== sanity test 398b: DIO and buffer IO race ============== 02:53:10 (1789023190) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.95247 s, 7.2 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=178538: Thu Sep 10 02:55:41 2026 read: IOPS=11, BW=45.9KiB/s (47.1kB/s)(5992KiB/130404msec) clat (usec): min=42, max=731551, avg=47845.62, stdev=33963.88 lat (usec): min=43, max=731552, avg=47849.35, stdev=33963.43 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 11994], 10.00th=[ 18220], 20.00th=[ 25297], | 30.00th=[ 30278], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 67634], 90.00th=[ 83362], 95.00th=[100140], | 99.00th=[149947], 99.50th=[181404], 99.90th=[229639], 99.95th=[734004], | 99.99th=[734004] bw ( KiB/s): min= 7, max= 103, per=24.91%, avg=45.59, stdev=18.34, samples=256 iops : min= 1, max= 25, avg=10.73, stdev= 4.62, samples=256 write: IOPS=12, BW=48.3KiB/s (49.4kB/s)(6296KiB/130404msec); 0 zone resets clat (usec): min=888, max=401469, avg=37178.60, stdev=37596.12 lat (usec): min=890, max=401471, avg=37187.27, stdev=37599.85 clat percentiles (usec): | 1.00th=[ 1139], 5.00th=[ 1352], 10.00th=[ 1811], 20.00th=[ 4555], | 30.00th=[ 9372], 40.00th=[ 19006], 50.00th=[ 28181], 60.00th=[ 36963], | 70.00th=[ 47973], 80.00th=[ 63177], 90.00th=[ 85459], 95.00th=[106431], | 99.00th=[166724], 99.50th=[189793], 99.90th=[267387], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 7, max= 143, per=25.05%, avg=48.10, stdev=20.44, samples=255 iops : min= 1, max= 35, avg=11.36, stdev= 5.13, samples=255 lat (usec) : 50=0.10%, 100=1.37%, 250=0.13%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.13% lat (msec) : 2=5.57%, 4=3.81%, 10=6.48%, 20=8.89%, 50=40.01% lat (msec) : 100=28.09%, 250=5.24%, 500=0.10%, 750=0.03% cpu : usr=0.09%, sys=5.06%, ctx=6515, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178539: Thu Sep 10 02:55:41 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(5940KiB/130584msec) clat (usec): min=45, max=744336, avg=48085.79, stdev=34477.71 lat (usec): min=46, max=744339, avg=48089.87, stdev=34477.75 clat percentiles (usec): | 1.00th=[ 65], 5.00th=[ 13829], 10.00th=[ 18220], 20.00th=[ 24511], | 30.00th=[ 30540], 40.00th=[ 35914], 50.00th=[ 41681], 60.00th=[ 48497], | 70.00th=[ 56886], 80.00th=[ 66847], 90.00th=[ 83362], 95.00th=[101188], | 99.00th=[156238], 99.50th=[187696], 99.90th=[252707], 99.95th=[742392], | 99.99th=[742392] bw ( KiB/s): min= 7, max= 102, per=24.66%, avg=45.13, stdev=17.69, samples=256 iops : min= 1, max= 25, avg=10.61, stdev= 4.44, samples=256 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(6348KiB/130584msec); 0 zone resets clat (usec): min=893, max=356945, avg=37156.66, stdev=38480.38 lat (usec): min=894, max=356948, avg=37160.99, stdev=38483.26 clat percentiles (usec): | 1.00th=[ 1106], 5.00th=[ 1319], 10.00th=[ 1614], 20.00th=[ 4293], | 30.00th=[ 8717], 40.00th=[ 17171], 50.00th=[ 26346], 60.00th=[ 36439], | 70.00th=[ 48497], 80.00th=[ 62653], 90.00th=[ 89654], 95.00th=[110625], | 99.00th=[158335], 99.50th=[185598], 99.90th=[329253], 99.95th=[358613], | 99.99th=[358613] bw ( KiB/s): min= 7, max= 135, per=25.17%, avg=48.32, stdev=21.53, samples=255 iops : min= 1, max= 33, avg=11.41, stdev= 5.40, samples=255 lat (usec) : 50=0.03%, 100=1.07%, 250=0.10%, 750=0.07%, 1000=0.13% lat (msec) : 2=6.02%, 4=3.61%, 10=6.90%, 20=10.84%, 50=37.73% lat (msec) : 100=27.21%, 250=6.15%, 500=0.10%, 750=0.03% cpu : usr=0.10%, sys=5.15%, ctx=6631, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178540: Thu Sep 10 02:55:41 2026 read: IOPS=11, BW=46.4KiB/s (47.6kB/s)(6028KiB/129775msec) clat (usec): min=37, max=272449, avg=47545.16, stdev=31179.28 lat (usec): min=37, max=272452, avg=47558.70, stdev=31169.64 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 10945], 10.00th=[ 17171], 20.00th=[ 23987], | 30.00th=[ 29230], 40.00th=[ 34866], 50.00th=[ 42206], 60.00th=[ 49021], | 70.00th=[ 57410], 80.00th=[ 66847], 90.00th=[ 84411], 95.00th=[103285], | 99.00th=[164627], 99.50th=[193987], 99.90th=[210764], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 111, per=25.26%, avg=46.23, stdev=19.60, samples=253 iops : min= 1, max= 27, avg=10.89, stdev= 4.93, samples=253 write: IOPS=12, BW=48.2KiB/s (49.4kB/s)(6260KiB/129775msec); 0 zone resets clat (usec): min=982, max=817308, avg=37011.52, stdev=43541.77 lat (usec): min=983, max=817310, avg=37021.30, stdev=43541.40 clat percentiles (usec): | 1.00th=[ 1188], 5.00th=[ 1385], 10.00th=[ 1663], 20.00th=[ 4015], | 30.00th=[ 8094], 40.00th=[ 15008], 50.00th=[ 25560], 60.00th=[ 35390], | 70.00th=[ 47973], 80.00th=[ 63701], 90.00th=[ 90702], 95.00th=[112722], | 99.00th=[156238], 99.50th=[185598], 99.90th=[505414], 99.95th=[817890], | 99.99th=[817890] bw ( KiB/s): min= 7, max= 135, per=24.94%, avg=47.89, stdev=21.55, samples=253 iops : min= 1, max= 33, avg=11.31, stdev= 5.43, samples=253 lat (usec) : 50=0.20%, 100=1.43%, 250=0.16%, 500=0.07%, 1000=0.07% lat (msec) : 2=6.05%, 4=4.10%, 10=7.58%, 20=9.51%, 50=37.66% lat (msec) : 100=26.89%, 250=6.18%, 500=0.03%, 750=0.03%, 1000=0.03% cpu : usr=0.10%, sys=5.18%, ctx=6581, 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=178541: Thu Sep 10 02:55:41 2026 read: IOPS=11, BW=47.3KiB/s (48.4kB/s)(6052KiB/128075msec) clat (usec): min=38, max=263716, avg=46499.12, stdev=28637.44 lat (usec): min=38, max=263717, avg=46502.37, stdev=28636.53 