== sanity test 398b: DIO and buffer IO race ============== 00:50:42 (1787115042) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 7.44167 s, 6.8 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=179978: Wed Aug 19 00:53:23 2026 read: IOPS=10, BW=43.2KiB/s (44.2kB/s)(5992KiB/138850msec) clat (usec): min=43, max=1139.8k, avg=50710.28, stdev=44040.39 lat (usec): min=44, max=1139.8k, avg=50711.70, stdev=44040.34 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11600], 10.00th=[ 18744], | 20.00th=[ 25822], 30.00th=[ 31327], 40.00th=[ 37487], | 50.00th=[ 42730], 60.00th=[ 50594], 70.00th=[ 58983], | 80.00th=[ 70779], 90.00th=[ 91751], 95.00th=[ 107480], | 99.00th=[ 175113], 99.50th=[ 225444], 99.90th=[ 383779], | 99.95th=[1132463], 99.99th=[1132463] bw ( KiB/s): min= 7, max= 103, per=24.87%, avg=42.77, stdev=17.85, samples=273 iops : min= 1, max= 25, avg=10.01, stdev= 4.48, samples=273 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(6296KiB/138850msec); 0 zone resets clat (usec): min=1238, max=323232, avg=39636.26, stdev=40715.18 lat (usec): min=1240, max=323234, avg=39641.89, stdev=40712.94 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1582], 10.00th=[ 2606], 20.00th=[ 5211], | 30.00th=[ 9110], 40.00th=[ 17433], 50.00th=[ 28967], 60.00th=[ 38536], | 70.00th=[ 51643], 80.00th=[ 68682], 90.00th=[ 94897], 95.00th=[115868], | 99.00th=[175113], 99.50th=[206570], 99.90th=[320865], 99.95th=[325059], | 99.99th=[325059] bw ( KiB/s): min= 7, max= 127, per=25.02%, avg=45.29, stdev=20.44, samples=271 iops : min= 1, max= 31, avg=10.64, stdev= 5.13, samples=271 lat (usec) : 50=0.07%, 100=1.76%, 250=0.16% lat (msec) : 2=3.71%, 4=4.20%, 10=8.56%, 20=8.63%, 50=37.14% lat (msec) : 100=27.93%, 250=7.65%, 500=0.16%, 2000=0.03% cpu : usr=0.06%, sys=4.67%, ctx=6787, 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=179980: Wed Aug 19 00:53:23 2026 read: IOPS=10, BW=43.0KiB/s (44.0kB/s)(5940KiB/138114msec) clat (usec): min=42, max=1042.8k, avg=52018.02, stdev=41282.75 lat (usec): min=43, max=1042.8k, avg=52024.88, stdev=41285.89 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 14877], 10.00th=[ 20055], | 20.00th=[ 26608], 30.00th=[ 32113], 40.00th=[ 38011], | 50.00th=[ 43779], 60.00th=[ 51643], 70.00th=[ 60031], | 80.00th=[ 72877], 90.00th=[ 92799], 95.00th=[ 112722], | 99.00th=[ 162530], 99.50th=[ 191890], 99.90th=[ 270533], | 99.95th=[1044382], 99.99th=[1044382] bw ( KiB/s): min= 7, max= 87, per=24.89%, avg=42.80, stdev=15.68, samples=269 iops : min= 1, max= 21, avg=10.02, stdev= 3.95, samples=269 write: IOPS=11, BW=45.0KiB/s (47.1kB/s)(6348KiB/138114msec); 0 zone resets clat (usec): min=1187, max=354236, avg=37933.87, stdev=38578.67 lat (usec): min=1188, max=354238, avg=37959.37, stdev=38567.38 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1516], 10.00th=[ 2212], 20.00th=[ 5276], | 30.00th=[ 9765], 40.00th=[ 18220], 50.00th=[ 27657], 60.00th=[ 35914], | 70.00th=[ 46924], 80.00th=[ 65274], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[166724], 99.50th=[183501], 99.90th=[238027], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 7, max= 133, per=25.27%, avg=45.74, stdev=21.67, samples=269 iops : min= 1, max= 33, avg=10.75, stdev= 5.46, samples=269 lat (usec) : 50=0.16%, 100=1.20%, 250=0.07%, 500=0.03%, 750=0.03% lat (msec) : 2=4.62%, 4=3.61%, 10=7.91%, 20=8.50%, 50=38.61% lat (msec) : 100=27.51%, 250=7.65%, 500=0.07%, 2000=0.03% cpu : usr=0.07%, sys=4.89%, ctx=6892, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179981: Wed Aug 19 00:53:23 2026 read: IOPS=10, BW=43.8KiB/s (44.9kB/s)(6028KiB/137482msec) clat (usec): min=40, max=1065.0k, avg=51010.62, stdev=41366.07 lat (usec): min=41, max=1065.0k, avg=51014.13, stdev=41367.12 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12649], 10.00th=[ 19006], | 20.00th=[ 26084], 30.00th=[ 31851], 40.00th=[ 37487], | 50.00th=[ 44303], 60.00th=[ 52167], 70.00th=[ 60031], | 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[ 107480], | 99.00th=[ 154141], 99.50th=[ 189793], 99.90th=[ 325059], | 99.95th=[1069548], 99.99th=[1069548] bw ( KiB/s): min= 7, max= 103, per=25.33%, avg=43.57, stdev=17.33, samples=269 iops : min= 1, max= 25, avg=10.22, stdev= 4.36, samples=269 write: IOPS=11, BW=45.5KiB/s (46.6kB/s)(6260KiB/137482msec); 0 zone resets clat (usec): min=1070, max=279613, avg=38433.47, stdev=37931.62 lat (usec): min=1071, max=279615, avg=38439.87, stdev=37930.04 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 1614], 10.00th=[ 2802], 20.00th=[ 5342], | 30.00th=[ 9634], 40.00th=[ 19530], 50.00th=[ 28705], 60.00th=[ 38536], | 70.00th=[ 49021], 80.00th=[ 65274], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[156238], 99.50th=[177210], 99.90th=[254804], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 127, per=24.92%, avg=45.10, stdev=21.04, samples=270 iops : min= 1, max= 31, avg=10.60, stdev= 5.28, samples=270 lat (usec) : 50=0.20%, 100=1.66%, 250=0.07%, 500=0.03% lat (msec) : 2=3.55%, 4=4.46%, 10=7.71%, 20=8.07%, 50=38.67% lat (msec) : 100=28.39%, 250=7.00%, 500=0.16%, 2000=0.03% cpu : usr=0.05%, sys=4.72%, ctx=6762, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179982: Wed Aug 19 00:53:23 2026 read: IOPS=11, BW=44.6KiB/s (45.7kB/s)(6052KiB/135745msec) clat (usec): min=43, max=318133, avg=49809.96, stdev=33720.13 lat (usec): min=43, max=318134, avg=49812.31, stdev=33720.64 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12649], 10.00th=[ 18482], 20.00th=[ 24773], | 30.00th=[ 30016], 40.00th=[ 36439], 50.00th=[ 42730], 60.00th=[ 50594], | 70.00th=[ 59507], 80.00th=[ 68682], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[168821], 99.50th=[191890], 99.90th=[295699], 99.95th=[316670], | 99.99th=[316670] bw ( KiB/s): min= 7, max= 95, per=25.79%, avg=44.36, stdev=17.39, samples=266 iops : min= 1, max= 23, avg=10.41, stdev= 4.38, samples=266 write: IOPS=11, BW=45.9KiB/s (47.0kB/s)(6236KiB/135745msec); 0 zone resets clat (usec): min=1223, max=981178, avg=38406.57, stdev=45780.70 lat (usec): min=1224, max=981179, avg=38414.00, stdev=45781.19 clat percentiles (usec): | 1.00th=[ 1369], 5.00th=[ 1631], 10.00th=[ 2638], 20.00th=[ 4948], | 30.00th=[ 8455], 40.00th=[ 16909], 50.00th=[ 26608], 60.00th=[ 37487], | 70.00th=[ 49546], 80.00th=[ 63701], 90.00th=[ 90702], 95.00th=[113771], | 99.00th=[177210], 99.50th=[191890], 99.90th=[308282], 99.95th=[977273], | 99.99th=[977273] bw ( KiB/s): min= 7, max= 103, per=25.15%, avg=45.52, stdev=20.50, samples=267 iops : min= 1, max= 25, avg=10.70, stdev= 5.16, samples=267 lat (usec) : 50=0.23%, 100=1.69%, 250=0.13%, 1000=0.03% lat (msec) : 2=3.74%, 4=4.43%, 10=8.56%, 20=9.24%, 50=36.75% lat (msec) : 100=27.86%, 250=7.19%, 500=0.10%, 1000=0.03% cpu : usr=0.07%, sys=4.84%, ctx=6784, 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=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=173KiB/s (177kB/s), 43.0KiB/s-44.6KiB/s (44.0kB/s-45.7kB/s), io=23.4MiB (24.6MB), run=135745-138850msec WRITE: bw=181KiB/s (185kB/s), 45.3KiB/s-45.0KiB/s (46.4kB/s-47.1kB/s), io=24.6MiB (25.7MB), run=135745-138850msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179979: Wed Aug 19 00:54:18 2026 read: IOPS=7, BW=30.0KiB/s (31.7kB/s)(5992KiB/193427msec) clat (msec): min=6, max=1130, avg=52.18, stdev=51.33 lat (msec): min=6, max=1130, avg=52.18, stdev=51.33 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 38], 60.00th=[ 45], | 70.00th=[ 57], 80.00th=[ 74], 90.00th=[ 111], 95.00th=[ 144], | 99.00th=[ 222], 99.50th=[ 247], 99.90th=[ 271], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 7, max= 132, per=25.58%, avg=31.72, stdev=20.73, samples=366 iops : min= 1, max= 33, avg= 7.25, stdev= 5.23, samples=366 write: IOPS=8, BW=32.5KiB/s (33.3kB/s)(6296KiB/193427msec); 0 zone resets clat (msec): min=10, max=391, avg=72.97, stdev=47.85 lat (msec): min=10, max=391, avg=72.97, stdev=47.85 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 60], 60.00th=[ 71], | 70.00th=[ 86], 80.00th=[ 104], 90.00th=[ 138], 95.00th=[ 165], | 99.00th=[ 241], 99.50th=[ 292], 99.90th=[ 338], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 7, max= 95, per=25.00%, avg=32.25, stdev=18.95, samples=378 iops : min= 1, max= 23, avg= 7.38, stdev= 4.78, samples=378 lat (msec) : 10=0.88%, 20=9.67%, 50=41.63%, 100=30.79%, 250=16.34% lat (msec) : 500=0.65%, 2000=0.03% cpu : usr=0.04%, sys=1.89%, ctx=4967, 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=179983: Wed Aug 19 00:54:18 2026 read: IOPS=7, BW=30.7KiB/s (31.5kB/s)(5940KiB/193381msec) clat (msec): min=6, max=1053, avg=50.53, stdev=48.71 lat (msec): min=6, max=1053, avg=50.53, stdev=48.71 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 53], 80.00th=[ 71], 90.00th=[ 108], 95.00th=[ 142], | 99.00th=[ 215], 99.50th=[ 230], 99.90th=[ 266], 99.95th=[ 1053], | 99.99th=[ 1053] bw ( KiB/s): min= 7, max= 135, per=25.00%, avg=31.00, stdev=20.71, samples=371 iops : min= 1, max= 33, avg= 7.07, stdev= 5.21, samples=371 write: IOPS=8, BW=32.8KiB/s (33.6kB/s)(6348KiB/193381msec); 0 zone resets clat (msec): min=11, max=363, avg=74.30, stdev=46.06 lat (msec): min=11, max=363, avg=74.31, stdev=46.06 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 52], 50.00th=[ 63], 60.00th=[ 73], | 70.00th=[ 89], 80.00th=[ 110], 90.00th=[ 138], 95.00th=[ 165], | 99.00th=[ 228], 99.50th=[ 245], 99.90th=[ 305], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 111, per=25.16%, avg=32.46, stdev=18.41, samples=379 iops : min= 1, max= 27, avg= 7.43, stdev= 4.64, samples=379 lat (msec) : 10=1.04%, 20=8.98%, 50=42.51%, 100=29.49%, 250=17.64% lat (msec) : 500=0.29%, 2000=0.03% cpu : usr=0.05%, sys=1.89%, ctx=4899, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179984: Wed Aug 19 00:54:18 2026 read: IOPS=7, BW=31.6KiB/s (32.4kB/s)(6028KiB/190749msec) clat (msec): min=5, max=282, avg=50.42, stdev=43.19 lat (msec): min=5, max=282, avg=50.42, stdev=43.19 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 44], | 70.00th=[ 53], 80.00th=[ 71], 90.00th=[ 111], 95.00th=[ 144], | 99.00th=[ 211], 99.50th=[ 236], 99.90th=[ 271], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 7, max= 126, per=25.68%, avg=31.84, stdev=19.51, samples=367 iops : min= 1, max= 31, avg= 7.28, stdev= 4.93, samples=367 write: IOPS=8, BW=32.8KiB/s (33.6kB/s)(6260KiB/190749msec); 0 zone resets clat (msec): min=11, max=1039, avg=73.02, stdev=51.96 lat (msec): min=11, max=1039, avg=73.03, stdev=51.96 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 52], 50.00th=[ 61], 60.00th=[ 72], | 70.00th=[ 86], 80.00th=[ 103], 90.00th=[ 133], 95.00th=[ 161], | 99.00th=[ 239], 99.50th=[ 288], 99.90th=[ 409], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 111, per=25.36%, avg=32.71, stdev=18.76, samples=371 iops : min= 1, max= 27, avg= 7.50, stdev= 4.73, samples=371 lat (msec) : 10=1.07%, 20=9.31%, 50=42.45%, 100=30.40%, 250=16.21% lat (msec) : 500=0.52%, 2000=0.03% cpu : usr=0.06%, sys=1.91%, ctx=4973, 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=179985: Wed Aug 19 00:54:18 2026 read: IOPS=7, BW=31.3KiB/s (32.0kB/s)(6052KiB/193497msec) clat (msec): min=6, max=324, avg=51.54, stdev=43.07 lat (msec): min=6, max=324, avg=51.54, stdev=43.08 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 57], 80.00th=[ 75], 90.00th=[ 113], 95.00th=[ 146], | 99.00th=[ 201], 99.50th=[ 236], 99.90th=[ 284], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 7, max= 150, per=25.94%, avg=32.16, stdev=20.35, samples=365 iops : min= 1, max= 37, avg= 7.36, stdev= 5.12, samples=365 write: IOPS=8, BW=32.2KiB/s (33.0kB/s)(6236KiB/193497msec); 0 zone resets clat (msec): min=10, max=1031, avg=73.82, stdev=53.94 lat (msec): min=10, max=1031, avg=73.82, stdev=53.94 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 52], 50.00th=[ 61], 60.00th=[ 71], | 70.00th=[ 84], 80.00th=[ 104], 90.00th=[ 136], 95.00th=[ 167], | 99.00th=[ 234], 99.50th=[ 309], 99.90th=[ 405], 99.95th=[ 1028], | 99.99th=[ 1028] bw ( KiB/s): min= 7, max= 111, per=25.06%, avg=32.33, stdev=18.68, samples=374 iops : min= 1, max= 27, avg= 7.40, stdev= 4.70, samples=374 lat (msec) : 10=1.14%, 20=9.67%, 50=40.66%, 100=31.77%, 250=16.15% lat (msec) : 500=0.59%, 2000=0.03% cpu : usr=0.05%, sys=1.96%, ctx=4932, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=124KiB/s (127kB/s), 30.7KiB/s-31.6KiB/s (31.5kB/s-32.4kB/s), io=23.4MiB (24.6MB), run=190749-193497msec WRITE: bw=130KiB/s (133kB/s), 32.2KiB/s-32.8KiB/s (33.0kB/s-33.6kB/s), io=24.6MiB (25.7MB), run=190749-193497msec 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=180032: Wed Aug 19 00:55:11 2026 read: IOPS=9, BW=148KiB/s (151kB/s)(5920KiB/40112msec) clat (usec): min=39, max=332002, avg=57012.00, stdev=38977.55 lat (usec): min=39, max=332002, avg=57043.08, stdev=38970.43 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 68], 10.00th=[ 10552], 20.00th=[ 28967], | 30.00th=[ 38536], 40.00th=[ 44827], 50.00th=[ 51643], 60.00th=[ 58983], | 70.00th=[ 68682], 80.00th=[ 80217], 90.00th=[ 96994], 95.00th=[125305], | 99.00th=[200279], 99.50th=[214959], 99.90th=[333448], 99.95th=[333448], | 99.99th=[333448] bw ( KiB/s): min= 30, max= 319, per=25.36%, avg=151.39, stdev=63.17, samples=77 iops : min= 1, max= 19, avg= 8.69, stdev= 3.99, samples=77 write: IOPS=9, BW=159KiB/s (163kB/s)(6368KiB/40112msec); 0 zone resets clat (usec): min=1565, max=284892, avg=46578.20, stdev=47611.05 lat (usec): min=1567, max=284894, avg=46593.11, stdev=47601.96 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2147], 10.00th=[ 3851], 20.00th=[ 7308], | 30.00th=[ 12256], 40.00th=[ 20579], 50.00th=[ 32375], 60.00th=[ 42730], | 70.00th=[ 58983], 80.00th=[ 77071], 90.00th=[112722], 95.00th=[141558], | 99.00th=[223347], 99.50th=[270533], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 31, max= 350, per=25.87%, avg=162.49, stdev=71.04, samples=77 iops : min= 1, max= 21, avg= 9.40, stdev= 4.49, samples=77 lat (usec) : 50=0.65%, 100=3.12%, 250=0.52% lat (msec) : 2=2.47%, 4=3.52%, 10=7.81%, 20=8.33%, 50=29.95% lat (msec) : 100=32.03%, 250=11.20%, 500=0.39% cpu : usr=0.04%, sys=5.03%, ctx=1770, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180035: Wed Aug 19 00:55:11 2026 read: IOPS=9, BW=152KiB/s (156kB/s)(5744KiB/37782msec) clat (usec): min=38, max=261574, avg=56643.02, stdev=41191.82 lat (usec): min=39, max=261575, avg=56644.27, stdev=41191.87 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 65], 10.00th=[ 83], 20.00th=[ 23462], | 30.00th=[ 34866], 40.00th=[ 43254], 50.00th=[ 52167], 60.00th=[ 61080], | 70.00th=[ 70779], 80.00th=[ 84411], 90.00th=[104334], 95.00th=[126354], | 99.00th=[202376], 99.50th=[238027], 99.90th=[261096], 99.95th=[261096], | 99.99th=[261096] bw ( KiB/s): min= 28, max= 415, per=25.35%, avg=151.31, stdev=76.61, samples=74 iops : min= 1, max= 25, avg= 8.69, stdev= 4.80, samples=74 write: IOPS=10, BW=173KiB/s (177kB/s)(6544KiB/37782msec); 0 zone resets clat (usec): min=1611, max=272823, avg=42283.26, stdev=40617.65 lat (usec): min=1612, max=272826, avg=42296.49, stdev=40631.71 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2180], 10.00th=[ 3359], 20.00th=[ 6587], | 30.00th=[ 11863], 40.00th=[ 20055], 50.00th=[ 31589], 60.00th=[ 43254], | 70.00th=[ 55313], 80.00th=[ 71828], 90.00th=[100140], 95.00th=[120062], | 99.00th=[162530], 