== sanity test 398b: DIO and buffer IO race ============== 04:07:06 (1785226026) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 6.78057 s, 7.4 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=179894: Tue Jul 28 04:09:42 2026 read: IOPS=11, BW=44.5KiB/s (45.5kB/s)(5992KiB/134742msec) clat (usec): min=45, max=279177, avg=49614.54, stdev=32998.19 lat (usec): min=46, max=279178, avg=49618.62, stdev=32996.56 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 11207], 10.00th=[ 18744], 20.00th=[ 25560], | 30.00th=[ 31589], 40.00th=[ 37487], 50.00th=[ 42730], 60.00th=[ 50070], | 70.00th=[ 58459], 80.00th=[ 69731], 90.00th=[ 87557], 95.00th=[106431], | 99.00th=[181404], 99.50th=[200279], 99.90th=[270533], 99.95th=[278922], | 99.99th=[278922] bw ( KiB/s): min= 7, max= 104, per=25.05%, avg=44.09, stdev=16.24, samples=264 iops : min= 1, max= 26, avg=10.38, stdev= 4.11, samples=264 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6296KiB/134742msec); 0 zone resets clat (usec): min=1106, max=776880, avg=38053.15, stdev=42147.40 lat (usec): min=1108, max=776882, avg=38091.04, stdev=42237.33 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1549], 10.00th=[ 2343], 20.00th=[ 4883], | 30.00th=[ 9110], 40.00th=[ 17171], 50.00th=[ 26870], 60.00th=[ 36963], | 70.00th=[ 47973], 80.00th=[ 66323], 90.00th=[ 89654], 95.00th=[112722], | 99.00th=[162530], 99.50th=[200279], 99.90th=[295699], 99.95th=[775947], | 99.99th=[775947] bw ( KiB/s): min= 7, max= 112, per=25.19%, avg=46.35, stdev=20.62, samples=264 iops : min= 1, max= 28, avg=10.95, stdev= 5.20, samples=264 lat (usec) : 50=0.03%, 100=1.82%, 250=0.16%, 500=0.03%, 750=0.03% lat (msec) : 2=4.20%, 4=4.07%, 10=8.07%, 20=9.08%, 50=38.25% lat (msec) : 100=27.38%, 250=6.67%, 500=0.16%, 1000=0.03% cpu : usr=0.06%, sys=4.70%, ctx=6714, 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=179895: Tue Jul 28 04:09:42 2026 read: IOPS=11, BW=44.1KiB/s (45.2kB/s)(5940KiB/134654msec) clat (usec): min=35, max=272399, avg=50470.30, stdev=31819.99 lat (usec): min=35, max=272400, avg=50472.16, stdev=31819.83 clat percentiles (usec): | 1.00th=[ 60], 5.00th=[ 14353], 10.00th=[ 19792], 20.00th=[ 27132], | 30.00th=[ 32375], 40.00th=[ 38011], 50.00th=[ 44303], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 70779], 90.00th=[ 89654], 95.00th=[106431], | 99.00th=[164627], 99.50th=[185598], 99.90th=[235930], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 95, per=24.89%, avg=43.80, stdev=15.31, samples=264 iops : min= 1, max= 23, avg=10.31, stdev= 3.85, samples=264 write: IOPS=11, BW=47.1KiB/s (48.3kB/s)(6348KiB/134654msec); 0 zone resets clat (usec): min=1172, max=712775, avg=37275.45, stdev=40682.16 lat (usec): min=1173, max=712777, avg=37277.49, stdev=40682.07 clat percentiles (usec): | 1.00th=[ 1303], 5.00th=[ 1516], 10.00th=[ 2180], 20.00th=[ 4555], | 30.00th=[ 8455], 40.00th=[ 17695], 50.00th=[ 27395], 60.00th=[ 35390], | 70.00th=[ 46924], 80.00th=[ 63701], 90.00th=[ 91751], 95.00th=[110625], | 99.00th=[158335], 99.50th=[177210], 99.90th=[221250], 99.95th=[708838], | 99.99th=[708838] bw ( KiB/s): min= 7, max= 119, per=25.30%, avg=46.55, stdev=21.76, samples=265 iops : min= 1, max= 29, avg=11.00, stdev= 5.49, samples=265 lat (usec) : 50=0.03%, 100=1.63%, 250=0.10%, 500=0.03% lat (msec) : 2=4.79%, 4=4.49%, 10=7.55%, 20=8.04%, 50=39.29% lat (msec) : 100=26.69%, 250=7.29%, 500=0.03%, 750=0.03% cpu : usr=0.07%, sys=4.91%, ctx=6725, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179896: Tue Jul 28 04:09:42 2026 read: IOPS=11, BW=44.0KiB/s (46.0kB/s)(6028KiB/134072msec) clat (usec): min=45, max=689104, avg=50263.39, stdev=36302.61 lat (usec): min=45, max=689105, avg=50267.85, stdev=36300.54 clat percentiles (usec): | 1.00th=[ 57], 5.00th=[ 13698], 10.00th=[ 18744], 20.00th=[ 25297], | 30.00th=[ 31589], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 58983], 80.00th=[ 71828], 90.00th=[ 90702], 95.00th=[107480], | 99.00th=[166724], 99.50th=[196084], 99.90th=[287310], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 7, max= 94, per=25.23%, avg=44.41, stdev=16.84, samples=264 iops : min= 1, max= 23, avg=10.46, stdev= 4.27, samples=264 write: IOPS=11, BW=46.7KiB/s (47.8kB/s)(6260KiB/134072msec); 0 zone resets clat (usec): min=1177, max=239147, avg=36929.64, stdev=37705.28 lat (usec): min=1178, max=239149, avg=36933.01, stdev=37705.35 clat percentiles (usec): | 1.00th=[ 1319], 5.00th=[ 1483], 10.00th=[ 2245], 20.00th=[ 4948], | 30.00th=[ 8291], 40.00th=[ 16581], 50.00th=[ 26084], 60.00th=[ 35390], | 70.00th=[ 47449], 80.00th=[ 63177], 90.00th=[ 89654], 95.00th=[115868], | 99.00th=[166724], 99.50th=[181404], 99.90th=[233833], 99.95th=[240124], | 99.99th=[240124] bw ( KiB/s): min= 7, max= 127, per=25.16%, avg=46.30, stdev=21.76, samples=263 iops : min= 1, max= 31, avg=10.94, stdev= 5.48, samples=263 lat (usec) : 50=0.10%, 100=1.73%, 250=0.26% lat (msec) : 2=4.17%, 4=4.85%, 10=8.01%, 20=8.63%, 50=38.22% lat (msec) : 100=26.69%, 250=7.23%, 500=0.10%, 750=0.03% cpu : usr=0.08%, sys=4.78%, ctx=6568, 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=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=179897: Tue Jul 28 04:09:42 2026 read: IOPS=11, BW=44.5KiB/s (45.6kB/s)(6052KiB/135997msec) clat (usec): min=40, max=830416, avg=50468.74, stdev=38004.65 lat (usec): min=41, max=830418, avg=50477.90, stdev=37999.58 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 12649], 10.00th=[ 19792], 20.00th=[ 26084], | 