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 12125], 10.00th=[ 18220], 20.00th=[ 24249], | 30.00th=[ 29754], 40.00th=[ 34866], 50.00th=[ 41157], 60.00th=[ 49021], | 70.00th=[ 55837], 80.00th=[ 65799], 90.00th=[ 82314], 95.00th=[ 96994], | 99.00th=[139461], 99.50th=[166724], 99.90th=[258999], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 7, max= 95, per=25.56%, avg=46.77, stdev=17.84, samples=251 iops : min= 1, max= 23, avg=11.04, stdev= 4.47, samples=251 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(6236KiB/128075msec); 0 zone resets clat (usec): min=946, max=810106, avg=36882.38, stdev=42586.05 lat (usec): min=948, max=810109, avg=36888.51, stdev=42589.19 clat percentiles (usec): | 1.00th=[ 1123], 5.00th=[ 1319], 10.00th=[ 1582], 20.00th=[ 4015], | 30.00th=[ 7963], 40.00th=[ 17433], 50.00th=[ 27395], 60.00th=[ 35914], | 70.00th=[ 46400], 80.00th=[ 62653], 90.00th=[ 88605], 95.00th=[110625], | 99.00th=[162530], 99.50th=[212861], 99.90th=[278922], 99.95th=[809501], | 99.99th=[809501] bw ( KiB/s): min= 7, max= 119, per=25.11%, avg=48.22, stdev=18.89, samples=251 iops : min= 1, max= 29, avg=11.39, stdev= 4.75, samples=251 lat (usec) : 50=0.10%, 100=1.69%, 250=0.10%, 500=0.03%, 750=0.03% lat (usec) : 1000=0.07% lat (msec) : 2=6.38%, 4=3.71%, 10=6.51%, 20=9.34%, 50=38.80% lat (msec) : 100=27.47%, 250=5.57%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.08%, ctx=6427, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=184KiB/s (188kB/s), 45.5KiB/s-47.3KiB/s (46.6kB/s-48.4kB/s), io=23.4MiB (24.6MB), run=128075-130584msec WRITE: bw=193KiB/s (197kB/s), 48.2KiB/s-48.7KiB/s (49.4kB/s-49.9kB/s), io=24.6MiB (25.7MB), run=128075-130584msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178533: Thu Sep 10 02:56:17 2026 read: IOPS=8, BW=35.9KiB/s (36.7kB/s)(5992KiB/167124msec) clat (msec): min=5, max=898, avg=45.12, stdev=46.98 lat (msec): min=5, max=898, avg=45.13, stdev=46.98 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 20], 40.00th=[ 25], 50.00th=[ 30], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 65], 90.00th=[ 103], 95.00th=[ 138], | 99.00th=[ 207], 99.50th=[ 230], 99.90th=[ 326], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 144, per=25.52%, avg=36.50, stdev=26.65, samples=320 iops : min= 1, max= 36, avg= 8.47, stdev= 6.72, samples=320 write: IOPS=9, BW=37.7KiB/s (38.6kB/s)(6296KiB/167124msec); 0 zone resets clat (msec): min=10, max=374, avg=62.94, stdev=45.64 lat (msec): min=10, max=374, avg=62.95, stdev=45.64 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 40], 50.00th=[ 48], 60.00th=[ 61], | 70.00th=[ 78], 80.00th=[ 96], 90.00th=[ 125], 95.00th=[ 153], | 99.00th=[ 215], 99.50th=[ 249], 99.90th=[ 330], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 7, max= 135, per=25.26%, avg=37.64, stdev=25.40, samples=326 iops : min= 1, max= 33, avg= 8.75, stdev= 6.40, samples=326 lat (msec) : 10=2.73%, 20=16.50%, 50=41.99%, 100=24.58%, 250=13.87% lat (msec) : 500=0.29%, 1000=0.03% cpu : usr=0.07%, sys=1.85%, ctx=4906, 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=178534: Thu Sep 10 02:56:17 2026 read: IOPS=8, BW=35.5KiB/s (36.3kB/s)(5940KiB/167497msec) clat (msec): min=6, max=916, avg=42.39, stdev=42.78 lat (msec): min=6, max=916, avg=42.40, stdev=42.79 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 30], 60.00th=[ 36], | 70.00th=[ 45], 80.00th=[ 61], 90.00th=[ 92], 95.00th=[ 121], | 99.00th=[ 176], 99.50th=[ 199], 99.90th=[ 288], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 7, max= 150, per=25.46%, avg=36.41, stdev=26.02, samples=317 iops : min= 1, max= 37, avg= 8.45, stdev= 6.55, samples=317 write: IOPS=9, BW=37.9KiB/s (38.8kB/s)(6348KiB/167497msec); 0 zone resets clat (msec): min=9, max=500, avg=65.58, stdev=48.83 lat (msec): min=9, max=500, avg=65.59, stdev=48.83 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 34], 40.00th=[ 41], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 100], 90.00th=[ 133], 95.00th=[ 163], | 99.00th=[ 236], 99.50th=[ 259], 99.90th=[ 384], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 119, per=25.26%, avg=37.64, stdev=24.70, samples=327 iops : min= 1, max= 29, avg= 8.75, stdev= 6.22, samples=327 lat (msec) : 10=2.99%, 20=15.10%, 50=44.11%, 100=23.47%, 250=13.90% lat (msec) : 500=0.36%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=1.89%, ctx=4997, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178535: Thu Sep 10 02:56:17 2026 read: IOPS=8, BW=35.9KiB/s (36.8kB/s)(6028KiB/167701msec) clat (msec): min=5, max=337, avg=44.85, stdev=40.39 lat (msec): min=5, max=337, avg=44.86, stdev=40.38 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 11], 10.00th=[ 13], 20.00th=[ 17], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 32], 60.00th=[ 39], | 70.00th=[ 49], 80.00th=[ 66], 90.00th=[ 97], 95.00th=[ 130], | 99.00th=[ 201], 99.50th=[ 230], 99.90th=[ 330], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 7, max= 143, per=25.51%, avg=36.48, stdev=25.26, samples=322 iops : min= 1, max= 35, avg= 8.46, stdev= 6.36, samples=322 write: IOPS=9, BW=37.3KiB/s (38.2kB/s)(6260KiB/167701msec); 0 zone resets clat (msec): min=8, max=955, avg=63.64, stdev=53.51 lat (msec): min=8, max=955, avg=63.64, stdev=53.51 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 46], 60.00th=[ 60], | 70.00th=[ 75], 80.00th=[ 94], 90.00th=[ 130], 95.00th=[ 155], | 99.00th=[ 