== sanity test 398b: DIO and buffer IO race ============== 04:19:57 (1788941997) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 5.92056 s, 8.5 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=179226: Wed Sep 9 04:22:13 2026 read: IOPS=13, BW=53.1KiB/s (54.4kB/s)(5992KiB/112780msec) clat (usec): min=35, max=369365, avg=41707.77, stdev=28164.32 lat (usec): min=35, max=369366, avg=41714.99, stdev=28165.62 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 11994], 10.00th=[ 16057], 20.00th=[ 21627], | 30.00th=[ 25822], 40.00th=[ 31065], 50.00th=[ 36439], 60.00th=[ 42730], | 70.00th=[ 49021], 80.00th=[ 58459], 90.00th=[ 73925], 95.00th=[ 86508], | 99.00th=[145753], 99.50th=[168821], 99.90th=[308282], 99.95th=[371196], | 99.99th=[371196] bw ( KiB/s): min= 7, max= 111, per=25.24%, avg=52.50, stdev=18.14, samples=223 iops : min= 1, max= 27, avg=12.47, stdev= 4.55, samples=223 write: IOPS=13, BW=55.8KiB/s (57.2kB/s)(6296KiB/112780msec); 0 zone resets clat (usec): min=1008, max=245980, avg=31840.34, stdev=33303.68 lat (usec): min=1009, max=245982, avg=31855.06, stdev=33301.70 clat percentiles (usec): | 1.00th=[ 1090], 5.00th=[ 1205], 10.00th=[ 1565], 20.00th=[ 3621], | 30.00th=[ 6652], 40.00th=[ 14877], 50.00th=[ 23725], 60.00th=[ 30802], | 70.00th=[ 40109], 80.00th=[ 54789], 90.00th=[ 73925], 95.00th=[ 93848], | 99.00th=[147850], 99.50th=[183501], 99.90th=[235930], 99.95th=[246416], | 99.99th=[246416] bw ( KiB/s): min= 7, max= 149, per=25.40%, avg=55.38, stdev=22.15, samples=222 iops : min= 1, max= 37, avg=13.19, stdev= 5.56, samples=222 lat (usec) : 50=0.13%, 100=1.24%, 250=0.29%, 500=0.07%, 750=0.03% lat (msec) : 2=6.32%, 4=4.85%, 10=7.06%, 20=11.39%, 50=42.48% lat (msec) : 100=22.56%, 250=3.52%, 500=0.07% cpu : usr=0.07%, sys=5.02%, ctx=6616, 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=179227: Wed Sep 9 04:22:13 2026 read: IOPS=13, BW=52.6KiB/s (53.8kB/s)(5940KiB/112979msec) clat (usec): min=39, max=255724, avg=42150.65, stdev=26473.15 lat (usec): min=40, max=255725, avg=42155.04, stdev=26473.92 clat percentiles (usec): | 1.00th=[ 58], 5.00th=[ 12649], 10.00th=[ 16909], 20.00th=[ 22152], | 30.00th=[ 27132], 40.00th=[ 31851], 50.00th=[ 37487], 60.00th=[ 42206], | 70.00th=[ 49546], 80.00th=[ 58459], 90.00th=[ 74974], 95.00th=[ 87557], | 99.00th=[143655], 99.50th=[162530], 99.90th=[231736], 99.95th=[254804], | 99.99th=[254804] bw ( KiB/s): min= 6, max= 103, per=25.09%, avg=52.19, stdev=18.51, samples=222 iops : min= 1, max= 25, avg=12.39, stdev= 4.65, samples=222 write: IOPS=14, BW=56.2KiB/s (57.5kB/s)(6348KiB/112979msec); 0 zone resets clat (usec): min=851, max=235292, avg=31641.58, stdev=32240.55 lat (usec): min=852, max=235295, avg=31648.24, stdev=32238.31 clat percentiles (usec): | 1.00th=[ 1074], 5.00th=[ 1205], 10.00th=[ 1631], 20.00th=[ 3294], | 30.00th=[ 6652], 40.00th=[ 15008], 50.00th=[ 23200], 60.00th=[ 31327], | 70.00th=[ 41157], 80.00th=[ 55313], 90.00th=[ 74974], 95.00th=[ 95945], | 99.00th=[139461], 99.50th=[156238], 99.90th=[229639], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 8, max= 120, per=25.44%, avg=55.46, stdev=22.81, samples=223 iops : min= 2, max= 30, avg=13.22, stdev= 5.73, samples=223 lat (usec) : 50=0.20%, 100=0.94%, 250=0.20%, 750=0.07%, 1000=0.10% lat (msec) : 2=6.77%, 4=4.72%, 10=6.28%, 20=11.91%, 50=42.51% lat (msec) : 100=22.69%, 250=3.58%, 500=0.03% cpu : usr=0.06%, sys=5.12%, ctx=6558, 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=179228: Wed Sep 9 04:22:13 2026 read: IOPS=13, BW=52.3KiB/s (53.6kB/s)(6028KiB/115168msec) clat (usec): min=41, max=243254, avg=42402.91, stdev=27488.44 lat (usec): min=41, max=243255, avg=42404.50, stdev=27488.04 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11600], 10.00th=[ 15533], 20.00th=[ 21627], | 30.00th=[ 26608], 40.00th=[ 31327], 50.00th=[ 36963], 60.00th=[ 42206], | 70.00th=[ 49546], 80.00th=[ 60031], 90.00th=[ 77071], 95.00th=[ 93848], | 99.00th=[127402], 99.50th=[168821], 99.90th=[229639], 99.95th=[242222], | 99.99th=[242222] bw ( KiB/s): min= 7, max= 119, per=24.89%, avg=51.77, stdev=19.61, samples=228 iops : min= 1, max= 29, avg=12.29, stdev= 4.90, samples=228 write: IOPS=13, BW=54.4KiB/s (55.7kB/s)(6260KiB/115168msec); 0 zone resets clat (usec): min=929, max=277981, avg=32632.59, stdev=33935.48 lat (usec): min=930, max=277984, avg=32637.93, stdev=33937.37 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1205], 10.00th=[ 1549], 20.00th=[ 3752], | 30.00th=[ 7439], 40.00th=[ 16188], 50.00th=[ 23725], 60.00th=[ 31851], | 70.00th=[ 41681], 80.00th=[ 55313], 90.00th=[ 76022], 95.00th=[ 96994], | 99.00th=[147850], 99.50th=[166724], 99.90th=[252707], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 135, per=24.64%, avg=53.71, stdev=22.60, samples=228 iops : min= 1, max= 33, avg=12.77, stdev= 5.69, samples=228 lat (usec) : 50=0.13%, 100=1.14%, 250=0.23%, 500=0.07%, 1000=0.20% lat (msec) : 2=6.25%, 4=4.49%, 10=6.74%, 20=12.01%, 50=42.22% lat (msec) : 100=22.10%, 250=4.36%, 500=0.07% cpu : usr=0.07%, sys=5.16%, ctx=6820, 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=179229: Wed Sep 9 04:22:13 2026 read: IOPS=13, BW=54.2KiB/s (55.5kB/s)(6052KiB/111684msec) clat (usec): min=35, max=301829, avg=40979.23, stdev=26685.21 lat (usec): min=36, max=301830, avg=40980.42, stdev=26685.20 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 10290], 