== sanity test 398b: DIO and buffer IO race ============== 10:03:01 (1783951381) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.69808 s, 8.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=145639: Mon Jul 13 10:05:30 2026 read: IOPS=11, BW=46.9KiB/s (48.0kB/s)(5992KiB/127724msec) clat (usec): min=35, max=639326, avg=42126.01, stdev=32932.20 lat (usec): min=35, max=639327, avg=42129.45, stdev=32931.74 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 1696], 20.00th=[ 20841], | 30.00th=[ 26870], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 42730], | 70.00th=[ 52167], 80.00th=[ 62653], 90.00th=[ 77071], 95.00th=[ 90702], | 99.00th=[130548], 99.50th=[164627], 99.90th=[354419], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 103, per=25.52%, avg=46.96, stdev=17.87, samples=249 iops : min= 1, max= 25, avg=11.12, stdev= 4.48, samples=249 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(6296KiB/127724msec); 0 zone resets clat (usec): min=1125, max=969453, avg=40741.02, stdev=45712.37 lat (usec): min=1126, max=969454, avg=40751.22, stdev=45713.46 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1549], 10.00th=[ 2442], 20.00th=[ 5276], | 30.00th=[ 9765], 40.00th=[ 20055], 50.00th=[ 30802], 60.00th=[ 41157], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[112722], | 99.00th=[181404], 99.50th=[223347], 99.90th=[258999], 99.95th=[968885], | 99.99th=[968885] bw ( KiB/s): min= 7, max= 102, per=25.46%, avg=49.14, stdev=18.64, samples=250 iops : min= 1, max= 25, avg=11.66, stdev= 4.68, samples=250 lat (usec) : 50=0.55%, 100=3.42%, 250=0.55%, 500=0.16%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=4.30%, 4=3.97%, 10=7.45%, 20=8.85%, 50=38.83% lat (msec) : 100=26.07%, 250=5.60%, 500=0.07%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.61%, ctx=6825, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145640: Mon Jul 13 10:05:30 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(5940KiB/128406msec) clat (usec): min=32, max=879059, avg=42833.50, stdev=36791.54 lat (usec): min=33, max=879061, avg=42838.98, stdev=36791.30 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 9634], 20.00th=[ 21365], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 36439], 60.00th=[ 43779], | 70.00th=[ 52167], 80.00th=[ 63701], 90.00th=[ 79168], 95.00th=[ 92799], | 99.00th=[130548], 99.50th=[164627], 99.90th=[396362], 99.95th=[876610], | 99.99th=[876610] bw ( KiB/s): min= 7, max= 103, per=25.08%, avg=46.14, stdev=19.44, samples=251 iops : min= 1, max= 25, avg=10.90, stdev= 4.87, samples=251 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(6348KiB/128406msec); 0 zone resets clat (usec): min=1127, max=584589, avg=40517.77, stdev=44775.24 lat (usec): min=1129, max=584590, avg=40529.15, stdev=44769.26 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1614], 10.00th=[ 2442], 20.00th=[ 5014], | 30.00th=[ 9372], 40.00th=[ 17957], 50.00th=[ 28443], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[121111], | 99.00th=[181404], 99.50th=[246416], 99.90th=[387974], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 7, max= 111, per=25.55%, avg=49.30, stdev=18.81, samples=251 iops : min= 1, max= 27, avg=11.71, stdev= 4.74, samples=251 lat (usec) : 50=0.42%, 100=3.39%, 250=0.59%, 500=0.13%, 750=0.03% lat (msec) : 2=4.00%, 4=4.62%, 10=7.91%, 20=9.18%, 50=38.51% lat (msec) : 100=25.16%, 250=5.79%, 500=0.20%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.39%, ctx=6793, 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=145641: Mon Jul 13 10:05:30 2026 read: IOPS=11, BW=47.1KiB/s (48.2kB/s)(6028KiB/127935msec) clat (usec): min=27, max=281805, avg=42150.23, stdev=29972.75 lat (usec): min=27, max=281807, avg=42151.90, stdev=29972.67 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 60], 10.00th=[ 1074], 20.00th=[ 20841], | 30.00th=[ 25822], 40.00th=[ 30540], 50.00th=[ 36963], 60.00th=[ 44303], | 70.00th=[ 52167], 80.00th=[ 64226], 90.00th=[ 78119], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[175113], 99.90th=[217056], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 7, max= 107, per=25.57%, avg=47.04, stdev=19.20, samples=249 iops : min= 1, max= 26, avg=11.13, stdev= 4.82, samples=249 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6260KiB/127935msec); 0 zone resets clat (usec): min=1120, max=935552, avg=40818.03, stdev=47772.56 lat (usec): min=1121, max=935555, avg=40826.15, stdev=47770.91 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1631], 10.00th=[ 2474], 20.00th=[ 5014], | 30.00th=[ 9372], 40.00th=[ 19530], 50.00th=[ 29754], 60.00th=[ 40109], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[ 95945], 95.00th=[115868], | 99.00th=[170918], 99.50th=[223347], 99.90th=[624952], 99.95th=[935330], | 99.99th=[935330] bw ( KiB/s): min= 7, max= 103, per=25.34%, avg=48.91, stdev=18.81, samples=248 iops : min= 1, max= 25, avg=11.60, stdev= 4.75, samples=248 lat (usec) : 50=0.52%, 100=3.71%, 250=0.55%, 500=0.10% lat (msec) : 2=3.91%, 4=4.88%, 10=7.26%, 20=8.85%, 50=38.54% lat (msec) : 100=25.78%, 250=5.76%, 500=0.07%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=5.36%, ctx=6714, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145642: Mon Jul 13 10:05:30 2026 read: IOPS=11, BW=46.5KiB/s (47.6kB/s)(6052KiB/130111msec) clat (usec): min=32, max=948691, avg=43754.29, stdev=39190.16 lat (usec): min=32, max=948692, avg=43758.02, stdev=39187.85 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 62], 10.00th=[ 4490], 20.00th=[ 20579], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 38011], 60.00th=[ 44303], | 70.00th=[ 53740], 80.00th=[ 64226], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[154141], 99.50th=[173016], 99.90th=[362808], 99.95th=[952108], | 99.99th=[952108] bw ( KiB/s): min= 7, max= 94, per=25.08%, avg=46.15, stdev=17.53, samples=254 iops : min= 1, max= 23, avg=10.90, stdev= 4.39, samples=254 write: IOPS=11, BW=47.9KiB/s (49.1kB/s)(6236KiB/130111msec); 0 zone resets clat (usec): min=1160, max=396028, avg=40681.22, stdev=41418.11 lat (usec): min=1162, max=396029, avg=40683.88, stdev=41417.94 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1483], 10.00th=[ 2245], 20.00th=[ 5080], | 30.00th=[ 9503], 40.00th=[ 19792], 50.00th=[ 30540], 60.00th=[ 40633], | 70.00th=[ 54264], 80.00th=[ 70779], 90.00th=[ 93848], 95.00th=[117965], | 99.00th=[175113], 99.50th=[210764], 99.90th=[329253], 99.95th=[396362], | 99.99th=[396362] bw ( KiB/s): min= 7, max= 112, per=24.58%, avg=47.43, stdev=19.49, samples=255 iops : min= 1, max= 28, avg=11.22, stdev= 4.91, samples=255 lat (usec) : 50=0.36%, 100=3.68%, 250=0.46%, 500=0.26%, 1000=0.03% lat (msec) : 2=4.62%, 4=3.81%, 10=7.58%, 20=8.92%, 50=36.69% lat (msec) : 100=27.05%, 250=6.28%, 500=0.23%, 1000=0.03% cpu : usr=0.08%, sys=5.46%, ctx=6873, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=185KiB/s (189kB/s), 46.3KiB/s-47.1KiB/s (47.4kB/s-48.2kB/s), io=23.4MiB (24.6MB), run=127724-130111msec WRITE: bw=193KiB/s (198kB/s), 47.9KiB/s-49.4KiB/s (49.1kB/s-50.6kB/s), io=24.6MiB (25.7MB), run=127724-130111msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145644: Mon Jul 13 10:07:52 2026 read: IOPS=5, BW=22.1KiB/s (22.7kB/s)(5992KiB/270857msec) clat (msec): min=5, max=1035, avg=36.04, stdev=43.17 lat (msec): min=5, max=1035, avg=36.04, stdev=43.17 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=[ 48], 90.00th=[ 80], 95.00th=[ 111], | 99.00th=[ 174], 99.50th=[ 226], 99.90th=[ 279], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 103, per=28.58%, avg=25.15, stdev=16.33, samples=461 iops : min= 1, max= 25, avg= 5.67, stdev= 4.13, samples=461 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6296KiB/270857msec); 0 zone resets clat (msec): min=38, max=644, avg=137.67, stdev=64.32 lat (msec): min=38, max=644, avg=137.68, stdev=64.32 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 66], 10.00th=[ 74], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 110], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 224], 95.00th=[ 262], | 99.00th=[ 342], 99.50th=[ 397], 99.90th=[ 542], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 7, max= 48, per=24.84%, avg=22.85, stdev=10.14, samples=531 iops : min= 1, max= 12, avg= 5.08, stdev= 2.59, samples=531 lat (msec) : 10=2.51%, 20=17.42%, 50=19.56%, 100=22.10%, 250=35.19% lat (msec) : 500=3.06%, 750=0.13%, 2000=0.03% cpu : usr=0.04%, sys=1.34%, ctx=5295, 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=145645: Mon Jul 13 10:07:52 2026 read: IOPS=5, BW=21.8KiB/s (22.4kB/s)(5940KiB/271856msec) clat (msec): min=5, max=983, avg=36.31, stdev=44.52 lat (msec): min=5, max=983, avg=36.31, stdev=44.52 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=[ 47], 90.00th=[ 78], 95.00th=[ 111], | 99.00th=[ 192], 99.50th=[ 253], 99.90th=[ 368], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 7, max= 96, per=27.40%, avg=24.12, stdev=16.55, samples=476 iops : min= 1, max= 24, avg= 5.41, stdev= 4.17, samples=476 write: IOPS=5, BW=23.4KiB/s (23.9kB/s)(6348KiB/271856msec); 0 zone resets clat (msec): min=35, max=485, avg=137.23, stdev=61.57 lat (msec): min=35, max=485, avg=137.23, stdev=61.57 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 67], 10.00th=[ 75], 20.00th=[ 89], | 30.00th=[ 99], 40.00th=[ 108], 50.00th=[ 123], 60.00th=[ 138], | 70.00th=[ 157], 80.00th=[ 180], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 342], 99.50th=[ 372], 99.90th=[ 414], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 55, per=24.96%, avg=22.96, stdev=10.15, samples=533 iops : min= 1, max= 13, avg= 5.11, stdev= 2.60, samples=533 lat (msec) : 10=2.51%, 20=17.12%, 50=19.89%, 100=22.07%, 250=34.96% lat (msec) : 500=3.42%, 1000=0.03% cpu : usr=0.05%, sys=1.37%, ctx=5301, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145646: Mon Jul 13 10:07:52 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6028KiB/269246msec) clat (msec): min=5, max=596, avg=36.31, stdev=37.11 lat (msec): min=5, max=596, avg=36.31, stdev=37.11 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 52], 90.00th=[ 81], 95.00th=[ 109], | 99.00th=[ 174], 99.50th=[ 192], 99.90th=[ 321], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 7, max= 96, per=27.71%, avg=24.38, stdev=17.02, samples=477 iops : min= 1, max= 24, avg= 5.47, stdev= 4.29, samples=477 write: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6260KiB/269246msec); 