226], 99.50th=[ 284], 99.90th=[ 558], 99.95th=[ 953], | 99.99th=[ 953] bw ( KiB/s): min= 7, max= 136, per=25.25%, avg=37.63, stdev=26.10, samples=324 iops : min= 1, max= 34, avg= 8.75, stdev= 6.57, samples=324 lat (msec) : 10=2.47%, 20=15.76%, 50=43.82%, 100=24.09%, 250=13.41% lat (msec) : 500=0.39%, 750=0.03%, 1000=0.03% cpu : usr=0.08%, sys=1.87%, ctx=4987, 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=178536: Thu Sep 10 02:56:17 2026 read: IOPS=9, BW=36.2KiB/s (37.1kB/s)(6052KiB/167022msec) clat (msec): min=5, max=331, avg=44.00, stdev=39.06 lat (msec): min=5, max=331, avg=44.00, stdev=39.06 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 10], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 38], | 70.00th=[ 48], 80.00th=[ 64], 90.00th=[ 99], 95.00th=[ 129], | 99.00th=[ 186], 99.50th=[ 213], 99.90th=[ 253], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 159, per=25.98%, avg=37.15, stdev=25.95, samples=317 iops : min= 1, max= 39, avg= 8.62, stdev= 6.53, samples=317 write: IOPS=9, BW=37.3KiB/s (38.2kB/s)(6236KiB/167022msec); 0 zone resets clat (msec): min=11, max=945, avg=64.15, stdev=51.74 lat (msec): min=11, max=945, avg=64.15, stdev=51.74 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 19], 10.00th=[ 22], 20.00th=[ 28], | 30.00th=[ 33], 40.00th=[ 40], 50.00th=[ 50], 60.00th=[ 62], | 70.00th=[ 75], 80.00th=[ 96], 90.00th=[ 126], 95.00th=[ 153], | 99.00th=[ 226], 99.50th=[ 264], 99.90th=[ 550], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 120, per=24.88%, avg=37.06, stdev=24.36, samples=327 iops : min= 1, max= 30, avg= 8.60, stdev= 6.15, samples=327 lat (msec) : 10=2.54%, 20=15.40%, 50=42.97%, 100=25.00%, 250=13.74% lat (msec) : 500=0.29%, 750=0.03%, 1000=0.03% cpu : usr=0.07%, sys=1.94%, ctx=4903, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=143KiB/s (147kB/s), 35.5KiB/s-36.2KiB/s (36.3kB/s-37.1kB/s), io=23.4MiB (24.6MB), run=167022-167701msec WRITE: bw=150KiB/s (154kB/s), 37.3KiB/s-37.9KiB/s (38.2kB/s-38.8kB/s), io=24.6MiB (25.7MB), run=167022-167701msec 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=178581: Thu Sep 10 02:57:02 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(5920KiB/34898msec) clat (usec): min=52, max=235251, avg=51271.84, stdev=36255.73 lat (usec): min=52, max=235253, avg=51273.19, stdev=36255.74 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 69], 10.00th=[ 11994], 20.00th=[ 23987], | 30.00th=[ 31851], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 56361], | 70.00th=[ 63177], 80.00th=[ 72877], 90.00th=[ 89654], 95.00th=[123208], | 99.00th=[196084], 99.50th=[202376], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 31, max= 318, per=24.01%, avg=164.71, stdev=60.46, samples=68 iops : min= 1, max= 19, avg= 9.47, stdev= 3.80, samples=68 write: IOPS=11, BW=182KiB/s (187kB/s)(6368KiB/34898msec); 0 zone resets clat (usec): min=1276, max=281065, avg=39837.30, stdev=41752.44 lat (usec): min=1279, max=281067, avg=39842.86, stdev=41760.70 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 1926], 10.00th=[ 2933], 20.00th=[ 6390], | 30.00th=[ 10421], 40.00th=[ 16450], 50.00th=[ 26346], 60.00th=[ 34866], | 70.00th=[ 47449], 80.00th=[ 68682], 90.00th=[102237], 95.00th=[120062], | 99.00th=[193987], 99.50th=[250610], 99.90th=[283116], 99.95th=[283116], | 99.99th=[283116] bw ( KiB/s): min= 63, max= 380, per=24.90%, avg=179.76, stdev=74.85, samples=68 iops : min= 3, max= 23, avg=10.43, stdev= 4.68, samples=68 lat (usec) : 100=3.91%, 250=0.39%, 500=0.13% lat (msec) : 2=2.99%, 4=4.43%, 10=8.20%, 20=9.90%, 50=33.07% lat (msec) : 100=28.13%, 250=8.72%, 500=0.13% cpu : usr=0.11%, sys=5.36%, ctx=1689, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178582: Thu Sep 10 02:57:02 2026 read: IOPS=10, BW=166KiB/s (170kB/s)(5744KiB/34507msec) clat (usec): min=41, max=192452, avg=48264.78, stdev=30765.13 lat (usec): min=41, max=192454, avg=48266.26, stdev=30765.09 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 73], 10.00th=[ 14353], 20.00th=[ 25035], | 30.00th=[ 32637], 40.00th=[ 36963], 50.00th=[ 44827], 60.00th=[ 51643], | 70.00th=[ 58983], 80.00th=[ 67634], 90.00th=[ 88605], 95.00th=[102237], | 99.00th=[158335], 99.50th=[179307], 99.90th=[191890], 99.95th=[191890], | 99.99th=[191890] bw ( KiB/s): min= 47, max= 318, per=24.15%, avg=165.64, stdev=67.39, samples=67 iops : min= 2, max= 19, avg= 9.52, stdev= 4.23, samples=67 write: IOPS=11, BW=190KiB/s (194kB/s)(6544KiB/34507msec); 0 zone resets clat (usec): min=1404, max=327700, avg=41474.22, stdev=41883.51 lat (usec): min=1405, max=327703, avg=41476.83, stdev=41883.26 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2245], 10.00th=[ 3752], 20.00th=[ 7308], | 30.00th=[ 12780], 40.00th=[ 21103], 50.00th=[ 29754], 60.00th=[ 40109], | 70.00th=[ 52167], 80.00th=[ 69731], 90.00th=[ 90702], 95.00th=[125305], | 99.00th=[175113], 99.50th=[202376], 99.90th=[329253], 99.95th=[329253], | 99.99th=[329253] bw ( KiB/s): min= 31, max= 348, per=26.11%, avg=188.49, stdev=71.34, samples=67 iops : min= 1, max= 21, avg=10.99, stdev= 4.50, samples=67 lat (usec) : 50=0.13%, 100=2.86%, 250=0.52%, 500=0.13%, 750=0.26% lat (msec) : 2=2.21%, 4=3.65%, 10=7.68%, 20=9.11%, 50=36.72% lat (msec) : 100=29.43%, 250=7.03%, 500=0.26% cpu : usr=0.10%, sys=5.40%, ctx=1701, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178583: Thu Sep 10 02:57:02 2026 read: IOPS=11, BW=181KiB/s (185kB/s)(6256KiB/34614msec) clat (usec): min=50, max=341953, avg=52376.99, stdev=36603.59 lat (usec): min=51, max=341954, avg=52378.50, stdev=36603.72 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 93], 10.00th=[ 19792], 20.00th=[ 28181], | 30.00th=[ 34866], 40.00th=[ 40109], 50.00th=[ 45876], 60.00th=[ 54789], | 70.00th=[ 61604], 80.00th=[ 72877], 90.00th=[ 88605], 95.00th=[108528], | 99.00th=[185598], 99.50th=[316670], 99.90th=[341836], 99.95th=[341836], | 99.99th=[341836] bw ( KiB/s): min= 62, max= 318, per=26.34%, avg=180.69, stdev=62.85, samples=68 iops : min= 3, max= 19, avg=10.49, stdev= 3.93, samples=68 write: IOPS=10, BW=174KiB/s (178kB/s)(6032KiB/34614msec); 0 zone resets clat (usec): min=1678, max=257367, avg=37022.11, stdev=38843.91 lat (usec): min=1681, max=257369, avg=37024.86, stdev=38844.08 clat percentiles (usec): | 1.00th=[ 1745], 5.00th=[ 1975], 10.00th=[ 3326], 20.00th=[ 5800], | 30.00th=[ 9634], 40.00th=[ 14615], 50.00th=[ 21890], 60.00th=[ 34866], | 70.00th=[ 48497], 80.00th=[ 62653], 90.00th=[ 94897], 95.00th=[110625], | 99.00th=[164627], 99.50th=[196084], 99.90th=[256902], 99.95th=[256902], | 99.99th=[256902] bw ( KiB/s): min= 31, max= 381, per=24.02%, avg=173.40, stdev=81.13, samples=68 iops : min= 1, max= 23, avg=10.01, stdev= 5.10, samples=68 lat (usec) : 100=2.60%, 250=0.26%, 500=0.13%, 750=0.13% lat (msec) : 2=2.47%, 4=4.43%, 10=8.07%, 20=10.29%, 50=34.24% lat (msec) : 100=30.34%, 250=6.64%, 500=0.39% cpu : usr=0.08%, sys=5.25%, ctx=1630, 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=178584: Thu Sep 10 02:57:02 2026 read: IOPS=11, BW=178KiB/s (182kB/s)(6032KiB/33960msec) clat (usec): min=39, max=286940, avg=50834.77, stdev=36657.07 lat (usec): min=39, max=286941, avg=50840.44, stdev=36658.60 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 67], 10.00th=[ 167], 20.00th=[ 27132], | 30.00th=[ 32375], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 54789], | 70.00th=[ 62653], 80.00th=[ 72877], 90.00th=[ 90702], 95.00th=[106431], | 99.00th=[212861], 99.50th=[244319], 99.90th=[287310], 99.95th=[287310], | 99.99th=[287310] bw ( KiB/s): min= 61, max= 316, per=25.66%, avg=176.00, stdev=64.83, samples=66 iops : min= 3, max= 19, avg=10.18, stdev= 4.09, samples=66 write: IOPS=11, BW=184KiB/s (189kB/s)(6256KiB/33960msec); 0 zone resets clat (usec): min=1470, max=219255, avg=37280.30, stdev=38033.53 lat (usec): min=1473, max=219258, avg=37283.21, stdev=38032.98 clat percentiles (usec): | 1.00th=[ 1631], 5.00th=[ 1876], 10.00th=[ 3163], 20.00th=[ 6521], | 30.00th=[ 11469], 40.00th=[ 17171], 50.00th=[ 26084], 60.00th=[ 34341], | 70.00th=[ 45876], 80.00th=[ 63701], 90.00th=[ 88605], 95.00th=[104334], | 99.00th=[198181], 99.50th=[212861], 99.90th=[219153], 99.95th=[219153], | 99.99th=[219153] bw ( KiB/s): min= 31, max= 351, per=25.38%, avg=183.23, stdev=77.02, samples=66 iops : min= 1, max= 21, avg=10.65, stdev= 4.85, samples=66 lat (usec) : 50=0.39%, 100=4.04%, 250=0.78%, 500=0.26% lat (msec) : 2=3.26%, 4=3.65%, 10=7.81%, 20=8.72%, 50=35.03% lat (msec) : 100=29.69%, 250=6.25%, 500=0.13% cpu : usr=0.09%, sys=5.50%, ctx=1662, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=686KiB/s (703kB/s), 166KiB/s-181KiB/s (170kB/s-185kB/s), io=23.4MiB (24.5MB), run=33960-34898msec WRITE: bw=722KiB/s (739kB/s), 174KiB/s-190KiB/s (178kB/s-194kB/s), io=24.6MiB (25.8MB), run=33960-34898msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178586: Thu Sep 10 02:57:17 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(5920KiB/48927msec) clat (msec): min=8, max=265, avg=52.31, stdev=43.92 lat (msec): min=8, max=265, avg=52.31, stdev=43.92 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 15], 20.00th=[ 21], | 30.00th=[ 27], 40.00th=[ 31], 50.00th=[ 39], 60.00th=[ 48], | 70.00th=[ 57], 80.00th=[ 75], 90.00th=[ 106], 95.00th=[ 146], | 99.00th=[ 226], 99.50th=[ 262], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 31, max= 384, per=25.69%, avg=125.37, stdev=75.82, samples=92 iops : min= 1, max= 24, avg= 7.02, stdev= 4.78, samples=92 write: IOPS=8, BW=130KiB/s (133kB/s)(6368KiB/48927msec); 0 zone resets clat (msec): min=15, max=393, avg=73.78, stdev=51.01 lat (msec): min=15, max=393, avg=73.78, stdev=51.01 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 25], 10.00th=[ 30], 20.00th=[ 36], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 57], 60.00th=[ 69], | 70.00th=[ 84], 80.00th=[ 107], 90.00th=[ 138], 95.00th=[ 171], | 99.00th=[ 279], 99.50th=[ 342], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 24, max= 415, per=25.82%, avg=132.46, stdev=77.16, samples=94 iops : min= 1, max= 25, avg= 7.48, stdev= 4.87, samples=94 lat (msec) : 10=1.17%, 20=8.59%, 50=42.45%, 100=30.86%, 250=16.02% lat (msec) : 500=0.91% cpu : usr=0.04%, sys=1.66%, ctx=1238, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178587: Thu Sep 10 02:57:17 2026 read: IOPS=7, BW=119KiB/s (121kB/s)(5744KiB/48414msec) clat (msec): min=8, max=208, avg=48.92, stdev=39.16 lat (msec): min=8, max=208, avg=48.92, stdev=39.16 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 37], 60.00th=[ 45], | 70.00th=[ 54], 80.00th=[ 72], 90.00th=[ 101], 95.00th=[ 140], | 99.00th=[ 197], 99.50th=[ 205], 99.90th=[ 209], 99.95th=[ 209], | 99.99th=[ 209] bw ( KiB/s): min= 25, max= 447, per=25.06%, avg=122.30, stdev=79.93, samples=92 iops : min= 1, max= 27, avg= 6.83, stdev= 