== sanity test 398b: DIO and buffer IO race ============== 03:08:52 (1790924932) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.6175 s, 7.6 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=144974: Fri Oct 2 03:11:18 2026 read: IOPS=11, BW=47.9KiB/s (49.1kB/s)(5992KiB/125051msec) clat (usec): min=24, max=856994, avg=40005.76, stdev=39066.39 lat (usec): min=24, max=856995, avg=40012.61, stdev=39070.04 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 59], 10.00th=[ 75], 20.00th=[ 16319], | 30.00th=[ 22152], 40.00th=[ 27395], 50.00th=[ 33424], 60.00th=[ 40633], | 70.00th=[ 49021], 80.00th=[ 60556], 90.00th=[ 76022], 95.00th=[ 98042], | 99.00th=[135267], 99.50th=[158335], 99.90th=[501220], 99.95th=[859833], | 99.99th=[859833] bw ( KiB/s): min= 7, max= 103, per=25.25%, avg=47.98, stdev=19.64, samples=244 iops : min= 1, max= 25, avg=11.35, stdev= 4.95, samples=244 write: IOPS=12, BW=50.3KiB/s (51.6kB/s)(6296KiB/125051msec); 0 zone resets clat (usec): min=721, max=269282, avg=41037.02, stdev=41586.43 lat (usec): min=722, max=269284, avg=41041.15, stdev=41585.36 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1221], 10.00th=[ 1516], 20.00th=[ 4015], | 30.00th=[ 7963], 40.00th=[ 19792], 50.00th=[ 31065], 60.00th=[ 41157], | 70.00th=[ 54264], 80.00th=[ 70779], 90.00th=[ 99091], 95.00th=[122160], | 99.00th=[173016], 99.50th=[204473], 99.90th=[254804], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 103, per=25.22%, avg=50.19, stdev=19.53, samples=245 iops : min= 1, max= 25, avg=11.89, stdev= 4.93, samples=245 lat (usec) : 50=0.85%, 100=4.88%, 250=0.33%, 500=0.10%, 750=0.13% lat (usec) : 1000=0.10% lat (msec) : 2=6.45%, 4=3.94%, 10=6.67%, 20=9.41%, 50=36.07% lat (msec) : 100=23.76%, 250=7.16%, 500=0.10%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.46%, ctx=6432, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144977: Fri Oct 2 03:11:18 2026 read: IOPS=11, BW=47.1KiB/s (48.2kB/s)(5940KiB/126106msec) clat (usec): min=25, max=256875, avg=39845.10, stdev=32162.09 lat (usec): min=25, max=256876, avg=39847.90, stdev=32162.35 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 79], 20.00th=[ 16057], | 30.00th=[ 22676], 40.00th=[ 28443], 50.00th=[ 33817], 60.00th=[ 40109], | 70.00th=[ 49021], 80.00th=[ 60556], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[139461], 99.50th=[179307], 99.90th=[250610], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 6, max= 101, per=24.70%, avg=46.92, stdev=19.04, samples=247 iops : min= 1, max= 25, avg=11.09, stdev= 4.79, samples=247 write: IOPS=12, BW=50.3KiB/s (51.5kB/s)(6348KiB/126106msec); 0 zone resets clat (usec): min=810, max=838694, avg=41844.29, stdev=46555.65 lat (usec): min=811, max=838695, avg=41850.64, stdev=46554.04 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1254], 10.00th=[ 1729], 20.00th=[ 4228], | 30.00th=[ 8291], 40.00th=[ 18482], 50.00th=[ 30540], 60.00th=[ 43779], | 70.00th=[ 55837], 80.00th=[ 71828], 90.00th=[ 95945], 95.00th=[123208], | 99.00th=[179307], 99.50th=[212861], 99.90th=[325059], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 168, per=25.26%, avg=50.28, stdev=23.02, samples=247 iops : min= 1, max= 42, avg=11.92, stdev= 5.81, samples=247 lat (usec) : 50=0.78%, 100=4.82%, 250=0.65%, 500=0.07%, 750=0.10% lat (usec) : 1000=0.20% lat (msec) : 2=6.15%, 4=3.81%, 10=7.19%, 20=9.54%, 50=34.38% lat (msec) : 100=25.20%, 250=6.93%, 500=0.16%, 1000=0.03% cpu : usr=0.09%, sys=5.48%, ctx=6472, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144979: Fri Oct 2 03:11:18 2026 read: IOPS=12, BW=48.2KiB/s (49.4kB/s)(6028KiB/124981msec) clat (usec): min=30, max=287491, avg=38544.40, stdev=32525.22 lat (usec): min=30, max=287492, avg=38547.95, stdev=32527.40 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 73], 20.00th=[ 14877], | 30.00th=[ 21890], 40.00th=[ 26608], 50.00th=[ 31851], 60.00th=[ 39060], | 70.00th=[ 48497], 80.00th=[ 59507], 90.00th=[ 77071], 95.00th=[ 94897], | 99.00th=[149947], 99.50th=[202376], 99.90th=[270533], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 110, per=25.61%, avg=48.66, stdev=20.85, samples=241 iops : min= 1, max= 27, avg=11.51, stdev= 5.25, samples=241 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6260KiB/124981msec); 0 zone resets clat (usec): min=779, max=1149.2k, avg=42402.65, stdev=51247.72 lat (usec): min=779, max=1149.2k, avg=42407.46, stdev=51247.14 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1582], | 20.00th=[ 4113], 30.00th=[ 8717], 40.00th=[ 20055], | 50.00th=[ 31589], 60.00th=[ 43254], 70.00th=[ 55837], | 80.00th=[ 71828], 90.00th=[ 95945], 95.00th=[ 123208], | 99.00th=[ 179307], 99.50th=[ 254804], 99.90th=[ 320865], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 7, max= 120, per=25.14%, avg=50.03, stdev=20.77, samples=243 iops : min= 1, max= 30, avg=11.86, stdev= 5.23, samples=243 lat (usec) : 50=0.91%, 100=5.27%, 250=0.52%, 500=0.26%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=6.02%, 4=3.87%, 10=6.41%, 20=10.03%, 50=35.19% lat (msec) : 100=24.64%, 250=6.15%, 500=0.36%, 2000=0.03% cpu : usr=0.09%, sys=5.25%, ctx=6397, 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=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=144981: Fri Oct 2 03:11:18 2026 read: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6052KiB/124524msec) clat (usec): min=25, max=837842, avg=39825.76, stdev=39488.77 lat (usec): min=26, max=837844, avg=39827.65, stdev=39488.45 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 14746], | 30.00th=[ 22676], 40.00th=[ 27919], 50.00th=[ 33162], 60.00th=[ 39584], | 70.00th=[ 50070], 80.00th=[ 61080], 90.00th=[ 77071], 95.00th=[ 98042], | 99.00th=[139461], 99.50th=[154141], 99.90th=[434111], 99.95th=[834667], | 99.99th=[834667] bw ( KiB/s): min= 7, max= 111, per=25.75%, avg=48.93, stdev=19.45, samples=242 iops : min= 1, max= 27, avg=11.58, stdev= 4.91, samples=242 write: IOPS=12, BW=50.1KiB/s (51.3kB/s)(6236KiB/124524msec); 0 zone resets clat (usec): min=863, max=334559, avg=40913.62, stdev=41635.83 lat (usec): min=865, max=334561, avg=40915.91, stdev=41635.71 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1221], 10.00th=[ 1483], 20.00th=[ 3720], | 30.00th=[ 8586], 40.00th=[ 19530], 50.00th=[ 30540], 60.00th=[ 41681], | 70.00th=[ 53216], 80.00th=[ 70779], 90.00th=[ 96994], 95.00th=[123208], | 99.00th=[179307], 99.50th=[202376], 99.90th=[308282], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 7, max= 119, per=25.02%, avg=49.79, stdev=21.09, samples=245 iops : min= 1, max= 29, avg=11.80, stdev= 5.31, samples=245 lat (usec) : 50=1.11%, 100=5.50%, 250=0.62%, 500=0.13%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=6.61%, 4=3.91%, 10=6.02%, 20=8.85%, 50=35.64% lat (msec) : 100=24.58%, 250=6.58%, 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=5.39%, ctx=6366, 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=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=190KiB/s (195kB/s), 47.1KiB/s-48.6KiB/s (48.2kB/s-49.8kB/s), io=23.4MiB (24.6MB), run=124524-126106msec WRITE: bw=199KiB/s (204kB/s), 50.1KiB/s-50.3KiB/s (51.3kB/s-51.6kB/s), io=24.6MiB (25.7MB), run=124524-126106msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144975: Fri Oct 2 03:13:44 2026 read: IOPS=5, BW=22.0KiB/s (22.6kB/s)(5992KiB/272041msec) clat (msec): min=4, max=893, avg=34.35, stdev=38.89 lat (msec): min=4, max=893, avg=34.36, stdev=38.89 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 75], 95.00th=[ 99], | 99.00th=[ 161], 99.50th=[ 178], 99.90th=[ 372], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 7, max= 104, per=28.03%, avg=24.66, stdev=17.09, samples=468 iops : min= 1, max= 26, avg= 5.54, stdev= 4.32, samples=468 write: IOPS=5, BW=23.1KiB/s (23.7kB/s)(6296KiB/272041msec); 0 zone resets clat (msec): min=38, max=544, avg=139.84, stdev=66.07 lat (msec): min=38, max=544, avg=139.84, stdev=66.07 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 73], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 111], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 159], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 266], | 99.00th=[ 380], 99.50th=[ 456], 99.90th=[ 527], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 56, per=24.75%, avg=22.77, stdev=10.08, samples=531 iops : min= 1, max= 14, avg= 5.06, stdev= 2.58, samples=531 lat (msec) : 10=3.71%, 20=17.58%, 50=18.88%, 100=21.32%, 250=35.38% lat (msec) : 500=2.99%, 750=0.10%, 1000=0.03% cpu : usr=0.04%, sys=1.12%, ctx=5067, 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= 0: pid=144976: Fri Oct 2 03:13:44 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(5940KiB/271309msec) clat (msec): min=5, max=866, avg=34.09, stdev=38.60 lat (msec): min=5, max=866, avg=34.09, stdev=38.60 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 45], 90.00th=[ 73], 95.00th=[ 101], | 99.00th=[ 169], 99.50th=[ 190], 99.90th=[ 279], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 87, per=27.80%, avg=24.47, stdev=16.24, samples=468 iops : min= 1, max= 21, avg= 5.49, stdev= 4.10, samples=468 write: IOPS=5, BW=23.4KiB/s (23.0kB/s)(6348KiB/271309msec); 0 zone resets clat (msec): min=37, max=541, avg=138.77, stdev=67.75 lat (msec): min=37, max=541, avg=138.78, stdev=67.75 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 71], 20.00th=[ 85], | 30.00th=[ 97], 40.00th=[ 109], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 159], 80.00th=[ 186], 90.00th=[ 228], 95.00th=[ 271], | 99.00th=[ 368], 99.50th=[ 393], 99.90th=[ 510], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 7, max= 56, per=25.01%, avg=23.01, stdev=10.51, samples=531 iops : min= 1, max= 14, avg= 5.12, stdev= 2.69, samples=531 lat (msec) : 10=3.32%, 20=17.84%, 50=19.01%, 100=22.43%, 250=33.56% lat (msec) : 500=3.74%, 750=0.07%, 1000=0.03% cpu : usr=0.05%, sys=1.13%, ctx=5174, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144978: Fri Oct 2 03:13:44 2026 read: IOPS=5, BW=22.2KiB/s (22.7kB/s)(6028KiB/271739msec) clat (msec): min=4, max=295, avg=35.36, stdev=34.25 lat (msec): min=4, max=295, avg=35.36, stdev=34.25 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 51], 90.00th=[ 81], 95.00th=[ 106], | 99.00th=[ 171], 99.50th=[ 211], 99.90th=[ 230], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 7, max= 104, per=27.56%, avg=24.25, stdev=16.80, samples=480 iops : min= 1, max= 26, avg= 