99.50th=[187696], 99.90th=[274727], 99.95th=[274727], | 99.99th=[274727] bw ( KiB/s): min= 31, max= 350, per=27.98%, avg=175.71, stdev=73.25, samples=73 iops : min= 1, max= 21, avg=10.23, stdev= 4.65, samples=73 lat (usec) : 50=0.65%, 100=4.30%, 250=0.65%, 500=0.13% lat (msec) : 2=1.56%, 4=4.95%, 10=7.94%, 20=8.46%, 50=28.78% lat (msec) : 100=32.16%, 250=10.16%, 500=0.26% cpu : usr=0.04%, sys=5.18%, ctx=1615, 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=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=180036: Wed Aug 19 00:55:11 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(6256KiB/36819msec) clat (usec): min=39, max=218687, avg=52116.75, stdev=36950.63 lat (usec): min=39, max=218688, avg=52133.05, stdev=36966.46 clat percentiles (usec): | 1.00th=[ 44], 5.00th=[ 65], 10.00th=[ 87], 20.00th=[ 24773], | 30.00th=[ 32375], 40.00th=[ 40633], 50.00th=[ 49021], 60.00th=[ 55313], | 70.00th=[ 66847], 80.00th=[ 78119], 90.00th=[ 98042], 95.00th=[119014], | 99.00th=[170918], 99.50th=[191890], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 62, max= 379, per=28.76%, avg=171.72, stdev=71.43, samples=71 iops : min= 3, max= 23, avg= 9.97, stdev= 4.50, samples=71 write: IOPS=10, BW=164KiB/s (168kB/s)(6032KiB/36819msec); 0 zone resets clat (usec): min=1224, max=298872, avg=42172.97, stdev=40946.53 lat (usec): min=1225, max=298874, avg=42175.31, stdev=40946.40 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 3097], 10.00th=[ 4359], 20.00th=[ 7767], | 30.00th=[ 12911], 40.00th=[ 22152], 50.00th=[ 29754], 60.00th=[ 40633], | 70.00th=[ 53216], 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[119014], | 99.00th=[187696], 99.50th=[204473], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 28, max= 320, per=25.99%, avg=163.24, stdev=71.07, samples=71 iops : min= 1, max= 20, avg= 9.44, stdev= 4.51, samples=71 lat (usec) : 50=0.65%, 100=4.95%, 250=0.65%, 500=0.52%, 1000=0.13% lat (msec) : 2=0.65%, 4=3.91%, 10=7.29%, 20=8.98%, 50=31.90% lat (msec) : 100=31.77%, 250=8.46%, 500=0.13% cpu : usr=0.06%, sys=5.14%, ctx=1671, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180037: Wed Aug 19 00:55:11 2026 read: IOPS=10, BW=167KiB/s (171kB/s)(6032KiB/36093msec) clat (usec): min=39, max=386608, avg=52979.88, stdev=40977.05 lat (usec): min=39, max=386609, avg=52981.80, stdev=40976.54 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 75], 20.00th=[ 22938], | 30.00th=[ 31589], 40.00th=[ 39584], 50.00th=[ 50594], 60.00th=[ 58459], | 70.00th=[ 69731], 80.00th=[ 79168], 90.00th=[ 96994], 95.00th=[114820], | 99.00th=[175113], 99.50th=[223347], 99.90th=[387974], 99.95th=[387974], | 99.99th=[387974] bw ( KiB/s): min= 31, max= 382, per=28.56%, avg=170.49, stdev=73.98, samples=69 iops : min= 1, max= 23, avg= 9.90, stdev= 4.74, samples=69 write: IOPS=10, BW=173KiB/s (177kB/s)(6256KiB/36093msec); 0 zone resets clat (usec): min=1659, max=380808, avg=40183.24, stdev=46023.75 lat (usec): min=1660, max=380812, avg=40224.01, stdev=45998.58 clat percentiles (usec): | 1.00th=[ 1811], 5.00th=[ 2147], 10.00th=[ 2933], 20.00th=[ 5014], | 30.00th=[ 8717], 40.00th=[ 13304], 50.00th=[ 22414], 60.00th=[ 37487], | 70.00th=[ 50594], 80.00th=[ 69731], 90.00th=[102237], 95.00th=[123208], | 99.00th=[183501], 99.50th=[304088], 99.90th=[379585], 99.95th=[379585], | 99.99th=[379585] bw ( KiB/s): min= 31, max= 447, per=28.07%, avg=176.26, stdev=78.82, samples=70 iops : min= 1, max= 27, avg=10.26, stdev= 5.00, samples=70 lat (usec) : 50=0.52%, 100=5.34%, 250=0.65%, 500=0.52%, 750=0.39% lat (usec) : 1000=0.13% lat (msec) : 2=1.82%, 4=5.60%, 10=9.64%, 20=7.81%, 50=27.08% lat (msec) : 100=30.47%, 250=9.64%, 500=0.39% cpu : usr=0.04%, sys=5.55%, ctx=1567, 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=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=597KiB/s (611kB/s), 148KiB/s-170KiB/s (151kB/s-174kB/s), io=23.4MiB (24.5MB), run=36093-40112msec WRITE: bw=628KiB/s (643kB/s), 159KiB/s-173KiB/s (163kB/s-177kB/s), io=24.6MiB (25.8MB), run=36093-40112msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180030: Wed Aug 19 00:55:24 2026 read: IOPS=6, BW=111KiB/s (114kB/s)(5920KiB/53292msec) clat (msec): min=7, max=276, avg=54.75, stdev=47.60 lat (msec): min=7, max=276, avg=54.76, stdev=47.62 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 46], | 70.00th=[ 58], 80.00th=[ 75], 90.00th=[ 117], 95.00th=[ 159], | 99.00th=[ 241], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 30, max= 351, per=25.90%, avg=116.04, stdev=72.10, samples=98 iops : min= 1, max= 21, avg= 6.43, stdev= 4.57, samples=98 write: IOPS=7, BW=119KiB/s (122kB/s)(6368KiB/53292msec); 0 zone resets clat (msec): min=14, max=314, avg=82.77, stdev=57.10 lat (msec): min=14, max=314, avg=82.78, stdev=57.10 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 27], 10.00th=[ 31], 20.00th=[ 39], | 30.00th=[ 46], 40.00th=[ 53], 50.00th=[ 63], 60.00th=[ 75], | 70.00th=[ 97], 80.00th=[ 129], 90.00th=[ 167], 95.00th=[ 201], | 99.00th=[ 284], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 30, max= 448, per=25.18%, avg=118.61, stdev=73.32, samples=104 