== sanity test 398b: DIO and buffer IO race ============== 16:33:49 (1788467629) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.88816 s, 10.3 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=144991: Thu Sep 3 16:35:58 2026 read: IOPS=13, BW=54.6KiB/s (55.9kB/s)(5992KiB/109671msec) clat (usec): min=27, max=638528, avg=35906.18, stdev=31540.08 lat (usec): min=28, max=638529, avg=35912.00, stdev=31540.46 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 70], 10.00th=[ 8356], 20.00th=[ 17171], | 30.00th=[ 21627], 40.00th=[ 25822], 50.00th=[ 30540], 60.00th=[ 35914], | 70.00th=[ 43254], 80.00th=[ 52691], 90.00th=[ 67634], 95.00th=[ 79168], | 99.00th=[119014], 99.50th=[137364], 99.90th=[480248], 99.95th=[641729], | 99.99th=[641729] bw ( KiB/s): min= 7, max= 120, per=25.65%, avg=54.13, stdev=22.03, samples=217 iops : min= 1, max= 30, avg=12.92, stdev= 5.56, samples=217 write: IOPS=14, BW=57.4KiB/s (58.8kB/s)(6296KiB/109671msec); 0 zone resets clat (usec): min=658, max=364011, avg=35192.01, stdev=35290.22 lat (usec): min=659, max=364012, avg=35200.53, stdev=35292.73 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1270], 10.00th=[ 1582], 20.00th=[ 3884], | 30.00th=[ 7898], 40.00th=[ 18482], 50.00th=[ 27657], 60.00th=[ 36439], | 70.00th=[ 45351], 80.00th=[ 60556], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[149947], 99.50th=[173016], 99.90th=[208667], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 136, per=25.84%, avg=57.11, stdev=20.10, samples=216 iops : min= 1, max= 34, avg=13.67, stdev= 5.05, samples=216 lat (usec) : 50=0.29%, 100=3.45%, 250=0.62%, 500=0.16%, 750=0.07% lat (usec) : 1000=0.20% lat (msec) : 2=6.48%, 4=3.68%, 10=6.77%, 20=12.34%, 50=41.08% lat (msec) : 100=21.00%, 250=3.74%, 500=0.10%, 750=0.03% cpu : usr=0.10%, sys=6.31%, ctx=6817, 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=144992: Thu Sep 3 16:35:58 2026 read: IOPS=13, BW=54.4KiB/s (55.7kB/s)(5940KiB/109251msec) clat (usec): min=33, max=289843, avg=34903.91, stdev=25848.65 lat (usec): min=33, max=289844, avg=34907.25, stdev=25848.80 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 68], 10.00th=[ 289], 20.00th=[ 16909], | 30.00th=[ 21365], 40.00th=[ 25560], 50.00th=[ 30540], 60.00th=[ 35390], | 70.00th=[ 42730], 80.00th=[ 51119], 90.00th=[ 64750], 95.00th=[ 80217], | 99.00th=[110625], 99.50th=[143655], 99.90th=[225444], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 119, per=25.90%, avg=54.64, stdev=22.52, samples=213 iops : min= 1, max= 29, avg=13.04, stdev= 5.71, samples=213 write: IOPS=14, BW=58.1KiB/s (59.5kB/s)(6348KiB/109251msec); 0 zone resets clat (usec): min=889, max=661990, avg=35866.13, stdev=40242.79 lat (usec): min=890, max=661991, avg=35871.12, stdev=40242.09 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1303], 10.00th=[ 1647], 20.00th=[ 3720], | 30.00th=[ 7832], 40.00th=[ 17433], 50.00th=[ 26346], 60.00th=[ 35390], | 70.00th=[ 46924], 80.00th=[ 60031], 90.00th=[ 82314], 95.00th=[105382], | 99.00th=[156238], 99.50th=[212861], 99.90th=[392168], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 7, max= 134, per=26.06%, avg=57.60, stdev=21.90, samples=216 iops : min= 1, max= 33, avg=13.79, stdev= 5.49, samples=216 lat (usec) : 50=0.26%, 100=4.07%, 250=0.46%, 500=0.26%, 750=0.03% lat (usec) : 1000=0.16% lat (msec) : 2=6.09%, 4=4.88%, 10=6.05%, 20=12.92%, 50=40.62% lat (msec) : 100=20.31%, 250=3.68%, 500=0.16%, 750=0.03% cpu : usr=0.10%, sys=5.99%, ctx=6391, 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=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=144993: Thu Sep 3 16:35:58 2026 read: IOPS=13, BW=53.4KiB/s (54.7kB/s)(6028KiB/112850msec) clat (usec): min=21, max=227369, avg=35100.34, stdev=25506.40 lat (usec): min=21, max=227371, avg=35101.87, stdev=25506.39 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 69], 10.00th=[ 221], 20.00th=[ 16319], | 30.00th=[ 21627], 40.00th=[ 25560], 50.00th=[ 30540], 60.00th=[ 36439], | 70.00th=[ 42730], 80.00th=[ 52691], 90.00th=[ 68682], 95.00th=[ 80217], | 99.00th=[109577], 99.50th=[139461], 99.90th=[225444], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 7, max= 120, per=25.28%, avg=53.34, stdev=23.08, samples=221 iops : min= 1, max= 30, avg=12.72, stdev= 5.83, samples=221 write: IOPS=13, BW=55.5KiB/s (56.8kB/s)(6260KiB/112850msec); 0 zone resets clat (usec): min=791, max=791784, avg=38001.74, stdev=41664.78 lat (usec): min=793, max=791789, avg=38004.20, stdev=41665.18 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1352], 10.00th=[ 2073], 20.00th=[ 4490], | 30.00th=[ 8979], 40.00th=[ 20055], 50.00th=[ 29230], 60.00th=[ 38011], | 70.00th=[ 50594], 80.00th=[ 64750], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[156238], 99.50th=[212861], 99.90th=[354419], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 15, max= 127, per=25.05%, avg=55.37, stdev=19.97, samples=221 iops : min= 3, max= 31, avg=13.23, stdev= 5.06, samples=221 lat (usec) : 50=0.42%, 100=3.81%, 250=0.72%, 500=0.13%, 750=0.10% lat (usec) : 1000=0.23% lat (msec) : 2=4.75%, 4=4.49%, 10=6.93%, 20=12.21%, 50=39.84% lat (msec) : 100=22.46%, 250=3.78%, 500=0.10%, 1000=0.03% cpu : usr=0.11%, sys=5.81%, ctx=6678, 