== sanity test 398b: DIO and buffer IO race ============== 20:20:58 (1785457258) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 4.82418 s, 10.4 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=145251: Thu Jul 30 20:23:33 2026 read: IOPS=10, BW=43.7KiB/s (44.7kB/s)(5992KiB/137189msec) clat (usec): min=34, max=360751, avg=44473.18, stdev=33584.83 lat (usec): min=34, max=360752, avg=44481.79, stdev=33582.97 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 63], 10.00th=[ 12518], 20.00th=[ 21627], | 30.00th=[ 26870], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 53740], 80.00th=[ 63701], 90.00th=[ 81265], 95.00th=[102237], | 99.00th=[164627], 99.50th=[196084], 99.90th=[341836], 99.95th=[362808], | 99.99th=[362808] bw ( KiB/s): min= 7, max= 111, per=24.98%, avg=43.72, stdev=19.21, samples=266 iops : min= 1, max= 27, avg=10.30, stdev= 4.83, samples=266 write: IOPS=11, BW=45.9KiB/s (46.0kB/s)(6296KiB/137189msec); 0 zone resets clat (usec): min=1098, max=805158, avg=44483.88, stdev=49935.87 lat (usec): min=1099, max=805160, avg=44485.92, stdev=49935.54 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1418], 10.00th=[ 2073], 20.00th=[ 5276], | 30.00th=[ 10421], 40.00th=[ 20579], 50.00th=[ 31065], 60.00th=[ 43254], | 70.00th=[ 56361], 80.00th=[ 74974], 90.00th=[103285], 95.00th=[132645], | 99.00th=[200279], 99.50th=[258999], 99.90th=[404751], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 7, max= 142, per=24.86%, avg=45.49, stdev=22.49, samples=269 iops : min= 1, max= 35, avg=10.75, stdev= 5.66, samples=269 lat (usec) : 50=0.42%, 100=3.12%, 250=0.39%, 500=0.10%, 750=0.03% lat (msec) : 2=4.95%, 4=4.04%, 10=6.48%, 20=8.85%, 50=37.04% lat (msec) : 100=26.53%, 250=7.65%, 500=0.36%, 1000=0.03% cpu : usr=0.09%, sys=5.31%, ctx=6776, 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=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=145254: Thu Jul 30 20:23:33 2026 read: IOPS=11, BW=44.1KiB/s (45.1kB/s)(5940KiB/134767msec) clat (usec): min=28, max=398749, avg=45159.38, stdev=33570.85 lat (usec): min=28, max=398751, avg=45165.59, stdev=33586.42 clat percentiles (usec): | 1.00th=[ 51], 5.00th=[ 63], 10.00th=[ 13566], 20.00th=[ 22152], | 30.00th=[ 27657], 40.00th=[ 33162], 50.00th=[ 38536], 60.00th=[ 44827], | 70.00th=[ 53740], 80.00th=[ 64750], 90.00th=[ 84411], 95.00th=[105382], | 99.00th=[162530], 99.50th=[202376], 99.90th=[263193], 99.95th=[400557], | 99.99th=[400557] bw ( KiB/s): min= 5, max= 103, per=25.03%, avg=43.80, stdev=18.71, samples=264 iops : min= 1, max= 25, avg=10.31, stdev= 4.69, samples=264 write: IOPS=11, BW=47.1KiB/s (48.2kB/s)(6348KiB/134767msec); 0 zone resets clat (usec): min=1181, max=804400, avg=42357.55, stdev=46738.47 lat (usec): min=1183, max=804401, avg=42361.50, stdev=46736.82 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1450], 10.00th=[ 2311], 20.00th=[ 5866], | 30.00th=[ 10421], 40.00th=[ 20317], 50.00th=[ 30278], 60.00th=[ 41157], | 70.00th=[ 55313], 80.00th=[ 72877], 90.00th=[ 96994], 95.00th=[125305], | 99.00th=[185598], 99.50th=[221250], 99.90th=[408945], 99.95th=[801113], | 99.99th=[801113] bw ( KiB/s): min= 5, max= 127, per=25.43%, avg=46.53, stdev=21.27, samples=265 iops : min= 1, max= 31, avg=11.01, stdev= 5.34, samples=265 lat (usec) : 50=0.46%, 100=2.96%, 250=0.23%, 500=0.07% lat (msec) : 2=4.75%, 4=3.29%, 10=7.49%, 20=9.15%, 50=37.66% lat (msec) : 100=26.30%, 250=7.45%, 500=0.16%, 1000=0.03% cpu : usr=0.08%, sys=5.29%, ctx=6689, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=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=145257: Thu Jul 30 20:23:33 2026 read: IOPS=11, BW=44.9KiB/s (45.0kB/s)(6028KiB/134201msec) clat (usec): min=30, max=384556, avg=45351.44, stdev=34117.57 lat (usec): min=31, max=384557, avg=45356.79, stdev=34118.01 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 61], 10.00th=[ 13173], 20.00th=[ 21365], | 30.00th=[ 26346], 40.00th=[ 31851], 50.00th=[ 39060], 60.00th=[ 46400], | 70.00th=[ 55837], 80.00th=[ 66323], 90.00th=[ 83362], 95.00th=[102237], | 99.00th=[162530], 99.50th=[212861], 99.90th=[325059], 99.95th=[383779], | 99.99th=[383779] bw ( KiB/s): min= 7, max= 111, per=25.79%, avg=45.13, stdev=19.13, samples=260 iops : min= 1, max= 27, avg=10.65, stdev= 4.81, samples=260 write: IOPS=11, BW=46.6KiB/s (47.8kB/s)(6260KiB/134201msec); 0 zone resets clat (usec): min=1178, max=827410, avg=41733.23, stdev=46246.97 lat (usec): min=1180, max=827412, avg=41738.60, stdev=46243.97 clat percentiles (usec): | 1.00th=[ 1254], 5.00th=[ 1418], 10.00th=[ 2180], 20.00th=[ 4883], | 30.00th=[ 10290], 40.00th=[ 21103], 50.00th=[ 31065], 60.00th=[ 42206], | 70.00th=[ 54264], 80.00th=[ 69731], 90.00th=[ 94897], 95.00th=[117965], | 99.00th=[179307], 99.50th=[217056], 99.90th=[413139], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 119, per=25.38%, avg=46.45, stdev=20.35, samples=262 iops : min= 1, max= 29, avg=10.99, stdev= 5.11, samples=262 lat (usec) : 50=0.59%, 100=2.86%, 250=0.39%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.07% lat (msec) : 2=4.52%, 4=4.65%, 10=6.25%, 20=9.38%, 50=36.30% lat (msec) : 100=27.80%, 250=6.87%, 500=0.20%, 1000=0.03% cpu : usr=0.08%, sys=5.18%, ctx=6658, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145258: Thu Jul 30 20:23:33 2026 read: IOPS=11, BW=45.5KiB/s (46.6kB/s)(6052KiB/132942msec) clat (usec): min=29, max=269390, avg=42460.76, stdev=31322.10 lat (usec): min=29, max=269392, avg=42462.80, stdev=31321.05 