== sanity test 398b: DIO and buffer IO race ============== 22:12:54 (1786759974) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 9.21019 s, 5.5 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=144318: Fri Aug 14 22:15:26 2026 read: IOPS=12, BW=49.3KiB/s (50.4kB/s)(5992KiB/121625msec) clat (usec): min=33, max=1329.2k, avg=40150.31, stdev=45645.12 lat (usec): min=33, max=1329.2k, avg=40151.92, stdev=45645.06 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 60], 10.00th=[ 537], | 20.00th=[ 18482], 30.00th=[ 23725], 40.00th=[ 28443], | 50.00th=[ 33162], 60.00th=[ 40109], 70.00th=[ 47449], | 80.00th=[ 57410], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[ 135267], 99.50th=[ 183501], 99.90th=[ 442500], | 99.95th=[1333789], 99.99th=[1333789] bw ( KiB/s): min= 6, max= 120, per=25.88%, avg=49.43, stdev=20.61, samples=237 iops : min= 1, max= 30, avg=11.72, stdev= 5.19, samples=237 write: IOPS=12, BW=51.8KiB/s (53.0kB/s)(6296KiB/121625msec); 0 zone resets clat (usec): min=822, max=388677, avg=38693.72, stdev=40725.16 lat (usec): min=823, max=388680, avg=38698.82, stdev=40732.05 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1713], 20.00th=[ 4113], | 30.00th=[ 8586], 40.00th=[ 17957], 50.00th=[ 28705], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 64750], 90.00th=[ 88605], 95.00th=[112722], | 99.00th=[187696], 99.50th=[223347], 99.90th=[312476], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 7, max= 118, per=25.96%, avg=51.92, stdev=21.95, samples=237 iops : min= 1, max= 29, avg=12.35, stdev= 5.51, samples=237 lat (usec) : 50=0.78%, 100=3.52%, 250=0.46%, 500=0.10%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=5.89%, 4=4.33%, 10=6.48%, 20=11.07%, 50=37.92% lat (msec) : 100=24.22%, 250=4.85%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=5.54%, ctx=6556, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144320: Fri Aug 14 22:15:26 2026 read: IOPS=11, BW=47.8KiB/s (48.0kB/s)(5940KiB/124248msec) clat (usec): min=23, max=1418.4k, avg=40868.83, stdev=48138.80 lat (usec): min=23, max=1418.4k, avg=40876.66, stdev=48137.81 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 59], 10.00th=[ 143], | 20.00th=[ 17957], 30.00th=[ 23462], 40.00th=[ 28443], | 50.00th=[ 34341], 60.00th=[ 40109], 70.00th=[ 49546], | 80.00th=[ 59507], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[ 147850], 99.50th=[ 200279], 99.90th=[ 408945], | 99.95th=[1417675], 99.99th=[1417675] bw ( KiB/s): min= 7, max= 103, per=25.31%, avg=48.33, stdev=21.08, samples=240 iops : min= 1, max= 25, avg=11.45, stdev= 5.30, samples=240 write: IOPS=12, BW=51.1KiB/s (52.3kB/s)(6348KiB/124248msec); 0 zone resets clat (usec): min=694, max=377265, avg=39648.85, stdev=42164.19 lat (usec): min=695, max=377267, avg=39654.68, stdev=42160.84 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1336], 10.00th=[ 1680], 20.00th=[ 4490], | 30.00th=[ 9372], 40.00th=[ 18482], 50.00th=[ 28181], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 67634], 90.00th=[ 92799], 95.00th=[125305], | 99.00th=[189793], 99.50th=[204473], 99.90th=[316670], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 7, max= 159, per=25.76%, avg=51.51, stdev=21.53, samples=241 iops : min= 1, max= 39, avg=12.25, stdev= 5.41, samples=241 lat (usec) : 50=0.78%, 100=3.84%, 250=0.33%, 500=0.20%, 750=0.10% lat (usec) : 1000=0.36% lat (msec) : 2=5.86%, 4=3.78%, 10=6.58%, 20=10.97%, 50=37.40% lat (msec) : 100=23.57%, 250=6.02%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=5.56%, ctx=6468, 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=144322: Fri Aug 14 22:15:26 2026 read: IOPS=12, BW=49.3KiB/s (50.5kB/s)(6028KiB/122314msec) clat (usec): min=27, max=1346.0k, avg=39046.43, stdev=44608.98 lat (usec): min=27, max=1346.0k, avg=39048.24, stdev=44608.95 clat percentiles (usec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 78], | 20.00th=[ 18744], 30.00th=[ 23462], 40.00th=[ 28443], | 50.00th=[ 33162], 60.00th=[ 39060], 70.00th=[ 46400], | 80.00th=[ 57934], 90.00th=[ 72877], 95.00th=[ 86508], | 99.00th=[ 126354], 99.50th=[ 162530], 99.90th=[ 442500], | 99.95th=[1350566], 99.99th=[1350566] bw ( KiB/s): min= 6, max= 126, per=26.01%, avg=49.68, stdev=20.96, samples=237 iops : min= 1, max= 31, avg=11.78, stdev= 5.25, samples=237 write: IOPS=12, BW=51.2KiB/s (52.4kB/s)(6260KiB/122314msec); 0 zone resets clat (usec): min=939, max=535147, avg=40205.43, stdev=44139.60 lat (usec): min=941, max=535149, avg=40209.35, stdev=44138.82 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1369], 10.00th=[ 1909], 20.00th=[ 4883], | 30.00th=[ 9634], 40.00th=[ 18220], 50.00th=[ 28705], 60.00th=[ 40109], | 70.00th=[ 51643], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[185598], 99.50th=[242222], 99.90th=[371196], 99.95th=[534774], | 99.99th=[534774] bw ( KiB/s): min= 7, max= 130, per=25.66%, avg=51.33, stdev=20.74, samples=238 iops : min= 1, max= 32, avg=12.19, stdev= 5.22, samples=238 lat (usec) : 50=0.98%, 100=4.23%, 250=0.33%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.03% lat (msec) : 2=5.34%, 4=3.52%, 10=6.90%, 20=10.71%, 50=38.77% lat (msec) : 100=23.83%, 250=4.95%, 500=0.26%, 750=0.03%, 2000=0.03% cpu : usr=0.08%, sys=5.72%, ctx=6538, 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=144323: Fri Aug 14 22:15:26 2026 read: IOPS=12, BW=48.4KiB/s (49.5kB/s)(6052KiB/125151msec) clat (usec): min=30, max=288653, avg=39195.28, stdev=31481.34 lat (usec): min=31, max=288655, avg=39197.21, stdev=31482.29 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 80], 20.00th=[ 17695], | 30.00th=[ 23200], 40.00th=[ 28705], 50.00th=[ 33424], 60.00th=[ 39584], | 70.00th=[ 47973], 80.00th=[ 57934], 90.00th=[ 74974], 95.00th=[ 91751], | 99.00th=[164627], 99.50th=[193987], 99.90th=[256902], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 135, per=25.69%, avg=49.07, stdev=20.41, samples=241 iops : min= 1, max= 33, avg=11.63, stdev= 5.13, samples=241 write: IOPS=12, BW=49.8KiB/s (51.0kB/s)(6236KiB/125151msec); 0 zone resets clat (usec): min=913, max=1573.3k, avg=41876.30, stdev=58398.34 lat (usec): min=915, max=1573.3k, avg=41882.01, stdev=58397.19 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1385], 10.00th=[ 1876], | 20.00th=[ 4228], 30.00th=[ 8717], 40.00th=[ 18220], | 50.00th=[ 29230], 60.00th=[ 40633], 70.00th=[ 53216], | 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[ 124257], | 99.00th=[ 204473], 99.50th=[ 240124], 99.90th=[ 404751], | 99.95th=[1568670], 99.99th=[1568670] bw ( KiB/s): min= 7, max= 109, per=24.96%, avg=49.93, stdev=20.59, samples=244 iops : min= 1, max= 27, avg=11.85, stdev= 5.17, samples=244 lat (usec) : 50=0.59%, 100=4.65%, 250=0.42%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.20% lat (msec) : 2=5.57%, 4=3.97%, 10=6.51%, 20=10.90%, 50=37.34% lat (msec) : 100=23.34%, 250=6.18%, 500=0.20%, 2000=0.03% cpu : usr=0.08%, sys=5.62%, ctx=6538, 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=192KiB/s (196kB/s), 47.8KiB/s-49.3KiB/s (48.0kB/s-50.5kB/s), io=23.4MiB (24.6MB), run=121625-125151msec WRITE: bw=201KiB/s (206kB/s), 49.8KiB/s-51.8KiB/s (51.0kB/s-53.0kB/s), io=24.6MiB (25.7MB), run=121625-125151msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144316: Fri Aug 14 22:17:50 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(5992KiB/267516msec) clat (msec): min=5, max=1298, avg=35.90, stdev=45.30 lat (msec): min=5, max=1298, avg=35.90, stdev=45.30 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 51], 90.00th=[ 72], 95.00th=[ 94], | 99.00th=[ 161], 99.50th=[ 197], 99.90th=[ 347], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 7, max= 88, per=28.34%, avg=25.22, stdev=16.70, samples=460 iops : min= 1, max= 22, avg= 5.70, stdev= 4.23, samples=460 write: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6296KiB/267516msec); 0 zone resets clat (msec): min=28, max=626, avg=135.46, stdev=70.55 lat (msec): min=28, max=626, avg=135.47, stdev=70.55 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 105], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 155], 80.00th=[ 184], 90.00th=[ 226], 95.00th=[ 271], | 99.00th=[ 372], 99.50th=[ 447], 99.90th=[ 567], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 7, max= 55, per=25.17%, avg=23.40, stdev=10.96, samples=519 iops : min= 1, max= 13, avg= 5.24, stdev= 2.80, samples=519 lat (msec) : 10=3.65%, 20=14.19%, 50=22.17%, 100=25.49%, 250=31.25% lat (msec) : 500=3.06%, 750=0.16%, 2000=0.03% cpu : usr=0.05%, sys=1.45%, ctx=5587, 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=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=144317: Fri Aug 14 22:17:50 2026 read: IOPS=5, BW=22.1KiB/s (22.6kB/s)(5940KiB/269036msec) clat (msec): min=5, max=1445, avg=36.84, stdev=52.14 lat (msec): min=5, max=1445, avg=36.84, stdev=52.14 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 74], 95.00th=[ 97], | 99.00th=[ 192], 99.50th=[ 275], 99.90th=[ 430], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 103, per=28.72%, avg=25.56, stdev=16.99, samples=450 iops : min= 1, max= 25, avg= 5.78, stdev= 4.29, samples=450 write: IOPS=5, BW=23.6KiB/s (24.2kB/s)(6348KiB/269036msec); 0 zone resets clat (msec): min=34, max=519, avg=134.70, stdev=69.56 lat (msec): min=34, max=519, avg=134.70, stdev=69.56 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 80], | 30.00th=[ 92], 40.00th=[ 104], 50.00th=[ 118], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 180], 90.00th=[ 226], 95.00th=[ 275], | 99.00th=[ 388], 99.50th=[ 414], 99.90th=[ 514], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 7, max= 64, per=25.04%, avg=23.29, stdev=11.15, samples=526 iops : min= 1, max= 16, avg= 5.21, stdev= 2.86, samples=526 lat (msec) : 10=2.60%, 20=15.72%, 50=22.14%, 100=24.67%, 250=30.92% lat (msec) : 500=3.84%, 750=0.07%, 2000=0.03% cpu : usr=0.05%, sys=1.40%, ctx=5490, 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=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=144319: Fri Aug 14 22:17:50 2026 read: IOPS=5, BW=22.4KiB/s (22.9kB/s)(6028KiB/269028msec) clat (msec): min=5, max=485, avg=37.32, stdev=38.31 lat (msec): min=5, max=485, avg=37.32, stdev=38.31 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 74], 95.00th=[ 100], | 99.00th=[ 178], 99.50th=[ 279], 99.90th=[ 372], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 7, max= 95, per=27.89%, avg=24.82, stdev=16.78, samples=470 