== sanity test 398b: DIO and buffer IO race ============== 05:46:16 (1784281576) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.93003 s, 17.2 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=188067: Fri Jul 17 05:47:27 2026 read: IOPS=24, BW=98.1KiB/s (100kB/s)(5992KiB/61093msec) clat (usec): min=47, max=116550, avg=22024.24, stdev=11862.98 lat (usec): min=48, max=116551, avg=22025.84, stdev=11863.28 clat percentiles (usec): | 1.00th=[ 84], 5.00th=[ 8160], 10.00th=[ 10159], 20.00th=[ 12518], | 30.00th=[ 14877], 40.00th=[ 17171], 50.00th=[ 20055], 60.00th=[ 23462], | 70.00th=[ 26346], 80.00th=[ 30016], 90.00th=[ 36439], 95.00th=[ 41157], | 99.00th=[ 64750], 99.50th=[ 70779], 99.90th=[ 92799], 99.95th=[116917], | 99.99th=[116917] bw ( KiB/s): min= 47, max= 191, per=25.01%, avg=98.28, stdev=27.01, samples=120 iops : min= 11, max= 47, avg=24.05, stdev= 6.81, samples=120 write: IOPS=25, BW=103KiB/s (106kB/s)(6296KiB/61093msec); 0 zone resets clat (usec): min=949, max=744865, avg=17713.30, stdev=23370.53 lat (usec): min=950, max=744866, avg=17714.35, stdev=23370.54 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1975], 10.00th=[ 2606], 20.00th=[ 3687], | 30.00th=[ 5932], 40.00th=[ 10683], 50.00th=[ 14353], 60.00th=[ 17695], | 70.00th=[ 22152], 80.00th=[ 28705], 90.00th=[ 37487], 95.00th=[ 45351], | 99.00th=[ 63701], 99.50th=[ 79168], 99.90th=[ 99091], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 8, max= 239, per=24.97%, avg=102.62, stdev=31.83, samples=121 iops : min= 2, max= 59, avg=25.15, stdev= 7.93, samples=121 lat (usec) : 50=0.07%, 100=0.68%, 250=0.49%, 500=0.03%, 1000=0.10% lat (msec) : 2=2.57%, 4=8.50%, 10=11.91%, 20=32.91%, 50=40.10% lat (msec) : 100=2.57%, 250=0.03%, 750=0.03% cpu : usr=0.12%, sys=16.75%, ctx=8167, 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=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=188068: Fri Jul 17 05:47:27 2026 read: IOPS=24, BW=98.5KiB/s (101kB/s)(5940KiB/60325msec) clat (usec): min=36, max=112913, avg=21668.74, stdev=11662.36 lat (usec): min=37, max=112914, avg=21669.62, stdev=11662.39 clat percentiles (usec): | 1.00th=[ 85], 5.00th=[ 8717], 10.00th=[ 10421], 20.00th=[ 12387], | 30.00th=[ 14484], 40.00th=[ 16712], 50.00th=[ 19530], 60.00th=[ 22414], | 70.00th=[ 25822], 80.00th=[ 30016], 90.00th=[ 35914], 95.00th=[ 41157], | 99.00th=[ 60556], 99.50th=[ 69731], 99.90th=[100140], 99.95th=[112722], | 99.99th=[112722] bw ( KiB/s): min= 31, max= 158, per=25.09%, avg=98.62, stdev=23.79, samples=118 iops : min= 7, max= 39, avg=24.14, stdev= 6.03, samples=118 write: IOPS=26, BW=105KiB/s (108kB/s)(6348KiB/60325msec); 0 zone resets clat (usec): min=874, max=670219, avg=17575.26, stdev=21999.46 lat (usec): min=874, max=670220, avg=17576.37, stdev=21999.45 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1844], 10.00th=[ 2442], 20.00th=[ 3523], | 30.00th=[ 5473], 40.00th=[ 10159], 50.00th=[ 13960], 60.00th=[ 17171], | 70.00th=[ 22152], 80.00th=[ 28705], 90.00th=[ 38536], 95.00th=[ 45876], | 99.00th=[ 61080], 99.50th=[ 64750], 99.90th=[116917], 99.95th=[666895], | 99.99th=[666895] bw ( KiB/s): min= 16, max= 191, per=25.30%, avg=103.97, stdev=30.07, samples=119 iops : min= 4, max= 47, avg=25.49, stdev= 7.55, samples=119 lat (usec) : 50=0.10%, 100=0.62%, 250=0.33%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=3.16%, 4=8.92%, 10=11.36%, 20=34.15%, 50=38.51% lat (msec) : 100=2.60%, 250=0.10%, 750=0.03% cpu : usr=0.13%, sys=16.74%, ctx=8015, 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=188069: Fri Jul 17 05:47:27 2026 read: IOPS=25, BW=101KiB/s (104kB/s)(6028KiB/59437msec) clat (usec): min=32, max=760721, avg=21577.98, stdev=22250.04 lat (usec): min=33, max=760722, avg=21579.67, stdev=22249.78 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 7767], 10.00th=[ 10159], 20.00th=[ 12256], | 30.00th=[ 14353], 40.00th=[ 16450], 50.00th=[ 19006], 60.00th=[ 21890], | 70.00th=[ 25035], 80.00th=[ 28967], 90.00th=[ 34866], 95.00th=[ 41157], | 99.00th=[ 63701], 99.50th=[ 72877], 99.90th=[ 87557], 99.95th=[759170], | 99.99th=[759170] bw ( KiB/s): min= 39, max= 159, per=25.92%, avg=101.85, stdev=23.54, samples=117 iops : min= 9, max= 39, avg=24.95, stdev= 5.94, samples=117 write: IOPS=26, BW=105KiB/s (108kB/s)(6260KiB/59437msec); 0 zone resets clat (usec): min=1023, max=102513, avg=17055.61, stdev=14850.28 lat (usec): min=1024, max=102515, avg=17058.28, stdev=14851.71 clat percentiles (usec): | 1.00th=[ 1352], 5.00th=[ 2073], 10.00th=[ 2671], 20.00th=[ 3884], | 30.00th=[ 6325], 40.00th=[ 10290], 50.00th=[ 13435], 60.00th=[ 16909], | 70.00th=[ 22152], 80.00th=[ 28181], 90.00th=[ 35914], 95.00th=[ 45876], | 99.00th=[ 70779], 99.50th=[ 77071], 99.90th=[ 90702], 99.95th=[102237], | 99.99th=[102237] bw ( KiB/s): min= 32, max= 192, per=25.72%, avg=105.70, stdev=30.10, samples=117 iops : min= 8, max= 48, avg=25.92, stdev= 7.55, samples=117 lat (usec) : 50=0.26%, 100=0.72%, 250=0.59%, 750=0.03% lat (msec) : 2=2.41%, 4=8.17%, 10=12.53%, 