iops : min= 1, max= 28, avg= 6.59, stdev= 4.66, samples=104 lat (msec) : 10=0.91%, 20=7.16%, 50=41.93%, 100=29.17%, 250=19.79% lat (msec) : 500=1.04% cpu : usr=0.03%, sys=1.82%, ctx=1251, 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= 0: pid=180031: Wed Aug 19 00:55:24 2026 read: IOPS=6, BW=109KiB/s (111kB/s)(5744KiB/52898msec) clat (msec): min=8, max=374, avg=55.01, stdev=48.17 lat (msec): min=8, max=374, avg=55.01, stdev=48.17 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 58], 80.00th=[ 84], 90.00th=[ 120], 95.00th=[ 150], | 99.00th=[ 226], 99.50th=[ 266], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 22, max= 415, per=25.23%, avg=113.02, stdev=74.47, samples=100 iops : min= 1, max= 25, avg= 6.23, stdev= 4.71, samples=100 write: IOPS=7, BW=124KiB/s (127kB/s)(6544KiB/52898msec); 0 zone resets clat (msec): min=16, max=532, avg=80.24, stdev=57.76 lat (msec): min=16, max=532, avg=80.24, stdev=57.76 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 39], | 30.00th=[ 46], 40.00th=[ 55], 50.00th=[ 64], 60.00th=[ 75], | 70.00th=[ 93], 80.00th=[ 113], 90.00th=[ 146], 95.00th=[ 190], | 99.00th=[ 296], 99.50th=[ 359], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 31, max= 384, per=26.73%, avg=125.88, stdev=73.00, samples=102 iops : min= 1, max= 24, avg= 7.05, stdev= 4.63, samples=102 lat (msec) : 10=0.26%, 20=7.42%, 50=40.76%, 100=30.99%, 250=19.53% lat (msec) : 500=0.91%, 750=0.13% cpu : usr=0.04%, sys=1.76%, ctx=1264, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180033: Wed Aug 19 00:55:24 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(6256KiB/53399msec) clat (msec): min=9, max=339, avg=58.88, stdev=51.01 lat (msec): min=9, max=339, avg=58.88, stdev=51.01 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 16], 10.00th=[ 19], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 49], | 70.00th=[ 63], 80.00th=[ 84], 90.00th=[ 123], 95.00th=[ 159], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 30, max= 380, per=26.97%, avg=120.81, stdev=81.18, samples=102 iops : min= 1, max= 23, avg= 6.73, stdev= 5.16, samples=102 write: IOPS=7, BW=113KiB/s (116kB/s)(6032KiB/53399msec); 0 zone resets clat (msec): min=14, max=527, avg=79.48, stdev=58.17 lat (msec): min=14, max=527, avg=79.49, stdev=58.17 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 46], 40.00th=[ 53], 50.00th=[ 62], 60.00th=[ 73], | 70.00th=[ 85], 80.00th=[ 118], 90.00th=[ 153], 95.00th=[ 192], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 30, max= 384, per=24.14%, avg=113.70, stdev=71.88, samples=104 iops : min= 1, max= 24, avg= 6.28, stdev= 4.55, samples=104 lat (msec) : 10=0.26%, 20=7.03%, 50=42.19%, 100=30.73%, 250=18.23% lat (msec) : 500=1.43%, 750=0.13% cpu : usr=0.04%, sys=1.90%, ctx=1332, 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=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=180034: Wed Aug 19 00:55:24 2026 read: IOPS=7, BW=114KiB/s (116kB/s)(6032KiB/53096msec) clat (msec): min=9, max=298, avg=59.70, stdev=53.43 lat (msec): min=9, max=298, avg=59.70, stdev=53.43 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 15], 10.00th=[ 17], 20.00th=[ 23], | 30.00th=[ 28], 40.00th=[ 34], 50.00th=[ 40], 60.00th=[ 50], | 70.00th=[ 63], 80.00th=[ 87], 90.00th=[ 140], 95.00th=[ 163], | 99.00th=[ 279], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 30, max= 350, per=25.85%, avg=115.82, stdev=74.37, samples=101 iops : min= 1, max= 21, avg= 6.40, stdev= 4.72, samples=101 write: IOPS=7, BW=118KiB/s (121kB/s)(6256KiB/53096msec); 0 zone resets clat (msec): min=16, max=358, avg=77.18, stdev=54.83 lat (msec): min=16, max=358, avg=77.19, stdev=54.83 clat percentiles (msec): | 1.00th=[ 24], 5.00th=[ 26], 10.00th=[ 31], 20.00th=[ 37], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 61], 60.00th=[ 70], | 70.00th=[ 84], 80.00th=[ 103], 90.00th=[ 155], 95.00th=[ 182], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 22, max= 383, per=26.15%, avg=123.16, stdev=77.92, samples=99 iops : min= 1, max= 23, avg= 6.88, stdev= 4.94, samples=99 lat (msec) : 10=0.13%, 20=7.42%, 50=41.28%, 100=32.16%, 250=17.45% lat (msec) : 500=1.56% cpu : usr=0.03%, sys=1.68%, ctx=1169, 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=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=449KiB/s (459kB/s), 109KiB/s-117KiB/s (111kB/s-120kB/s), io=23.4MiB (24.5MB), run=52898-53399msec WRITE: bw=472KiB/s (483kB/s), 113KiB/s-124KiB/s (116kB/s-127kB/s), io=24.6MiB (25.8MB), run=52898-53399msec 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=180052: Wed Aug 19 00:55:43 2026 read: IOPS=1, BW=1600KiB/s (1639kB/s)(7168KiB/4479msec) clat (msec): min=2, max=382, avg=230.21, stdev=125.68 lat (msec): min=2, max=382, avg=230.22, stdev=125.68 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 161], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 232], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 347], 90.00th=[ 384], 95.00th=[ 384], | 99.00th=[ 384], 99.50th=[ 384], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 2003, max= 