iops : min= 1, max= 23, avg= 5.60, stdev= 4.22, samples=470 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6260KiB/269028msec); 0 zone resets clat (msec): min=32, max=1679, avg=135.62, stdev=78.54 lat (msec): min=32, max=1679, avg=135.63, stdev=78.55 clat percentiles (msec): | 1.00th=[ 42], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 105], 50.00th=[ 118], 60.00th=[ 134], | 70.00th=[ 155], 80.00th=[ 182], 90.00th=[ 228], 95.00th=[ 266], | 99.00th=[ 359], 99.50th=[ 422], 99.90th=[ 667], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 7, max= 62, per=24.82%, avg=23.09, stdev=10.93, samples=523 iops : min= 1, max= 15, avg= 5.16, stdev= 2.80, samples=523 lat (msec) : 10=2.99%, 20=14.55%, 50=22.17%, 100=25.78%, 250=30.63% lat (msec) : 500=3.81%, 750=0.03%, 2000=0.03% cpu : usr=0.04%, sys=1.40%, ctx=5436, 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=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=144321: Fri Aug 14 22:17:50 2026 read: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6052KiB/267972msec) clat (msec): min=5, max=490, avg=36.05, stdev=37.08 lat (msec): min=5, max=490, avg=36.05, stdev=37.08 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 29], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 72], 95.00th=[ 97], | 99.00th=[ 180], 99.50th=[ 197], 99.90th=[ 447], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 7, max= 111, per=28.83%, avg=25.66, stdev=17.41, samples=456 iops : min= 1, max= 27, avg= 5.80, stdev= 4.40, samples=456 write: IOPS=5, BW=23.3KiB/s (23.8kB/s)(6236KiB/267972msec); 0 zone resets clat (msec): min=27, max=1553, avg=136.59, stdev=79.97 lat (msec): min=27, max=1553, avg=136.60, stdev=79.97 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 59], 10.00th=[ 69], 20.00th=[ 82], | 30.00th=[ 93], 40.00th=[ 105], 50.00th=[ 117], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 182], 90.00th=[ 226], 95.00th=[ 275], | 99.00th=[ 388], 99.50th=[ 426], 99.90th=[ 785], 99.95th=[ 1552], | 99.99th=[ 1552] bw ( KiB/s): min= 7, max= 56, per=24.77%, avg=23.04, stdev=11.11, samples=521 iops : min= 1, max= 14, avg= 5.14, stdev= 2.85, samples=521 lat (msec) : 10=2.96%, 20=15.01%, 50=23.05%, 100=23.89%, 250=31.28% lat (msec) : 500=3.65%, 750=0.10%, 1000=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.39%, ctx=5481, 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=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=89.3KiB/s (91.4kB/s), 22.1KiB/s-22.6KiB/s (22.6kB/s-23.1kB/s), io=23.4MiB (24.6MB), run=267516-269036msec WRITE: bw=93.4KiB/s (95.7kB/s), 23.3KiB/s-23.6KiB/s (23.8kB/s-24.2kB/s), io=24.6MiB (25.7MB), run=267516-269036msec 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=144384: Fri Aug 14 22:18:26 2026 read: IOPS=14, BW=226KiB/s (231kB/s)(5920KiB/26193msec) clat (usec): min=33, max=135024, avg=33980.02, stdev=28469.65 lat (usec): min=33, max=135025, avg=33981.36, stdev=28469.69 clat percentiles (usec): | 1.00th=[ 39], 5.00th=[ 49], 10.00th=[ 60], 20.00th=[ 81], | 30.00th=[ 16909], 40.00th=[ 25297], 50.00th=[ 32637], 60.00th=[ 40109], | 70.00th=[ 48497], 80.00th=[ 57934], 90.00th=[ 74974], 95.00th=[ 83362], | 99.00th=[110625], 99.50th=[125305], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 63, max= 416, per=25.54%, avg=227.31, stdev=75.77, samples=51 iops : min= 3, max= 26, avg=13.49, stdev= 4.77, samples=51 write: IOPS=15, BW=243KiB/s (249kB/s)(6368KiB/26193msec); 0 zone resets clat (usec): min=1412, max=240347, avg=33548.00, stdev=35801.98 lat (usec): min=1413, max=240349, avg=33550.44, stdev=35801.85 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1991], 10.00th=[ 3064], 20.00th=[ 5997], | 30.00th=[ 10028], 40.00th=[ 13435], 50.00th=[ 20841], 60.00th=[ 30278], | 70.00th=[ 40109], 80.00th=[ 56886], 90.00th=[ 80217], 95.00th=[107480], | 99.00th=[166724], 99.50th=[187696], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 63, max= 541, per=26.15%, avg=244.76, stdev=104.83, samples=51 iops : min= 3, max= 33, avg=14.59, stdev= 6.59, samples=51 lat (usec) : 50=2.47%, 100=8.59%, 250=1.43%, 500=0.26% lat (msec) : 2=2.86%, 4=3.78%, 10=9.51%, 20=12.37%, 50=32.55% lat (msec) : 100=22.01%, 250=4.17% cpu : usr=0.05%, sys=7.28%, ctx=1481, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144386: Fri Aug 14 22:18:26 2026 read: IOPS=13, BW=214KiB/s (219kB/s)(5744KiB/26898msec) clat (usec): min=40, max=155516, avg=36971.24, stdev=28259.22 lat (usec): min=40, max=155516, avg=36974.03, stdev=28258.97 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 67], 20.00th=[ 3589], | 30.00th=[ 22676], 40.00th=[ 28967], 50.00th=[ 34866], 60.00th=[ 41681], | 70.00th=[ 49021], 80.00th=[ 58459], 90.00th=[ 72877], 95.00th=[ 87557], | 99.00th=[120062], 99.50th=[154141], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 21, max= 473, per=24.05%, avg=214.08, stdev=83.03, samples=52 iops : min= 1, max= 29, avg=12.65, stdev= 5.28, samples=52 write: IOPS=15, BW=243KiB/s (249kB/s)(6544KiB/26898msec); 0 zone resets clat (usec): min=1104, max=224083, avg=32388.10, stdev=35863.43 lat (usec): min=1106, max=224086, avg=32393.88, stdev=35861.44 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 