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=144994: Thu Sep 3 16:35:58 2026 read: IOPS=13, BW=53.2KiB/s (54.5kB/s)(6052KiB/113743msec) clat (usec): min=23, max=247602, avg=35454.44, stdev=26711.93 lat (usec): min=23, max=247604, avg=35459.59, stdev=26715.94 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 68], 10.00th=[ 155], 20.00th=[ 16909], | 30.00th=[ 21103], 40.00th=[ 25560], 50.00th=[ 30540], 60.00th=[ 35914], | 70.00th=[ 43254], 80.00th=[ 52691], 90.00th=[ 68682], 95.00th=[ 83362], | 99.00th=[119014], 99.50th=[158335], 99.90th=[206570], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 7, max= 120, per=25.40%, avg=53.59, stdev=22.22, samples=221 iops : min= 1, max= 30, avg=12.79, stdev= 5.60, samples=221 write: IOPS=13, BW=54.8KiB/s (56.1kB/s)(6236KiB/113743msec); 0 zone resets clat (usec): min=778, max=788670, avg=38239.72, stdev=44907.62 lat (usec): min=779, max=788673, avg=38242.97, stdev=44907.85 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1336], 10.00th=[ 1811], 20.00th=[ 3884], | 30.00th=[ 7898], 40.00th=[ 17171], 50.00th=[ 27657], 60.00th=[ 38011], | 70.00th=[ 50070], 80.00th=[ 65274], 90.00th=[ 86508], 95.00th=[110625], | 99.00th=[181404], 99.50th=[231736], 99.90th=[455082], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 127, per=24.76%, avg=54.72, stdev=22.39, samples=223 iops : min= 1, max= 31, avg=13.07, stdev= 5.60, samples=223 lat (usec) : 50=0.62%, 100=3.84%, 250=0.62%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=5.53%, 4=4.85%, 10=6.67%, 20=12.30%, 50=38.70% lat (msec) : 100=21.97%, 250=4.36%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=6.03%, ctx=6636, 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=211KiB/s (216kB/s), 53.2KiB/s-54.6KiB/s (54.5kB/s-55.9kB/s), io=23.4MiB (24.6MB), run=109251-113743msec WRITE: bw=221KiB/s (226kB/s), 54.8KiB/s-58.1KiB/s (56.1kB/s-59.5kB/s), io=24.6MiB (25.7MB), run=109251-113743msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144987: Thu Sep 3 16:37:55 2026 read: IOPS=6, BW=26.1KiB/s (26.8kB/s)(5992KiB/229175msec) clat (msec): min=5, max=652, avg=30.82, stdev=35.93 lat (msec): min=5, max=652, avg=30.83, stdev=35.94 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 42], 90.00th=[ 65], 95.00th=[ 87], | 99.00th=[ 161], 99.50th=[ 190], 99.90th=[ 443], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 7, max= 111, per=27.00%, avg=28.08, stdev=19.23, samples=414 iops : min= 1, max= 27, avg= 6.40, stdev= 4.84, samples=414 write: IOPS=6, BW=27.5KiB/s (28.1kB/s)(6296KiB/229175msec); 0 zone resets clat (msec): min=36, max=480, avg=115.96, stdev=56.66 lat (msec): min=36, max=480, avg=115.96, stdev=56.66 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 62], 20.00th=[ 72], | 30.00th=[ 82], 40.00th=[ 91], 50.00th=[ 102], 60.00th=[ 114], | 70.00th=[ 130], 80.00th=[ 155], 90.00th=[ 190], 95.00th=[ 222], | 99.00th=[ 317], 99.50th=[ 355], 99.90th=[ 460], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 7, max= 63, per=24.84%, avg=27.07, stdev=12.43, samples=450 iops : min= 1, max= 15, avg= 6.14, stdev= 3.18, samples=450 lat (msec) : 10=4.92%, 20=19.56%, 50=18.03%, 100=29.49%, 250=26.20% lat (msec) : 500=1.76%, 750=0.03% cpu : usr=0.05%, sys=1.42%, ctx=5265, 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=144988: Thu Sep 3 16:37:55 2026 read: IOPS=6, BW=25.8KiB/s (26.4kB/s)(5940KiB/230414msec) clat (msec): min=4, max=693, avg=29.79, stdev=34.36 lat (msec): min=4, max=693, avg=29.80, stdev=34.36 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 37], 90.00th=[ 63], 95.00th=[ 89], | 99.00th=[ 153], 99.50th=[ 203], 99.90th=[ 334], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 109, per=27.11%, avg=28.20, stdev=18.86, samples=409 iops : min= 1, max= 27, avg= 6.43, stdev= 4.76, samples=409 write: IOPS=6, BW=27.5KiB/s (28.2kB/s)(6348KiB/230414msec); 0 zone resets clat (msec): min=32, max=671, avg=116.99, stdev=55.87 lat (msec): min=32, max=671, avg=116.99, stdev=55.87 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 54], 10.00th=[ 63], 20.00th=[ 74], | 30.00th=[ 84], 40.00th=[ 93], 50.00th=[ 104], 60.00th=[ 117], | 70.00th=[ 132], 80.00th=[ 155], 90.00th=[ 192], 95.00th=[ 224], | 99.00th=[ 300], 99.50th=[ 342], 99.90th=[ 439], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 63, per=24.81%, avg=27.04, stdev=11.86, samples=455 iops : min= 1, max= 15, avg= 6.14, stdev= 3.02, samples=455 lat (msec) : 10=4.72%, 20=19.66%, 50=18.55%, 100=27.67%, 250=27.77% lat (msec) : 500=1.56%, 750=0.07% cpu : usr=0.05%, sys=1.39%, ctx=5121, 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=144989: Thu Sep 3 16:37:55 2026 read: IOPS=6, BW=26.1KiB/s (26.8kB/s)(6028KiB/230550msec) clat (msec): min=4, max=366, avg=30.63, stdev=31.93 lat (msec): min=4, max=366, avg=30.63, stdev=31.93 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 67], 95.00th=[ 89], | 99.00th=[ 155], 99.50th=[ 180], 99.90th=[ 342], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 7, max= 111, per=26.49%, avg=27.55, stdev=18.90, samples=424 iops : min= 1, max= 27, avg= 6.27, stdev= 4.76, samples=424 write: IOPS=6, BW=27.2KiB/s (27.8kB/s)(6260KiB/230550msec); 0 zone resets clat (msec): min=33, max=783, avg=117.53, stdev=58.18 