5.44, stdev= 4.24, samples=480 write: IOPS=5, BW=23.0KiB/s (23.6kB/s)(6260KiB/271739msec); 0 zone resets clat (msec): min=34, max=1112, avg=139.27, stdev=70.48 lat (msec): min=34, max=1112, avg=139.27, stdev=70.48 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 62], 10.00th=[ 73], 20.00th=[ 87], | 30.00th=[ 99], 40.00th=[ 111], 50.00th=[ 125], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 182], 90.00th=[ 228], 95.00th=[ 266], | 99.00th=[ 363], 99.50th=[ 439], 99.90th=[ 542], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 7, max= 56, per=24.91%, avg=22.92, stdev=10.29, samples=526 iops : min= 1, max= 14, avg= 5.10, stdev= 2.63, samples=526 lat (msec) : 10=3.97%, 20=16.34%, 50=19.56%, 100=22.27%, 250=34.64% lat (msec) : 500=3.09%, 750=0.10%, 2000=0.03% cpu : usr=0.05%, sys=1.10%, ctx=5085, 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=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=144980: Fri Oct 2 03:13:44 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6052KiB/270742msec) clat (msec): min=5, max=357, avg=33.94, stdev=34.07 lat (msec): min=5, max=357, avg=33.94, stdev=34.07 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 78], 95.00th=[ 105], | 99.00th=[ 159], 99.50th=[ 203], 99.90th=[ 292], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 7, max= 112, per=28.52%, avg=25.09, stdev=17.64, samples=466 iops : min= 1, max= 28, avg= 5.65, stdev= 4.46, samples=466 write: IOPS=5, BW=23.0KiB/s (23.6kB/s)(6236KiB/270742msec); 0 zone resets clat (msec): min=40, max=1090, avg=140.43, stdev=68.98 lat (msec): min=40, max=1090, avg=140.43, stdev=68.98 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 102], 40.00th=[ 112], 50.00th=[ 126], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 226], 95.00th=[ 262], | 99.00th=[ 368], 99.50th=[ 397], 99.90th=[ 550], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 48, per=24.58%, avg=22.62, stdev=10.23, samples=531 iops : min= 1, max= 12, avg= 5.02, stdev= 2.62, samples=531 lat (msec) : 10=3.97%, 20=18.13%, 50=18.78%, 100=20.48%, 250=35.42% lat (msec) : 500=3.16%, 750=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.10%, ctx=5118, 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=88.3KiB/s (90.4kB/s), 21.9KiB/s-22.4KiB/s (22.4kB/s-22.9kB/s), io=23.4MiB (24.6MB), run=270742-272041msec WRITE: bw=92.4KiB/s (94.6kB/s), 23.0KiB/s-23.4KiB/s (23.6kB/s-23.0kB/s), io=24.6MiB (25.7MB), run=270742-272041msec 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=145035: Fri Oct 2 03:14:22 2026 read: IOPS=14, BW=228KiB/s (233kB/s)(5920KiB/26008msec) clat (usec): min=35, max=164970, avg=35256.17, stdev=31030.60 lat (usec): min=35, max=164972, avg=35263.95, stdev=31042.35 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 62], 20.00th=[ 76], | 30.00th=[ 19792], 40.00th=[ 27132], 50.00th=[ 33817], 60.00th=[ 38536], | 70.00th=[ 46400], 80.00th=[ 56361], 90.00th=[ 74974], 95.00th=[ 90702], | 99.00th=[156238], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 63, max= 604, per=26.98%, avg=232.54, stdev=95.32, samples=50 iops : min= 3, max= 37, avg=13.78, stdev= 6.01, samples=50 write: IOPS=15, BW=245KiB/s (251kB/s)(6368KiB/26008msec); 0 zone resets clat (usec): min=1472, max=248799, avg=31968.01, stdev=35037.41 lat (usec): min=1474, max=248801, avg=31970.96, stdev=35037.03 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 2040], 10.00th=[ 2933], 20.00th=[ 5145], | 30.00th=[ 7832], 40.00th=[ 11994], 50.00th=[ 18482], 60.00th=[ 30802], | 70.00th=[ 39060], 80.00th=[ 53216], 90.00th=[ 77071], 95.00th=[ 99091], | 99.00th=[160433], 99.50th=[208667], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 62, max= 444, per=27.60%, avg=250.32, stdev=91.66, samples=50 iops : min= 3, max= 27, avg=14.90, stdev= 5.82, samples=50 lat (usec) : 50=2.08%, 100=9.38%, 250=0.39%, 500=0.26%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=2.47%, 4=6.12%, 10=11.07%, 20=9.11%, 50=34.77% lat (msec) : 100=19.92%, 250=4.04% cpu : usr=0.10%, sys=6.20%, ctx=1396, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145036: Fri Oct 2 03:14:22 2026 read: IOPS=13, BW=222KiB/s (228kB/s)(5744KiB/25836msec) clat (usec): min=38, max=258041, avg=36405.91, stdev=31868.96 lat (usec): min=38, max=258043, avg=36479.61, stdev=31896.49 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 88], | 30.00th=[ 22938], 40.00th=[ 28967], 50.00th=[ 34866], 60.00th=[ 39584], | 70.00th=[ 45876], 80.00th=[ 55837], 90.00th=[ 73925], 95.00th=[ 88605], | 99.00th=[135267], 99.50th=[248513], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 93, max= 435, per=25.81%, avg=222.47, stdev=93.33, samples=51 iops : min= 5, max= 27, avg=13.14, stdev= 5.90, samples=51 write: IOPS=15, BW=253KiB/s (259kB/s)(6544KiB/25836msec); 0 zone resets clat (usec): min=1076, max=216924, avg=30957.76, stdev=33473.77 lat (usec): min=1078, max=216926, avg=30968.05, stdev=33474.59 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1745], 10.00th=[ 1958], 20.00th=[ 4359], | 30.00th=[ 7111], 40.00th=[ 10028], 50.00th=[ 19530], 60.00th=[ 28705], | 70.00th=[ 39584], 80.00th=[ 55837], 90.00th=[ 79168], 95.00th=[101188], | 99.00th=[141558], 99.50th=[149947], 