5.02, samples=92 write: IOPS=8, BW=135KiB/s (138kB/s)(6544KiB/48414msec); 0 zone resets clat (msec): min=16, max=379, avg=75.17, stdev=48.72 lat (msec): min=16, max=379, avg=75.19, stdev=48.71 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 25], 10.00th=[ 30], 20.00th=[ 39], | 30.00th=[ 46], 40.00th=[ 54], 50.00th=[ 62], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 108], 90.00th=[ 140], 95.00th=[ 167], | 99.00th=[ 224], 99.50th=[ 317], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 31, max= 351, per=26.82%, avg=137.59, stdev=72.01, samples=93 iops : min= 1, max= 21, avg= 7.80, stdev= 4.53, samples=93 lat (msec) : 10=1.04%, 20=8.07%, 50=40.36%, 100=33.46%, 250=16.54% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.69%, ctx=1186, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178588: Thu Sep 10 02:57:17 2026 read: IOPS=7, BW=127KiB/s (131kB/s)(6256KiB/49072msec) clat (msec): min=8, max=242, avg=52.09, stdev=43.73 lat (msec): min=8, max=242, avg=52.09, stdev=43.73 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 13], 10.00th=[ 17], 20.00th=[ 21], | 30.00th=[ 26], 40.00th=[ 30], 50.00th=[ 36], 60.00th=[ 45], | 70.00th=[ 54], 80.00th=[ 82], 90.00th=[ 121], 95.00th=[ 144], | 99.00th=[ 207], 99.50th=[ 213], 99.90th=[ 243], 99.95th=[ 243], | 99.99th=[ 243] bw ( KiB/s): min= 31, max= 473, per=26.61%, avg=129.87, stdev=87.21, samples=94 iops : min= 1, max= 29, avg= 7.32, stdev= 5.51, samples=94 write: IOPS=7, BW=123KiB/s (126kB/s)(6032KiB/49072msec); 0 zone resets clat (msec): min=17, max=332, avg=75.91, stdev=48.23 lat (msec): min=17, max=332, avg=75.92, stdev=48.23 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 39], | 30.00th=[ 44], 40.00th=[ 53], 50.00th=[ 63], 60.00th=[ 73], | 70.00th=[ 90], 80.00th=[ 111], 90.00th=[ 140], 95.00th=[ 165], | 99.00th=[ 251], 99.50th=[ 284], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 31, max= 351, per=23.94%, avg=122.82, stdev=72.28, samples=94 iops : min= 1, max= 21, avg= 6.86, stdev= 4.57, samples=94 lat (msec) : 10=0.78%, 20=9.38%, 50=43.10%, 100=26.56%, 250=19.66% lat (msec) : 500=0.52% cpu : usr=0.06%, sys=1.63%, ctx=1219, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178589: Thu Sep 10 02:57:17 2026 read: IOPS=7, BW=124KiB/s (127kB/s)(6032KiB/48797msec) clat (msec): min=8, max=265, avg=52.03, stdev=41.67 lat (msec): min=8, max=265, avg=52.03, stdev=41.67 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 16], 20.00th=[ 23], | 30.00th=[ 27], 40.00th=[ 33], 50.00th=[ 37], 60.00th=[ 46], | 70.00th=[ 56], 80.00th=[ 77], 90.00th=[ 110], 95.00th=[ 150], | 99.00th=[ 203], 99.50th=[ 205], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 29, max= 479, per=25.54%, avg=124.65, stdev=84.58, samples=95 iops : min= 1, max= 29, avg= 6.99, stdev= 5.32, samples=95 write: IOPS=8, BW=128KiB/s (131kB/s)(6256KiB/48797msec); 0 zone resets clat (msec): min=15, max=375, avg=74.12, stdev=53.26 lat (msec): min=15, max=375, avg=74.12, stdev=53.26 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 35], | 30.00th=[ 43], 40.00th=[ 50], 50.00th=[ 59], 60.00th=[ 70], | 70.00th=[ 86], 80.00th=[ 102], 90.00th=[ 132], 95.00th=[ 190], | 99.00th=[ 271], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 30, max= 383, per=25.25%, avg=129.54, stdev=80.06, samples=95 iops : min= 1, max= 23, avg= 7.29, stdev= 5.05, samples=95 lat (msec) : 10=0.78%, 20=7.55%, 50=43.49%, 100=31.64%, 250=15.49% lat (msec) : 500=1.04% cpu : usr=0.06%, sys=1.82%, ctx=1239, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=488KiB/s (500kB/s), 119KiB/s-127KiB/s (121kB/s-131kB/s), io=23.4MiB (24.5MB), run=48414-49072msec WRITE: bw=514KiB/s (526kB/s), 123KiB/s-135KiB/s (126kB/s-138kB/s), io=24.6MiB (25.8MB), run=48414-49072msec 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=178606: Thu Sep 10 02:57:33 2026 read: IOPS=1, BW=1428KiB/s (1462kB/s)(7168KiB/5021msec) clat (msec): min=238, max=446, avg=308.31, stdev=74.86 lat (msec): min=238, max=446, avg=308.31, stdev=74.86 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 239], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 309], 60.00th=[ 321], | 70.00th=[ 321], 80.00th=[ 351], 90.00th=[ 447], 95.00th=[ 447], | 99.00th=[ 447], 99.50th=[ 447], 99.90th=[ 447], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 1851, max= 4023, per=59.00%, avg=2364.20, stdev=932.01, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=0, BW=1020KiB/s (1044kB/s)(5120KiB/5021msec); 0 zone resets clat (msec): min=202, max=1158, avg=492.73, stdev=387.83 lat (msec): min=204, max=1158, avg=493.30, stdev=387.38 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 203], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 305], 60.00th=[ 305], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 1861, max= 4023, per=43.78%, avg=2455.75, stdev=1047.80, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=25.00%, 500=58.33%, 750=8.33%, 2000=8.33% cpu : usr=0.00%, sys=11.25%, ctx=230, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178607: Thu Sep 10 02:57:33 2026 read: IOPS=0, BW=408KiB/s (418kB/s)(2048KiB/5018msec) clat (msec): min=227, max=317, avg=272.61, stdev=63.30 lat (msec): min=227, max=317, avg=272.61, stdev=63.30 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 228], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 228], 60.00th=[ 317], | 70.00th=[ 317], 80.00th=[ 317], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 1486, max= 2011, per=43.64%, avg=1748.50, stdev=371.23, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2041KiB/s (2090kB/s)(10.0MiB/5018msec); 0 zone resets clat (msec): min=142, max=958, avg=439.28, stdev=271.79 lat (msec): min=142, max=967, avg=440.28, stdev=273.68 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 163], 40.00th=[ 300], 50.00th=[ 326], 60.00th=[ 422], | 70.00th=[ 617], 80.00th=[ 625], 90.00th=[ 676], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 1486, max= 4087, per=44.40%, avg=2490.14, stdev=1092.43, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (msec) : 250=33.33%, 500=33.33%, 750=25.00%, 1000=8.33% cpu : usr=0.04%, sys=10.88%, ctx=155, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178608: Thu Sep 10 02:57:33 2026 read: IOPS=1, BW=1202KiB/s (1231kB/s)(6144KiB/5111msec) clat (usec): min=541, max=491018, avg=257514.26, stdev=201489.03 lat (usec): min=542, max=491019, avg=257515.42, stdev=201488.99 clat percentiles (usec): | 1.00th=[ 545], 5.00th=[ 545], 10.00th=[ 545], 20.00th=[ 28705], | 30.00th=[ 28705], 40.00th=[291505], 50.00th=[291505], 60.00th=[316670], | 70.00th=[417334], 80.00th=[417334], 90.00th=[492831], 95.00th=[492831], | 99.00th=[492831], 99.50th=[492831], 99.90th=[492831], 99.95th=[492831], | 99.99th=[492831] bw ( KiB/s): min= 1851, max= 3792, per=60.38%, avg=2419.25, stdev=918.52, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 write: IOPS=1, BW=1202KiB/s (1231kB/s)(6144KiB/5111msec); 0 zone resets clat (msec): min=238, max=1223, avg=567.84, stdev=436.65 lat (msec): min=238, max=1223, avg=567.95, stdev=436.65 clat percentiles (msec): | 1.00th=[ 239], 5.00th=[ 239], 10.00th=[ 239], 20.00th=[ 243], | 30.00th=[ 243], 40.00th=[ 251], 50.00th=[ 251], 60.00th=[ 443], | 70.00th=[ 1011], 80.00th=[ 1011], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 1851, max= 4087, per=51.66%, avg=2897.75, stdev=1208.93, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 lat (usec) : 750=8.33% lat (msec) : 50=8.33%, 250=16.67%, 500=50.00%, 2000=16.67% cpu : usr=0.00%, sys=10.14%, ctx=230, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178609: Thu Sep 10 02:57:33 2026 read: IOPS=1, BW=1111KiB/s (1138kB/s)(5120KiB/4609msec) clat (usec): min=460, max=393858, avg=168328.92, stdev=170427.05 lat (usec): min=461, max=393859, avg=168330.58, stdev=170427.06 clat percentiles (usec): | 1.00th=[ 461], 5.00th=[ 461], 10.00th=[ 461], 20.00th=[ 461], | 30.00th=[ 1991], 40.00th=[ 1991], 50.00th=[181404], 60.00th=[181404], | 70.00th=[265290], 80.00th=[265290], 90.00th=[392168], 95.00th=[392168], | 99.00th=[392168], 99.50th=[392168], 99.90th=[392168], 99.95th=[392168], | 99.99th=[392168] bw ( KiB/s): min= 1851, max= 6035, per=98.40%, avg=3943.00, stdev=2958.53, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1555KiB/s (1593kB/s)(7168KiB/4609msec); 0 zone resets clat (msec): min=284, max=909, avg=484.22, stdev=208.03 lat (msec): min=285, max=911, avg=484.60, stdev=208.72 clat percentiles (msec): | 1.00th=[ 284], 5.00th=[ 284], 10.00th=[ 284], 20.00th=[ 317], | 30.00th=[ 435], 40.00th=[ 435], 50.00th=[ 435], 60.00th=[ 460], | 70.00th=[ 460], 80.00th=[ 558], 90.00th=[ 911], 95.00th=[ 911], | 99.00th=[ 911], 99.50th=[ 911], 99.90th=[ 911], 99.95th=[ 911], | 99.99th=[ 911] bw ( KiB/s): min= 1851, max= 4087, per=42.19%, avg=2366.60, stdev=965.11, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=8.33%, 500=58.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=11.09%, ctx=156, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4007KiB/s (4103kB/s), 408KiB/s-1428KiB/s (418kB/s-1462kB/s), io=20.0MiB (20.0MB), run=4609-5111msec WRITE: bw=5610KiB/s (5744kB/s), 1020KiB/s-2041KiB/s (1044kB/s-2090kB/s), io=28.0MiB (29.4MB), run=4609-5111msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178602: Thu Sep 10 02:57:33 2026 read: IOPS=1, BW=1702KiB/s (1743kB/s)(7168KiB/4212msec) clat (msec): min=127, max=236, avg=157.73, stdev=39.53 lat (msec): min=127, max=236, avg=157.74, stdev=39.53 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 129], 10.00th=[ 129], 20.00th=[ 130], | 30.00th=[ 136], 40.00th=[ 136], 50.00th=[ 140], 60.00th=[ 155], | 70.00th=[ 155], 80.00th=[ 184], 90.00th=[ 236], 95.00th=[ 236], | 99.00th=[ 236], 99.50th=[ 236], 99.90th=[ 236], 99.95th=[ 236], | 99.99th=[ 236] bw ( KiB/s): min= 2003, max= 4420, per=93.82%, avg=3326.00, stdev=1224.66, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1215KiB/s (1244kB/s)(5120KiB/4213msec); 0 zone resets clat (msec): min=156, max=792, avg=577.16, stdev=253.46 lat (msec): min=156, max=792, avg=577.26, stdev=253.44 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 760], 80.00th=[ 760], 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= 1777, max= 2035, per=38.79%, avg=1925.00, stdev=117.88, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 250=66.67%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=2.85%, ctx=74, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=178603: Thu Sep 10 02:57:33 2026 read: IOPS=0, BW=361KiB/s (370kB/s)(2048KiB/5672msec) clat (msec): min=131, max=282, avg=207.12, stdev=106.77 lat (msec): min=131, max=282, avg=207.12, stdev=106.77 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 132], 10.00th=[ 132], 20.00th=[ 132], | 30.00th=[ 132], 40.00th=[ 132], 50.00th=[ 132], 60.00th=[ 