30.00th=[ 32113], 40.00th=[ 37487], 50.00th=[ 43254], 60.00th=[ 50594], | 70.00th=[ 59507], 80.00th=[ 70779], 90.00th=[ 86508], 95.00th=[106431], | 99.00th=[168821], 99.50th=[206570], 99.90th=[312476], 99.95th=[826278], | 99.99th=[826278] bw ( KiB/s): min= 7, max= 103, per=25.16%, avg=44.27, stdev=16.68, samples=266 iops : min= 1, max= 25, avg=10.44, stdev= 4.20, samples=266 write: IOPS=11, BW=45.9KiB/s (46.0kB/s)(6236KiB/135997msec); 0 zone resets clat (usec): min=1080, max=269319, avg=37905.87, stdev=38353.93 lat (usec): min=1081, max=269322, avg=37916.02, stdev=38356.87 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1500], 10.00th=[ 2245], 20.00th=[ 4752], | 30.00th=[ 8717], 40.00th=[ 17171], 50.00th=[ 28181], 60.00th=[ 37487], | 70.00th=[ 48497], 80.00th=[ 64226], 90.00th=[ 92799], 95.00th=[111674], | 99.00th=[160433], 99.50th=[179307], 99.90th=[265290], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 7, max= 103, per=24.70%, avg=45.45, stdev=19.45, samples=267 iops : min= 1, max= 25, avg=10.73, stdev= 4.91, samples=267 lat (usec) : 50=0.16%, 100=1.69%, 250=0.13%, 500=0.03%, 750=0.03% lat (msec) : 2=4.49%, 4=4.36%, 10=7.52%, 20=8.24%, 50=39.00% lat (msec) : 100=27.41%, 250=6.77%, 500=0.13%, 1000=0.03% cpu : usr=0.07%, sys=4.78%, ctx=6640, majf=0, minf=18 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=177KiB/s (181kB/s), 44.1KiB/s-44.0KiB/s (45.2kB/s-46.0kB/s), io=23.4MiB (24.6MB), run=134072-135997msec WRITE: bw=185KiB/s (189kB/s), 45.9KiB/s-47.1KiB/s (46.0kB/s-48.3kB/s), io=24.6MiB (25.7MB), run=134072-135997msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179899: Tue Jul 28 04:10:24 2026 read: IOPS=8, BW=33.8KiB/s (34.6kB/s)(5992KiB/177096msec) clat (msec): min=6, max=759, avg=46.16, stdev=45.50 lat (msec): min=6, max=759, avg=46.16, stdev=45.50 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 67], 90.00th=[ 104], 95.00th=[ 136], | 99.00th=[ 205], 99.50th=[ 228], 99.90th=[ 317], 99.95th=[ 760], | 99.99th=[ 760] bw ( KiB/s): min= 7, max= 128, per=25.40%, avg=34.29, stdev=24.17, samples=339 iops : min= 1, max= 32, avg= 7.90, stdev= 6.10, samples=339 write: IOPS=8, BW=35.6KiB/s (36.4kB/s)(6296KiB/177096msec); 0 zone resets clat (msec): min=12, max=396, avg=68.47, stdev=47.98 lat (msec): min=12, max=396, avg=68.48, stdev=47.98 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 44], 50.00th=[ 52], 60.00th=[ 63], | 70.00th=[ 80], 80.00th=[ 103], 90.00th=[ 136], 95.00th=[ 167], | 99.00th=[ 230], 99.50th=[ 275], 99.90th=[ 351], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 7, max= 119, per=25.05%, avg=35.32, stdev=22.53, samples=346 iops : min= 1, max= 29, avg= 8.16, stdev= 5.68, samples=346 lat (msec) : 10=1.30%, 20=13.74%, 50=44.43%, 100=24.80%, 250=15.17% lat (msec) : 500=0.52%, 1000=0.03% cpu : usr=0.06%, sys=1.95%, ctx=4991, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179900: Tue Jul 28 04:10:24 2026 read: IOPS=8, BW=33.6KiB/s (34.4kB/s)(5940KiB/177025msec) clat (msec): min=5, max=852, avg=46.20, stdev=47.70 lat (msec): min=5, max=852, avg=46.20, stdev=47.70 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 11], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 21], 40.00th=[ 25], 50.00th=[ 29], 60.00th=[ 36], | 70.00th=[ 47], 80.00th=[ 67], 90.00th=[ 110], 95.00th=[ 138], | 99.00th=[ 209], 99.50th=[ 239], 99.90th=[ 330], 99.95th=[ 852], | 99.99th=[ 852] bw ( KiB/s): min= 7, max= 136, per=25.52%, avg=34.45, stdev=24.64, samples=335 iops : min= 1, max= 34, avg= 7.94, stdev= 6.22, samples=335 write: IOPS=8, BW=35.9KiB/s (36.7kB/s)(6348KiB/177025msec); 0 zone resets clat (msec): min=14, max=450, avg=68.19, stdev=49.79 lat (msec): min=14, max=450, avg=68.19, stdev=49.79 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 36], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 101], 90.00th=[ 136], 95.00th=[ 165], | 99.00th=[ 247], 99.50th=[ 279], 99.90th=[ 401], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 7, max= 126, per=25.38%, avg=35.78, stdev=23.35, samples=345 iops : min= 1, max= 31, avg= 8.27, stdev= 5.88, samples=345 lat (msec) : 10=1.50%, 20=13.41%, 50=45.67%, 100=23.57%, 250=15.23% lat (msec) : 500=0.59%, 1000=0.03% cpu : usr=0.06%, sys=1.98%, ctx=4938, 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=179901: Tue Jul 28 04:10:24 2026 read: IOPS=8, BW=34.1KiB/s (34.9kB/s)(6028KiB/176960msec) clat (msec): min=6, max=327, avg=46.36, stdev=41.65 lat (msec): min=6, max=327, avg=46.37, stdev=41.65 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 39], | 70.00th=[ 50], 80.00th=[ 69], 90.00th=[ 104], 95.00th=[ 136], | 99.00th=[ 205], 99.50th=[ 234], 99.90th=[ 288], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 112, per=25.48%, avg=34.40, stdev=23.35, samples=341 iops : min= 1, max= 28, avg= 7.92, stdev= 5.88, samples=341 write: IOPS=8, BW=35.4KiB/s (36.2kB/s)(6260KiB/176960msec); 0 zone resets clat (msec): min=14, max=904, avg=68.32, stdev=53.34 lat (msec): min=14, max=904, avg=68.33, stdev=53.34 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 51], 60.00th=[ 62], | 70.00th=[ 78], 80.00th=[ 100], 90.00th=[ 133], 95.00th=[ 167], | 99.00th=[ 236], 99.50th=[ 292], 99.90th=[ 451], 99.95th=[ 902], | 99.99th=[ 902] bw ( KiB/s): min= 7, max= 111, per=25.04%, avg=35.31, stdev=23.05, samples=345 iops : min= 1, max= 27, avg= 8.15, stdev= 5.81, samples=345 lat (msec) : 10=1.30%, 20=12.43%, 50=46.39%, 100=24.93%, 250=14.32% lat (msec) : 500=0.59%, 1000=0.03% cpu : usr=0.06%, sys=1.97%, ctx=4925, 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=179902: Tue Jul 28 04:10:24 2026 read: IOPS=8, BW=34.2KiB/s (35.1kB/s)(6052KiB/176711msec) clat (msec): min=6, max=328, avg=45.45, stdev=40.73 lat (msec): min=6, max=328, avg=45.45, stdev=40.72 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 14], 20.00th=[ 18], | 30.00th=[ 22], 40.00th=[ 26], 50.00th=[ 31], 60.00th=[ 37], | 70.00th=[ 48], 80.00th=[ 67], 90.00th=[ 102], 95.00th=[ 134], | 99.00th=[ 192], 99.50th=[ 226], 99.90th=[ 300], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 7, max= 136, per=25.73%, avg=34.73, stdev=25.07, samples=338 iops : min= 1, max= 34, avg= 8.01, stdev= 6.32, samples=338 write: IOPS=8, BW=35.3KiB/s (36.1kB/s)(6236KiB/176711msec); 0 zone resets clat (msec): min=13, max=888, avg=69.13, stdev=53.41 lat (msec): min=13, max=888, avg=69.13, stdev=53.41 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 23], 10.00th=[ 26], 20.00th=[ 32], | 30.00th=[ 37], 40.00th=[ 43], 50.00th=[ 50], 60.00th=[ 63], | 70.00th=[ 82], 80.00th=[ 104], 90.00th=[ 136], 95.00th=[ 163], | 99.00th=[ 251], 99.50th=[ 305], 99.90th=[ 351], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 7, max= 111, per=24.94%, avg=35.16, stdev=22.91, samples=344 iops : min= 1, max= 27, avg= 8.11, stdev= 5.77, samples=344 lat (msec) : 10=1.37%, 20=12.86%, 50=46.61%, 100=23.14%, 250=15.33% lat (msec) : 500=0.65%, 1000=0.03% cpu : usr=0.05%, sys=1.97%, ctx=5056, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=136KiB/s (139kB/s), 33.6KiB/s-34.2KiB/s (34.4kB/s-35.1kB/s), io=23.4MiB (24.6MB), run=176711-177096msec WRITE: bw=142KiB/s (145kB/s), 35.3KiB/s-35.9KiB/s (36.1kB/s-36.7kB/s), io=24.6MiB (25.7MB), run=176711-177096msec 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=179951: Tue Jul 28 04:11:09 2026 read: IOPS=11, BW=176KiB/s (181kB/s)(5920KiB/33578msec) clat (usec): min=37, max=269718, avg=47848.31, stdev=35025.59 lat (usec): min=38, max=269719, avg=47849.68, stdev=35025.46 clat percentiles (usec): | 1.00th=[ 46], 5.00th=[ 65], 10.00th=[ 133], 20.00th=[ 22938], | 30.00th=[ 29492], 40.00th=[ 34866], 50.00th=[ 42730], 60.00th=[ 49546], | 70.00th=[ 57934], 80.00th=[ 70779], 90.00th=[ 91751], 95.00th=[113771], | 99.00th=[160433], 99.50th=[196084], 99.90th=[270533], 99.95th=[270533], | 99.99th=[270533] bw ( KiB/s): min= 31, max= 415, per=24.75%, avg=176.44, stdev=77.88, samples=66 iops : min= 1, max= 25, avg=10.24, stdev= 4.88, samples=66 write: IOPS=11, BW=190KiB/s (194kB/s)(6368KiB/33578msec); 0 zone resets clat (usec): min=1461, max=226130, avg=39784.66, stdev=37268.74 lat (usec): min=1463, max=226132, avg=39787.71, stdev=37268.50 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2769], 10.00th=[ 3785], 20.00th=[ 7242], | 30.00th=[ 12387], 40.00th=[ 21627], 50.00th=[ 31851], 60.00th=[ 41157], | 70.00th=[ 50070], 80.00th=[ 65799], 90.00th=[ 86508], 95.00th=[113771], | 99.00th=[170918], 99.50th=[196084], 99.90th=[225444], 99.95th=[225444], | 99.99th=[225444] bw ( KiB/s): min= 31, max= 542, per=25.25%, avg=189.35, stdev=94.59, samples=66 iops : min= 1, max= 33, avg=11.08, stdev= 5.99, samples=66 lat (usec) : 50=0.65%, 100=3.91%, 250=0.26%, 750=0.26% lat (msec) : 2=0.65%, 4=4.82%, 10=8.59%, 20=9.38%, 50=36.98% lat (msec) : 100=27.08%, 250=7.29%, 500=0.13% cpu : usr=0.06%, sys=5.11%, ctx=1711, 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=179952: Tue Jul 28 04:11:09 2026 read: IOPS=11, BW=179KiB/s (183kB/s)(5744KiB/32151msec) clat (usec): min=42, max=164848, avg=47447.20, stdev=31650.76 lat (usec): min=42, max=164849, avg=47448.50, stdev=31650.81 clat percentiles (usec): | 1.00th=[ 52], 5.00th=[ 65], 10.00th=[ 89], 20.00th=[ 24511], | 30.00th=[ 30802], 40.00th=[ 38011], 50.00th=[ 43779], 60.00th=[ 51119], | 70.00th=[ 60031], 80.00th=[ 69731], 90.00th=[ 88605], 95.00th=[103285], | 99.00th=[145753], 99.50th=[162530], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 31, max= 316, per=25.09%, avg=178.89, stdev=63.36, samples=63 iops : min= 1, max= 19, avg=10.41, stdev= 4.03, samples=63 write: IOPS=12, BW=204KiB/s (208kB/s)(6544KiB/32151msec); 0 zone resets clat (usec): min=1813, max=156443, avg=36833.69, stdev=34872.00 lat (usec): min=1815, max=156445, avg=36836.38, stdev=34872.23 clat percentiles (usec): | 1.00th=[ 1926], 5.00th=[ 2769], 10.00th=[ 4146], 20.00th=[ 6783], | 30.00th=[ 10421], 40.00th=[ 16909], 50.00th=[ 27132], 60.00th=[ 36963], | 70.00th=[ 45876], 80.00th=[ 63701], 90.00th=[ 90702], 95.00th=[110625], | 99.00th=[141558], 99.50th=[149947], 99.90th=[156238], 99.95th=[156238], | 99.99th=[156238] bw ( KiB/s): min= 62, max= 407, per=27.03%, avg=202.76, stdev=82.37, samples=63 iops : min= 3, max= 25, avg=11.92, stdev= 5.21, samples=63 lat (usec) : 50=0.26%, 100=4.43%, 250=0.39%, 500=0.13%, 750=0.13% lat (msec) : 2=1.69%, 4=4.04%, 10=10.42%, 20=9.11%, 50=35.42% lat (msec) : 100=27.21%, 250=6.77% cpu : usr=0.09%, sys=5.47%, ctx=1757, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179953: Tue Jul 28 04:11:09 2026 read: IOPS=12, BW=196KiB/s (201kB/s)(6256KiB/31934msec) clat (usec): min=39, max=200570, avg=44598.61, stdev=33232.73 lat (usec): min=40, max=200572, avg=44599.87, stdev=33232.78 clat percentiles (usec): | 1.00th=[ 47], 5.00th=[ 61], 10.00th=[ 79], 20.00th=[ 20317], | 30.00th=[ 27395], 40.00th=[ 33817], 50.00th=[ 40109], 60.00th=[ 46400], | 70.00th=[ 54789], 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[106431], | 99.00th=[143655], 