99.90th=[217056], 99.95th=[217056], | 99.99th=[217056] bw ( KiB/s): min= 31, max= 512, per=27.86%, avg=252.71, stdev=97.63, samples=51 iops : min= 1, max= 32, avg=15.06, stdev= 6.26, samples=51 lat (usec) : 50=0.78%, 100=8.72%, 250=0.39%, 500=0.52% lat (msec) : 2=5.47%, 4=4.30%, 10=11.46%, 20=7.81%, 50=36.33% lat (msec) : 100=20.44%, 250=3.65%, 500=0.13% cpu : usr=0.10%, sys=6.11%, ctx=1393, 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=145037: Fri Oct 2 03:14:22 2026 read: IOPS=14, BW=225KiB/s (231kB/s)(6256KiB/27776msec) clat (usec): min=33, max=239710, avg=34506.11, stdev=31485.36 lat (usec): min=34, max=239711, avg=34507.38, stdev=31485.35 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 76], | 30.00th=[ 14615], 40.00th=[ 25822], 50.00th=[ 30802], 60.00th=[ 38536], | 70.00th=[ 46924], 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 88605], | 99.00th=[126354], 99.50th=[154141], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 31, max= 574, per=26.65%, avg=229.70, stdev=104.26, samples=53 iops : min= 1, max= 35, avg=13.58, stdev= 6.54, samples=53 write: IOPS=13, BW=217KiB/s (222kB/s)(6032KiB/27776msec); 0 zone resets clat (usec): min=1373, max=280735, avg=37074.28, stdev=41717.17 lat (usec): min=1374, max=280738, avg=37083.76, stdev=41713.80 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1893], 10.00th=[ 3032], 20.00th=[ 5211], | 30.00th=[ 8291], 40.00th=[ 13304], 50.00th=[ 22938], 60.00th=[ 34866], | 70.00th=[ 46400], 80.00th=[ 63177], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[193987], 99.50th=[235930], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 413, per=23.56%, avg=213.70, stdev=99.93, samples=54 iops : min= 1, max= 25, avg=12.57, stdev= 6.32, samples=54 lat (usec) : 50=1.69%, 100=10.81%, 250=0.91%, 750=0.13%, 1000=0.13% lat (msec) : 2=3.12%, 4=4.69%, 10=10.68%, 20=7.55%, 50=32.16% lat (msec) : 100=23.05%, 250=4.95%, 500=0.13% cpu : usr=0.07%, sys=5.65%, ctx=1470, 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=145038: Fri Oct 2 03:14:22 2026 read: IOPS=13, BW=223KiB/s (229kB/s)(6032KiB/27014msec) clat (usec): min=36, max=208321, avg=37139.45, stdev=33954.04 lat (usec): min=36, max=208322, avg=37142.07, stdev=33953.45 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 56], 10.00th=[ 63], 20.00th=[ 81], | 30.00th=[ 18220], 40.00th=[ 26346], 50.00th=[ 33817], 60.00th=[ 41157], | 70.00th=[ 47973], 80.00th=[ 61604], 90.00th=[ 78119], 95.00th=[ 94897], | 99.00th=[160433], 99.50th=[196084], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 63, max= 447, per=26.68%, avg=230.02, stdev=82.32, samples=51 iops : min= 3, max= 27, avg=13.61, stdev= 5.22, samples=51 write: IOPS=14, BW=232KiB/s (237kB/s)(6256KiB/27014msec); 0 zone resets clat (usec): min=1439, max=265550, avg=32292.02, stdev=36346.48 lat (usec): min=1441, max=265554, avg=32299.85, stdev=36346.12 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1991], 10.00th=[ 3195], 20.00th=[ 5080], | 30.00th=[ 7963], 40.00th=[ 12125], 50.00th=[ 19268], 60.00th=[ 28705], | 70.00th=[ 40633], 80.00th=[ 54789], 90.00th=[ 81265], 95.00th=[100140], | 99.00th=[158335], 99.50th=[223347], 99.90th=[265290], 99.95th=[265290], | 99.99th=[265290] bw ( KiB/s): min= 30, max= 411, per=25.44%, avg=230.70, stdev=83.46, samples=53 iops : min= 1, max= 25, avg=13.66, stdev= 5.32, samples=53 lat (usec) : 50=1.43%, 100=9.90%, 250=1.17% lat (msec) : 2=2.99%, 4=4.17%, 10=12.11%, 20=9.90%, 50=32.16% lat (msec) : 100=21.35%, 250=4.69%, 500=0.13% cpu : usr=0.09%, sys=5.95%, ctx=1461, 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=862KiB/s (883kB/s), 222KiB/s-228KiB/s (228kB/s-233kB/s), io=23.4MiB (24.5MB), run=25836-27776msec WRITE: bw=907KiB/s (929kB/s), 217KiB/s-253KiB/s (222kB/s-259kB/s), io=24.6MiB (25.8MB), run=25836-27776msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145030: Fri Oct 2 03:15:02 2026 read: IOPS=5, BW=88.6KiB/s (90.7kB/s)(5920KiB/66827msec) clat (msec): min=7, max=440, avg=36.11, stdev=35.86 lat (msec): min=7, max=440, avg=36.11, stdev=35.86 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 49], 90.00th=[ 74], 95.00th=[ 95], | 99.00th=[ 171], 99.50th=[ 178], 99.90th=[ 439], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 31, max= 312, per=27.97%, avg=98.75, stdev=64.41, samples=116 iops : min= 1, max= 19, avg= 5.35, stdev= 4.10, samples=116 write: IOPS=5, BW=95.3KiB/s (97.6kB/s)(6368KiB/66827msec); 0 zone resets clat (msec): min=44, max=381, avg=133.82, stdev=62.02 lat (msec): min=44, max=381, avg=133.82, stdev=62.02 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 64], 10.00th=[ 71], 20.00th=[ 83], | 30.00th=[ 94], 40.00th=[ 107], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 148], 80.00th=[ 178], 90.00th=[ 232], 95.00th=[ 264], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 21, max= 191, per=25.73%, avg=95.71, stdev=42.40, samples=130 iops : min= 1, max= 11, avg= 5.16, stdev= 2.65, samples=130 lat (msec) : 10=1.43%, 20=15.10%, 50=22.40%, 100=25.00%, 250=32.42% lat (msec) : 500=3.65% cpu : usr=0.03%, sys=1.20%, ctx=1205, 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=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=145032: Fri Oct 2 03:15:02 2026 read: IOPS=5, BW=84.9KiB/s (86.9kB/s)(5744KiB/67669msec) clat (msec): min=5, max=270, avg=36.55, stdev=36.16 lat (msec): min=5, max=270, avg=36.55, stdev=36.16 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 81], 95.00th=[ 111], | 99.00th=[ 215], 99.50th=[ 232], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 21, max= 349, per=27.10%, avg=95.67, stdev=67.54, samples=117 iops : min= 1, max= 21, avg= 5.15, stdev= 4.28, samples=117 write: IOPS=6, BW=96.7KiB/s (99.0kB/s)(6544KiB/67669msec); 0 zone resets clat (msec): min=39, max=386, avg=132.73, stdev=64.49 lat (msec): min=39, max=386, avg=132.73, stdev=64.49 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 133], | 70.00th=[ 150], 80.00th=[ 178], 90.00th=[ 218], 95.00th=[ 262], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 31, max= 253, per=26.57%, avg=98.84, stdev=43.23, samples=129 iops : min= 1, max= 15, avg= 5.36, stdev= 2.73, samples=129 lat (msec) : 10=2.60%, 20=14.97%, 50=21.74%, 100=23.83%, 250=33.59% lat (msec) : 500=3.26% cpu : usr=0.04%, sys=1.24%, ctx=1314, 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=145033: Fri Oct 2 03:15:02 2026 read: IOPS=6, BW=96.4KiB/s (98.8kB/s)(6256KiB/64867msec) clat (msec): min=7, max=540, avg=35.21, stdev=41.54 lat (msec): min=7, max=540, avg=35.21, stdev=41.54 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 33], 80.00th=[ 44], 90.00th=[ 70], 95.00th=[ 109], | 99.00th=[ 174], 99.50th=[ 266], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 30, max= 381, per=28.90%, avg=102.00, stdev=74.73, samples=121 iops : min= 1, max= 23, avg= 5.56, stdev= 4.72, samples=121 write: IOPS=5, BW=92.0KiB/s (95.2kB/s)(6032KiB/64867msec); 0 zone resets clat (msec): min=50, max=373, avg=135.35, stdev=59.27 lat (msec): min=50, max=373, avg=135.35, stdev=59.27 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 85], | 30.00th=[ 96], 40.00th=[ 108], 50.00th=[ 121], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 182], 90.00th=[ 215], 95.00th=[ 255], | 99.00th=[ 313], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 31, max= 191, per=25.07%, avg=93.28, stdev=40.78, samples=127 iops : min= 1, max= 11, avg= 5.02, stdev= 2.55, samples=127 lat (msec) : 10=2.73%, 20=18.10%, 50=21.09%, 100=22.01%, 250=32.94% lat (msec) : 500=2.99%, 750=0.13% cpu : usr=0.06%, sys=1.31%, ctx=1326, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145034: Fri Oct 2 03:15:02 2026 read: IOPS=5, BW=90.9KiB/s (93.1kB/s)(6032KiB/66338msec) clat (msec): min=5, max=390, avg=36.90, stdev=37.24 lat (msec): min=5, max=390, avg=36.90, stdev=37.24 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 46], 90.00th=[ 79], 95.00th=[ 125], | 99.00th=[ 163], 99.50th=[ 186], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 30, max= 287, per=28.64%, avg=101.09, stdev=63.45, samples=116 iops : min= 1, max= 17, avg= 5.51, stdev= 3.99, samples=116 write: IOPS=5, BW=94.3KiB/s (96.6kB/s)(6256KiB/66338msec); 0 zone resets clat (msec): min=44, max=357, avg=133.53, stdev=61.86 lat (msec): min=44, max=357, avg=133.54, stdev=61.86 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 72], 20.00th=[ 83], | 30.00th=[ 96], 40.00th=[ 109], 50.00th=[ 121], 60.00th=[ 132], | 70.00th=[ 148], 80.00th=[ 169], 90.00th=[ 220], 95.00th=[ 266], | 99.00th=[ 342], 99.50th=[ 347], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 31, max= 192, per=25.44%, avg=94.63, stdev=42.17, samples=129 iops : min= 1, max= 12, avg= 5.09, stdev= 2.67, samples=129 lat (msec) : 10=2.47%, 20=13.93%, 50=24.22%, 100=22.14%, 250=33.46% lat (msec) : 500=3.78% cpu : usr=0.05%, sys=1.34%, ctx=1378, 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=354KiB/s (362kB/s), 84.9KiB/s-96.4KiB/s (86.9kB/s-98.8kB/s), io=23.4MiB (24.5MB), run=64867-67669msec WRITE: bw=372KiB/s (381kB/s), 92.0KiB/s-96.7KiB/s (95.2kB/s-99.0kB/s), io=24.6MiB (25.8MB), run=64867-67669msec 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=145057: Fri Oct 2 03:15:17 2026 read: IOPS=2, BW=2271KiB/s (2325kB/s)(7168KiB/3157msec) clat (usec): min=521, max=358621, avg=220031.79, stdev=129888.18 lat (usec): min=522, max=358623, avg=220033.41, stdev=129888.34 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[154141], | 30.00th=[162530], 40.00th=[162530], 50.00th=[196084], 60.00th=[333448], | 70.00th=[333448], 80.00th=[333448], 90.00th=[358613], 95.00th=[358613], | 99.00th=[358613], 99.50th=[358613], 99.90th=[358613], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 1434, max= 4071, per=79.40%, avg=3184.00, stdev=1515.59, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1622KiB/s (1661kB/s)(5120KiB/3157msec); 0 zone resets clat (msec): min=210, max=340, avg=276.84, stdev=55.61 lat (msec): min=210, max=340, avg=276.98, stdev=55.64 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 211], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 255], 60.00th=[ 255], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 2023, max= 4079, per=48.34%, avg=2713.67, stdev=1182.44, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=41.67%, 500=50.00% cpu : usr=0.00%, sys=13.40%, ctx=220, 