20=35.32%, 50=36.88% lat (msec) : 100=3.03%, 250=0.03%, 1000=0.03% cpu : usr=0.13%, sys=16.99%, ctx=8168, 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=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=188070: Fri Jul 17 05:47:27 2026 read: IOPS=24, BW=99.9KiB/s (102kB/s)(6052KiB/60585msec) clat (usec): min=42, max=740511, avg=22223.50, stdev=22206.05 lat (usec): min=43, max=740511, avg=22225.38, stdev=22205.74 clat percentiles (usec): | 1.00th=[ 71], 5.00th=[ 8586], 10.00th=[ 10421], 20.00th=[ 12518], | 30.00th=[ 14877], 40.00th=[ 17171], 50.00th=[ 19530], 60.00th=[ 22152], | 70.00th=[ 25560], 80.00th=[ 29492], 90.00th=[ 35914], 95.00th=[ 42206], | 99.00th=[ 68682], 99.50th=[ 77071], 99.90th=[121111], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 39, max= 176, per=25.58%, avg=100.52, stdev=24.32, samples=119 iops : min= 9, max= 44, avg=24.61, stdev= 6.13, samples=119 write: IOPS=25, BW=103KiB/s (105kB/s)(6236KiB/60585msec); 0 zone resets clat (usec): min=841, max=108310, avg=17154.17, stdev=14999.29 lat (usec): min=842, max=108311, avg=17155.38, stdev=14999.18 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1795], 10.00th=[ 2409], 20.00th=[ 3589], | 30.00th=[ 5538], 40.00th=[ 10814], 50.00th=[ 14222], 60.00th=[ 17171], | 70.00th=[ 21365], 80.00th=[ 27919], 90.00th=[ 36963], 95.00th=[ 46400], | 99.00th=[ 67634], 99.50th=[ 73925], 99.90th=[106431], 99.95th=[108528], | 99.99th=[108528] bw ( KiB/s): min= 31, max= 168, per=25.12%, avg=103.25, stdev=26.67, samples=119 iops : min= 7, max= 42, avg=25.29, stdev= 6.69, samples=119 lat (usec) : 50=0.13%, 100=0.68%, 250=0.68%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.23% lat (msec) : 2=3.06%, 4=8.37%, 10=10.45%, 20=36.30%, 50=37.14% lat (msec) : 100=2.70%, 250=0.16%, 750=0.03% cpu : usr=0.11%, sys=16.54%, ctx=8173, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=393KiB/s (402kB/s), 98.1KiB/s-101KiB/s (100kB/s-104kB/s), io=23.4MiB (24.6MB), run=59437-61093msec WRITE: bw=412KiB/s (421kB/s), 103KiB/s-105KiB/s (105kB/s-108kB/s), io=24.6MiB (25.7MB), run=59437-61093msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188072: Fri Jul 17 05:47:44 2026 read: IOPS=19, BW=77.1KiB/s (78.9kB/s)(5992KiB/77726msec) clat (msec): min=4, max=714, avg=21.03, stdev=24.45 lat (msec): min=4, max=714, avg=21.03, stdev=24.45 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 12], 40.00th=[ 13], 50.00th=[ 16], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 44], 95.00th=[ 55], | 99.00th=[ 84], 99.50th=[ 94], 99.90th=[ 153], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 5, max= 230, per=25.12%, avg=76.87, stdev=42.27, samples=154 iops : min= 1, max= 57, avg=18.72, stdev=10.59, samples=154 write: IOPS=20, BW=81.0KiB/s (82.9kB/s)(6296KiB/77726msec); 0 zone resets clat (msec): min=6, max=150, avg=29.31, stdev=18.24 lat (msec): min=6, max=150, avg=29.31, stdev=18.24 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 55], 95.00th=[ 65], | 99.00th=[ 88], 99.50th=[ 106], 99.90th=[ 146], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 23, max= 232, per=25.32%, avg=81.26, stdev=41.87, samples=153 iops : min= 5, max= 58, avg=19.82, stdev=10.52, samples=153 lat (msec) : 10=13.05%, 20=40.95%, 50=35.68%, 100=9.83%, 250=0.46% lat (msec) : 750=0.03% cpu : usr=0.09%, sys=7.57%, ctx=5659, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188073: Fri Jul 17 05:47:44 2026 read: IOPS=18, BW=75.9KiB/s (77.7kB/s)(5940KiB/78284msec) clat (msec): min=3, max=762, avg=21.00, stdev=25.57 lat (msec): min=3, max=762, avg=21.00, stdev=25.57 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 30], 90.00th=[ 45], 95.00th=[ 55], | 99.00th=[ 89], 99.50th=[ 97], 99.90th=[ 142], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 8, max= 255, per=24.84%, avg=76.00, stdev=45.50, samples=154 iops : min= 2, max= 63, avg=18.50, stdev=11.42, samples=154 write: IOPS=20, BW=81.1KiB/s (83.0kB/s)(6348KiB/78284msec); 0 zone resets clat (msec): min=7, max=145, avg=29.62, stdev=18.43 lat (msec): min=7, max=145, avg=29.62, stdev=18.43 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 35], 80.00th=[ 43], 90.00th=[ 56], 95.00th=[ 66], | 99.00th=[ 93], 99.50th=[ 100], 99.90th=[ 138], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 23, max= 232, per=25.25%, avg=81.04, stdev=41.10, samples=154 iops : min= 5, max= 58, avg=19.76, stdev=10.32, samples=154 lat (msec) : 4=0.10%, 10=13.90%, 20=38.57%, 50=36.65%, 100=10.35% lat (msec) : 250=0.39%, 1000=0.03% cpu : usr=0.09%, sys=7.45%, ctx=5563, 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=188074: Fri Jul 17 05:47:44 2026 read: IOPS=19, BW=77.5KiB/s (79.3kB/s)(6028KiB/77820msec) clat (msec): min=3, max=137, avg=20.39, stdev=16.50 lat (msec): min=3, max=137, avg=20.40, stdev=16.50 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 22], 80.00th=[ 29], 90.00th=[ 44], 95.00th=[ 55], | 99.00th=[ 83], 99.50th=[ 100], 99.90th=[ 122], 99.95th=[ 138], | 99.99th=[ 138] bw ( KiB/s): min= 23, max= 