4000, per=87.18%, avg=3001.67, stdev=998.50, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 write: IOPS=1, BW=1143KiB/s (1171kB/s)(5120KiB/4479msec); 0 zone resets clat (msec): min=173, max=899, avg=539.80, stdev=292.63 lat (msec): min=173, max=900, avg=540.07, stdev=292.66 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 174], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 902], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1838, max= 2043, per=41.18%, avg=1984.75, stdev=98.18, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 4=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.02%, sys=9.98%, 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=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=180053: Wed Aug 19 00:55:43 2026 read: IOPS=0, BW=344KiB/s (353kB/s)(2048KiB/5948msec) clat (usec): min=1217, max=352655, avg=176936.71, stdev=248504.26 lat (usec): min=1218, max=352658, avg=176938.52, stdev=248505.62 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1221], 10.00th=[ 1221], 20.00th=[ 1221], | 30.00th=[ 1221], 40.00th=[ 1221], 50.00th=[ 1221], 60.00th=[354419], | 70.00th=[354419], 80.00th=[354419], 90.00th=[354419], 95.00th=[354419], | 99.00th=[354419], 99.50th=[354419], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 2003, max= 2035, per=58.64%, avg=2019.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1722KiB/s (1763kB/s)(10.0MiB/5948msec); 0 zone resets clat (msec): min=131, max=859, avg=498.59, stdev=214.41 lat (msec): min=131, max=859, avg=498.89, stdev=214.39 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 275], | 30.00th=[ 309], 40.00th=[ 489], 50.00th=[ 502], 60.00th=[ 514], | 70.00th=[ 600], 80.00th=[ 625], 90.00th=[ 684], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1838, max= 4063, per=46.61%, avg=2246.75, stdev=736.70, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 2=8.33%, 250=8.33%, 500=41.67%, 750=33.33%, 1000=8.33% cpu : usr=0.05%, sys=10.01%, ctx=182, 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=180054: Wed Aug 19 00:55:43 2026 read: IOPS=1, BW=1163KiB/s (1190kB/s)(6144KiB/5285msec) clat (msec): min=178, max=561, avg=375.89, stdev=186.12 lat (msec): min=178, max=561, avg=375.89, stdev=186.12 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 523], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 1838, max= 2035, per=57.44%, avg=1977.60, stdev=80.90, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1163KiB/s (1190kB/s)(6144KiB/5285msec); 0 zone resets clat (msec): min=275, max=730, avg=466.06, stdev=190.44 lat (msec): min=275, max=730, avg=466.72, stdev=190.32 clat percentiles (msec): | 1.00th=[ 275], 5.00th=[ 275], 10.00th=[ 275], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 384], 50.00th=[ 384], 60.00th=[ 435], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1414, max= 2043, per=39.49%, avg=1903.60, stdev=274.11, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=33.33%, 750=41.67% cpu : usr=0.02%, sys=9.61%, ctx=232, 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=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=180056: Wed Aug 19 00:55:43 2026 read: IOPS=1, BW=1190KiB/s (1218kB/s)(5120KiB/4304msec) clat (msec): min=2, max=386, avg=164.11, stdev=154.16 lat (msec): min=2, max=386, avg=164.11, stdev=154.16 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 3], | 30.00th=[ 42], 40.00th=[ 42], 50.00th=[ 157], 60.00th=[ 157], | 70.00th=[ 234], 80.00th=[ 234], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 4063, max= 4087, per=100.00%, avg=4075.00, stdev=16.97, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1665KiB/s (1705kB/s)(7168KiB/4304msec); 0 zone resets clat (msec): min=294, max=979, avg=492.70, stdev=252.91 lat (msec): min=295, max=979, avg=492.86, stdev=252.89 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 313], | 30.00th=[ 321], 40.00th=[ 321], 50.00th=[ 359], 60.00th=[ 535], | 70.00th=[ 535], 80.00th=[ 651], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1492, max= 3676, per=45.84%, avg=2209.50, stdev=749.19, samples=6 iops : min= 1, max= 3, avg= 1.33, stdev= 0.82, samples=6 lat (msec) : 4=8.33%, 50=8.33%, 250=16.67%, 500=41.67%, 750=16.67% lat (msec) : 1000=8.33% cpu : usr=0.14%, sys=11.92%, 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=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=3443KiB/s (3526kB/s), 344KiB/s-1600KiB/s (353kB/s-1639kB/s), io=20.0MiB (20.0MB), run=4304-5948msec WRITE: bw=4820KiB/s (4936kB/s), 1143KiB/s-1722KiB/s (1171kB/s-1763kB/s), io=28.0MiB (29.4MB), run=4304-5948msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180055: Wed Aug 19 00:55:43 2026 read: IOPS=1, BW=1353KiB/s (1386kB/s)(7168KiB/5297msec) clat (msec): min=120, max=600, avg=291.03, stdev=154.07 lat (msec): min=120, max=600, avg=291.03, stdev=154.07 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 199], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 292], 60.00th=[ 305], | 70.00th=[ 305], 80.00th=[ 321], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 1939, max= 3215, per=70.71%, avg=2235.20, stdev=548.83, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=967KiB/s (990kB/s)(5120KiB/5297msec); 0 zone resets clat (msec): min=118, max=1717, avg=631.83, stdev=631.13 lat (msec): min=119, max=1717, avg=631.92, stdev=631.13 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 1928, max= 3968, per=55.66%, avg=2463.50, stdev=1003.93, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=33.33%, 500=41.67%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=2.81%, ctx=70, 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=180057: Wed Aug 19 00:55:43 2026 read: IOPS=0, BW=316KiB/s (324kB/s)(2048KiB/6477msec) clat (msec): min=124, max=662, avg=393.77, stdev=380.25 lat (msec): min=124, max=662, avg=393.77, stdev=380.25 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 126], 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= 1984, max= 2023, per=63.38%, avg=2003.50, stdev=27.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1581KiB/s (1619kB/s)(10.0MiB/6477msec); 0 zone resets clat (msec): min=157, max=1423, avg=517.17, stdev=359.67 lat (msec): min=158, max=1423, avg=517.28, stdev=359.67 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 271], | 30.00th=[ 296], 40.00th=[ 338], 50.00th=[ 376], 60.00th=[ 443], | 70.00th=[ 550], 80.00th=[ 609], 90.00th=[ 709], 95.00th=[ 1418], | 99.00th=[ 1418], 99.50th=[ 1418], 99.90th=[ 1418], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 1928, max= 4039, per=57.73%, avg=2555.29, stdev=990.65, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=16.67%, 500=41.67%, 750=33.33%, 2000=8.33% cpu : usr=0.02%, sys=5.02%, ctx=157, 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=180058: Wed Aug 19 00:55:43 2026 read: IOPS=1, BW=1091KiB/s (1117kB/s)(6144KiB/5632msec) clat (msec): min=177, max=1125, avg=406.48, stdev=356.49 lat (msec): min=177, max=1125, avg=406.48, stdev=356.49 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 1928, max= 3968, per=78.09%, avg=2468.50, stdev=1001.05, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1091KiB/s (1117kB/s)(6144KiB/5632msec); 0 zone resets clat (msec): min=142, max=732, avg=455.67, stdev=243.19 lat (msec): min=142, max=732, avg=455.77, stdev=243.21 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 234], | 30.00th=[ 234], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 514], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1928, max= 2035, per=44.78%, avg=1981.80, stdev=48.11, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=41.67%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.61%, ctx=110, 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=180059: Wed Aug 19 00:55:43 2026 read: IOPS=0, BW=857KiB/s (877kB/s)(5120KiB/5975msec) clat (msec): min=76, max=269, avg=138.41, stdev=76.27 lat (msec): min=76, max=269, avg=138.41, stdev=76.27 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 78], 10.00th=[ 78], 20.00th=[ 78], | 30.00th=[ 101], 40.00th=[ 101], 50.00th=[ 112], 60.00th=[ 112], | 70.00th=[ 136], 80.00th=[ 136], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 3856, max= 3968, per=100.00%, avg=3912.00, stdev=79.20, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1200KiB/s (1228kB/s)(7168KiB/5975msec); 0 zone resets clat (msec): min=173, max=1989, avg=693.83, stdev=607.32 lat (msec): min=173, max=1989, avg=693.94, stdev=607.34 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 174], 10.00th=[ 174], 20.00th=[ 300], | 30.00th=[ 384], 40.00th=[ 384], 50.00th=[ 600], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 743], 90.00th=[ 1989], 95.00th=[ 1989], | 99.00th=[ 1989], 99.50th=[ 1989], 99.90th=[ 1989], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 1928, max= 2035, per=44.78%, avg=1981.80, stdev=48.11, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=16.67%, 250=25.00%, 500=25.00%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.73%, ctx=102, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3162KiB/s (3238kB/s), 316KiB/s-1353KiB/s (324kB/s-1386kB/s), io=20.0MiB (20.0MB), run=5297-6477msec WRITE: bw=4427KiB/s (4533kB/s), 967KiB/s-1581KiB/s (990kB/s-1619kB/s), io=28.0MiB (29.4MB), run=5297-6477msec 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=180067: Wed Aug 19 00:55:57 2026 read: IOPS=0, BW=3563KiB/s (3648kB/s)(12.0MiB/3449msec) clat (msec): min=775, max=1569, avg=1148.76, stdev=399.36 lat (msec): min=775, max=1569, avg=1148.76, stdev=399.36 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 1099], 50.00th=[ 1099], 60.00th=[ 1099], | 70.00th=[ 1569], 80.00th=[ 1569], 90.00th=[ 1569], 95.00th=[ 1569], | 99.00th=[ 1569], 99.50th=[ 1569], 99.90th=[ 1569], 99.95th=[ 1569], | 99.99th=[ 1569] bw ( KiB/s): min= 7892, max= 7907, per=100.00%, avg=7899.50, stdev=10.61, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=2.20%, ctx=35, 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=180068: Wed Aug 19 00:55:57 2026 read: IOPS=1, BW=4506KiB/s (4614kB/s)(4096KiB/909msec) clat (nsec): min=203775k, max=203775k, avg=203774844.00, stdev= 0.00 lat (nsec): min=203778k, max=203778k, avg=203777899.