== sanity test 398b: DIO and buffer IO race ============== 05:08:33 (1787303313) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.15852 s, 8.2 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=144261: Fri Aug 21 05:11:00 2026 read: IOPS=11, BW=46.4KiB/s (47.5kB/s)(5992KiB/129195msec) clat (usec): min=31, max=800063, avg=41861.42, stdev=36493.48 lat (usec): min=31, max=800064, avg=41866.04, stdev=36493.11 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 7242], 20.00th=[ 19006], | 30.00th=[ 24773], 40.00th=[ 29230], 50.00th=[ 34866], 60.00th=[ 42206], | 70.00th=[ 51119], 80.00th=[ 61604], 90.00th=[ 79168], 95.00th=[ 98042], | 99.00th=[152044], 99.50th=[173016], 99.90th=[304088], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 5, max= 111, per=25.03%, avg=46.05, stdev=21.10, samples=253 iops : min= 1, max= 27, avg=10.86, stdev= 5.33, samples=253 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(6296KiB/129195msec); 0 zone resets clat (usec): min=655, max=410104, avg=41907.19, stdev=45169.88 lat (usec): min=655, max=410106, avg=41912.73, stdev=45169.90 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1172], 10.00th=[ 1450], 20.00th=[ 4047], | 30.00th=[ 8717], 40.00th=[ 18220], 50.00th=[ 30802], 60.00th=[ 42206], | 70.00th=[ 55313], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[127402], | 99.00th=[181404], 99.50th=[242222], 99.90th=[404751], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 119, per=25.32%, avg=48.61, stdev=21.73, samples=252 iops : min= 1, max= 29, avg=11.49, stdev= 5.46, samples=252 lat (usec) : 50=0.42%, 100=3.68%, 250=0.42%, 750=0.13%, 1000=0.33% lat (msec) : 2=6.71%, 4=3.35%, 10=6.61%, 20=10.38%, 50=35.77% lat (msec) : 100=25.33%, 250=6.58%, 500=0.26%, 1000=0.03% cpu : usr=0.07%, sys=5.13%, ctx=6324, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144265: Fri Aug 21 05:11:00 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5940KiB/130102msec) clat (usec): min=30, max=455389, avg=43214.50, stdev=34167.90 lat (usec): min=30, max=455391, avg=43223.32, stdev=34166.97 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 62], 10.00th=[ 9110], 20.00th=[ 20055], | 30.00th=[ 25297], 40.00th=[ 30802], 50.00th=[ 36439], 60.00th=[ 43254], | 70.00th=[ 52691], 80.00th=[ 62653], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[158335], 99.50th=[193987], 99.90th=[291505], 99.95th=[455082], | 99.99th=[455082] bw ( KiB/s): min= 5, max= 117, per=24.78%, avg=45.60, stdev=20.77, samples=253 iops : min= 1, max= 29, avg=10.74, stdev= 5.24, samples=253 write: IOPS=12, BW=48.8KiB/s (49.0kB/s)(6348KiB/130102msec); 0 zone resets clat (usec): min=760, max=790862, avg=41213.29, stdev=45831.43 lat (usec): min=762, max=790864, avg=41216.01, stdev=45830.69 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1156], 10.00th=[ 1352], 20.00th=[ 4113], | 30.00th=[ 8586], 40.00th=[ 19792], 50.00th=[ 29230], 60.00th=[ 41157], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 98042], 95.00th=[125305], | 99.00th=[183501], 99.50th=[206570], 99.90th=[287310], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 142, per=25.18%, avg=48.34, stdev=21.76, samples=255 iops : min= 1, max= 35, avg=11.43, stdev= 5.47, samples=255 lat (usec) : 50=0.62%, 100=3.32%, 250=0.39%, 500=0.13%, 1000=0.39% lat (msec) : 2=6.71%, 4=3.19%, 10=6.90%, 20=8.79%, 50=37.14% lat (msec) : 100=25.10%, 250=7.16%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=5.03%, ctx=6345, 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=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=144267: Fri Aug 21 05:11:00 2026 read: IOPS=11, BW=46.3KiB/s (47.4kB/s)(6028KiB/130275msec) clat (usec): min=21, max=268562, avg=40430.80, stdev=30473.50 lat (usec): min=21, max=268564, avg=40432.03, stdev=30473.51 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 60], 10.00th=[ 133], 20.00th=[ 18744], | 30.00th=[ 23725], 40.00th=[ 29230], 50.00th=[ 34341], 60.00th=[ 40109], | 70.00th=[ 49021], 80.00th=[ 61604], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[137364], 99.50th=[179307], 99.90th=[246416], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 118, per=25.29%, avg=46.53, stdev=21.71, samples=252 iops : min= 1, max= 29, avg=10.98, stdev= 5.47, samples=252 write: IOPS=12, BW=48.1KiB/s (49.2kB/s)(6260KiB/130275msec); 0 zone resets clat (usec): min=794, max=1064.3k, avg=43962.07, stdev=51187.81 lat (usec): min=795, max=1064.3k, avg=43964.27, stdev=51187.61 clat percentiles (usec): | 1.00th=[ 1037], 5.00th=[ 1205], 10.00th=[ 1549], | 20.00th=[ 4015], 30.00th=[ 8160], 40.00th=[ 19530], | 50.00th=[ 30278], 60.00th=[ 43779], 70.00th=[ 58983], | 80.00th=[ 74974], 90.00th=[ 107480], 95.00th=[ 131597], | 99.00th=[ 185598], 99.50th=[ 227541], 99.90th=[ 291505], | 99.95th=[1061159], 99.99th=[1061159] bw ( KiB/s): min= 7, max= 158, per=24.96%, avg=47.92, stdev=22.07, samples=254 iops : min= 1, max= 39, avg=11.33, stdev= 5.56, samples=254 lat (usec) : 50=0.62%, 100=3.91%, 250=0.46%, 500=0.10%, 1000=0.46% lat (msec) : 2=5.86%, 4=4.04%, 10=6.51%, 20=9.64%, 50=35.81% lat (msec) : 100=24.67%, 250=7.81%, 500=0.10%, 2000=0.03% cpu : usr=0.08%, sys=4.94%, ctx=6370, 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=144268: Fri Aug 21 05:11:00 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6052KiB/129651msec) clat (usec): min=35, max=268116, avg=41702.32, stdev=32757.84 lat (usec): min=36, max=268116, avg=41703.57, stdev=32757.94 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 61], 10.00th=[ 8717], 20.00th=[ 19006], | 30.00th=[ 24511], 40.00th=[ 29754], 50.00th=[ 35390], 60.00th=[ 41157], | 70.00th=[ 49021], 80.00th=[ 60031], 90.00th=[ 81265], 95.00th=[101188], | 99.00th=[164627], 99.50th=[198181], 99.90th=[263193], 99.95th=[267387], | 99.99th=[267387] bw ( KiB/s): min= 7, max= 119, per=25.47%, avg=46.87, stdev=20.85, samples=251 iops : min= 1, max= 29, avg=11.06, stdev= 5.26, samples=251 write: IOPS=12, BW=48.1KiB/s (49.3kB/s)(6236KiB/129651msec); 0 zone resets clat (usec): min=869, max=1152.6k, avg=42373.82, stdev=53066.36 lat (usec): min=869, max=1152.6k, avg=42377.35, stdev=53065.26 clat percentiles (usec): | 1.00th=[ 1029], 5.00th=[ 1188], 10.00th=[ 1450], | 20.00th=[ 3720], 30.00th=[ 8160], 40.00th=[ 18744], | 50.00th=[ 29754], 60.00th=[ 40633], 70.00th=[ 54264], | 80.00th=[ 72877], 90.00th=[ 98042], 95.00th=[ 126354], | 99.00th=[ 196084], 99.50th=[ 235930], 99.90th=[ 438305], | 99.95th=[1149240], 99.99th=[1149240] bw ( KiB/s): min= 7, max= 133, per=25.04%, avg=48.07, stdev=21.83, samples=252 iops : min= 1, max= 33, avg=11.36, stdev= 5.51, samples=252 lat (usec) : 50=0.49%, 100=3.74%, 250=0.49%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.29% lat (msec) : 2=6.32%, 4=4.07%, 10=5.89%, 20=10.03%, 50=37.66% lat (msec) : 100=23.57%, 250=7.10%, 500=0.23%, 2000=0.03% cpu : usr=0.08%, sys=4.98%, ctx=6295, 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=184KiB/s (189kB/s), 45.7KiB/s-46.7KiB/s (46.8kB/s-47.8kB/s), io=23.4MiB (24.6MB), run=129195-130275msec WRITE: bw=193KiB/s (198kB/s), 48.1KiB/s-48.8KiB/s (49.2kB/s-49.0kB/s), io=24.6MiB (25.7MB), run=129195-130275msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144262: Fri Aug 21 05:13:29 2026 read: IOPS=5, BW=21.5KiB/s (22.0kB/s)(5992KiB/278524msec) clat (msec): min=4, max=822, avg=35.11, stdev=43.70 lat (msec): min=4, max=822, avg=35.11, stdev=43.70 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 33], 80.00th=[ 47], 90.00th=[ 81], 95.00th=[ 113], | 99.00th=[ 178], 99.50th=[ 199], 99.90th=[ 468], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 5, max= 88, per=29.65%, avg=25.50, stdev=18.18, samples=455 iops : min= 1, max= 22, avg= 5.78, stdev= 4.59, samples=455 write: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6296KiB/278524msec); 0 zone resets clat (msec): min=36, max=1219, avg=143.23, stdev=89.08 lat (msec): min=36, max=1219, avg=143.23, stdev=89.08 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 67], 20.00th=[ 81], | 30.00th=[ 91], 40.00th=[ 102], 50.00th=[ 117], 60.00th=[ 138], | 70.00th=[ 163], 80.00th=[ 197], 90.00th=[ 251], 95.00th=[ 305], | 99.00th=[ 422], 99.50th=[ 584], 99.90th=[ 776], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 5, max= 55, per=25.42%, avg=22.87, stdev=11.64, samples=530 iops : min= 1, max= 13, avg= 5.11, stdev= 2.98, samples=530 lat (msec) : 10=4.56%, 20=18.75%, 50=17.35%, 100=24.61%, 250=29.43% lat (msec) : 500=4.95%, 750=0.23%, 1000=0.10%, 2000=0.03% cpu : usr=0.04%, sys=1.07%, ctx=5228, 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=144263: Fri Aug 21 05:13:29 2026 read: IOPS=5, BW=21.5KiB/s (22.0kB/s)(5940KiB/276079msec) clat (msec): min=4, max=933, avg=35.60, stdev=47.01 lat (msec): min=4, max=933, avg=35.60, stdev=47.01 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 123], | 99.00th=[ 209], 99.50th=[ 266], 99.90th=[ 405], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 6, max= 103, per=29.22%, avg=25.13, stdev=17.92, samples=457 iops : min= 1, max= 25, avg= 5.66, stdev= 4.52, samples=457 write: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6348KiB/276079msec); 0 zone resets clat (msec): min=24, max=1201, avg=140.34, stdev=85.42 lat (msec): min=24, max=1201, avg=140.35, stdev=85.42 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 79], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 117], 60.00th=[ 136], | 70.00th=[ 159], 80.00th=[ 192], 90.00th=[ 249], 95.00th=[ 305], | 99.00th=[ 393], 99.50th=[ 468], 99.90th=[ 1070], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 6, max= 55, per=25.36%, avg=22.82, stdev=12.11, samples=536 iops : min= 1, max= 13, avg= 5.08, stdev= 3.07, samples=536 lat (msec) : 10=5.14%, 20=18.59%, 50=16.83%, 100=24.64%, 250=29.43% lat (msec) : 500=5.18%, 750=0.10%, 1000=0.03%, 2000=0.07% cpu : usr=0.04%, sys=1.04%, ctx=5105, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144264: Fri Aug 21 05:13:29 2026 read: IOPS=5, BW=22.1KiB/s (22.7kB/s)(6028KiB/272366msec) clat (msec): min=5, max=420, avg=35.71, stdev=40.90 lat (msec): min=5, max=420, avg=35.71, stdev=40.91 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 10], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 22], 60.00th=[ 26], | 70.00th=[ 34], 80.00th=[ 50], 90.00th=[ 83], 95.00th=[ 115], | 99.00th=[ 192], 99.50th=[ 268], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 5, max= 120, per=29.50%, avg=25.37, stdev=18.14, samples=460 iops : min= 1, max= 30, avg= 5.74, stdev= 4.58, samples=460 write: IOPS=5, BW=22.0KiB/s (23.5kB/s)(6260KiB/272366msec); 0 zone resets clat (msec): min=33, max=1208, avg=139.35, stdev=92.66 lat (msec): min=33, max=1208, avg=139.35, stdev=92.66 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 75], | 30.00th=[ 86], 40.00th=[ 97], 50.00th=[ 112], 60.00th=[ 132], | 70.00th=[ 161], 80.00th=[ 194], 90.00th=[ 245], 95.00th=[ 296], | 99.00th=[ 443], 99.50th=[ 542], 99.90th=[ 1183], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 63, per=25.78%, avg=23.20, stdev=12.92, samples=520 iops : min= 1, max= 15, avg= 5.19, stdev= 3.28, samples=520 lat (msec) : 10=5.40%, 20=17.77%, 50=17.64%, 100=26.46%, 250=27.96% lat (msec) : 500=4.39%, 750=0.26%, 2000=0.10% cpu : usr=0.05%, sys=1.12%, ctx=5221, 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=144266: Fri Aug 21 05:13:29 2026 read: IOPS=5, BW=21.9KiB/s (22.4kB/s)(6052KiB/276134msec) clat (msec): min=4, max=474, avg=34.90, stdev=41.21 lat (msec): min=4, max=474, avg=34.91, stdev=41.21 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 32], 80.00th=[ 47], 90.00th=[ 79], 95.00th=[ 111], | 99.00th=[ 182], 99.50th=[ 268], 99.90th=[ 409], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 7, max= 119, per=30.01%, avg=25.81, stdev=18.97, samples=454 iops : min= 1, max= 29, avg= 5.83, stdev= 4.79, samples=454 write: IOPS=5, BW=22.6KiB/s (23.1kB/s)(6236KiB/276134msec); 0 zone resets clat (msec): min=30, max=1237, avg=142.94, stdev=92.79 lat (msec): min=30, max=1237, avg=142.95, stdev=92.79 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 57], 10.00th=[ 66], 20.00th=[ 78], | 30.00th=[ 90], 40.00th=[ 105], 50.00th=[ 120], 60.00th=[ 138], | 70.00th=[ 159], 80.00th=[ 192], 90.00th=[ 249], 95.00th=[ 305], | 99.00th=[ 426], 99.50th=[ 575], 99.90th=[ 1133], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 6, max= 56, per=25.14%, avg=22.63, stdev=11.95, samples=531 iops : min= 1, max= 14, avg= 5.03, stdev= 3.03, samples=531 lat (msec) : 10=4.82%, 20=19.04%, 50=17.45%, 100=23.67%, 250=29.79% lat (msec) : 500=4.85%, 750=0.26%, 1000=0.07%, 2000=0.07% cpu : usr=0.04%, sys=1.04%, ctx=5157, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=86.2KiB/s (88.3kB/s), 21.5KiB/s-22.1KiB/s (22.0kB/s-22.7kB/s), io=23.4MiB (24.6MB), run=272366-278524msec WRITE: bw=90.3KiB/s (92.4kB/s), 22.6KiB/s-22.0KiB/s (23.1kB/s-23.5kB/s), io=24.6MiB (25.7MB), run=272366-278524msec 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=144322: Fri Aug 21 05:14:20 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(5920KiB/33309msec) clat (usec): min=39, max=421217, avg=46344.41, stdev=43256.99 lat (usec): min=39, max=421218, avg=46345.50, stdev=43256.97 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 139], | 30.00th=[ 26608], 40.00th=[ 35914], 50.00th=[ 43254], 60.00th=[ 50070], | 70.00th=[ 57410], 80.00th=[ 71828], 90.00th=[ 93848], 95.00th=[105382], | 99.00th=[196084], 99.50th=[295699], 99.90th=[421528], 99.95th=[421528], | 99.99th=[421528] bw ( KiB/s): min= 31, max= 348, per=25.10%, avg=177.95, stdev=66.17, samples=65 iops : min= 1, max= 21, avg=10.35, stdev= 4.20, samples=65 write: IOPS=11, BW=191KiB/s (196kB/s)(6368KiB/33309msec); 0 zone resets clat (usec): min=1248, max=306541, avg=40048.16, stdev=42093.42 lat (usec): min=1250, max=306544, avg=40056.60, stdev=42096.17 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 1680], 10.00th=[ 2835], 20.00th=[ 6194], | 30.00th=[ 9503], 40.00th=[ 15270], 50.00th=[ 26346], 60.00th=[ 38536], | 70.00th=[ 50070], 80.00th=[ 69731], 90.00th=[100140], 95.00th=[123208], | 99.00th=[175113], 99.50th=[189793], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 31, max= 382, per=25.70%, avg=191.71, stdev=80.46, samples=65 iops : min= 1, max= 23, avg=11.23, stdev= 5.07, samples=65 lat (usec) : 50=1.30%, 100=8.07%, 250=0.39%, 500=0.78% lat (msec) : 2=4.30%, 4=3.39%, 10=8.46%, 20=8.85%, 50=29.04% lat (msec) : 100=26.56%, 250=8.33%, 500=0.52% cpu : usr=0.06%, sys=5.21%, ctx=1417, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144323: Fri Aug 21 05:14:20 2026 read: IOPS=10, BW=174KiB/s (178kB/s)(5744KiB/33094msec) clat (usec): min=35, max=299194, avg=49802.26, stdev=38247.83 lat (usec): min=36, max=299195, avg=49807.63, stdev=38248.77 clat percentiles (usec): | 1.00th=[ 43], 5.00th=[ 61], 10.00th=[ 72], 20.00th=[ 20579], | 30.00th=[ 31327], 40.00th=[ 36963], 50.00th=[ 45876], 60.00th=[ 53216], | 70.00th=[ 62653], 80.00th=[ 76022], 90.00th=[ 95945], 95.00th=[110625], | 99.00th=[158335], 99.50th=[261096], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 31, max= 410, per=24.55%, avg=174.08, stdev=75.58, samples=64 iops : min= 1, max= 25, avg=10.11, stdev= 4.81, samples=64 write: IOPS=12, BW=198KiB/s (202kB/s)(6544KiB/33094msec); 0 zone resets clat (usec): min=1118, max=241041, avg=36565.73, stdev=41647.45 lat (usec): min=1119, max=241045, avg=36576.19, stdev=41641.91 clat percentiles (usec): | 1.00th=[ 1582], 5.00th=[ 1762], 10.00th=[ 2737], 20.00th=[ 5211], | 30.00th=[ 7767], 40.00th=[ 11600], 50.00th=[ 19530], 60.00th=[ 31327], | 70.00th=[ 47973], 80.00th=[ 62653], 90.00th=[ 99091], 95.00th=[114820], | 99.00th=[177210], 99.50th=[227541], 99.90th=[240124], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 62, max= 479, per=26.43%, avg=197.16, stdev=92.26, samples=64 iops : min= 3, max= 29, avg=11.56, stdev= 5.84, samples=64 lat (usec) : 50=0.52%, 100=5.86%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=3.39%, 