0 zone resets clat (msec): min=41, max=1131, avg=136.98, stdev=66.35 lat (msec): min=41, max=1131, avg=136.99, stdev=66.35 clat percentiles (msec): | 1.00th=[ 55], 5.00th=[ 69], 10.00th=[ 77], 20.00th=[ 89], | 30.00th=[ 99], 40.00th=[ 109], 50.00th=[ 122], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 218], 95.00th=[ 253], | 99.00th=[ 359], 99.50th=[ 422], 99.90th=[ 489], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 55, per=25.10%, avg=23.10, stdev=10.05, samples=522 iops : min= 1, max= 13, avg= 5.15, stdev= 2.57, samples=522 lat (msec) : 10=2.34%, 20=17.55%, 50=19.53%, 100=22.82%, 250=34.80% lat (msec) : 500=2.90%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.33%, ctx=5221, 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=145647: Mon Jul 13 10:07:52 2026 read: IOPS=5, BW=22.3KiB/s (22.9kB/s)(6052KiB/271066msec) clat (msec): min=6, max=301, avg=35.56, stdev=34.91 lat (msec): min=6, max=301, avg=35.57, stdev=34.91 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 23], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 79], 95.00th=[ 112], | 99.00th=[ 176], 99.50th=[ 207], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 7, max= 95, per=28.99%, avg=25.51, stdev=16.29, samples=459 iops : min= 1, max= 23, avg= 5.75, stdev= 4.12, samples=459 write: IOPS=5, BW=23.0KiB/s (23.6kB/s)(6236KiB/271066msec); 0 zone resets clat (msec): min=47, max=1128, avg=139.25, stdev=69.51 lat (msec): min=47, max=1128, avg=139.26, stdev=69.51 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 68], 10.00th=[ 78], 20.00th=[ 88], | 30.00th=[ 100], 40.00th=[ 111], 50.00th=[ 123], 60.00th=[ 134], | 70.00th=[ 153], 80.00th=[ 182], 90.00th=[ 228], 95.00th=[ 268], | 99.00th=[ 359], 99.50th=[ 405], 99.90th=[ 642], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 48, per=24.71%, avg=22.73, stdev= 9.90, samples=528 iops : min= 1, max= 12, avg= 5.06, stdev= 2.53, samples=528 lat (msec) : 10=2.31%, 20=17.90%, 50=19.47%, 100=22.23%, 250=34.60% lat (msec) : 500=3.35%, 750=0.10%, 2000=0.03% cpu : usr=0.05%, sys=1.33%, ctx=5294, 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=88.3KiB/s (90.4kB/s), 21.8KiB/s-22.4KiB/s (22.4kB/s-22.9kB/s), io=23.4MiB (24.6MB), run=269246-271856msec WRITE: bw=92.5KiB/s (94.7kB/s), 23.0KiB/s-23.4KiB/s (23.6kB/s-23.9kB/s), io=24.6MiB (25.7MB), run=269246-271856msec 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=145706: Mon Jul 13 10:08:35 2026 read: IOPS=11, BW=186KiB/s (191kB/s)(5920KiB/31744msec) clat (usec): min=35, max=664227, avg=42807.78, stdev=47868.82 lat (usec): min=36, max=664229, avg=42811.61, stdev=47869.53 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 57], 10.00th=[ 61], 20.00th=[ 98], | 30.00th=[ 23725], 40.00th=[ 30278], 50.00th=[ 39060], 60.00th=[ 44827], | 70.00th=[ 54789], 80.00th=[ 63177], 90.00th=[ 82314], 95.00th=[ 99091], | 99.00th=[166724], 99.50th=[270533], 99.90th=[666895], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 30, max= 446, per=24.64%, avg=185.77, stdev=79.83, samples=62 iops : min= 1, max= 27, avg=10.81, stdev= 5.03, samples=62 write: IOPS=12, BW=201KiB/s (205kB/s)(6368KiB/31744msec); 0 zone resets clat (usec): min=1504, max=275416, avg=39778.00, stdev=44423.39 lat (usec): min=1505, max=275418, avg=39779.97, stdev=44423.47 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1860], 10.00th=[ 2147], 20.00th=[ 5669], | 30.00th=[ 9372], 40.00th=[ 13566], 50.00th=[ 23725], 60.00th=[ 34341], | 70.00th=[ 52691], 80.00th=[ 69731], 90.00th=[ 96994], 95.00th=[131597], | 99.00th=[221250], 99.50th=[267387], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 410, per=25.23%, avg=200.10, stdev=78.51, samples=62 iops : min= 1, max= 25, avg=11.73, stdev= 4.96, samples=62 lat (usec) : 50=1.30%, 100=8.33%, 250=0.65% lat (msec) : 2=5.08%, 4=3.52%, 10=8.72%, 20=9.11%, 50=30.60% lat (msec) : 100=26.04%, 250=5.99%, 500=0.52%, 750=0.13% cpu : usr=0.06%, sys=5.25%, ctx=1506, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145707: Mon Jul 13 10:08:35 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(5744KiB/31455msec) clat (usec): min=37, max=652936, avg=44098.15, stdev=46338.54 lat (usec): min=38, max=652938, avg=44100.44, stdev=46337.50 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 57], 10.00th=[ 63], 20.00th=[ 16319], | 30.00th=[ 26870], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 46924], | 70.00th=[ 54789], 80.00th=[ 63701], 90.00th=[ 80217], 95.00th=[ 94897], | 99.00th=[202376], 99.50th=[254804], 99.90th=[650118], 99.95th=[650118], | 99.99th=[650118] bw ( KiB/s): min= 31, max= 350, per=24.26%, avg=182.89, stdev=80.86, samples=61 iops : min= 1, max= 21, avg=10.62, stdev= 5.05, samples=61 write: IOPS=13, BW=208KiB/s (213kB/s)(6544KiB/31455msec); 0 zone resets clat (usec): min=1619, max=304262, avg=38127.07, stdev=42546.75 lat (usec): min=1619, max=304265, avg=38129.79, stdev=42546.92 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2114], 10.00th=[ 3425], 20.00th=[ 5342], | 30.00th=[ 8848], 40.00th=[ 13042], 50.00th=[ 24249], 60.00th=[ 34866], | 70.00th=[ 47449], 80.00th=[ 65799], 90.00th=[ 90702], 95.00th=[123208], | 99.00th=[189793], 