247, per=25.56%, avg=78.22, stdev=43.04, samples=152 iops : min= 5, max= 61, avg=19.05, stdev=10.84, samples=152 write: IOPS=20, BW=80.4KiB/s (82.4kB/s)(6260KiB/77820msec); 0 zone resets clat (msec): min=7, max=766, avg=30.04, stdev=25.88 lat (msec): min=7, max=766, avg=30.04, stdev=25.88 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 29], | 70.00th=[ 35], 80.00th=[ 44], 90.00th=[ 55], 95.00th=[ 65], | 99.00th=[ 92], 99.50th=[ 105], 99.90th=[ 136], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 23, max= 198, per=25.10%, avg=80.58, stdev=40.80, samples=153 iops : min= 5, max= 49, avg=19.65, stdev=10.24, samples=153 lat (msec) : 4=0.03%, 10=13.90%, 20=38.41%, 50=37.63%, 100=9.41% lat (msec) : 250=0.59%, 1000=0.03% cpu : usr=0.09%, sys=7.58%, ctx=5625, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188075: Fri Jul 17 05:47:44 2026 read: IOPS=19, BW=77.7KiB/s (79.6kB/s)(6052KiB/77852msec) clat (msec): min=4, max=120, avg=20.46, stdev=16.51 lat (msec): min=4, max=120, avg=20.46, stdev=16.51 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 13], 50.00th=[ 15], 60.00th=[ 18], | 70.00th=[ 21], 80.00th=[ 29], 90.00th=[ 43], 95.00th=[ 56], | 99.00th=[ 81], 99.50th=[ 95], 99.90th=[ 115], 99.95th=[ 122], | 99.99th=[ 122] bw ( KiB/s): min= 15, max= 239, per=25.61%, avg=78.38, stdev=42.75, samples=152 iops : min= 3, max= 59, avg=19.10, stdev=10.71, samples=152 write: IOPS=20, BW=80.1KiB/s (82.0kB/s)(6236KiB/77852msec); 0 zone resets clat (msec): min=8, max=768, avg=30.03, stdev=26.25 lat (msec): min=8, max=768, avg=30.03, stdev=26.25 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 24], 60.00th=[ 28], | 70.00th=[ 36], 80.00th=[ 43], 90.00th=[ 56], 95.00th=[ 66], | 99.00th=[ 91], 99.50th=[ 113], 99.90th=[ 153], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 23, max= 224, per=25.01%, avg=80.27, stdev=41.42, samples=153 iops : min= 5, max= 56, avg=19.57, stdev=10.39, samples=153 lat (msec) : 10=13.35%, 20=40.30%, 50=36.07%, 100=9.77%, 250=0.49% lat (msec) : 1000=0.03% cpu : usr=0.10%, sys=7.51%, ctx=5636, 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=307KiB/s (314kB/s), 75.9KiB/s-77.7KiB/s (77.7kB/s-79.6kB/s), io=23.4MiB (24.6MB), run=77726-78284msec WRITE: bw=321KiB/s (329kB/s), 80.1KiB/s-81.1KiB/s (82.0kB/s-83.0kB/s), io=24.6MiB (25.7MB), run=77726-78284msec 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=188103: Fri Jul 17 05:48:07 2026 read: IOPS=21, BW=339KiB/s (347kB/s)(5920KiB/17445msec) clat (usec): min=38, max=118680, avg=23814.52, stdev=14016.60 lat (usec): min=39, max=118681, avg=23815.52, stdev=14016.57 clat percentiles (usec): | 1.00th=[ 63], 5.00th=[ 194], 10.00th=[ 10421], 20.00th=[ 14091], | 30.00th=[ 17433], 40.00th=[ 19268], 50.00th=[ 21365], 60.00th=[ 24511], | 70.00th=[ 28443], 80.00th=[ 32375], 90.00th=[ 40109], 95.00th=[ 47449], | 99.00th=[ 72877], 99.50th=[ 92799], 99.90th=[119014], 99.95th=[119014], | 99.99th=[119014] bw ( KiB/s): min= 192, max= 542, per=25.44%, avg=337.56, stdev=82.79, samples=34 iops : min= 12, max= 33, avg=20.47, stdev= 5.25, samples=34 write: IOPS=22, BW=365KiB/s (374kB/s)(6368KiB/17445msec); 0 zone resets clat (usec): min=1650, max=86119, avg=21461.58, stdev=15436.00 lat (usec): min=1652, max=86120, avg=21463.27, stdev=15436.08 clat percentiles (usec): | 1.00th=[ 2343], 5.00th=[ 3818], 10.00th=[ 4686], 20.00th=[ 6915], | 30.00th=[11207], 40.00th=[14877], 50.00th=[18220], 60.00th=[22414], | 70.00th=[27395], 80.00th=[33817], 90.00th=[44303], 95.00th=[51119], | 99.00th=[65799], 99.50th=[67634], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 128, max= 542, per=26.20%, avg=365.79, stdev=97.70, samples=34 iops : min= 8, max= 33, avg=22.26, stdev= 6.13, samples=34 lat (usec) : 50=0.26%, 100=0.91%, 250=1.69%, 500=0.13% lat (msec) : 2=0.26%, 4=3.12%, 10=12.63%, 20=30.86%, 50=45.44% lat (msec) : 100=4.56%, 250=0.13% cpu : usr=0.12%, sys=18.21%, ctx=2374, 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=188104: Fri Jul 17 05:48:07 2026 read: IOPS=19, BW=318KiB/s (326kB/s)(5744KiB/18046msec) clat (usec): min=59, max=99658, avg=25656.37, stdev=13326.78 lat (usec): min=60, max=99658, avg=25657.70, stdev=13326.81 clat percentiles (usec): | 1.00th=[ 98], 5.00th=[ 9372], 10.00th=[ 12125], 20.00th=[ 15664], | 30.00th=[ 18220], 40.00th=[ 20841], 50.00th=[ 23987], 60.00th=[ 26346], | 70.00th=[ 30278], 80.00th=[ 33817], 90.00th=[ 41681], 95.00th=[ 51119], | 99.00th=[ 66847], 99.50th=[ 70779], 99.90th=[100140], 99.95th=[100140], | 99.99th=[100140] bw ( KiB/s): min= 80, max= 541, per=23.66%, avg=313.91, stdev=110.89, samples=35 iops : min= 5, max= 33, avg=19.03, stdev= 7.04, samples=35 write: IOPS=22, BW=363KiB/s (371kB/s)(6544KiB/18046msec); 0 zone resets clat (usec): min=1795, max=84492, avg=21336.94, stdev=16840.60 lat (usec): min=1796, max=84494, avg=21338.68, stdev=16840.65 clat percentiles (usec): | 1.00th=[ 2671], 5.00th=[ 3589], 10.00th=[ 4752], 20.00th=[ 6128], | 30.00th=[10028], 40.00th=[13698], 50.00th=[17433], 60.00th=[21365], | 