1958], 10.00th=[ 2442], 20.00th=[ 4490], | 30.00th=[ 7046], 40.00th=[ 10814], 50.00th=[ 19530], 60.00th=[ 28705], | 70.00th=[ 39584], 80.00th=[ 58983], 90.00th=[ 85459], 95.00th=[101188], | 99.00th=[152044], 99.50th=[177210], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 21, max= 448, per=25.86%, avg=242.08, stdev=92.91, samples=52 iops : min= 1, max= 28, avg=14.42, stdev= 5.86, samples=52 lat (usec) : 50=0.52%, 100=7.55%, 250=0.52%, 500=0.13%, 750=0.39% lat (msec) : 2=3.12%, 4=6.12%, 10=10.81%, 20=10.42%, 50=33.98% lat (msec) : 100=22.27%, 250=4.17% cpu : usr=0.09%, sys=6.97%, ctx=1590, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144387: Fri Aug 14 22:18:26 2026 read: IOPS=14, BW=235KiB/s (241kB/s)(6256KiB/26623msec) clat (usec): min=33, max=288300, avg=35290.78, stdev=31380.59 lat (usec): min=33, max=288302, avg=35295.62, stdev=31380.88 clat percentiles (usec): | 1.00th=[ 36], 5.00th=[ 56], 10.00th=[ 67], 20.00th=[ 96], | 30.00th=[ 19268], 40.00th=[ 28443], 50.00th=[ 34341], 60.00th=[ 38536], | 70.00th=[ 46924], 80.00th=[ 54264], 90.00th=[ 68682], 95.00th=[ 85459], | 99.00th=[152044], 99.50th=[181404], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 31, max= 415, per=26.62%, avg=236.90, stdev=80.29, samples=52 iops : min= 1, max= 25, avg=14.10, stdev= 5.12, samples=52 write: IOPS=14, BW=227KiB/s (232kB/s)(6032KiB/26623msec); 0 zone resets clat (usec): min=1588, max=190191, avg=33820.24, stdev=35586.41 lat (usec): min=1588, max=190195, avg=33822.93, stdev=35586.73 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1958], 10.00th=[ 2769], 20.00th=[ 5538], | 30.00th=[ 8029], 40.00th=[ 13173], 50.00th=[ 20841], 60.00th=[ 31327], | 70.00th=[ 41157], 80.00th=[ 59507], 90.00th=[ 83362], 95.00th=[110625], | 99.00th=[156238], 99.50th=[181404], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 31, max= 576, per=24.19%, avg=226.46, stdev=96.26, samples=52 iops : min= 1, max= 36, avg=13.44, stdev= 6.07, samples=52 lat (usec) : 50=1.56%, 100=8.85%, 250=1.43%, 750=0.13%, 1000=0.13% lat (msec) : 2=2.73%, 4=4.43%, 10=10.81%, 20=9.64%, 50=35.29% lat (msec) : 100=20.70%, 250=4.17%, 500=0.13% cpu : usr=0.09%, sys=6.69%, ctx=1477, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144388: Fri Aug 14 22:18:26 2026 read: IOPS=14, BW=225KiB/s (231kB/s)(6032KiB/26774msec) clat (usec): min=39, max=246047, avg=36790.71, stdev=32442.08 lat (usec): min=39, max=246048, avg=36796.62, stdev=32437.05 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 60], 10.00th=[ 65], 20.00th=[ 101], | 30.00th=[ 20579], 40.00th=[ 28705], 50.00th=[ 32637], 60.00th=[ 40109], | 70.00th=[ 47973], 80.00th=[ 60031], 90.00th=[ 73925], 95.00th=[ 92799], | 99.00th=[141558], 99.50th=[181404], 99.90th=[246416], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 63, max= 410, per=25.13%, avg=223.65, stdev=82.14, samples=52 iops : min= 3, max= 25, avg=13.27, stdev= 5.15, samples=52 write: IOPS=14, BW=234KiB/s (239kB/s)(6256KiB/26774msec); 0 zone resets clat (usec): min=991, max=208050, avg=32258.00, stdev=34676.09 lat (usec): min=993, max=208054, avg=32290.74, stdev=34708.38 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 1811], 10.00th=[ 2507], 20.00th=[ 5145], | 30.00th=[ 8094], 40.00th=[ 12387], 50.00th=[ 17957], 60.00th=[ 28705], | 70.00th=[ 38536], 80.00th=[ 57934], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[147850], 99.50th=[175113], 99.90th=[208667], 99.95th=[208667], | 99.99th=[208667] bw ( KiB/s): min= 31, max= 510, per=24.94%, avg=233.42, stdev=95.40, samples=52 iops : min= 1, max= 31, avg=13.87, stdev= 6.03, samples=52 lat (usec) : 50=0.78%, 100=8.98%, 250=1.30%, 750=0.26%, 1000=0.13% lat (msec) : 2=3.52%, 4=4.43%, 10=11.59%, 20=10.81%, 50=32.42% lat (msec) : 100=20.96%, 250=4.82% cpu : usr=0.07%, sys=6.96%, ctx=1491, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=890KiB/s (912kB/s), 214KiB/s-235KiB/s (219kB/s-241kB/s), io=23.4MiB (24.5MB), run=26193-26898msec WRITE: bw=937KiB/s (959kB/s), 227KiB/s-243KiB/s (232kB/s-249kB/s), io=24.6MiB (25.8MB), run=26193-26898msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144381: Fri Aug 14 22:19:05 2026 read: IOPS=5, BW=91.8KiB/s (94.0kB/s)(5920KiB/64463msec) clat (msec): min=7, max=254, avg=36.28, stdev=34.85 lat (msec): min=7, max=254, avg=36.28, stdev=34.85 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=[ 33], 80.00th=[ 50], 90.00th=[ 91], 95.00th=[ 112], | 99.00th=[ 171], 99.50th=[ 211], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 30, max= 288, per=26.75%, avg=97.64, stdev=64.04, samples=118 iops : min= 1, max= 18, avg= 5.38, stdev= 4.13, samples=118 write: IOPS=6, BW=98.8KiB/s (101kB/s)(6368KiB/64463msec); 0 zone resets clat (msec): min=34, max=410, avg=127.54, stdev=63.59 lat (msec): min=34, max=410, avg=127.55, stdev=63.59 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 57], 10.00th=[ 64], 20.00th=[ 77], | 30.00th=[ 86], 40.00th=[ 95], 50.00th=[ 110], 60.00th=[ 123], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 222], 95.00th=[ 259], | 99.00th=[ 338], 99.50th=[ 359], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 30, max= 253, per=25.77%, avg=98.97, stdev=48.78, samples=126 iops : min= 1, max= 15, avg= 5.45, stdev= 3.12, samples=126 lat (msec) : 10=2.21%, 20=17.84%, 50=19.66%, 100=27.60%, 250=29.56% lat (msec) : 500=3.12% cpu : usr=0.04%, sys=1.40%, ctx=1359, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144382: Fri Aug 14 22:19:05 2026 read: IOPS=5, BW=87.6KiB/s (89.7kB/s)(5744KiB/65593msec) clat (msec): min=6, max=317, avg=36.22, stdev=39.92 lat (msec): min=6, max=317, avg=36.24, stdev=39.91 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 47], 90.00th=[ 84], 95.00th=[ 118], | 99.00th=[ 228], 99.50th=[ 247], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 21, max= 350, per=28.14%, avg=102.71, stdev=67.09, samples=109 iops : min= 1, max= 21, avg= 5.72, stdev= 4.25, samples=109 write: IOPS=6, BW=99.8KiB/s (102kB/s)(6544KiB/65593msec); 0 zone resets clat (msec): min=30, max=455, avg=128.00, stdev=67.41 lat (msec): min=30, max=455, avg=128.01, stdev=67.41 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 52], 10.00th=[ 59], 20.00th=[ 77], | 30.00th=[ 88], 40.00th=[ 97], 50.00th=[ 111], 60.00th=[ 129], | 70.00th=[ 150], 80.00th=[ 174], 90.00th=[ 226], 95.00th=[ 257], | 99.00th=[ 334], 99.50th=[ 368], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 21, max= 318, per=26.13%, avg=100.35, stdev=51.06, samples=127 iops : min= 1, max= 19, avg= 5.54, stdev= 3.28, samples=127 lat (msec) : 10=3.39%, 20=18.36%, 50=18.62%, 100=25.78%, 250=30.34% lat (msec) : 500=3.52% cpu : usr=0.06%, sys=1.48%, ctx=1347, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144383: Fri Aug 14 22:19:05 2026 read: IOPS=6, BW=99.7KiB/s (102kB/s)(6256KiB/62746msec) clat (msec): min=7, max=254, avg=33.38, stdev=33.83 lat (msec): min=7, max=254, avg=33.38, stdev=33.83 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 31], 80.00th=[ 45], 90.00th=[ 71], 95.00th=[ 104], | 99.00th=[ 201], 99.50th=[ 236], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 30, max= 351, per=28.28%, avg=103.21, stdev=75.15, samples=120 iops : min= 1, max= 21, avg= 5.72, stdev= 4.78, samples=120 write: IOPS=6, BW=96.1KiB/s (98.4kB/s)(6032KiB/62746msec); 0 zone resets clat (msec): min=36, max=487, avg=131.59, stdev=66.44 lat (msec): min=36, max=487, avg=131.60, stdev=66.44 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 60], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 90], 40.00th=[ 99], 50.00th=[ 112], 60.00th=[ 125], | 70.00th=[ 142], 80.00th=[ 178], 90.00th=[ 239], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 342], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 31, max= 191, per=24.93%, avg=95.73, stdev=43.03, samples=124 iops : min= 1, max= 11, avg= 5.25, stdev= 2.77, samples=124 lat (msec) : 10=2.47%, 20=21.48%, 50=18.88%, 100=25.26%, 250=28.13% lat (msec) : 500=3.78% cpu : usr=0.04%, sys=1.55%, ctx=1416, 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=144385: Fri Aug 14 22:19:05 2026 read: IOPS=5, BW=94.1KiB/s (96.4kB/s)(6032KiB/64083msec) clat (msec): min=6, max=299, avg=34.72, stdev=32.87 lat (msec): min=6, max=299, avg=34.72, stdev=32.87 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 36], 80.00th=[ 46], 90.00th=[ 73], 95.00th=[ 96], | 99.00th=[ 157], 99.50th=[ 243], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 31, max= 379, per=28.20%, avg=102.93, stdev=67.85, samples=114 iops : min= 1, max= 23, avg= 5.72, stdev= 4.32, samples=114 write: IOPS=6, BW=97.6KiB/s (99.0kB/s)(6256KiB/64083msec); 0 zone resets clat (msec): min=36, max=493, avg=129.32, stdev=60.43 lat (msec): min=36, max=493, avg=129.33, stdev=60.43 clat percentiles (msec): | 1.00th=[ 50], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 92], 40.00th=[ 106], 50.00th=[ 118], 60.00th=[ 130], | 70.00th=[ 144], 80.00th=[ 165], 90.00th=[ 207], 95.00th=[ 251], | 99.00th=[ 338], 99.50th=[ 347], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 21, max= 222, per=25.70%, avg=98.69, stdev=45.21, samples=124 iops : min= 1, max= 13, avg= 5.44, stdev= 2.91, samples=124 lat (msec) : 10=2.47%, 20=17.58%, 50=20.31%, 100=25.13%, 250=31.77% lat (msec) : 500=2.73% cpu : usr=0.04%, sys=1.47%, ctx=1354, 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=365KiB/s (374kB/s), 87.6KiB/s-99.7KiB/s (89.7kB/s-102kB/s), io=23.4MiB (24.5MB), run=62746-65593msec WRITE: bw=384KiB/s (393kB/s), 96.1KiB/s-99.8KiB/s (98.4kB/s-102kB/s), io=24.6MiB (25.8MB), run=62746-65593msec 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=144405: Fri Aug 14 22:19:17 2026 read: IOPS=3, BW=3078KiB/s (3152kB/s)(7168KiB/2329msec) clat (usec): min=980, max=326882, avg=187156.14, stdev=106815.24 lat (usec): min=982, max=326883, avg=187157.83, stdev=106815.04 clat percentiles (usec): | 1.00th=[ 979], 5.00th=[ 979], 10.00th=[ 979], 20.00th=[125305], | 30.00th=[170918], 40.00th=[170918], 50.00th=[177210], 60.00th=[231736], | 70.00th=[231736], 80.00th=[278922], 90.00th=[325059], 95.00th=[325059], | 99.00th=[325059], 99.50th=[325059], 99.90th=[325059], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 1477, max= 4063, per=60.06%, avg=2906.50, stdev=1345.89, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=2, BW=2198KiB/s (2251kB/s)(5120KiB/2329msec); 0 zone resets clat (msec): min=117, max=194, avg=149.76, stdev=29.18 