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=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=145058: Fri Oct 2 03:15:17 2026 read: IOPS=0, BW=521KiB/s (534kB/s)(2048KiB/3929msec) clat (msec): min=3, max=228, avg=116.31, stdev=158.91 lat (msec): min=3, max=228, avg=116.31, stdev=158.91 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 4], | 30.00th=[ 4], 40.00th=[ 4], 50.00th=[ 4], 60.00th=[ 230], | 70.00th=[ 230], 80.00th=[ 230], 90.00th=[ 230], 95.00th=[ 230], | 99.00th=[ 230], 99.50th=[ 230], 99.90th=[ 230], 99.95th=[ 230], | 99.99th=[ 230] bw ( KiB/s): min= 1695, max= 2039, per=46.56%, avg=1867.00, stdev=243.24, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2606KiB/s (2669kB/s)(10.0MiB/3929msec); 0 zone resets clat (msec): min=126, max=912, avg=361.51, stdev=258.82 lat (msec): min=126, max=912, avg=361.77, stdev=258.72 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 150], | 30.00th=[ 174], 40.00th=[ 184], 50.00th=[ 236], 60.00th=[ 268], | 70.00th=[ 384], 80.00th=[ 584], 90.00th=[ 600], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 2035, max= 6059, per=57.78%, avg=3243.80, stdev=1798.25, samples=5 iops : min= 1, max= 5, avg= 2.20, stdev= 1.79, samples=5 lat (msec) : 4=8.33%, 250=50.00%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=14.43%, ctx=189, 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=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=145059: Fri Oct 2 03:15:17 2026 read: IOPS=1, BW=1203KiB/s (1232kB/s)(6144KiB/5107msec) clat (usec): min=491, max=379921, avg=212556.10, stdev=124088.37 lat (usec): min=492, max=379922, avg=212557.21, stdev=124088.16 clat percentiles (usec): | 1.00th=[ 490], 5.00th=[ 490], 10.00th=[ 490], 20.00th=[179307], | 30.00th=[179307], 40.00th=[223347], 50.00th=[223347], 60.00th=[229639], | 70.00th=[263193], 80.00th=[263193], 90.00th=[379585], 95.00th=[379585], | 99.00th=[379585], 99.50th=[379585], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 2019, max= 2048, per=50.75%, avg=2035.25, stdev=12.12, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1203KiB/s (1232kB/s)(6144KiB/5107msec); 0 zone resets clat (msec): min=174, max=1549, avg=592.39, stdev=593.95 lat (msec): min=175, max=1550, avg=592.63, stdev=594.17 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 245], 50.00th=[ 245], 60.00th=[ 266], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1552], 95.00th=[ 1552], | 99.00th=[ 1552], 99.50th=[ 1552], 99.90th=[ 1552], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 1648, max= 2048, per=34.83%, avg=1955.40, stdev=172.24, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (usec) : 500=8.33% lat (msec) : 250=50.00%, 500=25.00%, 2000=16.67% cpu : usr=0.00%, sys=9.42%, ctx=260, 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=145060: Fri Oct 2 03:15:17 2026 read: IOPS=1, BW=1455KiB/s (1490kB/s)(5120KiB/3518msec) clat (usec): min=1335, max=319887, avg=167195.22, stdev=155263.31 lat (usec): min=1336, max=319888, avg=167196.56, stdev=155263.35 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1336], 10.00th=[ 1336], 20.00th=[ 1336], | 30.00th=[ 4948], 40.00th=[ 4948], 50.00th=[210764], 60.00th=[210764], | 70.00th=[299893], 80.00th=[299893], 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= 4079, max= 4079, per=100.00%, avg=4079.00, stdev= 0.00, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2038KiB/s (2086kB/s)(7168KiB/3518msec); 0 zone resets clat (msec): min=127, max=699, avg=370.17, stdev=185.70 lat (msec): min=127, max=701, avg=370.48, stdev=186.15 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 279], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 292], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 489], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1381, max= 4071, per=41.14%, avg=2309.80, stdev=1024.16, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 10=8.33%, 250=16.67%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=13.59%, ctx=205, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4010KiB/s (4106kB/s), 521KiB/s-2271KiB/s (534kB/s-2325kB/s), io=20.0MiB (20.0MB), run=3157-5107msec WRITE: bw=5614KiB/s (5749kB/s), 1203KiB/s-2606KiB/s (1232kB/s-2669kB/s), io=28.0MiB (29.4MB), run=3157-5107msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145061: Fri Oct 2 03:15:18 2026 read: IOPS=1, BW=1361KiB/s (1394kB/s)(7168KiB/5266msec) clat (msec): min=101, max=1253, avg=421.31, stdev=460.26 lat (msec): min=101, max=1253, avg=421.31, stdev=460.26 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 102], 10.00th=[ 102], 20.00th=[ 124], | 30.00th=[ 140], 40.00th=[ 140], 50.00th=[ 169], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 894], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 2015, max= 4055, per=65.04%, avg=2438.20, stdev=903.89, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=972KiB/s (996kB/s)(5120KiB/5266msec); 0 zone resets clat (msec): min=256, max=434, avg=334.80, stdev=64.12 lat (msec): min=256, max=434, avg=334.94, stdev=64.10 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 330], 60.00th=[ 330], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 435], 95.00th=[ 435], | 99.00th=[ 435], 99.50th=[ 435], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 1973, max= 4071, per=48.08%, avg=2523.50, stdev=1031.99, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=33.33%, 500=50.00%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.68%, ctx=97, 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=145062: Fri Oct 2 03:15:18 2026 read: IOPS=0, BW=375KiB/s (384kB/s)(2048KiB/5462msec) clat (msec): min=290, max=338, avg=314.74, stdev=34.04 lat (msec): min=290, max=338, avg=314.74, stdev=34.04 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 338], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1514, max= 2027, per=47.23%, avg=1770.50, stdev=362.