10.00th=[ 16450], 20.00th=[ 20841], | 30.00th=[ 25560], 40.00th=[ 30278], 50.00th=[ 35390], 60.00th=[ 41681], | 70.00th=[ 48497], 80.00th=[ 58459], 90.00th=[ 72877], 95.00th=[ 88605], | 99.00th=[132645], 99.50th=[152044], 99.90th=[204473], 99.95th=[299893], | 99.99th=[299893] bw ( KiB/s): min= 7, max= 111, per=25.82%, avg=53.71, stdev=18.67, samples=221 iops : min= 1, max= 27, avg=12.77, stdev= 4.66, samples=221 write: IOPS=13, BW=55.8KiB/s (57.2kB/s)(6236KiB/111684msec); 0 zone resets clat (usec): min=874, max=278652, avg=31783.06, stdev=33065.90 lat (usec): min=874, max=278654, avg=31787.04, stdev=33065.23 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1188], 10.00th=[ 1516], 20.00th=[ 3261], | 30.00th=[ 6259], 40.00th=[ 13960], 50.00th=[ 22414], 60.00th=[ 30540], | 70.00th=[ 42206], 80.00th=[ 56886], 90.00th=[ 78119], 95.00th=[ 95945], | 99.00th=[143655], 99.50th=[162530], 99.90th=[193987], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 15, max= 143, per=25.62%, avg=55.85, stdev=23.02, samples=219 iops : min= 3, max= 35, avg=13.31, stdev= 5.81, samples=219 lat (usec) : 50=0.42%, 100=1.33%, 250=0.10%, 1000=0.20% lat (msec) : 2=6.64%, 4=5.05%, 10=7.03%, 20=12.17%, 50=41.11% lat (msec) : 100=22.23%, 250=3.65%, 500=0.07% cpu : usr=0.07%, sys=5.14%, ctx=6565, 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=208KiB/s (213kB/s), 52.3KiB/s-54.2KiB/s (53.6kB/s-55.5kB/s), io=23.4MiB (24.6MB), run=111684-115168msec WRITE: bw=218KiB/s (224kB/s), 54.4KiB/s-56.2KiB/s (55.7kB/s-57.5kB/s), io=24.6MiB (25.7MB), run=111684-115168msec fio: pid=179222, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 0: pid=179221: Wed Sep 9 04:22:44 2026 read: IOPS=10, BW=40.7KiB/s (41.7kB/s)(5992KiB/147311msec) clat (msec): min=5, max=764, avg=39.00, stdev=39.91 lat (msec): min=5, max=764, avg=39.00, stdev=39.91 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 15], | 30.00th=[ 18], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 43], 80.00th=[ 58], 90.00th=[ 89], 95.00th=[ 113], | 99.00th=[ 174], 99.50th=[ 184], 99.90th=[ 300], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 167, per=27.69%, avg=40.70, stdev=29.51, samples=287 iops : min= 1, max= 41, avg= 9.53, stdev= 7.43, samples=287 write: IOPS=10, BW=42.7KiB/s (43.8kB/s)(6296KiB/147311msec); 0 zone resets clat (msec): min=11, max=317, avg=56.24, stdev=41.88 lat (msec): min=11, max=317, avg=56.24, stdev=41.88 clat percentiles (msec): | 1.00th=[ 15], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 41], 60.00th=[ 51], | 70.00th=[ 67], 80.00th=[ 85], 90.00th=[ 110], 95.00th=[ 140], | 99.00th=[ 215], 99.50th=[ 259], 99.90th=[ 296], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 7, max= 128, per=27.38%, avg=42.43, stdev=27.86, samples=289 iops : min= 1, max= 32, avg= 9.96, stdev= 7.03, samples=289 lat (msec) : 10=3.61%, 20=20.12%, 50=43.59%, 100=22.43%, 250=9.90% lat (msec) : 500=0.33%, 1000=0.03% cpu : usr=0.06%, sys=1.88%, ctx=4964, 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= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=179222: Wed Sep 9 04:22:44 2026 read: IOPS=7, BW=30.5KiB/s (31.3kB/s)(3732KiB/122210msec) clat (msec): min=4, max=678, avg=51.41, stdev=43.06 lat (msec): min=4, max=678, avg=51.42, stdev=43.06 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 22], | 30.00th=[ 27], 40.00th=[ 32], 50.00th=[ 39], 60.00th=[ 47], | 70.00th=[ 58], 80.00th=[ 78], 90.00th=[ 107], 95.00th=[ 129], | 99.00th=[ 182], 99.50th=[ 201], 99.90th=[ 676], 99.95th=[ 676], | 99.99th=[ 676] bw ( KiB/s): min= 7, max= 112, per=21.34%, avg=31.37, stdev=18.02, samples=230 iops : min= 1, max= 28, avg= 7.17, stdev= 4.53, samples=230 write: IOPS=8, BW=33.2KiB/s (33.0kB/s)(4056KiB/122210msec); 0 zone resets clat (msec): min=12, max=360, avg=72.94, stdev=45.05 lat (msec): min=12, max=360, avg=72.95, stdev=45.05 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 38], | 30.00th=[ 45], 40.00th=[ 54], 50.00th=[ 62], 60.00th=[ 73], | 70.00th=[ 86], 80.00th=[ 104], 90.00th=[ 128], 95.00th=[ 157], | 99.00th=[ 253], 99.50th=[ 275], 99.90th=[ 342], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 7, max= 111, per=21.25%, avg=32.94, stdev=16.56, samples=238 iops : min= 1, max= 27, avg= 7.57, stdev= 4.18, samples=238 lat (msec) : 10=0.56%, 20=8.32%, 50=40.09%, 100=34.09%, 250=16.27% lat (msec) : 500=0.56%, 750=0.05% cpu : usr=0.04%, sys=1.50%, ctx=2620, 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=934,1014,0,0 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=179223: Wed Sep 9 04:22:44 2026 read: IOPS=10, BW=40.0KiB/s (41.0kB/s)(6028KiB/147114msec) clat (msec): min=4, max=304, avg=37.19, stdev=33.75 lat (msec): min=4, max=304, avg=37.20, stdev=33.75 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 10], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 25], 60.00th=[ 32], | 70.00th=[ 40], 80.00th=[ 55], 90.00th=[ 86], 95.00th=[ 112], | 99.00th=[ 155], 99.50th=[ 176], 99.90th=[ 239], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 7, max= 158, per=28.24%, avg=41.52, stdev=28.87, samples=284 iops : min= 1, max= 39, avg= 9.73, stdev= 7.28, samples=284 write: IOPS=10, BW=42.6KiB/s (43.6kB/s)(6260KiB/147114msec); 0 zone resets clat (msec): min=10, max=691, avg=57.97, stdev=45.91 lat (msec): min=10, max=691, avg=57.98, stdev=45.91 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 