70.00th=[25822], 80.00th=[33817], 90.00th=[43254], 95.00th=[58459], | 99.00th=[80217], 99.50th=[82314], 99.90th=[84411], 99.95th=[84411], | 99.99th=[84411] bw ( KiB/s): min= 160, max= 512, per=25.34%, avg=353.71, stdev=88.49, samples=35 iops : min= 10, max= 32, avg=21.51, stdev= 5.62, samples=35 lat (usec) : 100=0.52%, 250=0.91%, 500=0.13% lat (msec) : 2=0.26%, 4=3.39%, 10=13.28%, 20=28.78%, 50=46.09% lat (msec) : 100=6.64% cpu : usr=0.12%, sys=17.96%, ctx=2387, 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=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=188105: Fri Jul 17 05:48:07 2026 read: IOPS=22, BW=357KiB/s (365kB/s)(6256KiB/17538msec) clat (usec): min=55, max=123934, avg=24560.71, stdev=14538.64 lat (usec): min=56, max=123934, avg=24561.63, stdev=14538.66 clat percentiles (usec): | 1.00th=[ 68], 5.00th=[ 129], 10.00th=[ 10814], 20.00th=[ 14484], | 30.00th=[ 16581], 40.00th=[ 20317], 50.00th=[ 22938], 60.00th=[ 26084], | 70.00th=[ 29754], 80.00th=[ 33817], 90.00th=[ 40109], 95.00th=[ 47973], | 99.00th=[ 78119], 99.50th=[100140], 99.90th=[124257], 99.95th=[124257], | 99.99th=[124257] bw ( KiB/s): min= 190, max= 512, per=26.76%, avg=355.06, stdev=85.24, samples=34 iops : min= 11, max= 32, avg=21.59, stdev= 5.33, samples=34 write: IOPS=21, BW=344KiB/s (352kB/s)(6032KiB/17538msec); 0 zone resets clat (usec): min=1422, max=98104, avg=20876.67, stdev=15815.21 lat (usec): min=1423, max=98105, avg=20878.46, stdev=15815.44 clat percentiles (usec): | 1.00th=[ 2376], 5.00th=[ 3425], 10.00th=[ 4490], 20.00th=[ 6521], | 30.00th=[10683], 40.00th=[13698], 50.00th=[17171], 60.00th=[21103], | 70.00th=[26870], 80.00th=[32900], 90.00th=[41681], 95.00th=[52691], | 99.00th=[64750], 99.50th=[90702], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 127, max= 512, per=24.01%, avg=335.18, stdev=91.97, samples=34 iops : min= 7, max= 32, avg=20.32, stdev= 5.78, samples=34 lat (usec) : 100=1.17%, 250=2.21%, 750=0.13% lat (msec) : 2=0.26%, 4=3.52%, 10=11.59%, 20=29.56%, 50=46.48% lat (msec) : 100=4.95%, 250=0.13% cpu : usr=0.08%, sys=17.86%, ctx=2359, 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=188106: Fri Jul 17 05:48:07 2026 read: IOPS=22, BW=363KiB/s (372kB/s)(6032KiB/16602msec) clat (usec): min=52, max=94028, avg=23093.14, stdev=13640.08 lat (usec): min=52, max=94029, avg=23094.07, stdev=13640.10 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 111], 10.00th=[ 9765], 20.00th=[13698], | 30.00th=[16057], 40.00th=[18482], 50.00th=[21103], 60.00th=[24511], | 70.00th=[27395], 80.00th=[32113], 90.00th=[40109], 95.00th=[46400], | 99.00th=[65274], 99.50th=[74974], 99.90th=[93848], 99.95th=[93848], | 99.99th=[93848] bw ( KiB/s): min= 186, max= 573, per=26.96%, avg=357.75, stdev=94.82, samples=32 iops : min= 11, max= 35, avg=21.75, stdev= 5.95, samples=32 write: IOPS=23, BW=377KiB/s (386kB/s)(6256KiB/16602msec); 0 zone resets clat (usec): min=1678, max=99418, avg=19844.81, stdev=16056.34 lat (usec): min=1679, max=99419, avg=19848.77, stdev=16058.57 clat percentiles (usec): | 1.00th=[ 2073], 5.00th=[ 3032], 10.00th=[ 3752], 20.00th=[ 6063], | 30.00th=[ 9503], 40.00th=[12518], 50.00th=[15270], 60.00th=[19006], | 70.00th=[23987], 80.00th=[32375], 90.00th=[40633], 95.00th=[53216], | 99.00th=[68682], 99.50th=[83362], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] bw ( KiB/s): min= 159, max= 541, per=26.76%, avg=373.50, stdev=91.15, samples=32 iops : min= 9, max= 33, avg=22.75, stdev= 5.71, samples=32 lat (usec) : 100=1.95%, 250=2.08%, 500=0.13%, 1000=0.13% lat (msec) : 2=0.26%, 4=5.47%, 10=11.46%, 20=33.46%, 50=39.71% lat (msec) : 100=5.34% cpu : usr=0.10%, sys=18.42%, ctx=2188, 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=1327KiB/s (1359kB/s), 318KiB/s-363KiB/s (326kB/s-372kB/s), io=23.4MiB (24.5MB), run=16602-18046msec WRITE: bw=1396KiB/s (1430kB/s), 344KiB/s-377KiB/s (352kB/s-386kB/s), io=24.6MiB (25.8MB), run=16602-18046msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188098: Fri Jul 17 05:48:11 2026 read: IOPS=17, BW=273KiB/s (279kB/s)(5920KiB/21709msec) clat (msec): min=5, max=114, avg=22.96, stdev=17.33 lat (msec): min=5, max=114, avg=22.96, stdev=17.33 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 34], 90.00th=[ 54], 95.00th=[ 61], | 99.00th=[ 80], 99.50th=[ 92], 99.90th=[ 115], 99.95th=[ 115], | 99.99th=[ 115] bw ( KiB/s): min= 94, max= 672, per=25.00%, avg=272.98, stdev=159.47, samples=43 iops : min= 5, max= 42, avg=16.37, stdev=10.07, samples=43 write: IOPS=18, BW=293KiB/s (300kB/s)(6368KiB/21709msec); 0 zone resets clat (msec): min=8, max=177, avg=33.11, stdev=20.41 lat (msec): min=8, max=177, avg=33.11, stdev=20.41 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 40], 80.00th=[ 48], 90.00th=[ 61], 95.00th=[ 71], | 99.00th=[ 96], 99.50th=[ 106], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 126, max= 704, per=25.51%, avg=293.16, stdev=142.96, samples=43 iops : min= 7, max= 44, avg=17.65, stdev= 9.07, samples=43 lat (msec) : 10=8.20%, 20=39.32%, 