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 62], 10.00th=[ 11469], 20.00th=[ 20317], | 30.00th=[ 25297], 40.00th=[ 30278], 50.00th=[ 36963], 60.00th=[ 43254], | 70.00th=[ 51119], 80.00th=[ 61604], 90.00th=[ 81265], 95.00th=[ 98042], | 99.00th=[152044], 99.50th=[185598], 99.90th=[265290], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 111, per=26.17%, avg=45.80, stdev=19.07, samples=258 iops : min= 1, max= 27, avg=10.82, stdev= 4.80, samples=258 write: IOPS=11, BW=46.9KiB/s (48.0kB/s)(6236KiB/132942msec); 0 zone resets clat (usec): min=1070, max=828277, avg=43743.11, stdev=48905.53 lat (usec): min=1072, max=828278, avg=43746.04, stdev=48905.51 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1418], 10.00th=[ 2180], 20.00th=[ 5342], | 30.00th=[ 10159], 40.00th=[ 21365], 50.00th=[ 31589], 60.00th=[ 42206], | 70.00th=[ 56361], 80.00th=[ 73925], 90.00th=[100140], 95.00th=[123208], | 99.00th=[196084], 99.50th=[254804], 99.90th=[341836], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 143, per=25.43%, avg=46.54, stdev=20.68, samples=261 iops : min= 1, max= 35, avg=11.01, stdev= 5.21, samples=261 lat (usec) : 50=0.72%, 100=3.06%, 250=0.42%, 750=0.13% lat (msec) : 2=4.69%, 4=3.39%, 10=7.36%, 20=9.60%, 50=38.05% lat (msec) : 100=25.16%, 250=7.10%, 500=0.29%, 1000=0.03% cpu : usr=0.07%, sys=5.37%, ctx=6765, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=175KiB/s (179kB/s), 43.7KiB/s-45.5KiB/s (44.7kB/s-46.6kB/s), io=23.4MiB (24.6MB), run=132942-137189msec WRITE: bw=183KiB/s (188kB/s), 45.9KiB/s-47.1KiB/s (46.0kB/s-48.2kB/s), io=24.6MiB (25.7MB), run=132942-137189msec fio: pid=145250, err=5/file:backend.c:481, func=full resid, error=Input/output error rand-rw: (groupid=0, jobs=1): err= 5 (file:backend.c:481, func=full resid, error=Input/output error): pid=145250: Thu Jul 30 20:25:35 2026 read: IOPS=4, BW=17.9KiB/s (18.3kB/s)(3000KiB/168007msec) clat (msec): min=6, max=849, avg=49.70, stdev=54.92 lat (msec): min=6, max=849, avg=49.70, stdev=54.92 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 12], 20.00th=[ 16], | 30.00th=[ 21], 40.00th=[ 26], 50.00th=[ 34], 60.00th=[ 43], | 70.00th=[ 56], 80.00th=[ 73], 90.00th=[ 103], 95.00th=[ 138], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 95, per=25.77%, avg=20.88, stdev=16.12, samples=274 iops : min= 1, max= 23, avg= 4.57, stdev= 4.08, samples=274 write: IOPS=4, BW=18.4KiB/s (18.9kB/s)(3096KiB/168007msec); 0 zone resets clat (msec): min=43, max=818, avg=168.36, stdev=84.93 lat (msec): min=43, max=818, avg=168.37, stdev=84.93 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 65], 10.00th=[ 73], 20.00th=[ 90], | 30.00th=[ 109], 40.00th=[ 132], 50.00th=[ 155], 60.00th=[ 180], | 70.00th=[ 207], 80.00th=[ 239], 90.00th=[ 275], 95.00th=[ 313], | 99.00th=[ 414], 99.50th=[ 443], 99.90th=[ 818], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 55, per=21.72%, avg=18.24, stdev=10.31, samples=324 iops : min= 1, max= 13, avg= 3.91, stdev= 2.64, samples=324 lat (msec) : 10=2.23%, 20=12.20%, 50=18.49%, 100=24.33%, 250=33.38% lat (msec) : 500=9.11%, 750=0.07%, 1000=0.13% cpu : usr=0.02%, sys=1.18%, ctx=2350, majf=0, minf=19 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=751,774,0,0 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=145253: Thu Jul 30 20:25:35 2026 read: IOPS=5, BW=22.0KiB/s (23.6kB/s)(5940KiB/258270msec) clat (msec): min=5, max=854, avg=34.49, stdev=43.81 lat (msec): min=5, max=854, avg=34.50, stdev=43.81 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 21], 60.00th=[ 26], | 70.00th=[ 33], 80.00th=[ 46], 90.00th=[ 78], 95.00th=[ 108], | 99.00th=[ 201], 99.50th=[ 271], 99.90th=[ 405], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 96, per=32.96%, avg=26.69, stdev=17.94, samples=431 iops : min= 1, max= 24, avg= 6.07, stdev= 4.54, samples=431 write: IOPS=6, BW=24.6KiB/s (25.2kB/s)(6348KiB/258270msec); 0 zone resets clat (msec): min=34, max=764, avg=130.17, stdev=72.42 lat (msec): min=34, max=764, avg=130.17, stdev=72.42 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 75], | 30.00th=[ 86], 40.00th=[ 97], 50.00th=[ 109], 60.00th=[ 126], | 70.00th=[ 146], 80.00th=[ 176], 90.00th=[ 232], 95.00th=[ 275], | 99.00th=[ 376], 99.50th=[ 409], 99.90th=[ 481], 99.95th=[ 768], | 99.99th=[ 768] bw ( KiB/s): min= 7, max= 63, per=29.11%, avg=24.45, stdev=12.52, samples=501 iops : min= 1, max= 15, avg= 5.50, stdev= 3.20, samples=501 lat (msec) : 10=4.65%, 20=18.88%, 50=17.71%, 100=26.50%, 250=27.96% lat (msec) : 500=4.23%, 1000=0.07% cpu : usr=0.04%, sys=1.39%, ctx=5532, 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=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=145255: Thu Jul 30 20:25:35 2026 read: IOPS=5, BW=23.2KiB/s (23.8kB/s)(6028KiB/259263msec) clat (msec): min=5, max=409, avg=34.43, stdev=36.09 lat (msec): min=5, max=409, avg=34.43, stdev=36.09 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 16], 40.00th=[ 19], 50.00th=[ 22], 60.00th=[ 27], | 70.00th=[ 34], 80.00th=[ 48], 90.00th=[ 78], 95.00th=[ 104], | 99.00th=[ 157], 99.50th=[ 230], 99.90th=[ 380], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 7, max= 101, per=31.35%, avg=25.40, stdev=17.76, samples=459 iops : min= 1, max= 25, avg= 5.75, stdev= 4.47, samples=459 write: IOPS=6, BW=24.1KiB/s (24.7kB/s)(6260KiB/259263msec); 0 zone resets clat (msec): min=33, max=1079, avg=132.22, stdev=78.23 lat (msec): min=33, max=1079, avg=132.23, stdev=78.23 clat percentiles (msec): | 