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1875KiB/s (1920kB/s)(10.0MiB/5462msec); 0 zone resets clat (msec): min=204, max=993, avg=457.23, stdev=236.32 lat (msec): min=204, max=993, avg=457.37, stdev=236.34 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 284], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 338], 60.00th=[ 342], | 70.00th=[ 506], 80.00th=[ 567], 90.00th=[ 676], 95.00th=[ 995], | 99.00th=[ 995], 99.50th=[ 995], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 2011, max= 4071, per=49.67%, avg=2607.00, stdev=986.55, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=8.33%, 500=58.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.90%, ctx=91, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145063: Fri Oct 2 03:15:18 2026 read: IOPS=1, BW=1285KiB/s (1316kB/s)(6144KiB/4782msec) clat (msec): min=64, max=473, avg=240.15, stdev=140.96 lat (msec): min=64, max=473, avg=240.16, stdev=140.96 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 65], 10.00th=[ 65], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 215], 50.00th=[ 215], 60.00th=[ 220], | 70.00th=[ 313], 80.00th=[ 313], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] bw ( KiB/s): min= 2035, max= 4087, per=90.49%, avg=3392.33, stdev=1175.59, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1285KiB/s (1316kB/s)(6144KiB/4782msec); 0 zone resets clat (msec): min=277, max=916, avg=543.46, stdev=297.77 lat (msec): min=277, max=916, avg=543.65, stdev=297.68 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 485], | 70.00th=[ 911], 80.00th=[ 911], 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= 1973, max= 2896, per=41.71%, avg=2189.20, stdev=395.88, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=50.00%, 1000=16.67% cpu : usr=0.00%, sys=3.76%, ctx=81, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145064: Fri Oct 2 03:15:18 2026 read: IOPS=0, BW=968KiB/s (991kB/s)(5120KiB/5291msec) clat (msec): min=96, max=672, avg=332.05, stdev=213.70 lat (msec): min=96, max=672, avg=332.05, stdev=213.70 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 97], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 1973, max= 4071, per=71.76%, avg=2690.33, stdev=1196.00, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1355KiB/s (1387kB/s)(7168KiB/5291msec); 0 zone resets clat (msec): min=125, max=1022, avg=480.63, stdev=325.29 lat (msec): min=126, max=1022, avg=480.76, stdev=325.30 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 220], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 401], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 693], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 2011, max= 6047, per=54.03%, avg=2835.80, stdev=1795.16, samples=5 iops : min= 1, max= 5, avg= 1.80, stdev= 1.79, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.08%, ctx=75, 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=3750KiB/s (3840kB/s), 375KiB/s-1361KiB/s (384kB/s-1394kB/s), io=20.0MiB (20.0MB), run=4782-5462msec WRITE: bw=5249KiB/s (5375kB/s), 972KiB/s-1875KiB/s (996kB/s-1920kB/s), io=28.0MiB (29.4MB), run=4782-5462msec 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=145072: Fri Oct 2 03:15:34 2026 read: IOPS=0, BW=2932KiB/s (3002kB/s)(12.0MiB/4191msec) clat (msec): min=919, max=1891, avg=1327.71, stdev=504.10 lat (msec): min=919, max=1891, avg=1327.71, stdev=504.10 clat percentiles (msec): | 1.00th=[ 919], 5.00th=[ 919], 10.00th=[ 919], 20.00th=[ 919], | 30.00th=[ 919], 40.00th=[ 1167], 50.00th=[ 1167], 60.00th=[ 1167], | 70.00th=[ 1888], 80.00th=[ 1888], 90.00th=[ 1888], 95.00th=[ 1888], | 99.00th=[ 1888], 99.50th=[ 1888], 99.90th=[ 1888], 99.95th=[ 1888], | 99.99th=[ 1888] bw ( KiB/s): min= 8078, max= 8143, per=100.00%, avg=8110.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=8.42%, ctx=676, 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=145073: Fri Oct 2 03:15:34 2026 read: IOPS=0, BW=806KiB/s (825kB/s)(4096KiB/5082msec) clat (nsec): min=314578k, max=314578k, avg=314577617.00, stdev= 0.00 lat (nsec): min=314580k, max=314580k, avg=314579807.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 7185, max= 7185, per=100.00%, avg=7185.