== sanity test 398c: run fio to test AIO ================= 19:22:43 (1788218563) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.582375 s, 72.0 MB/s osc.lustre-OST0000-osc-ffff94678f74b800.rpc_stats=clear writing 40M to OST0 by fio with 4 jobs... rand-write: (g=0): rw=randwrite, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-write: (groupid=0, jobs=1): err= 0: pid=174638: Mon Aug 31 19:25:58 2026 write: IOPS=13, BW=55.8KiB/s (57.1kB/s)(10.0MiB/183668msec); 0 zone resets slat (usec): min=22, max=14668, avg=235.30, stdev=896.55 clat (msec): min=178, max=2958, avg=1146.74, stdev=324.79 lat (msec): min=180, max=2958, avg=1146.98, stdev=324.80 clat percentiles (msec): | 1.00th=[ 468], 5.00th=[ 625], 10.00th=[ 743], 20.00th=[ 894], | 30.00th=[ 986], 40.00th=[ 1062], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1385], 90.00th=[ 1536], 95.00th=[ 1653], | 99.00th=[ 2022], 99.50th=[ 2467], 99.90th=[ 2937], 99.95th=[ 2970], | 99.99th=[ 2970] bw ( KiB/s): min= 7, max= 141, per=25.43%, avg=56.46, stdev=29.67, samples=356 iops : min= 1, max= 35, avg=13.64, stdev= 7.41, samples=356 lat (msec) : 250=0.12%, 500=1.29%, 750=8.95%, 1000=21.33%, 2000=67.27% lat (msec) : >=2000=1.05% cpu : usr=0.05%, sys=0.22%, ctx=1742, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=174639: Mon Aug 31 19:25:58 2026 write: IOPS=13, BW=55.7KiB/s (57.1kB/s)(10.0MiB/183738msec); 0 zone resets slat (usec): min=22, max=16397, avg=243.71, stdev=890.15 clat (msec): min=453, max=3084, avg=1147.05, stdev=321.97 lat (msec): min=454, max=3084, avg=1147.29, stdev=321.98 clat percentiles (msec): | 1.00th=[ 506], 5.00th=[ 642], 10.00th=[ 760], 20.00th=[ 885], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1385], 90.00th=[ 1536], 95.00th=[ 1653], | 99.00th=[ 2022], 99.50th=[ 2366], 99.90th=[ 3037], 99.95th=[ 3071], | 99.99th=[ 3071] bw ( KiB/s): min= 7, max= 141, per=25.23%, avg=56.02, stdev=25.96, samples=359 iops : min= 1, max= 35, avg=13.52, stdev= 6.51, samples=359 lat (msec) : 500=0.59%, 750=9.02%, 1000=22.58%, 2000=66.64%, >=2000=1.17% cpu : usr=0.05%, sys=0.23%, ctx=1694, majf=0, minf=10 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=174640: Mon Aug 31 19:25:58 2026 write: IOPS=13, BW=55.8KiB/s (57.2kB/s)(10.0MiB/183454msec); 0 zone resets slat (usec): min=21, max=22645, avg=252.30, stdev=1046.31 clat (msec): min=214, max=3031, avg=1145.86, stdev=327.54 lat (msec): min=214, max=3031, avg=1146.12, stdev=327.56 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 609], 10.00th=[ 743], 20.00th=[ 894], | 30.00th=[ 986], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1385], 90.00th=[ 1536], 95.00th=[ 1670], | 99.00th=[ 1989], 99.50th=[ 2467], 99.90th=[ 2937], 99.95th=[ 3037], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 128, per=25.65%, avg=56.95, stdev=31.41, samples=353 iops : min= 1, max= 32, avg=13.76, stdev= 7.87, samples=353 lat (msec) : 250=0.62%, 500=0.98%, 750=8.55%, 1000=21.95%, 2000=66.91% lat (msec) : >=2000=0.98% cpu : usr=0.04%, sys=0.22%, ctx=1549, majf=0, minf=9 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-write: (groupid=0, jobs=1): err= 0: pid=174641: Mon Aug 31 19:25:58 2026 write: IOPS=13, BW=55.7KiB/s (57.1kB/s)(10.0MiB/183708msec); 0 zone resets slat (usec): min=22, max=16501, avg=231.49, stdev=776.33 clat (msec): min=111, max=3025, avg=1146.92, stdev=323.60 lat (msec): min=112, max=3025, avg=1147.16, stdev=323.61 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 625], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1401], 90.00th=[ 1536], 95.00th=[ 1636], | 99.00th=[ 1972], 99.50th=[ 2500], 99.90th=[ 2903], 99.95th=[ 2903], | 99.99th=[ 3037] bw ( KiB/s): min= 7, max= 133, per=25.38%, avg=56.34, stdev=26.55, samples=357 iops : min= 1, max= 33, avg=13.60, stdev= 6.64, samples=357 lat (msec) : 250=0.04%, 500=0.90%, 750=8.83%, 1000=22.97%, 2000=66.33% lat (msec) : >=2000=0.94% cpu : usr=0.05%, sys=0.20%, ctx=1642, majf=0, minf=11 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,2560,0,0 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): WRITE: bw=223KiB/s (228kB/s), 55.7KiB/s-55.8KiB/s (57.1kB/s-57.2kB/s), io=40.0MiB (41.9MB), run=183454-183738msec mix rw 40M to OST0 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=libaio, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=174677: Mon Aug 31 19:28:06 2026 read: IOPS=10, BW=42.3KiB/s (43.3kB/s)(5048KiB/119368msec) slat (usec): min=40, max=82504, avg=16230.74, stdev=10192.38 clat (msec): min=11, max=1312, avg=468.70, stdev=149.66 lat (msec): min=24, max=1334, avg=484.95, stdev=151.97 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 351], | 30.00th=[ 388], 40.00th=[ 418], 50.00th=[ 451], 60.00th=[ 485], | 70.00th=[ 523], 80.00th=[ 567], 90.00th=[ 659], 95.00th=[ 735], | 99.00th=[ 978], 99.50th=[ 1070], 99.90th=[ 1167], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 112, per=25.35%, avg=42.33, stdev=20.14, samples=233 iops : min= 1, max= 28, avg=10.06, stdev= 5.06, samples=233 write: IOPS=10, BW=43.5KiB/s (44.5kB/s)(5192KiB/119368msec); 0 zone resets slat (usec): min=28, max=19632, avg=306.46, stdev=1060.29 clat (msec): min=199, max=2255, avg=998.34, stdev=299.13 lat (msec): min=199, max=2255, avg=998.65, stdev=299.12 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 609], 10.00th=[ 684], 20.00th=[ 768], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1401], 95.00th=[ 1552], | 99.00th=[ 1921], 99.50th=[ 2022], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 111, per=24.67%, avg=42.92, stdev=20.22, samples=236 iops : min= 1, max= 27, avg=10.20, stdev= 5.10, samples=236 lat (msec) : 20=0.04%, 50=0.04%, 100=0.12%, 250=1.52%, 500=30.82% lat (msec) : 750=23.52%, 1000=21.52%, 2000=22.07%, >=2000=0.35% cpu : usr=0.10%, sys=0.60%, ctx=4041, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1262,1298,0,0 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=174678: Mon Aug 31 19:28:06 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(4976KiB/119672msec) slat (usec): min=2781, max=76462, avg=16074.15, stdev=8980.26 clat (msec): min=13, max=1062, avg=470.08, stdev=151.53 lat (msec): min=29, max=1131, avg=486.17, stdev=153.56 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 266], 10.00th=[ 309], 20.00th=[ 351], | 30.00th=[ 393], 40.00th=[ 422], 50.00th=[ 451], 60.00th=[ 489], | 70.00th=[ 527], 80.00th=[ 575], 90.00th=[ 651], 95.00th=[ 751], | 99.00th=[ 969], 99.50th=[ 986], 99.90th=[ 1053], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 112, per=24.60%, avg=41.08, stdev=21.43, samples=236 iops : min= 1, max= 28, avg= 9.74, stdev= 5.41, samples=236 write: IOPS=10, BW=43.0KiB/s (45.0kB/s)(5264KiB/119672msec); 0 zone resets slat (usec): min=30, max=24273, avg=302.31, stdev=1036.79 clat (msec): min=183, max=2203, avg=992.67, stdev=297.28 lat (msec): min=184, max=2204, avg=992.97, stdev=297.26 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 592], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1083], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1569], | 99.00th=[ 1921], 99.50th=[ 2106], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 111, per=25.06%, avg=43.61, stdev=19.88, samples=235 iops : min= 1, max= 27, avg=10.37, stdev= 4.99, samples=235 lat (msec) : 20=0.04%, 50=0.04%, 100=0.27%, 250=1.33%, 500=30.12% lat (msec) : 750=24.26%, 1000=21.37%, 2000=22.19%, >=2000=0.39% cpu : usr=0.12%, sys=0.60%, ctx=4483, majf=0, minf=15 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1244,1316,0,0 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=174679: Mon Aug 31 19:28:06 2026 read: IOPS=10, BW=41.6KiB/s (42.6kB/s)(4984KiB/119777msec) slat (usec): min=2669, max=80009, avg=16160.34, stdev=9005.46 clat (msec): min=13, max=1064, avg=475.52, stdev=142.89 lat (msec): min=24, max=1136, avg=491.69, stdev=144.02 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 268], 10.00th=[ 313], 20.00th=[ 363], | 30.00th=[ 401], 40.00th=[ 435], 50.00th=[ 464], 60.00th=[ 498], | 70.00th=[ 531], 80.00th=[ 584], 90.00th=[ 642], 95.00th=[ 726], | 99.00th=[ 936], 99.50th=[ 969], 99.90th=[ 