== sanity test 398b: DIO and buffer IO race ============== 18:18:56 (1781821136) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 2.84146 s, 17.7 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=187098: Thu Jun 18 18:20:15 2026 read: IOPS=21, BW=86.4KiB/s (88.5kB/s)(5992KiB/69320msec) clat (usec): min=47, max=722487, avg=25172.79, stdev=23506.36 lat (usec): min=48, max=722488, avg=25174.05, stdev=23506.35 clat percentiles (usec): | 1.00th=[ 79], 5.00th=[ 8717], 10.00th=[ 10552], 20.00th=[ 13698], | 30.00th=[ 16188], 40.00th=[ 18744], 50.00th=[ 21627], 60.00th=[ 24773], | 70.00th=[ 28705], 80.00th=[ 33817], 90.00th=[ 43254], 95.00th=[ 51643], | 99.00th=[ 83362], 99.50th=[100140], 99.90th=[128451], 99.95th=[725615], | 99.99th=[725615] bw ( KiB/s): min= 6, max= 144, per=24.75%, avg=85.64, stdev=25.47, samples=137 iops : min= 1, max= 36, avg=20.86, stdev= 6.41, samples=137 write: IOPS=22, BW=90.8KiB/s (93.0kB/s)(6296KiB/69320msec); 0 zone resets clat (usec): min=1003, max=164879, avg=19926.73, stdev=17679.25 lat (usec): min=1004, max=164879, avg=19928.39, stdev=17679.16 clat percentiles (usec): | 1.00th=[ 1385], 5.00th=[ 2212], 10.00th=[ 2900], 20.00th=[ 4293], | 30.00th=[ 7242], 40.00th=[ 11731], 50.00th=[ 16057], 60.00th=[ 20317], | 70.00th=[ 25297], 80.00th=[ 32113], 90.00th=[ 43254], 95.00th=[ 53216], | 99.00th=[ 76022], 99.50th=[ 91751], 99.90th=[145753], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 23, max= 192, per=24.94%, avg=90.26, stdev=32.44, samples=136 iops : min= 5, max= 48, avg=22.02, stdev= 8.16, samples=136 lat (usec) : 50=0.07%, 100=0.85%, 250=0.62% lat (msec) : 2=2.15%, 4=7.62%, 10=11.00%, 20=30.11%, 50=41.73% lat (msec) : 100=5.37%, 250=0.46%, 750=0.03% cpu : usr=0.11%, sys=14.40%, ctx=8408, 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=187099: Thu Jun 18 18:20:15 2026 read: IOPS=21, BW=86.9KiB/s (88.0kB/s)(5940KiB/68381msec) clat (usec): min=32, max=130082, avg=25128.54, stdev=15155.37 lat (usec): min=33, max=130083, avg=25130.32, stdev=15156.02 clat percentiles (usec): | 1.00th=[ 79], 5.00th=[ 8586], 10.00th=[ 10814], 20.00th=[ 13960], | 30.00th=[ 16450], 40.00th=[ 19006], 50.00th=[ 22152], 60.00th=[ 25297], | 70.00th=[ 29230], 80.00th=[ 34866], 90.00th=[ 43254], 95.00th=[ 52691], | 99.00th=[ 80217], 99.50th=[ 88605], 99.90th=[122160], 99.95th=[130548], | 99.99th=[130548] bw ( KiB/s): min= 6, max= 167, per=24.91%, avg=86.19, stdev=27.93, samples=135 iops : min= 1, max= 41, avg=21.01, stdev= 7.00, samples=135 write: IOPS=23, BW=92.8KiB/s (95.1kB/s)(6348KiB/68381msec); 0 zone resets clat (usec): min=928, max=716995, avg=19421.94, stdev=24617.06 lat (usec): min=928, max=716997, avg=19423.32, stdev=24617.13 clat percentiles (usec): | 1.00th=[ 1549], 5.00th=[ 2278], 10.00th=[ 2933], 20.00th=[ 4080], | 30.00th=[ 6128], 40.00th=[ 11207], 50.00th=[ 14746], 60.00th=[ 18482], | 70.00th=[ 23200], 80.00th=[ 30278], 90.00th=[ 41681], 95.00th=[ 54264], | 99.00th=[ 80217], 99.50th=[ 89654], 99.90th=[116917], 99.95th=[717226], | 99.99th=[717226] bw ( KiB/s): min= 7, max= 215, per=25.52%, avg=92.39, stdev=32.73, samples=134 iops : min= 1, max= 53, avg=22.56, stdev= 8.24, samples=134 lat (usec) : 50=0.03%, 100=0.81%, 250=0.65%, 1000=0.03% lat (msec) : 2=1.82%, 4=8.17%, 10=11.59%, 20=30.31%, 50=40.20% lat (msec) : 100=6.09%, 250=0.26%, 750=0.03% cpu : usr=0.12%, sys=14.38%, ctx=8395, 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=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=187100: Thu Jun 18 18:20:15 2026 read: IOPS=21, BW=86.0KiB/s (89.1kB/s)(6028KiB/69295msec) clat (usec): min=44, max=135869, avg=24663.85, stdev=14611.24 lat (usec): min=45, max=135869, avg=24666.28, stdev=14611.50 clat percentiles (usec): | 1.00th=[ 89], 5.00th=[ 8848], 10.00th=[ 11076], 20.00th=[ 13829], | 30.00th=[ 16319], 40.00th=[ 19268], 50.00th=[ 22152], 60.00th=[ 24773], | 70.00th=[ 28443], 80.00th=[ 32637], 90.00th=[ 41681], 95.00th=[ 51643], | 99.00th=[ 74974], 99.50th=[ 85459], 99.90th=[117965], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 23, max= 175, per=25.19%, avg=87.15, stdev=27.48, samples=136 iops : min= 5, max= 43, avg=21.24, stdev= 6.86, samples=136 write: IOPS=22, BW=90.3KiB/s (92.5kB/s)(6260KiB/69295msec); 0 zone resets clat (usec): min=1025, max=767190, avg=20371.44, stdev=25727.44 lat (usec): min=1027, max=767192, avg=20375.02, stdev=25726.53 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 2278], 10.00th=[ 2835], 20.00th=[ 4047], | 30.00th=[ 6849], 40.00th=[ 12125], 50.00th=[ 16057], 60.00th=[ 19792], | 70.00th=[ 25560], 80.00th=[ 31851], 90.00th=[ 43779], 95.00th=[ 54264], | 99.00th=[ 78119], 99.50th=[ 87557], 99.90th=[120062], 99.95th=[767558], | 99.99th=[767558] bw ( KiB/s): min= 24, max= 175, per=24.96%, avg=90.37, stdev=30.49, samples=136 iops : min= 6, max= 43, avg=22.05, stdev= 7.67, samples=136 lat (usec) : 50=0.03%, 100=0.72%, 250=0.62%, 500=0.03%, 750=0.03% lat (msec) : 2=1.99%, 4=8.14%, 10=10.19%, 20=30.11%, 50=42.12% lat (msec) : 100=5.73%, 250=0.26%, 1000=0.03% cpu : usr=0.11%, sys=14.32%, ctx=8465, 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=187101: Thu Jun 18 18:20:15 2026 read: IOPS=21, BW=87.6KiB/s (89.7kB/s)(6052KiB/69071msec) clat (usec): min=34, max=123662, avg=25024.98, stdev=14539.17 lat (usec): min=34, max=123663, avg=25026.35, stdev=14539.29 clat percentiles (usec): | 1.00th=[ 59], 5.00th=[ 8979], 10.00th=[ 11076], 20.00th=[ 14353], | 30.00th=[ 17171], 40.00th=[ 19792], 50.00th=[ 22152], 60.00th=[ 25297], | 70.00th=[ 28443], 80.00th=[ 33162], 90.00th=[ 42206], 95.00th=[ 50594], | 99.00th=[ 81265], 99.50th=[ 90702], 99.90th=[102237], 99.95th=[123208], | 99.99th=[123208] bw ( KiB/s): min= 24, max= 151, per=25.41%, avg=87.93, stdev=25.64, samples=136 iops : min= 6, max= 37, avg=21.43, stdev= 6.40, samples=136 write: IOPS=22, BW=90.3KiB/s (92.5kB/s)(6236KiB/69071msec); 0 zone resets clat (usec): min=913, max=747082, avg=19869.01, stdev=25189.10 lat (usec): min=914, max=747084, avg=19870.45, stdev=25189.02 clat percentiles (usec): | 1.00th=[ 1418], 5.00th=[ 2114], 10.00th=[ 2638], 20.00th=[ 3949], | 30.00th=[ 6325], 40.00th=[ 11207], 50.00th=[ 15270], 60.00th=[ 19268], | 70.00th=[ 24511], 80.00th=[ 31851], 90.00th=[ 43779], 95.00th=[ 52691], | 99.00th=[ 74974], 99.50th=[ 87557], 99.90th=[112722], 99.95th=[750781], | 99.99th=[750781] bw ( KiB/s): min= 23, max= 175, per=24.95%, avg=90.32, stdev=30.87, samples=136 iops : min= 5, max= 43, avg=22.04, stdev= 7.71, samples=136 lat (usec) : 50=0.10%, 100=0.62%, 250=0.49%, 750=0.03%, 1000=0.10% lat (msec) : 2=2.25%, 4=8.11%, 10=10.58%, 20=29.20%, 50=42.61% lat (msec) : 100=5.73%, 250=0.16%, 750=0.03% cpu : usr=0.11%, sys=14.31%, ctx=8349, 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=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=346KiB/s (355kB/s), 86.4KiB/s-87.6KiB/s (88.5kB/s-89.7kB/s), io=23.4MiB (24.6MB), run=68381-69320msec WRITE: bw=363KiB/s (371kB/s), 90.3KiB/s-92.8KiB/s (92.5kB/s-95.1kB/s), io=24.6MiB (25.7MB), run=68381-69320msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187094: Thu Jun 18 18:20:30 2026 read: IOPS=17, BW=70.0KiB/s (72.7kB/s)(5992KiB/84428msec) clat (msec): min=4, max=727, avg=22.69, stdev=27.26 lat (msec): min=4, max=727, avg=22.70, stdev=27.26 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 34], 90.00th=[ 49], 95.00th=[ 63], | 99.00th=[ 105], 99.50th=[ 132], 99.90th=[ 192], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 7, max= 224, per=24.95%, avg=70.60, stdev=47.82, samples=166 iops : min= 1, max= 56, avg=17.11, stdev=12.02, samples=166 write: IOPS=18, BW=74.6KiB/s (76.4kB/s)(6296KiB/84428msec); 0 zone resets clat (msec): min=7, max=167, avg=31.87, stdev=22.65 lat (msec): min=7, max=167, avg=31.88, stdev=22.65 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 63], 95.00th=[ 75], | 99.00th=[ 114], 99.50th=[ 130], 99.90th=[ 161], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 16, max= 224, per=24.91%, avg=73.99, stdev=47.61, samples=166 iops : min= 4, max= 56, avg=17.95, stdev=11.97, samples=166 lat (msec) : 10=16.83%, 20=35.09%, 50=34.54%, 100=12.01%, 250=1.50% lat (msec) : 750=0.03% cpu : usr=0.11%, sys=7.17%, ctx=5656, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187095: Thu Jun 18 18:20:30 2026 read: IOPS=17, BW=70.6KiB/s (72.3kB/s)(5940KiB/84114msec) clat (msec): min=4, max=737, avg=22.54, stdev=27.01 lat (msec): min=4, max=737, avg=22.54, stdev=27.01 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 19], | 70.00th=[ 23], 80.00th=[ 33], 90.00th=[ 51], 95.00th=[ 65], | 99.00th=[ 95], 99.50th=[ 112], 99.90th=[ 155], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 7, max= 224, per=25.28%, avg=71.55, stdev=48.31, samples=164 iops : min= 1, max= 56, avg=17.34, stdev=12.13, samples=164 write: IOPS=18, BW=75.5KiB/s (77.3kB/s)(6348KiB/84114msec); 0 zone resets clat (msec): min=7, max=166, avg=31.75, stdev=22.38 lat (msec): min=7, max=166, avg=31.75, stdev=22.39 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 37], 80.00th=[ 48], 90.00th=[ 63], 95.00th=[ 75], | 99.00th=[ 112], 99.50th=[ 136], 99.90th=[ 163], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 7, max= 216, per=25.36%, avg=75.33, stdev=46.99, samples=166 iops : min= 1, max= 54, avg=18.29, stdev=11.82, samples=166 lat (msec) : 10=15.40%, 20=37.76%, 50=32.94%, 100=12.60%, 250=1.27% lat (msec) : 750=0.03% cpu : usr=0.11%, sys=7.10%, ctx=5527, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187096: Thu Jun 18 18:20:30 2026 read: IOPS=17, BW=71.2KiB/s (72.9kB/s)(6028KiB/84632msec) clat (msec): min=3, max=187, avg=22.40, stdev=20.35 lat (msec): min=3, max=187, avg=22.40, stdev=20.35 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 33], 90.00th=[ 51], 95.00th=[ 65], | 99.00th=[ 95], 99.50th=[ 111], 99.90th=[ 174], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 7, max= 231, per=25.14%, avg=71.16, stdev=48.24, samples=167 iops : min= 1, max= 57, avg=17.25, stdev=12.14, samples=167 write: IOPS=18, BW=73.0KiB/s (75.7kB/s)(6260KiB/84632msec); 0 zone resets clat (msec): min=7, max=747, avg=32.35, stdev=29.03 lat (msec): min=7, max=747, avg=32.35, stdev=29.03 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 19], 50.00th=[ 24], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 63], 95.00th=[ 80], | 99.00th=[ 112], 99.50th=[ 133], 99.90th=[ 167], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 7, max= 216, per=24.86%, avg=73.84, stdev=48.06, samples=167 iops : min= 1, max= 54, avg=17.92, stdev=12.08, samples=167 lat (msec) : 4=0.03%, 10=15.89%, 