lat (msec): min=117, max=194, avg=149.83, stdev=29.18 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 118], 10.00th=[ 118], 20.00th=[ 118], | 30.00th=[ 138], 40.00th=[ 138], 50.00th=[ 140], 60.00th=[ 140], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 194], 95.00th=[ 194], | 99.00th=[ 194], 99.50th=[ 194], 99.90th=[ 194], 99.95th=[ 194], | 99.99th=[ 194] bw ( KiB/s): min= 2023, max= 4079, per=40.01%, avg=2711.00, stdev=1184.73, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 1000=8.33% lat (msec) : 250=75.00%, 500=16.67% cpu : usr=0.04%, sys=19.46%, ctx=232, 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=144407: Fri Aug 14 22:19:17 2026 read: IOPS=0, BW=484KiB/s (496kB/s)(2048KiB/4232msec) clat (usec): min=538, max=193494, avg=97016.16, stdev=136440.64 lat (usec): min=540, max=193496, avg=97018.57, stdev=136441.08 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[ 537], 40.00th=[ 537], 50.00th=[ 537], 60.00th=[193987], | 70.00th=[193987], 80.00th=[193987], 90.00th=[193987], 95.00th=[193987], | 99.00th=[193987], 99.50th=[193987], 99.90th=[193987], 99.95th=[193987], | 99.99th=[193987] bw ( KiB/s): min= 1378, max= 2039, per=35.31%, avg=1708.50, stdev=467.40, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2420KiB/s (2478kB/s)(10.0MiB/4232msec); 0 zone resets clat (msec): min=211, max=721, avg=395.18, stdev=190.58 lat (msec): min=211, max=721, avg=395.27, stdev=190.57 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 213], 10.00th=[ 213], 20.00th=[ 230], | 30.00th=[ 255], 40.00th=[ 271], 50.00th=[ 275], 60.00th=[ 393], | 70.00th=[ 418], 80.00th=[ 468], 90.00th=[ 718], 95.00th=[ 718], | 99.00th=[ 718], 99.50th=[ 718], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 1378, max= 4063, per=37.41%, avg=2534.83, stdev=1075.71, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=25.00%, 500=50.00%, 750=16.67% cpu : usr=0.00%, sys=13.35%, ctx=146, 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=144409: Fri Aug 14 22:19:17 2026 read: IOPS=1, BW=1624KiB/s (1663kB/s)(6144KiB/3784msec) clat (usec): min=498, max=269873, avg=133119.25, stdev=138611.64 lat (usec): min=500, max=269875, avg=133120.99, stdev=138611.32 clat percentiles (usec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 1745], | 30.00th=[ 1745], 40.00th=[ 18220], 50.00th=[ 18220], 60.00th=[250610], | 70.00th=[258999], 80.00th=[258999], 90.00th=[270533], 95.00th=[270533], | 99.00th=[270533], 99.50th=[270533], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 1845, max= 4000, per=51.18%, avg=2476.75, stdev=1019.30, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1624KiB/s (1663kB/s)(6144KiB/3784msec); 0 zone resets clat (msec): min=251, max=811, avg=472.44, stdev=253.37 lat (msec): min=251, max=811, avg=472.51, stdev=253.38 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 275], | 30.00th=[ 275], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 380], | 70.00th=[ 776], 80.00th=[ 776], 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= 1499, max= 3690, per=33.19%, avg=2248.60, stdev=836.60, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 20=8.33%, 250=8.33%, 500=50.00%, 1000=16.67% cpu : usr=0.00%, sys=11.92%, ctx=184, 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=144411: Fri Aug 14 22:19:17 2026 read: IOPS=1, BW=1576KiB/s (1614kB/s)(5120KiB/3248msec) clat (usec): min=456, max=209902, avg=75199.67, stdev=103429.76 lat (usec): min=457, max=209903, avg=75200.84, stdev=103429.45 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 457], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 742], 60.00th=[ 742], | 70.00th=[164627], 80.00th=[164627], 90.00th=[210764], 95.00th=[210764], | 99.00th=[210764], 99.50th=[210764], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=2, BW=2207KiB/s (2260kB/s)(7168KiB/3248msec); 0 zone resets clat (msec): min=128, max=640, avg=388.64, stdev=179.95 lat (msec): min=128, max=640, avg=388.72, stdev=179.94 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 222], | 30.00th=[ 330], 40.00th=[ 330], 50.00th=[ 384], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 542], 90.00th=[ 642], 95.00th=[ 642], | 99.00th=[ 642], 99.50th=[ 642], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 1436, max= 2039, per=28.46%, avg=1928.00, stdev=241.46, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (usec) : 500=8.33%, 750=16.67% lat (msec) : 250=33.33%, 500=25.00%, 750=16.67% cpu : usr=0.00%, sys=13.21%, ctx=136, 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=4839KiB/s (4955kB/s), 484KiB/s-3078KiB/s (496kB/s-3152kB/s), io=20.0MiB (20.0MB), run=2329-4232msec WRITE: bw=6775KiB/s (6938kB/s), 1624KiB/s-2420KiB/s (1663kB/s-2478kB/s), io=28.0MiB (29.4MB), run=2329-4232msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144404: Fri Aug 14 22:19:17 2026 read: IOPS=1, BW=1833KiB/s (1877kB/s)(7168KiB/3911msec) clat (msec): min=86, max=605, avg=263.73, stdev=233.25 lat (msec): min=86, max=605, avg=263.73, stdev=233.25 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 87], 10.00th=[ 87], 20.00th=[ 94], | 30.00th=[ 106], 40.00th=[ 106], 50.00th=[ 134], 60.00th=[ 232], | 70.00th=[ 232], 80.00th=[ 592], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1523, max= 4079, per=64.92%, avg=2931.00, stdev=1342.49, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1309KiB/s (1341kB/s)(5120KiB/3911msec); 0 zone resets clat (msec): min=188, max=772, avg=361.04, stdev=240.30 lat (msec): min=191, max=774, avg=362.03, stdev=240.23 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 188], | 30.00th=[ 211], 40.00th=[ 211], 50.00th=[ 268], 60.00th=[ 268], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] bw ( KiB/s): min= 2031, max= 4087, per=53.39%, avg=3375.00, stdev=1164.63, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (msec) : 100=16.67%, 250=41.67%, 500=16.67%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=4.25%, ctx=78, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144406: Fri Aug 14 22:19:17 2026 read: IOPS=0, BW=455KiB/s (466kB/s)(2048KiB/4500msec) clat (msec): min=100, max=267, avg=183.67, stdev=118.16 lat (msec): min=100, max=267, avg=183.67, stdev=118.16 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 101], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 101], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 268], 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= 1558, max= 2043, per=39.88%, avg=1800.50, stdev=342.95, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2276KiB/s (2330kB/s)(10.0MiB/4500msec); 0 zone resets clat (msec): min=122, max=849, avg=393.07, stdev=261.96 lat (msec): min=123, max=849, avg=393.48, stdev=262.23 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 186], | 30.00th=[ 194], 40.00th=[ 213], 50.00th=[ 305], 60.00th=[ 321], | 70.00th=[ 342], 80.00th=[ 600], 90.00th=[ 802], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 2007, max= 4063, per=42.70%, avg=2699.67, stdev=1034.58, samples=6 iops : min= 1, max= 3, avg= 1.67, stdev= 1.03, samples=6 lat (msec) : 250=41.67%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.02%, sys=4.96%, ctx=112, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144408: Fri Aug 14 22:19:17 2026 read: IOPS=1, BW=1394KiB/s (1427kB/s)(6144KiB/4409msec) clat (msec): min=79, max=682, avg=237.25, stdev=231.25 lat (msec): min=79, max=682, avg=237.25, stdev=231.25 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 114], | 30.00th=[ 114], 40.00th=[ 115], 50.00th=[ 115], 60.00th=[ 138], | 70.00th=[ 296], 80.00th=[ 296], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 2003, max= 2043, per=44.82%, avg=2023.80, stdev=19.47, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1394KiB/s (1427kB/s)(6144KiB/4409msec); 0 zone resets clat (msec): min=278, max=756, avg=488.43, stdev=214.21 lat (msec): min=278, max=756, avg=488.80, stdev=214.08 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 279], 10.00th=[ 279], 20.00th=[ 279], | 30.00th=[ 279], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 485], | 70.00th=[ 735], 80.00th=[ 735], 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= 1450, max= 4007, per=36.48%, avg=2306.00, stdev=982.96, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=4.22%, ctx=98, 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=144410: Fri Aug 14 22:19:17 2026 read: IOPS=1, BW=1129KiB/s (1156kB/s)(5120KiB/4535msec) clat (msec): min=44, max=552, avg=269.96, stdev=182.84 lat (msec): min=44, max=552, avg=269.96, stdev=182.84 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 45], 10.00th=[ 45], 20.00th=[ 45], | 30.00th=[ 213], 40.00th=[ 213], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 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= 2003, max= 4087, per=59.78%, avg=2699.00, stdev=1202.04, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1581KiB/s (1619kB/s)(7168KiB/4535msec); 0 zone resets clat (msec): min=149, max=967, avg=429.49, stdev=363.47 lat (msec): min=149, max=967, avg=429.60, stdev=363.47 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 153], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 321], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 936], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 2003, max= 4007, per=39.89%, avg=2522.00, stdev=990.15, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 50=8.33%, 250=33.33%, 500=33.33%, 750=8.33%, 1000=16.67% cpu : usr=0.04%, sys=3.99%, ctx=83, 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=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=4516KiB/s (4624kB/s), 455KiB/s-1833KiB/s (466kB/s-1877kB/s), io=20.0MiB (20.0MB), run=3911-4535msec WRITE: bw=6322KiB/s (6474kB/s), 1309KiB/s-2276KiB/s (1341kB/s-2330kB/s), io=28.0MiB (29.4MB), run=3911-4535msec 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=144421: Fri Aug 14 22:19:29 2026 read: IOPS=1, BW=4607KiB/s (4718kB/s)(12.0MiB/2667msec) clat (msec): min=567, max=1264, avg=873.97, stdev=355.92 lat (msec): min=567, max=1264, avg=873.97, stdev=355.92 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 1267], 80.00th=[ 1267], 90.00th=[ 1267], 95.00th=[ 1267], | 99.00th=[ 1267], 99.50th=[ 1267], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 8047, max= 8159, per=100.00%, avg=8103.00, stdev=79.