50=38.02%, 100=13.93%, 250=0.52% cpu : usr=0.10%, sys=7.67%, ctx=1437, 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=188099: Fri Jul 17 05:48:11 2026 read: IOPS=16, BW=264KiB/s (271kB/s)(5744KiB/21728msec) clat (msec): min=5, max=128, avg=22.31, stdev=17.64 lat (msec): min=5, max=128, avg=22.31, stdev=17.64 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 8], 10.00th=[ 9], 20.00th=[ 11], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 31], 90.00th=[ 48], 95.00th=[ 57], | 99.00th=[ 89], 99.50th=[ 120], 99.90th=[ 129], 99.95th=[ 129], | 99.99th=[ 129] bw ( KiB/s): min= 53, max= 704, per=24.34%, avg=265.74, stdev=139.97, samples=43 iops : min= 3, max= 44, avg=15.93, stdev= 8.83, samples=43 write: IOPS=18, BW=301KiB/s (308kB/s)(6544KiB/21728msec); 0 zone resets clat (msec): min=8, max=127, avg=33.32, stdev=20.21 lat (msec): min=8, max=127, avg=33.32, stdev=20.21 clat percentiles (msec): | 1.00th=[ 12], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 49], 90.00th=[ 63], 95.00th=[ 72], | 99.00th=[ 106], 99.50th=[ 107], 99.90th=[ 128], 99.95th=[ 128], | 99.99th=[ 128] bw ( KiB/s): min= 127, max= 704, per=26.14%, avg=300.37, stdev=157.14, samples=43 iops : min= 7, max= 44, avg=18.09, stdev= 9.96, samples=43 lat (msec) : 10=9.77%, 20=36.20%, 50=40.10%, 100=13.02%, 250=0.91% cpu : usr=0.09%, sys=7.76%, ctx=1446, 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=188100: Fri Jul 17 05:48:11 2026 read: IOPS=17, BW=286KiB/s (293kB/s)(6256KiB/21852msec) clat (msec): min=4, max=107, avg=23.43, stdev=18.36 lat (msec): min=4, max=107, avg=23.43, stdev=18.36 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 21], | 70.00th=[ 27], 80.00th=[ 36], 90.00th=[ 53], 95.00th=[ 63], | 99.00th=[ 85], 99.50th=[ 92], 99.90th=[ 108], 99.95th=[ 108], | 99.99th=[ 108] bw ( KiB/s): min= 63, max= 990, per=26.23%, avg=286.44, stdev=186.75, samples=43 iops : min= 3, max= 61, avg=17.23, stdev=11.75, samples=43 write: IOPS=17, BW=276KiB/s (283kB/s)(6032KiB/21852msec); 0 zone resets clat (msec): min=8, max=124, avg=33.50, stdev=21.63 lat (msec): min=8, max=124, avg=33.50, stdev=21.63 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 50], 90.00th=[ 62], 95.00th=[ 73], | 99.00th=[ 116], 99.50th=[ 118], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] bw ( KiB/s): min= 94, max= 704, per=23.57%, avg=270.79, stdev=145.86, samples=43 iops : min= 5, max= 44, avg=16.23, stdev= 9.24, samples=43 lat (msec) : 10=11.72%, 20=36.72%, 50=36.59%, 100=13.67%, 250=1.30% cpu : usr=0.08%, sys=7.37%, ctx=1409, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188101: Fri Jul 17 05:48:11 2026 read: IOPS=17, BW=275KiB/s (282kB/s)(6032KiB/21924msec) clat (msec): min=5, max=129, avg=23.44, stdev=18.80 lat (msec): min=5, max=129, avg=23.44, stdev=18.80 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 37], 90.00th=[ 53], 95.00th=[ 62], | 99.00th=[ 91], 99.50th=[ 110], 99.90th=[ 130], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 95, max= 734, per=24.75%, avg=270.30, stdev=151.00, samples=43 iops : min= 5, max= 45, avg=16.21, stdev= 9.52, samples=43 write: IOPS=17, BW=285KiB/s (292kB/s)(6256KiB/21924msec); 0 zone resets clat (msec): min=9, max=180, avg=33.29, stdev=22.08 lat (msec): min=9, max=180, avg=33.29, stdev=22.08 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 13], 10.00th=[ 15], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 48], 90.00th=[ 61], 95.00th=[ 77], | 99.00th=[ 109], 99.50th=[ 131], 99.90th=[ 182], 99.95th=[ 182], | 99.99th=[ 182] bw ( KiB/s): min= 95, max= 736, per=24.55%, avg=282.12, stdev=146.38, samples=43 iops : min= 5, max= 46, avg=16.95, stdev= 9.29, samples=43 lat (msec) : 10=10.16%, 20=39.71%, 50=35.81%, 100=13.15%, 250=1.17% cpu : usr=0.08%, sys=7.58%, ctx=1446, 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=1093KiB/s (1119kB/s), 264KiB/s-286KiB/s (271kB/s-293kB/s), io=23.4MiB (24.5MB), run=21709-21924msec WRITE: bw=1149KiB/s (1177kB/s), 276KiB/s-301KiB/s (283kB/s-308kB/s), io=24.6MiB (25.8MB), run=21709-21924msec 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=188116: Fri Jul 17 05:48:20 2026 read: IOPS=3, BW=3166KiB/s (3242kB/s)(7168KiB/2264msec) clat (msec): min=60, max=265, avg=115.36, stdev=80.60 lat (msec): min=60, max=265, avg=115.36, stdev=80.60 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 61], 10.00th=[ 61], 20.00th=[ 63], | 30.00th=[ 67], 40.00th=[ 67], 50.00th=[ 77], 60.00th=[ 87], | 70.00th=[ 87], 80.00th=[ 190], 90.00th=[ 266], 95.00th=[ 266], | 99.00th=[ 266], 99.50th=[ 266], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 1939, max= 5305, per=64.23%, avg=3727.33, stdev=1692.86, samples=3 iops : min= 1, max= 5, avg= 3.00, stdev= 2.00, samples=3 write: IOPS=2, BW=2261KiB/s (2316kB/s)(5120KiB/2264msec); 0 zone resets clat (msec): min=83, max=543, avg=282.89, stdev=199.01 lat (msec): min=83, max=543, avg=282.96, stdev=199.00 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 84], 10.00th=[ 84], 20.00th=[ 84], | 30.00th=[ 95], 40.00th=[ 