1.00th=[ 46], 5.00th=[ 58], 10.00th=[ 65], 20.00th=[ 77], | 30.00th=[ 86], 40.00th=[ 97], 50.00th=[ 110], 60.00th=[ 125], | 70.00th=[ 144], 80.00th=[ 180], 90.00th=[ 232], 95.00th=[ 279], | 99.00th=[ 397], 99.50th=[ 439], 99.90th=[ 818], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 64, per=28.69%, avg=24.10, stdev=12.36, samples=501 iops : min= 1, max= 16, avg= 5.42, stdev= 3.17, samples=501 lat (msec) : 10=4.10%, 20=18.62%, 50=18.00%, 100=27.08%, 250=28.09% lat (msec) : 500=4.04%, 1000=0.03%, 2000=0.03% cpu : usr=0.05%, sys=1.42%, ctx=5585, 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=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=145256: Thu Jul 30 20:25:35 2026 read: IOPS=5, BW=23.5KiB/s (24.1kB/s)(6052KiB/257675msec) clat (msec): min=5, max=328, avg=34.53, stdev=36.58 lat (msec): min=5, max=328, avg=34.53, stdev=36.59 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 21], 60.00th=[ 25], | 70.00th=[ 33], 80.00th=[ 48], 90.00th=[ 82], 95.00th=[ 112], | 99.00th=[ 182], 99.50th=[ 207], 99.90th=[ 321], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 111, per=33.04%, avg=26.76, stdev=19.31, samples=438 iops : min= 1, max= 27, avg= 6.09, stdev= 4.88, samples=438 write: IOPS=6, BW=24.2KiB/s (24.8kB/s)(6236KiB/257675msec); 0 zone resets clat (msec): min=31, max=1075, avg=131.47, stdev=76.47 lat (msec): min=31, max=1075, avg=131.47, stdev=76.47 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 56], 10.00th=[ 64], 20.00th=[ 75], | 30.00th=[ 85], 40.00th=[ 95], 50.00th=[ 109], 60.00th=[ 127], | 70.00th=[ 146], 80.00th=[ 178], 90.00th=[ 239], 95.00th=[ 279], | 99.00th=[ 388], 99.50th=[ 430], 99.90th=[ 489], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 64, per=28.46%, avg=23.90, stdev=12.54, samples=503 iops : min= 1, max= 16, avg= 5.36, stdev= 3.20, samples=503 lat (msec) : 10=4.52%, 20=19.30%, 50=17.42%, 100=27.08%, 250=27.15% lat (msec) : 500=4.49%, 2000=0.03% cpu : usr=0.04%, sys=1.37%, ctx=5529, 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=81.1KiB/s (83.0kB/s), 17.9KiB/s-23.5KiB/s (18.3kB/s-24.1kB/s), io=20.5MiB (21.5MB), run=168007-259263msec WRITE: bw=84.6KiB/s (86.7kB/s), 18.4KiB/s-24.6KiB/s (18.9kB/s-25.2kB/s), io=21.4MiB (22.5MB), run=168007-259263msec 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=145316: Thu Jul 30 20:26:16 2026 read: IOPS=12, BW=194KiB/s (199kB/s)(5920KiB/30534msec) clat (usec): min=38, max=201104, avg=41554.10, stdev=32769.31 lat (usec): min=38, max=201106, avg=41559.42, stdev=32767.03 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 57], 10.00th=[ 65], 20.00th=[ 14484], | 30.00th=[ 24773], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 45351], | 70.00th=[ 51643], 80.00th=[ 64750], 90.00th=[ 81265], 95.00th=[103285], | 99.00th=[154141], 99.50th=[168821], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 93, max= 346, per=24.31%, avg=190.56, stdev=64.90, samples=59 iops : min= 5, max= 21, avg=11.14, stdev= 4.10, samples=59 write: IOPS=13, BW=209KiB/s (214kB/s)(6368KiB/30534msec); 0 zone resets clat (usec): min=1640, max=211531, avg=37958.22, stdev=37984.33 lat (usec): min=1642, max=211532, avg=37967.77, stdev=37990.48 clat percentiles (usec): | 1.00th=[ 1663], 5.00th=[ 2114], 10.00th=[ 3654], 20.00th=[ 7111], | 30.00th=[ 10290], 40.00th=[ 15139], 50.00th=[ 22414], 60.00th=[ 35390], | 70.00th=[ 51643], 80.00th=[ 67634], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[168821], 99.50th=[185598], 99.90th=[210764], 99.95th=[210764], | 99.99th=[210764] bw ( KiB/s): min= 31, max= 375, per=25.19%, avg=207.81, stdev=74.95, samples=59 iops : min= 1, max= 23, avg=12.22, stdev= 4.74, samples=59 lat (usec) : 50=0.91%, 100=7.16%, 250=0.52%, 500=0.39%, 750=0.13% lat (msec) : 2=2.08%, 4=3.52%, 10=9.38%, 20=12.11%, 50=32.42% lat (msec) : 100=24.74%, 250=6.64% cpu : usr=0.09%, sys=6.15%, ctx=1601, 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=145317: Thu Jul 30 20:26:16 2026 read: IOPS=12, BW=198KiB/s (203kB/s)(5744KiB/28956msec) clat (usec): min=38, max=226526, avg=40954.13, stdev=32553.80 lat (usec): min=38, max=226527, avg=40955.84, stdev=32554.16 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 61], 10.00th=[ 69], 20.00th=[ 3228], | 30.00th=[ 23725], 40.00th=[ 32113], 50.00th=[ 38011], 60.00th=[ 44827], | 70.00th=[ 54264], 80.00th=[ 65799], 90.00th=[ 78119], 95.00th=[100140], | 99.00th=[141558], 99.50th=[154141], 99.90th=[227541], 99.95th=[227541], | 99.99th=[227541] bw ( KiB/s): min= 50, max= 478, per=25.32%, avg=198.54, stdev=80.68, samples=56 iops : min= 3, max= 29, avg=11.64, stdev= 5.06, samples=56 write: IOPS=14, BW=226KiB/s (231kB/s)(6544KiB/28956msec); 0 zone resets clat (usec): min=1676, max=432436, avg=34736.00, stdev=38979.61 lat (usec): min=1679, max=432438, avg=34738.37, stdev=38979.86 clat percentiles (usec): | 1.00th=[ 1778], 5.00th=[ 2114], 10.00th=[ 3228], 20.00th=[ 5604], | 30.00th=[ 9372], 40.00th=[ 13698], 50.00th=[ 23462], 60.00th=[ 31065], | 70.00th=[ 43779], 80.00th=[ 57934], 90.00th=[ 85459], 95.00th=[100140], | 99.00th=[137364], 99.50th=[191890], 99.90th=[434111], 99.95th=[434111], | 99.99th=[434111] bw ( KiB/s): min= 62, max= 573, per=27.38%, avg=225.88, stdev=95.71, samples=56 iops : min= 3, max= 35, avg=13.38, stdev= 6.05, samples=56 lat (usec) : 50=0.65%, 100=6.90%, 250=0.91%, 500=0.13%, 750=0.26% lat (usec) : 1000=0.13% lat (msec) : 2=2.47%, 4=4.95%, 10=10.16%, 20=10.68%, 50=32.94% lat (msec) : 100=24.74%, 250=4.95%, 