4=4.17%, 10=12.11%, 20=9.64%, 50=28.13% lat (msec) : 100=26.56%, 250=8.85%, 500=0.26% cpu : usr=0.08%, sys=5.45%, ctx=1448, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=144324: Fri Aug 21 05:14:20 2026 read: IOPS=11, BW=185KiB/s (190kB/s)(6256KiB/33759msec) clat (usec): min=25, max=354354, avg=47526.28, stdev=43912.11 lat (usec): min=25, max=354356, avg=47527.58, stdev=43912.24 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 63], 10.00th=[ 70], 20.00th=[ 3392], | 30.00th=[ 27657], 40.00th=[ 33817], 50.00th=[ 39584], 60.00th=[ 47973], | 70.00th=[ 60031], 80.00th=[ 71828], 90.00th=[ 96994], 95.00th=[124257], | 99.00th=[221250], 99.50th=[291505], 99.90th=[354419], 99.95th=[354419], | 99.99th=[354419] bw ( KiB/s): min= 62, max= 411, per=26.59%, avg=188.54, stdev=84.78, samples=65 iops : min= 3, max= 25, avg=11.02, stdev= 5.35, samples=65 write: IOPS=11, BW=179KiB/s (183kB/s)(6032KiB/33759msec); 0 zone resets clat (usec): min=1432, max=459555, avg=39978.03, stdev=50045.87 lat (usec): min=1434, max=459556, avg=39980.33, stdev=50045.73 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 1778], 10.00th=[ 2671], 20.00th=[ 5276], | 30.00th=[ 8225], 40.00th=[ 14746], 50.00th=[ 23200], 60.00th=[ 36963], | 70.00th=[ 50070], 80.00th=[ 69731], 90.00th=[ 91751], 95.00th=[122160], | 99.00th=[256902], 99.50th=[337642], 99.90th=[459277], 99.95th=[459277], | 99.99th=[459277] bw ( KiB/s): min= 30, max= 410, per=23.71%, avg=176.91, stdev=85.30, samples=66 iops : min= 1, max= 25, avg=10.29, stdev= 5.44, samples=66 lat (usec) : 50=0.78%, 100=7.29%, 250=1.56%, 500=0.13%, 750=0.26% lat (msec) : 2=3.65%, 4=4.69%, 10=8.72%, 20=8.07%, 50=30.60% lat (msec) : 100=25.78%, 250=7.55%, 500=0.91% cpu : usr=0.07%, sys=5.00%, ctx=1408, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144325: Fri Aug 21 05:14:20 2026 read: IOPS=11, BW=187KiB/s (192kB/s)(6032KiB/32227msec) clat (usec): min=36, max=292638, avg=46109.88, stdev=45364.52 lat (usec): min=37, max=292638, avg=46113.35, stdev=45366.92 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 18482], 40.00th=[ 32113], 50.00th=[ 40633], 60.00th=[ 50594], | 70.00th=[ 61604], 80.00th=[ 74974], 90.00th=[ 96994], 95.00th=[113771], | 99.00th=[240124], 99.50th=[278922], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 383, per=26.34%, avg=186.73, stdev=78.01, samples=63 iops : min= 1, max= 23, avg=10.90, stdev= 4.94, samples=63 write: IOPS=12, BW=194KiB/s (199kB/s)(6256KiB/32227msec); 0 zone resets clat (usec): min=1404, max=321069, avg=37395.08, stdev=43490.67 lat (usec): min=1405, max=321072, avg=37401.67, stdev=43488.26 clat percentiles (usec): | 1.00th=[ 1516], 5.00th=[ 1696], 10.00th=[ 1975], 20.00th=[ 4359], | 30.00th=[ 7504], 40.00th=[ 12518], 50.00th=[ 20055], 60.00th=[ 31851], | 70.00th=[ 44827], 80.00th=[ 68682], 90.00th=[ 93848], 95.00th=[119014], | 99.00th=[189793], 99.50th=[193987], 99.90th=[320865], 99.95th=[320865], | 99.99th=[320865] bw ( KiB/s): min= 31, max= 372, per=26.04%, avg=194.27, stdev=74.31, samples=63 iops : min= 1, max= 23, avg=11.38, stdev= 4.74, samples=63 lat (usec) : 50=1.82%, 100=9.77%, 250=0.52%, 500=0.26%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=5.47%, 4=4.69%, 10=8.07%, 20=9.64%, 50=25.00% lat (msec) : 100=26.04%, 250=7.81%, 500=0.52% cpu : usr=0.09%, sys=5.20%, ctx=1292, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=709KiB/s (727kB/s), 174KiB/s-187KiB/s (178kB/s-192kB/s), io=23.4MiB (24.5MB), run=32227-33759msec WRITE: bw=746KiB/s (764kB/s), 179KiB/s-198KiB/s (183kB/s-202kB/s), io=24.6MiB (25.8MB), run=32227-33759msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144328: Fri Aug 21 05:15:00 2026 read: IOPS=5, BW=81.3KiB/s (83.2kB/s)(5920KiB/72842msec) clat (msec): min=5, max=458, avg=44.90, stdev=48.00 lat (msec): min=5, max=458, avg=44.90, stdev=48.00 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 44], 80.00th=[ 58], 90.00th=[ 85], 95.00th=[ 132], | 99.00th=[ 247], 99.50th=[ 368], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 30, max= 319, per=27.84%, avg=91.33, stdev=64.21, samples=126 iops : min= 1, max= 19, avg= 4.96, stdev= 4.04, samples=126 write: IOPS=5, BW=87.4KiB/s (89.5kB/s)(6368KiB/72842msec); 0 zone resets clat (msec): min=43, max=524, avg=141.06, stdev=80.14 lat (msec): min=43, max=524, avg=141.06, stdev=80.14 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 64], 10.00th=[ 68], 20.00th=[ 82], | 30.00th=[ 94], 40.00th=[ 104], 50.00th=[ 116], 60.00th=[ 132], | 70.00th=[ 150], 80.00th=[ 188], 90.00th=[ 262], 95.00th=[ 313], | 99.00th=[ 435], 99.50th=[ 514], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 30, max= 192, per=26.24%, avg=90.51, stdev=44.92, samples=138 iops : min= 1, max= 12, avg= 4.89, stdev= 2.92, samples=138 lat (msec) : 10=2.08%, 20=10.68%, 50=24.48%, 100=26.04%, 250=30.08% lat (msec) : 500=6.38%, 750=0.26% cpu : usr=0.04%, sys=1.29%, ctx=1375, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144329: Fri Aug 21 05:15:00 2026 read: IOPS=4, BW=78.7KiB/s (80.6kB/s)(5744KiB/72982msec) clat (msec): min=4, max=371, avg=44.15, stdev=42.58 lat (msec): min=4, max=371, avg=44.16, stdev=42.58 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 46], 80.00th=[ 57], 90.00th=[ 82], 95.00th=[ 116], | 99.00th=[ 224], 99.50th=[ 368], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 