95], 50.00th=[ 288], 60.00th=[ 288], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1768, max= 4079, per=30.02%, avg=2438.75, stdev=1097.08, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 100=58.33%, 250=8.33%, 500=25.00%, 750=8.33% cpu : usr=0.00%, sys=15.02%, ctx=221, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188117: Fri Jul 17 05:48:20 2026 read: IOPS=0, BW=580KiB/s (594kB/s)(2048KiB/3529msec) clat (msec): min=116, max=450, avg=283.69, stdev=236.39 lat (msec): min=116, max=450, avg=283.69, stdev=236.39 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 117], 50.00th=[ 117], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1799, max= 2043, per=33.10%, avg=1921.00, stdev=172.53, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2902KiB/s (2971kB/s)(10.0MiB/3529msec); 0 zone resets clat (msec): min=99, max=904, avg=291.98, stdev=237.04 lat (msec): min=99, max=904, avg=292.07, stdev=237.03 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 121], | 30.00th=[ 129], 40.00th=[ 155], 50.00th=[ 239], 60.00th=[ 241], | 70.00th=[ 309], 80.00th=[ 330], 90.00th=[ 401], 95.00th=[ 902], | 99.00th=[ 902], 99.50th=[ 902], 99.90th=[ 902], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 1799, max= 4096, per=34.01%, avg=2763.00, stdev=1149.37, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=33.33%, 1000=8.33% cpu : usr=0.00%, sys=19.84%, ctx=167, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188118: Fri Jul 17 05:48:20 2026 read: IOPS=1, BW=1776KiB/s (1818kB/s)(6144KiB/3460msec) clat (msec): min=61, max=550, avg=272.06, stdev=180.97 lat (msec): min=61, max=550, avg=272.06, stdev=180.97 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 247], 50.00th=[ 247], 60.00th=[ 253], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1939, max= 2043, per=34.42%, avg=1997.50, stdev=51.73, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1776KiB/s (1818kB/s)(6144KiB/3460msec); 0 zone resets clat (msec): min=65, max=754, avg=302.48, stdev=258.61 lat (msec): min=65, max=754, avg=302.57, stdev=258.63 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 66], 10.00th=[ 66], 20.00th=[ 72], | 30.00th=[ 72], 40.00th=[ 199], 50.00th=[ 199], 60.00th=[ 326], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 1939, max= 3488, per=29.06%, avg=2361.00, stdev=752.74, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=25.00%, 250=25.00%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=9.68%, ctx=72, 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=188119: Fri Jul 17 05:48:20 2026 read: IOPS=2, BW=2305KiB/s (2361kB/s)(5120KiB/2221msec) clat (msec): min=56, max=369, avg=140.60, stdev=129.37 lat (msec): min=56, max=369, avg=140.60, stdev=129.37 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 57], 10.00th=[ 57], 20.00th=[ 57], | 30.00th=[ 74], 40.00th=[ 74], 50.00th=[ 92], 60.00th=[ 92], | 70.00th=[ 112], 80.00th=[ 112], 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= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=3, BW=3227KiB/s (3305kB/s)(7168KiB/2221msec); 0 zone resets clat (msec): min=72, max=363, avg=214.32, stdev=109.09 lat (msec): min=72, max=363, avg=214.40, stdev=109.09 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 72], 10.00th=[ 72], 20.00th=[ 88], | 30.00th=[ 199], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 245], | 70.00th=[ 245], 80.00th=[ 326], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 3599, max= 3938, per=46.84%, avg=3805.00, stdev=180.91, samples=3 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=3 lat (msec) : 100=41.67%, 250=33.33%, 500=25.00% cpu : usr=0.05%, sys=12.16%, ctx=87, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5803KiB/s (5943kB/s), 580KiB/s-3166KiB/s (594kB/s-3242kB/s), io=20.0MiB (20.0MB), run=2221-3529msec WRITE: bw=8125KiB/s (8320kB/s), 1776KiB/s-3227KiB/s (1818kB/s-3305kB/s), io=28.0MiB (29.4MB), run=2221-3529msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188121: Fri Jul 17 05:48:20 2026 read: IOPS=2, BW=2682KiB/s (2746kB/s)(7168KiB/2673msec) clat (msec): min=126, max=340, avg=203.91, stdev=88.96 lat (msec): min=126, max=340, avg=203.91, stdev=88.96 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 127], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 144], 40.00th=[ 144], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 184], 80.00th=[ 321], 90.00th=[ 342], 95.00th=[ 342], | 99.00th=[ 342], 99.50th=[ 342], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 2007, max= 4087, per=49.72%, avg=2951.75, stdev=1083.68, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1915KiB/s (1961kB/s)(5120KiB/2673msec); 0 zone resets clat (msec): min=144, max=442, avg=238.47, stdev=123.71 lat (msec): min=144, max=442, avg=238.56, stdev=123.70 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 194], 60.00th=[ 194], | 70.00th=[ 264], 80.00th=[ 264], 90.00th=[ 443], 95.00th=[ 443], | 99.00th=[ 443], 99.50th=[ 443], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 