500=0.13% cpu : usr=0.08%, sys=6.06%, ctx=1467, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145318: Thu Jul 30 20:26:16 2026 read: IOPS=12, BW=207KiB/s (212kB/s)(6256KiB/30225msec) clat (usec): min=38, max=308382, avg=41702.50, stdev=36069.70 lat (usec): min=38, max=308383, avg=41705.21, stdev=36069.44 clat percentiles (usec): | 1.00th=[ 40], 5.00th=[ 55], 10.00th=[ 63], 20.00th=[ 98], | 30.00th=[ 24249], 40.00th=[ 31851], 50.00th=[ 40109], 60.00th=[ 45876], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 83362], 95.00th=[ 99091], | 99.00th=[166724], 99.50th=[175113], 99.90th=[308282], 99.95th=[308282], | 99.99th=[308282] bw ( KiB/s): min= 62, max= 382, per=26.44%, avg=207.29, stdev=74.88, samples=59 iops : min= 3, max= 23, avg=12.19, stdev= 4.75, samples=59 write: IOPS=12, BW=200KiB/s (204kB/s)(6032KiB/30225msec); 0 zone resets clat (usec): min=1591, max=251701, avg=36717.97, stdev=38225.35 lat (usec): min=1592, max=251702, avg=36720.04, stdev=38225.41 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 1975], 10.00th=[ 3064], 20.00th=[ 6849], | 30.00th=[ 10028], 40.00th=[ 14091], 50.00th=[ 24249], 60.00th=[ 33817], | 70.00th=[ 46400], 80.00th=[ 64226], 90.00th=[ 88605], 95.00th=[101188], | 99.00th=[183501], 99.50th=[223347], 99.90th=[252707], 99.95th=[252707], | 99.99th=[252707] bw ( KiB/s): min= 31, max= 383, per=24.30%, avg=200.45, stdev=81.90, samples=58 iops : min= 1, max= 23, avg=11.76, stdev= 5.21, samples=58 lat (usec) : 50=1.69%, 100=8.72%, 250=0.78% lat (msec) : 2=2.60%, 4=3.78%, 10=8.98%, 20=8.98%, 50=32.81% lat (msec) : 100=26.43%, 250=4.95%, 500=0.26% cpu : usr=0.08%, sys=5.85%, ctx=1528, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145319: Thu Jul 30 20:26:16 2026 read: IOPS=12, BW=202KiB/s (207kB/s)(6032KiB/29891msec) clat (usec): min=38, max=292995, avg=41107.81, stdev=36688.94 lat (usec): min=39, max=292996, avg=41136.47, stdev=36683.19 clat percentiles (usec): | 1.00th=[ 42], 5.00th=[ 56], 10.00th=[ 62], 20.00th=[ 77], | 30.00th=[ 21103], 40.00th=[ 31065], 50.00th=[ 39584], 60.00th=[ 46924], | 70.00th=[ 55313], 80.00th=[ 65274], 90.00th=[ 82314], 95.00th=[102237], | 99.00th=[158335], 99.50th=[206570], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 352, per=25.96%, avg=203.54, stdev=85.50, samples=57 iops : min= 1, max= 22, avg=11.96, stdev= 5.45, samples=57 write: IOPS=13, BW=209KiB/s (214kB/s)(6256KiB/29891msec); 0 zone resets clat (usec): min=1585, max=292927, avg=36633.91, stdev=42135.49 lat (usec): min=1586, max=292930, avg=36636.08, stdev=42135.58 clat percentiles (usec): | 1.00th=[ 1680], 5.00th=[ 2024], 10.00th=[ 3261], 20.00th=[ 5866], | 30.00th=[ 9372], 40.00th=[ 13435], 50.00th=[ 21890], 60.00th=[ 31851], | 70.00th=[ 43254], 80.00th=[ 58459], 90.00th=[ 86508], 95.00th=[126354], | 99.00th=[200279], 99.50th=[287310], 99.90th=[291505], 99.95th=[291505], | 99.99th=[291505] bw ( KiB/s): min= 31, max= 414, per=25.25%, avg=208.28, stdev=88.59, samples=58 iops : min= 1, max= 25, avg=12.26, stdev= 5.61, samples=58 lat (usec) : 50=0.91%, 100=10.55%, 250=1.04%, 500=0.26% lat (msec) : 2=2.47%, 4=3.65%, 10=10.03%, 20=10.42%, 50=29.56% lat (msec) : 100=24.48%, 250=6.25%, 500=0.39% cpu : usr=0.06%, sys=5.92%, ctx=1517, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=784KiB/s (803kB/s), 194KiB/s-207KiB/s (199kB/s-212kB/s), io=23.4MiB (24.5MB), run=28956-30534msec WRITE: bw=825KiB/s (845kB/s), 200KiB/s-226KiB/s (204kB/s-231kB/s), io=24.6MiB (25.8MB), run=28956-30534msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145310: Thu Jul 30 20:26:56 2026 read: IOPS=5, BW=83.3KiB/s (85.3kB/s)(5920KiB/71049msec) clat (msec): min=6, max=534, avg=42.46, stdev=50.70 lat (msec): min=6, max=534, avg=42.46, stdev=50.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 32], | 70.00th=[ 37], 80.00th=[ 50], 90.00th=[ 89], 95.00th=[ 159], | 99.00th=[ 247], 99.50th=[ 275], 99.90th=[ 535], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 30, max= 349, per=27.00%, avg=90.44, stdev=57.79, samples=128 iops : min= 1, max= 21, avg= 4.87, stdev= 3.64, samples=128 write: IOPS=5, BW=89.6KiB/s (91.8kB/s)(6368KiB/71049msec); 0 zone resets clat (msec): min=40, max=372, avg=138.43, stdev=57.88 lat (msec): min=40, max=372, avg=138.43, stdev=57.88 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 70], 10.00th=[ 82], 20.00th=[ 94], | 30.00th=[ 104], 40.00th=[ 114], 50.00th=[ 126], 60.00th=[ 136], | 70.00th=[ 155], 80.00th=[ 178], 90.00th=[ 222], 95.00th=[ 262], | 99.00th=[ 338], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 31, max= 192, per=25.84%, avg=91.20, stdev=38.35, samples=137 iops : min= 1, max= 12, avg= 4.92, stdev= 2.48, samples=137 lat (msec) : 10=1.43%, 20=15.23%, 50=22.27%, 100=18.62%, 250=39.06% lat (msec) : 500=3.26%, 750=0.13% cpu : usr=0.03%, sys=1.30%, ctx=1290, 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=145311: Thu Jul 30 20:26:56 2026 read: IOPS=5, BW=80.5KiB/s (82.5kB/s)(5744KiB/71311msec) clat (msec): min=7, max=257, avg=38.21, stdev=37.69 lat (msec): min=7, max=257, avg=38.21, stdev=37.69 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 50], 90.00th=[ 80], 95.00th=[ 113], | 99.00th=[ 230], 99.50th=[ 251], 99.90th=[ 257], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 22, max= 286, per=27.57%, avg=92.36, stdev=62.34, samples=121 iops : min= 1, max= 17, avg= 5.01, stdev= 3.91, samples=121 write: IOPS=5, BW=91.8KiB/s (93.0kB/s)(6544KiB/71311msec); 0 zone resets clat (msec): min=41, max=478, avg=140.58, stdev=63.04 lat (msec): min=41, max=478, avg=140.59, stdev=63.04 clat percentiles (msec): | 1.00th=[ 56], 5.00th=[ 70], 10.00th=[ 79], 20.00th=[ 93], | 30.00th=[ 102], 40.00th=[ 112], 50.00th=[ 123], 60.00th=[ 136], | 70.00th=[ 159], 80.00th=[ 186], 90.00th=[ 230], 95.00th=[ 268], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 30, max= 188, per=26.47%, avg=93.43, stdev=37.80, samples=136 iops : min= 1, max= 11, avg= 5.06, stdev= 2.43, samples=136 lat (msec) : 10=1.69%, 20=12.63%, 50=23.70%, 100=20.57%, 250=37.37% lat (msec) : 500=4.04% cpu : usr=0.03%, sys=1.30%, ctx=1296, 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=145312: Thu Jul 30 20:26:56 2026 read: IOPS=5, BW=89.6KiB/s (91.7kB/s)(6256KiB/69825msec) clat (msec): min=7, max=254, avg=38.36, stdev=37.40 lat (msec): min=7, max=254, avg=38.36, stdev=37.40 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 17], | 30.00th=[ 20], 40.00th=[ 23], 50.00th=[ 26], 60.00th=[ 30], | 70.00th=[ 36], 80.00th=[ 48], 90.00th=[ 84], 95.00th=[ 120], | 99.00th=[ 218], 99.50th=[ 251], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 30, max= 315, per=29.49%, avg=98.78, stdev=65.17, samples=125 iops : min= 1, max= 19, avg= 5.39, stdev= 4.16, samples=125 write: IOPS=5, BW=86.4KiB/s (88.5kB/s)(6032KiB/69825msec); 0 zone resets clat (msec): min=43, max=479, avg=144.92, stdev=60.79 lat (msec): min=43, max=479, avg=144.93, stdev=60.79 clat percentiles (msec): | 1.00th=[ 52], 5.00th=[ 72], 10.00th=[ 80], 20.00th=[ 101], | 30.00th=[ 113], 40.00th=[ 121], 50.00th=[ 130], 60.00th=[ 148], | 70.00th=[ 161], 80.00th=[ 186], 90.00th=[ 215], 95.00th=[ 249], | 99.00th=[ 351], 99.50th=[ 422], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 30, max= 160, per=24.69%, avg=87.17, stdev=34.70, samples=136 iops : min= 1, max= 10, avg= 4.67, stdev= 2.21, samples=136 lat (msec) : 10=1.69%, 20=15.10%, 50=24.48%, 100=15.76%, 250=40.49% lat (msec) : 500=2.47% cpu : usr=0.04%, sys=1.29%, ctx=1301, 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=145313: Thu Jul 30 20:26:56 2026 read: IOPS=5, BW=86.1KiB/s (88.2kB/s)(6032KiB/70052msec) clat (msec): min=6, max=462, avg=40.02, stdev=40.56 lat (msec): min=6, max=462, avg=40.02, stdev=40.56 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 24], 50.00th=[ 29], 60.00th=[ 34], | 70.00th=[ 39], 80.00th=[ 53], 90.00th=[ 78], 95.00th=[ 120], | 99.00th=[ 180], 99.50th=[ 321], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 30, max= 288, per=28.16%, avg=94.33, stdev=58.96, samples=125 iops : min= 1, max= 18, avg= 5.11, stdev= 3.76, samples=125 write: IOPS=5, BW=89.3KiB/s (91.4kB/s)(6256KiB/70056msec); 0 zone resets clat (msec): min=39, max=406, avg=139.99, stdev=58.17 lat (msec): min=39, max=406, avg=139.99, stdev=58.17 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 72], 10.00th=[ 83], 20.00th=[ 95], | 30.00th=[ 105], 40.00th=[ 113], 50.00th=[ 127], 60.00th=[ 142], | 70.00th=[ 157], 80.00th=[ 176], 90.00th=[ 213], 95.00th=[ 257], | 99.00th=[ 347], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 31, max= 191, per=25.35%, avg=89.50, stdev=37.83, samples=137 iops : min= 1, max= 11, avg= 4.82, stdev= 2.45, samples=137 lat (msec) : 10=0.91%, 20=12.63%, 50=25.13%, 100=20.18%, 250=38.15% lat (msec) : 500=2.99% cpu : usr=0.05%, sys=1.44%, ctx=1343, 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=336KiB/s (344kB/s), 80.5KiB/s-89.6KiB/s (82.5kB/s-91.7kB/s), io=23.4MiB (24.5MB), run=69825-71311msec WRITE: bw=353KiB/s (362kB/s), 86.4KiB/s-91.8KiB/s (88.5kB/s-93.0kB/s), io=24.6MiB (25.8MB), run=69825-71311msec 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=145337: Thu Jul 30 20:27:13 2026 read: IOPS=2, BW=2155KiB/s (2207kB/s)(7168KiB/3326msec) clat (msec): min=2, max=374, avg=227.82, stdev=114.78 lat (msec): min=2, max=374, avg=227.82, stdev=114.78 clat percentiles (msec): | 1.00th=[ 3], 5.00th=[ 3], 10.00th=[ 3], 20.00th=[ 182], | 30.00th=[ 245], 40.00th=[ 245], 50.00th=[ 257], 60.00th=[ 266], | 70.00th=[ 266], 80.00th=[ 271], 90.00th=[ 376], 95.00th=[ 376], | 99.00th=[ 376], 99.50th=[ 376], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 2031, max= 4071, per=72.51%, avg=2854.00, stdev=998.34, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 1.15, samples=4 write: IOPS=1, BW=1539KiB/s (1576kB/s)(5120KiB/3326msec); 0 zone resets clat (msec): min=247, max=450, avg=335.82, stdev=74.28 lat (msec): min=248, max=450, avg=335.93, stdev=74.28 clat percentiles (msec): | 1.00th=[ 249], 5.00th=[ 249], 10.00th=[ 249], 20.00th=[ 249], | 30.00th=[ 313], 40.00th=[ 313], 50.00th=[ 317], 60.00th=[ 317], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 1954, max= 2043, per=36.32%, avg=2001.00, stdev=42.81, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 lat (msec) : 4=8.33%, 250=25.00%, 500=66.67% cpu : usr=0.00%, sys=13.77%, ctx=252, 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=145338: Thu Jul 30 20:27:13 2026 read: IOPS=0, BW=394KiB/s (403kB/s)(2048KiB/5203msec) clat (msec): min=236, max=351, avg=293.56, stdev=81.34 lat (msec): min=236, max=351, avg=293.56, stdev=81.34 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 236], 10.00th=[ 236], 20.00th=[ 236], | 30.00th=[ 236], 40.00th=[ 236], 50.00th=[ 236], 60.00th=[ 351], | 70.00th=[ 351], 80.00th=[ 351], 90.00th=[ 351], 95.00th=[ 351], | 99.00th=[ 351], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 1777, max= 1988, per=47.83%, avg=1882.50, stdev=149.