99.50th=[183501], 99.90th=[200279], 99.95th=[200279], | 99.99th=[200279] bw ( KiB/s): min= 63, max= 383, per=27.53%, avg=196.26, stdev=73.60, samples=62 iops : min= 3, max= 23, avg=11.50, stdev= 4.62, samples=62 write: IOPS=11, BW=189KiB/s (193kB/s)(6032KiB/31934msec); 0 zone resets clat (usec): min=1688, max=258412, avg=38379.09, stdev=39423.70 lat (usec): min=1691, max=258415, avg=38383.20, stdev=39424.44 clat percentiles (usec): | 1.00th=[ 1876], 5.00th=[ 2606], 10.00th=[ 4178], 20.00th=[ 7308], | 30.00th=[ 12125], 40.00th=[ 19268], 50.00th=[ 26346], 60.00th=[ 35390], | 70.00th=[ 45351], 80.00th=[ 62129], 90.00th=[ 90702], 95.00th=[114820], | 99.00th=[175113], 99.50th=[252707], 99.90th=[258999], 99.95th=[258999], | 99.99th=[258999] bw ( KiB/s): min= 31, max= 351, per=24.74%, avg=185.55, stdev=74.16, samples=62 iops : min= 1, max= 21, avg=10.84, stdev= 4.68, samples=62 lat (usec) : 50=0.78%, 100=5.73%, 250=0.26%, 500=0.26% lat (msec) : 2=1.30%, 4=3.78%, 10=8.07%, 20=9.64%, 50=38.41% lat (msec) : 100=24.74%, 250=6.77%, 500=0.26% cpu : usr=0.07%, sys=5.82%, ctx=1700, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179954: Tue Jul 28 04:11:09 2026 read: IOPS=11, BW=191KiB/s (195kB/s)(6032KiB/31662msec) clat (usec): min=42, max=220489, avg=44185.69, stdev=30910.34 lat (usec): min=43, max=220490, avg=44188.67, stdev=30908.28 clat percentiles (usec): | 1.00th=[ 49], 5.00th=[ 64], 10.00th=[ 77], 20.00th=[ 20841], | 30.00th=[ 27919], 40.00th=[ 34866], 50.00th=[ 40109], 60.00th=[ 46924], | 70.00th=[ 56361], 80.00th=[ 67634], 90.00th=[ 85459], 95.00th=[ 98042], | 99.00th=[132645], 99.50th=[158335], 99.90th=[221250], 99.95th=[221250], | 99.99th=[221250] bw ( KiB/s): min= 31, max= 412, per=26.56%, avg=189.39, stdev=77.28, samples=62 iops : min= 1, max= 25, avg=11.06, stdev= 4.85, samples=62 write: IOPS=12, BW=198KiB/s (202kB/s)(6256KiB/31662msec); 0 zone resets clat (usec): min=1606, max=180478, avg=38251.56, stdev=36687.88 lat (usec): min=1610, max=180480, avg=38253.86, stdev=36687.87 clat percentiles (usec): | 1.00th=[ 1795], 5.00th=[ 2409], 10.00th=[ 3556], 20.00th=[ 6128], | 30.00th=[ 9372], 40.00th=[ 15008], 50.00th=[ 25822], 60.00th=[ 38536], | 70.00th=[ 53740], 80.00th=[ 65274], 90.00th=[ 92799], 95.00th=[115868], | 99.00th=[149947], 99.50th=[179307], 99.90th=[181404], 99.95th=[181404], | 99.99th=[181404] bw ( KiB/s): min= 31, max= 443, per=26.40%, avg=198.03, stdev=72.68, samples=62 iops : min= 1, max= 27, avg=11.63, stdev= 4.59, samples=62 lat (usec) : 50=0.52%, 100=5.08%, 250=0.52%, 1000=0.13% lat (msec) : 2=2.08%, 4=4.30%, 10=10.42%, 20=8.59%, 50=33.59% lat (msec) : 100=28.78%, 250=5.99% cpu : usr=0.08%, sys=5.16%, ctx=1673, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=713KiB/s (730kB/s), 176KiB/s-196KiB/s (181kB/s-201kB/s), io=23.4MiB (24.5MB), run=31662-33578msec WRITE: bw=750KiB/s (769kB/s), 189KiB/s-204KiB/s (193kB/s-208kB/s), io=24.6MiB (25.8MB), run=31662-33578msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179946: Tue Jul 28 04:11:19 2026 read: IOPS=8, BW=134KiB/s (137kB/s)(5920KiB/44297msec) clat (msec): min=9, max=232, avg=46.52, stdev=36.76 lat (msec): min=9, max=232, avg=46.53, stdev=36.76 clat percentiles (msec): | 1.00th=[ 11], 5.00th=[ 14], 10.00th=[ 17], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 41], | 70.00th=[ 54], 80.00th=[ 67], 90.00th=[ 94], 95.00th=[ 126], | 99.00th=[ 169], 99.50th=[ 220], 99.90th=[ 234], 99.95th=[ 234], | 99.99th=[ 234] bw ( KiB/s): min= 31, max= 413, per=24.91%, avg=133.52, stdev=82.80, samples=86 iops : min= 1, max= 25, avg= 7.52, stdev= 5.21, samples=86 write: IOPS=8, BW=144KiB/s (147kB/s)(6368KiB/44297msec); 0 zone resets clat (msec): min=16, max=377, avg=67.66, stdev=44.83 lat (msec): min=16, max=377, avg=67.67, stdev=44.83 clat percentiles (msec): | 1.00th=[ 18], 5.00th=[ 26], 10.00th=[ 30], 20.00th=[ 35], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 78], 80.00th=[ 90], 90.00th=[ 127], 95.00th=[ 155], | 99.00th=[ 239], 99.50th=[ 268], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 31, max= 380, per=25.32%, avg=142.83, stdev=80.11, samples=87 iops : min= 1, max= 23, avg= 8.11, stdev= 5.04, samples=87 lat (msec) : 10=0.39%, 20=10.68%, 50=46.09%, 100=29.56%, 250=12.89% lat (msec) : 500=0.39% cpu : usr=0.04%, sys=2.07%, ctx=1172, 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=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=179947: Tue Jul 28 04:11:19 2026 read: IOPS=8, BW=129KiB/s (132kB/s)(5744KiB/44604msec) clat (msec): min=6, max=315, avg=47.32, stdev=40.63 lat (msec): min=6, max=315, avg=47.32, stdev=40.63 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 29], 50.00th=[ 34], 60.00th=[ 40], | 70.00th=[ 49], 80.00th=[ 71], 90.00th=[ 99], 95.00th=[ 130], | 99.00th=[ 197], 99.50th=[ 234], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 31, max= 347, per=24.88%, avg=133.35, stdev=82.21, samples=85 iops : min= 1, max= 21, avg= 7.52, stdev= 5.17, samples=85 write: IOPS=9, BW=147KiB/s (150kB/s)(6544KiB/44604msec); 0 zone resets clat (msec): min=14, max=263, avg=67.36, stdev=42.16 lat (msec): min=14, max=263, avg=67.36, stdev=42.16 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 38], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 67], | 70.00th=[ 80], 80.00th=[ 99], 90.00th=[ 127], 95.00th=[ 153], | 99.00th=[ 194], 99.50th=[ 218], 99.90th=[ 264], 99.95th=[ 264], | 99.99th=[ 264] bw ( KiB/s): min= 31, max= 415, per=26.20%, avg=147.76, stdev=86.44, samples=87 