== sanity test 398b: DIO and buffer IO race ============== 10:10:56 (1790777456) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.20619 s, 8.1 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=180997: Wed Sep 30 10:13:26 2026 read: IOPS=11, BW=45.6KiB/s (46.7kB/s)(5992KiB/131500msec) clat (usec): min=44, max=884554, avg=48719.64, stdev=38114.19 lat (usec): min=45, max=884556, avg=48721.53, stdev=38114.04 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 11994], 10.00th=[ 17171], 20.00th=[ 23987], | 30.00th=[ 29754], 40.00th=[ 35390], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 68682], 90.00th=[ 87557], 95.00th=[109577], | 99.00th=[162530], 99.50th=[175113], 99.90th=[238027], 99.95th=[884999], | 99.99th=[884999] bw ( KiB/s): min= 7, max= 104, per=24.78%, avg=45.10, stdev=17.89, samples=258 iops : min= 1, max= 26, avg=10.62, stdev= 4.51, samples=258 write: IOPS=11, BW=47.9KiB/s (49.0kB/s)(6296KiB/131500msec); 0 zone resets clat (usec): min=838, max=298186, avg=37078.35, stdev=37410.76 lat (usec): min=839, max=298188, avg=37081.39, stdev=37411.08 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1434], 10.00th=[ 2343], 20.00th=[ 4817], | 30.00th=[ 9241], 40.00th=[ 19006], 50.00th=[ 27395], 60.00th=[ 36439], | 70.00th=[ 46400], 80.00th=[ 63177], 90.00th=[ 87557], 95.00th=[110625], | 99.00th=[164627], 99.50th=[193987], 99.90th=[219153], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 127, per=25.06%, avg=47.87, stdev=20.89, samples=256 iops : min= 1, max= 31, avg=11.32, stdev= 5.27, samples=256 lat (usec) : 50=0.16%, 100=1.43%, 250=0.20%, 1000=0.03% lat (msec) : 2=4.36%, 4=4.49%, 10=7.42%, 20=9.80%, 50=39.32% lat (msec) : 100=25.85%, 250=6.87%, 500=0.03%, 1000=0.03% cpu : usr=0.08%, sys=4.75%, ctx=6891, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180998: Wed Sep 30 10:13:26 2026 read: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5940KiB/129738msec) clat (usec): min=36, max=793062, avg=47278.37, stdev=35805.30 lat (usec): min=36, max=793063, avg=47281.44, stdev=35806.04 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 14484], 10.00th=[ 18482], 20.00th=[ 23987], | 30.00th=[ 28705], 40.00th=[ 34341], 50.00th=[ 40633], 60.00th=[ 47449], | 70.00th=[ 55313], 80.00th=[ 64226], 90.00th=[ 82314], 95.00th=[101188], | 99.00th=[147850], 99.50th=[183501], 99.90th=[299893], 99.95th=[792724], | 99.99th=[792724] bw ( KiB/s): min= 7, max= 103, per=25.02%, avg=45.54, stdev=18.39, samples=254 iops : min= 1, max= 25, avg=10.74, stdev= 4.63, samples=254 write: IOPS=12, BW=48.9KiB/s (50.1kB/s)(6348KiB/129738msec); 0 zone resets clat (usec): min=1045, max=408955, avg=37336.09, stdev=39008.29 lat (usec): min=1046, max=408958, avg=37341.15, stdev=39007.67 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1434], 10.00th=[ 2057], 20.00th=[ 4178], | 30.00th=[ 8291], 40.00th=[ 17171], 50.00th=[ 26608], 60.00th=[ 36439], | 70.00th=[ 47973], 80.00th=[ 65799], 90.00th=[ 89654], 95.00th=[111674], | 99.00th=[158335], 99.50th=[204473], 99.90th=[291505], 99.95th=[408945], | 99.99th=[408945] bw ( KiB/s): min= 7, max= 133, per=25.55%, avg=48.79, stdev=20.75, samples=253 iops : min= 1, max= 33, avg=11.55, stdev= 5.22, samples=253 lat (usec) : 50=0.13%, 100=1.11%, 250=0.07%, 750=0.07% lat (msec) : 2=5.05%, 4=4.92%, 10=7.19%, 20=9.64%, 50=39.10% lat (msec) : 100=26.37%, 250=6.22%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=4.90%, ctx=6794, 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=180999: Wed Sep 30 10:13:26 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6028KiB/129209msec) clat (usec): min=39, max=288683, avg=47819.67, stdev=31904.84 lat (usec): min=39, max=288685, avg=47822.37, stdev=31905.20 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 13435], 10.00th=[ 17957], 20.00th=[ 23987], | 30.00th=[ 28967], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 47973], | 70.00th=[ 55837], 80.00th=[ 67634], 90.00th=[ 86508], 95.00th=[103285], | 99.00th=[164627], 99.50th=[204473], 99.90th=[256902], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 7, max= 111, per=25.45%, avg=46.33, stdev=18.76, samples=254 iops : min= 1, max= 27, avg=10.93, stdev= 4.73, samples=254 write: IOPS=12, BW=48.4KiB/s (49.6kB/s)(6260KiB/129209msec); 0 zone resets clat (usec): min=880, max=798887, avg=36386.44, stdev=42077.21 lat (usec): min=881, max=798890, avg=36389.11, stdev=42077.20 clat percentiles (usec): | 1.00th=[ 1156], 5.00th=[ 1369], 10.00th=[ 2147], 20.00th=[ 4359], | 30.00th=[ 8225], 40.00th=[ 16450], 50.00th=[ 26346], 60.00th=[ 33817], | 70.00th=[ 44827], 80.00th=[ 61604], 90.00th=[ 84411], 95.00th=[111674], | 99.00th=[160433], 99.50th=[204473], 99.90th=[283116], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 112, per=25.19%, avg=48.11, stdev=20.31, samples=254 iops : min= 1, max= 28, avg=11.37, stdev= 5.12, samples=254 lat (usec) : 50=0.13%, 100=1.04%, 250=0.23%, 500=0.03%, 1000=0.13% lat (msec) : 2=4.72%, 4=4.82%, 10=7.29%, 20=10.06%, 50=39.94% lat (msec) : 100=25.46%, 250=5.96%, 500=0.16%, 1000=0.03% cpu : usr=0.07%, sys=4.83%, ctx=6744, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181000: Wed Sep 30 10:13:26 2026 read: IOPS=11, BW=46.1KiB/s (47.2kB/s)(6052KiB/131376msec) clat (usec): min=46, max=291117, avg=48444.95, stdev=32523.83 lat (usec): min=47, max=291118, avg=48453.83, stdev=32527.99 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 12256], 10.00th=[ 17695], 20.00th=[ 23987], | 30.00th=[ 29230], 40.00th=[ 34866], 50.00th=[ 41681], 60.00th=[ 47449], | 70.00th=[ 56886], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[107480], | 99.00th=[168821], 99.50th=[181404], 99.90th=[274727], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 7, max= 95, per=25.23%, avg=45.91, stdev=17.79, samples=257 iops : min= 1, max= 23, avg=10.82, stdev= 4.49, samples=257 write: IOPS=11, BW=47.5KiB/s (48.6kB/s)(6236KiB/131376msec); 0 zone resets clat (usec): min=930, max=772091, avg=37128.77, stdev=41298.94 lat (usec): min=931, max=772094, avg=37133.46, stdev=41300.35 clat percentiles (usec): | 1.00th=[ 1172], 5.00th=[ 1385], 10.00th=[ 2089], 20.00th=[ 4293], | 30.00th=[ 7701], 40.00th=[ 17695], 50.00th=[ 27132], 60.00th=[ 36963], | 70.00th=[ 48497], 80.00th=[ 64226], 90.00th=[ 84411], 95.00th=[107480], | 99.00th=[158335], 99.50th=[185598], 99.90th=[278922], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 119, per=24.96%, avg=47.67, stdev=20.96, samples=255 iops : min= 1, max= 29, avg=11.27, stdev= 5.28, samples=255 lat (usec) : 50=0.13%, 100=1.11%, 250=0.26%, 500=0.07%, 1000=0.07% lat (msec) : 2=4.82%, 4=4.79%, 10=7.45%, 20=9.15%, 50=39.00% lat (msec) : 100=26.50%, 250=6.51%, 500=0.13%, 1000=0.03% cpu : usr=0.08%, sys=4.72%, ctx=6870, 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=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=183KiB/s (187kB/s), 45.6KiB/s-46.7KiB/s (46.7kB/s-47.8kB/s), io=23.4MiB (24.6MB), run=129209-131500msec WRITE: bw=191KiB/s (196kB/s), 47.5KiB/s-48.9KiB/s (48.6kB/s-50.1kB/s), io=24.6MiB (25.7MB), run=129209-131500msec rand-rw: (groupid=0, jobs=1): err= 0: pid=180992: Wed Sep 30 10:14:04 2026 read: IOPS=8, BW=35.4KiB/s (36.3kB/s)(5992KiB/169105msec) clat (msec): min=5, max=979, avg=43.87, stdev=48.22 lat (msec): min=5, max=979, avg=43.88, stdev=48.22 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 28], 60.00th=[ 34], | 70.00th=[ 44], 80.00th=[ 62], 90.00th=[ 102], 95.00th=[ 136], | 99.00th=[ 220], 99.50th=[ 239], 99.90th=[ 342], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 7, max= 135, per=25.52%, avg=35.98, stdev=26.10, samples=323 iops : min= 1, max= 33, avg= 8.30, stdev= 6.55, samples=323 write: IOPS=9, BW=37.2KiB/s (38.1kB/s)(6296KiB/169105msec); 0 zone resets clat (msec): min=11, max=448, avg=65.40, stdev=49.73 lat (msec): min=11, max=448, avg=65.41, stdev=49.73 clat percentiles (msec): | 1.00th=[ 16], 5.00th=[ 21], 10.00th=[ 25], 20.00th=[ 30], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 59], | 70.00th=[ 74], 80.00th=[ 96], 90.00th=[ 128], 95.00th=[ 165], | 99.00th=[ 245], 99.50th=[ 292], 99.90th=[ 397], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 7, max= 118, per=25.22%, avg=37.32, stdev=23.41, samples=327 iops : min= 1, max= 29, avg= 8.64, stdev= 5.86, samples=327 lat (msec) : 10=2.21%, 20=15.01%, 50=45.61%, 100=22.95%, 250=13.54% lat (msec) : 500=0.65%, 1000=0.03% cpu : usr=0.06%, sys=1.77%, ctx=4754, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180993: Wed Sep 30 10:14:04 2026 read: IOPS=8, BW=35.0KiB/s (35.9kB/s)(5940KiB/169597msec) clat (msec): min=5, max=897, avg=44.46, stdev=45.56 lat (msec): min=5, max=897, avg=44.46, stdev=45.56 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 68], 90.00th=[ 102], 95.00th=[ 129], | 99.00th=[ 190], 99.50th=[ 207], 99.90th=[ 334], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 127, per=25.30%, avg=35.67, stdev=25.20, samples=323 iops : min= 1, max= 31, avg= 8.23, stdev= 6.31, samples=323 write: IOPS=9, BW=37.4KiB/s (38.3kB/s)(6348KiB/169597msec); 0 zone resets clat (msec): min=11, max=441, avg=65.00, stdev=48.96 lat (msec): min=11, max=441, avg=65.00, stdev=48.95 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 21], 10.00th=[ 24], 20.00th=[ 29], | 30.00th=[ 34], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 77], 80.00th=[ 96], 90.00th=[ 130], 95.00th=[ 163], | 99.00th=[ 247], 99.50th=[ 292], 99.90th=[ 380], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 7, max= 151, per=25.08%, avg=37.12, stdev=24.72, samples=331 iops : min= 1, max= 37, avg= 8.59, stdev= 6.20, samples=331 lat (msec) : 10=1.95%, 20=15.23%, 50=44.56%, 100=23.99%, 250=13.70% lat (msec) : 500=0.52%, 1000=0.03% cpu : usr=0.07%, sys=1.79%, ctx=4923, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180994: Wed Sep 30 10:14:04 2026 read: IOPS=8, BW=35.9KiB/s (36.7kB/s)(6028KiB/168130msec) clat (msec): min=4, max=342, avg=44.42, stdev=40.53 lat (msec): min=4, max=342, avg=44.42, stdev=40.53 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 35], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 104], 95.00th=[ 130], | 99.00th=[ 190], 99.50th=[ 224], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 7, max= 127, per=25.50%, avg=35.96, stdev=24.80, samples=325 iops : min= 1, max= 31, avg= 8.30, stdev= 6.22, samples=325 write: IOPS=9, BW=37.2KiB/s (38.1kB/s)(6260KiB/168130msec); 0 zone resets clat (msec): min=12, max=930, avg=64.38, stdev=51.52 lat (msec): min=12, max=930, avg=64.40, stdev=51.53 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 40], 50.00th=[ 49], 60.00th=[ 60], | 70.00th=[ 75], 80.00th=[ 92], 90.00th=[ 125], 95.00th=[ 