99.50th=[212861], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 31, max= 462, per=26.58%, avg=210.80, stdev=91.29, samples=60 iops : min= 1, max= 28, avg=12.38, stdev= 5.72, samples=60 lat (usec) : 50=1.17%, 100=7.16%, 250=0.26%, 1000=0.13% lat (msec) : 2=2.60%, 4=4.30%, 10=11.33%, 20=9.64%, 50=30.99% lat (msec) : 100=26.30%, 250=5.73%, 500=0.26%, 750=0.13% cpu : usr=0.07%, sys=5.62%, ctx=1444, 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=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=145708: Mon Jul 13 10:08:35 2026 read: IOPS=12, BW=201KiB/s (205kB/s)(6256KiB/31194msec) clat (usec): min=37, max=411844, avg=43221.43, stdev=39992.21 lat (usec): min=37, max=411845, avg=43222.65, stdev=39992.18 clat percentiles (usec): | 1.00th=[ 41], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 143], | 30.00th=[ 25297], 40.00th=[ 31327], 50.00th=[ 37487], 60.00th=[ 49021], | 70.00th=[ 56361], 80.00th=[ 64750], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[164627], 99.50th=[244319], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 31, max= 383, per=26.73%, avg=201.54, stdev=85.14, samples=61 iops : min= 1, max= 23, avg=11.79, stdev= 5.33, samples=61 write: IOPS=12, BW=193KiB/s (198kB/s)(6032KiB/31194msec); 0 zone resets clat (usec): min=1541, max=562562, avg=37701.94, stdev=49048.74 lat (usec): min=1543, max=562562, avg=37706.98, stdev=49049.27 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1926], 10.00th=[ 2376], 20.00th=[ 4883], | 30.00th=[ 7767], 40.00th=[ 11994], 50.00th=[ 23725], 60.00th=[ 31589], | 70.00th=[ 44827], 80.00th=[ 64750], 90.00th=[ 87557], 95.00th=[127402], | 99.00th=[191890], 99.50th=[221250], 99.90th=[566232], 99.95th=[566232], | 99.99th=[566232] bw ( KiB/s): min= 31, max= 538, per=24.24%, avg=192.23, stdev=95.33, samples=61 iops : min= 1, max= 33, avg=11.21, stdev= 6.03, samples=61 lat (usec) : 50=1.17%, 100=8.46%, 250=0.78%, 500=0.52%, 750=0.13% lat (msec) : 2=3.52%, 4=5.47%, 10=9.64%, 20=5.99%, 50=31.25% lat (msec) : 100=26.43%, 250=6.38%, 500=0.13%, 750=0.13% cpu : usr=0.04%, sys=5.28%, ctx=1488, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145709: Mon Jul 13 10:08:35 2026 read: IOPS=12, BW=195KiB/s (199kB/s)(6032KiB/30988msec) clat (usec): min=36, max=416071, avg=43191.31, stdev=41415.97 lat (usec): min=37, max=416072, avg=43258.39, stdev=41438.73 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 55], 10.00th=[ 60], 20.00th=[ 82], | 30.00th=[ 25035], 40.00th=[ 31589], 50.00th=[ 39584], 60.00th=[ 45876], | 70.00th=[ 54789], 80.00th=[ 69731], 90.00th=[ 84411], 95.00th=[106431], | 99.00th=[164627], 99.50th=[274727], 99.90th=[417334], 99.95th=[417334], | 99.99th=[417334] bw ( KiB/s): min= 30, max= 574, per=25.74%, avg=194.05, stdev=96.10, samples=60 iops : min= 1, max= 35, avg=11.32, stdev= 6.02, samples=60 write: IOPS=12, BW=202KiB/s (207kB/s)(6256KiB/30988msec); 0 zone resets clat (usec): min=1448, max=246761, avg=37453.77, stdev=44909.91 lat (usec): min=1450, max=246763, avg=37456.06, stdev=44909.75 clat percentiles (usec): | 1.00th=[ 1647], 5.00th=[ 1909], 10.00th=[ 2540], 20.00th=[ 4178], | 30.00th=[ 6915], 40.00th=[ 10028], 50.00th=[ 16909], 60.00th=[ 31327], | 70.00th=[ 44303], 80.00th=[ 68682], 90.00th=[100140], 95.00th=[114820], | 99.00th=[221250], 99.50th=[242222], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 31, max= 378, per=25.58%, avg=202.87, stdev=88.46, samples=60 iops : min= 1, max= 23, avg=11.90, stdev= 5.58, samples=60 lat (usec) : 50=1.43%, 100=9.38%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=3.39%, 4=7.16%, 10=10.68%, 20=7.03%, 50=28.78% lat (msec) : 100=23.57%, 250=7.81%, 500=0.26% cpu : usr=0.07%, sys=5.32%, ctx=1437, 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=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=755KiB/s (773kB/s), 183KiB/s-201KiB/s (187kB/s-205kB/s), io=23.4MiB (24.5MB), run=30988-31744msec WRITE: bw=794KiB/s (813kB/s), 193KiB/s-208KiB/s (198kB/s-213kB/s), io=24.6MiB (25.8MB), run=30988-31744msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145701: Mon Jul 13 10:09:13 2026 read: IOPS=5, BW=84.0KiB/s (86.0kB/s)(5920KiB/70449msec) clat (msec): min=7, max=385, avg=39.26, stdev=47.75 lat (msec): min=7, max=385, avg=39.26, stdev=47.75 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 21], 50.00th=[ 23], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 44], 90.00th=[ 79], 95.00th=[ 136], | 99.00th=[ 288], 99.50th=[ 338], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 31, max= 378, per=28.61%, avg=96.98, stdev=63.25, samples=120 iops : min= 1, max= 23, avg= 5.34, stdev= 4.02, samples=120 write: IOPS=5, BW=90.4KiB/s (92.6kB/s)(6368KiB/70449msec); 0 zone resets clat (msec): min=45, max=607, avg=140.34, stdev=77.41 lat (msec): min=45, max=607, avg=140.34, stdev=77.41 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 74], 20.00th=[ 87], | 30.00th=[ 96], 40.00th=[ 105], 50.00th=[ 115], 60.00th=[ 128], | 70.00th=[ 148], 80.00th=[ 182], 90.00th=[ 253], 95.00th=[ 309], | 99.00th=[ 426], 99.50th=[ 523], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 30, max= 192, per=25.74%, avg=91.88, stdev=43.82, samples=136 iops : min= 1, max= 12, avg= 4.99, stdev= 