284], | 70.00th=[ 284], 80.00th=[ 284], 90.00th=[ 284], 95.00th=[ 284], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 1617, max= 2048, per=51.69%, avg=1832.50, stdev=304.76, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1805KiB/s (1849kB/s)(10.0MiB/5672msec); 0 zone resets clat (msec): min=120, max=802, avg=505.23, stdev=234.57 lat (msec): min=120, max=802, avg=505.60, stdev=234.50 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 122], 10.00th=[ 122], 20.00th=[ 300], | 30.00th=[ 338], 40.00th=[ 380], 50.00th=[ 384], 60.00th=[ 542], | 70.00th=[ 659], 80.00th=[ 760], 90.00th=[ 768], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 2003, max= 4071, per=58.55%, avg=2906.00, stdev=1015.49, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (msec) : 250=16.67%, 500=41.67%, 750=16.67%, 1000=25.00% cpu : usr=0.02%, sys=5.38%, ctx=122, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178604: Thu Sep 10 02:57:33 2026 read: IOPS=1, BW=1291KiB/s (1322kB/s)(6144KiB/4758msec) clat (msec): min=127, max=662, avg=286.40, stdev=207.47 lat (msec): min=127, max=662, avg=286.40, stdev=207.47 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 128], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 148], 50.00th=[ 148], 60.00th=[ 262], | 70.00th=[ 376], 80.00th=[ 376], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 2003, max= 4096, per=92.81%, avg=3290.00, stdev=1126.36, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1291KiB/s (1322kB/s)(6144KiB/4759msec); 0 zone resets clat (msec): min=119, max=979, avg=475.04, stdev=294.19 lat (msec): min=119, max=980, avg=476.69, stdev=294.37 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 121], 10.00th=[ 121], 20.00th=[ 347], | 30.00th=[ 347], 40.00th=[ 347], 50.00th=[ 347], 60.00th=[ 447], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 1481, max= 2048, per=37.65%, avg=1868.80, stdev=243.19, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 lat (msec) : 250=33.33%, 500=41.67%, 750=16.67%, 1000=8.33% cpu : usr=0.04%, sys=4.08%, ctx=87, 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=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=178605: Thu Sep 10 02:57:33 2026 read: IOPS=0, BW=886KiB/s (908kB/s)(5120KiB/5776msec) clat (msec): min=76, max=1103, avg=479.82, stdev=419.89 lat (msec): min=76, max=1103, avg=479.83, stdev=419.89 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 77], 10.00th=[ 77], 20.00th=[ 77], | 30.00th=[ 228], 40.00th=[ 228], 50.00th=[ 284], 60.00th=[ 284], | 70.00th=[ 709], 80.00th=[ 709], 90.00th=[ 1099], 95.00th=[ 1099], | 99.00th=[ 1099], 99.50th=[ 1099], 99.90th=[ 1099], 99.95th=[ 1099], | 99.99th=[ 1099] bw ( KiB/s): min= 3225, max= 4007, per=100.00%, avg=3616.00, stdev=552.96, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1241KiB/s (1271kB/s)(7168KiB/5776msec); 0 zone resets clat (msec): min=176, max=824, avg=468.88, stdev=254.01 lat (msec): min=178, max=824, avg=469.22, stdev=253.70 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 205], | 30.00th=[ 284], 40.00th=[ 284], 50.00th=[ 502], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 709], 90.00th=[ 827], 95.00th=[ 827], | 99.00th=[ 827], 99.50th=[ 827], 99.90th=[ 827], 99.95th=[ 827], | 99.99th=[ 827] bw ( KiB/s): min= 1456, max= 4071, per=45.26%, avg=2246.40, stdev=1042.38, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=25.00%, 500=16.67%, 750=33.33%, 1000=8.33% lat (msec) : 2000=8.33% cpu : usr=0.05%, sys=3.08%, ctx=98, 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=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=3546KiB/s (3631kB/s), 361KiB/s-1702KiB/s (370kB/s-1743kB/s), io=20.0MiB (20.0MB), run=4212-5776msec WRITE: bw=4964KiB/s (5083kB/s), 1215KiB/s-1805KiB/s (1244kB/s-1849kB/s), io=28.0MiB (29.4MB), run=4213-5776msec 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=178621: Thu Sep 10 02:57:50 2026 read: IOPS=1, BW=4435KiB/s (4541kB/s)(12.0MiB/2771msec) clat (msec): min=338, max=1244, avg=919.20, stdev=504.48 lat (msec): min=338, max=1244, avg=919.23, stdev=504.50 clat percentiles (msec): | 1.00th=[ 338], 5.00th=[ 338], 10.00th=[ 338], 20.00th=[ 338], | 30.00th=[ 338], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1250], 80.00th=[ 1250], 90.00th=[ 1250], 95.00th=[ 1250], | 99.00th=[ 1250], 99.50th=[ 1250], 99.90th=[ 1250], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 8000, max= 8110, per=100.00%, 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%, 2000=66.67% cpu : usr=0.22%, sys=3.25%, ctx=32, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178622: Thu Sep 10 02:57:50 2026 read: IOPS=0, BW=1142KiB/s (1169kB/s)(4096KiB/3588msec) clat (nsec): min=2330.3M, max=2330.3M, avg=2330273418.00, stdev= 0.00 lat (nsec): min=2330.3M, max=2330.3M, avg=2330275485.