== sanity test 398b: DIO and buffer IO race ============== 05:50:33 (1788688233) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.96389 s, 8.4 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145576: Sun Sep 6 05:53:15 2026 read: IOPS=10, BW=41.9KiB/s (42.9kB/s)(5992KiB/143045msec) clat (usec): min=35, max=334301, avg=45863.80, stdev=34862.94 lat (usec): min=35, max=334301, avg=45869.59, stdev=34861.01 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 9896], 20.00th=[ 21627], | 30.00th=[ 27395], 40.00th=[ 32900], 50.00th=[ 38536], 60.00th=[ 46400], | 70.00th=[ 55313], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[175113], 99.50th=[219153], 99.90th=[270533], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 95, per=24.97%, avg=41.70, stdev=17.83, samples=278 iops : min= 1, max= 23, avg= 9.75, stdev= 4.49, samples=278 write: IOPS=11, BW=44.0KiB/s (45.1kB/s)(6296KiB/143045msec); 0 zone resets clat (usec): min=1045, max=906481, avg=46908.28, stdev=53699.69 lat (usec): min=1046, max=906483, avg=46912.25, stdev=53698.50 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1385], 10.00th=[ 2212], 20.00th=[ 4621], | 30.00th=[ 9503], 40.00th=[ 21627], 50.00th=[ 34866], 60.00th=[ 46924], | 70.00th=[ 58983], 80.00th=[ 78119], 90.00th=[110625], 95.00th=[137364], | 99.00th=[214959], 99.50th=[278922], 99.90th=[413139], 99.95th=[910164], | 99.99th=[910164] bw ( KiB/s): min= 7, max= 151, per=25.01%, avg=43.77, stdev=19.98, samples=279 iops : min= 1, max= 37, avg=10.27, stdev= 5.01, samples=279 lat (usec) : 50=0.26%, 100=3.84%, 250=0.36%, 500=0.07%, 750=0.07% lat (msec) : 2=4.65%, 4=4.65%, 10=6.67%, 20=7.68%, 50=35.16% lat (msec) : 100=27.25%, 250=8.85%, 500=0.46%, 1000=0.03% cpu : usr=0.09%, sys=5.09%, ctx=6743, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145577: Sun Sep 6 05:53:15 2026 read: IOPS=10, BW=42.1KiB/s (43.1kB/s)(5940KiB/141170msec) clat (usec): min=33, max=961871, avg=46039.49, stdev=45466.36 lat (usec): min=33, max=961874, avg=46042.85, stdev=45465.48 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 101], 20.00th=[ 20841], | 30.00th=[ 26084], 40.00th=[ 31589], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 55313], 80.00th=[ 68682], 90.00th=[ 88605], 95.00th=[107480], | 99.00th=[162530], 99.50th=[181404], 99.90th=[750781], 99.95th=[960496], | 99.99th=[960496] bw ( KiB/s): min= 7, max= 110, per=25.17%, avg=42.03, stdev=20.00, samples=274 iops : min= 1, max= 27, avg= 9.83, stdev= 5.01, samples=274 write: IOPS=11, BW=44.0KiB/s (46.0kB/s)(6348KiB/141170msec); 0 zone resets clat (usec): min=1057, max=304540, avg=45547.09, stdev=45655.39 lat (usec): min=1059, max=304543, avg=45550.90, stdev=45656.30 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1385], 10.00th=[ 2311], 20.00th=[ 5604], | 30.00th=[ 10159], 40.00th=[ 22414], 50.00th=[ 34341], 60.00th=[ 45876], | 70.00th=[ 59507], 80.00th=[ 77071], 90.00th=[105382], 95.00th=[139461], | 99.00th=[196084], 99.50th=[217056], 99.90th=[278922], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 7, max= 110, per=25.62%, avg=44.84, stdev=19.11, samples=274 iops : min= 1, max= 27, avg=10.53, stdev= 4.81, samples=274 lat (usec) : 50=0.36%, 100=4.43%, 250=0.46%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=4.65%, 4=3.68%, 10=7.45%, 20=7.65%, 50=35.38% lat (msec) : 100=26.37%, 250=9.18%, 500=0.20%, 1000=0.07% cpu : usr=0.09%, sys=5.07%, ctx=6630, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145578: Sun Sep 6 05:53:15 2026 read: IOPS=10, BW=42.4KiB/s (43.5kB/s)(6028KiB/142021msec) clat (usec): min=34, max=465390, avg=44677.28, stdev=35051.10 lat (usec): min=35, max=465392, avg=44680.32, stdev=35051.79 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 67], 10.00th=[ 11338], 20.00th=[ 20579], | 30.00th=[ 26084], 40.00th=[ 31589], 50.00th=[ 37487], 60.00th=[ 43779], | 70.00th=[ 53740], 80.00th=[ 66323], 90.00th=[ 87557], 95.00th=[103285], | 99.00th=[164627], 99.50th=[214959], 99.90th=[265290], 99.95th=[463471], | 99.99th=[463471] bw ( KiB/s): min= 7, max= 127, per=25.65%, avg=42.84, stdev=20.15, samples=273 iops : min= 1, max= 31, avg=10.04, stdev= 5.05, samples=273 write: IOPS=11, BW=44.1KiB/s (45.1kB/s)(6260KiB/142021msec); 0 zone resets clat (usec): min=1024, max=1215.9k, avg=47417.53, stdev=54823.14 lat (usec): min=1026, max=1215.9k, avg=47421.74, stdev=54827.28 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1401], 10.00th=[ 2442], | 20.00th=[ 5735], 30.00th=[ 11076], 40.00th=[ 23987], | 50.00th=[ 36439], 60.00th=[ 47973], 70.00th=[ 61604], | 80.00th=[ 80217], 90.00th=[ 106431], 95.00th=[ 132645], | 99.00th=[ 202376], 99.50th=[ 258999], 99.90th=[ 408945], | 99.95th=[1216349], 99.99th=[1216349] bw ( KiB/s): min= 7, max= 110, per=25.31%, avg=44.29, stdev=19.12, samples=274 iops : min= 1, max= 27, avg=10.40, stdev= 4.82, samples=274 lat (usec) : 50=0.46%, 100=3.32%, 250=0.36%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.17%, 4=3.97%, 10=6.71%, 20=8.98%, 50=35.84% lat (msec) : 100=27.18%, 250=8.46%, 500=0.29%, 2000=0.03% cpu : usr=0.09%, sys=5.08%, ctx=6745, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145579: Sun Sep 6 05:53:15 2026 read: IOPS=10, BW=43.5KiB/s (44.5kB/s)(6052KiB/139229msec) clat (usec): min=33, max=766585, avg=44275.96, stdev=37390.78 lat (usec): min=33, max=766588, avg=44281.09, stdev=37390.19 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 196], 20.00th=[ 19792], | 30.00th=[ 26084], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 54264], 80.00th=[ 66847], 90.00th=[ 87557], 95.00th=[105382], | 99.00th=[143655], 99.50th=[160433], 99.90th=[267387], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 7, max= 103, per=26.58%, avg=44.39, stdev=19.00, samples=266 iops : min= 1, max= 25, avg=10.43, stdev= 4.81, samples=266 write: IOPS=11, BW=44.8KiB/s (45.9kB/s)(6236KiB/139229msec); 0 zone resets clat (usec): min=987, max=1021.3k, avg=45958.05, stdev=54775.81 lat (usec): min=989, max=1021.3k, avg=45963.61, stdev=54776.49 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 2073], | 20.00th=[ 4621], 30.00th=[ 8979], 40.00th=[ 19006], | 50.00th=[ 33162], 60.00th=[ 44303], 70.00th=[ 59507], | 80.00th=[ 80217], 90.00th=[ 109577], 95.00th=[ 137364], | 99.00th=[ 217056], 99.50th=[ 270533], 99.90th=[ 541066], | 99.95th=[1019216], 99.99th=[1019216] bw ( KiB/s): min= 7, max= 151, per=25.53%, avg=44.67, stdev=20.92, samples=272 iops : min= 1, max= 37, avg=10.49, stdev= 5.26, samples=272 lat (usec) : 50=0.59%, 100=3.97%, 250=0.42%, 500=0.20%, 750=0.10% lat (usec) : 1000=0.10% lat (msec) : 2=4.92%, 4=4.13%, 10=7.13%, 20=9.21%, 50=34.51% lat (msec) : 100=25.20%, 250=9.18%, 500=0.26%, 750=0.03%, 1000=0.03% lat (msec) : 2000=0.03% cpu : usr=0.08%, sys=5.04%, ctx=6560, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=168KiB/s (172kB/s), 41.9KiB/s-43.5KiB/s (42.9kB/s-44.5kB/s), io=23.4MiB (24.6MB), run=139229-143045msec WRITE: bw=176KiB/s (180kB/s), 44.0KiB/s-44.0KiB/s (45.1kB/s-46.0kB/s), io=24.6MiB (25.7MB), run=139229-143045msec fio: pid=145572, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=145571: Sun Sep 6 05:55:29 2026 read: IOPS=5, BW=21.7KiB/s (22.2kB/s)(5992KiB/276039msec) clat (msec): min=5, max=962, avg=38.72, stdev=46.62 lat (msec): min=5, max=962, avg=38.72, stdev=46.62 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 52], 90.00th=[ 83], 95.00th=[ 110], | 99.00th=[ 199], 99.50th=[ 268], 99.90th=[ 443], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 102, per=34.17%, avg=25.29, stdev=17.19, samples=458 iops : min= 1, max= 25, avg= 5.67, stdev= 4.32, samples=459 write: IOPS=5, BW=22.8KiB/s (23.4kB/s)(6296KiB/276039msec); 0 zone resets clat (msec): min=44, max=764, avg=138.21, stdev=80.48 lat (msec): min=44, max=764, avg=138.21, stdev=80.49 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 80], | 30.00th=[ 88], 40.00th=[ 100], 50.00th=[ 112], 60.00th=[ 128], | 70.00th=[ 153], 80.00th=[ 190], 90.00th=[ 249], 95.00th=[ 305], | 99.00th=[ 422], 99.50th=[ 460], 99.90th=[ 651], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 55, per=29.16%, avg=22.74, stdev=11.70, samples=533 iops : min= 1, max= 13, avg= 5.04, stdev= 2.97, samples=533 lat (msec) : 10=2.60%, 20=15.36%, 50=20.70%, 100=27.93%, 250=28.09% lat (msec) : 500=5.18%, 750=0.07%, 1000=0.07% cpu : usr=0.05%, sys=1.27%, ctx=5789, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145572: Sun Sep 6 05:55:29 2026 read: IOPS=3, BW=15.3KiB/s (15.7kB/s)(2608KiB/170166msec) clat (msec): min=7, max=1028, avg=58.87, stdev=70.05 lat (msec): min=7, max=1028, avg=58.87, stdev=70.05 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 31], 50.00th=[ 38], 60.00th=[ 52], | 70.00th=[ 65], 80.00th=[ 86], 90.00th=[ 120], 95.00th=[ 161], | 99.00th=[ 288], 99.50th=[ 468], 99.90th=[ 1028], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 95, per=26.68%, avg=19.74, stdev=14.04, samples=252 iops : min= 1, max= 23, avg= 4.27, stdev= 3.53, samples=252 write: IOPS=4, BW=16.6KiB/s (16.0kB/s)(2824KiB/170166msec); 0 zone resets clat (msec): min=37, max=708, avg=186.09, stdev=93.02 lat (msec): min=37, max=708, avg=186.09, stdev=93.02 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 77], 10.00th=[ 87], 20.00th=[ 107], | 30.00th=[ 127], 40.00th=[ 148], 50.00th=[ 171], 60.00th=[ 190], | 70.00th=[ 215], 80.00th=[ 253], 90.00th=[ 309], 95.00th=[ 368], | 99.00th=[ 468], 99.50th=[ 531], 99.90th=[ 709], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 7, max= 55, per=21.31%, avg=16.62, stdev= 8.94, samples=322 iops : min= 1, max= 13, avg= 3.49, stdev= 2.28, samples=322 lat (msec) : 10=1.10%, 20=8.83%, 50=18.32%, 100=21.19%, 250=39.07% lat (msec) : 500=10.89%, 750=0.44%, 2000=0.07% cpu : usr=0.04%, sys=0.94%, ctx=2065, 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=653,706,0,0 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=145573: Sun Sep 6 05:55:29 2026 read: IOPS=5, BW=22.0KiB/s (22.5kB/s)(6028KiB/273919msec) clat (msec): min=5, max=548, avg=39.48, stdev=42.28 lat (msec): min=5, max=548, avg=39.48, stdev=42.28 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 84], 95.00th=[ 