iops : min= 1, max= 25, avg= 8.43, stdev= 5.41, samples=87 lat (msec) : 10=1.04%, 20=9.77%, 50=45.57%, 100=29.04%, 250=14.32% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=2.03%, ctx=1155, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179948: Tue Jul 28 04:11:19 2026 read: IOPS=8, BW=140KiB/s (143kB/s)(6256KiB/44643msec) clat (msec): min=7, max=319, avg=47.34, stdev=41.26 lat (msec): min=7, max=319, avg=47.34, stdev=41.26 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 13], 10.00th=[ 16], 20.00th=[ 20], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 32], 60.00th=[ 41], | 70.00th=[ 48], 80.00th=[ 71], 90.00th=[ 105], 95.00th=[ 138], | 99.00th=[ 190], 99.50th=[ 230], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 31, max= 415, per=26.76%, avg=143.45, stdev=94.86, samples=86 iops : min= 1, max= 25, avg= 8.15, stdev= 5.93, samples=86 write: IOPS=8, BW=135KiB/s (138kB/s)(6032KiB/44643msec); 0 zone resets clat (msec): min=15, max=252, avg=68.91, stdev=46.71 lat (msec): min=15, max=252, avg=68.92, stdev=46.71 clat percentiles (msec): | 1.00th=[ 19], 5.00th=[ 23], 10.00th=[ 27], 20.00th=[ 33], | 30.00th=[ 39], 40.00th=[ 45], 50.00th=[ 54], 60.00th=[ 65], | 70.00th=[ 82], 80.00th=[ 103], 90.00th=[ 136], 95.00th=[ 169], | 99.00th=[ 232], 99.50th=[ 243], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 30, max= 349, per=23.76%, avg=134.01, stdev=79.96, samples=88 iops : min= 1, max= 21, avg= 7.56, stdev= 5.05, samples=88 lat (msec) : 10=1.04%, 20=11.46%, 50=46.48%, 100=25.26%, 250=15.49% lat (msec) : 500=0.26% cpu : usr=0.04%, sys=1.99%, ctx=1224, 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=179949: Tue Jul 28 04:11:19 2026 read: IOPS=8, BW=137KiB/s (141kB/s)(6032KiB/43939msec) clat (msec): min=7, max=232, avg=44.02, stdev=36.73 lat (msec): min=7, max=232, avg=44.03, stdev=36.73 clat percentiles (msec): | 1.00th=[ 9], 5.00th=[ 12], 10.00th=[ 16], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 59], 90.00th=[ 92], 95.00th=[ 121], | 99.00th=[ 190], 99.50th=[ 228], 99.90th=[ 232], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 31, max= 479, per=25.86%, avg=138.60, stdev=89.69, samples=84 iops : min= 1, max= 29, avg= 7.85, stdev= 5.64, samples=84 write: IOPS=8, BW=142KiB/s (146kB/s)(6256KiB/43939msec); 0 zone resets clat (msec): min=13, max=276, avg=69.48, stdev=44.01 lat (msec): min=13, max=276, avg=69.50, stdev=44.03 clat percentiles (msec): | 1.00th=[ 20], 5.00th=[ 24], 10.00th=[ 29], 20.00th=[ 34], | 30.00th=[ 40], 40.00th=[ 46], 50.00th=[ 55], 60.00th=[ 65], | 70.00th=[ 83], 80.00th=[ 106], 90.00th=[ 136], 95.00th=[ 157], | 99.00th=[ 201], 99.50th=[ 236], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 31, max= 351, per=25.40%, avg=143.26, stdev=78.21, samples=85 iops : min= 1, max= 21, avg= 8.14, stdev= 4.91, samples=85 lat (msec) : 10=1.04%, 20=9.38%, 50=48.05%, 100=26.04%, 250=15.36% lat (msec) : 500=0.13% cpu : usr=0.06%, sys=2.10%, ctx=1251, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=537KiB/s (549kB/s), 129KiB/s-140KiB/s (132kB/s-143kB/s), io=23.4MiB (24.5MB), run=43939-44643msec WRITE: bw=564KiB/s (578kB/s), 135KiB/s-147KiB/s (138kB/s-150kB/s), io=24.6MiB (25.8MB), run=43939-44643msec 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=179974: Tue Jul 28 04:11:35 2026 read: IOPS=1, BW=1940KiB/s (1987kB/s)(7168KiB/3694msec) clat (msec): min=149, max=337, avg=247.50, stdev=70.89 lat (msec): min=149, max=337, avg=247.50, stdev=70.88 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 194], | 30.00th=[ 194], 40.00th=[ 194], 50.00th=[ 249], 60.00th=[ 296], | 70.00th=[ 296], 80.00th=[ 313], 90.00th=[ 338], 95.00th=[ 338], | 99.00th=[ 338], 99.50th=[ 338], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 1939, max= 3976, per=60.64%, avg=2735.00, stdev=976.98, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 write: IOPS=1, BW=1386KiB/s (1419kB/s)(5120KiB/3694msec); 0 zone resets clat (msec): min=251, max=589, avg=392.00, stdev=132.39 lat (msec): min=251, max=589, avg=392.10, stdev=132.38 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 251], 10.00th=[ 251], 20.00th=[ 251], | 30.00th=[ 305], 40.00th=[ 305], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 447], 80.00th=[ 447], 90.00th=[ 592], 95.00th=[ 592], | 99.00th=[ 592], 99.50th=[ 592], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 1762, max= 4087, per=41.11%, avg=2596.00, stdev=1294.27, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 250=33.33%, 500=58.33%, 750=8.33% cpu : usr=0.00%, sys=17.06%, ctx=302, 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=179975: Tue Jul 28 04:11:35 2026 read: IOPS=0, BW=451KiB/s (462kB/s)(2048KiB/4541msec) clat (usec): min=573, max=659713, avg=330143.55, stdev=466082.55 lat (usec): min=575, max=659731, avg=330153.30, stdev=466093.74 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[658506], | 70.00th=[658506], 80.00th=[658506], 90.00th=[658506], 95.00th=[658506], | 99.00th=[658506], 99.50th=[658506], 99.90th=[658506], 99.95th=[658506], | 99.99th=[658506] bw ( KiB/s): min= 1424, max= 1762, per=35.32%, avg=1593.00, stdev=239.00, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2255KiB/s (2309kB/s)(10.0MiB/4541msec); 0 zone resets clat (msec): min=153, max=684, avg=387.43, stdev=173.68 lat (msec): min=153, max=684, avg=387.61, stdev=173.62 clat percentiles (msec): | 1.00th=[ 155], 5.00th=[ 155], 10.00th=[ 155], 20.00th=[ 213], | 30.00th=[ 271], 40.00th=[ 