20=36.91%, 50=33.04%, 100=12.79% lat (msec) : 250=1.30%, 750=0.03% cpu : usr=0.10%, sys=7.12%, ctx=5605, 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=187097: Thu Jun 18 18:20:30 2026 read: IOPS=17, BW=71.6KiB/s (73.3kB/s)(6052KiB/84544msec) clat (msec): min=3, max=192, avg=22.69, stdev=20.99 lat (msec): min=3, max=192, avg=22.69, stdev=20.99 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 10], 40.00th=[ 12], 50.00th=[ 15], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 34], 90.00th=[ 51], 95.00th=[ 65], | 99.00th=[ 104], 99.50th=[ 126], 99.90th=[ 190], 99.95th=[ 192], | 99.99th=[ 192] bw ( KiB/s): min= 7, max= 248, per=25.31%, avg=71.63, stdev=48.95, samples=167 iops : min= 1, max= 62, avg=17.37, stdev=12.32, samples=167 write: IOPS=18, BW=73.8KiB/s (75.5kB/s)(6236KiB/84544msec); 0 zone resets clat (msec): min=7, max=743, avg=32.04, stdev=28.77 lat (msec): min=7, max=743, avg=32.05, stdev=28.77 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 17], 40.00th=[ 20], 50.00th=[ 24], 60.00th=[ 30], | 70.00th=[ 38], 80.00th=[ 48], 90.00th=[ 62], 95.00th=[ 77], | 99.00th=[ 111], 99.50th=[ 132], 99.90th=[ 169], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 7, max= 232, per=24.83%, avg=73.74, stdev=47.26, samples=167 iops : min= 1, max= 58, avg=17.89, stdev=11.88, samples=167 lat (msec) : 4=0.03%, 10=15.82%, 20=36.30%, 50=34.05%, 100=12.27% lat (msec) : 250=1.50%, 750=0.03% cpu : usr=0.10%, sys=7.24%, ctx=5571, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=284KiB/s (291kB/s), 70.6KiB/s-71.6KiB/s (72.3kB/s-73.3kB/s), io=23.4MiB (24.6MB), run=84114-84632msec WRITE: bw=297KiB/s (304kB/s), 73.8KiB/s-75.5KiB/s (75.5kB/s-77.3kB/s), io=24.6MiB (25.7MB), run=84114-84632msec 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=187128: Thu Jun 18 18:20:53 2026 read: IOPS=20, BW=332KiB/s (340kB/s)(5920KiB/17814msec) clat (usec): min=60, max=88363, avg=25158.28, stdev=14386.07 lat (usec): min=61, max=88364, avg=25159.43, stdev=14385.97 clat percentiles (usec): | 1.00th=[ 70], 5.00th=[ 120], 10.00th=[11994], 20.00th=[15533], | 30.00th=[17433], 40.00th=[20055], 50.00th=[22938], 60.00th=[26346], | 70.00th=[30016], 80.00th=[34341], 90.00th=[42206], 95.00th=[55313], | 99.00th=[67634], 99.50th=[73925], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 159, max= 512, per=24.84%, avg=331.80, stdev=91.53, samples=35 iops : min= 9, max= 32, avg=20.06, stdev= 5.70, samples=35 write: IOPS=22, BW=357KiB/s (366kB/s)(6368KiB/17814msec); 0 zone resets clat (usec): min=1521, max=77553, avg=20984.88, stdev=16076.49 lat (usec): min=1522, max=77555, avg=20987.37, stdev=16076.20 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 3032], 10.00th=[ 4113], 20.00th=[ 5997], | 30.00th=[ 9503], 40.00th=[13829], 50.00th=[17433], 60.00th=[21103], | 70.00th=[26346], 80.00th=[33424], 90.00th=[45351], 95.00th=[51643], | 99.00th=[71828], 99.50th=[73925], 99.90th=[77071], 99.95th=[77071], | 99.99th=[77071] bw ( KiB/s): min= 190, max= 538, per=25.51%, avg=358.69, stdev=96.33, samples=35 iops : min= 11, max= 33, avg=21.74, stdev= 6.05, samples=35 lat (usec) : 100=1.69%, 250=1.82%, 500=0.13%, 750=0.13% lat (msec) : 2=0.52%, 4=4.17%, 10=11.85%, 20=28.91%, 50=44.27% lat (msec) : 100=6.51% cpu : usr=0.12%, sys=17.42%, ctx=2391, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187129: Thu Jun 18 18:20:53 2026 read: IOPS=20, BW=322KiB/s (330kB/s)(5744KiB/17837msec) clat (usec): min=39, max=103672, avg=26034.55, stdev=14790.86 lat (usec): min=40, max=103673, avg=26036.31, stdev=14789.54 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 131], 10.00th=[ 11863], 20.00th=[ 15008], | 30.00th=[ 17695], 40.00th=[ 20841], 50.00th=[ 23987], 60.00th=[ 27919], | 70.00th=[ 31851], 80.00th=[ 35914], 90.00th=[ 44303], 95.00th=[ 50594], | 99.00th=[ 78119], 99.50th=[ 83362], 99.90th=[103285], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 160, max= 480, per=23.97%, avg=320.26, stdev=88.76, samples=35 iops : min= 10, max= 30, avg=19.34, stdev= 5.56, samples=35 write: IOPS=22, BW=367KiB/s (376kB/s)(6544KiB/17837msec); 0 zone resets clat (usec): min=1844, max=134869, avg=20653.44, stdev=15445.28 lat (usec): min=1846, max=134871, avg=20655.34, stdev=15445.38 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 4], 10.00th=[ 5], 20.00th=[ 7], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 18], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 33], 90.00th=[ 42], 95.00th=[ 50], | 99.00th=[ 62], 99.50th=[ 66], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 160, max= 544, per=25.96%, avg=365.00, stdev=81.52, samples=35 iops : min= 10, max= 34, avg=22.14, stdev= 5.14, samples=35 lat (usec) : 50=0.26%, 100=0.65%, 250=2.08%, 500=0.13% lat (msec) : 2=0.13%, 4=2.73%, 10=13.54%, 20=27.99%, 50=47.53% lat (msec) : 100=4.69%, 250=0.26% cpu : usr=0.09%, sys=17.45%, ctx=2359, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187130: Thu Jun 18 18:20:53 2026 read: IOPS=21, BW=349KiB/s (357kB/s)(6256KiB/17922msec) clat (usec): min=53, max=103825, avg=24565.23, stdev=13565.36 lat (usec): min=53, max=103826, avg=24566.62, stdev=13565.69 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 135], 10.00th=[ 10814], 20.00th=[ 14484], | 30.00th=[ 16712], 40.00th=[ 20055], 50.00th=[ 23200], 60.00th=[ 