115], | 99.00th=[ 186], 99.50th=[ 275], 99.90th=[ 447], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 7, max= 96, per=33.44%, avg=24.74, stdev=16.64, samples=470 iops : min= 1, max= 24, avg= 5.55, stdev= 4.19, samples=470 write: IOPS=5, BW=22.9KiB/s (23.4kB/s)(6260KiB/273919msec); 0 zone resets clat (msec): min=35, max=1204, avg=136.71, stdev=81.85 lat (msec): min=35, max=1204, avg=136.71, stdev=81.85 clat percentiles (msec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 80], | 30.00th=[ 88], 40.00th=[ 99], 50.00th=[ 112], 60.00th=[ 127], | 70.00th=[ 148], 80.00th=[ 184], 90.00th=[ 247], 95.00th=[ 296], | 99.00th=[ 409], 99.50th=[ 460], 99.90th=[ 768], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 55, per=29.15%, avg=22.74, stdev=11.79, samples=529 iops : min= 1, max= 13, avg= 5.04, stdev= 2.99, samples=529 lat (msec) : 10=2.38%, 20=14.88%, 50=22.20%, 100=27.28%, 250=28.29% lat (msec) : 500=4.82%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.30%, ctx=5746, 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=145575: Sun Sep 6 05:55:29 2026 read: IOPS=5, BW=21.8KiB/s (22.4kB/s)(6052KiB/277044msec) clat (msec): min=6, max=601, avg=39.00, stdev=44.59 lat (msec): min=6, max=601, avg=39.01, stdev=44.59 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 51], 90.00th=[ 81], 95.00th=[ 115], | 99.00th=[ 207], 99.50th=[ 292], 99.90th=[ 550], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 110, per=34.37%, avg=25.43, stdev=17.45, samples=460 iops : min= 1, max= 27, avg= 5.72, stdev= 4.41, samples=460 write: IOPS=5, BW=22.5KiB/s (23.0kB/s)(6236KiB/277044msec); 0 zone resets clat (msec): min=33, max=1121, avg=139.52, stdev=83.63 lat (msec): min=33, max=1121, avg=139.53, stdev=83.63 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 114], 60.00th=[ 133], | 70.00th=[ 155], 80.00th=[ 188], 90.00th=[ 245], 95.00th=[ 309], | 99.00th=[ 418], 99.50th=[ 447], 99.90th=[ 617], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 63, per=29.03%, avg=22.64, stdev=11.78, samples=530 iops : min= 1, max= 15, avg= 5.01, stdev= 2.99, samples=530 lat (msec) : 10=2.54%, 20=15.30%, 50=22.72%, 100=24.84%, 250=29.52% lat (msec) : 500=4.92%, 750=0.13%, 2000=0.03% cpu : usr=0.05%, sys=1.32%, ctx=5854, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=74.6KiB/s (76.4kB/s), 15.3KiB/s-22.0KiB/s (15.7kB/s-22.5kB/s), io=20.2MiB (21.2MB), run=170166-277044msec WRITE: bw=78.0KiB/s (79.9kB/s), 16.6KiB/s-22.9KiB/s (16.0kB/s-23.4kB/s), io=21.1MiB (22.1MB), run=170166-277044msec 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=145639: Sun Sep 6 05:56:05 2026 read: IOPS=14, BW=227KiB/s (233kB/s)(5920KiB/26044msec) clat (usec): min=30, max=195710, avg=34147.64, stdev=31438.34 lat (usec): min=30, max=195711, avg=34153.92, stdev=31444.09 clat percentiles (usec): | 1.00th=[ 38], 5.00th=[ 50], 10.00th=[ 59], 20.00th=[ 72], | 30.00th=[ 231], 40.00th=[ 24249], 50.00th=[ 32637], 60.00th=[ 40109], | 70.00th=[ 47973], 80.00th=[ 58983], 90.00th=[ 72877], 95.00th=[ 89654], | 99.00th=[130548], 99.50th=[154141], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 480, per=25.72%, avg=227.37, stdev=88.07, samples=51 iops : min= 1, max= 30, avg=13.45, stdev= 5.61, samples=51 write: IOPS=15, BW=245KiB/s (250kB/s)(6368KiB/26044msec); 0 zone resets clat (usec): min=1458, max=345052, avg=33242.06, stdev=37317.37 lat (usec): min=1459, max=345055, avg=33244.43, stdev=37317.64 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1975], 10.00th=[ 2999], 20.00th=[ 5538], | 30.00th=[ 7701], 40.00th=[ 12125], 50.00th=[ 17957], 60.00th=[ 30016], | 70.00th=[ 42730], 80.00th=[ 59507], 90.00th=[ 82314], 95.00th=[105382], | 99.00th=[154141], 99.50th=[185598], 99.90th=[346031], 99.95th=[346031], | 99.99th=[346031] bw ( KiB/s): min= 31, max= 572, per=26.31%, avg=244.65, stdev=98.41, samples=51 iops : min= 1, max= 35, avg=14.53, stdev= 6.18, samples=51 lat (usec) : 50=2.47%, 100=10.55%, 250=1.43%, 500=0.39%, 750=0.13% lat (msec) : 2=2.99%, 4=4.17%, 10=11.46%, 20=10.81%, 50=28.13% lat (msec) : 100=23.44%, 250=3.91%, 500=0.13% cpu : usr=0.09%, sys=6.02%, ctx=1259, 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=145640: Sun Sep 6 05:56:05 2026 read: IOPS=13, BW=221KiB/s (226kB/s)(5744KiB/26037msec) clat (usec): min=38, max=222981, avg=37329.26, stdev=35245.44 lat (usec): min=38, max=222982, avg=37330.62, stdev=35245.50 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 82], | 30.00th=[ 15139], 40.00th=[ 26608], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 49021], 80.00th=[ 62653], 90.00th=[ 80217], 95.00th=[105382], | 99.00th=[160433], 99.50th=[179307], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 61, max= 477, per=24.83%, avg=219.49, stdev=88.77, samples=51 iops : min= 3, max= 29, avg=12.96, stdev= 5.53, samples=51 write: IOPS=15, BW=251KiB/s (257kB/s)(6544KiB/26037msec); 0 zone resets clat (usec): min=1289, max=243324, avg=30640.97, stdev=34017.16 lat (usec): min=1291, max=243327, avg=30643.85, stdev=34016.92 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1811], 