35], 50.00th=[ 42], 60.00th=[ 55], | 70.00th=[ 68], 80.00th=[ 86], 90.00th=[ 116], 95.00th=[ 142], | 99.00th=[ 230], 99.50th=[ 275], 99.90th=[ 372], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 134, per=27.33%, avg=42.36, stdev=28.26, samples=289 iops : min= 1, max= 33, avg= 9.94, stdev= 7.12, samples=289 lat (msec) : 10=3.81%, 20=20.28%, 50=42.71%, 100=22.53%, 250=10.32% lat (msec) : 500=0.33%, 750=0.03% cpu : usr=0.06%, sys=1.85%, ctx=4865, 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=179224: Wed Sep 9 04:22:44 2026 read: IOPS=10, BW=41.1KiB/s (42.1kB/s)(6052KiB/147348msec) clat (msec): min=5, max=272, avg=38.74, stdev=36.69 lat (msec): min=5, max=272, avg=38.74, stdev=36.69 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 14], | 30.00th=[ 17], 40.00th=[ 21], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 41], 80.00th=[ 57], 90.00th=[ 90], 95.00th=[ 120], | 99.00th=[ 182], 99.50th=[ 199], 99.90th=[ 257], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 7, max= 136, per=28.17%, avg=41.40, stdev=28.87, samples=285 iops : min= 1, max= 34, avg= 9.71, stdev= 7.27, samples=285 write: IOPS=10, BW=42.3KiB/s (43.3kB/s)(6236KiB/147348msec); 0 zone resets clat (msec): min=7, max=690, avg=56.73, stdev=44.20 lat (msec): min=7, max=690, avg=56.73, stdev=44.20 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 25], | 30.00th=[ 30], 40.00th=[ 36], 50.00th=[ 43], 60.00th=[ 54], | 70.00th=[ 68], 80.00th=[ 88], 90.00th=[ 109], 95.00th=[ 132], | 99.00th=[ 209], 99.50th=[ 266], 99.90th=[ 330], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 7, max= 135, per=27.30%, avg=42.32, stdev=27.86, samples=287 iops : min= 1, max= 33, avg= 9.93, stdev= 7.02, samples=287 lat (msec) : 10=3.91%, 20=20.25%, 50=42.97%, 100=22.33%, 250=10.16% lat (msec) : 500=0.36%, 750=0.03% cpu : usr=0.05%, sys=1.92%, ctx=4907, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=148KiB/s (152kB/s), 30.5KiB/s-41.1KiB/s (31.3kB/s-42.1kB/s), io=21.3MiB (22.3MB), run=122210-147348msec WRITE: bw=155KiB/s (159kB/s), 33.2KiB/s-42.7KiB/s (33.0kB/s-43.8kB/s), io=22.3MiB (23.4MB), run=122210-147348msec 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=179269: Wed Sep 9 04:23:32 2026 read: IOPS=10, BW=163KiB/s (167kB/s)(5920KiB/36235msec) clat (usec): min=40, max=195739, avg=50840.41, stdev=32906.69 lat (usec): min=40, max=195740, avg=50850.88, stdev=32903.30 clat percentiles (usec): | 1.00th=[ 54], 5.00th=[ 66], 10.00th=[ 16188], 20.00th=[ 26346], | 30.00th=[ 32375], 40.00th=[ 39060], 50.00th=[ 46400], 60.00th=[ 52691], | 70.00th=[ 62653], 80.00th=[ 76022], 90.00th=[ 88605], 95.00th=[113771], | 99.00th=[166724], 99.50th=[181404], 99.90th=[196084], 99.95th=[196084], | 99.99th=[196084] bw ( KiB/s): min= 31, max= 316, per=24.42%, avg=161.39, stdev=58.30, samples=71 iops : min= 1, max= 19, avg= 9.31, stdev= 3.72, samples=71 write: IOPS=10, BW=176KiB/s (180kB/s)(6368KiB/36235msec); 0 zone resets clat (usec): min=1343, max=197604, avg=43645.51, stdev=39356.23 lat (usec): min=1344, max=197608, avg=43653.51, stdev=39355.00 clat percentiles (usec): | 1.00th=[ 1598], 5.00th=[ 2704], 10.00th=[ 4047], 20.00th=[ 6915], | 30.00th=[ 12256], 40.00th=[ 24511], 50.00th=[ 34341], 60.00th=[ 44303], | 70.00th=[ 55837], 80.00th=[ 78119], 90.00th=[105382], 95.00th=[125305], | 99.00th=[154141], 99.50th=[189793], 99.90th=[198181], 99.95th=[198181], | 99.99th=[198181] bw ( KiB/s): min= 30, max= 411, per=25.13%, avg=174.63, stdev=75.13, samples=71 iops : min= 1, max= 25, avg=10.14, stdev= 4.78, samples=71 lat (usec) : 50=0.26%, 100=3.65%, 250=0.39%, 500=0.13%, 750=0.13% lat (msec) : 2=1.95%, 4=2.99%, 10=7.94%, 20=7.68%, 50=34.90% lat (msec) : 100=30.21%, 250=9.77% cpu : usr=0.06%, sys=5.02%, ctx=1800, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179270: Wed Sep 9 04:23:32 2026 read: IOPS=9, BW=159KiB/s (163kB/s)(5744KiB/36165msec) clat (usec): min=52, max=235463, avg=54471.40, stdev=37905.75 lat (usec): min=54, max=235464, avg=54472.88, stdev=37905.60 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 77], 10.00th=[ 17957], 20.00th=[ 26870], | 30.00th=[ 31327], 40.00th=[ 39060], 50.00th=[ 45876], 60.00th=[ 56361], | 70.00th=[ 66847], 80.00th=[ 79168], 90.00th=[101188], 95.00th=[124257], | 99.00th=[187696], 99.50th=[208667], 99.90th=[235930], 99.95th=[235930], | 99.99th=[235930] bw ( KiB/s): min= 50, max= 285, per=23.98%, avg=158.49, stdev=54.34, samples=71 iops : min= 3, max= 17, avg= 9.13, stdev= 3.38, samples=71 write: IOPS=11, BW=181KiB/s (185kB/s)(6544KiB/36165msec); 0 zone resets clat (usec): min=1445, max=277895, avg=40447.10, stdev=40528.60 lat (usec): min=1447, max=277898, avg=40451.66, stdev=40528.31 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2638], 10.00th=[ 3523], 20.00th=[ 6194], | 30.00th=[ 10159], 40.00th=[ 17957], 50.00th=[ 28705], 60.00th=[ 38011], | 70.00th=[ 50070], 80.00th=[ 74974], 90.00th=[ 99091], 95.00th=[124257], | 99.00th=[162530], 99.50th=[177210], 99.90th=[278922], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 31, max= 382, per=25.95%, avg=180.34, stdev=78.75, samples=71 iops : min= 1, max= 23, avg=10.49, stdev= 4.98, samples=71 lat (usec) : 100=3.12%, 250=0.39%, 500=0.13% lat (msec) : 2=1.56%, 4=4.95%, 10=9.24%, 20=8.46%, 50=34.77% lat (msec) : 100=27.47%, 250=9.77%, 500=0.13% cpu : usr=0.04%, sys=4.65%, ctx=1761, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179271: Wed Sep 9 04:23:32 2026 read: IOPS=10, BW=173KiB/s (178kB/s)(6256KiB/36088msec) clat (usec): min=40, max=229194, avg=51778.90, stdev=34658.08 lat (usec): min=40, max=229195, avg=51785.60, stdev=34673.19 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 74], 10.00th=[ 14877], 20.00th=[ 27132], | 30.00th=[ 33424], 40.00th=[ 38536], 50.00th=[ 45876], 60.00th=[ 55313], | 70.00th=[ 62653], 80.00th=[ 71828], 90.00th=[ 94897], 95.00th=[117965], | 99.00th=[181404], 99.50th=[191890], 99.90th=[229639], 99.95th=[229639], | 99.99th=[229639] bw ( KiB/s): min= 31, max= 414, per=26.22%, avg=173.32, stdev=74.21, samples=71 iops : min= 1, max= 25, avg=10.06, stdev= 4.66, samples=71 write: IOPS=10, BW=167KiB/s (171kB/s)(6032KiB/36088msec); 0 zone resets clat (usec): min=1463, max=203968, avg=41830.69, stdev=38664.76 lat (usec): min=1466, max=203972, avg=41834.07, stdev=38664.16 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2835], 10.00th=[ 4015], 20.00th=[ 7308], | 30.00th=[ 13173], 40.00th=[ 22676], 50.00th=[ 32113], 60.00th=[ 42206], | 70.00th=[ 50594], 80.00th=[ 68682], 90.00th=[ 98042], 95.00th=[116917], | 99.00th=[170918], 99.50th=[196084], 99.90th=[204473], 99.95th=[204473], | 99.99th=[204473] bw ( KiB/s): min= 31, max= 318, per=23.76%, avg=165.10, stdev=61.43, samples=71 iops : min= 1, max= 19, avg= 9.54, stdev= 3.89, samples=71 lat (usec) : 50=0.13%, 100=3.39%, 250=0.26%, 500=0.26%, 750=0.13% lat (msec) : 2=1.69%, 4=3.39%, 10=7.81%, 20=7.16%, 50=37.63% lat (msec) : 100=29.30%, 250=8.85% cpu : usr=0.07%, sys=4.67%, ctx=1846, 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=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=179272: Wed Sep 9 04:23:32 2026 read: IOPS=10, BW=170KiB/s (174kB/s)(6032KiB/35557msec) clat (usec): min=38, max=190347, avg=50089.73, stdev=35336.15 lat (usec): min=38, max=190348, avg=50091.12, stdev=35336.48 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 62], 10.00th=[ 76], 20.00th=[ 23462], | 30.00th=[ 30802], 40.00th=[ 39584], 50.00th=[ 47449], 60.00th=[ 55313], | 70.00th=[ 64226], 80.00th=[ 77071], 90.00th=[ 94897], 95.00th=[113771], | 99.00th=[162530], 99.50th=[170918], 99.90th=[189793], 99.95th=[189793], | 99.99th=[189793] bw ( KiB/s): min= 31, max= 384, per=25.55%, avg=168.91, stdev=78.31, samples=70 iops : min= 1, max= 24, avg= 9.79, stdev= 4.98, samples=70 write: IOPS=10, BW=176KiB/s (180kB/s)(6256KiB/35557msec); 0 zone resets clat (usec): min=1424, max=259128, avg=42495.47, stdev=40989.17 lat (usec): min=1424, max=259141, avg=42508.03, stdev=40989.16 clat percentiles (usec): | 1.00th=[ 1565], 5.00th=[ 2147], 10.00th=[ 3589], 20.00th=[ 7046], | 30.00th=[ 12780], 40.00th=[ 17957], 50.00th=[ 29492], 60.00th=[ 42206], | 70.00th=[ 57410], 80.00th=[ 74974], 90.00th=[100140], 95.00th=[114820], | 99.00th=[177210], 99.50th=[206570], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 30, max= 345, per=25.28%, avg=175.69, stdev=77.09, samples=70 iops : min= 1, max= 21, avg=10.21, stdev= 4.88, samples=70 lat (usec) : 50=0.52%, 100=5.73%, 250=0.78%, 500=0.39% lat (msec) : 2=2.34%, 4=3.26%, 10=8.46%, 20=8.07%, 50=30.08% lat (msec) : 100=32.03%, 250=8.20%, 500=0.13% cpu : usr=0.06%, sys=4.71%, ctx=1672, 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=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=661KiB/s (677kB/s), 159KiB/s-173KiB/s (163kB/s-178kB/s), io=23.4MiB (24.5MB), run=35557-36235msec WRITE: bw=695KiB/s (712kB/s), 167KiB/s-181KiB/s (171kB/s-185kB/s), io=24.6MiB (25.8MB), run=35557-36235msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179264: Wed Sep 9 04:23:46 2026 read: IOPS=7, BW=118KiB/s (121kB/s)(5920KiB/50255msec) clat (msec): min=12, max=274, avg=56.57, stdev=41.71 lat (msec): min=12, max=274, avg=56.57, stdev=41.71 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 18], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 34], 40.00th=[ 39], 50.00th=[ 44], 60.00th=[ 52], | 70.00th=[ 62], 80.00th=[ 73], 90.00th=[ 114], 95.00th=[ 148], | 99.00th=[ 213], 99.50th=[ 251], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 415, per=25.11%, avg=119.55, stdev=71.16, samples=97 iops : min= 1, max= 25, avg= 6.65, stdev= 4.53, samples=97 write: IOPS=7, BW=127KiB/s (130kB/s)(6368KiB/50255msec); 0 zone resets clat (msec): min=14, max=287, avg=73.28, stdev=47.84 lat (msec): min=14, max=287, avg=73.31, stdev=47.84 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 25], 10.00th=[ 29], 20.00th=[ 36], | 30.00th=[ 42], 40.00th=[ 48], 50.00th=[ 56], 60.00th=[ 68], | 70.00th=[ 86], 80.00th=[ 112], 90.00th=[ 140], 95.00th=[ 169], | 99.00th=[ 236], 99.50th=[ 253], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 31, max= 315, per=25.37%, avg=127.11, stdev=63.74, samples=98 iops : min= 1, max= 19, avg= 7.13, stdev= 4.04, samples=98 lat (msec) : 20=4.30%, 50=45.96%, 100=30.86%, 250=18.49%, 500=0.39% cpu : usr=0.05%, sys=1.62%, ctx=1298, 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=179265: Wed Sep 9 04:23:46 2026 read: IOPS=7, BW=115KiB/s (118kB/s)(5744KiB/49972msec) clat (msec): min=6, max=280, avg=54.70, stdev=40.23 lat (msec): min=6, max=280, avg=54.70, stdev=40.23 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 16], 10.00th=[ 21], 20.00th=[ 27], | 30.00th=[ 33], 40.00th=[ 38], 50.00th=[ 43], 60.00th=[ 48], | 70.00th=[ 57], 80.00th=[ 74], 90.00th=[ 