1062], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 7, max= 103, per=24.79%, avg=41.41, stdev=20.05, samples=236 iops : min= 1, max= 25, avg= 9.82, stdev= 5.04, samples=236 write: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5256KiB/119777msec); 0 zone resets slat (usec): min=26, max=19452, avg=320.76, stdev=1190.36 clat (msec): min=164, max=2186, avg=989.68, stdev=298.42 lat (msec): min=164, max=2187, avg=990.00, stdev=298.38 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 877], 50.00th=[ 944], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1519], | 99.00th=[ 1888], 99.50th=[ 2022], 99.90th=[ 2140], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 95, per=24.80%, avg=43.15, stdev=18.29, samples=237 iops : min= 1, max= 23, avg=10.26, stdev= 4.59, samples=237 lat (msec) : 20=0.08%, 50=0.04%, 100=0.23%, 250=1.33%, 500=29.41% lat (msec) : 750=24.92%, 1000=21.68%, 2000=21.99%, >=2000=0.31% cpu : usr=0.11%, sys=0.62%, ctx=4271, majf=0, minf=13 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1246,1314,0,0 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=174680: Mon Aug 31 19:28:06 2026 read: IOPS=10, BW=42.3KiB/s (43.4kB/s)(5060KiB/119484msec) slat (usec): min=2819, max=73335, avg=16784.21, stdev=9860.89 clat (msec): min=25, max=1073, avg=472.72, stdev=142.14 lat (msec): min=39, max=1137, avg=489.51, stdev=144.23 clat percentiles (msec): | 1.00th=[ 194], 5.00th=[ 271], 10.00th=[ 317], 20.00th=[ 359], | 30.00th=[ 397], 40.00th=[ 426], 50.00th=[ 456], 60.00th=[ 489], | 70.00th=[ 527], 80.00th=[ 584], 90.00th=[ 659], 95.00th=[ 726], | 99.00th=[ 919], 99.50th=[ 978], 99.90th=[ 1028], 99.95th=[ 1083], | 99.99th=[ 1083] bw ( KiB/s): min= 7, max= 103, per=25.73%, avg=42.96, stdev=18.46, samples=231 iops : min= 1, max= 25, avg=10.21, stdev= 4.65, samples=231 write: IOPS=10, BW=43.4KiB/s (44.4kB/s)(5180KiB/119484msec); 0 zone resets slat (usec): min=29, max=13498, avg=262.99, stdev=737.08 clat (msec): min=314, max=2256, avg=994.57, stdev=289.43 lat (msec): min=314, max=2256, avg=994.83, stdev=289.45 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 600], 10.00th=[ 676], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1368], 95.00th=[ 1536], | 99.00th=[ 1905], 99.50th=[ 2022], 99.90th=[ 2198], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 7, max= 96, per=24.67%, avg=42.92, stdev=19.23, samples=235 iops : min= 1, max= 24, avg=10.20, stdev= 4.84, samples=235 lat (msec) : 50=0.04%, 100=0.16%, 250=1.17%, 500=30.62%, 750=24.77% lat (msec) : 1000=20.94%, 2000=22.03%, >=2000=0.27% cpu : usr=0.09%, sys=0.59%, ctx=3681, majf=0, minf=14 IO depths : 1=0.1%, 2=0.1%, 4=0.2%, 8=0.3%, 16=99.4%, 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=0.1%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1265,1295,0,0 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=168KiB/s (172kB/s), 41.6KiB/s-42.3KiB/s (42.6kB/s-43.4kB/s), io=19.6MiB (20.5MB), run=119368-119777msec WRITE: bw=174KiB/s (179kB/s), 43.4KiB/s-43.0KiB/s (44.4kB/s-45.0kB/s), io=20.4MiB (21.4MB), run=119368-119777msec AIO with large block size 40M rand-rw: (g=0): rw=randrw, bs=(R) 40.0MiB-40.0MiB, (W) 40.0MiB-40.0MiB, (T) 40.0MiB-40.0MiB, ioengine=libaio, iodepth=16 fio-3.19 Starting 1 process rand-rw: (groupid=0, jobs=1): err= 0: pid=174703: Mon Aug 31 19:28:15 2026 read: IOPS=1, BW=65.9MiB/s (69.1MB/s)(40.0MiB/607msec) slat (nsec): min=63623k, max=63623k, avg=63622793.00, stdev= 0.00 clat (nsec): min=512369k, max=512369k, avg=512368586.00, stdev= 0.00 lat (nsec): min=575996k, max=575996k, avg=575996306.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.82%, ctx=30, 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=1,0,0,0 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=65.9MiB/s (69.1MB/s), 65.9MiB/s-65.9MiB/s (69.1MB/s-69.1MB/s), io=40.0MiB (41.9MB), run=607-607msec debug=trace inode super iotrace malloc cache info ioctl neterror net warning buffs other dentry nettrace page dlmtrace error emerg ha rpctrace vfstrace reada mmap config console quota sec lfsck hsm snapshot layout