10.00th=[ 2311], 20.00th=[ 4621], | 30.00th=[ 7570], 40.00th=[ 11076], 50.00th=[ 15926], 60.00th=[ 24511], | 70.00th=[ 38536], 80.00th=[ 57410], 90.00th=[ 77071], 95.00th=[ 92799], | 99.00th=[126354], 99.50th=[185598], 99.90th=[244319], 99.95th=[244319], | 99.99th=[244319] bw ( KiB/s): min= 31, max= 532, per=27.07%, avg=251.71, stdev=115.79, samples=51 iops : min= 1, max= 33, avg=14.98, stdev= 7.27, samples=51 lat (usec) : 50=1.56%, 100=9.11%, 250=1.95%, 500=0.39%, 750=0.26% lat (msec) : 2=3.78%, 4=5.99%, 10=10.42%, 20=10.68%, 50=29.43% lat (msec) : 100=22.01%, 250=4.43% cpu : usr=0.08%, sys=6.32%, ctx=1344, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145641: Sun Sep 6 05:56:05 2026 read: IOPS=14, BW=231KiB/s (236kB/s)(6256KiB/27091msec) clat (usec): min=33, max=231668, avg=37036.42, stdev=33769.66 lat (usec): min=33, max=231669, avg=37038.63, stdev=33769.62 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 65], 20.00th=[ 83], | 30.00th=[ 15008], 40.00th=[ 27657], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 50594], 80.00th=[ 61080], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[137364], 99.50th=[164627], 99.90th=[231736], 99.95th=[231736], | 99.99th=[231736] bw ( KiB/s): min= 63, max= 416, per=26.22%, avg=231.75, stdev=80.65, samples=53 iops : min= 3, max= 26, avg=13.74, stdev= 5.11, samples=53 write: IOPS=13, BW=223KiB/s (228kB/s)(6032KiB/27091msec); 0 zone resets clat (usec): min=1399, max=208053, avg=32987.31, stdev=34547.05 lat (usec): min=1400, max=208056, avg=32989.58, stdev=34547.08 clat percentiles (usec): | 1.00th=[ 1532], 5.00th=[ 2040], 10.00th=[ 3130], 20.00th=[ 5342], | 30.00th=[ 8455], 40.00th=[ 12518], 50.00th=[ 19006], 60.00th=[ 28967], | 70.00th=[ 40633], 80.00th=[ 62129], 90.00th=[ 84411], 95.00th=[104334], | 99.00th=[141558], 99.50th=[189793], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 62, max= 446, per=23.72%, avg=220.57, stdev=81.22, samples=53 iops : min= 3, max= 27, avg=13.00, stdev= 5.08, samples=53 lat (usec) : 50=1.82%, 100=10.16%, 250=1.82%, 500=0.39%, 1000=0.13% lat (msec) : 2=2.47%, 4=5.08%, 10=10.29%, 20=9.51%, 50=30.21% lat (msec) : 100=23.05%, 250=5.08% cpu : usr=0.06%, sys=6.30%, ctx=1384, 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=145642: Sun Sep 6 05:56:05 2026 read: IOPS=14, BW=238KiB/s (244kB/s)(6032KiB/25318msec) clat (usec): min=34, max=368098, avg=36209.80, stdev=35964.58 lat (usec): min=34, max=368100, avg=36211.83, stdev=35965.10 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 73], | 30.00th=[ 1696], 40.00th=[ 25297], 50.00th=[ 34341], 60.00th=[ 40633], | 70.00th=[ 51643], 80.00th=[ 60556], 90.00th=[ 74974], 95.00th=[ 92799], | 99.00th=[128451], 99.50th=[175113], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 62, max= 448, per=26.84%, avg=237.31, stdev=95.69, samples=49 iops : min= 3, max= 28, avg=14.06, stdev= 6.03, samples=49 write: IOPS=15, BW=247KiB/s (253kB/s)(6256KiB/25318msec); 0 zone resets clat (usec): min=1389, max=203458, avg=29380.66, stdev=34877.95 lat (usec): min=1391, max=203462, avg=29394.67, stdev=34869.66 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1860], 10.00th=[ 2704], 20.00th=[ 4293], | 30.00th=[ 6652], 40.00th=[ 8979], 50.00th=[ 12911], 60.00th=[ 21627], | 70.00th=[ 36439], 80.00th=[ 49546], 90.00th=[ 80217], 95.00th=[108528], | 99.00th=[160433], 99.50th=[173016], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 63, max= 670, per=26.46%, avg=246.08, stdev=110.40, samples=49 iops : min= 3, max= 41, avg=14.61, stdev= 6.89, samples=49 lat (usec) : 50=1.95%, 100=11.33%, 250=0.91%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.26%, 4=5.86%, 10=13.28%, 20=9.77%, 50=27.73% lat (msec) : 100=20.83%, 250=4.69%, 500=0.13% cpu : usr=0.08%, sys=6.13%, ctx=1326, 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=884KiB/s (905kB/s), 221KiB/s-238KiB/s (226kB/s-244kB/s), io=23.4MiB (24.5MB), run=25318-27091msec WRITE: bw=930KiB/s (953kB/s), 223KiB/s-251KiB/s (228kB/s-257kB/s), io=24.6MiB (25.8MB), run=25318-27091msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145644: Sun Sep 6 05:56:46 2026 read: IOPS=5, BW=88.8KiB/s (90.0kB/s)(5920KiB/66647msec) clat (msec): min=6, max=255, avg=39.01, stdev=36.83 lat (msec): min=6, max=255, avg=39.01, stdev=36.83 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 108], | 99.00th=[ 211], 99.50th=[ 234], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 29, max= 288, per=27.63%, avg=98.35, stdev=58.93, samples=117 iops : min= 1, max= 18, avg= 5.38, stdev= 3.76, samples=117 write: IOPS=5, BW=95.5KiB/s (97.8kB/s)(6368KiB/66647msec); 0 zone resets clat (msec): min=45, max=380, avg=131.03, stdev=63.22 lat (msec): min=45, max=380, avg=131.03, stdev=63.22 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 104], 50.00th=[ 113], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 220], 95.00th=[ 259], | 99.00th=[ 372], 99.50th=[ 376], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 22, max= 223, per=25.81%, avg=96.80, stdev=43.72, samples=129 iops : min= 