lat (msec): min=33, max=783, avg=117.53, stdev=58.18 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 55], 10.00th=[ 61], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 104], 60.00th=[ 118], | 70.00th=[ 136], 80.00th=[ 155], 90.00th=[ 192], 95.00th=[ 226], | 99.00th=[ 288], 99.50th=[ 355], 99.90th=[ 676], 99.95th=[ 785], | 99.99th=[ 785] bw ( KiB/s): min= 7, max= 63, per=24.87%, avg=27.11, stdev=12.00, samples=447 iops : min= 1, max= 15, avg= 6.15, stdev= 3.06, samples=447 lat (msec) : 10=5.24%, 20=19.82%, 50=17.90%, 100=27.86%, 250=27.47% lat (msec) : 500=1.63%, 750=0.03%, 1000=0.03% cpu : usr=0.06%, sys=1.42%, ctx=5226, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144990: Thu Sep 3 16:37:55 2026 read: IOPS=6, BW=26.5KiB/s (27.1kB/s)(6052KiB/228428msec) clat (msec): min=5, max=435, avg=29.99, stdev=32.89 lat (msec): min=5, max=435, avg=30.00, stdev=32.89 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 64], 95.00th=[ 88], | 99.00th=[ 161], 99.50th=[ 190], 99.90th=[ 363], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 7, max= 120, per=27.58%, avg=28.68, stdev=19.57, samples=410 iops : min= 1, max= 30, avg= 6.55, stdev= 4.93, samples=410 write: IOPS=6, BW=27.3KiB/s (27.0kB/s)(6236KiB/228428msec); 0 zone resets clat (msec): min=33, max=778, avg=117.11, stdev=57.34 lat (msec): min=33, max=778, avg=117.12, stdev=57.34 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 53], 10.00th=[ 61], 20.00th=[ 73], | 30.00th=[ 83], 40.00th=[ 92], 50.00th=[ 104], 60.00th=[ 117], | 70.00th=[ 136], 80.00th=[ 159], 90.00th=[ 192], 95.00th=[ 220], | 99.00th=[ 292], 99.50th=[ 321], 99.90th=[ 527], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 7, max= 64, per=24.58%, avg=26.79, stdev=12.14, samples=451 iops : min= 1, max= 16, avg= 6.07, stdev= 3.08, samples=451 lat (msec) : 10=5.27%, 20=20.41%, 50=18.33%, 100=27.05%, 250=27.64% lat (msec) : 500=1.24%, 750=0.03%, 1000=0.03% cpu : usr=0.05%, sys=1.37%, ctx=5093, 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=104KiB/s (107kB/s), 25.8KiB/s-26.5KiB/s (26.4kB/s-27.1kB/s), io=23.4MiB (24.6MB), run=228428-230550msec WRITE: bw=109KiB/s (112kB/s), 27.2KiB/s-27.5KiB/s (27.8kB/s-28.2kB/s), io=24.6MiB (25.7MB), run=228428-230550msec 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=145040: Thu Sep 3 16:38:36 2026 read: IOPS=10, BW=173KiB/s (178kB/s)(5920KiB/34139msec) clat (usec): min=34, max=303175, avg=44303.28, stdev=41904.20 lat (usec): min=35, max=303177, avg=44304.76, stdev=41904.16 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 62], 10.00th=[ 77], 20.00th=[ 306], | 30.00th=[ 20841], 40.00th=[ 29492], 50.00th=[ 36963], 60.00th=[ 43779], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[102237], 95.00th=[124257], | 99.00th=[166724], 99.50th=[229639], 99.90th=[304088], 99.95th=[304088], | 99.99th=[304088] bw ( KiB/s): min= 31, max= 512, per=24.63%, avg=172.67, stdev=93.71, samples=67 iops : min= 1, max= 32, avg=10.06, stdev= 5.95, samples=67 write: IOPS=11, BW=187KiB/s (191kB/s)(6368KiB/34139msec); 0 zone resets clat (usec): min=1226, max=268014, avg=44254.73, stdev=51606.48 lat (usec): min=1227, max=268014, avg=44289.44, stdev=51592.99 clat percentiles (usec): | 1.00th=[ 1434], 5.00th=[ 1745], 10.00th=[ 2245], 20.00th=[ 4817], | 30.00th=[ 9372], 40.00th=[ 13829], 50.00th=[ 23987], 60.00th=[ 34866], | 70.00th=[ 51643], 80.00th=[ 82314], 90.00th=[116917], 95.00th=[152044], | 99.00th=[238027], 99.50th=[261096], 99.90th=[267387], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 32, max= 478, per=25.20%, avg=185.96, stdev=92.93, samples=67 iops : min= 2, max= 29, avg=10.91, stdev= 5.85, samples=67 lat (usec) : 50=0.65%, 100=7.55%, 250=1.30%, 500=0.26%, 750=0.13% lat (msec) : 2=4.56%, 4=4.43%, 10=8.20%, 20=10.68%, 50=30.08% lat (msec) : 100=19.53%, 250=12.24%, 500=0.39% cpu : usr=0.09%, sys=5.43%, ctx=1448, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145041: Thu Sep 3 16:38:36 2026 read: IOPS=10, BW=172KiB/s (176kB/s)(5744KiB/33472msec) clat (usec): min=40, max=411854, avg=48559.88, stdev=46485.64 lat (usec): min=41, max=411856, avg=48561.46, stdev=46485.62 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 69], 10.00th=[ 81], 20.00th=[ 14353], | 30.00th=[ 25035], 40.00th=[ 31589], 50.00th=[ 40109], 60.00th=[ 49021], | 70.00th=[ 61080], 80.00th=[ 73925], 90.00th=[101188], 95.00th=[128451], | 99.00th=[212861], 99.50th=[304088], 99.90th=[413139], 99.95th=[413139], | 99.99th=[413139] bw ( KiB/s): min= 32, max= 479, per=24.53%, avg=171.98, stdev=79.87, samples=65 iops : min= 2, max= 29, avg=10.03, stdev= 5.02, samples=65 write: IOPS=12, BW=196KiB/s (200kB/s)(6544KiB/33472msec); 0 zone resets clat (usec): min=1065, max=343519, avg=38801.62, stdev=47084.20 lat (usec): min=1067, max=343522, avg=38804.29, stdev=47084.30 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1958], 10.00th=[ 2540], 20.00th=[ 4817], | 30.00th=[ 8094], 40.00th=[ 13304], 50.00th=[ 21365], 60.00th=[ 31851], | 70.00th=[ 44827], 80.00th=[ 61604], 90.00th=[101188], 95.00th=[133694], | 99.00th=[210764], 99.50th=[254804], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 31, max= 416, per=26.44%, avg=195.12, stdev=89.43, samples=65 iops : min= 1, max= 26, avg=11.49, stdev= 5.69, samples=65 lat (usec) : 50=0.52%, 100=6.38%, 250=1.69%, 1000=0.13% lat (msec) : 2=3.12%, 4=5.47%, 10=9.24%, 20=11.33%, 50=29.56% lat (msec) : 100=22.14%, 250=9.51%, 500=0.91% cpu : usr=0.08%, sys=5.71%, ctx=1493, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145042: Thu Sep 3 16:38:36 2026 read: IOPS=11, BW=184KiB/s (188kB/s)(6256KiB/34026msec) clat (usec): min=37, max=285795, avg=48428.29, stdev=45219.98 lat (usec): min=38, max=285797, avg=48435.87, stdev=45224.97 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 63], 10.00th=[ 76], 20.00th=[ 13173], | 30.00th=[ 25035], 40.00th=[ 32375], 50.00th=[ 39060], 60.00th=[ 47449], | 70.00th=[ 58983], 80.00th=[ 73925], 90.00th=[100140], 95.00th=[139461], | 99.00th=[244319], 99.50th=[256902], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 444, per=26.15%, avg=183.30, stdev=85.85, samples=66 iops : min= 1, max= 27, avg=10.74, stdev= 5.46, samples=66 write: IOPS=11, BW=177KiB/s (182kB/s)(6032KiB/34026msec); 0 zone resets clat (usec): min=1345, max=219345, avg=39630.39, stdev=41902.23 lat (usec): min=1346, max=219349, avg=39633.35, stdev=41902.43 clat percentiles (usec): | 1.00th=[ 1467], 5.00th=[ 1860], 10.00th=[ 2671], 20.00th=[ 5604], | 30.00th=[ 9110], 40.00th=[ 14353], 50.00th=[ 25035], 60.00th=[ 36963], | 70.00th=[ 54264], 80.00th=[ 67634], 90.00th=[ 94897], 95.00th=[137364], | 99.00th=[187696], 99.50th=[198181], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 30, max= 447, per=24.01%, avg=177.17, stdev=85.81, samples=65 iops : min= 1, max= 27, avg=10.35, stdev= 5.47, samples=65 lat (usec) : 50=1.04%, 100=6.77%, 250=1.17%, 500=0.13%, 1000=0.13% lat (msec) : 2=3.12%, 4=4.69%, 10=8.85%, 20=9.38%, 50=29.43% lat (msec) : 100=25.65%, 250=9.24%, 500=0.39% cpu : usr=0.08%, sys=5.33%, ctx=1578, 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=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=145043: Thu Sep 3 16:38:36 2026 read: IOPS=11, BW=183KiB/s (187kB/s)(6032KiB/32987msec) clat (usec): min=25, max=442340, avg=44576.55, stdev=44117.54 lat (usec): min=25, max=442341, avg=44578.00, stdev=44117.59 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 60], 10.00th=[ 67], 20.00th=[ 122], | 30.00th=[ 20841], 40.00th=[ 30278], 50.00th=[ 36963], 60.00th=[ 47973], | 70.00th=[ 59507], 80.00th=[ 72877], 90.00th=[ 90702], 95.00th=[111674], | 99.00th=[200279], 99.50th=[210764], 99.90th=[442500], 99.95th=[442500], | 99.99th=[442500] bw ( KiB/s): min= 31, max= 416, per=26.99%, avg=189.20, stdev=89.76, samples=61 iops : min= 1, max= 26, avg=11.11, stdev= 5.72, samples=61 write: IOPS=11, BW=190KiB/s (194kB/s)(6256KiB/32987msec); 0 zone resets clat (usec): min=910, max=371826, avg=40749.58, stdev=56049.31 lat (usec): min=910, max=371829, avg=40752.11, stdev=56049.31 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1827], 10.00th=[ 2147], 20.00th=[ 4293], | 30.00th=[ 8029], 40.00th=[ 12125], 50.00th=[ 17957], 60.00th=[ 30540], | 70.00th=[ 47973], 80.00th=[ 68682], 90.00th=[ 94897], 95.00th=[131597], | 99.00th=[337642], 99.50th=[354419], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 60, max= 440, per=25.77%, avg=190.16, stdev=91.59, samples=63 iops : min= 3, max= 27, avg=11.17, stdev= 5.83, samples=63 lat (usec) : 50=0.91%, 100=8.33%, 250=1.43%, 500=0.65%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=4.04%, 4=5.60%, 10=6.64%, 20=13.41%, 50=25.52% lat (msec) : 100=24.22%, 250=7.94%, 500=0.91% cpu : usr=0.10%, sys=5.61%, ctx=1439, 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=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=702KiB/s (718kB/s), 172KiB/s-184KiB/s (176kB/s-188kB/s), io=23.4MiB (24.5MB), run=32987-34139msec WRITE: bw=738KiB/s (756kB/s), 177KiB/s-196KiB/s (182kB/s-200kB/s), io=24.6MiB (25.8MB), run=32987-34139msec fio: pid=145046, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=145045: Thu Sep 3 16:39:08 2026 read: IOPS=5, BW=89.4KiB/s (91.6kB/s)(5920KiB/66191msec) clat (msec): min=6, max=486, avg=42.53, stdev=60.95 lat (msec): min=6, max=486, avg=42.53, stdev=60.95 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 49], 90.00th=[ 96], 95.00th=[ 155], | 99.00th=[ 338], 99.50th=[ 422], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 320, per=32.95%, avg=102.13, stdev=70.40, samples=114 iops : min= 1, max= 20, avg= 5.60, stdev= 4.53, samples=114 write: IOPS=6, BW=96.2KiB/s (98.5kB/s)(6368KiB/66191msec); 0 zone resets clat (msec): min=32, max=516, avg=126.61, stdev=89.40 lat (msec): min=32, max=516, avg=126.61, stdev=89.40 clat percentiles (msec): | 1.00th=[ 38], 5.00th=[ 53], 10.00th=[ 59], 20.00th=[ 66], | 30.00th=[ 74], 40.00th=[ 83], 50.00th=[ 94], 60.00th=[ 106], | 70.00th=[ 126], 80.00th=[ 176], 90.00th=[ 255], 95.00th=[ 326], | 99.00th=[ 451], 99.50th=[ 510], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 30, max= 224, per=30.68%, avg=99.70, stdev=59.67, samples=126 iops : min= 1, max= 14, avg= 5.44, stdev= 3.83, samples=126 lat (msec) : 10=3.65%, 20=18.49%, 50=18.49%, 100=32.55%, 250=20.31% lat (msec) : 500=6.25%, 750=0.26% cpu : usr=0.04%, sys=1.33%, ctx=1426, 