=175804743.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 176], 90.00th=[ 176], 95.00th=[ 176], | 99.00th=[ 176], 99.50th=[ 176], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 5610, max= 5610, per=100.00%, avg=5610.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4592KiB/s (4702kB/s)(8192KiB/1784msec); 0 zone resets clat (msec): min=549, max=932, avg=741.21, stdev=270.58 lat (msec): min=550, max=933, avg=742.07, stdev=271.17 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 936], | 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= 8110, max= 8110, per=58.48%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=6.28%, ctx=57, 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=144776: Wed Sep 9 03:56:58 2026 write: IOPS=1, BW=6318KiB/s (6469kB/s)(12.0MiB/1945msec); 0 zone resets clat (msec): min=374, max=1014, avg=624.19, stdev=342.78 lat (msec): min=374, max=1015, avg=624.60, stdev=342.76 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 485], 50.00th=[ 485], 60.00th=[ 485], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 6050, max= 8143, per=51.18%, avg=7096.50, stdev=1479.97, 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=0.05%, sys=6.89%, ctx=58, 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=144777: Wed Sep 9 03:56:58 2026 write: IOPS=1, BW=5200KiB/s (5325kB/s)(12.0MiB/2363msec); 0 zone resets clat (msec): min=296, max=1440, avg=743.03, stdev=611.87 lat (msec): min=296, max=1442, avg=743.91, stdev=612.62 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 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= 5565, max= 8110, per=49.31%, avg=6837.50, stdev=1799.59, 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=6.27%, ctx=72, 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=5337KiB/s (5465kB/s), 2296KiB/s-4003KiB/s (2351kB/s-4099kB/s), io=16.0MiB (16.8MB), run=1784-3070msec WRITE: bw=13.5MiB/s (14.2MB/s), 4592KiB/s-6318KiB/s (4702kB/s-6469kB/s), io=32.0MiB (33.6MB), run=1784-2363msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144779: Wed Sep 9 03:56:58 2026 read: IOPS=1, BW=5593KiB/s (5727kB/s)(12.0MiB/2197msec) clat (msec): min=626, max=794, avg=731.41, stdev=91.16 lat (msec): min=626, max=794, avg=731.41, stdev=91.16 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 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= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=16.26%, ctx=346, 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=144780: Wed Sep 9 03:56:58 2026 read: IOPS=0, BW=1751KiB/s (1793kB/s)(4096KiB/2339msec) clat (nsec): min=727202k, max=727202k, avg=727202359.00, stdev= 0.00 lat (nsec): min=727205k, max=727205k, avg=727205482.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 726], 5.00th=[ 726], 10.00th=[ 726], 20.00th=[ 726], | 30.00th=[ 726], 40.00th=[ 726], 50.00th=[ 726], 60.00th=[ 726], | 70.00th=[ 726], 80.00th=[ 726], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3502KiB/s (3586kB/s)(8192KiB/2339msec); 0 zone resets clat (msec): min=596, max=1011, avg=803.89, stdev=293.60 lat (msec): min=596, max=1011, avg=804.35, stdev=293.47 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 1011], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 8110, max= 8110, per=67.97%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 2000=33.33% cpu : usr=0.00%, sys=4.70%, ctx=113, 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=144781: Wed Sep 9 03:56:58 2026 write: IOPS=1, BW=4604KiB/s (4714kB/s)(12.0MiB/2669msec); 0 zone resets clat (msec): min=455, max=1538, avg=887.81, stdev=573.62 lat (msec): min=455, max=1540, avg=889.23, stdev=574.53 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 456], 10.00th=[ 456], 20.00th=[ 456], | 30.00th=[ 456], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 8110, max= 8126, per=68.04%, avg=8118.00, 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=5.36%, ctx=58, 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=144782: Wed Sep 9 03:56:58 2026 write: IOPS=1, BW=4475KiB/s (4582kB/s)(12.0MiB/2746msec); 0 zone resets clat (msec): min=215, max=2030, avg=914.26, stdev=976.62 lat (msec): min=216, max=2031, avg=915.07, stdev=977.32 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7529, max= 8175, per=65.81%, avg=7852.00, stdev=456.79, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.36%, ctx=36, 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=7005KiB/s (7173kB/s), 1751KiB/s-5593KiB/s (1793kB/s-5727kB/s), io=16.0MiB (16.8MB), run=2197-2339msec WRITE: bw=11.7MiB/s (12.2MB/s), 3502KiB/s-4604KiB/s (3586kB/s-4714kB/s), io=32.0MiB (33.6MB), run=2339-2746msec