326], 50.00th=[ 326], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 477], 90.00th=[ 651], 95.00th=[ 684], | 99.00th=[ 684], 99.50th=[ 684], 99.90th=[ 684], 99.95th=[ 684], | 99.99th=[ 684] bw ( KiB/s): min= 1762, max= 3976, per=40.13%, avg=2533.71, stdev=977.39, samples=7 iops : min= 1, max= 3, avg= 1.57, stdev= 0.98, samples=7 lat (usec) : 750=8.33% lat (msec) : 250=16.67%, 500=50.00%, 750=25.00% cpu : usr=0.00%, sys=14.52%, ctx=137, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179976: Tue Jul 28 04:11:35 2026 read: IOPS=1, BW=1728KiB/s (1769kB/s)(6144KiB/3556msec) clat (msec): min=3, max=380, avg=225.37, stdev=140.04 lat (msec): min=3, max=380, avg=225.37, stdev=140.04 clat percentiles (msec): | 1.00th=[ 4], 5.00th=[ 4], 10.00th=[ 4], 20.00th=[ 148], | 30.00th=[ 148], 40.00th=[ 190], 50.00th=[ 190], 60.00th=[ 288], | 70.00th=[ 342], 80.00th=[ 342], 90.00th=[ 380], 95.00th=[ 380], | 99.00th=[ 380], 99.50th=[ 380], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 1762, max= 3976, per=71.52%, avg=3225.33, stdev=1267.43, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 write: IOPS=1, BW=1728KiB/s (1769kB/s)(6144KiB/3556msec); 0 zone resets clat (msec): min=184, max=613, avg=366.96, stdev=185.30 lat (msec): min=184, max=613, avg=367.05, stdev=185.28 clat percentiles (msec): | 1.00th=[ 184], 5.00th=[ 184], 10.00th=[ 184], 20.00th=[ 190], | 30.00th=[ 190], 40.00th=[ 241], 50.00th=[ 241], 60.00th=[ 464], | 70.00th=[ 510], 80.00th=[ 510], 90.00th=[ 617], 95.00th=[ 617], | 99.00th=[ 617], 99.50th=[ 617], 99.90th=[ 617], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 1762, max= 3938, per=41.46%, avg=2617.75, stdev=996.99, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 4=8.33%, 250=41.67%, 500=33.33%, 750=16.67% cpu : usr=0.00%, sys=16.57%, ctx=199, 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=179977: Tue Jul 28 04:11:35 2026 read: IOPS=1, BW=1184KiB/s (1213kB/s)(5120KiB/4323msec) clat (usec): min=477, max=541235, avg=189822.72, stdev=222477.33 lat (usec): min=479, max=541236, avg=189824.21, stdev=222477.29 clat percentiles (usec): | 1.00th=[ 478], 5.00th=[ 478], 10.00th=[ 478], 20.00th=[ 478], | 30.00th=[ 1565], 40.00th=[ 1565], 50.00th=[164627], 60.00th=[164627], | 70.00th=[240124], 80.00th=[240124], 90.00th=[541066], 95.00th=[541066], | 99.00th=[541066], 99.50th=[541066], 99.90th=[541066], 99.95th=[541066], | 99.99th=[541066] bw ( KiB/s): min= 1762, max= 5907, per=85.02%, avg=3834.50, stdev=2930.96, samples=2 iops : min= 1, max= 5, avg= 3.00, stdev= 2.83, samples=2 write: IOPS=1, BW=1658KiB/s (1698kB/s)(7168KiB/4323msec); 0 zone resets clat (msec): min=210, max=732, avg=481.14, stdev=186.79 lat (msec): min=210, max=733, avg=481.23, stdev=186.80 clat percentiles (msec): | 1.00th=[ 211], 5.00th=[ 211], 10.00th=[ 211], 20.00th=[ 326], | 30.00th=[ 414], 40.00th=[ 414], 50.00th=[ 435], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 651], 90.00th=[ 735], 95.00th=[ 735], | 99.00th=[ 735], 99.50th=[ 735], 99.90th=[ 735], 99.95th=[ 735], | 99.99th=[ 735] bw ( KiB/s): min= 1939, max= 4087, per=39.82%, avg=2514.25, stdev=1049.36, samples=4 iops : min= 1, max= 3, avg= 1.50, stdev= 1.00, samples=4 lat (usec) : 500=8.33% lat (msec) : 2=8.33%, 250=25.00%, 500=25.00%, 750=33.33% cpu : usr=0.00%, sys=13.79%, ctx=220, 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=4510KiB/s (4618kB/s), 451KiB/s-1940KiB/s (462kB/s-1987kB/s), io=20.0MiB (20.0MB), run=3556-4541msec WRITE: bw=6314KiB/s (6466kB/s), 1386KiB/s-2255KiB/s (1419kB/s-2309kB/s), io=28.0MiB (29.4MB), run=3556-4541msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179968: Tue Jul 28 04:11:36 2026 read: IOPS=1, BW=1964KiB/s (2011kB/s)(7168KiB/3650msec) clat (msec): min=89, max=315, avg=160.54, stdev=89.06 lat (msec): min=89, max=315, avg=160.54, stdev=89.06 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 90], 10.00th=[ 90], 20.00th=[ 105], | 30.00th=[ 113], 40.00th=[ 113], 50.00th=[ 118], 60.00th=[ 124], | 70.00th=[ 124], 80.00th=[ 259], 90.00th=[ 317], 95.00th=[ 317], | 99.00th=[ 317], 99.50th=[ 317], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 2043, max= 3968, per=69.11%, avg=2732.75, stdev=911.02, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1403KiB/s (1436kB/s)(5120KiB/3650msec); 0 zone resets clat (msec): min=240, max=850, avg=478.04, stdev=291.05 lat (msec): min=240, max=850, avg=478.13, stdev=291.06 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 241], 10.00th=[ 241], 20.00th=[ 241], | 30.00th=[ 255], 40.00th=[ 255], 50.00th=[ 313], 60.00th=[ 313], | 70.00th=[ 735], 80.00th=[ 735], 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= 1984, max= 4015, per=48.42%, avg=2680.67, stdev=1155.94, samples=3 iops : min= 1, max= 3, avg= 1.67, stdev= 1.15, samples=3 lat (msec) : 100=8.33%, 250=41.67%, 500=33.33%, 750=8.33%, 1000=8.33% cpu : usr=0.00%, sys=5.12%, ctx=89, 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=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=179969: Tue Jul 28 04:11:36 2026 read: IOPS=0, BW=395KiB/s (405kB/s)(2048KiB/5179msec) clat (msec): min=118, max=937, avg=527.89, stdev=578.63 lat (msec): min=118, max=937, avg=527.89, stdev=578.63 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 120], 10.00th=[ 120], 20.00th=[ 120], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 120], 60.00th=[ 936], | 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= 1570, max= 