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1968KiB/s (2015kB/s)(10.0MiB/5203msec); 0 zone resets clat (msec): min=201, max=733, avg=450.04, stdev=208.21 lat (msec): min=201, max=734, avg=450.19, stdev=208.29 clat percentiles (msec): | 1.00th=[ 203], 5.00th=[ 203], 10.00th=[ 203], 20.00th=[ 220], | 30.00th=[ 224], 40.00th=[ 292], 50.00th=[ 456], 60.00th=[ 460], | 70.00th=[ 558], 80.00th=[ 667], 90.00th=[ 693], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1954, max= 2043, per=36.57%, avg=2015.11, stdev=33.26, samples=9 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=9 lat (msec) : 250=33.33%, 500=33.33%, 750=33.33% cpu : usr=0.00%, sys=11.28%, ctx=132, 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=145340: Thu Jul 30 20:27:13 2026 read: IOPS=1, BW=1928KiB/s (1975kB/s)(6144KiB/3186msec) clat (usec): min=1049, max=475250, avg=122805.14, stdev=189031.84 lat (usec): min=1050, max=475251, avg=122806.38, stdev=189031.97 clat percentiles (usec): | 1.00th=[ 1057], 5.00th=[ 1057], 10.00th=[ 1057], 20.00th=[ 2180], | 30.00th=[ 2180], 40.00th=[ 11731], 50.00th=[ 11731], 60.00th=[ 43254], | 70.00th=[202376], 80.00th=[202376], 90.00th=[476054], 95.00th=[476054], | 99.00th=[476054], 99.50th=[476054], 99.90th=[476054], 99.95th=[476054], | 99.99th=[476054] bw ( KiB/s): min= 1954, max= 5930, per=84.07%, avg=3309.00, stdev=2270.29, samples=3 iops : min= 1, max= 5, avg= 2.33, stdev= 2.31, samples=3 write: IOPS=1, BW=1928KiB/s (1975kB/s)(6144KiB/3186msec); 0 zone resets clat (msec): min=217, max=741, avg=386.03, stdev=198.12 lat (msec): min=217, max=741, avg=386.35, stdev=198.03 clat percentiles (msec): | 1.00th=[ 218], 5.00th=[ 218], 10.00th=[ 218], 20.00th=[ 247], | 30.00th=[ 247], 40.00th=[ 264], 50.00th=[ 264], 60.00th=[ 380], | 70.00th=[ 468], 80.00th=[ 468], 90.00th=[ 743], 95.00th=[ 743], | 99.00th=[ 743], 99.50th=[ 743], 99.90th=[ 743], 99.95th=[ 743], | 99.99th=[ 743] bw ( KiB/s): min= 1954, max= 3953, per=45.00%, avg=2479.50, stdev=982.93, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 2=8.33%, 4=8.33%, 20=8.33%, 50=8.33%, 250=25.00% lat (msec) : 500=33.33%, 750=8.33% cpu : usr=0.00%, sys=12.68%, ctx=130, 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=145342: Thu Jul 30 20:27:13 2026 read: IOPS=1, BW=1098KiB/s (1124kB/s)(5120KiB/4665msec) clat (usec): min=507, max=628339, avg=199727.79, stdev=277749.46 lat (usec): min=508, max=628340, avg=199729.14, stdev=277749.42 clat percentiles (usec): | 1.00th=[ 506], 5.00th=[ 506], 10.00th=[ 506], 20.00th=[ 506], | 30.00th=[ 2507], 40.00th=[ 2507], 50.00th=[ 32375], 60.00th=[ 32375], | 70.00th=[333448], 80.00th=[333448], 90.00th=[624952], 95.00th=[624952], | 99.00th=[624952], 99.50th=[624952], 99.90th=[624952], 99.95th=[624952], | 99.99th=[624952] bw ( KiB/s): min= 3976, max= 4071, per=100.00%, avg=4023.50, stdev=67.18, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1537KiB/s (1573kB/s)(7168KiB/4665msec); 0 zone resets clat (msec): min=102, max=810, avg=507.64, stdev=253.23 lat (msec): min=102, max=810, avg=508.03, stdev=253.37 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 103], 10.00th=[ 103], 20.00th=[ 330], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 502], 60.00th=[ 642], | 70.00th=[ 642], 80.00th=[ 768], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 1976, max= 4063, per=44.09%, avg=2429.60, stdev=913.48, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (usec) : 750=8.33% lat (msec) : 4=8.33%, 50=8.33%, 250=8.33%, 500=25.00%, 750=25.00% lat (msec) : 1000=16.67% cpu : usr=0.00%, sys=7.76%, ctx=131, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3936KiB/s (4031kB/s), 394KiB/s-2155KiB/s (403kB/s-2207kB/s), io=20.0MiB (20.0MB), run=3186-5203msec WRITE: bw=5511KiB/s (5643kB/s), 1537KiB/s-1968KiB/s (1573kB/s-2015kB/s), io=28.0MiB (29.4MB), run=3186-5203msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145336: Thu Jul 30 20:27:13 2026 read: IOPS=1, BW=1920KiB/s (1966kB/s)(7168KiB/3734msec) clat (msec): min=100, max=848, avg=268.24, stdev=262.45 lat (msec): min=100, max=848, avg=268.24, stdev=262.45 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 101], 10.00th=[ 101], 20.00th=[ 113], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 178], 60.00th=[ 234], | 70.00th=[ 234], 80.00th=[ 262], 90.00th=[ 852], 95.00th=[ 852], | 99.00th=[ 852], 99.50th=[ 852], 99.90th=[ 852], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 2035, max= 4338, per=92.00%, avg=3486.67, stdev=1263.43, samples=3 iops : min= 1, max= 4, avg= 2.67, stdev= 1.53, samples=3 write: IOPS=1, BW=1371KiB/s (1404kB/s)(5120KiB/3734msec); 0 zone resets clat (msec): min=169, max=724, avg=364.76, stdev=221.48 lat (msec): min=169, max=724, avg=364.86, stdev=221.50 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 169], 10.00th=[ 169], 20.00th=[ 169], | 30.00th=[ 222], 40.00th=[ 222], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 726], 95.00th=[ 726], | 99.00th=[ 726], 99.50th=[ 726], 99.90th=[ 726], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 2019, max= 4023, per=47.68%, avg=2530.00, stdev=995.38, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (msec) : 250=58.33%, 500=25.00%, 750=8.33%, 1000=8.33% cpu : usr=0.03%, sys=4.02%, ctx=76, 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=145339: Thu Jul 30 20:27:13 2026 read: IOPS=0, BW=401KiB/s (411kB/s)(2048KiB/5105msec) clat (msec): min=157, max=497, avg=327.64, stdev=240.92 lat (msec): min=157, max=497, avg=327.64, stdev=240.92 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 157], 10.00th=[ 157], 20.00th=[ 157], | 30.00th=[ 157], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 1689, max= 2019, per=48.92%, avg=1854.00, stdev=233.35, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=1, BW=2006KiB/s (2054kB/s)(10.0MiB/5105msec); 0 zone resets clat (msec): min=227, max=690, avg=439.98, stdev=167.92 lat (msec): min=227, max=690, avg=440.08, stdev=167.93 clat percentiles (msec): | 1.00th=[ 228], 5.00th=[ 228], 10.00th=[ 228], 20.00th=[ 313], | 30.00th=[ 321], 40.00th=[ 326], 50.00th=[ 347], 60.00th=[ 380], | 70.00th=[ 514], 80.00th=[ 625], 90.00th=[ 667], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 2011, max= 4079, per=43.76%, avg=2321.86, stdev=774.90, samples=7 iops : min= 1, max= 3, avg= 1.29, stdev= 0.76, samples=7 lat (msec) : 250=16.67%, 500=50.00%, 750=33.33% cpu : usr=0.08%, sys=3.39%, ctx=79, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145341: Thu Jul 30 20:27:13 2026 read: IOPS=1, BW=1312KiB/s (1343kB/s)(6144KiB/4683msec) clat (msec): min=188, max=809, avg=407.16, stdev=244.09 lat (msec): min=188, max=809, avg=407.17, stdev=244.09 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 188], 10.00th=[ 188], 20.00th=[ 213], | 30.00th=[ 213], 40.00th=[ 305], 50.00th=[ 305], 60.00th=[ 338], | 70.00th=[ 592], 80.00th=[ 592], 90.00th=[ 810], 95.00th=[ 810], | 99.00th=[ 810], 99.50th=[ 810], 99.90th=[ 810], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 2011, max= 2035, per=53.48%, avg=2027.00, stdev=11.31, samples=4 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=4 write: IOPS=1, BW=1312KiB/s (1343kB/s)(6144KiB/4683msec); 0 zone resets clat (msec): min=249, max=684, avg=366.42, stdev=161.10 lat (msec): min=249, max=684, avg=366.52, stdev=161.10 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 266], | 30.00th=[ 266], 40.00th=[ 309], 50.00th=[ 309], 60.00th=[ 334], | 70.00th=[ 355], 80.00th=[ 355], 90.00th=[ 684], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1572, max= 2043, per=36.56%, avg=1940.00, stdev=205.94, samples=5 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=5 lat (msec) : 250=25.00%, 500=50.00%, 750=16.67%, 1000=8.33% cpu : usr=0.00%, sys=3.27%, ctx=123, 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=145343: Thu Jul 30 20:27:13 2026 read: IOPS=0, BW=948KiB/s (970kB/s)(5120KiB/5403msec) clat (msec): min=78, max=919, avg=358.92, stdev=329.60 lat (msec): min=78, max=919, avg=358.92, stdev=329.60 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 80], 10.00th=[ 80], 20.00th=[ 80], | 30.00th=[ 165], 40.00th=[ 165], 50.00th=[ 309], 60.00th=[ 309], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 919], 95.00th=[ 919], | 99.00th=[ 919], 99.50th=[ 919], 99.90th=[ 919], 99.95th=[ 919], | 99.99th=[ 919] bw ( KiB/s): min= 2023, max= 4055, per=71.35%, avg=2704.33, stdev=1169.73, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 write: IOPS=1, BW=1327KiB/s (1359kB/s)(7168KiB/5403msec); 0 zone resets clat (msec): min=319, max=932, avg=501.87, stdev=223.98 lat (msec): min=320, max=932, avg=502.21, stdev=223.77 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 321], 10.00th=[ 321], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 359], 50.00th=[ 380], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 617], 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= 2023, max= 4087, per=46.04%, avg=2443.00, stdev=919.04, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 lat (msec) : 100=8.33%, 250=8.33%, 500=50.00%, 750=16.67%, 1000=16.67% cpu : usr=0.06%, sys=3.89%, ctx=127, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3790KiB/s (3881kB/s), 401KiB/s-1920KiB/s (411kB/s-1966kB/s), io=20.0MiB (20.0MB), run=3734-5403msec WRITE: bw=5307KiB/s (5434kB/s), 1312KiB/s-2006KiB/s (1343kB/s-2054kB/s), io=28.0MiB (29.4MB), run=3734-5403msec 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=145354: Thu Jul 30 20:27:29 2026 read: IOPS=1, BW=5260KiB/s (5387kB/s)(12.0MiB/2336msec) clat (msec): min=399, max=1016, avg=763.42, stdev=323.28 lat (msec): min=399, max=1016, avg=763.43, stdev=323.28 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 877], 50.00th=[ 877], 60.00th=[ 877], | 70.00th=[ 1020], 80.00th=[ 1020], 90.00th=[ 1020], 95.00th=[ 1020], | 99.00th=[ 1020], 99.50th=[ 1020], 99.90th=[ 1020], 99.95th=[ 1020], | 99.99th=[ 1020] bw ( KiB/s): min= 7831, max= 8175, per=100.00%, avg=8003.00, stdev=243.24, 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=3.25%, ctx=34, 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=145356: Thu Jul 30 20:27:29 2026 read: IOPS=0, BW=1620KiB/s (1659kB/s)(4096KiB/2528msec) clat (nsec): min=176773k, max=176773k, avg=176772567.00, stdev= 0.00 lat (nsec): min=176774k, max=176774k, avg=176774485.00, stdev= 0.00 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=[ 178], | 70.00th=[ 178], 80.00th=[ 178], 90.00th=[ 178], 95.00th=[ 178], | 99.00th=[ 178], 99.50th=[ 178], 99.90th=[ 178], 99.95th=[ 178], | 99.99th=[ 178] bw ( KiB/s): min= 6410, max= 6410, per=98.90%, avg=6410.