2.87, samples=136 lat (msec) : 10=1.17%, 20=16.54%, 50=21.74%, 100=24.22%, 250=30.60% lat (msec) : 500=5.47%, 750=0.26% cpu : usr=0.04%, sys=1.31%, ctx=1371, 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=145702: Mon Jul 13 10:09:13 2026 read: IOPS=5, BW=81.5KiB/s (83.5kB/s)(5744KiB/70473msec) clat (msec): min=6, max=329, avg=36.63, stdev=36.34 lat (msec): min=6, max=329, avg=36.63, stdev=36.34 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 78], 95.00th=[ 112], | 99.00th=[ 174], 99.50th=[ 232], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 31, max= 316, per=29.86%, avg=101.22, stdev=63.68, samples=111 iops : min= 1, max= 19, avg= 5.61, stdev= 4.08, samples=111 write: IOPS=5, BW=92.9KiB/s (95.1kB/s)(6544KiB/70473msec); 0 zone resets clat (msec): min=49, max=733, avg=139.71, stdev=77.84 lat (msec): min=49, max=733, avg=139.71, stdev=77.84 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 67], 10.00th=[ 78], 20.00th=[ 85], | 30.00th=[ 95], 40.00th=[ 105], 50.00th=[ 113], 60.00th=[ 128], | 70.00th=[ 148], 80.00th=[ 190], 90.00th=[ 236], 95.00th=[ 292], | 99.00th=[ 397], 99.50th=[ 435], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 30, max= 191, per=26.58%, avg=94.89, stdev=42.93, samples=135 iops : min= 1, max= 11, avg= 5.19, stdev= 2.81, samples=135 lat (msec) : 10=0.78%, 20=16.67%, 50=20.31%, 100=24.22%, 250=33.20% lat (msec) : 500=4.56%, 750=0.26% cpu : usr=0.03%, sys=1.28%, ctx=1323, 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=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=145703: Mon Jul 13 10:09:13 2026 read: IOPS=5, BW=93.9KiB/s (96.2kB/s)(6256KiB/66618msec) clat (msec): min=7, max=385, avg=36.84, stdev=39.42 lat (msec): min=7, max=385, avg=36.88, stdev=39.42 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 79], 95.00th=[ 124], | 99.00th=[ 213], 99.50th=[ 241], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 31, max= 320, per=30.93%, avg=104.84, stdev=73.16, samples=118 iops : min= 1, max= 20, avg= 5.81, stdev= 4.70, samples=118 write: IOPS=5, BW=90.5KiB/s (92.7kB/s)(6032KiB/66618msec); 0 zone resets clat (msec): min=44, max=750, avg=138.04, stdev=74.51 lat (msec): min=44, max=750, avg=138.04, stdev=74.51 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 64], 10.00th=[ 74], 20.00th=[ 84], | 30.00th=[ 96], 40.00th=[ 103], 50.00th=[ 116], 60.00th=[ 129], | 70.00th=[ 153], 80.00th=[ 186], 90.00th=[ 236], 95.00th=[ 279], | 99.00th=[ 363], 99.50th=[ 422], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 31, max= 192, per=26.23%, avg=93.63, stdev=42.24, samples=127 iops : min= 1, max= 12, avg= 5.11, stdev= 2.76, samples=127 lat (msec) : 10=1.82%, 20=18.62%, 50=21.48%, 100=24.22%, 250=29.56% lat (msec) : 500=4.17%, 1000=0.13% cpu : usr=0.04%, sys=1.27%, ctx=1383, 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=145704: Mon Jul 13 10:09:13 2026 read: IOPS=5, BW=85.5KiB/s (87.6kB/s)(6032KiB/70529msec) clat (msec): min=7, max=349, avg=38.98, stdev=44.96 lat (msec): min=7, max=349, avg=38.99, stdev=44.96 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 34], 80.00th=[ 45], 90.00th=[ 84], 95.00th=[ 134], | 99.00th=[ 228], 99.50th=[ 342], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 31, max= 287, per=30.02%, avg=101.76, stdev=66.25, samples=115 iops : min= 1, max= 17, avg= 5.63, stdev= 4.21, samples=115 write: IOPS=5, BW=88.7KiB/s (90.8kB/s)(6256KiB/70529msec); 0 zone resets clat (msec): min=40, max=550, avg=142.30, stdev=77.68 lat (msec): min=40, max=550, avg=142.30, stdev=77.68 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 77], 20.00th=[ 88], | 30.00th=[ 95], 40.00th=[ 106], 50.00th=[ 116], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 251], 95.00th=[ 288], | 99.00th=[ 451], 99.50th=[ 472], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 186, per=25.33%, avg=90.41, stdev=43.27, samples=135 iops : min= 1, max= 11, avg= 4.90, stdev= 2.84, samples=135 lat (msec) : 10=1.69%, 20=16.93%, 50=21.48%, 100=22.92%, 250=31.51% lat (msec) : 500=5.34%, 750=0.13% cpu : usr=0.04%, sys=1.32%, ctx=1368, 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=340KiB/s (348kB/s), 81.5KiB/s-93.9KiB/s (83.5kB/s-96.2kB/s), io=23.4MiB (24.5MB), run=66618-70529msec WRITE: bw=357KiB/s (366kB/s), 88.7KiB/s-92.9KiB/s (90.8kB/s-95.1kB/s), io=24.6MiB (25.8MB), run=66618-70529msec 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=145734: Mon Jul 13 10:09:28 2026 read: IOPS=2, BW=2360KiB/s (2417kB/s)(7168KiB/3037msec) clat (usec): min=1460, max=351744, avg=215799.19, stdev=115241.71 lat (usec): min=1461, max=351745, avg=215800.61, stdev=115241.88 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1467], 10.00th=[ 1467], 20.00th=[143655], | 30.00th=[200279], 40.00th=[200279], 50.00th=[258999], 60.00th=[261096], | 70.00th=[261096], 80.00th=[291505], 90.00th=[350225], 95.00th=[350225], | 99.00th=[350225], 99.50th=[350225], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 1965, max= 4096, per=76.75%, avg=3351.00, stdev=1201.44, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1686KiB/s (1726kB/s)(5120KiB/3037msec); 0 zone resets clat (msec): min=202, max=347, avg=280.94, stdev=55.97 lat (msec): min=204, max=347, avg=281.46, stdev=55.33 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 300], 60.00th=[ 300], | 70.00th=[ 305], 80.00th=[ 305], 90.00th=[ 347], 95.00th=[ 347], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 2019, max= 4079, per=44.42%, avg=2715.33, stdev=1181.06, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 2=8.33%, 250=33.33%, 500=58.33% cpu : usr=0.00%, sys=19.43%, ctx=230, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145735: Mon Jul 13 10:09:28 2026 read: IOPS=0, BW=437KiB/s (447kB/s)(2048KiB/4690msec) clat (msec): min=193, max=334, avg=264.10, stdev=99.45 lat (msec): min=193, max=334, avg=264.11, stdev=99.45 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 194], 10.00th=[ 194], 20.00th=[ 194], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 194], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 1917, max= 1984, per=44.67%, avg=1950.50, stdev=47.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2183KiB/s (2236kB/s)(10.0MiB/4690msec); 0 zone resets clat (msec): min=168, max=1004, avg=391.38, stdev=248.51 lat (msec): min=168, max=1004, avg=391.66, stdev=248.48 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 292], 50.00th=[ 334], 60.00th=[ 351], | 70.00th=[ 388], 80.00th=[ 447], 90.00th=[ 558], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 1917, max= 4096, per=42.17%, avg=2577.57, stdev=1021.13, samples=7 iops : min= 1, max= 4, avg= 1.71, stdev= 1.25, samples=7 lat (msec) : 250=33.33%, 500=50.00%, 750=8.33%, 2000=8.33% cpu : usr=0.04%, sys=13.44%, ctx=183, 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=145736: Mon Jul 13 10:09:28 2026 read: IOPS=1, BW=1667KiB/s (1707kB/s)(6144KiB/3686msec) clat (usec): min=1395, max=366364, avg=201606.26, stdev=152825.89 lat (usec): min=1396, max=366365, avg=201607.35, stdev=152825.76 clat percentiles (usec): | 1.00th=[ 1401], 5.00th=[ 1401], 10.00th=[ 1401], 20.00th=[ 19006], | 30.00th=[ 19006], 40.00th=[263193], 50.00th=[263193], 60.00th=[270533], | 70.00th=[287310], 80.00th=[287310], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 1917, max= 4096, per=76.74%, avg=3350.67, stdev=1241.92, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1667KiB/s (1707kB/s)(6144KiB/3686msec); 0 zone resets clat (msec): min=174, max=738, avg=402.16, stdev=226.16 lat (msec): min=174, max=738, avg=402.26, stdev=226.17 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 239], 50.00th=[ 239], 60.00th=[ 439], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1917, max= 3737, per=38.39%, avg=2346.60, stdev=778.99, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 2=8.33%, 20=8.33%, 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.05%, sys=16.31%, ctx=169, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145737: Mon Jul 13 10:09:28 2026 read: IOPS=1, BW=1259KiB/s (1289kB/s)(5120KiB/4067msec) clat (usec): min=475, max=74169, avg=16658.01, stdev=32187.72 lat (usec): min=476, max=74171, avg=16659.28, stdev=32187.70 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 478], | 30.00th=[ 1004], 40.00th=[ 1004], 50.00th=[ 3752], 60.00th=[ 3752], | 70.00th=[ 3916], 80.00th=[ 3916], 90.00th=[73925], 95.00th=[73925], | 99.00th=[73925], 99.50th=[73925], 99.90th=[73925], 99.95th=[73925], | 99.99th=[73925] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1762KiB/s (1805kB/s)(7168KiB/4067msec); 0 zone resets clat (msec): min=129, max=1334, avg=504.36, stdev=457.56 lat (msec): min=129, max=1334, avg=504.45, stdev=457.55 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 130], 10.00th=[ 130], 20.00th=[ 222], | 30.00th=[ 251], 40.00th=[ 251], 50.00th=[ 309], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 961], 90.00th=[ 1334], 95.00th=[ 1334], | 99.00th=[ 1334], 99.50th=[ 1334], 99.90th=[ 1334], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 1917, max= 3984, per=40.63%, avg=2484.00, stdev=1001.28, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 4=16.67%, 100=8.33%, 250=16.67%, 500=25.00% lat (msec) : 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=10.85%, ctx=153, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4367KiB/s (4472kB/s), 437KiB/s-2360KiB/s (447kB/s-2417kB/s), io=20.0MiB (20.0MB), run=3037-4690msec WRITE: bw=6113KiB/s (6260kB/s), 1667KiB/s-2183KiB/s (1707kB/s-2236kB/s), io=28.0MiB (29.4MB), run=3037-4690msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145729: Mon Jul 13 10:09:29 2026 read: IOPS=1, BW=1534KiB/s (1571kB/s)(7168KiB/4672msec) clat (msec): min=89, max=753, avg=250.42, stdev=230.13 lat (msec): min=89, max=753, avg=250.42, stdev=230.13 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 117], | 30.00th=[ 122], 40.00th=[ 122], 50.00th=[ 197], 60.00th=[ 213], | 70.00th=[ 213], 80.00th=[ 262], 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= 1385, max= 4015, per=61.09%, avg=2274.20, stdev=1009.73, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1096KiB/s (1122kB/s)(5120KiB/4672msec); 0 zone resets clat (msec): min=273, max=807, avg=549.55, stdev=239.42 lat (msec): min=273, max=807, avg=549.63, stdev=239.41 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 275], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 684], 