22, max= 317, per=29.47%, avg=96.68, stdev=60.87, samples=117 iops : min= 1, max= 19, avg= 5.32, stdev= 3.91, samples=117 write: IOPS=5, BW=89.7KiB/s (91.8kB/s)(6544KiB/72982msec); 0 zone resets clat (msec): min=36, max=510, avg=139.49, stdev=81.05 lat (msec): min=36, max=510, avg=139.49, stdev=81.05 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 58], 10.00th=[ 68], 20.00th=[ 81], | 30.00th=[ 90], 40.00th=[ 103], 50.00th=[ 117], 60.00th=[ 129], | 70.00th=[ 153], 80.00th=[ 184], 90.00th=[ 259], 95.00th=[ 309], | 99.00th=[ 430], 99.50th=[ 468], 99.90th=[ 510], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 22, max= 223, per=27.02%, avg=93.20, stdev=44.48, samples=138 iops : min= 1, max= 13, avg= 5.07, stdev= 2.86, samples=138 lat (msec) : 10=1.30%, 20=9.24%, 50=25.13%, 100=28.39%, 250=29.82% lat (msec) : 500=5.86%, 750=0.26% cpu : usr=0.04%, sys=1.30%, ctx=1466, 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=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=144330: Fri Aug 21 05:15:00 2026 read: IOPS=5, BW=88.4KiB/s (90.5kB/s)(6256KiB/70785msec) clat (msec): min=5, max=338, avg=44.48, stdev=44.38 lat (msec): min=5, max=338, avg=44.48, stdev=44.38 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 15], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 43], 80.00th=[ 54], 90.00th=[ 83], 95.00th=[ 129], | 99.00th=[ 271], 99.50th=[ 305], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 31, max= 351, per=31.08%, avg=101.96, stdev=70.56, samples=121 iops : min= 1, max= 21, avg= 5.62, stdev= 4.45, samples=121 write: IOPS=5, BW=85.2KiB/s (87.3kB/s)(6032KiB/70785msec); 0 zone resets clat (msec): min=39, max=738, avg=141.45, stdev=83.07 lat (msec): min=39, max=738, avg=141.46, stdev=83.07 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 65], 20.00th=[ 81], | 30.00th=[ 95], 40.00th=[ 108], 50.00th=[ 118], 60.00th=[ 133], | 70.00th=[ 153], 80.00th=[ 188], 90.00th=[ 251], 95.00th=[ 309], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 30, max= 221, per=25.23%, avg=87.04, stdev=43.01, samples=135 iops : min= 1, max= 13, avg= 4.67, stdev= 2.80, samples=135 lat (msec) : 10=2.21%, 20=8.07%, 50=30.08%, 100=23.70%, 250=30.47% lat (msec) : 500=5.34%, 750=0.13% cpu : usr=0.04%, sys=1.32%, ctx=1495, 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=144331: Fri Aug 21 05:15:00 2026 read: IOPS=5, BW=85.6KiB/s (87.6kB/s)(6032KiB/70475msec) clat (msec): min=6, max=269, avg=43.43, stdev=37.42 lat (msec): min=6, max=269, avg=43.44, stdev=37.42 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 19], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 33], 60.00th=[ 39], | 70.00th=[ 45], 80.00th=[ 57], 90.00th=[ 88], 95.00th=[ 131], | 99.00th=[ 188], 99.50th=[ 249], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 31, max= 349, per=30.20%, avg=99.06, stdev=64.26, samples=119 iops : min= 1, max= 21, avg= 5.45, stdev= 4.05, samples=119 write: IOPS=5, BW=88.8KiB/s (90.9kB/s)(6256KiB/70475msec); 0 zone resets clat (msec): min=45, max=521, avg=138.23, stdev=84.29 lat (msec): min=45, max=521, avg=138.23, stdev=84.29 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 59], 10.00th=[ 67], 20.00th=[ 82], | 30.00th=[ 92], 40.00th=[ 101], 50.00th=[ 111], 60.00th=[ 125], | 70.00th=[ 146], 80.00th=[ 176], 90.00th=[ 241], 95.00th=[ 326], | 99.00th=[ 485], 99.50th=[ 514], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 23, max= 192, per=26.65%, avg=91.93, stdev=43.13, samples=134 iops : min= 1, max= 12, avg= 4.99, stdev= 2.79, samples=134 lat (msec) : 10=2.47%, 20=8.59%, 50=26.17%, 100=28.39%, 250=29.43% lat (msec) : 500=4.56%, 750=0.39% cpu : usr=0.03%, sys=1.20%, ctx=1432, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=328KiB/s (336kB/s), 78.7KiB/s-88.4KiB/s (80.6kB/s-90.5kB/s), io=23.4MiB (24.5MB), run=70475-72982msec WRITE: bw=345KiB/s (354kB/s), 85.2KiB/s-89.7KiB/s (87.3kB/s-91.8kB/s), io=24.6MiB (25.8MB), run=70475-72982msec 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=144355: Fri Aug 21 05:15:16 2026 read: IOPS=2, BW=2268KiB/s (2323kB/s)(7168KiB/3160msec) clat (msec): min=80, max=367, avg=181.12, stdev=91.97 lat (msec): min=80, max=367, avg=181.12, stdev=91.97 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 114], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 174], 60.00th=[ 188], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 2035, max= 4196, per=88.34%, avg=3327.00, stdev=1140.91, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1620KiB/s (1659kB/s)(5120KiB/3160msec); 0 zone resets clat (msec): min=215, max=459, avg=340.04, stdev=105.38 lat (msec): min=215, max=459, avg=340.12, stdev=105.38 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 253], 40.00th=[ 253], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 460], 95.00th=[ 460], | 99.00th=[ 460], 99.50th=[ 460], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 1875, max= 4087, per=50.28%, avg=2651.33, stdev=1244.70, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=50.00%, 500=41.67% cpu : usr=0.00%, sys=5.82%, ctx=90, 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=144356: Fri Aug 21 05:15:16 2026 read: IOPS=0, BW=377KiB/s (386kB/s)(2048KiB/5437msec) clat (msec): min=134, max=162, avg=148.13, stdev=19.63 lat (msec): min=134, max=162, avg=148.13, stdev=19.63 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 136], 10.00th=[ 136], 20.00th=[ 136], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 163], | 70.00th=[ 163], 80.00th=[ 163], 90.00th=[ 163], 95.00th=[ 163], | 99.00th=[ 163], 99.50th=[ 163], 99.90th=[ 163], 99.95th=[ 163], | 99.99th=[ 163] bw ( KiB/s): min= 1505, max= 2039, per=47.05%, avg=1772.00, stdev=377.60, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1883KiB/s (1929kB/s)(10.0MiB/5437msec); 0 zone resets clat (msec): min=239, max=1380, avg=509.58, stdev=321.99 lat (msec): min=239, max=1380, avg=509.77, stdev=321.99 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 338], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 393], 60.00th=[ 477], | 70.00th=[ 510], 80.00th=[ 523], 90.00th=[ 558], 95.00th=[ 1385], | 99.00th=[ 1385], 99.50th=[ 1385], 99.90th=[ 1385], 99.95th=[ 1385], | 99.99th=[ 1385] bw ( KiB/s): min= 1505, max= 4087, per=41.65%, avg=2196.00, stdev=785.08, samples=8 iops : min= 1, max= 3, avg= 1.25, stdev= 0.71, samples=8 lat (msec) : 250=25.00%, 500=41.67%, 750=25.00%, 2000=8.33% cpu : usr=0.00%, sys=3.62%, ctx=129, 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=144357: Fri Aug 21 05:15:16 2026 read: IOPS=1, BW=1289KiB/s (1320kB/s)(6144KiB/4768msec) clat (msec): min=97, max=476, avg=247.44, stdev=134.96 lat (msec): min=97, max=476, avg=247.45, stdev=134.95 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 97], 10.00th=[ 97], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 176], 60.00th=[ 262], | 70.00th=[ 309], 80.00th=[ 309], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 1984, max= 2043, per=53.85%, avg=2028.00, stdev=24.76, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 write: IOPS=1, BW=1289KiB/s (1320kB/s)(6144KiB/4768msec); 0 zone resets clat (msec): min=220, max=892, avg=497.28, stdev=260.03 lat (msec): min=220, max=893, avg=497.39, stdev=260.05 clat percentiles (msec): | 1.00th=[ 222], 5.00th=[ 222], 10.00th=[ 222], 20.00th=[ 245], | 30.00th=[ 245], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 558], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 894], 95.00th=[ 894], | 99.00th=[ 894], 99.50th=[ 894], 99.90th=[ 894], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 1984, max= 3750, per=44.98%, avg=2371.80, stdev=770.84, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=33.33%, 500=33.33%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.38%, ctx=95, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144358: Fri Aug 21 05:15:16 2026 read: IOPS=0, BW=965KiB/s (988kB/s)(5120KiB/5307msec) clat (msec): min=104, max=579, avg=286.62, stdev=200.46 lat (msec): min=104, max=579, avg=286.63, stdev=200.46 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 105], 10.00th=[ 105], 20.00th=[ 105], | 30.00th=[ 129], 40.00th=[ 129], 50.00th=[ 224], 60.00th=[ 224], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 1984, max= 4079, per=71.71%, avg=2700.67, stdev=1193.99, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1351KiB/s (1383kB/s)(7168KiB/5307msec); 0 zone resets clat (msec): min=257, max=1000, avg=536.50, stdev=277.33 lat (msec): min=257, max=1000, avg=536.58, stdev=277.34 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 313], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 456], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 760], 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= 1875, max= 4087, per=53.58%, avg=2825.40, stdev=1153.63, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=25.00%, 500=41.67%, 750=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=3.68%, ctx=74, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3767KiB/s (3857kB/s), 377KiB/s-2268KiB/s (386kB/s-2323kB/s), io=20.0MiB (20.0MB), run=3160-5437msec WRITE: bw=5273KiB/s (5400kB/s), 1289KiB/s-1883KiB/s (1320kB/s-1929kB/s), io=28.0MiB (29.4MB), run=3160-5437msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144354: Fri Aug 21 05:15:16 2026 read: IOPS=2, BW=2175KiB/s (2228kB/s)(7168KiB/3295msec) clat (usec): min=633, max=367069, avg=183002.09, stdev=106644.18 lat (usec): min=634, max=367070, avg=183003.38, stdev=106644.29 clat percentiles (usec): | 1.00th=[ 635], 5.00th=[ 635], 10.00th=[ 635], 20.00th=[156238], | 30.00th=[181404], 40.00th=[181404], 50.00th=[187696], 60.00th=[189793], | 70.00th=[189793], 80.00th=[198181], 90.00th=[367002], 95.00th=[367002], | 99.00th=[367002], 99.50th=[367002], 99.90th=[367002], 99.95th=[367002], | 99.99th=[367002] bw ( KiB/s): min= 1582, max= 3984, per=76.33%, avg=2847.25, stdev=1231.81, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1554KiB/s (1591kB/s)(5120KiB/3295msec); 0 zone resets clat (msec): min=214, max=526, avg=325.88, stdev=126.90 lat (msec): min=214, max=526, avg=326.17, stdev=126.96 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1910, max= 2043, per=37.69%, avg=1968.25, stdev=65.36, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (usec) : 750=8.33% lat (msec) : 250=58.33%, 500=25.00%, 750=8.33% cpu : usr=0.18%, sys=16.85%, ctx=185, 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=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=144359: Fri Aug 21 05:15:16 2026 read: IOPS=0, BW=373KiB/s (382kB/s)(2048KiB/5490msec) clat (usec): min=1194, max=376658, avg=188926.79, stdev=265493.38 lat (usec): min=1195, max=376661, avg=188928.45, stdev=265494.15 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1188], 10.00th=[ 1188], 20.00th=[ 1188], | 30.00th=[ 1188], 40.00th=[ 1188], 50.00th=[ 1188], 60.00th=[375391], | 70.00th=[375391], 80.00th=[375391], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 1910, max= 2048, per=53.06%, avg=1979.00, stdev=97.58, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1865KiB/s (1910kB/s)(10.0MiB/5490msec); 0 zone resets clat (msec): min=81, max=952, avg=481.95, stdev=295.88 lat (msec): min=81, max=953, avg=482.10, stdev=296.01 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 180], | 30.00th=[ 268], 40.00th=[ 309], 50.00th=[ 388], 60.00th=[ 409], | 70.00th=[ 676], 80.00th=[ 718], 90.00th=[ 844], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1988, max= 4087, per=51.04%, avg=2665.50, stdev=1006.96, samples=6 iops : min= 1, max= 3, avg= 1.83, stdev= 0.98, samples=6 lat (msec) : 2=8.33%, 100=8.33%, 250=8.33%, 500=41.67%, 750=16.67% lat (msec) : 1000=16.67% cpu : usr=0.02%, sys=10.84%, ctx=172, 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=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=144360: Fri Aug 21 05:15:16 2026 read: IOPS=1, BW=1750KiB/s (1792kB/s)(6144KiB/3511msec) clat (usec): min=1203, max=372365, avg=237780.74, stdev=126993.50 lat (usec): min=1204, max=372366, avg=237782.00, stdev=126993.81 clat percentiles (usec): | 1.00th=[ 1205], 5.00th=[ 1205], 10.00th=[ 1205], 20.00th=[233833], | 30.00th=[233833], 40.00th=[235930], 50.00th=[235930], 60.00th=[274727], | 70.00th=[312476], 80.00th=[312476], 90.00th=[371196], 95.00th=[371196], | 99.00th=[371196], 99.50th=[371196], 99.90th=[371196], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 1917, max= 4087, per=67.02%, avg=2499.75, stdev=1058.86, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1750KiB/s (1792kB/s)(6144KiB/3511msec); 0 zone resets clat (msec): min=159, max=701, avg=332.77, stdev=192.61 lat (msec): min=159, max=701, avg=332.85, stdev=192.63 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 159], 10.00th=[ 159], 20.00th=[ 211], | 30.00th=[ 211], 40.00th=[ 268], 50.00th=[ 268], 60.00th=[ 317], | 70.00th=[ 338], 80.00th=[ 338], 90.00th=[ 701], 95.00th=[ 701], | 99.00th=[ 701], 99.50th=[ 701], 99.90th=[ 701], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 1709, max= 2043, per=36.66%, avg=1914.20, stdev=127.25, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 2=8.33%, 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=15.61%, ctx=210, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144361: Fri Aug 21 05:15:16 2026 read: IOPS=1, BW=1212KiB/s (1241kB/s)(5120KiB/4225msec) clat (usec): min=572, max=377390, avg=140051.17, stdev=162037.47 lat (usec): min=573, max=377392, avg=140052.49, stdev=162037.33 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 783], 40.00th=[ 783], 50.00th=[ 93848], 60.00th=[ 93848], | 70.00th=[227541], 80.00th=[227541], 90.00th=[375391], 95.00th=[375391], | 99.00th=[375391], 99.50th=[375391], 99.90th=[375391], 99.95th=[375391], | 99.99th=[375391] bw ( KiB/s): min= 2003, max= 6144, per=100.00%, avg=4073.50, stdev=2928.13, samples=2 iops : min= 1, max= 6, avg= 3.50, stdev= 3.54, samples=2 write: IOPS=1, BW=1697KiB/s (1737kB/s)(7168KiB/4225msec); 0 zone resets clat (msec): min=165, max=1198, avg=452.13, stdev=410.62 lat (msec): min=165, max=1198, avg=452.22, stdev=410.62 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 167], | 30.00th=[ 174], 40.00th=[ 174], 50.00th=[ 247], 60.00th=[ 359], | 70.00th=[ 359], 80.00th=[ 860], 90.00th=[ 1200], 95.00th=[ 1200], | 99.00th=[ 1200], 99.50th=[ 1200], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 1992, max= 4007, per=51.33%, avg=2680.67, stdev=1148.92, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (usec) : 750=8.33%, 1000=8.33% lat (msec) : 100=8.33%, 250=41.67%, 500=16.67%, 1000=8.33%, 2000=8.33% cpu : usr=0.00%, sys=13.14%, ctx=134, 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=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=3730KiB/s (3820kB/s), 373KiB/s-2175KiB/s (382kB/s-2228kB/s), io=20.0MiB (20.0MB), run=3295-5490msec WRITE: bw=5223KiB/s (5348kB/s), 1554KiB/s-1865KiB/s (1591kB/s-1910kB/s), io=28.0MiB (29.4MB), run=3295-5490msec 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=144368: Fri Aug 21 05:15:31 2026 read: IOPS=0, BW=4024KiB/s (4120kB/s)(12.0MiB/3054msec) clat (msec): min=223, max=1364, avg=983.10, stdev=657.49 lat (msec): min=223, max=1364, avg=983.11, stdev=657.49 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 1368], 50.00th=[ 1368], 60.00th=[ 1368], | 70.00th=[ 1368], 80.00th=[ 1368], 90.00th=[ 1368], 95.00th=[ 1368], | 99.00th=[ 1368], 99.50th=[ 1368], 99.90th=[ 1368], 99.95th=[ 1368], | 99.99th=[ 1368] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.05%, 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=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=144369: Fri Aug 21 05:15:31 2026 read: IOPS=0, BW=1119KiB/s (1146kB/s)(4096KiB/3661msec) clat (nsec): min=1277.7M, max=1277.7M, avg=1277694608.00, stdev= 0.00 lat (nsec): min=1277.7M, max=1277.7M, avg=1277696745.