1946, max= 4015, per=30.21%, avg=2511.75, stdev=1003.21, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=44.57%, ctx=619, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188122: Fri Jul 17 05:48:20 2026 read: IOPS=0, BW=635KiB/s (650kB/s)(2048KiB/3225msec) clat (msec): min=16, max=145, avg=81.10, stdev=91.04 lat (msec): min=16, max=145, avg=81.11, stdev=91.04 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 17], 10.00th=[ 17], 20.00th=[ 17], | 30.00th=[ 17], 40.00th=[ 17], 50.00th=[ 17], 60.00th=[ 146], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 1805, max= 2043, per=32.41%, avg=1924.00, stdev=168.29, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=3, BW=3175KiB/s (3251kB/s)(10.0MiB/3225msec); 0 zone resets clat (msec): min=94, max=486, avg=298.34, stdev=124.55 lat (msec): min=94, max=487, avg=298.42, stdev=124.55 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 146], | 30.00th=[ 241], 40.00th=[ 245], 50.00th=[ 296], 60.00th=[ 305], | 70.00th=[ 334], 80.00th=[ 393], 90.00th=[ 451], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 1805, max= 4096, per=35.95%, avg=2988.50, stdev=1141.00, samples=6 iops : min= 1, max= 4, avg= 2.17, stdev= 1.33, samples=6 lat (msec) : 20=8.33%, 100=8.33%, 250=33.33%, 500=50.00% cpu : usr=0.03%, sys=38.34%, ctx=387, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188123: Fri Jul 17 05:48:20 2026 read: IOPS=1, BW=1781KiB/s (1824kB/s)(6144KiB/3449msec) clat (usec): min=628, max=445660, avg=161060.21, stdev=154282.28 lat (usec): min=630, max=445660, avg=161061.19, stdev=154281.99 clat percentiles (usec): | 1.00th=[ 627], 5.00th=[ 627], 10.00th=[ 627], 20.00th=[ 58983], | 30.00th=[ 58983], 40.00th=[137364], 50.00th=[137364], 60.00th=[137364], | 70.00th=[187696], 80.00th=[187696], 90.00th=[446694], 95.00th=[446694], | 99.00th=[446694], 99.50th=[446694], 99.90th=[446694], 99.95th=[446694], | 99.99th=[446694] bw ( KiB/s): min= 4015, max= 4096, per=68.31%, avg=4055.50, stdev=57.28, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1781KiB/s (1824kB/s)(6144KiB/3449msec); 0 zone resets clat (msec): min=169, max=798, avg=396.30, stdev=291.19 lat (msec): min=169, max=798, avg=396.38, stdev=291.20 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 209], 50.00th=[ 209], 60.00th=[ 271], | 70.00th=[ 743], 80.00th=[ 743], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1946, max= 3524, per=28.64%, avg=2381.25, stdev=762.99, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 750=8.33%, 1000=8.33% cpu : usr=0.06%, sys=30.71%, ctx=527, 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=188124: Fri Jul 17 05:48:20 2026 read: IOPS=1, BW=1816KiB/s (1859kB/s)(5120KiB/2820msec) clat (usec): min=533, max=252771, avg=133926.75, stdev=100122.44 lat (usec): min=534, max=252771, avg=133927.84, stdev=100122.23 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 537], 10.00th=[ 537], 20.00th=[ 537], | 30.00th=[ 70779], 40.00th=[ 70779], 50.00th=[149947], 60.00th=[149947], | 70.00th=[196084], 80.00th=[196084], 90.00th=[252707], 95.00th=[252707], | 99.00th=[252707], 99.50th=[252707], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 2043, max= 5840, per=66.39%, avg=3941.50, stdev=2684.88, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=2, BW=2542KiB/s (2603kB/s)(7168KiB/2820msec); 0 zone resets clat (msec): min=138, max=804, avg=302.21, stdev=242.94 lat (msec): min=138, max=804, avg=303.74, stdev=243.89 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 138], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 171], 40.00th=[ 171], 50.00th=[ 178], 60.00th=[ 241], | 70.00th=[ 241], 80.00th=[ 430], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 1750, max= 3893, per=28.24%, avg=2347.20, stdev=872.78, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 1000=8.33% cpu : usr=0.00%, sys=38.56%, ctx=448, 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=5938KiB/s (6080kB/s), 635KiB/s-2682KiB/s (650kB/s-2746kB/s), io=20.0MiB (20.0MB), run=2673-3449msec WRITE: bw=8313KiB/s (8513kB/s), 1781KiB/s-3175KiB/s (1824kB/s-3251kB/s), io=28.0MiB (29.4MB), run=2673-3449msec 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=188129: Fri Jul 17 05:48:27 2026 read: IOPS=1, BW=6413KiB/s (6567kB/s)(12.0MiB/1916msec) clat (msec): min=463, max=898, avg=622.41, stdev=239.78 lat (msec): min=463, max=898, avg=622.41, stdev=239.78 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 506], 50.00th=[ 506], 60.00th=[ 506], | 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= 8159, max= 8159, per=98.25%, avg=8159.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=9.82%, ctx=59, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188130: Fri Jul 17 05:48:27 2026 read: IOPS=0, BW=2076KiB/s (2126kB/s)(4096KiB/1973msec) clat (nsec): min=574335k, max=574335k, avg=574335349.00, stdev= 0.00 lat (nsec): min=574337k, max=574337k, avg=574337250.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 5454, max= 5454, per=65.68%, avg=5454.