2048, per=45.75%, avg=1809.00, stdev=338.00, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1977KiB/s (2025kB/s)(10.0MiB/5179msec); 0 zone resets clat (msec): min=200, max=542, avg=403.53, stdev=127.71 lat (msec): min=200, max=543, avg=403.83, stdev=127.84 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 201], 10.00th=[ 201], 20.00th=[ 251], | 30.00th=[ 292], 40.00th=[ 305], 50.00th=[ 464], 60.00th=[ 477], | 70.00th=[ 481], 80.00th=[ 489], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 1570, max= 4096, per=40.72%, avg=2254.00, stdev=829.83, samples=7 iops : min= 1, max= 4, avg= 1.43, stdev= 1.13, samples=7 lat (msec) : 250=16.67%, 500=58.33%, 750=16.67%, 1000=8.33% cpu : usr=0.04%, sys=6.06%, ctx=107, 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=179970: Tue Jul 28 04:11:36 2026 read: IOPS=1, BW=1257KiB/s (1288kB/s)(6144KiB/4886msec) clat (msec): min=80, max=743, avg=308.30, stdev=264.49 lat (msec): min=80, max=743, avg=308.31, stdev=264.48 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 82], 10.00th=[ 82], 20.00th=[ 129], | 30.00th=[ 129], 40.00th=[ 165], 50.00th=[ 165], 60.00th=[ 211], | 70.00th=[ 523], 80.00th=[ 523], 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= 2039, max= 4087, per=64.63%, avg=2555.50, stdev=1021.01, samples=4 iops : min= 1, max= 3, avg= 2.00, stdev= 0.82, samples=4 write: IOPS=1, BW=1257KiB/s (1288kB/s)(6144KiB/4886msec); 0 zone resets clat (msec): min=144, max=946, avg=483.91, stdev=373.95 lat (msec): min=145, max=946, avg=484.14, stdev=374.05 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 157], 60.00th=[ 693], | 70.00th=[ 810], 80.00th=[ 810], 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= 2007, max= 2917, per=40.67%, avg=2251.50, stdev=443.96, samples=4 iops : min= 1, max= 2, avg= 1.25, stdev= 0.50, samples=4 lat (msec) : 100=8.33%, 250=50.00%, 750=25.00%, 1000=16.67% cpu : usr=0.00%, sys=3.87%, ctx=63, 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=179971: Tue Jul 28 04:11:36 2026 read: IOPS=1, BW=1140KiB/s (1167kB/s)(5120KiB/4492msec) clat (msec): min=97, max=1214, avg=451.67, stdev=454.20 lat (msec): min=97, max=1214, avg=451.67, stdev=454.20 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 99], 10.00th=[ 99], 20.00th=[ 99], | 30.00th=[ 207], 40.00th=[ 207], 50.00th=[ 222], 60.00th=[ 222], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 1217], 95.00th=[ 1217], | 99.00th=[ 1217], 99.50th=[ 1217], 99.90th=[ 1217], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 4079, max= 4096, per=100.00%, avg=4087.50, stdev=12.02, samples=2 iops : min= 3, max= 4, avg= 3.50, stdev= 0.71, samples=2 write: IOPS=1, BW=1596KiB/s (1634kB/s)(7168KiB/4492msec); 0 zone resets clat (msec): min=142, max=503, avg=314.35, stdev=142.42 lat (msec): min=142, max=503, avg=314.72, stdev=142.70 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 142], 10.00th=[ 142], 20.00th=[ 159], | 30.00th=[ 224], 40.00th=[ 224], 50.00th=[ 330], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 435], 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= 1984, max= 2951, per=40.76%, avg=2256.50, stdev=463.91, samples=4 iops : min= 1, max= 2, avg= 1.50, stdev= 0.58, samples=4 lat (msec) : 100=8.33%, 250=41.67%, 500=25.00%, 750=16.67%, 2000=8.33% cpu : usr=0.00%, sys=6.23%, ctx=118, 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=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=3954KiB/s (4049kB/s), 395KiB/s-1964KiB/s (405kB/s-2011kB/s), io=20.0MiB (20.0MB), run=3650-5179msec WRITE: bw=5536KiB/s (5669kB/s), 1257KiB/s-1977KiB/s (1288kB/s-2025kB/s), io=28.0MiB (29.4MB), run=3650-5179msec 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=179986: Tue Jul 28 04:11:50 2026 read: IOPS=0, BW=2428KiB/s (2486kB/s)(12.0MiB/5061msec) clat (msec): min=744, max=3227, avg=1657.55, stdev=1365.53 lat (msec): min=744, max=3227, avg=1657.55, stdev=1365.53 clat percentiles (msec): | 1.00th=[ 743], 5.00th=[ 743], 10.00th=[ 743], 20.00th=[ 743], | 30.00th=[ 743], 40.00th=[ 1003], 50.00th=[ 1003], 60.00th=[ 1003], | 70.00th=[ 3239], 80.00th=[ 3239], 90.00th=[ 3239], 95.00th=[ 3239], | 99.00th=[ 3239], 99.50th=[ 3239], 99.90th=[ 3239], 99.95th=[ 3239], | 99.99th=[ 3239] 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=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=7.98%, ctx=320, 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=179987: Tue Jul 28 04:11:50 2026 read: IOPS=0, BW=791KiB/s (810kB/s)(4096KiB/5181msec) clat (nsec): min=3267.9M, max=3267.9M, avg=3267868895.00, stdev= 0.00 lat (nsec): min=3267.9M, max=3267.9M, avg=3267869748.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3272], 5.00th=[ 3272], 10.00th=[ 3272], 20.00th=[ 3272], | 30.00th=[ 3272], 40.00th=[ 3272], 50.00th=[ 3272], 60.00th=[ 3272], | 70.00th=[ 3272], 80.00th=[ 3272], 90.00th=[ 3272], 95.00th=[ 3272], | 99.00th=[ 3272], 99.50th=[ 3272], 99.90th=[ 3272], 99.95th=[ 3272], | 99.99th=[ 3272] 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=1581KiB/s (1619kB/s)(8192KiB/5181msec); 0 zone resets clat (msec): min=596, max=1239, avg=918.01, stdev=455.16 lat (msec): min=597, max=1242, avg=919.71, stdev=456.22 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 1234], | 70.00th=[ 1234], 80.00th=[ 1234], 90.00th=[ 1234], 95.00th=[ 1234], | 99.00th=[ 1234], 99.50th=[ 1234], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1234] bw ( KiB/s): min= 7968, max= 7968, per=100.00%, avg=7968.