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 2333], 5.00th=[ 2333], 10.00th=[ 2333], 20.00th=[ 2333], | 30.00th=[ 2333], 40.00th=[ 2333], 50.00th=[ 2333], 60.00th=[ 2333], | 70.00th=[ 2333], 80.00th=[ 2333], 90.00th=[ 2333], 95.00th=[ 2333], | 99.00th=[ 2333], 99.50th=[ 2333], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 8110, max= 8110, per=100.00%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2283KiB/s (2338kB/s)(8192KiB/3588msec); 0 zone resets clat (msec): min=588, max=664, avg=626.82, stdev=53.50 lat (msec): min=589, max=665, avg=627.43, stdev=53.21 clat percentiles (msec): | 1.00th=[ 592], 5.00th=[ 592], 10.00th=[ 592], 20.00th=[ 592], | 30.00th=[ 592], 40.00th=[ 592], 50.00th=[ 592], 60.00th=[ 667], | 70.00th=[ 667], 80.00th=[ 667], 90.00th=[ 667], 95.00th=[ 667], | 99.00th=[ 667], 99.50th=[ 667], 99.90th=[ 667], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 8000, max= 8000, per=87.60%, avg=8000.00, 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=0.00%, sys=2.37%, ctx=43, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178623: Thu Sep 10 02:57:50 2026 write: IOPS=0, BW=3432KiB/s (3515kB/s)(12.0MiB/3580msec); 0 zone resets clat (msec): min=328, max=1719, avg=1191.24, stdev=753.56 lat (msec): min=328, max=1720, avg=1191.72, stdev=753.63 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 1519], 50.00th=[ 1519], 60.00th=[ 1519], | 70.00th=[ 1720], 80.00th=[ 1720], 90.00th=[ 1720], 95.00th=[ 1720], | 99.00th=[ 1720], 99.50th=[ 1720], 99.90th=[ 1720], 99.95th=[ 1720], | 99.99th=[ 1720] bw ( KiB/s): min= 8062, max= 8062, per=88.28%, avg=8062.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=66.67% cpu : usr=0.03%, sys=3.10%, ctx=42, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178625: Thu Sep 10 02:57:50 2026 write: IOPS=0, BW=3735KiB/s (3825kB/s)(12.0MiB/3290msec); 0 zone resets clat (msec): min=222, max=2486, avg=1074.34, stdev=1231.71 lat (msec): min=223, max=2486, avg=1076.17, stdev=1230.62 clat percentiles (msec): | 1.00th=[ 224], 5.00th=[ 224], 10.00th=[ 224], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 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= 6050, max= 8000, per=76.93%, avg=7025.00, stdev=1378.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 750=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.89%, ctx=46, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4566KiB/s (4676kB/s), 1142KiB/s-4435KiB/s (1169kB/s-4541kB/s), io=16.0MiB (16.8MB), run=2771-3588msec WRITE: bw=9133KiB/s (9352kB/s), 2283KiB/s-3735KiB/s (2338kB/s-3825kB/s), io=32.0MiB (33.6MB), run=3290-3588msec rand-rw: (groupid=0, jobs=1): err= 0: pid=178617: Thu Sep 10 02:57:50 2026 read: IOPS=1, BW=4561KiB/s (4671kB/s)(12.0MiB/2694msec) clat (msec): min=709, max=958, avg=869.12, stdev=138.86 lat (msec): min=709, max=958, avg=869.12, stdev=138.86 clat percentiles (msec): | 1.00th=[ 709], 5.00th=[ 709], 10.00th=[ 709], 20.00th=[ 709], | 30.00th=[ 709], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 961], 80.00th=[ 961], 90.00th=[ 961], 95.00th=[ 961], | 99.00th=[ 961], 99.50th=[ 961], 99.90th=[ 961], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7892, max= 8015, per=100.00%, avg=7953.50, stdev=86.97, 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=0.00%, sys=13.85%, ctx=508, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178618: Thu Sep 10 02:57:50 2026 read: IOPS=0, BW=1234KiB/s (1264kB/s)(4096KiB/3319msec) clat (nsec): min=968343k, max=968343k, avg=968342945.00, stdev= 0.00 lat (nsec): min=968344k, max=968344k, avg=968344142.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 969], 5.00th=[ 969], 10.00th=[ 969], 20.00th=[ 969], | 30.00th=[ 969], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 969], 80.00th=[ 969], 90.00th=[ 969], 95.00th=[ 969], | 99.00th=[ 969], 99.50th=[ 969], 99.90th=[ 969], 99.95th=[ 969], | 99.99th=[ 969] bw ( KiB/s): min= 8015, max= 8015, per=100.00%, avg=8015.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2468KiB/s (2527kB/s)(8192KiB/3319msec); 0 zone resets clat (msec): min=176, max=2152, avg=1164.61, stdev=1397.10 lat (msec): min=177, max=2152, avg=1165.07, stdev=1397.03 clat percentiles (msec): | 1.00th=[ 178], 5.00th=[ 178], 10.00th=[ 178], 20.00th=[ 178], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 178], 60.00th=[ 2165], | 70.00th=[ 2165], 80.00th=[ 2165], 90.00th=[ 2165], 95.00th=[ 2165], | 99.00th=[ 2165], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.03%, sys=4.49%, ctx=112, 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=178619: Thu Sep 10 02:57:50 2026 write: IOPS=0, BW=2788KiB/s (2855kB/s)(12.0MiB/4407msec); 0 zone resets clat (msec): min=476, max=2570, avg=1407.45, stdev=1065.99 lat (msec): min=477, max=2570, avg=1407.94, stdev=1065.89 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 2567], 80.00th=[ 2567], 90.00th=[ 2567], 95.00th=[ 2567], | 99.00th=[ 2567], 99.50th=[ 2567], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 8062, max= 8159, per=100.00%, avg=8110.50, stdev=68.59, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=3.97%, ctx=80, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=178620: Thu Sep 10 02:57:50 2026 write: IOPS=0, BW=3786KiB/s (3876kB/s)(12.0MiB/3246msec); 0 zone resets clat (msec): min=361, max=2363, avg=1076.19, stdev=1117.20 lat (msec): min=362, max=2364, avg=1076.80, stdev=1117.11 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 2366], 80.00th=[ 2366], 90.00th=[ 2366], 95.00th=[ 2366], | 99.00th=[ 2366], 99.50th=[ 2366], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7728, max= 8015, per=100.00%, avg=7871.50, stdev=202.94, 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=0.00%, sys=3.20%, ctx=64, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4936KiB/s (5055kB/s), 1234KiB/s-4561KiB/s (1264kB/s-4671kB/s), io=16.0MiB (16.8MB), run=2694-3319msec WRITE: bw=7435KiB/s (7614kB/s), 2468KiB/s-3786KiB/s (2527kB/s-3876kB/s), io=32.0MiB (33.6MB), run=3246-4407msec