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1284], 5.00th=[ 1284], 10.00th=[ 1284], 20.00th=[ 1284], | 30.00th=[ 1284], 40.00th=[ 1284], 50.00th=[ 1284], 60.00th=[ 1284], | 70.00th=[ 1284], 80.00th=[ 1284], 90.00th=[ 1284], 95.00th=[ 1284], | 99.00th=[ 1284], 99.50th=[ 1284], 99.90th=[ 1284], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 8062, max= 8062, per=100.00%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2238KiB/s (2291kB/s)(8192KiB/3661msec); 0 zone resets clat (msec): min=630, max=1579, avg=1105.27, stdev=671.09 lat (msec): min=631, max=1580, avg=1105.59, stdev=670.92 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 1586], | 70.00th=[ 1586], 80.00th=[ 1586], 90.00th=[ 1586], 95.00th=[ 1586], | 99.00th=[ 1586], 99.50th=[ 1586], 99.90th=[ 1586], 99.95th=[ 1586], | 99.99th=[ 1586] bw ( KiB/s): min= 8078, max= 8078, per=90.26%, avg=8078.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=66.67% cpu : usr=0.00%, sys=3.01%, ctx=42, 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=144370: Fri Aug 21 05:15:31 2026 write: IOPS=1, BW=5256KiB/s (5382kB/s)(12.0MiB/2338msec); 0 zone resets clat (msec): min=478, max=899, avg=739.02, stdev=227.91 lat (msec): min=479, max=899, avg=739.55, stdev=227.57 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 902], 80.00th=[ 902], 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= 6059, max= 8062, per=78.89%, avg=7060.50, stdev=1416.33, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=4.36%, 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=144371: Fri Aug 21 05:15:31 2026 write: IOPS=1, BW=5216KiB/s (5341kB/s)(12.0MiB/2356msec); 0 zone resets clat (msec): min=416, max=1343, avg=736.03, stdev=525.97 lat (msec): min=421, max=1343, avg=738.06, stdev=524.50 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 418], 10.00th=[ 418], 20.00th=[ 418], | 30.00th=[ 418], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 1351], 80.00th=[ 1351], 90.00th=[ 1351], 95.00th=[ 1351], | 99.00th=[ 1351], 99.50th=[ 1351], 99.90th=[ 1351], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 6131, max= 8175, per=79.92%, avg=7153.00, stdev=1445.33, 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=0.00%, sys=3.86%, ctx=47, 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=4475KiB/s (4583kB/s), 1119KiB/s-4024KiB/s (1146kB/s-4120kB/s), io=16.0MiB (16.8MB), run=3054-3661msec WRITE: bw=8951KiB/s (9165kB/s), 2238KiB/s-5256KiB/s (2291kB/s-5382kB/s), io=32.0MiB (33.6MB), run=2338-3661msec rand-rw: (groupid=0, jobs=1): err= 0: pid=144372: Fri Aug 21 05:15:32 2026 read: IOPS=1, BW=4681KiB/s (4793kB/s)(12.0MiB/2625msec) clat (msec): min=792, max=885, avg=840.96, stdev=46.78 lat (msec): min=792, max=885, avg=840.96, stdev=46.78 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 844], 60.00th=[ 844], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8015, max= 8062, per=100.00%, avg=8038.50, stdev=33.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=10.10%, ctx=213, 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=144373: Fri Aug 21 05:15:32 2026 read: IOPS=0, BW=1343KiB/s (1375kB/s)(4096KiB/3051msec) clat (nsec): min=1001.7M, max=1001.7M, avg=1001710729.00, stdev= 0.00 lat (nsec): min=1001.7M, max=1001.7M, avg=1001714913.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1003], 5.00th=[ 1003], 10.00th=[ 1003], 20.00th=[ 1003], | 30.00th=[ 1003], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 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= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2685KiB/s (2749kB/s)(8192KiB/3051msec); 0 zone resets clat (msec): min=391, max=1593, avg=992.62, stdev=850.30 lat (msec): min=391, max=1596, avg=994.37, stdev=852.24 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 1603], | 70.00th=[ 1603], 80.00th=[ 1603], 90.00th=[ 1603], 95.00th=[ 1603], | 99.00th=[ 1603], 99.50th=[ 1603], 99.90th=[ 1603], 99.95th=[ 1603], | 99.99th=[ 1603] bw ( KiB/s): min= 8159, max= 8159, per=96.02%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.00%, sys=4.30%, ctx=153, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=144374: Fri Aug 21 05:15:32 2026 write: IOPS=0, BW=3187KiB/s (3263kB/s)(12.0MiB/3856msec); 0 zone resets clat (msec): min=256, max=2044, avg=1212.98, stdev=900.12 lat (msec): min=257, max=2044, avg=1213.42, stdev=900.14 clat percentiles (msec): | 1.00th=[ 257], 5.00th=[ 257], 10.00th=[ 257], 20.00th=[ 257], | 30.00th=[ 257], 40.00th=[ 1334], 50.00th=[ 1334], 60.00th=[ 1334], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 8110, max= 8126, per=95.54%, avg=8118.00, stdev=11.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.48%, ctx=57, 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=144375: Fri Aug 21 05:15:32 2026 write: IOPS=1, BW=4135KiB/s (4234kB/s)(12.0MiB/2972msec); 0 zone resets clat (msec): min=556, max=1484, avg=948.39, stdev=480.57 lat (msec): min=557, max=1486, avg=949.15, stdev=481.22 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 5979, max= 8015, per=82.35%, avg=6997.00, stdev=1439.67, 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=0.00%, sys=4.81%, ctx=50, 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=5370KiB/s (5499kB/s), 1343KiB/s-4681KiB/s (1375kB/s-4793kB/s), io=16.0MiB (16.8MB), run=2625-3051msec WRITE: bw=8498KiB/s (8702kB/s), 2685KiB/s-4135KiB/s (2749kB/s-4234kB/s), io=32.0MiB (33.6MB), run=2972-3856msec