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1612KiB/s (1651kB/s)(8192KiB/5082msec); 0 zone resets clat (msec): min=1911, max=2755, avg=2333.34, stdev=596.51 lat (msec): min=1912, max=2755, avg=2333.78, stdev=596.41 clat percentiles (msec): | 1.00th=[ 1905], 5.00th=[ 1905], 10.00th=[ 1905], 20.00th=[ 1905], | 30.00th=[ 1905], 40.00th=[ 1905], 50.00th=[ 1905], 60.00th=[ 2769], | 70.00th=[ 2769], 80.00th=[ 2769], 90.00th=[ 2769], 95.00th=[ 2769], | 99.00th=[ 2769], 99.50th=[ 2769], 99.90th=[ 2769], 99.95th=[ 2769], | 99.99th=[ 2769] bw ( KiB/s): min= 8094, max= 8094, per=100.00%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=2.91%, ctx=131, 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=145074: Fri Oct 2 03:15:34 2026 write: IOPS=0, BW=2534KiB/s (2594kB/s)(12.0MiB/4850msec); 0 zone resets clat (msec): min=1075, max=2480, avg=1592.92, stdev=772.45 lat (msec): min=1077, max=2481, avg=1593.98, stdev=772.37 clat percentiles (msec): | 1.00th=[ 1083], 5.00th=[ 1083], 10.00th=[ 1083], 20.00th=[ 1083], | 30.00th=[ 1083], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 2467], 80.00th=[ 2467], 90.00th=[ 2467], 95.00th=[ 2467], | 99.00th=[ 2467], 99.50th=[ 2467], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] 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) : 2000=66.67%, >=2000=33.33% cpu : usr=0.04%, sys=2.29%, ctx=37, 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=145076: Fri Oct 2 03:15:34 2026 write: IOPS=0, BW=3250KiB/s (3328kB/s)(12.0MiB/3781msec); 0 zone resets clat (msec): min=612, max=2293, avg=1213.47, stdev=937.55 lat (msec): min=612, max=2300, avg=1215.85, stdev=941.05 clat percentiles (msec): | 1.00th=[ 609], 5.00th=[ 609], 10.00th=[ 609], 20.00th=[ 609], | 30.00th=[ 609], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 70.00th=[ 2299], 80.00th=[ 2299], 90.00th=[ 2299], 95.00th=[ 2299], | 99.00th=[ 2299], 99.50th=[ 2299], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 8094, max= 8126, per=100.00%, avg=8110.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.70%, ctx=69, 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=3224KiB/s (3301kB/s), 806KiB/s-2932KiB/s (825kB/s-3002kB/s), io=16.0MiB (16.8MB), run=4191-5082msec WRITE: bw=6448KiB/s (6603kB/s), 1612KiB/s-3250KiB/s (1651kB/s-3328kB/s), io=32.0MiB (33.6MB), run=3781-5082msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145075: Fri Oct 2 03:15:35 2026 read: IOPS=0, BW=2935KiB/s (3005kB/s)(12.0MiB/4187msec) clat (msec): min=523, max=2060, avg=1356.25, stdev=776.37 lat (msec): min=523, max=2060, avg=1356.25, stdev=776.37 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 2056], 80.00th=[ 2056], 90.00th=[ 2056], 95.00th=[ 2056], | 99.00th=[ 2056], 99.50th=[ 2056], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7892, max= 8159, per=100.00%, avg=8025.50, stdev=188.80, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.89%, ctx=43, 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=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=145077: Fri Oct 2 03:15:35 2026 read: IOPS=0, BW=772KiB/s (790kB/s)(4096KiB/5308msec) clat (nsec): min=2222.2M, max=2222.2M, avg=2222211194.00, stdev= 0.00 lat (nsec): min=2222.2M, max=2222.2M, avg=2222213854.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2232], 5.00th=[ 2232], 10.00th=[ 2232], 20.00th=[ 2232], | 30.00th=[ 2232], 40.00th=[ 2232], 50.00th=[ 2232], 60.00th=[ 2232], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 7892, max= 7892, per=100.00%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1543KiB/s (1580kB/s)(8192KiB/5308msec); 0 zone resets clat (msec): min=776, max=2244, avg=1510.36, stdev=1037.53 lat (msec): min=777, max=2244, avg=1510.79, stdev=1037.36 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 2232], | 70.00th=[ 2232], 80.00th=[ 2232], 90.00th=[ 2232], 95.00th=[ 2232], | 99.00th=[ 2232], 99.50th=[ 2232], 99.90th=[ 2232], 99.95th=[ 2232], | 99.99th=[ 2232] bw ( KiB/s): min= 8078, max= 8078, per=100.00%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, >=2000=66.67% cpu : usr=0.00%, sys=2.11%, ctx=49, 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=145078: Fri Oct 2 03:15:35 2026 write: IOPS=0, BW=2401KiB/s (2459kB/s)(12.0MiB/5118msec); 0 zone resets clat (msec): min=384, max=2842, avg=1672.00, stdev=1233.13 lat (msec): min=384, max=2842, avg=1672.39, stdev=1233.21 clat percentiles (msec): | 1.00th=[ 384], 5.00th=[ 384], 10.00th=[ 384], 20.00th=[ 384], | 30.00th=[ 384], 40.00th=[ 1787], 50.00th=[ 1787], 60.00th=[ 1787], | 70.00th=[ 2836], 80.00th=[ 2836], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] 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 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.11%, ctx=42, 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=145079: Fri Oct 2 03:15:35 2026 write: IOPS=0, BW=2720KiB/s (2785kB/s)(12.0MiB/4518msec); 0 zone resets clat (msec): min=437, max=2724, avg=1474.17, stdev=1157.98 lat (msec): min=438, max=2724, avg=1474.64, stdev=1157.91 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 439], 10.00th=[ 439], 20.00th=[ 439], | 30.00th=[ 439], 40.00th=[ 1267], 50.00th=[ 1267], 60.00th=[ 1267], | 70.00th=[ 2735], 80.00th=[ 2735], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.04%, ctx=57, 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=3087KiB/s (3161kB/s), 772KiB/s-2935KiB/s (790kB/s-3005kB/s), io=16.0MiB (16.8MB), run=4187-5308msec WRITE: bw=6173KiB/s (6321kB/s), 1543KiB/s-2720KiB/s (1580kB/s-2785kB/s), io=32.0MiB (33.6MB), run=4518-5308msec