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4152KiB/s (4252kB/s)(8192KiB/1973msec); 0 zone resets clat (msec): min=494, max=829, avg=662.31, stdev=237.09 lat (msec): min=495, max=830, avg=662.84, stdev=237.32 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 827], | 70.00th=[ 827], 80.00th=[ 827], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 8159, max= 8159, per=49.13%, 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%, 750=33.33%, 1000=33.33% cpu : usr=0.05%, sys=12.53%, ctx=82, 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=188131: Fri Jul 17 05:48:27 2026 write: IOPS=1, BW=8176KiB/s (8372kB/s)(12.0MiB/1503msec); 0 zone resets clat (msec): min=191, max=751, avg=480.14, stdev=280.67 lat (msec): min=191, max=751, avg=480.45, stdev=280.69 clat percentiles (msec): | 1.00th=[ 192], 5.00th=[ 192], 10.00th=[ 192], 20.00th=[ 192], | 30.00th=[ 192], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 5512, max= 8159, per=41.16%, avg=6835.50, stdev=1871.71, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 1000=33.33% cpu : usr=0.00%, sys=13.18%, ctx=67, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188133: Fri Jul 17 05:48:27 2026 write: IOPS=1, BW=6238KiB/s (6387kB/s)(12.0MiB/1970msec); 0 zone resets clat (msec): min=178, max=1447, avg=633.70, stdev=706.38 lat (msec): min=179, max=1447, avg=634.04, stdev=706.40 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 180], 10.00th=[ 180], 20.00th=[ 180], | 30.00th=[ 180], 40.00th=[ 275], 50.00th=[ 275], 60.00th=[ 275], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min=10937, max=10937, per=65.85%, avg=10937.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=10.41%, ctx=58, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8304KiB/s (8503kB/s), 2076KiB/s-6413KiB/s (2126kB/s-6567kB/s), io=16.0MiB (16.8MB), run=1916-1973msec WRITE: bw=16.2MiB/s (17.0MB/s), 4152KiB/s-8176KiB/s (4252kB/s-8372kB/s), io=32.0MiB (33.6MB), run=1503-1973msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188135: Fri Jul 17 05:48:28 2026 read: IOPS=1, BW=7969KiB/s (8160kB/s)(12.0MiB/1542msec) clat (msec): min=433, max=594, avg=513.43, stdev=80.49 lat (msec): min=433, max=594, avg=513.43, stdev=80.49 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 435], 10.00th=[ 435], 20.00th=[ 435], | 30.00th=[ 435], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=66.67% cpu : usr=0.00%, sys=37.77%, ctx=960, 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=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=188136: Fri Jul 17 05:48:28 2026 read: IOPS=0, BW=1903KiB/s (1949kB/s)(4096KiB/2152msec) clat (nsec): min=582911k, max=582911k, avg=582910945.00, stdev= 0.00 lat (nsec): min=582913k, max=582913k, avg=582912787.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 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= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3807KiB/s (3898kB/s)(8192KiB/2152msec); 0 zone resets clat (msec): min=248, max=1317, avg=782.93, stdev=755.86 lat (msec): min=248, max=1317, avg=783.23, stdev=755.91 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 249], 50.00th=[ 249], 60.00th=[ 1318], | 70.00th=[ 1318], 80.00th=[ 1318], 90.00th=[ 1318], 95.00th=[ 1318], | 99.00th=[ 1318], 99.50th=[ 1318], 99.90th=[ 1318], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 8094, max= 8094, per=54.19%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=14.23%, ctx=228, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188137: Fri Jul 17 05:48:28 2026 write: IOPS=1, BW=5601KiB/s (5735kB/s)(12.0MiB/2194msec); 0 zone resets clat (msec): min=163, max=1289, avg=730.45, stdev=563.29 lat (msec): min=163, max=1290, avg=730.81, stdev=563.27 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 163], 10.00th=[ 163], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 735], 50.00th=[ 735], 60.00th=[ 735], | 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= 8094, max= 8175, per=54.47%, avg=8134.50, stdev=57.28, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.05%, sys=8.80%, ctx=41, 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 rand-rw: (groupid=0, jobs=1): err= 0: pid=188138: Fri Jul 17 05:48:28 2026 write: IOPS=1, BW=6624KiB/s (6783kB/s)(12.0MiB/1855msec); 0 zone resets clat (msec): min=248, max=1147, avg=617.33, stdev=471.03 lat (msec): min=248, max=1148, avg=617.69, stdev=470.99 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 456], 50.00th=[ 456], 60.00th=[ 456], | 70.00th=[ 1150], 80.00th=[ 1150], 90.00th=[ 1150], 95.00th=[ 1150], | 99.00th=[ 1150], 99.50th=[ 1150], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 6747, max= 8175, per=49.96%, avg=7461.00, stdev=1009.75, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=10.36%, ctx=64, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=7613KiB/s (7796kB/s), 1903KiB/s-7969KiB/s (1949kB/s-8160kB/s), io=16.0MiB (16.8MB), run=1542-2152msec WRITE: bw=14.6MiB/s (15.3MB/s), 3807KiB/s-6624KiB/s (3898kB/s-6783kB/s), io=32.0MiB (33.6MB), run=1855-2194msec