111], 95.00th=[ 148], | 99.00th=[ 197], 99.50th=[ 234], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 28, max= 352, per=25.22%, avg=120.04, stdev=69.83, samples=93 iops : min= 1, max= 22, avg= 6.68, stdev= 4.45, samples=93 write: IOPS=8, BW=131KiB/s (134kB/s)(6544KiB/49972msec); 0 zone resets clat (msec): min=16, max=397, avg=73.80, stdev=50.34 lat (msec): min=16, max=397, avg=73.81, stdev=50.34 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 28], 10.00th=[ 32], 20.00th=[ 37], | 30.00th=[ 43], 40.00th=[ 49], 50.00th=[ 57], 60.00th=[ 68], | 70.00th=[ 84], 80.00th=[ 107], 90.00th=[ 144], 95.00th=[ 171], | 99.00th=[ 226], 99.50th=[ 259], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 30, max= 345, per=25.87%, avg=129.60, stdev=68.40, samples=98 iops : min= 1, max= 21, avg= 7.30, stdev= 4.33, samples=98 lat (msec) : 10=0.52%, 20=4.30%, 50=47.01%, 100=30.34%, 250=17.32% lat (msec) : 500=0.52% cpu : usr=0.04%, sys=1.74%, ctx=1300, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179266: Wed Sep 9 04:23:46 2026 read: IOPS=7, BW=126KiB/s (129kB/s)(6256KiB/49794msec) clat (msec): min=8, max=358, avg=55.98, stdev=42.82 lat (msec): min=8, max=358, avg=55.98, stdev=42.82 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 17], 10.00th=[ 21], 20.00th=[ 26], | 30.00th=[ 32], 40.00th=[ 39], 50.00th=[ 43], 60.00th=[ 51], | 70.00th=[ 61], 80.00th=[ 77], 90.00th=[ 117], 95.00th=[ 146], | 99.00th=[ 224], 99.50th=[ 275], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 30, max= 384, per=26.35%, avg=125.41, stdev=74.20, samples=98 iops : min= 1, max= 24, avg= 7.03, stdev= 4.73, samples=98 write: IOPS=7, BW=121KiB/s (124kB/s)(6032KiB/49794msec); 0 zone resets clat (msec): min=17, max=258, avg=73.83, stdev=44.53 lat (msec): min=17, max=258, avg=73.84, stdev=44.54 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 29], 10.00th=[ 34], 20.00th=[ 40], | 30.00th=[ 45], 40.00th=[ 52], 50.00th=[ 60], 60.00th=[ 72], | 70.00th=[ 86], 80.00th=[ 105], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 232], 99.50th=[ 253], 99.90th=[ 259], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 30, max= 283, per=24.19%, avg=121.19, stdev=56.14, samples=97 iops : min= 1, max= 17, avg= 6.76, stdev= 3.56, samples=97 lat (msec) : 10=0.39%, 20=5.08%, 50=43.62%, 100=33.59%, 250=16.67% lat (msec) : 500=0.65% cpu : usr=0.04%, sys=1.67%, ctx=1258, 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=179267: Wed Sep 9 04:23:46 2026 read: IOPS=7, BW=121KiB/s (124kB/s)(6032KiB/49929msec) clat (msec): min=8, max=225, avg=53.58, stdev=37.96 lat (msec): min=8, max=225, avg=53.59, stdev=37.97 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 15], 10.00th=[ 20], 20.00th=[ 27], | 30.00th=[ 32], 40.00th=[ 37], 50.00th=[ 42], 60.00th=[ 49], | 70.00th=[ 57], 80.00th=[ 77], 90.00th=[ 107], 95.00th=[ 136], | 99.00th=[ 186], 99.50th=[ 203], 99.90th=[ 226], 99.95th=[ 226], | 99.99th=[ 226] bw ( KiB/s): min= 30, max= 288, per=26.08%, avg=124.14, stdev=63.72, samples=94 iops : min= 1, max= 18, avg= 6.94, stdev= 4.05, samples=94 write: IOPS=7, BW=125KiB/s (128kB/s)(6256KiB/49929msec); 0 zone resets clat (msec): min=17, max=394, avg=75.71, stdev=50.79 lat (msec): min=17, max=394, avg=75.72, stdev=50.79 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 37], | 30.00th=[ 43], 40.00th=[ 51], 50.00th=[ 58], 60.00th=[ 75], | 70.00th=[ 89], 80.00th=[ 112], 90.00th=[ 144], 95.00th=[ 169], | 99.00th=[ 236], 99.50th=[ 355], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 31, max= 352, per=24.85%, avg=124.48, stdev=63.82, samples=98 iops : min= 1, max= 22, avg= 6.97, stdev= 4.06, samples=98 lat (msec) : 10=0.52%, 20=4.95%, 50=45.44%, 100=31.38%, 250=17.32% lat (msec) : 500=0.39% cpu : usr=0.03%, sys=1.76%, ctx=1308, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=477KiB/s (488kB/s), 115KiB/s-126KiB/s (118kB/s-129kB/s), io=23.4MiB (24.5MB), run=49794-50255msec WRITE: bw=501KiB/s (513kB/s), 121KiB/s-131KiB/s (124kB/s-134kB/s), io=24.6MiB (25.8MB), run=49794-50255msec 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=179287: Wed Sep 9 04:24:02 2026 read: IOPS=1, BW=1953KiB/s (1999kB/s)(7168KiB/3671msec) clat (msec): min=2, max=547, avg=242.39, stdev=159.30 lat (msec): min=2, max=547, avg=242.39, stdev=159.30 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 215], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 228], 60.00th=[ 230], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 1780, max= 2942, per=52.48%, avg=2134.80, stdev=462.29, samples=5 iops : min= 1, max= 2, avg= 1.20, stdev= 0.45, samples=5 write: IOPS=1, BW=1395KiB/s (1428kB/s)(5120KiB/3671msec); 0 zone resets clat (msec): min=299, max=468, avg=385.41, stdev=80.55 lat (msec): min=299, max=469, avg=385.82, stdev=80.55 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 317], 40.00th=[ 317], 50.00th=[ 376], 60.00th=[ 376], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 468], 95.00th=[ 468], | 99.00th=[ 468], 99.50th=[ 468], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 1780, max= 2019, per=33.60%, avg=1913.75, stdev=100.57, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 4=8.33%, 250=33.33%, 500=50.00%, 750=8.33% cpu : usr=0.00%, sys=16.21%, ctx=162, 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=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=179288: Wed Sep 9 04:24:02 2026 