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 205], 80.00th=[ 205], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 6196, max= 6196, per=100.00%, avg=6196.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=2, BW=9012KiB/s (9228kB/s)(8192KiB/909msec); 0 zone resets clat (msec): min=239, max=386, avg=313.03, stdev=103.46 lat (msec): min=240, max=386, avg=313.52, stdev=103.40 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 241], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.11%, sys=12.78%, ctx=45, 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=180069: Wed Aug 19 00:55:57 2026 write: IOPS=1, BW=4327KiB/s (4431kB/s)(12.0MiB/2840msec); 0 zone resets clat (msec): min=537, max=1246, avg=938.88, stdev=363.93 lat (msec): min=537, max=1247, avg=941.49, stdev=364.74 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 1036], 50.00th=[ 1036], 60.00th=[ 1036], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8015, max= 8192, per=85.44%, avg=8103.50, stdev=125.16, 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=3.59%, ctx=44, 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=180070: Wed Aug 19 00:55:57 2026 write: IOPS=0, BW=3557KiB/s (3642kB/s)(12.0MiB/3455msec); 0 zone resets clat (msec): min=226, max=2910, avg=1150.40, stdev=1525.24 lat (msec): min=227, max=2911, avg=1151.03, stdev=1525.10 clat percentiles (msec): | 1.00th=[ 226], 5.00th=[ 226], 10.00th=[ 226], 20.00th=[ 226], | 30.00th=[ 226], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 2903], 80.00th=[ 2903], 90.00th=[ 2903], 95.00th=[ 2903], | 99.00th=[ 2903], 99.50th=[ 2903], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 2903] bw ( KiB/s): min= 7557, max= 8192, per=83.03%, avg=7874.50, stdev=449.01, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 500=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.00%, ctx=45, 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=4750KiB/s (4864kB/s), 3563KiB/s-4506KiB/s (3648kB/s-4614kB/s), io=16.0MiB (16.8MB), run=909-3449msec WRITE: bw=9484KiB/s (9712kB/s), 3557KiB/s-9012KiB/s (3642kB/s-9228kB/s), io=32.0MiB (33.6MB), run=909-3455msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180072: Wed Aug 19 00:55:58 2026 read: IOPS=1, BW=4135KiB/s (4234kB/s)(12.0MiB/2972msec) clat (msec): min=879, max=1077, avg=990.45, stdev=101.34 lat (msec): min=879, max=1077, avg=990.45, stdev=101.34 clat percentiles (msec): | 1.00th=[ 877], 5.00th=[ 877], 10.00th=[ 877], 20.00th=[ 877], | 30.00th=[ 877], 40.00th=[ 1011], 50.00th=[ 1011], 60.00th=[ 1011], | 70.00th=[ 1083], 80.00th=[ 1083], 90.00th=[ 1083], 95.00th=[ 1083], | 99.00th=[ 1083], 99.50th=[ 1083], 99.90th=[ 1083], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7816, max= 8175, per=100.00%, avg=7995.50, stdev=253.85, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.00%, sys=14.14%, ctx=330, 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=180073: Wed Aug 19 00:55:58 2026 read: IOPS=0, BW=1434KiB/s (1468kB/s)(4096KiB/2857msec) clat (nsec): min=812164k, max=812164k, avg=812163670.00, stdev= 0.00 lat (nsec): min=812166k, max=812166k, avg=812166220.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 810], 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= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2867KiB/s (2936kB/s)(8192KiB/2857msec); 0 zone resets clat (msec): min=822, max=1179, avg=1001.14, stdev=252.72 lat (msec): min=824, max=1180, avg=1002.27, stdev=251.88 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=[ 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= 8143, max= 8143, per=86.03%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 1000=66.67%, 2000=33.33% cpu : usr=0.04%, sys=6.13%, ctx=180, 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=180074: Wed Aug 19 00:55:58 2026 write: IOPS=0, BW=3549KiB/s (3635kB/s)(12.0MiB/3462msec); 0 zone resets clat (msec): min=202, max=2214, avg=1152.77, stdev=1010.32 lat (msec): min=203, max=2215, avg=1153.68, stdev=1010.28 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 203], 40.00th=[ 1045], 50.00th=[ 1045], 60.00th=[ 1045], | 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= 8015, max= 8015, per=84.68%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=4.39%, ctx=43, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180075: Wed Aug 19 00:55:58 2026 write: IOPS=0, BW=3600KiB/s (3687kB/s)(12.0MiB/3413msec); 0 zone resets clat (msec): min=359, max=2560, avg=1136.89, stdev=1234.79 lat (msec): min=360, max=2561, avg=1137.31, stdev=1234.78 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 359], 10.00th=[ 359], 20.00th=[ 359], | 30.00th=[ 359], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 2567], 80.00th=[ 2567], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 5542, max= 7816, per=70.57%, avg=6679.00, stdev=1607.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.09%, sys=3.60%, ctx=35, 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=5513KiB/s (5645kB/s), 1434KiB/s-4135KiB/s (1468kB/s-4234kB/s), io=16.0MiB (16.8MB), run=2857-2972msec WRITE: bw=9465KiB/s (9692kB/s), 2867KiB/s-3600KiB/s (2936kB/s-3687kB/s), io=32.0MiB (33.6MB), run=2857-3462msec