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=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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145046: Thu Sep 3 16:39:08 2026 read: IOPS=3, BW=51.7KiB/s (52.0kB/s)(2320KiB/44834msec) clat (msec): min=6, max=486, avg=70.71, stdev=69.84 lat (msec): min=6, max=486, avg=70.71, stdev=69.84 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 47], 60.00th=[ 61], | 70.00th=[ 78], 80.00th=[ 113], 90.00th=[ 169], 95.00th=[ 213], | 99.00th=[ 257], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 30, max= 192, per=22.30%, avg=69.14, stdev=43.63, samples=65 iops : min= 1, max= 12, avg= 3.43, stdev= 2.78, samples=65 write: IOPS=4, BW=64.0KiB/s (66.5kB/s)(2912KiB/44834msec); 0 zone resets clat (msec): min=34, max=630, avg=189.72, stdev=114.98 lat (msec): min=34, max=630, avg=189.72, stdev=114.98 clat percentiles (msec): | 1.00th=[ 43], 5.00th=[ 66], 10.00th=[ 73], 20.00th=[ 93], | 30.00th=[ 117], 40.00th=[ 136], 50.00th=[ 161], 60.00th=[ 192], | 70.00th=[ 222], 80.00th=[ 262], 90.00th=[ 342], 95.00th=[ 414], | 99.00th=[ 617], 99.50th=[ 634], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 30, max= 188, per=20.74%, avg=67.40, stdev=41.34, samples=83 iops : min= 1, max= 11, avg= 3.36, stdev= 2.59, samples=83 lat (msec) : 10=1.52%, 20=5.18%, 50=16.77%, 100=24.09%, 250=38.41% lat (msec) : 500=12.20%, 750=1.52% cpu : usr=0.03%, sys=1.08%, ctx=534, 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=146,182,0,0 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=145047: Thu Sep 3 16:39:08 2026 read: IOPS=6, BW=96.1KiB/s (98.4kB/s)(6256KiB/65080msec) clat (msec): min=6, max=418, avg=36.39, stdev=48.64 lat (msec): min=6, max=418, avg=36.39, stdev=48.64 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 43], 90.00th=[ 80], 95.00th=[ 121], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 418], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 30, max= 416, per=37.23%, avg=115.42, stdev=81.46, samples=107 iops : min= 1, max= 26, avg= 6.45, stdev= 5.15, samples=107 write: IOPS=5, BW=92.7KiB/s (94.9kB/s)(6032KiB/65080msec); 0 zone resets clat (msec): min=37, max=692, avg=134.72, stdev=102.84 lat (msec): min=37, max=692, avg=134.73, stdev=102.83 clat percentiles (msec): | 1.00th=[ 40], 5.00th=[ 54], 10.00th=[ 61], 20.00th=[ 67], | 30.00th=[ 75], 40.00th=[ 85], 50.00th=[ 93], 60.00th=[ 111], | 70.00th=[ 140], 80.00th=[ 188], 90.00th=[ 262], 95.00th=[ 363], | 99.00th=[ 535], 99.50th=[ 558], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 30, max= 255, per=29.76%, avg=96.72, stdev=57.11, samples=121 iops : min= 1, max= 15, avg= 5.26, stdev= 3.67, samples=121 lat (msec) : 10=4.95%, 20=20.57%, 50=19.14%, 100=29.43%, 250=19.79% lat (msec) : 500=5.21%, 750=0.91% cpu : usr=0.07%, sys=1.38%, ctx=1454, 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=145048: Thu Sep 3 16:39:08 2026 read: IOPS=5, BW=91.0KiB/s (94.2kB/s)(6032KiB/65599msec) clat (msec): min=4, max=461, avg=37.94, stdev=53.13 lat (msec): min=4, max=461, avg=37.94, stdev=53.13 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 31], 80.00th=[ 45], 90.00th=[ 80], 95.00th=[ 144], | 99.00th=[ 288], 99.50th=[ 393], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 31, max= 414, per=36.23%, avg=112.33, stdev=72.15, samples=104 iops : min= 1, max= 25, avg= 6.27, stdev= 4.57, samples=104 write: IOPS=5, BW=95.4KiB/s (97.7kB/s)(6256KiB/65599msec); 0 zone resets clat (msec): min=34, max=546, avg=131.02, stdev=92.47 lat (msec): min=34, max=546, avg=131.03, stdev=92.46 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 51], 10.00th=[ 60], 20.00th=[ 68], | 30.00th=[ 79], 40.00th=[ 88], 50.00th=[ 97], 60.00th=[ 113], | 70.00th=[ 134], 80.00th=[ 186], 90.00th=[ 249], 95.00th=[ 334], | 99.00th=[ 510], 99.50th=[ 535], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 30, max= 221, per=31.06%, avg=100.94, stdev=55.85, samples=120 iops : min= 1, max= 13, avg= 5.52, stdev= 3.57, samples=120 lat (msec) : 10=4.56%, 20=20.05%, 50=18.10%, 100=29.69%, 250=21.74% lat (msec) : 500=5.34%, 750=0.52% cpu : usr=0.05%, sys=1.29%, ctx=1412, 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=310KiB/s (318kB/s), 51.7KiB/s-96.1KiB/s (52.0kB/s-98.4kB/s), io=20.0MiB (21.0MB), run=44834-66191msec WRITE: bw=326KiB/s (334kB/s), 64.0KiB/s-96.2KiB/s (66.5kB/s-98.5kB/s), io=21.1MiB (22.1MB), run=44834-66191msec 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=145068: Thu Sep 3 16:39:20 2026 read: IOPS=3, BW=3300KiB/s (3379kB/s)(7168KiB/2172msec) clat (usec): min=552, max=203418, avg=147918.22, stdev=69240.48 lat (usec): min=553, max=203419, avg=147919.70, stdev=69240.62 clat percentiles (usec): | 1.00th=[ 553], 5.00th=[ 553], 10.00th=[ 553], 20.00th=[143655], | 30.00th=[143655], 40.00th=[143655], 50.00th=[168821], 60.00th=[173016], | 70.00th=[173016], 80.00th=[200279], 90.00th=[202376], 95.00th=[202376], | 99.00th=[202376], 99.50th=[202376], 99.90th=[202376], 99.95th=[202376], | 99.99th=[202376] bw ( KiB/s): min= 1984, max= 5555, per=78.08%, avg=3823.00, stdev=1787.90, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=2, BW=2357KiB/s (2414kB/s)(5120KiB/2172msec); 0 zone resets clat (msec): min=103, max=349, avg=216.93, stdev=95.37 lat (msec): min=103, max=349, avg=217.02, stdev=95.38 