80.00th=[ 684], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2007, max= 3806, per=50.00%, avg=2606.67, stdev=1038.65, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.40%, ctx=57, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145730: Mon Jul 13 10:09:29 2026 read: IOPS=0, BW=372KiB/s (381kB/s)(2048KiB/5500msec) clat (msec): min=135, max=546, avg=340.68, stdev=290.60 lat (msec): min=135, max=546, avg=340.68, stdev=290.60 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 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= 1408, max= 2039, per=46.29%, avg=1723.50, stdev=446.18, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1862KiB/s (1907kB/s)(10.0MiB/5500msec); 0 zone resets clat (msec): min=173, max=1405, avg=468.98, stdev=409.68 lat (msec): min=173, max=1405, avg=469.08, stdev=409.68 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 205], | 30.00th=[ 213], 40.00th=[ 241], 50.00th=[ 279], 60.00th=[ 338], | 70.00th=[ 351], 80.00th=[ 481], 90.00th=[ 1011], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1889, max= 6059, per=57.17%, avg=2980.17, stdev=1720.18, samples=6 iops : min= 1, max= 5, avg= 2.00, stdev= 1.67, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 2000=16.67% cpu : usr=0.00%, sys=4.56%, ctx=82, 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=145731: Mon Jul 13 10:09:29 2026 read: IOPS=1, BW=1265KiB/s (1296kB/s)(6144KiB/4856msec) clat (msec): min=82, max=656, avg=264.54, stdev=213.89 lat (msec): min=82, max=656, avg=264.54, stdev=213.89 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 140], 50.00th=[ 140], 60.00th=[ 253], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 2007, max= 3806, per=70.02%, avg=2606.67, stdev=1038.65, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1265KiB/s (1296kB/s)(6144KiB/4856msec); 0 zone resets clat (msec): min=270, max=946, avg=492.52, stdev=263.52 lat (msec): min=270, max=946, avg=492.61, stdev=263.52 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 414], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 2007, max= 4087, per=48.63%, avg=2535.00, stdev=1034.78, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=8.33%, 250=16.67%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.24%, ctx=95, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145733: Mon Jul 13 10:09:29 2026 read: IOPS=1, BW=1030KiB/s (1054kB/s)(5120KiB/4972msec) clat (msec): min=81, max=399, avg=267.37, stdev=154.84 lat (msec): min=81, max=399, avg=267.37, stdev=154.84 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 83], 10.00th=[ 83], 20.00th=[ 83], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 342], 60.00th=[ 342], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 1903, max= 4039, per=71.17%, avg=2649.67, stdev=1204.32, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1442KiB/s (1476kB/s)(7168KiB/4972msec); 0 zone resets clat (msec): min=238, max=757, avg=514.03, stdev=216.33 lat (msec): min=238, max=757, avg=514.12, stdev=216.32 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 249], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 634], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 684], 90.00th=[ 760], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1410, max= 2043, per=36.33%, avg=1894.00, stdev=243.72, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 100=8.33%, 250=25.00%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.00%, sys=3.82%, ctx=90, 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=3724KiB/s (3813kB/s), 372KiB/s-1534KiB/s (381kB/s-1571kB/s), io=20.0MiB (20.0MB), run=4672-5500msec WRITE: bw=5213KiB/s (5338kB/s), 1096KiB/s-1862KiB/s (1122kB/s-1907kB/s), io=28.0MiB (29.4MB), run=4672-5500msec 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=145743: Mon Jul 13 10:09:45 2026 read: IOPS=0, BW=2295KiB/s (2350kB/s)(12.0MiB/5354msec) clat (msec): min=679, max=3776, avg=1756.62, stdev=1750.71 lat (msec): min=679, max=3776, avg=1756.62, stdev=1750.71 clat percentiles (msec): | 1.00th=[ 684], 5.00th=[ 684], 10.00th=[ 684], 20.00th=[ 684], | 30.00th=[ 684], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 3775], 80.00th=[ 3775], 90.00th=[ 3775], 95.00th=[ 3775], | 99.00th=[ 3775], 99.50th=[ 3775], 99.90th=[ 3775], 99.95th=[ 3775], | 99.99th=[ 3775] bw ( KiB/s): min= 7907, max= 8192, per=100.00%, avg=8049.50, stdev=201.53, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=8.35%, ctx=891, 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=145744: Mon Jul 13 10:09:45 2026 read: IOPS=0, BW=668KiB/s (684kB/s)(4096KiB/6130msec) clat (nsec): min=3661.1M, max=3661.1M, avg=3661145506.00, stdev= 0.00 lat (nsec): min=3661.1M, max=3661.1M, avg=3661148100.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3675], 5.00th=[ 3675], 10.00th=[ 3675], 20.00th=[ 3675], | 30.00th=[ 3675], 40.00th=[ 3675], 50.00th=[ 3675], 60.00th=[ 3675], | 70.00th=[ 3675], 80.00th=[ 3675], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 7907, max= 7907, per=100.00%, avg=7907.