159], | 99.00th=[ 228], 99.50th=[ 334], 99.90th=[ 393], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7, max= 119, per=25.17%, avg=37.25, stdev=24.08, samples=326 iops : min= 1, max= 29, avg= 8.62, stdev= 6.03, samples=326 lat (msec) : 10=1.73%, 20=14.36%, 50=45.44%, 100=24.77%, 250=13.18% lat (msec) : 500=0.49%, 1000=0.03% cpu : usr=0.06%, sys=1.76%, ctx=4803, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=180995: Wed Sep 30 10:14:04 2026 read: IOPS=8, BW=35.7KiB/s (36.5kB/s)(6052KiB/169607msec) clat (msec): min=6, max=317, avg=44.81, stdev=40.24 lat (msec): min=6, max=317, avg=44.81, stdev=40.24 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 50], 80.00th=[ 69], 90.00th=[ 104], 95.00th=[ 131], | 99.00th=[ 190], 99.50th=[ 215], 99.90th=[ 292], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 7, max= 134, per=25.63%, avg=36.14, stdev=25.56, samples=325 iops : min= 1, max= 33, avg= 8.34, stdev= 6.40, samples=325 write: IOPS=9, BW=36.8KiB/s (37.6kB/s)(6236KiB/169607msec); 0 zone resets clat (msec): min=12, max=912, avg=65.05, stdev=50.90 lat (msec): min=12, max=912, avg=65.05, stdev=50.90 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 22], 10.00th=[ 25], 20.00th=[ 29], | 30.00th=[ 35], 40.00th=[ 41], 50.00th=[ 48], 60.00th=[ 60], | 70.00th=[ 79], 80.00th=[ 99], 90.00th=[ 127], 95.00th=[ 155], | 99.00th=[ 234], 99.50th=[ 275], 99.90th=[ 334], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 7, max= 111, per=24.72%, avg=36.59, stdev=23.91, samples=330 iops : min= 1, max= 27, avg= 8.45, stdev= 5.99, samples=330 lat (msec) : 10=1.95%, 20=14.49%, 50=45.15%, 100=23.57%, 250=14.36% lat (msec) : 500=0.46%, 1000=0.03% cpu : usr=0.06%, sys=1.72%, ctx=4806, 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=142KiB/s (145kB/s), 35.0KiB/s-35.9KiB/s (35.9kB/s-36.7kB/s), io=23.4MiB (24.6MB), run=168130-169607msec WRITE: bw=148KiB/s (152kB/s), 36.8KiB/s-37.4KiB/s (37.6kB/s-38.3kB/s), io=24.6MiB (25.7MB), run=168130-169607msec 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=181045: Wed Sep 30 10:14:51 2026 read: IOPS=9, BW=157KiB/s (161kB/s)(5920KiB/37643msec) clat (usec): min=43, max=211671, avg=52308.31, stdev=35827.80 lat (usec): min=43, max=211673, avg=52309.67, stdev=35827.90 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 69], 10.00th=[ 159], 20.00th=[ 28443], | 30.00th=[ 33817], 40.00th=[ 40633], 50.00th=[ 45876], 60.00th=[ 53740], | 70.00th=[ 63701], 80.00th=[ 74974], 90.00th=[100140], 95.00th=[125305], | 99.00th=[166724], 99.50th=[173016], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 512, per=24.69%, avg=156.78, stdev=74.63, samples=74 iops : min= 1, max= 32, avg= 9.05, stdev= 4.80, samples=74 write: IOPS=10, BW=169KiB/s (173kB/s)(6368KiB/37643msec); 0 zone resets clat (usec): min=1549, max=299411, avg=45746.06, stdev=45470.84 lat (usec): min=1551, max=299414, avg=45761.31, stdev=45482.24 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2180], 10.00th=[ 3556], 20.00th=[ 6915], | 30.00th=[ 11600], 40.00th=[ 21890], 50.00th=[ 32637], 60.00th=[ 44827], | 70.00th=[ 60556], 80.00th=[ 78119], 90.00th=[106431], 95.00th=[127402], | 99.00th=[221250], 99.50th=[231736], 99.90th=[299893], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 29, max= 416, per=25.26%, avg=168.73, stdev=80.98, samples=74 iops : min= 1, max= 26, avg= 9.81, stdev= 5.13, samples=74 lat (usec) : 50=0.52%, 100=3.78%, 250=0.78%, 500=0.13% lat (msec) : 2=2.08%, 4=4.04%, 10=7.94%, 20=6.90%, 50=32.29% lat (msec) : 100=30.34%, 250=11.07%, 500=0.13% cpu : usr=0.07%, sys=4.46%, ctx=1629, 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=181046: Wed Sep 30 10:14:51 2026 read: IOPS=9, BW=155KiB/s (158kB/s)(5744KiB/37133msec) clat (usec): min=38, max=249417, avg=55174.93, stdev=40290.78 lat (usec): min=39, max=249419, avg=55177.42, stdev=40290.50 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 62], 10.00th=[ 285], 20.00th=[ 26346], | 30.00th=[ 34341], 40.00th=[ 40633], 50.00th=[ 48497], 60.00th=[ 58459], | 70.00th=[ 68682], 80.00th=[ 79168], 90.00th=[106431], 95.00th=[126354], | 99.00th=[206570], 99.50th=[244319], 99.90th=[248513], 99.95th=[248513], | 99.99th=[248513] bw ( KiB/s): min= 31, max= 348, per=24.19%, avg=153.61, stdev=65.59, samples=72 iops : min= 1, max= 21, avg= 8.85, stdev= 4.17, samples=72 write: IOPS=11, BW=176KiB/s (180kB/s)(6544KiB/37133msec); 0 zone resets clat (usec): min=1588, max=215838, avg=42161.82, stdev=41387.61 lat (usec): min=1590, max=215840, avg=42177.46, stdev=41385.69 clat percentiles (usec): | 1.00th=[ 1762], 5.00th=[ 2376], 10.00th=[ 3916], 20.00th=[ 7504], | 30.00th=[ 12125], 40.00th=[ 20841], 50.00th=[ 30016], 60.00th=[ 41681], | 70.00th=[ 52691], 80.00th=[ 66323], 90.00th=[ 99091], 95.00th=[120062], | 99.00th=[193987], 99.50th=[204473], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 29, max= 380, per=25.98%, avg=173.57, stdev=79.49, samples=72 iops : min= 1, max= 23, avg=10.10, stdev= 4.98, samples=72 lat (usec) : 50=0.39%, 100=3.65%, 250=0.52%, 500=0.13%, 750=0.13% lat (usec) : 1000=0.26% lat (msec) : 2=1.56%, 4=4.04%, 10=8.33%, 20=8.07%, 50=32.55% lat (msec) : 100=29.95%, 250=10.42% cpu : usr=0.08%, sys=4.79%, ctx=1602, 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=181047: Wed Sep 30 10:14:51 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(6256KiB/37691msec) clat (usec): min=36, max=351808, avg=54830.61, stdev=43661.04 lat (usec): min=36, max=351809, avg=54832.22, stdev=43661.07 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 62], 10.00th=[ 86], 20.00th=[ 25035], | 30.00th=[ 32900], 40.00th=[ 41157], 50.00th=[ 46924], 60.00th=[ 54264], | 70.00th=[ 64750], 80.00th=[ 79168], 90.00th=[108528], 95.00th=[125305], | 99.00th=[208667], 99.50th=[291505], 99.90th=[350225], 99.95th=[350225], | 99.99th=[350225] bw ( KiB/s): min= 31, max= 350, per=26.02%, avg=165.21, stdev=70.84, samples=73 iops : min= 1, max= 21, avg= 9.58, stdev= 4.44, samples=73 write: IOPS=10, BW=160KiB/s (164kB/s)(6032KiB/37691msec); 0 zone resets clat (usec): min=1348, max=215488, avg=42956.51, stdev=41179.65 lat (usec): min=1350, max=215491, avg=42962.09, stdev=41181.80 clat percentiles (usec): | 1.00th=[ 1844], 5.00th=[ 2606], 10.00th=[ 4080], 20.00th=[ 7373], | 30.00th=[ 12387], 40.00th=[ 21365], 50.00th=[ 32113], 60.00th=[ 43254], | 70.00th=[ 53740], 80.00th=[ 70779], 90.00th=[ 96994], 95.00th=[132645], | 99.00th=[179307], 99.50th=[196084], 99.90th=[214959], 99.95th=[214959], | 99.99th=[214959] bw ( KiB/s): min= 31, max= 475, per=23.52%, avg=157.14, stdev=79.78, samples=73 iops : min= 1, max= 29, avg= 9.05, stdev= 5.04, samples=73 lat (usec) : 50=0.39%, 100=4.95%, 250=0.65%, 750=0.26%, 1000=0.13% lat (msec) : 2=1.43%, 4=3.52%, 10=8.46%, 20=7.68%, 50=31.25% lat (msec) : 100=29.69%, 250=11.33%, 500=0.26% cpu : usr=0.06%, sys=4.69%, ctx=1655, 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=181048: Wed Sep 30 10:14:51 2026 read: IOPS=10, BW=164KiB/s (167kB/s)(6032KiB/36892msec) clat (usec): min=41, max=233170, avg=51817.25, stdev=38604.16 lat (usec): min=42, max=233171, avg=51819.78, stdev=38604.89 clat percentiles (usec): | 1.00th=[ 48], 5.00th=[ 59], 10.00th=[ 83], 20.00th=[ 22152], | 30.00th=[ 31589], 40.00th=[ 38536], 50.00th=[ 46400], 60.00th=[ 54264], | 70.00th=[ 64750], 80.00th=[ 80217], 90.00th=[100140], 95.00th=[120062], | 99.00th=[179307], 99.50th=[206570], 99.90th=[233833], 99.95th=[233833], | 99.99th=[233833] bw ( KiB/s): min= 30, max= 448, per=25.80%, avg=163.82, stdev=79.69, samples=71 iops : min= 1, max= 28, avg= 9.49, stdev= 5.11, samples=71 write: IOPS=10, BW=170KiB/s (174kB/s)(6256KiB/36892msec); 0 zone resets clat (usec): min=1452, max=427797, avg=44194.64, stdev=49606.15 lat (usec): min=1453, max=427800, avg=44197.18, stdev=49606.20 clat percentiles (usec): | 1.00th=[ 1696], 5.00th=[ 2008], 10.00th=[ 3097], 20.00th=[ 5735], | 30.00th=[ 9896], 40.00th=[ 18482], 50.00th=[ 28967], 60.00th=[ 42206], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[104334], 95.00th=[135267], | 99.00th=[240124], 99.50th=[274727], 99.90th=[425722], 99.95th=[425722], | 99.99th=[425722] bw ( KiB/s): min= 31, max= 384, per=25.39%, avg=169.62, stdev=76.59, samples=71 iops : min= 1, max= 24, avg= 9.85, stdev= 4.90, samples=71 lat (usec) : 50=0.52%, 100=4.95%, 250=0.39%, 750=0.13% lat (msec) : 2=2.73%, 4=4.30%, 10=9.38%, 20=7.55%, 50=31.51% lat (msec) : 100=27.73%, 250=10.55%, 500=0.26% cpu : usr=0.06%, sys=4.91%, ctx=1695, 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=635KiB/s (651kB/s), 155KiB/s-166KiB/s (158kB/s-170kB/s), io=23.4MiB (24.5MB), run=36892-37691msec WRITE: bw=669KiB/s (685kB/s), 160KiB/s-176KiB/s (164kB/s-180kB/s), io=24.6MiB (25.8MB), run=36892-37691msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181040: Wed Sep 30 10:15:04 2026 read: IOPS=7, BW=117KiB/s (120kB/s)(5920KiB/50416msec) clat (msec): min=7, max=283, avg=52.05, stdev=43.59 lat (msec): min=7, max=283, avg=52.05, stdev=43.59 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 25], 40.00th=[ 33], 50.00th=[ 38], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 73], 90.00th=[ 117], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 236], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 30, max= 347, per=25.14%, avg=118.15, stdev=78.13, samples=97 iops : min= 1, max= 21, avg= 6.60, stdev= 4.96, samples=97 write: IOPS=7, BW=126KiB/s (129kB/s)(6368KiB/50416msec); 0 zone resets clat (msec): min=15, max=370, avg=77.98, stdev=57.46 lat (msec): min=15, max=370, avg=77.99, stdev=57.46 clat percentiles (msec): | 1.00th=[ 17], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 57], 60.00th=[ 67], | 70.00th=[ 89], 80.00th=[ 120], 90.00th=[ 155], 95.00th=[ 186], | 99.00th=[ 288], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 434, per=25.59%, avg=126.40, stdev=79.25, samples=98 iops : min= 1, max= 27, avg= 7.12, stdev= 5.03, samples=98 lat (msec) : 10=0.52%, 20=9.51%, 50=41.67%, 100=28.65%, 250=18.49% lat (msec) : 500=1.17% cpu : usr=0.03%, sys=1.57%, ctx=1173, 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=181041: Wed Sep 30 10:15:04 2026 read: IOPS=7, BW=113KiB/s (116kB/s)(5744KiB/50924msec) clat (msec): min=6, max=318, avg=53.55, stdev=48.87 lat (msec): min=6, max=318, avg=53.55, stdev=48.87 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 56], 80.00th=[ 71], 90.00th=[ 121], 95.00th=[ 174], | 99.00th=[ 239], 99.50th=[ 271], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 30, max= 378, per=24.96%, avg=117.33, stdev=79.76, samples=95 iops : min= 1, max= 23, avg= 6.55, stdev= 5.03, samples=95 write: IOPS=8, BW=129KiB/s (132kB/s)(6544KiB/50924msec); 0 