26870], | 70.00th=[ 30540], 80.00th=[ 34341], 90.00th=[ 40109], 95.00th=[ 46924], | 99.00th=[ 70779], 99.50th=[ 71828], 99.90th=[104334], 99.95th=[104334], | 99.99th=[104334] bw ( KiB/s): min= 190, max= 574, per=26.15%, avg=349.43, stdev=84.32, samples=35 iops : min= 11, max= 35, avg=21.17, stdev= 5.32, samples=35 write: IOPS=21, BW=337KiB/s (345kB/s)(6032KiB/17922msec); 0 zone resets clat (usec): min=1572, max=115945, avg=21763.87, stdev=17685.69 lat (usec): min=1574, max=115947, avg=21766.47, stdev=17685.80 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 3392], 10.00th=[ 4490], 20.00th=[ 6194], | 30.00th=[ 9110], 40.00th=[ 13173], 50.00th=[ 17171], 60.00th=[ 21103], | 70.00th=[ 26346], 80.00th=[ 36963], 90.00th=[ 46924], 95.00th=[ 54789], | 99.00th=[ 80217], 99.50th=[ 85459], 99.90th=[115868], 99.95th=[115868], | 99.99th=[115868] bw ( KiB/s): min= 159, max= 479, per=23.53%, avg=330.86, stdev=88.35, samples=35 iops : min= 9, max= 29, avg=20.00, stdev= 5.42, samples=35 lat (usec) : 100=1.43%, 250=1.95%, 750=0.13% lat (msec) : 2=0.65%, 4=2.99%, 10=12.76%, 20=28.52%, 50=45.57% lat (msec) : 100=5.73%, 250=0.26% cpu : usr=0.11%, sys=17.43%, ctx=2366, 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=187131: Thu Jun 18 18:20:53 2026 read: IOPS=21, BW=337KiB/s (345kB/s)(6032KiB/17899msec) clat (usec): min=52, max=97515, avg=25278.93, stdev=14779.36 lat (usec): min=53, max=97516, avg=25280.07, stdev=14779.41 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 121], 10.00th=[10683], 20.00th=[15795], | 30.00th=[18220], 40.00th=[20579], 50.00th=[23462], 60.00th=[27132], | 70.00th=[30016], 80.00th=[34866], 90.00th=[41157], 95.00th=[50594], | 99.00th=[78119], 99.50th=[81265], 99.90th=[96994], 99.95th=[96994], | 99.99th=[96994] bw ( KiB/s): min= 190, max= 447, per=25.01%, avg=334.14, stdev=74.94, samples=35 iops : min= 11, max= 27, avg=20.20, stdev= 4.73, samples=35 write: IOPS=21, BW=350KiB/s (358kB/s)(6256KiB/17899msec); 0 zone resets clat (usec): min=1832, max=88354, avg=21178.29, stdev=16255.67 lat (usec): min=1833, max=88356, avg=21181.35, stdev=16256.33 clat percentiles (usec): | 1.00th=[ 2540], 5.00th=[ 3785], 10.00th=[ 4621], 20.00th=[ 6259], | 30.00th=[10421], 40.00th=[13173], 50.00th=[16712], 60.00th=[20579], | 70.00th=[25560], 80.00th=[35390], 90.00th=[44827], 95.00th=[52691], | 99.00th=[72877], 99.50th=[78119], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 159, max= 704, per=24.64%, avg=346.43, stdev=106.67, samples=35 iops : min= 9, max= 44, avg=20.97, stdev= 6.71, samples=35 lat (usec) : 100=1.69%, 250=2.08%, 500=0.39% lat (msec) : 2=0.39%, 4=3.12%, 10=11.72%, 20=29.17%, 50=45.96% lat (msec) : 100=5.47% cpu : usr=0.07%, sys=17.43%, ctx=2308, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1336KiB/s (1369kB/s), 322KiB/s-349KiB/s (330kB/s-357kB/s), io=23.4MiB (24.5MB), run=17814-17922msec WRITE: bw=1406KiB/s (1440kB/s), 337KiB/s-367KiB/s (345kB/s-376kB/s), io=24.6MiB (25.8MB), run=17814-17922msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187132: Thu Jun 18 18:20:57 2026 read: IOPS=17, BW=272KiB/s (279kB/s)(5920KiB/21733msec) clat (msec): min=4, max=129, avg=22.98, stdev=19.37 lat (msec): min=4, max=129, avg=22.98, stdev=19.37 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 19], | 70.00th=[ 25], 80.00th=[ 33], 90.00th=[ 52], 95.00th=[ 64], | 99.00th=[ 94], 99.50th=[ 110], 99.90th=[ 130], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 95, max= 800, per=24.68%, avg=271.21, stdev=177.07, samples=43 iops : min= 5, max= 50, avg=16.23, stdev=11.11, samples=43 write: IOPS=18, BW=293KiB/s (300kB/s)(6368KiB/21733msec); 0 zone resets clat (msec): min=7, max=155, avg=32.91, stdev=23.01 lat (msec): min=7, max=155, avg=32.91, stdev=23.01 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 50], 90.00th=[ 66], 95.00th=[ 83], | 99.00th=[ 114], 99.50th=[ 131], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 63, max= 768, per=25.26%, avg=292.02, stdev=169.34, samples=43 iops : min= 3, max= 48, avg=17.53, stdev=10.68, samples=43 lat (msec) : 10=13.28%, 20=36.46%, 50=35.16%, 100=13.80%, 250=1.30% cpu : usr=0.08%, sys=7.86%, ctx=1508, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187133: Thu Jun 18 18:20:57 2026 read: IOPS=16, BW=264KiB/s (270kB/s)(5744KiB/21790msec) clat (msec): min=4, max=152, avg=23.40, stdev=20.29 lat (msec): min=4, max=152, avg=23.40, stdev=20.29 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 34], 90.00th=[ 55], 95.00th=[ 68], | 99.00th=[ 91], 99.50th=[ 108], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 54, max= 736, per=23.70%, avg=260.44, stdev=162.63, samples=43 iops : min= 3, max= 46, avg=15.56, stdev=10.22, samples=43 write: IOPS=18, BW=300KiB/s (308kB/s)(6544KiB/21790msec); 0 zone resets clat (msec): min=7, max=129, avg=32.44, stdev=21.90 lat (msec): min=7, max=129, avg=32.44, stdev=21.90 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 50], 90.00th=[ 62], 95.00th=[ 75], | 99.00th=[ 107], 99.50th=[ 123], 99.90th=[ 130], 99.95th=[ 130], | 99.99th=[ 130] bw ( KiB/s): min= 95, max= 896, per=25.68%, avg=296.86, stdev=181.92, samples=43 iops : min= 5, max= 56, avg=17.84, stdev=11.43, samples=43 lat (msec) : 10=13.41%, 20=35.03%, 50=36.59%, 100=13.54%, 250=1.43% cpu : usr=0.07%, sys=7.80%, ctx=1464, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187134: Thu Jun 18 18:20:57 2026 read: IOPS=18, BW=289KiB/s (296kB/s)(6256KiB/21660msec) clat (msec): min=4, max=154, avg=22.13, stdev=18.46 lat (msec): min=4, max=154, avg=22.13, stdev=18.46 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 9], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 32], 90.00th=[ 47], 95.00th=[ 61], | 99.00th=[ 89], 99.50th=[ 120], 99.90th=[ 155], 99.95th=[ 155], | 99.99th=[ 155] bw ( KiB/s): min= 95, max= 1088, per=25.76%, avg=283.07, stdev=195.27, samples=42 iops : min= 5, max= 68, avg=16.95, stdev=12.22, samples=42 write: IOPS=17, BW=278KiB/s (285kB/s)(6032KiB/21660msec); 0 zone resets clat (msec): min=6, max=132, avg=33.97, stdev=22.12 lat (msec): min=6, max=132, avg=33.97, stdev=22.12 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 18], 40.00th=[ 22], 50.00th=[ 27], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 52], 90.00th=[ 68], 95.00th=[ 80], | 99.00th=[ 111], 99.50th=[ 133], 99.90th=[ 133], 99.95th=[ 133], | 99.99th=[ 133] bw ( KiB/s): min= 95, max= 766, per=22.90%, avg=264.74, stdev=142.22, samples=42 iops : min= 5, max= 47, avg=15.81, stdev= 8.89, samples=42 lat (msec) : 10=14.06%, 20=35.16%, 50=35.94%, 100=13.93%, 250=0.91% cpu : usr=0.09%, sys=7.87%, ctx=1451, 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=187135: Thu Jun 18 18:20:57 2026 read: IOPS=17, BW=278KiB/s (285kB/s)(6032KiB/21707msec) clat (msec): min=4, max=109, avg=22.36, stdev=17.75 lat (msec): min=4, max=109, avg=22.36, stdev=17.75 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 11], 40.00th=[ 14], 50.00th=[ 16], 60.00th=[ 21], | 70.00th=[ 25], 80.00th=[ 33], 90.00th=[ 51], 95.00th=[ 61], | 99.00th=[ 84], 99.50th=[ 93], 99.90th=[ 110], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 63, max= 832, per=25.09%, avg=275.77, stdev=177.46, samples=43 iops : min= 3, max= 52, avg=16.51, stdev=11.17, samples=43 write: IOPS=18, BW=288KiB/s (295kB/s)(6256KiB/21707msec); 0 zone resets clat (msec): min=8, max=157, avg=33.75, stdev=22.68 lat (msec): min=8, max=157, avg=33.76, stdev=22.68 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 23], 50.00th=[ 27], 60.00th=[ 33], | 70.00th=[ 40], 80.00th=[ 50], 90.00th=[ 64], 95.00th=[ 80], | 99.00th=[ 107], 99.50th=[ 134], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 95, max= 768, per=24.99%, avg=288.86, stdev=166.40, samples=43 iops : min= 5, max= 48, avg=17.33, stdev=10.48, samples=43 lat (msec) : 10=13.67%, 20=33.85%, 50=37.37%, 100=13.93%, 250=1.17% cpu : usr=0.09%, sys=7.74%, ctx=1483, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1099KiB/s (1126kB/s), 264KiB/s-289KiB/s (270kB/s-296kB/s), io=23.4MiB (24.5MB), run=21660-21790msec WRITE: bw=1156KiB/s (1184kB/s), 278KiB/s-300KiB/s (285kB/s-308kB/s), io=24.6MiB (25.8MB), run=21660-21790msec 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=187150: Thu Jun 18 18:21:07 2026 read: IOPS=1, BW=2044KiB/s (2094kB/s)(7168KiB/3506msec) clat (msec): min=90, max=1747, avg=361.48, stdev=611.74 lat (msec): min=90, max=1747, avg=361.48, stdev=611.74 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 91], 10.00th=[ 91], 20.00th=[ 115], | 30.00th=[ 125], 40.00th=[ 125], 50.00th=[ 129], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 176], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 1961, max= 4047, per=61.62%, avg=2960.25, stdev=1109.34, samples=4 iops : min= 1, max= 3, avg= 2.25, stdev= 0.96, samples=4 write: IOPS=1, BW=1460KiB/s (1495kB/s)(5120KiB/3506msec); 0 zone resets clat (msec): min=95, max=311, avg=185.48, stdev=94.32 lat (msec): min=95, max=311, avg=185.55, stdev=94.31 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 95], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 144], 60.00th=[ 144], | 70.00th=[ 259], 80.00th=[ 259], 90.00th=[ 313], 95.00th=[ 313], | 99.00th=[ 313], 99.50th=[ 313], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 2023, max= 5885, per=58.80%, avg=3954.00, stdev=2730.85, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 lat (msec) : 100=16.67%, 250=58.33%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=35.32%, ctx=680, 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=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=187151: Thu Jun 18 18:21:07 2026 read: IOPS=0, BW=480KiB/s (492kB/s)(2048KiB/4263msec) clat (usec): min=523, max=88398, avg=44460.97, stdev=62137.21 lat (usec): min=524, max=88401, avg=44462.73, stdev=62138.32 clat percentiles (usec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[88605], | 70.00th=[88605], 80.00th=[88605], 90.00th=[88605], 95.00th=[88605], | 99.00th=[88605], 99.50th=[88605], 99.90th=[88605], 99.95th=[88605], | 99.99th=[88605] bw ( KiB/s): min= 1885, max= 2023, per=40.67%, avg=1954.00, stdev=97.58, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2402KiB/s (2460kB/s)(10.0MiB/4263msec); 0 zone resets clat (msec): min=87, max=2142, avg=415.41, stdev=623.85 lat (msec): min=87, max=2142, avg=415.49, stdev=623.85 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 95], | 30.00th=[ 124], 40.00th=[ 128], 50.00th=[ 129], 60.00th=[ 213], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 518], 95.00th=[ 2140], | 99.00th=[ 2140], 99.50th=[ 2140], 99.90th=[ 2140], 99.95th=[ 