read: IOPS=0, BW=407KiB/s (417kB/s)(2048KiB/5034msec) clat (usec): min=512, max=262961, avg=131737.18, stdev=185579.34 lat (usec): min=513, max=262964, avg=131738.81, stdev=185580.57 clat percentiles (usec): | 1.00th=[ 515], 5.00th=[ 515], 10.00th=[ 515], 20.00th=[ 515], | 30.00th=[ 515], 40.00th=[ 515], 50.00th=[ 515], 60.00th=[263193], | 70.00th=[263193], 80.00th=[263193], 90.00th=[263193], 95.00th=[263193], | 99.00th=[263193], 99.50th=[263193], 99.90th=[263193], 99.95th=[263193], | 99.99th=[263193] bw ( KiB/s): min= 1497, max= 1868, per=41.36%, avg=1682.50, stdev=262.34, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2034KiB/s (2083kB/s)(10.0MiB/5034msec); 0 zone resets clat (msec): min=147, max=1070, avg=447.30, stdev=317.47 lat (msec): min=147, max=1070, avg=447.57, stdev=317.37 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 148], 10.00th=[ 148], 20.00th=[ 159], | 30.00th=[ 165], 40.00th=[ 203], 50.00th=[ 363], 60.00th=[ 422], | 70.00th=[ 464], 80.00th=[ 642], 90.00th=[ 852], 95.00th=[ 1070], | 99.00th=[ 1070], 99.50th=[ 1070], 99.90th=[ 1070], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 1906, max= 4000, per=51.21%, avg=2916.33, stdev=1050.53, samples=6 iops : min= 1, max= 3, avg= 2.00, stdev= 1.10, samples=6 lat (usec) : 750=8.33% lat (msec) : 250=33.33%, 500=33.33%, 750=8.33%, 1000=8.33%, 2000=8.33% cpu : usr=0.06%, sys=11.86%, 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=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=179289: Wed Sep 9 04:24:02 2026 read: IOPS=1, BW=1626KiB/s (1665kB/s)(6144KiB/3779msec) clat (msec): min=2, max=525, avg=257.54, stdev=173.78 lat (msec): min=2, max=525, avg=257.54, stdev=173.78 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 155], | 30.00th=[ 155], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 296], | 70.00th=[ 300], 80.00th=[ 300], 90.00th=[ 527], 95.00th=[ 527], | 99.00th=[ 527], 99.50th=[ 527], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 1950, max= 3813, per=76.40%, avg=3108.00, stdev=1010.74, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1626KiB/s (1665kB/s)(6144KiB/3779msec); 0 zone resets clat (msec): min=214, max=445, avg=349.43, stdev=107.20 lat (msec): min=215, max=445, avg=349.56, stdev=107.14 clat percentiles (msec): | 1.00th=[ 215], 5.00th=[ 215], 10.00th=[ 215], 20.00th=[ 224], | 30.00th=[ 224], 40.00th=[ 342], 50.00th=[ 342], 60.00th=[ 435], | 70.00th=[ 435], 80.00th=[ 435], 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= 1560, max= 2027, per=32.79%, avg=1867.20, stdev=198.38, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 4=8.33%, 250=25.00%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=12.18%, ctx=208, 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=179290: Wed Sep 9 04:24:02 2026 read: IOPS=1, BW=1162KiB/s (1189kB/s)(5120KiB/4408msec) clat (usec): min=1614, max=631002, avg=242113.78, stdev=265844.86 lat (usec): min=1615, max=631003, avg=242115.07, stdev=265844.74 clat percentiles (usec): | 1.00th=[ 1614], 5.00th=[ 1614], 10.00th=[ 1614], 20.00th=[ 1614], | 30.00th=[ 5735], 40.00th=[ 5735], 50.00th=[202376], 60.00th=[202376], | 70.00th=[371196], 80.00th=[371196], 90.00th=[633340], 95.00th=[633340], | 99.00th=[633340], 99.50th=[633340], 99.90th=[633340], 99.95th=[633340], | 99.99th=[633340] bw ( KiB/s): min= 1950, max= 5342, per=89.63%, avg=3646.00, stdev=2398.51, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1626KiB/s (1665kB/s)(7168KiB/4408msec); 0 zone resets clat (msec): min=227, max=612, avg=434.91, stdev=144.93 lat (msec): min=227, max=612, avg=435.00, stdev=144.95 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 264], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 485], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 1484, max= 3813, per=45.84%, avg=2610.60, stdev=1084.73, samples=5 iops : min= 1, max= 3, avg= 1.80, stdev= 1.10, samples=5 lat (msec) : 2=8.33%, 10=8.33%, 250=16.67%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=10.60%, ctx=167, 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=4068KiB/s (4166kB/s), 407KiB/s-1953KiB/s (417kB/s-1999kB/s), io=20.0MiB (20.0MB), run=3671-5034msec WRITE: bw=5696KiB/s (5832kB/s), 1395KiB/s-2034KiB/s (1428kB/s-2083kB/s), io=28.0MiB (29.4MB), run=3671-5034msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179292: Wed Sep 9 04:24:03 2026 read: IOPS=1, BW=1408KiB/s (1441kB/s)(7168KiB/5092msec) clat (msec): min=107, max=955, avg=349.12, stdev=294.79 lat (msec): min=107, max=955, avg=349.12, stdev=294.79 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 182], | 30.00th=[ 184], 40.00th=[ 184], 50.00th=[ 226], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 498], 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= 1996, max= 6035, per=89.68%, avg=3346.00, stdev=2328.75, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=0, BW=1005KiB/s (1030kB/s)(5120KiB/5092msec); 0 zone resets clat (msec): min=143, max=1033, avg=498.69, stdev=401.41 lat (msec): min=143, max=1034, avg=498.87, stdev=401.45 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 203], 40.00th=[ 203], 50.00th=[ 296], 60.00th=[ 296], | 70.00th=[ 818], 80.00th=[ 818], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 2039, max= 3930, per=51.15%, avg=2672.33, stdev=1089.18, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 250=50.00%, 500=25.00%, 1000=16.67%, 