zone resets clat (msec): min=14, max=331, avg=77.12, stdev=52.89 lat (msec): min=14, max=331, avg=77.12, stdev=52.89 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 50], 50.00th=[ 61], 60.00th=[ 72], | 70.00th=[ 90], 80.00th=[ 117], 90.00th=[ 146], 95.00th=[ 188], | 99.00th=[ 245], 99.50th=[ 255], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 383, per=25.90%, avg=127.95, stdev=78.62, samples=99 iops : min= 1, max= 23, avg= 7.22, stdev= 4.97, samples=99 lat (msec) : 10=0.78%, 20=8.07%, 50=43.62%, 100=27.60%, 250=19.27% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.60%, ctx=1185, 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=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=181042: Wed Sep 30 10:15:04 2026 read: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/50211msec) clat (msec): min=7, max=263, avg=52.78, stdev=47.37 lat (msec): min=7, max=263, avg=52.78, stdev=47.37 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 43], | 70.00th=[ 55], 80.00th=[ 72], 90.00th=[ 118], 95.00th=[ 163], | 99.00th=[ 245], 99.50th=[ 247], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 30, max= 350, per=26.42%, avg=124.19, stdev=83.52, samples=99 iops : min= 1, max= 21, avg= 6.98, stdev= 5.27, samples=99 write: IOPS=7, BW=120KiB/s (123kB/s)(6032KiB/50211msec); 0 zone resets clat (msec): min=17, max=342, avg=77.94, stdev=54.47 lat (msec): min=17, max=342, avg=77.96, stdev=54.47 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 51], 50.00th=[ 61], 60.00th=[ 72], | 70.00th=[ 89], 80.00th=[ 113], 90.00th=[ 144], 95.00th=[ 180], | 99.00th=[ 309], 99.50th=[ 338], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 31, max= 403, per=24.90%, avg=123.01, stdev=70.49, samples=96 iops : min= 1, max= 25, avg= 6.91, stdev= 4.50, samples=96 lat (msec) : 10=0.26%, 20=9.24%, 50=44.01%, 100=27.47%, 250=17.84% lat (msec) : 500=1.17% cpu : usr=0.05%, sys=1.52%, ctx=1156, 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=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=181043: Wed Sep 30 10:15:04 2026 read: IOPS=7, BW=120KiB/s (123kB/s)(6032KiB/50317msec) clat (msec): min=8, max=251, avg=50.62, stdev=40.63 lat (msec): min=8, max=251, avg=50.62, stdev=40.63 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 37], 60.00th=[ 44], | 70.00th=[ 52], 80.00th=[ 74], 90.00th=[ 113], 95.00th=[ 142], | 99.00th=[ 182], 99.50th=[ 197], 99.90th=[ 251], 99.95th=[ 251], | 99.99th=[ 251] bw ( KiB/s): min= 30, max= 382, per=25.46%, avg=119.67, stdev=78.86, samples=98 iops : min= 1, max= 23, avg= 6.69, stdev= 5.00, samples=98 write: IOPS=7, BW=124KiB/s (127kB/s)(6256KiB/50317msec); 0 zone resets clat (msec): min=16, max=372, avg=79.71, stdev=54.48 lat (msec): min=16, max=372, avg=79.72, stdev=54.48 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 44], 40.00th=[ 54], 50.00th=[ 65], 60.00th=[ 77], | 70.00th=[ 91], 80.00th=[ 112], 90.00th=[ 153], 95.00th=[ 188], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 349, per=25.06%, avg=123.82, stdev=73.20, samples=99 iops : min= 1, max= 21, avg= 6.96, stdev= 4.65, samples=99 lat (msec) : 10=0.65%, 20=7.94%, 50=43.23%, 100=28.52%, 250=18.62% lat (msec) : 500=1.04% cpu : usr=0.04%, sys=1.63%, ctx=1191, 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=470KiB/s (482kB/s), 113KiB/s-125KiB/s (116kB/s-128kB/s), io=23.4MiB (24.5MB), run=50211-50924msec WRITE: bw=495KiB/s (507kB/s), 120KiB/s-129KiB/s (123kB/s-132kB/s), io=24.6MiB (25.8MB), run=50211-50924msec 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=181064: Wed Sep 30 10:15:19 2026 read: IOPS=1, BW=1991KiB/s (2038kB/s)(7168KiB/3601msec) clat (usec): min=1119, max=258037, avg=158000.39, stdev=82998.16 lat (usec): min=1121, max=258040, avg=158004.29, stdev=83000.12 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1123], 10.00th=[ 1123], 20.00th=[114820], | 30.00th=[149947], 40.00th=[149947], 50.00th=[175113], 60.00th=[187696], | 70.00th=[187696], 80.00th=[219153], 90.00th=[258999], 95.00th=[258999], | 99.00th=[258999], 99.50th=[258999], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 2000, max= 4413, per=76.86%, avg=3484.00, stdev=1298.72, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1422KiB/s (1456kB/s)(5120KiB/3601msec); 0 zone resets clat (msec): min=261, max=790, avg=483.66, stdev=225.32 lat (msec): min=261, max=790, avg=483.74, stdev=225.28 clat percentiles (msec): | 1.00th=[ 262], 5.00th=[ 262], 10.00th=[ 262], 20.00th=[ 262], | 30.00th=[ 279], 40.00th=[ 279], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 617], 80.00th=[ 617], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 2019, max= 4087, per=42.71%, avg=2711.00, stdev=1191.66, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 2=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=16.97%, ctx=162, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181065: Wed Sep 30 10:15:19 2026 read: IOPS=0, BW=453KiB/s (464kB/s)(2048KiB/4517msec) clat (usec): min=520, max=583491, avg=292006.11, stdev=412223.27 lat (usec): min=520, max=583494, avg=292007.64, stdev=412224.60 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=[583009], | 70.00th=[583009], 80.00th=[583009], 90.00th=[583009], 95.00th=[583009], | 99.00th=[583009], 99.50th=[583009], 99.90th=[583009], 99.95th=[583009], | 99.99th=[583009] bw ( KiB/s): min= 