1, max= 13, avg= 5.29, stdev= 2.84, samples=129 lat (msec) : 10=1.04%, 20=13.67%, 50=23.96%, 100=26.56%, 250=31.38% lat (msec) : 500=3.39% cpu : usr=0.05%, sys=1.36%, ctx=1387, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145645: Sun Sep 6 05:56:46 2026 read: IOPS=5, BW=85.5KiB/s (87.6kB/s)(5744KiB/67180msec) clat (msec): min=7, max=194, avg=36.52, stdev=32.98 lat (msec): min=7, max=194, avg=36.52, stdev=32.98 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 47], 90.00th=[ 81], 95.00th=[ 111], | 99.00th=[ 188], 99.50th=[ 192], 99.90th=[ 194], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 22, max= 318, per=28.59%, avg=101.78, stdev=64.16, samples=110 iops : min= 1, max= 19, avg= 5.62, stdev= 4.08, samples=110 write: IOPS=6, BW=97.4KiB/s (99.7kB/s)(6544KiB/67180msec); 0 zone resets clat (msec): min=49, max=463, avg=132.01, stdev=66.63 lat (msec): min=49, max=463, avg=132.01, stdev=66.63 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 61], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 128], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 224], 95.00th=[ 264], | 99.00th=[ 376], 99.50th=[ 384], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 29, max= 191, per=25.98%, avg=97.44, stdev=43.34, samples=131 iops : min= 1, max= 11, avg= 5.32, stdev= 2.80, samples=131 lat (msec) : 10=1.04%, 20=15.63%, 50=22.01%, 100=26.30%, 250=31.64% lat (msec) : 500=3.39% cpu : usr=0.06%, sys=1.37%, ctx=1386, 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=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=145646: Sun Sep 6 05:56:46 2026 read: IOPS=5, BW=95.2KiB/s (97.5kB/s)(6256KiB/65736msec) clat (msec): min=7, max=238, avg=36.53, stdev=32.09 lat (msec): min=7, max=238, avg=36.54, stdev=32.11 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 32], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 70], 95.00th=[ 106], | 99.00th=[ 176], 99.50th=[ 224], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 31, max= 320, per=29.97%, avg=106.70, stdev=70.75, samples=116 iops : min= 1, max= 20, avg= 5.91, stdev= 4.53, samples=116 write: IOPS=5, BW=91.8KiB/s (93.0kB/s)(6032KiB/65736msec); 0 zone resets clat (msec): min=38, max=562, avg=136.24, stdev=69.52 lat (msec): min=38, max=562, avg=136.24, stdev=69.52 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 72], 20.00th=[ 85], | 30.00th=[ 96], 40.00th=[ 106], 50.00th=[ 116], 60.00th=[ 131], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 236], 95.00th=[ 275], | 99.00th=[ 368], 99.50th=[ 447], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 30, max= 191, per=24.74%, avg=92.79, stdev=40.19, samples=127 iops : min= 1, max= 11, avg= 5.02, stdev= 2.56, samples=127 lat (msec) : 10=0.78%, 20=14.97%, 50=27.47%, 100=22.14%, 250=30.73% lat (msec) : 500=3.78%, 750=0.13% cpu : usr=0.04%, sys=1.34%, ctx=1392, 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=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=145647: Sun Sep 6 05:56:46 2026 read: IOPS=5, BW=92.2KiB/s (94.4kB/s)(6032KiB/65408msec) clat (msec): min=7, max=225, avg=37.51, stdev=33.23 lat (msec): min=7, max=225, avg=37.52, stdev=33.23 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 83], 95.00th=[ 107], | 99.00th=[ 188], 99.50th=[ 220], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 30, max= 319, per=28.59%, avg=101.77, stdev=66.65, samples=116 iops : min= 1, max= 19, avg= 5.59, stdev= 4.25, samples=116 write: IOPS=5, BW=95.6KiB/s (97.9kB/s)(6256KiB/65408msec); 0 zone resets clat (msec): min=54, max=599, avg=130.90, stdev=66.07 lat (msec): min=54, max=599, avg=130.90, stdev=66.07 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 80], | 30.00th=[ 90], 40.00th=[ 99], 50.00th=[ 111], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 215], 95.00th=[ 251], | 99.00th=[ 342], 99.50th=[ 498], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 31, max= 191, per=25.64%, avg=96.16, stdev=42.40, samples=128 iops : min= 1, max= 11, avg= 5.24, stdev= 2.73, samples=128 lat (msec) : 10=1.43%, 20=13.15%, 50=25.26%, 100=26.95%, 250=30.60% lat (msec) : 500=2.47%, 750=0.13% cpu : usr=0.06%, sys=1.38%, ctx=1416, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=357KiB/s (365kB/s), 85.5KiB/s-95.2KiB/s (87.6kB/s-97.5kB/s), io=23.4MiB (24.5MB), run=65408-67180msec WRITE: bw=375KiB/s (384kB/s), 91.8KiB/s-97.4KiB/s (93.0kB/s-99.7kB/s), io=24.6MiB (25.8MB), run=65408-67180msec 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=145666: Sun Sep 6 05:56:59 2026 read: IOPS=1, BW=1985KiB/s (2033kB/s)(7168KiB/3611msec) clat (msec): min=74, max=545, avg=202.13, stdev=180.71 lat (msec): min=74, max=545, avg=202.13, stdev=180.71 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 75], 10.00th=[ 75], 20.00th=[ 83], | 30.00th=[ 87], 40.00th=[ 87], 50.00th=[ 100], 60.00th=[ 176], | 70.00th=[ 176], 80.00th=[ 355], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 2019, max= 5907, per=67.26%, avg=3001.25, stdev=1937.20, samples=4 iops : min= 1, max= 5, avg= 2.25, stdev= 1.89, samples=4 write: IOPS=1, BW=1418KiB/s (1452kB/s)(5120KiB/3611msec); 0 zone resets clat (msec): min=338, max=523, avg=428.23, stdev=88.53 lat (msec): min=339, max=523, avg=428.33, stdev=88.53 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 418], 60.00th=[ 418], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 523], 95.00th=[ 523], | 99.00th=[ 523], 99.50th=[ 523], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 2031, max= 4063, per=40.76%, avg=2546.25, stdev=1011.19, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=33.33%, 250=8.33%, 500=33.33%, 750=25.00% cpu : usr=0.03%, sys=5.54%, ctx=66, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145667: Sun Sep 6 05:56:59 2026 read: IOPS=0, BW=446KiB/s (457kB/s)(2048KiB/4589msec) clat (msec): min=159, max=164, avg=162.15, stdev= 3.86 lat (msec): min=159, max=164, avg=162.15, stdev= 3.86 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 165], | 70.00th=[ 165], 80.00th=[ 165], 90.00th=[ 165], 95.00th=[ 165], | 99.00th=[ 165], 99.50th=[ 165], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 1398, max= 2048, per=38.61%, avg=1723.00, stdev=459.62, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2231KiB/s (2285kB/s)(10.0MiB/4589msec); 0 zone resets clat (msec): min=166, max=899, avg=420.37, stdev=233.48 lat (msec): min=166, max=899, avg=420.49, stdev=233.46 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 182], | 30.00th=[ 232], 40.00th=[ 275], 50.00th=[ 380], 60.00th=[ 388], | 70.00th=[ 489], 80.00th=[ 510], 90.00th=[ 684], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1398, max= 4087, per=35.69%, avg=2229.57, stdev=851.96, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.79, samples=7 lat (msec) : 250=41.67%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=7.32%, ctx=140, 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=145668: Sun Sep 6 05:56:59 2026 read: IOPS=1, BW=1417KiB/s (1451kB/s)(6144KiB/4335msec) clat (msec): min=148, max=348, avg=272.43, stdev=86.89 lat (msec): min=148, max=348, avg=272.43, stdev=86.89 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 326], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 2003, max= 4087, per=57.04%, avg=2545.25, stdev=1028.03, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1417KiB/s (1451kB/s)(6144KiB/4335msec); 0 zone resets clat (msec): min=188, max=828, avg=440.33, stdev=209.75 lat (msec): min=188, max=828, avg=440.80, stdev=209.63 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 414], 50.00th=[ 414], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1408, max= 2048, per=30.87%, avg=1928.33, stdev=255.92, samples=6 iops : min= 1, max= 2, avg= 1.33, stdev= 0.52, samples=6 lat (msec) : 250=25.00%, 500=66.67%, 1000=8.33% cpu : usr=0.00%, sys=4.66%, ctx=128, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145669: Sun Sep 6 05:56:59 2026 read: IOPS=1, BW=1485KiB/s (1521kB/s)(5120KiB/3448msec) clat (msec): min=119, max=292, avg=186.54, stdev=69.74 lat (msec): min=119, max=292, avg=186.54, stdev=69.74 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 121], | 30.00th=[ 128], 40.00th=[ 128], 50.00th=[ 197], 60.00th=[ 197], | 70.00th=[ 197], 80.00th=[ 197], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 3976, max= 4007, per=89.46%, avg=3991.50, stdev=21.92, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2079KiB/s (2129kB/s)(7168KiB/3448msec); 0 zone resets clat (msec): min=184, max=555, avg=347.42, stdev=139.01 lat (msec): min=185, max=555, avg=347.52, stdev=139.02 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 253], | 30.00th=[ 259], 40.00th=[ 259], 50.00th=[ 300], 60.00th=[ 376], | 70.00th=[ 376], 80.00th=[ 510], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1988, max= 2727, per=34.71%, avg=2168.20, stdev=313.29, samples=5 iops : min= 1, max= 2, avg= 1.40, stdev= 0.55, samples=5 lat (msec) : 250=41.67%, 500=41.67%, 750=16.67% cpu : usr=0.06%, sys=4.09%, ctx=54, 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=4463KiB/s (4570kB/s), 446KiB/s-1985KiB/s (457kB/s-2033kB/s), io=20.0MiB (20.0MB), run=3448-4589msec WRITE: bw=6248KiB/s (6398kB/s), 1417KiB/s-2231KiB/s (1451kB/s-2285kB/s), io=28.0MiB (29.4MB), run=3448-4589msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145671: Sun Sep 6 05:56:59 2026 read: IOPS=1, BW=2033KiB/s (2082kB/s)(7168KiB/3525msec) clat (usec): min=550, max=362376, avg=174606.68, stdev=136239.31 lat (usec): min=551, max=362377, avg=174608.14, stdev=136239.55 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[ 1631], | 30.00th=[168821], 40.00th=[168821], 50.00th=[179307], 60.00th=[217056], | 70.00th=[217056], 80.00th=[291505], 90.00th=[362808], 95.00th=[362808], | 99.00th=[362808], 99.50th=[362808], 99.90th=[362808], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 2023, max= 4830, per=78.65%, avg=3628.00, stdev=1446.24, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1452KiB/s (1487kB/s)(5120KiB/3525msec); 0 zone resets clat (msec): min=334, max=629, avg=460.11, stdev=111.83 lat (msec): min=335, max=629, avg=460.19, stdev=111.84 