2000=8.33% cpu : usr=0.02%, sys=4.40%, ctx=101, 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=179293: Wed Sep 9 04:24:03 2026 read: IOPS=0, BW=417KiB/s (427kB/s)(2048KiB/4916msec) clat (msec): min=185, max=838, avg=512.25, stdev=461.89 lat (msec): min=185, max=838, avg=512.25, stdev=461.89 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 186], 10.00th=[ 186], 20.00th=[ 186], | 30.00th=[ 186], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 835], | 70.00th=[ 835], 80.00th=[ 835], 90.00th=[ 835], 95.00th=[ 835], | 99.00th=[ 835], 99.50th=[ 835], 99.90th=[ 835], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 2039, max= 2048, per=54.77%, avg=2043.50, stdev= 6.36, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=2, BW=2083KiB/s (2133kB/s)(10.0MiB/4916msec); 0 zone resets clat (msec): min=87, max=1308, avg=371.26, stdev=386.26 lat (msec): min=87, max=1308, avg=371.40, stdev=386.33 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 88], 10.00th=[ 88], 20.00th=[ 123], | 30.00th=[ 144], 40.00th=[ 192], 50.00th=[ 192], 60.00th=[ 241], | 70.00th=[ 288], 80.00th=[ 342], 90.00th=[ 793], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 2007, max= 4096, per=53.92%, avg=2816.60, stdev=1093.80, samples=5 iops : min= 1, max= 4, avg= 2.00, stdev= 1.41, samples=5 lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 1000=16.67%, 2000=8.33% cpu : usr=0.00%, sys=3.87%, ctx=86, 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=179294: Wed Sep 9 04:24:03 2026 read: IOPS=1, BW=1205KiB/s (1234kB/s)(6144KiB/5097msec) clat (msec): min=85, max=793, avg=304.61, stdev=264.25 lat (msec): min=85, max=793, avg=304.61, stdev=264.25 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 86], 10.00th=[ 86], 20.00th=[ 125], | 30.00th=[ 125], 40.00th=[ 171], 50.00th=[ 171], 60.00th=[ 253], | 70.00th=[ 401], 80.00th=[ 401], 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= 1996, max= 4096, per=72.64%, avg=2710.33, stdev=1200.22, samples=3 iops : min= 1, max= 4, avg= 2.00, stdev= 1.73, samples=3 write: IOPS=1, BW=1205KiB/s (1234kB/s)(6144KiB/5097msec); 0 zone resets clat (msec): min=142, max=863, avg=502.07, stdev=314.25 lat (msec): min=142, max=863, avg=502.28, stdev=314.15 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 418], 50.00th=[ 418], 60.00th=[ 701], | 70.00th=[ 743], 80.00th=[ 743], 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= 1965, max= 3886, per=47.56%, avg=2484.50, stdev=935.07, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=8.33%, 250=33.33%, 500=25.00%, 750=16.67%, 1000=16.67% cpu : usr=0.00%, sys=4.73%, ctx=107, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179295: Wed Sep 9 04:24:03 2026 read: IOPS=0, BW=933KiB/s (955kB/s)(5120KiB/5488msec) clat (msec): min=142, max=966, avg=500.13, stdev=338.82 lat (msec): min=142, max=966, avg=500.13, stdev=338.82 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 142], | 30.00th=[ 232], 40.00th=[ 232], 50.00th=[ 460], 60.00th=[ 460], | 70.00th=[ 701], 80.00th=[ 701], 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= 2007, max= 2048, per=54.52%, avg=2034.25, stdev=18.54, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 write: IOPS=1, BW=1306KiB/s (1337kB/s)(7168KiB/5488msec); 0 zone resets clat (msec): min=107, max=949, avg=403.92, stdev=323.61 lat (msec): min=107, max=949, avg=404.06, stdev=323.64 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 108], 10.00th=[ 108], 20.00th=[ 133], | 30.00th=[ 182], 40.00th=[ 182], 50.00th=[ 230], 60.00th=[ 592], | 70.00th=[ 592], 80.00th=[ 642], 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= 1943, max= 4087, per=46.40%, avg=2423.80, stdev=930.58, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 250=50.00%, 500=8.33%, 750=25.00%, 1000=16.67% cpu : usr=0.02%, sys=5.41%, ctx=166, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3732KiB/s (3821kB/s), 417KiB/s-1408KiB/s (427kB/s-1441kB/s), io=20.0MiB (20.0MB), run=4916-5488msec WRITE: bw=5224KiB/s (5350kB/s), 1005KiB/s-2083KiB/s (1030kB/s-2133kB/s), io=28.0MiB (29.4MB), run=4916-5488msec 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=179302: Wed Sep 9 04:24:18 2026 read: IOPS=1, BW=5242KiB/s (5368kB/s)(12.0MiB/2344msec) clat (msec): min=665, max=932, avg=771.08, stdev=142.06 lat (msec): min=665, max=932, avg=771.09, stdev=142.06 clat percentiles (msec): | 1.00th=[ 667], 5.00th=[ 667], 10.00th=[ 667], 20.00th=[ 667], | 30.00th=[ 667], 40.00th=[ 718], 50.00th=[ 718], 60.00th=[ 718], | 70.00th=[ 936], 80.00th=[ 936], 90.00th=[ 936], 95.00th=[ 936], | 99.00th=[ 936], 99.50th=[ 936], 99.90th=[ 936], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7861, max= 8192, per=100.00%, avg=8026.50, stdev=234.05, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=16.39%, ctx=305, 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=179303: Wed Sep 9 04:24:18 2026 read: IOPS=0, BW=1772KiB/s (1814kB/s)(4096KiB/2312msec) clat (nsec): min=499211k, max=499211k, avg=499211297.00, stdev= 0.00 lat (nsec): min=499214k, max=499214k, avg=499214016.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] 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=3543KiB/s (3628kB/s)(8192KiB/2312msec); 0 zone resets clat (msec): min=809, max=941, avg=875.36, stdev=93.69 lat (msec): min=809, max=941, avg=875.76, stdev=93.56 clat percentiles (msec): | 1.00th=[ 810], 5.00th=[ 810], 10.00th=[ 810], 20.00th=[ 810], | 30.00th=[ 810], 40.00th=[ 810], 50.00th=[ 810], 60.00th=[ 944], | 70.00th=[ 944], 80.00th=[ 944], 90.00th=[ 944], 95.00th=[ 944], | 99.00th=[ 944], 99.50th=[ 944], 99.90th=[ 944], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7861, max= 7861, per=68.85%, avg=7861.