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 104], 10.00th=[ 104], 20.00th=[ 104], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 182], 60.00th=[ 182], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1965, max= 5953, per=48.40%, avg=3317.67, stdev=2282.53, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (usec) : 750=8.33% lat (msec) : 250=75.00%, 500=16.67% cpu : usr=0.00%, sys=20.13%, ctx=255, 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=145069: Thu Sep 3 16:39:20 2026 read: IOPS=0, BW=490KiB/s (501kB/s)(2048KiB/4183msec) clat (msec): min=194, max=344, avg=269.11, stdev=106.19 lat (msec): min=194, max=344, avg=269.11, stdev=106.19 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=[ 347], | 70.00th=[ 347], 80.00th=[ 347], 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= 1389, max= 2035, per=34.97%, avg=1712.00, stdev=456.79, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2448KiB/s (2507kB/s)(10.0MiB/4183msec); 0 zone resets clat (msec): min=140, max=756, avg=340.92, stdev=192.59 lat (msec): min=140, max=756, avg=341.03, stdev=192.62 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 180], | 30.00th=[ 213], 40.00th=[ 232], 50.00th=[ 239], 60.00th=[ 279], | 70.00th=[ 376], 80.00th=[ 472], 90.00th=[ 523], 95.00th=[ 760], | 99.00th=[ 760], 99.50th=[ 760], 99.90th=[ 760], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 1965, max= 4096, per=39.28%, avg=2692.50, stdev=1080.81, samples=6 iops : min= 1, max= 4, avg= 1.83, stdev= 1.33, samples=6 lat (msec) : 250=50.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=16.71%, ctx=218, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145070: Thu Sep 3 16:39:20 2026 read: IOPS=1, BW=1892KiB/s (1938kB/s)(6144KiB/3247msec) clat (usec): min=1544, max=336169, avg=179346.16, stdev=155201.55 lat (usec): min=1545, max=336170, avg=179347.48, stdev=155201.47 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1549], 10.00th=[ 1549], 20.00th=[ 1795], | 30.00th=[ 1795], 40.00th=[132645], 50.00th=[132645], 60.00th=[287310], | 70.00th=[316670], 80.00th=[316670], 90.00th=[337642], 95.00th=[337642], | 99.00th=[337642], 99.50th=[337642], 99.90th=[337642], 99.95th=[337642], | 99.99th=[337642] bw ( KiB/s): min= 3930, max= 5976, per=100.00%, avg=4953.00, stdev=1446.74, samples=2 iops : min= 3, max= 5, avg= 4.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1892KiB/s (1938kB/s)(6144KiB/3247msec); 0 zone resets clat (msec): min=173, max=448, avg=341.99, stdev=103.54 lat (msec): min=173, max=448, avg=342.09, stdev=103.55 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 384], | 70.00th=[ 414], 80.00th=[ 414], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1892, max= 2048, per=28.98%, avg=1986.00, stdev=55.79, samples=6 iops : min= 1, max= 2, avg= 1.17, stdev= 0.41, samples=6 lat (msec) : 2=16.67%, 250=16.67%, 500=66.67% cpu : usr=0.00%, sys=14.85%, ctx=185, 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=145071: Thu Sep 3 16:39:20 2026 read: IOPS=1, BW=2019KiB/s (2067kB/s)(5120KiB/2536msec) clat (usec): min=340, max=251644, avg=50712.51, stdev=112324.48 lat (usec): min=340, max=251645, avg=50713.39, stdev=112324.26 clat percentiles (usec): | 1.00th=[ 343], 5.00th=[ 343], 10.00th=[ 343], 20.00th=[ 343], | 30.00th=[ 408], 40.00th=[ 408], 50.00th=[ 537], 60.00th=[ 537], | 70.00th=[ 635], 80.00th=[ 635], 90.00th=[250610], 95.00th=[250610], | 99.00th=[250610], 99.50th=[250610], 99.90th=[250610], 99.95th=[250610], | 99.99th=[250610] write: IOPS=2, BW=2826KiB/s (2894kB/s)(7168KiB/2536msec); 0 zone resets clat (msec): min=70, max=690, avg=306.18, stdev=218.18 lat (msec): min=70, max=690, avg=306.26, stdev=218.18 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 70], 10.00th=[ 70], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 232], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 472], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 1965, max= 4071, per=39.00%, avg=2673.33, stdev=1210.45, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 500=16.67%, 750=16.67% lat (msec) : 100=8.33%, 250=25.00%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=16.92%, ctx=171, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4896KiB/s (5014kB/s), 490KiB/s-3300KiB/s (501kB/s-3379kB/s), io=20.0MiB (20.0MB), run=2172-4183msec WRITE: bw=6854KiB/s (7019kB/s), 1892KiB/s-2826KiB/s (1938kB/s-2894kB/s), io=28.0MiB (29.4MB), run=2172-4183msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145072: Thu Sep 3 16:39:20 2026 read: IOPS=1, BW=1961KiB/s (2008kB/s)(7168KiB/3656msec) clat (msec): min=77, max=266, avg=143.81, stdev=60.96 lat (msec): min=77, max=266, avg=143.81, stdev=60.96 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 107], | 30.00th=[ 121], 40.00th=[ 121], 50.00th=[ 132], 60.00th=[ 136], | 70.00th=[ 136], 80.00th=[ 171], 90.00th=[ 268], 95.00th=[ 268], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 1861, max= 3953, per=60.41%, avg=2931.50, stdev=1131.31, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1400KiB/s (1434kB/s)(5120KiB/3656msec); 0 zone resets clat (msec): min=216, max=742, avg=481.38, stdev=248.83 lat (msec): min=216, max=742, avg=481.48, stdev=248.83 