2140], | 99.99th=[ 2140] bw ( KiB/s): min= 4047, max= 8192, per=90.70%, avg=6099.33, stdev=2072.79, samples=3 iops : min= 3, max= 8, avg= 5.33, stdev= 2.52, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=25.00%, 250=33.33%, 500=16.67%, 750=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=23.72%, ctx=254, 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=187152: Thu Jun 18 18:21:07 2026 read: IOPS=1, BW=1544KiB/s (1582kB/s)(6144KiB/3978msec) clat (usec): min=578, max=211713, avg=88451.42, stdev=98358.91 lat (usec): min=579, max=211714, avg=88452.58, stdev=98358.91 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 594], | 30.00th=[ 594], 40.00th=[ 635], 50.00th=[ 635], 60.00th=[149947], | 70.00th=[168821], 80.00th=[168821], 90.00th=[210764], 95.00th=[210764], | 99.00th=[210764], 99.50th=[210764], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 3923, max= 4047, per=82.95%, avg=3985.00, stdev=87.68, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1544KiB/s (1582kB/s)(6144KiB/3978msec); 0 zone resets clat (msec): min=112, max=2130, avg=566.26, stdev=777.76 lat (msec): min=112, max=2130, avg=566.43, stdev=777.76 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 113], 10.00th=[ 113], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 224], 50.00th=[ 224], 60.00th=[ 279], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 2123], 95.00th=[ 2123], | 99.00th=[ 2123], 99.50th=[ 2123], 99.90th=[ 2123], 99.95th=[ 2123], | 99.99th=[ 2123] bw ( KiB/s): min= 1885, max= 2048, per=29.43%, avg=1979.25, stdev=72.70, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (usec) : 750=25.00% lat (msec) : 250=50.00%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=23.08%, ctx=524, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187153: Thu Jun 18 18:21:07 2026 read: IOPS=1, BW=1457KiB/s (1492kB/s)(5120KiB/3514msec) clat (usec): min=468, max=158878, avg=105664.10, stdev=62178.53 lat (usec): min=476, max=158879, avg=105666.79, stdev=62175.71 clat percentiles (usec): | 1.00th=[ 469], 5.00th=[ 469], 10.00th=[ 469], 20.00th=[ 469], | 30.00th=[102237], 40.00th=[102237], 50.00th=[131597], 60.00th=[131597], | 70.00th=[135267], 80.00th=[135267], 90.00th=[158335], 95.00th=[158335], | 99.00th=[158335], 99.50th=[158335], 99.90th=[158335], 99.95th=[158335], | 99.99th=[158335] bw ( KiB/s): min= 2023, max= 5885, per=82.31%, avg=3954.00, stdev=2730.85, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=2040KiB/s (2089kB/s)(7168KiB/3514msec); 0 zone resets clat (msec): min=79, max=1763, avg=421.29, stdev=599.47 lat (msec): min=79, max=1763, avg=421.39, stdev=599.48 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 129], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 355], 90.00th=[ 1770], 95.00th=[ 1770], | 99.00th=[ 1770], 99.50th=[ 1770], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 1932, max= 6071, per=49.39%, avg=3321.33, stdev=2381.33, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 lat (usec) : 500=8.33% lat (msec) : 100=8.33%, 250=58.33%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=29.08%, ctx=323, 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=4804KiB/s (4919kB/s), 480KiB/s-2044KiB/s (492kB/s-2094kB/s), io=20.0MiB (20.0MB), run=3506-4263msec WRITE: bw=6726KiB/s (6887kB/s), 1460KiB/s-2402KiB/s (1495kB/s-2460kB/s), io=28.0MiB (29.4MB), run=3506-4263msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187155: Thu Jun 18 18:21:08 2026 read: IOPS=1, BW=1669KiB/s (1709kB/s)(7168KiB/4294msec) clat (msec): min=47, max=2102, avg=470.62, stdev=733.38 lat (msec): min=47, max=2102, avg=470.62, stdev=733.38 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 48], 10.00th=[ 48], 20.00th=[ 57], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 176], 60.00th=[ 300], | 70.00th=[ 300], 80.00th=[ 456], 90.00th=[ 2106], 95.00th=[ 2106], | 99.00th=[ 2106], 99.50th=[ 2106], 99.90th=[ 2106], 99.95th=[ 2106], | 99.99th=[ 2106] bw ( KiB/s): min= 1374, max= 4063, per=62.72%, avg=2872.75, stdev=1381.61, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1192KiB/s (1221kB/s)(5120KiB/4294msec); 0 zone resets clat (msec): min=55, max=550, avg=185.39, stdev=210.20 lat (msec): min=55, max=550, avg=185.48, stdev=210.20 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 56], 10.00th=[ 56], 20.00th=[ 56], | 30.00th=[ 56], 40.00th=[ 56], 50.00th=[ 89], 60.00th=[ 89], | 70.00th=[ 178], 80.00th=[ 178], 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= 1969, max= 8126, per=78.72%, avg=5047.50, stdev=4353.66, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 lat (msec) : 50=8.33%, 100=33.33%, 250=25.00%, 500=16.67%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.05%, sys=9.08%, ctx=106, 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=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=187156: Thu Jun 18 18:21:08 2026 read: IOPS=0, BW=466KiB/s (477kB/s)(2048KiB/4397msec) clat (msec): min=260, max=267, avg=264.09, stdev= 5.10 lat (msec): min=260, max=267, avg=264.09, stdev= 5.10 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 262], 40.00th=[ 262], 50.00th=[ 262], 60.00th=[ 268], | 70.00th=[ 268], 80.00th=[ 268], 90.00th=[ 268], 95.00th=[ 268], | 99.00th=[ 268], 99.50th=[ 268], 99.90th=[ 268], 99.95th=[ 268], | 99.99th=[ 268] bw ( KiB/s): min= 1928, max= 1946, per=42.29%, avg=1937.00, stdev=12.73, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2329KiB/s (2385kB/s)(10.0MiB/4397msec); 0 zone resets clat (msec): min=96, max=2206, avg=376.45, stdev=646.03 lat (msec): min=96, max=2206, avg=376.56, stdev=646.03 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 96], 10.00th=[ 96], 20.00th=[ 100], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 239], 90.00th=[ 305], 95.00th=[ 2198], | 99.00th=[ 2198], 99.50th=[ 2198], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 1946, max= 8175, per=73.82%, avg=4733.33, stdev=3165.63, samples=3 iops : min= 1, max= 7, avg= 3.67, stdev= 3.06, samples=3 lat (msec) : 100=16.67%, 250=50.00%, 500=25.00%, >=2000=8.33% cpu : usr=0.02%, sys=10.49%, ctx=178, 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=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=187157: Thu Jun 18 18:21:08 2026 read: IOPS=1, BW=1409KiB/s (1443kB/s)(6144KiB/4361msec) clat (msec): min=51, max=293, avg=130.05, stdev=89.98 lat (msec): min=51, max=293, avg=130.05, stdev=89.98 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 52], 10.00th=[ 52], 20.00th=[ 69], | 30.00th=[ 69], 40.00th=[ 84], 50.00th=[ 84], 60.00th=[ 116], | 70.00th=[ 169], 80.00th=[ 169], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 1946, max= 4079, per=65.78%, avg=3012.50, stdev=1508.26, samples=2 iops : min= 1, max= 3, avg= 2.00, stdev= 1.41, samples=2 write: IOPS=1, BW=1409KiB/s (1443kB/s)(6144KiB/4361msec); 0 zone resets clat (msec): min=57, max=2729, avg=594.25, stdev=1051.86 lat (msec): min=57, max=2729, avg=594.34, stdev=1051.86 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 58], 10.00th=[ 58], 20.00th=[ 94], | 30.00th=[ 94], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 178], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 2735], 95.00th=[ 2735], | 99.00th=[ 2735], 99.50th=[ 2735], 99.90th=[ 2735], 99.95th=[ 2735], | 99.99th=[ 2735] bw ( KiB/s): min= 1946, max= 2043, per=31.39%, avg=2012.75, stdev=45.33, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=41.67%, 250=33.33%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=8.74%, ctx=235, 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=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=187158: Thu Jun 18 18:21:08 2026 read: IOPS=1, BW=1145KiB/s (1173kB/s)(5120KiB/4471msec) clat (msec): min=25, max=195, avg=94.00, stdev=76.67 lat (msec): min=25, max=195, avg=94.01, stdev=76.67 clat percentiles (msec): | 1.00th=[ 26], 5.00th=[ 26], 10.00th=[ 26], 20.00th=[ 26], | 30.00th=[ 45], 40.00th=[ 45], 50.00th=[ 48], 60.00th=[ 48], | 70.00th=[ 157], 80.00th=[ 157], 90.00th=[ 197], 95.00th=[ 197], | 99.00th=[ 197], 99.50th=[ 197], 99.90th=[ 197], 99.95th=[ 197], | 99.99th=[ 197] bw ( KiB/s): min= 6095, max= 6095, per=100.00%, avg=6095.00, stdev= 0.00, samples=1 iops : min= 5, max= 5, avg= 5.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1603KiB/s (1642kB/s)(7168KiB/4471msec); 0 zone resets clat (msec): min=32, max=2825, avg=561.44, stdev=1012.65 lat (msec): min=32, max=2825, avg=561.52, stdev=1012.65 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 33], 10.00th=[ 33], 20.00th=[ 37], | 30.00th=[ 59], 40.00th=[ 59], 50.00th=[ 165], 60.00th=[ 326], | 70.00th=[ 326], 80.00th=[ 489], 90.00th=[ 2836], 95.00th=[ 2836], | 99.00th=[ 2836], 99.50th=[ 2836], 99.90th=[ 2836], 99.95th=[ 2836], | 99.99th=[ 2836] bw ( KiB/s): min= 1367, max= 4047, per=38.70%, avg=2481.67, stdev=1395.68, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 50=41.67%, 100=8.33%, 250=25.00%, 500=16.67%, >=2000=8.33% cpu : usr=0.00%, sys=8.86%, ctx=119, 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=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=4581KiB/s (4691kB/s), 466KiB/s-1669KiB/s (477kB/s-1709kB/s), io=20.0MiB (20.0MB), run=4294-4471msec WRITE: bw=6413KiB/s (6567kB/s), 1192KiB/s-2329KiB/s (1221kB/s-2385kB/s), io=28.0MiB (29.4MB), run=4294-4471msec 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=187165: Thu Jun 18 18:21:16 2026 read: IOPS=2, BW=8382KiB/s (8583kB/s)(12.0MiB/1466msec) clat (msec): min=364, max=593, avg=472.90, stdev=114.69 lat (msec): min=364, max=593, avg=472.90, stdev=114.68 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 460], 50.00th=[ 460], 60.00th=[ 460], | 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= 5550, max= 8078, per=85.56%, avg=6814.00, stdev=1787.57, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 750=33.33% cpu : usr=0.00%, sys=46.14%, ctx=1762, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187166: Thu Jun 18 18:21:16 2026 read: IOPS=0, BW=1991KiB/s (2039kB/s)(4096KiB/2057msec) clat (nsec): min=403899k, max=403899k, avg=403898885.00, stdev= 0.00 lat (nsec): min=403901k, max=403901k, avg=403901165.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 405], 10.00th=[ 405], 20.00th=[ 405], | 30.00th=[ 405], 40.00th=[ 405], 50.00th=[ 405], 60.00th=[ 405], | 70.00th=[ 405], 80.00th=[ 405], 90.00th=[ 405], 95.00th=[ 405], | 99.00th=[ 405], 99.50th=[ 405], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 7892, max= 7892, per=99.10%, avg=7892.