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 435], 60.00th=[ 435], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 634], 95.00th=[ 634], | 99.00th=[ 634], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 1980, max= 3813, per=40.34%, avg=2605.33, stdev=1046.09, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=50.00%, 750=8.33% cpu : usr=0.11%, sys=15.61%, ctx=302, 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=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=145672: Sun Sep 6 05:56:59 2026 read: IOPS=0, BW=461KiB/s (472kB/s)(2048KiB/4439msec) clat (usec): min=592, max=234265, avg=117428.61, stdev=165231.65 lat (usec): min=593, max=234268, avg=117430.81, stdev=165232.87 clat percentiles (usec): | 1.00th=[ 594], 5.00th=[ 594], 10.00th=[ 594], 20.00th=[ 594], | 30.00th=[ 594], 40.00th=[ 594], 50.00th=[ 594], 60.00th=[233833], | 70.00th=[233833], 80.00th=[233833], 90.00th=[233833], 95.00th=[233833], | 99.00th=[233833], 99.50th=[233833], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 1630, max= 1906, per=38.33%, avg=1768.00, stdev=195.16, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2307KiB/s (2362kB/s)(10.0MiB/4439msec); 0 zone resets clat (msec): min=189, max=1089, avg=420.02, stdev=285.58 lat (msec): min=189, max=1089, avg=420.18, stdev=285.55 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 190], 10.00th=[ 190], 20.00th=[ 230], | 30.00th=[ 234], 40.00th=[ 249], 50.00th=[ 292], 60.00th=[ 305], | 70.00th=[ 422], 80.00th=[ 456], 90.00th=[ 743], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 1906, max= 6107, per=46.67%, avg=3014.33, stdev=1722.23, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=15.93%, ctx=141, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145673: Sun Sep 6 05:56:59 2026 read: IOPS=1, BW=1891KiB/s (1936kB/s)(6144KiB/3249msec) clat (usec): min=513, max=391747, avg=123084.25, stdev=178535.29 lat (usec): min=515, max=391749, avg=123085.34, stdev=178535.24 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 742], | 30.00th=[ 742], 40.00th=[ 898], 50.00th=[ 898], 60.00th=[ 35390], | 70.00th=[308282], 80.00th=[308282], 90.00th=[392168], 95.00th=[392168], | 99.00th=[392168], 99.50th=[392168], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 1906, max= 4031, per=54.19%, avg=2499.75, stdev=1022.55, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1891KiB/s (1936kB/s)(6144KiB/3249msec); 0 zone resets clat (msec): min=194, max=754, avg=417.96, stdev=191.18 lat (msec): min=194, max=755, avg=418.05, stdev=191.19 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 359], 50.00th=[ 359], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 464], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1537, max= 2039, per=29.35%, avg=1895.40, stdev=206.55, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (usec) : 750=16.67%, 1000=8.33% lat (msec) : 50=8.33%, 250=8.33%, 500=50.00%, 1000=8.33% cpu : usr=0.00%, sys=14.66%, ctx=215, 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=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=145674: Sun Sep 6 05:56:59 2026 read: IOPS=1, BW=1419KiB/s (1453kB/s)(5120KiB/3608msec) clat (usec): min=1224, max=339931, avg=159745.99, stdev=124348.75 lat (usec): min=1226, max=339932, avg=159747.27, stdev=124348.60 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1221], 10.00th=[ 1221], 20.00th=[ 1221], | 30.00th=[109577], 40.00th=[109577], 50.00th=[147850], 60.00th=[147850], | 70.00th=[200279], 80.00th=[200279], 90.00th=[341836], 95.00th=[341836], | 99.00th=[341836], 99.50th=[341836], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 7627, max= 7627, per=100.00%, avg=7627.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1987KiB/s (2034kB/s)(7168KiB/3608msec); 0 zone resets clat (msec): min=204, max=750, avg=400.81, stdev=238.07 lat (msec): min=204, max=750, avg=401.03, stdev=237.97 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 236], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 305], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 743], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1602, max= 2039, per=29.91%, avg=1931.80, stdev=185.62, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=17.52%, ctx=197, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4614KiB/s (4724kB/s), 461KiB/s-2033KiB/s (472kB/s-2082kB/s), io=20.0MiB (20.0MB), run=3249-4439msec WRITE: bw=6459KiB/s (6614kB/s), 1452KiB/s-2307KiB/s (1487kB/s-2362kB/s), io=28.0MiB (29.4MB), run=3249-4439msec 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=145680: Sun Sep 6 05:57:12 2026 read: IOPS=1, BW=4381KiB/s (4486kB/s)(12.0MiB/2805msec) clat (msec): min=810, max=1013, avg=913.35, stdev=101.51 lat (msec): min=810, max=1013, avg=913.35, stdev=101.51 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 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= 7937, max= 8031, per=100.00%, avg=7984.00, stdev=66.47, 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=13.52%, ctx=368, 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=145681: Sun Sep 6 05:57:12 2026 read: IOPS=0, BW=1746KiB/s (1788kB/s)(4096KiB/2346msec) clat (nsec): min=921444k, max=921444k, avg=921443781.00, stdev= 0.00 lat (nsec): min=921447k, max=921447k, avg=921446551.