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.08%, sys=4.28%, ctx=68, 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=144422: Fri Aug 14 22:19:29 2026 read: IOPS=0, BW=1417KiB/s (1451kB/s)(4096KiB/2890msec) clat (nsec): min=948098k, max=948098k, avg=948098370.00, stdev= 0.00 lat (nsec): min=948101k, max=948101k, avg=948100710.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 953], 5.00th=[ 953], 10.00th=[ 953], 20.00th=[ 953], | 30.00th=[ 953], 40.00th=[ 953], 50.00th=[ 953], 60.00th=[ 953], | 70.00th=[ 953], 80.00th=[ 953], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 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 write: IOPS=0, BW=2835KiB/s (2903kB/s)(8192KiB/2890msec); 0 zone resets clat (msec): min=641, max=1190, avg=916.11, stdev=388.16 lat (msec): min=642, max=1190, avg=916.49, stdev=388.12 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 642], 50.00th=[ 642], 60.00th=[ 1183], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 8126, max= 8126, per=71.67%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.74%, ctx=46, 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=144424: Fri Aug 14 22:19:29 2026 write: IOPS=1, BW=7345KiB/s (7521kB/s)(12.0MiB/1673msec); 0 zone resets clat (msec): min=295, max=1006, avg=545.74, stdev=399.49 lat (msec): min=295, max=1006, avg=546.06, stdev=399.42 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min=11636, max=11636, per=100.00%, avg=11636.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.28%, ctx=49, 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=144425: Fri Aug 14 22:19:29 2026 write: IOPS=1, BW=4504KiB/s (4613kB/s)(12.0MiB/2728msec); 0 zone resets clat (msec): min=419, max=1627, avg=897.97, stdev=641.76 lat (msec): min=420, max=1627, avg=898.30, stdev=641.73 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 7713, max= 8159, per=69.99%, avg=7936.00, stdev=315.37, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.07%, sys=4.03%, ctx=51, 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=5669KiB/s (5805kB/s), 1417KiB/s-4607KiB/s (1451kB/s-4718kB/s), io=16.0MiB (16.8MB), run=2667-2890msec WRITE: bw=11.1MiB/s (11.6MB/s), 2835KiB/s-7345KiB/s (2903kB/s-7521kB/s), io=32.0MiB (33.6MB), run=1673-2890msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144423: Fri Aug 14 22:19:29 2026 read: IOPS=1, BW=5324KiB/s (5452kB/s)(12.0MiB/2308msec) clat (msec): min=649, max=747, avg=685.90, stdev=53.55 lat (msec): min=649, max=747, avg=685.91, stdev=53.55 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 659], 50.00th=[ 659], 60.00th=[ 659], | 70.00th=[ 751], 80.00th=[ 751], 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= 8015, max= 8192, per=100.00%, avg=8103.50, stdev=125.16, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=11.66%, ctx=234, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144426: Fri Aug 14 22:19:29 2026 read: IOPS=0, BW=1791KiB/s (1834kB/s)(4096KiB/2287msec) clat (nsec): min=771208k, max=771208k, avg=771207597.00, stdev= 0.00 lat (nsec): min=771211k, max=771211k, avg=771210911.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 768], 5.00th=[ 768], 10.00th=[ 768], 20.00th=[ 768], | 30.00th=[ 768], 40.00th=[ 768], 50.00th=[ 768], 60.00th=[ 768], | 70.00th=[ 768], 80.00th=[ 768], 90.00th=[ 768], 95.00th=[ 768], | 99.00th=[ 768], 99.50th=[ 768], 99.90th=[ 768], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3582KiB/s (3668kB/s)(8192KiB/2287msec); 0 zone resets clat (msec): min=622, max=655, avg=639.02, stdev=23.44 lat (msec): min=622, max=655, avg=639.30, stdev=23.58 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 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= 8192, max= 8192, per=73.88%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=8.75%, ctx=165, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144427: Fri Aug 14 22:19:29 2026 write: IOPS=1, BW=4158KiB/s (4258kB/s)(12.0MiB/2955msec); 0 zone resets clat (msec): min=269, max=2188, avg=951.10, stdev=1073.77 lat (msec): min=270, max=2189, avg=952.04, stdev=1073.26 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 2198], 80.00th=[ 2198], 90.00th=[ 2198], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min=16253, max=16253, per=100.00%, avg=16253.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.07%, sys=3.79%, ctx=55, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144428: Fri Aug 14 22:19:29 2026 write: IOPS=1, BW=4213KiB/s (4314kB/s)(12.0MiB/2917msec); 0 zone resets clat (msec): min=783, max=1006, avg=898.30, stdev=111.64 lat (msec): min=783, max=1006, avg=899.02, stdev=111.68 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 902], 50.00th=[ 902], 60.00th=[ 902], | 70.00th=[ 1003], 80.00th=[ 1003], 90.00th=[ 1003], 95.00th=[ 1003], | 99.00th=[ 1003], 99.50th=[ 1003], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 8015, max= 8159, per=72.93%, avg=8087.00, stdev=101.82, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.00%, sys=5.11%, ctx=70, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7099KiB/s (7269kB/s), 1791KiB/s-5324KiB/s (1834kB/s-5452kB/s), io=16.0MiB (16.8MB), run=2287-2308msec WRITE: bw=10.8MiB/s (11.4MB/s), 3582KiB/s-4213KiB/s (3668kB/s-4314kB/s), io=32.0MiB (33.6MB), run=2287-2955msec