1462, max= 2000, per=38.19%, avg=1731.00, stdev=380.42, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2267KiB/s (2321kB/s)(10.0MiB/4517msec); 0 zone resets clat (msec): min=181, max=679, avg=388.47, stdev=167.61 lat (msec): min=181, max=679, avg=388.55, stdev=167.63 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 182], 10.00th=[ 182], 20.00th=[ 234], | 30.00th=[ 259], 40.00th=[ 313], 50.00th=[ 326], 60.00th=[ 338], | 70.00th=[ 409], 80.00th=[ 542], 90.00th=[ 609], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 2019, max= 6144, per=47.93%, avg=3042.00, stdev=1712.39, samples=6 iops : min= 1, max= 6, avg= 2.17, stdev= 2.04, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=41.67%, 750=33.33% cpu : usr=0.00%, sys=15.90%, ctx=150, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181067: Wed Sep 30 10:15:19 2026 read: IOPS=1, BW=1723KiB/s (1764kB/s)(6144KiB/3566msec) clat (msec): min=6, max=425, avg=265.97, stdev=144.38 lat (msec): min=6, max=425, avg=265.97, stdev=144.38 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 7], 10.00th=[ 7], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 330], | 70.00th=[ 347], 80.00th=[ 347], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 2003, max= 4039, per=55.71%, avg=2525.25, stdev=1009.36, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1723KiB/s (1764kB/s)(6144KiB/3566msec); 0 zone resets clat (msec): min=236, max=394, avg=319.99, stdev=70.20 lat (msec): min=236, max=394, avg=320.40, stdev=70.32 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 239], | 30.00th=[ 239], 40.00th=[ 313], 50.00th=[ 313], 60.00th=[ 368], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 2000, max= 2035, per=31.76%, avg=2015.83, stdev=13.72, samples=6 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=6 lat (msec) : 10=8.33%, 250=25.00%, 500=66.67% cpu : usr=0.03%, sys=19.41%, ctx=290, 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=181071: Wed Sep 30 10:15:19 2026 read: IOPS=1, BW=1414KiB/s (1448kB/s)(5120KiB/3622msec) clat (usec): min=456, max=279904, avg=56736.36, stdev=124756.16 lat (usec): min=457, max=279905, avg=56737.36, stdev=124756.21 clat percentiles (usec): | 1.00th=[ 457], 5.00th=[ 457], 10.00th=[ 457], 20.00th=[ 457], | 30.00th=[ 474], 40.00th=[ 474], 50.00th=[ 996], 60.00th=[ 996], | 70.00th=[ 1860], 80.00th=[ 1860], 90.00th=[278922], 95.00th=[278922], | 99.00th=[278922], 99.50th=[278922], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 7, max= 7, avg= 7.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1979KiB/s (2027kB/s)(7168KiB/3622msec); 0 zone resets clat (msec): min=217, max=859, avg=446.01, stdev=230.13 lat (msec): min=217, max=859, avg=446.11, stdev=230.20 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 300], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 334], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 651], 90.00th=[ 860], 95.00th=[ 860], | 99.00th=[ 860], 99.50th=[ 860], 99.90th=[ 860], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 1490, max= 4039, per=37.70%, avg=2393.00, stdev=1125.71, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=16.67%, 1000=8.33% lat (msec) : 2=8.33%, 250=8.33%, 500=41.67%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=14.19%, ctx=190, 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=4534KiB/s (4643kB/s), 453KiB/s-1991KiB/s (464kB/s-2038kB/s), io=20.0MiB (20.0MB), run=3566-4517msec WRITE: bw=6348KiB/s (6500kB/s), 1422KiB/s-2267KiB/s (1456kB/s-2321kB/s), io=28.0MiB (29.4MB), run=3566-4517msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181066: Wed Sep 30 10:15:19 2026 read: IOPS=1, BW=1868KiB/s (1913kB/s)(7168KiB/3837msec) clat (msec): min=94, max=374, avg=197.52, stdev=99.68 lat (msec): min=94, max=374, avg=197.52, stdev=99.68 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 95], 10.00th=[ 95], 20.00th=[ 118], | 30.00th=[ 148], 40.00th=[ 148], 50.00th=[ 153], 60.00th=[ 220], | 70.00th=[ 220], 80.00th=[ 279], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 2043, max= 4537, per=81.62%, avg=3452.67, stdev=1278.43, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1334KiB/s (1366kB/s)(5120KiB/3837msec); 0 zone resets clat (msec): min=165, max=955, avg=482.17, stdev=313.77 lat (msec): min=165, max=955, avg=482.31, stdev=313.73 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 165], 10.00th=[ 165], 20.00th=[ 165], | 30.00th=[ 288], 40.00th=[ 288], 50.00th=[ 380], 60.00th=[ 380], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 953], 95.00th=[ 953], | 99.00th=[ 953], 99.50th=[ 953], 99.90th=[ 953], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 1889, max= 2035, per=33.32%, avg=1973.20, stdev=59.83, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.05%, sys=6.44%, ctx=109, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181068: Wed Sep 30 10:15:19 2026 read: IOPS=0, BW=423KiB/s (433kB/s)(2048KiB/4841msec) clat (msec): min=520, max=625, avg=572.84, stdev=73.95 lat (msec): min=520, max=625, avg=572.85, stdev=73.95 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 523], 50.00th=[ 523], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 1383, max= 2043, per=40.50%, avg=1713.00, stdev=466.69, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2115KiB/s (2166kB/s)(10.0MiB/4841msec); 0 zone resets