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 218], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 523], 60.00th=[ 523], | 70.00th=[ 693], 80.00th=[ 693], 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= 1932, max= 4087, per=37.13%, avg=2522.50, stdev=1044.19, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=58.33%, 500=8.33%, 750=25.00% cpu : usr=0.03%, sys=5.20%, ctx=75, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145073: Thu Sep 3 16:39:20 2026 read: IOPS=0, BW=500KiB/s (512kB/s)(2048KiB/4095msec) clat (msec): min=128, max=238, avg=183.33, stdev=77.33 lat (msec): min=128, max=238, avg=183.34, stdev=77.32 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 129], 60.00th=[ 239], | 70.00th=[ 239], 80.00th=[ 239], 90.00th=[ 239], 95.00th=[ 239], | 99.00th=[ 239], 99.50th=[ 239], 99.90th=[ 239], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 1845, max= 2043, per=40.06%, avg=1944.00, stdev=140.01, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2501KiB/s (2561kB/s)(10.0MiB/4095msec); 0 zone resets clat (msec): min=155, max=579, avg=370.13, stdev=158.88 lat (msec): min=155, max=579, avg=370.23, stdev=158.87 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 207], | 30.00th=[ 239], 40.00th=[ 262], 50.00th=[ 355], 60.00th=[ 359], | 70.00th=[ 414], 80.00th=[ 567], 90.00th=[ 575], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1976, max= 4000, per=40.95%, avg=2782.20, stdev=1051.04, samples=5 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=5 lat (msec) : 250=41.67%, 500=33.33%, 750=25.00% cpu : usr=0.00%, sys=4.05%, ctx=62, 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=145074: Thu Sep 3 16:39:20 2026 read: IOPS=1, BW=1565KiB/s (1603kB/s)(6144KiB/3926msec) clat (msec): min=79, max=390, avg=217.70, stdev=128.59 lat (msec): min=79, max=390, avg=217.70, stdev=128.60 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 96], | 30.00th=[ 96], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 259], | 70.00th=[ 330], 80.00th=[ 330], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 2000, max= 4096, per=52.35%, avg=2540.50, stdev=1037.15, samples=4 iops : min= 1, max= 4, avg= 1.75, stdev= 1.50, samples=4 write: IOPS=1, BW=1565KiB/s (1603kB/s)(6144KiB/3926msec); 0 zone resets clat (msec): min=209, max=592, avg=391.04, stdev=173.26 lat (msec): min=209, max=592, avg=391.32, stdev=173.15 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 220], | 30.00th=[ 220], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 426], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 2000, max= 3953, per=36.87%, avg=2504.75, stdev=965.66, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=16.67%, 250=25.00%, 500=41.67%, 750=16.67% cpu : usr=0.00%, sys=4.84%, ctx=83, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145075: Thu Sep 3 16:39:20 2026 read: IOPS=1, BW=1213KiB/s (1242kB/s)(5120KiB/4220msec) clat (msec): min=67, max=445, avg=165.60, stdev=161.00 lat (msec): min=67, max=445, avg=165.60, stdev=161.00 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 77], 40.00th=[ 77], 50.00th=[ 78], 60.00th=[ 78], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 2048, max= 6071, per=83.65%, avg=4059.50, stdev=2844.69, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=1, BW=1699KiB/s (1739kB/s)(7168KiB/4220msec); 0 zone resets clat (msec): min=167, max=981, avg=450.19, stdev=282.84 lat (msec): min=167, max=981, avg=450.28, stdev=282.84 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 188], | 30.00th=[ 342], 40.00th=[ 342], 50.00th=[ 347], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 584], 90.00th=[ 986], 95.00th=[ 986], | 99.00th=[ 986], 99.50th=[ 986], 99.90th=[ 986], 99.95th=[ 986], | 99.99th=[ 986] bw ( KiB/s): min= 1932, max= 4087, per=35.58%, avg=2417.20, stdev=934.70, samples=5 iops : min= 1, max= 3, avg= 1.60, stdev= 0.89, samples=5 lat (msec) : 100=25.00%, 250=25.00%, 500=25.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.63%, ctx=63, 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=4853KiB/s (4970kB/s), 500KiB/s-1961KiB/s (512kB/s-2008kB/s), io=20.0MiB (20.0MB), run=3656-4220msec WRITE: bw=6794KiB/s (6957kB/s), 1400KiB/s-2501KiB/s (1434kB/s-2561kB/s), io=28.0MiB (29.4MB), run=3656-4220msec 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=145086: Thu Sep 3 16:39:32 2026 read: IOPS=1, BW=5430KiB/s (5560kB/s)(12.0MiB/2263msec) clat (msec): min=699, max=794, avg=753.85, stdev=49.15 lat (msec): min=699, max=794, avg=753.85, stdev=49.15 clat percentiles (msec): | 1.00th=[ 701], 5.00th=[ 701], 10.00th=[ 701], 20.00th=[ 701], | 30.00th=[ 701], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 8126, max= 8192, per=100.00%, avg=8159.00, stdev=46.67, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=16.62%, ctx=379, 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=145087: Thu Sep 3 16:39:32 2026 read: IOPS=0, BW=1462KiB/s (1497kB/s)(4096KiB/2801msec) clat (nsec): min=826657k, max=826657k, avg=826657046.00, stdev= 0.00 lat (nsec): min=826659k, max=826659k, avg=826659013.