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3982KiB/s (4078kB/s)(8192KiB/2057msec); 0 zone resets clat (msec): min=711, max=900, avg=806.22, stdev=134.02 lat (msec): min=712, max=901, avg=807.04, stdev=133.45 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 709], 50.00th=[ 709], 60.00th=[ 902], | 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= 8192, max= 8192, per=55.55%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=14.49%, ctx=563, 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=187167: Thu Jun 18 18:21:16 2026 write: IOPS=1, BW=5530KiB/s (5663kB/s)(12.0MiB/2222msec); 0 zone resets clat (msec): min=374, max=1320, avg=721.44, stdev=521.08 lat (msec): min=375, max=1321, avg=721.83, stdev=521.04 clat percentiles (msec): | 1.00th=[ 376], 5.00th=[ 376], 10.00th=[ 376], 20.00th=[ 376], | 30.00th=[ 376], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 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= 8078, max= 8192, per=55.16%, avg=8135.00, stdev=80.61, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=66.67%, 2000=33.33% cpu : usr=0.00%, sys=16.88%, ctx=144, 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=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=187168: Thu Jun 18 18:21:16 2026 write: IOPS=1, BW=7656KiB/s (7840kB/s)(12.0MiB/1605msec); 0 zone resets clat (msec): min=303, max=797, avg=526.44, stdev=250.11 lat (msec): min=304, max=797, avg=526.99, stdev=250.00 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 802], 80.00th=[ 802], 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= 5542, max= 8078, per=46.18%, avg=6810.00, stdev=1793.22, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=66.67%, 1000=33.33% cpu : usr=0.12%, sys=17.27%, ctx=43, 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=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=7965KiB/s (8156kB/s), 1991KiB/s-8382KiB/s (2039kB/s-8583kB/s), io=16.0MiB (16.8MB), run=1466-2057msec WRITE: bw=14.4MiB/s (15.1MB/s), 3982KiB/s-7656KiB/s (4078kB/s-7840kB/s), io=32.0MiB (33.6MB), run=1605-2222msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187169: Thu Jun 18 18:21:16 2026 read: IOPS=1, BW=6344KiB/s (6496kB/s)(12.0MiB/1937msec) clat (msec): min=214, max=894, avg=632.57, stdev=365.51 lat (msec): min=214, max=894, avg=632.58, stdev=365.51 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 215], | 30.00th=[ 215], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 894], 80.00th=[ 894], 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= 8143, max= 8192, per=100.00%, avg=8167.50, stdev=34.65, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.00%, sys=12.71%, ctx=67, 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=187170: Thu Jun 18 18:21:16 2026 read: IOPS=0, BW=1753KiB/s (1796kB/s)(4096KiB/2336msec) clat (nsec): min=676735k, max=676735k, avg=676735362.00, stdev= 0.00 lat (nsec): min=676738k, max=676738k, avg=676737506.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 676], 5.00th=[ 676], 10.00th=[ 676], 20.00th=[ 676], | 30.00th=[ 676], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 676], 80.00th=[ 676], 90.00th=[ 676], 95.00th=[ 676], | 99.00th=[ 676], 99.50th=[ 676], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 5657, max= 5657, per=80.66%, avg=5657.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3507KiB/s (3591kB/s)(8192KiB/2336msec); 0 zone resets clat (msec): min=754, max=891, avg=822.94, stdev=97.00 lat (msec): min=754, max=892, avg=823.51, stdev=96.93 clat percentiles (msec): | 1.00th=[ 751], 5.00th=[ 751], 10.00th=[ 751], 20.00th=[ 751], | 30.00th=[ 751], 40.00th=[ 751], 50.00th=[ 751], 60.00th=[ 894], | 70.00th=[ 894], 80.00th=[ 894], 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= 8192, max= 8192, per=58.40%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.00%, sys=12.33%, ctx=51, 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=187171: Thu Jun 18 18:21:16 2026 write: IOPS=1, BW=5292KiB/s (5419kB/s)(12.0MiB/2322msec); 0 zone resets clat (msec): min=167, max=1176, avg=744.58, stdev=519.98 lat (msec): min=167, max=1176, avg=745.13, stdev=520.04 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1183], 80.00th=[ 1183], 90.00th=[ 1183], 95.00th=[ 1183], | 99.00th=[ 1183], 99.50th=[ 1183], 99.90th=[ 1183], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7968, max= 8192, per=57.60%, avg=8080.00, stdev=158.39, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=12.62%, ctx=68, 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=187172: Thu Jun 18 18:21:16 2026 write: IOPS=1, BW=7220KiB/s (7393kB/s)(12.0MiB/1702msec); 0 zone resets clat (msec): min=151, max=832, avg=561.56, stdev=361.12 lat (msec): min=151, max=833, avg=562.04, stdev=361.26 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 153], 10.00th=[ 153], 20.00th=[ 153], | 30.00th=[ 153], 40.00th=[ 701], 50.00th=[ 701], 60.00th=[ 701], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 8143, max= 8143, per=58.05%, avg=8143.00, 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%, 1000=33.33% cpu : usr=0.00%, sys=16.81%, 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=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=7014KiB/s (7182kB/s), 1753KiB/s-6344KiB/s (1796kB/s-6496kB/s), io=16.0MiB (16.8MB), run=1937-2336msec WRITE: bw=13.7MiB/s (14.4MB/s), 3507KiB/s-7220KiB/s (3591kB/s-7393kB/s), io=32.0MiB (33.6MB), run=1702-2336msec