clat (msec): min=123, max=575, avg=364.20, stdev=143.72 lat (msec): min=123, max=575, avg=364.35, stdev=143.73 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 124], 10.00th=[ 124], 20.00th=[ 218], | 30.00th=[ 243], 40.00th=[ 334], 50.00th=[ 359], 60.00th=[ 376], | 70.00th=[ 401], 80.00th=[ 468], 90.00th=[ 550], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 1889, max= 4071, per=47.36%, avg=2804.40, stdev=1135.83, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 250=25.00%, 500=41.67%, 750=33.33% cpu : usr=0.00%, sys=5.66%, ctx=117, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181069: Wed Sep 30 10:15:19 2026 read: IOPS=1, BW=1417KiB/s (1451kB/s)(6144KiB/4337msec) clat (msec): min=69, max=865, avg=248.92, stdev=304.72 lat (msec): min=69, max=865, avg=248.92, stdev=304.72 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 69], 10.00th=[ 69], 20.00th=[ 87], | 30.00th=[ 87], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 153], | 70.00th=[ 174], 80.00th=[ 174], 90.00th=[ 869], 95.00th=[ 869], | 99.00th=[ 869], 99.50th=[ 869], 99.90th=[ 869], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 1935, max= 2043, per=47.08%, avg=1991.33, stdev=54.15, samples=3 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=3 write: IOPS=1, BW=1417KiB/s (1451kB/s)(6144KiB/4337msec); 0 zone resets clat (msec): min=91, max=1013, avg=427.60, stdev=326.22 lat (msec): min=91, max=1015, avg=429.29, stdev=326.00 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 92], 10.00th=[ 92], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 284], 50.00th=[ 284], 60.00th=[ 409], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 1011], 95.00th=[ 1011], | 99.00th=[ 1011], 99.50th=[ 1011], 99.90th=[ 1011], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 1381, max= 1996, per=30.40%, avg=1800.25, stdev=282.92, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=25.00%, 250=33.33%, 500=16.67%, 750=8.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=7.82%, ctx=119, 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=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=181070: Wed Sep 30 10:15:19 2026 read: IOPS=1, BW=1070KiB/s (1096kB/s)(5120KiB/4783msec) clat (msec): min=72, max=143, avg=104.64, stdev=27.21 lat (msec): min=72, max=143, avg=104.64, stdev=27.21 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 73], | 30.00th=[ 89], 40.00th=[ 89], 50.00th=[ 101], 60.00th=[ 101], | 70.00th=[ 118], 80.00th=[ 118], 90.00th=[ 144], 95.00th=[ 144], | 99.00th=[ 144], 99.50th=[ 144], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 1996, max= 6131, per=96.06%, avg=4063.50, stdev=2923.89, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1499KiB/s (1535kB/s)(7168KiB/4783msec); 0 zone resets clat (msec): min=139, max=1120, avg=574.74, stdev=385.47 lat (msec): min=139, max=1120, avg=574.89, stdev=385.54 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 140], 10.00th=[ 140], 20.00th=[ 142], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 584], 60.00th=[ 810], | 70.00th=[ 810], 80.00th=[ 894], 90.00th=[ 1116], 95.00th=[ 1116], | 99.00th=[ 1116], 99.50th=[ 1116], 99.90th=[ 1116], 99.95th=[ 1116], | 99.99th=[ 1116] bw ( KiB/s): min= 1889, max= 2043, per=33.19%, avg=1965.75, stdev=67.62, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 100=16.67%, 250=41.67%, 500=8.33%, 750=8.33%, 1000=16.67% lat (msec) : 2000=8.33% cpu : usr=0.00%, sys=6.00%, ctx=135, 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=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=4231KiB/s (4332kB/s), 423KiB/s-1868KiB/s (433kB/s-1913kB/s), io=20.0MiB (20.0MB), run=3837-4841msec WRITE: bw=5923KiB/s (6065kB/s), 1334KiB/s-2115KiB/s (1366kB/s-2166kB/s), io=28.0MiB (29.4MB), run=3837-4841msec 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=181078: Wed Sep 30 10:15:34 2026 read: IOPS=1, BW=5018KiB/s (5138kB/s)(12.0MiB/2449msec) clat (msec): min=757, max=816, avg=778.75, stdev=32.77 lat (msec): min=757, max=816, avg=778.75, stdev=32.77 clat percentiles (msec): | 1.00th=[ 760], 5.00th=[ 760], 10.00th=[ 760], 20.00th=[ 760], | 30.00th=[ 760], 40.00th=[ 760], 50.00th=[ 760], 60.00th=[ 760], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 818], 95.00th=[ 818], | 99.00th=[ 818], 99.50th=[ 818], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7984, max= 8062, per=100.00%, avg=8023.00, stdev=55.15, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 1000=100.00% cpu : usr=0.04%, sys=19.24%, ctx=462, 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=181079: Wed Sep 30 10:15:34 2026 read: IOPS=0, BW=1378KiB/s (1411kB/s)(4096KiB/2973msec) clat (nsec): min=603210k, max=603210k, avg=603209945.00, stdev= 0.00 lat (nsec): min=603212k, max=603212k, avg=603212420.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 5580, max= 5580, per=100.00%, avg=5580.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2755KiB/s (2822kB/s)(8192KiB/2973msec); 0 zone resets clat (msec): min=883, max=1403, avg=1143.49, stdev=367.14 lat (msec): min=884, max=1404, avg=1144.36, stdev=367.61 clat percentiles (msec): | 1.00th=[ 885], 5.00th=[ 885], 10.00th=[ 885], 20.00th=[ 885], | 30.00th=[ 885], 40.00th=[ 885], 50.00th=[ 885], 60.00th=[ 1401], | 70.00th=[ 1401], 80.00th=[ 1401], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 8094, max= 8094, per=86.85%, avg=8094.