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 919], 50.00th=[ 919], 60.00th=[ 919], | 70.00th=[ 919], 80.00th=[ 919], 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= 8031, max= 8031, per=100.00%, avg=8031.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3492KiB/s (3576kB/s)(8192KiB/2346msec); 0 zone resets clat (msec): min=377, max=873, avg=625.70, stdev=350.85 lat (msec): min=378, max=874, avg=626.18, stdev=350.73 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 380], 10.00th=[ 380], 20.00th=[ 380], | 30.00th=[ 380], 40.00th=[ 380], 50.00th=[ 380], 60.00th=[ 877], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 8192, max= 8192, per=80.96%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=10.28%, ctx=159, 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=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=145683: Sun Sep 6 05:57:12 2026 write: IOPS=0, BW=3795KiB/s (3886kB/s)(12.0MiB/3238msec); 0 zone resets clat (msec): min=569, max=1370, avg=1068.72, stdev=435.21 lat (msec): min=570, max=1372, avg=1070.70, stdev=436.45 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 7968, max= 8126, per=79.52%, avg=8047.00, stdev=111.72, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=5.04%, ctx=66, 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=145684: Sun Sep 6 05:57:12 2026 write: IOPS=1, BW=4741KiB/s (4855kB/s)(12.0MiB/2592msec); 0 zone resets clat (msec): min=411, max=1669, avg=837.19, stdev=720.92 lat (msec): min=412, max=1669, avg=837.76, stdev=720.63 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 430], 50.00th=[ 430], 60.00th=[ 430], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7713, max= 8031, per=77.79%, avg=7872.00, stdev=224.86, 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=5.79%, ctx=56, 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=5841KiB/s (5981kB/s), 1746KiB/s-4381KiB/s (1788kB/s-4486kB/s), io=16.0MiB (16.8MB), run=2346-2805msec WRITE: bw=9.88MiB/s (10.4MB/s), 3492KiB/s-4741KiB/s (3576kB/s-4855kB/s), io=32.0MiB (33.6MB), run=2346-3238msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145686: Sun Sep 6 05:57:13 2026 read: IOPS=0, BW=3816KiB/s (3908kB/s)(12.0MiB/3220msec) clat (msec): min=567, max=1370, avg=1073.10, stdev=439.74 lat (msec): min=567, max=1370, avg=1073.10, stdev=439.74 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8175, max= 8192, per=100.00%, avg=8183.50, stdev=12.02, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.01%, ctx=54, 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=145687: Sun Sep 6 05:57:13 2026 read: IOPS=0, BW=1306KiB/s (1337kB/s)(4096KiB/3137msec) clat (nsec): min=1561.4M, max=1561.4M, avg=1561424806.00, stdev= 0.00 lat (nsec): min=1561.4M, max=1561.4M, avg=1561427174.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1569], 5.00th=[ 1569], 10.00th=[ 1569], 20.00th=[ 1569], | 30.00th=[ 1569], 40.00th=[ 1569], 50.00th=[ 1569], 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= 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=2611KiB/s (2674kB/s)(8192KiB/3137msec); 0 zone resets clat (msec): min=699, max=788, avg=744.05, stdev=63.22 lat (msec): min=699, max=789, avg=744.52, stdev=63.13 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8175, max= 8175, per=84.90%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.99%, ctx=50, 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=145688: Sun Sep 6 05:57:13 2026 write: IOPS=0, BW=3611KiB/s (3698kB/s)(12.0MiB/3403msec); 0 zone resets clat (msec): min=506, max=1671, avg=1133.36, stdev=587.17 lat (msec): min=508, max=1671, avg=1133.99, stdev=586.73 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 506], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1670], 80.00th=[ 1670], 90.00th=[ 1670], 95.00th=[ 1670], | 99.00th=[ 1670], 99.50th=[ 1670], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 8159, max= 8192, per=84.90%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.06%, sys=3.47%, ctx=39, 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=145689: Sun Sep 6 05:57:13 2026 write: IOPS=1, BW=4886KiB/s (5003kB/s)(12.0MiB/2515msec); 0 zone resets clat (msec): min=448, max=1536, avg=836.62, stdev=607.10 lat (msec): min=451, max=1536, avg=837.87, stdev=606.29 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 447], 10.00th=[ 447], 20.00th=[ 447], | 30.00th=[ 447], 40.00th=[ 527], 50.00th=[ 527], 60.00th=[ 527], | 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= 5988, max= 8047, per=72.88%, avg=7017.50, stdev=1455.93, 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=5.49%, ctx=44, 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=5088KiB/s (5210kB/s), 1306KiB/s-3816KiB/s (1337kB/s-3908kB/s), io=16.0MiB (16.8MB), run=3137-3220msec WRITE: bw=9629KiB/s (9860kB/s), 2611KiB/s-4886KiB/s (2674kB/s-5003kB/s), io=32.0MiB (33.6MB), run=2515-3403msec