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=5.64%, ctx=564, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179989: Tue Jul 28 04:11:50 2026 write: IOPS=0, BW=3317KiB/s (3397kB/s)(12.0MiB/3704msec); 0 zone resets clat (msec): min=330, max=2870, avg=1184.05, stdev=1460.14 lat (msec): min=331, max=2870, avg=1184.52, stdev=1460.08 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 330], 10.00th=[ 330], 20.00th=[ 330], | 30.00th=[ 330], 40.00th=[ 351], 50.00th=[ 351], 60.00th=[ 351], | 70.00th=[ 2869], 80.00th=[ 2869], 90.00th=[ 2869], 95.00th=[ 2869], | 99.00th=[ 2869], 99.50th=[ 2869], 99.90th=[ 2869], 99.95th=[ 2869], | 99.99th=[ 2869] bw ( KiB/s): min= 8126, max= 8126, per=100.00%, avg=8126.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=3.83%, ctx=66, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179991: Tue Jul 28 04:11:50 2026 write: IOPS=0, BW=2723KiB/s (2789kB/s)(12.0MiB/4512msec); 0 zone resets clat (msec): min=394, max=2550, avg=1416.61, stdev=1082.08 lat (msec): min=395, max=2550, avg=1417.45, stdev=1082.01 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 1301], 50.00th=[ 1301], 60.00th=[ 1301], | 70.00th=[ 2534], 80.00th=[ 2534], 90.00th=[ 2534], 95.00th=[ 2534], | 99.00th=[ 2534], 99.50th=[ 2534], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 8126, max= 8175, per=100.00%, avg=8150.50, stdev=34.65, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.02%, sys=3.04%, ctx=71, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3162KiB/s (3238kB/s), 791KiB/s-2428KiB/s (810kB/s-2486kB/s), io=16.0MiB (16.8MB), run=5061-5181msec WRITE: bw=6325KiB/s (6476kB/s), 1581KiB/s-3317KiB/s (1619kB/s-3397kB/s), io=32.0MiB (33.6MB), run=3704-5181msec rand-rw: (groupid=0, jobs=1): err= 0: pid=179988: Tue Jul 28 04:11:51 2026 read: IOPS=0, BW=2549KiB/s (2611kB/s)(12.0MiB/4820msec) clat (msec): min=553, max=3438, avg=1579.49, stdev=1612.94 lat (msec): min=553, max=3438, avg=1579.50, stdev=1612.94 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 558], 10.00th=[ 558], 20.00th=[ 558], | 30.00th=[ 558], 40.00th=[ 743], 50.00th=[ 743], 60.00th=[ 743], | 70.00th=[ 3440], 80.00th=[ 3440], 90.00th=[ 3440], 95.00th=[ 3440], | 99.00th=[ 3440], 99.50th=[ 3440], 99.90th=[ 3440], 99.95th=[ 3440], | 99.99th=[ 3440] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=66.67%, >=2000=33.33% cpu : usr=0.00%, sys=2.26%, ctx=60, 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=179990: Tue Jul 28 04:11:51 2026 read: IOPS=0, BW=751KiB/s (769kB/s)(4096KiB/5452msec) clat (nsec): min=3875.0M, max=3875.0M, avg=3875048546.00, stdev= 0.00 lat (nsec): min=3875.1M, max=3875.1M, avg=3875051136.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 3876], 5.00th=[ 3876], 10.00th=[ 3876], 20.00th=[ 3876], | 30.00th=[ 3876], 40.00th=[ 3876], 50.00th=[ 3876], 60.00th=[ 3876], | 70.00th=[ 3876], 80.00th=[ 3876], 90.00th=[ 3876], 95.00th=[ 3876], | 99.00th=[ 3876], 99.50th=[ 3876], 99.90th=[ 3876], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 8159, max= 8159, per=100.00%, avg=8159.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=0, BW=1503KiB/s (1539kB/s)(8192KiB/5452msec); 0 zone resets clat (msec): min=298, max=1171, avg=734.93, stdev=617.84 lat (msec): min=298, max=1172, avg=735.35, stdev=617.78 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 300], 10.00th=[ 300], 20.00th=[ 300], | 30.00th=[ 300], 40.00th=[ 300], 50.00th=[ 300], 60.00th=[ 1167], | 70.00th=[ 1167], 80.00th=[ 1167], 90.00th=[ 1167], 95.00th=[ 1167], | 99.00th=[ 1167], 99.50th=[ 1167], 99.90th=[ 1167], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 8175, max= 8175, per=100.00%, avg=8175.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=1.80%, ctx=48, 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=179992: Tue Jul 28 04:11:51 2026 write: IOPS=0, BW=2274KiB/s (2328kB/s)(12.0MiB/5404msec); 0 zone resets clat (msec): min=563, max=3734, avg=1748.06, stdev=1730.71 lat (msec): min=564, max=3735, avg=1748.59, stdev=1730.96 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 944], 50.00th=[ 944], 60.00th=[ 944], | 70.00th=[ 3742], 80.00th=[ 3742], 90.00th=[ 3742], 95.00th=[ 3742], | 99.00th=[ 3742], 99.50th=[ 3742], 99.90th=[ 3742], 99.95th=[ 3742], | 99.99th=[ 3742] bw ( KiB/s): min= 8110, max= 8175, per=100.00%, avg=8142.50, stdev=45.96, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=33.33%, 1000=33.33%, >=2000=33.33% cpu : usr=0.04%, sys=4.81%, ctx=118, majf=0, minf=7 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=179993: Tue Jul 28 04:11:51 2026 write: IOPS=0, BW=2507KiB/s (2567kB/s)(12.0MiB/4901msec); 0 zone resets clat (msec): min=522, max=2950, avg=1609.61, stdev=1233.34 lat (msec): min=523, max=2950, avg=1610.53, stdev=1233.16 clat percentiles (msec): | 1.00th=[ 523], 5.00th=[ 523], 10.00th=[ 523], 20.00th=[ 523], | 30.00th=[ 523], 40.00th=[ 1351], 50.00th=[ 1351], 60.00th=[ 1351], | 70.00th=[ 2937], 80.00th=[ 2937], 90.00th=[ 2937], 95.00th=[ 2937], | 99.00th=[ 2937], 99.50th=[ 2937], 99.90th=[ 2937], 99.95th=[ 2937], | 99.99th=[ 2937] bw ( KiB/s): min= 8159, max= 8192, per=100.00%, avg=8175.50, stdev=23.33, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 750=33.33%, 2000=33.33%, >=2000=33.33% cpu : usr=0.00%, sys=2.33%, ctx=46, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=3005KiB/s (3077kB/s), 751KiB/s-2549KiB/s (769kB/s-2611kB/s), io=16.0MiB (16.8MB), run=4820-5452msec WRITE: bw=6010KiB/s (6155kB/s), 1503KiB/s-2507KiB/s (1539kB/s-2567kB/s), io=32.0MiB (33.6MB), run=4901-5452msec