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=3241KiB/s (3318kB/s)(8192KiB/2528msec); 0 zone resets clat (msec): min=785, max=1453, avg=1119.41, stdev=472.73 lat (msec): min=786, max=1454, avg=1120.37, stdev=471.98 clat percentiles (msec): | 1.00th=[ 785], 5.00th=[ 785], 10.00th=[ 785], 20.00th=[ 785], | 30.00th=[ 785], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 1452], | 70.00th=[ 1452], 80.00th=[ 1452], 90.00th=[ 1452], 95.00th=[ 1452], | 99.00th=[ 1452], 99.50th=[ 1452], 99.90th=[ 1452], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 8192, max= 8192, per=84.36%, 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=4.99%, ctx=59, 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=145358: Thu Jul 30 20:27:29 2026 write: IOPS=0, BW=3642KiB/s (3729kB/s)(12.0MiB/3374msec); 0 zone resets clat (msec): min=598, max=1751, avg=1106.44, stdev=588.83 lat (msec): min=598, max=1752, avg=1108.31, stdev=588.38 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 969], 50.00th=[ 969], 60.00th=[ 969], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8062, max= 8192, per=83.69%, avg=8127.00, stdev=91.92, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, 2000=33.33% cpu : usr=0.06%, sys=3.94%, 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=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=145359: Thu Jul 30 20:27:29 2026 write: IOPS=1, BW=5359KiB/s (5488kB/s)(12.0MiB/2293msec); 0 zone resets clat (msec): min=324, max=1300, avg=740.49, stdev=503.63 lat (msec): min=324, max=1301, avg=742.06, stdev=503.32 clat percentiles (msec): | 1.00th=[ 326], 5.00th=[ 326], 10.00th=[ 326], 20.00th=[ 326], | 30.00th=[ 326], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 1301], 80.00th=[ 1301], 90.00th=[ 1301], 95.00th=[ 1301], | 99.00th=[ 1301], 99.50th=[ 1301], 99.90th=[ 1301], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min=15875, max=15875, per=100.00%, avg=15875.00, stdev= 0.00, samples=1 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 2000=33.33% cpu : usr=0.00%, sys=4.49%, ctx=38, 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=6481KiB/s (6637kB/s), 1620KiB/s-5260KiB/s (1659kB/s-5387kB/s), io=16.0MiB (16.8MB), run=2336-2528msec WRITE: bw=9712KiB/s (9945kB/s), 3241KiB/s-5359KiB/s (3318kB/s-5488kB/s), io=32.0MiB (33.6MB), run=2293-3374msec rand-rw: (groupid=0, jobs=1): err= 0: pid=145352: Thu Jul 30 20:27:29 2026 read: IOPS=1, BW=5563KiB/s (5696kB/s)(12.0MiB/2209msec) clat (msec): min=638, max=751, avg=710.90, stdev=63.04 lat (msec): min=638, max=751, avg=710.90, stdev=63.04 clat percentiles (msec): | 1.00th=[ 642], 5.00th=[ 642], 10.00th=[ 642], 20.00th=[ 642], | 30.00th=[ 642], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 751], 80.00th=[ 751], 90.00th=[ 751], 95.00th=[ 751], | 99.00th=[ 751], 99.50th=[ 751], 99.90th=[ 751], 99.95th=[ 751], | 99.99th=[ 751] bw ( KiB/s): min= 8143, max= 8175, per=100.00%, avg=8159.00, stdev=22.63, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=66.67%, 1000=33.33% cpu : usr=0.00%, sys=14.72%, ctx=282, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145353: Thu Jul 30 20:27:29 2026 read: IOPS=0, BW=1098KiB/s (1124kB/s)(4096KiB/3731msec) clat (nsec): min=794447k, max=794447k, avg=794446903.00, stdev= 0.00 lat (nsec): min=794449k, max=794449k, avg=794449093.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 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= 8143, max= 8143, per=100.00%, avg=8143.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=2196KiB/s (2248kB/s)(8192KiB/3731msec); 0 zone resets clat (msec): min=1121, max=1700, avg=1411.17, stdev=409.42 lat (msec): min=1122, max=1701, avg=1411.54, stdev=409.38 clat percentiles (msec): | 1.00th=[ 1116], 5.00th=[ 1116], 10.00th=[ 1116], 20.00th=[ 1116], | 30.00th=[ 1116], 40.00th=[ 1116], 50.00th=[ 1116], 60.00th=[ 1703], | 70.00th=[ 1703], 80.00th=[ 1703], 90.00th=[ 1703], 95.00th=[ 1703], | 99.00th=[ 1703], 99.50th=[ 1703], 99.90th=[ 1703], 99.95th=[ 1703], | 99.99th=[ 1703] bw ( KiB/s): min= 8192, max= 8192, per=93.28%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 1000=33.33%, 2000=66.67% cpu : usr=0.11%, sys=5.28%, ctx=169, 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=145355: Thu Jul 30 20:27:29 2026 write: IOPS=0, BW=3417KiB/s (3499kB/s)(12.0MiB/3596msec); 0 zone resets clat (msec): min=267, max=1865, avg=1183.95, stdev=824.84 lat (msec): min=268, max=1868, avg=1185.39, stdev=825.08 clat percentiles (msec): | 1.00th=[ 268], 5.00th=[ 268], 10.00th=[ 268], 20.00th=[ 268], | 30.00th=[ 268], 40.00th=[ 1418], 50.00th=[ 1418], 60.00th=[ 1418], | 70.00th=[ 1871], 80.00th=[ 1871], 90.00th=[ 1871], 95.00th=[ 1871], | 99.00th=[ 1871], 99.50th=[ 1871], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 8143, max= 8143, per=92.72%, avg=8143.00, 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=0.00%, sys=3.31%, ctx=57, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=145357: Thu Jul 30 20:27:29 2026 write: IOPS=0, BW=3453KiB/s (3536kB/s)(12.0MiB/3559msec); 0 zone resets clat (msec): min=363, max=1760, avg=1099.43, stdev=701.34 lat (msec): min=363, max=1762, avg=1101.51, stdev=702.65 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 1183], 50.00th=[ 1183], 60.00th=[ 1183], | 70.00th=[ 1754], 80.00th=[ 1754], 90.00th=[ 1754], 95.00th=[ 1754], | 99.00th=[ 1754], 99.50th=[ 1754], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 8159, max= 8175, per=93.00%, avg=8167.00, stdev=11.31, 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=0.00%, sys=4.41%, ctx=59, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4391KiB/s (4497kB/s), 1098KiB/s-5563KiB/s (1124kB/s-5696kB/s), io=16.0MiB (16.8MB), run=2209-3731msec WRITE: bw=8783KiB/s (8993kB/s), 2196KiB/s-3453KiB/s (2248kB/s-3536kB/s), io=32.0MiB (33.6MB), run=3559-3731msec