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 1000=66.67% cpu : usr=0.00%, sys=7.20%, ctx=91, 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=179304: Wed Sep 9 04:24:18 2026 write: IOPS=1, BW=4282KiB/s (4384kB/s)(12.0MiB/2870msec); 0 zone resets clat (msec): min=328, max=1533, avg=918.57, stdev=602.46 lat (msec): min=329, max=1534, avg=919.19, stdev=602.80 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 894], 50.00th=[ 894], 60.00th=[ 894], | 70.00th=[ 1536], 80.00th=[ 1536], 90.00th=[ 1536], 95.00th=[ 1536], | 99.00th=[ 1536], 99.50th=[ 1536], 99.90th=[ 1536], 99.95th=[ 1536], | 99.99th=[ 1536] bw ( KiB/s): min= 7984, max= 8143, per=70.63%, avg=8063.50, stdev=112.43, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=3.21%, ctx=62, 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=179305: Wed Sep 9 04:24:18 2026 write: IOPS=1, BW=5086KiB/s (5208kB/s)(12.0MiB/2416msec); 0 zone resets clat (msec): min=442, max=1137, avg=793.90, stdev=347.51 lat (msec): min=444, max=1140, avg=795.65, stdev=348.20 clat percentiles (msec): | 1.00th=[ 443], 5.00th=[ 443], 10.00th=[ 443], 20.00th=[ 443], | 30.00th=[ 443], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1133], 80.00th=[ 1133], 90.00th=[ 1133], 95.00th=[ 1133], | 99.00th=[ 1133], 99.50th=[ 1133], 99.90th=[ 1133], 99.95th=[ 1133], | 99.99th=[ 1133] bw ( KiB/s): min= 6311, max= 7861, per=62.07%, avg=7086.00, stdev=1096.02, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=5.01%, ctx=54, 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=6990KiB/s (7158kB/s), 1772KiB/s-5242KiB/s (1814kB/s-5368kB/s), io=16.0MiB (16.8MB), run=2312-2344msec WRITE: bw=11.1MiB/s (11.7MB/s), 3543KiB/s-5086KiB/s (3628kB/s-5208kB/s), io=32.0MiB (33.6MB), run=2312-2870msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179306: Wed Sep 9 04:24:18 2026 read: IOPS=1, BW=5483KiB/s (5615kB/s)(12.0MiB/2241msec) clat (msec): min=634, max=886, avg=728.52, stdev=137.35 lat (msec): min=634, max=886, avg=728.52, stdev=137.35 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 667], 50.00th=[ 667], 60.00th=[ 667], | 70.00th=[ 885], 80.00th=[ 885], 90.00th=[ 885], 95.00th=[ 885], | 99.00th=[ 885], 99.50th=[ 885], 99.90th=[ 885], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 8110, max= 8192, per=100.00%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=5.09%, ctx=61, 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=179307: Wed Sep 9 04:24:18 2026 read: IOPS=0, BW=1328KiB/s (1360kB/s)(4096KiB/3084msec) clat (nsec): min=1621.2M, max=1621.2M, avg=1621165375.00, stdev= 0.00 lat (nsec): min=1621.2M, max=1621.2M, avg=1621168086.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 1620], 5.00th=[ 1620], 10.00th=[ 1620], 20.00th=[ 1620], | 30.00th=[ 1620], 40.00th=[ 1620], 50.00th=[ 1620], 60.00th=[ 1620], | 70.00th=[ 1620], 80.00th=[ 1620], 90.00th=[ 1620], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] 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=2656KiB/s (2720kB/s)(8192KiB/3084msec); 0 zone resets clat (msec): min=635, max=655, avg=645.54, stdev=14.14 lat (msec): min=635, max=655, avg=645.88, stdev=14.14 clat percentiles (msec): | 1.00th=[ 634], 5.00th=[ 634], 10.00th=[ 634], 20.00th=[ 634], | 30.00th=[ 634], 40.00th=[ 634], 50.00th=[ 634], 60.00th=[ 659], | 70.00th=[ 659], 80.00th=[ 659], 90.00th=[ 659], 95.00th=[ 659], | 99.00th=[ 659], 99.50th=[ 659], 99.90th=[ 659], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 8110, max= 8110, per=76.33%, avg=8110.00, 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=3.44%, ctx=67, 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=179308: Wed Sep 9 04:24:18 2026 write: IOPS=0, BW=4050KiB/s (4147kB/s)(12.0MiB/3034msec); 0 zone resets clat (msec): min=209, max=1822, avg=943.90, stdev=816.01 lat (msec): min=209, max=1822, avg=944.29, stdev=816.03 clat percentiles (msec): | 1.00th=[ 209], 5.00th=[ 209], 10.00th=[ 209], 20.00th=[ 209], | 30.00th=[ 209], 40.00th=[ 802], 50.00th=[ 802], 60.00th=[ 802], | 70.00th=[ 1821], 80.00th=[ 1821], 90.00th=[ 1821], 95.00th=[ 1821], | 99.00th=[ 1821], 99.50th=[ 1821], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 8192, max= 8192, per=77.10%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.02%, ctx=57, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179309: Wed Sep 9 04:24:18 2026 write: IOPS=1, BW=4447KiB/s (4554kB/s)(12.0MiB/2763msec); 0 zone resets clat (msec): min=267, max=1402, avg=869.65, stdev=570.31 lat (msec): min=268, max=1402, avg=870.01, stdev=570.42 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 936], 50.00th=[ 936], 60.00th=[ 936], | 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= 8110, max= 8110, per=76.33%, avg=8110.00, stdev= 0.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.60%, ctx=72, 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=5313KiB/s (5440kB/s), 1328KiB/s-5483KiB/s (1360kB/s-5615kB/s), io=16.0MiB (16.8MB), run=2241-3084msec WRITE: bw=10.4MiB/s (10.9MB/s), 2656KiB/s-4447KiB/s (2720kB/s-4554kB/s), io=32.0MiB (33.6MB), run=2763-3084msec