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 827], 5.00th=[ 827], 10.00th=[ 827], 20.00th=[ 827], | 30.00th=[ 827], 40.00th=[ 827], 50.00th=[ 827], 60.00th=[ 827], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2925KiB/s (2995kB/s)(8192KiB/2801msec); 0 zone resets clat (msec): min=847, max=1122, avg=984.79, stdev=194.66 lat (msec): min=847, max=1124, avg=986.22, stdev=195.60 clat percentiles (msec): | 1.00th=[ 844], 5.00th=[ 844], 10.00th=[ 844], 20.00th=[ 844], | 30.00th=[ 844], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 1116], | 70.00th=[ 1116], 80.00th=[ 1116], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 8192, max= 8192, per=85.31%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.54%, ctx=95, 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=145088: Thu Sep 3 16:39:32 2026 write: IOPS=0, BW=3601KiB/s (3688kB/s)(12.0MiB/3412msec); 0 zone resets clat (msec): min=316, max=1682, avg=1124.29, stdev=716.60 lat (msec): min=316, max=1682, avg=1125.26, stdev=716.99 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 317], 10.00th=[ 317], 20.00th=[ 317], | 30.00th=[ 317], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 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= 8192, max= 8192, per=85.31%, 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=66.67% cpu : usr=0.15%, sys=3.84%, ctx=31, 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=145089: Thu Sep 3 16:39:32 2026 write: IOPS=1, BW=4457KiB/s (4564kB/s)(12.0MiB/2757msec); 0 zone resets clat (msec): min=370, max=1554, avg=911.49, stdev=598.20 lat (msec): min=371, max=1554, avg=912.00, stdev=598.08 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 1552], 80.00th=[ 1552], 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= 8110, max= 8126, per=84.54%, avg=8118.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.32%, ctx=44, 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=5849KiB/s (5990kB/s), 1462KiB/s-5430KiB/s (1497kB/s-5560kB/s), io=16.0MiB (16.8MB), run=2263-2801msec WRITE: bw=9604KiB/s (9834kB/s), 2925KiB/s-4457KiB/s (2995kB/s-4564kB/s), io=32.0MiB (33.6MB), run=2757-3412msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145081: Thu Sep 3 16:39:32 2026 read: IOPS=0, BW=3896KiB/s (3990kB/s)(12.0MiB/3154msec) clat (msec): min=602, max=1275, avg=1033.60, stdev=374.47 lat (msec): min=602, max=1275, avg=1033.61, stdev=374.47 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 1217], 50.00th=[ 1217], 60.00th=[ 1217], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7984, max= 8192, per=100.00%, avg=8088.00, stdev=147.08, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.04%, ctx=52, 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=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=145082: Thu Sep 3 16:39:32 2026 read: IOPS=0, BW=1075KiB/s (1100kB/s)(4096KiB/3812msec) clat (nsec): min=1478.9M, max=1478.9M, avg=1478879888.00, stdev= 0.00 lat (nsec): min=1478.9M, max=1478.9M, avg=1478882388.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1485], 5.00th=[ 1485], 10.00th=[ 1485], 20.00th=[ 1485], | 30.00th=[ 1485], 40.00th=[ 1485], 50.00th=[ 1485], 60.00th=[ 1485], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7984, max= 7984, per=100.00%, avg=7984.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2149KiB/s (2201kB/s)(8192KiB/3812msec); 0 zone resets clat (msec): min=913, max=1331, avg=1122.56, stdev=295.71 lat (msec): min=913, max=1332, avg=1123.03, stdev=295.68 clat percentiles (msec): | 1.00th=[ 911], 5.00th=[ 911], 10.00th=[ 911], 20.00th=[ 911], | 30.00th=[ 911], 40.00th=[ 911], 50.00th=[ 911], 60.00th=[ 1334], | 70.00th=[ 1334], 80.00th=[ 1334], 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= 7861, max= 7861, per=91.45%, avg=7861.00, 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=0.03%, sys=4.28%, ctx=60, 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=145083: Thu Sep 3 16:39:32 2026 write: IOPS=1, BW=7136KiB/s (7307kB/s)(12.0MiB/1722msec); 0 zone resets clat (msec): min=285, max=936, avg=534.63, stdev=351.66 lat (msec): min=285, max=940, avg=536.26, stdev=353.46 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 284], | 30.00th=[ 284], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 384], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7656, max= 8110, per=91.71%, avg=7883.00, stdev=321.03, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.00%, sys=8.08%, ctx=72, 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=145085: Thu Sep 3 16:39:32 2026 write: IOPS=1, BW=4874KiB/s (4991kB/s)(12.0MiB/2521msec); 0 zone resets clat (msec): min=414, max=1210, avg=802.20, stdev=398.47 lat (msec): min=415, max=1223, avg=807.18, stdev=404.56 clat percentiles (msec): | 1.00th=[ 414], 5.00th=[ 414], 10.00th=[ 414], 20.00th=[ 414], | 30.00th=[ 414], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 1217], 80.00th=[ 1217], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7816, max= 8110, per=92.64%, avg=7963.00, stdev=207.89, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.60%, ctx=42, 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=4298KiB/s (4401kB/s), 1075KiB/s-3896KiB/s (1100kB/s-3990kB/s), io=16.0MiB (16.8MB), run=3154-3812msec WRITE: bw=8596KiB/s (8802kB/s), 2149KiB/s-7136KiB/s (2201kB/s-7307kB/s), io=32.0MiB (33.6MB), run=1722-3812msec