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.59%, ctx=75, 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=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=181081: Wed Sep 30 10:15:34 2026 write: IOPS=0, BW=3495KiB/s (3579kB/s)(12.0MiB/3516msec); 0 zone resets clat (msec): min=262, max=2496, avg=1145.91, stdev=1188.18 lat (msec): min=262, max=2497, avg=1146.44, stdev=1188.62 clat percentiles (msec): | 1.00th=[ 264], 5.00th=[ 264], 10.00th=[ 264], 20.00th=[ 264], | 30.00th=[ 264], 40.00th=[ 676], 50.00th=[ 676], 60.00th=[ 676], | 70.00th=[ 2500], 80.00th=[ 2500], 90.00th=[ 2500], 95.00th=[ 2500], | 99.00th=[ 2500], 99.50th=[ 2500], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 8078, max= 8078, per=86.68%, avg=8078.00, 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%, >=2000=33.33% cpu : usr=0.00%, sys=3.10%, ctx=37, 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=181083: Wed Sep 30 10:15:34 2026 write: IOPS=0, BW=4049KiB/s (4146kB/s)(12.0MiB/3035msec); 0 zone resets clat (msec): min=464, max=1851, avg=958.60, stdev=775.08 lat (msec): min=465, max=1852, avg=959.03, stdev=775.19 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 464], 10.00th=[ 464], 20.00th=[ 464], | 30.00th=[ 464], 40.00th=[ 558], 50.00th=[ 558], 60.00th=[ 558], | 70.00th=[ 1854], 80.00th=[ 1854], 90.00th=[ 1854], 95.00th=[ 1854], | 99.00th=[ 1854], 99.50th=[ 1854], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 8000, max= 8110, per=86.44%, avg=8055.00, stdev=77.78, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.07%, sys=4.28%, ctx=76, 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=5511KiB/s (5643kB/s), 1378KiB/s-5018KiB/s (1411kB/s-5138kB/s), io=16.0MiB (16.8MB), run=2449-2973msec WRITE: bw=9320KiB/s (9543kB/s), 2755KiB/s-4049KiB/s (2822kB/s-4146kB/s), io=32.0MiB (33.6MB), run=2973-3516msec rand-rw: (groupid=0, jobs=1): err= 0: pid=181080: Wed Sep 30 10:15:34 2026 read: IOPS=1, BW=4748KiB/s (4862kB/s)(12.0MiB/2588msec) clat (msec): min=732, max=926, avg=812.93, stdev=101.35 lat (msec): min=732, max=926, avg=812.93, stdev=101.35 clat percentiles (msec): | 1.00th=[ 735], 5.00th=[ 735], 10.00th=[ 735], 20.00th=[ 735], | 30.00th=[ 735], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 927], 80.00th=[ 927], 90.00th=[ 927], 95.00th=[ 927], | 99.00th=[ 927], 99.50th=[ 927], 99.90th=[ 927], 99.95th=[ 927], | 99.99th=[ 927] bw ( KiB/s): min= 7529, max= 8143, per=100.00%, avg=7836.00, stdev=434.16, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=66.67% cpu : usr=0.19%, sys=4.41%, ctx=51, 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=181082: Wed Sep 30 10:15:34 2026 read: IOPS=0, BW=1139KiB/s (1167kB/s)(4096KiB/3595msec) clat (nsec): min=2030.6M, max=2030.6M, avg=2030637466.00, stdev= 0.00 lat (nsec): min=2030.6M, max=2030.6M, avg=2030639420.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2039], 5.00th=[ 2039], 10.00th=[ 2039], 20.00th=[ 2039], | 30.00th=[ 2039], 40.00th=[ 2039], 50.00th=[ 2039], 60.00th=[ 2039], | 70.00th=[ 2039], 80.00th=[ 2039], 90.00th=[ 2039], 95.00th=[ 2039], | 99.00th=[ 2039], 99.50th=[ 2039], 99.90th=[ 2039], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 8192, max= 8192, per=100.00%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2279KiB/s (2333kB/s)(8192KiB/3595msec); 0 zone resets clat (msec): min=679, max=732, avg=705.88, stdev=37.72 lat (msec): min=680, max=732, avg=706.43, stdev=37.36 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=[ 735], | 70.00th=[ 735], 80.00th=[ 735], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 8062, max= 8062, per=88.46%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.39%, sys=3.06%, ctx=57, 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=181084: Wed Sep 30 10:15:34 2026 write: IOPS=0, BW=3964KiB/s (4059kB/s)(12.0MiB/3100msec); 0 zone resets clat (msec): min=248, max=1652, avg=1016.13, stdev=711.18 lat (msec): min=249, max=1654, avg=1017.02, stdev=711.26 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 249], 40.00th=[ 1150], 50.00th=[ 1150], 60.00th=[ 1150], | 70.00th=[ 1653], 80.00th=[ 1653], 90.00th=[ 1653], 95.00th=[ 1653], | 99.00th=[ 1653], 99.50th=[ 1653], 99.90th=[ 1653], 99.95th=[ 1653], | 99.99th=[ 1653] bw ( KiB/s): min= 8143, max= 8143, per=89.35%, 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%, 2000=66.67% cpu : usr=0.06%, sys=5.45%, ctx=97, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=181085: Wed Sep 30 10:15:34 2026 write: IOPS=0, BW=3969KiB/s (4064kB/s)(12.0MiB/3096msec); 0 zone resets clat (msec): min=635, max=1487, avg=1019.15, stdev=431.90 lat (msec): min=636, max=1488, avg=1020.13, stdev=432.13 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 70.00th=[ 1485], 80.00th=[ 1485], 90.00th=[ 1485], 95.00th=[ 1485], | 99.00th=[ 1485], 99.50th=[ 1485], 99.90th=[ 1485], 99.95th=[ 1485], | 99.99th=[ 1485] bw ( KiB/s): min= 7515, max= 8159, per=85.99%, avg=7837.00, stdev=455.38, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.59%, ctx=69, 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=4557KiB/s (4667kB/s), 1139KiB/s-4748KiB/s (1167kB/s-4862kB/s), io=16.0MiB (16.8MB), run=2588-3595msec WRITE: bw=9115KiB/s (9334kB/s), 2279KiB/s-3969KiB/s (2333kB/s-4064kB/s), io=32.0MiB (33.6MB), run=3096-3595msec