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1336KiB/s (1368kB/s)(8192KiB/6130msec); 0 zone resets clat (msec): min=657, max=1802, avg=1229.98, stdev=809.83 lat (msec): min=657, max=1805, avg=1231.61, stdev=811.71 clat percentiles (msec): | 1.00th=[ 659], 5.00th=[ 659], 10.00th=[ 659], 20.00th=[ 659], | 30.00th=[ 659], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 1804], | 70.00th=[ 1804], 80.00th=[ 1804], 90.00th=[ 1804], 95.00th=[ 1804], | 99.00th=[ 1804], 99.50th=[ 1804], 99.90th=[ 1804], 99.95th=[ 1804], | 99.99th=[ 1804] 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) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=2.58%, ctx=146, 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=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=145745: Mon Jul 13 10:09:45 2026 write: IOPS=0, BW=2227KiB/s (2281kB/s)(12.0MiB/5517msec); 0 zone resets clat (msec): min=647, max=3508, avg=1828.63, stdev=1493.95 lat (msec): min=649, max=3508, avg=1829.45, stdev=1493.26 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 3507], 80.00th=[ 3507], 90.00th=[ 3507], 95.00th=[ 3507], | 99.00th=[ 3507], 99.50th=[ 3507], 99.90th=[ 3507], 99.95th=[ 3507], | 99.99th=[ 3507] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.54%, ctx=71, majf=0, minf=7 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=145746: Mon Jul 13 10:09:45 2026 write: IOPS=0, BW=2586KiB/s (2648kB/s)(12.0MiB/4751msec); 0 zone resets clat (msec): min=640, max=3399, avg=1582.61, stdev=1574.10 lat (msec): min=640, max=3400, avg=1582.95, stdev=1574.24 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 709], | 70.00th=[ 3406], 80.00th=[ 3406], 90.00th=[ 3406], 95.00th=[ 3406], | 99.00th=[ 3406], 99.50th=[ 3406], 99.90th=[ 3406], 99.95th=[ 3406], | 99.99th=[ 3406] bw ( KiB/s): min= 7907, max= 8110, per=100.00%, avg=8008.50, stdev=143.54, 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=2.00%, ctx=43, 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 Run status group 0 (all jobs): READ: bw=2673KiB/s (2737kB/s), 668KiB/s-2295KiB/s (684kB/s-2350kB/s), io=16.0MiB (16.8MB), run=5354-6130msec WRITE: bw=5346KiB/s (5474kB/s), 1336KiB/s-2586KiB/s (1368kB/s-2648kB/s), io=32.0MiB (33.6MB), run=4751-6130msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145748: Mon Jul 13 10:09:45 2026 read: IOPS=0, BW=2097KiB/s (2147kB/s)(12.0MiB/5861msec) clat (msec): min=331, max=3883, avg=1953.08, stdev=1796.13 lat (msec): min=331, max=3883, avg=1953.08, stdev=1796.13 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 3876], 80.00th=[ 3876], 90.00th=[ 3876], 95.00th=[ 3876], | 99.00th=[ 3876], 99.50th=[ 3876], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 8015, max= 8143, per=100.00%, avg=8079.00, stdev=90.51, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.28%, ctx=54, 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=145749: Mon Jul 13 10:09:45 2026 read: IOPS=0, BW=675KiB/s (691kB/s)(4096KiB/6069msec) clat (nsec): min=4052.8M, max=4052.8M, avg=4052763323.00, stdev= 0.00 lat (nsec): min=4052.8M, max=4052.8M, avg=4052764948.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 4044], 5.00th=[ 4044], 10.00th=[ 4044], 20.00th=[ 4044], | 30.00th=[ 4044], 40.00th=[ 4044], 50.00th=[ 4044], 60.00th=[ 4044], | 70.00th=[ 4044], 80.00th=[ 4044], 90.00th=[ 4044], 95.00th=[ 4044], | 99.00th=[ 4044], 99.50th=[ 4044], 99.90th=[ 4044], 99.95th=[ 4044], | 99.99th=[ 4044] bw ( KiB/s): min= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1350KiB/s (1382kB/s)(8192KiB/6069msec); 0 zone resets clat (msec): min=329, max=1680, avg=1005.38, stdev=955.45 lat (msec): min=331, max=1681, avg=1006.35, stdev=954.89 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 330], 60.00th=[ 1687], | 70.00th=[ 1687], 80.00th=[ 1687], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.60%, ctx=30, 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=145750: Mon Jul 13 10:09:45 2026 write: IOPS=0, BW=2162KiB/s (2214kB/s)(12.0MiB/5684msec); 0 zone resets clat (msec): min=352, max=3680, avg=1893.39, stdev=1677.47 lat (msec): min=352, max=3680, avg=1893.84, stdev=1677.40 clat percentiles (msec): | 1.00th=[ 351], 5.00th=[ 351], 10.00th=[ 351], 20.00th=[ 351], | 30.00th=[ 351], 40.00th=[ 1653], 50.00th=[ 1653], 60.00th=[ 1653], | 70.00th=[ 3675], 80.00th=[ 3675], 90.00th=[ 3675], 95.00th=[ 3675], | 99.00th=[ 3675], 99.50th=[ 3675], 99.90th=[ 3675], 99.95th=[ 3675], | 99.99th=[ 3675] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.36%, ctx=49, majf=0, minf=7 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=145751: Mon Jul 13 10:09:45 2026 write: IOPS=0, BW=2322KiB/s (2377kB/s)(12.0MiB/5293msec); 0 zone resets clat (msec): min=296, max=3634, avg=1763.49, stdev=1705.30 lat (msec): min=296, max=3634, avg=1763.82, stdev=1705.38 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 70.00th=[ 3641], 80.00th=[ 3641], 90.00th=[ 3641], 95.00th=[ 3641], | 99.00th=[ 3641], 99.50th=[ 3641], 99.90th=[ 3641], 99.95th=[ 3641], | 99.99th=[ 3641] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.72%, ctx=33, 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 Run status group 0 (all jobs): READ: bw=2700KiB/s (2764kB/s), 675KiB/s-2097KiB/s (691kB/s-2147kB/s), io=16.0MiB (16.8MB), run=5861-6069msec WRITE: bw=5399KiB/s (5529kB/s), 1350KiB/s-2322KiB/s (1382kB/s-2377kB/s), io=32.0MiB (33.6MB), run=5293-6069msec