== sanity test 398c: run fio to test AIO ================= 02:37:59 (1761287879) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.487514 s, 86.0 MB/s osc.lustre-OST0000-osc-ffff8e3a92173000.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=191999: Fri Oct 24 02:38:38 2025 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29163msec); 0 zone resets slat (usec): min=27, max=7938, avg=158.24, stdev=508.34 clat (msec): min=25, max=315, avg=181.49, stdev=35.90 lat (msec): min=26, max=315, avg=181.65, stdev=35.90 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 134], 10.00th=[ 140], 20.00th=[ 150], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 241], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 317] bw ( KiB/s): min= 253, max= 512, per=24.92%, avg=349.93, stdev=58.62, samples=57 iops : min= 63, max= 128, avg=87.12, stdev=14.64, samples=57 lat (msec) : 50=0.08%, 100=0.70%, 250=96.21%, 500=3.01% cpu : usr=0.16%, sys=0.81%, ctx=2059, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=192000: Fri Oct 24 02:38:38 2025 write: IOPS=87, BW=352KiB/s (360kB/s)(10.0MiB/29105msec); 0 zone resets slat (usec): min=28, max=8877, avg=169.92, stdev=495.31 clat (msec): min=53, max=319, avg=181.57, stdev=35.49 lat (msec): min=53, max=319, avg=181.75, stdev=35.51 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 305], | 99.99th=[ 321] bw ( KiB/s): min= 215, max= 512, per=24.98%, avg=350.68, stdev=55.05, samples=57 iops : min= 53, max= 128, avg=87.30, stdev=13.75, samples=57 lat (msec) : 100=1.29%, 250=95.39%, 500=3.32% cpu : usr=0.16%, sys=0.97%, ctx=2317, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=192001: Fri Oct 24 02:38:38 2025 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29153msec); 0 zone resets slat (usec): min=28, max=8797, avg=159.68, stdev=507.45 clat (msec): min=24, max=327, avg=181.59, stdev=36.99 lat (msec): min=24, max=327, avg=181.76, stdev=37.00 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 129], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 209], 90.00th=[ 230], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 221, max= 488, per=24.94%, avg=350.12, stdev=52.38, samples=57 iops : min= 55, max= 122, avg=87.19, stdev=13.08, samples=57 lat (msec) : 50=0.27%, 100=0.86%, 250=94.84%, 500=4.02% cpu : usr=0.14%, sys=0.84%, ctx=2559, majf=0, minf=12 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=192002: Fri Oct 24 02:38:38 2025 write: IOPS=87, BW=351KiB/s (360kB/s)(10.0MiB/29166msec); 0 zone resets slat (usec): min=29, max=9420, avg=182.21, stdev=528.63 clat (msec): min=13, max=311, avg=181.28, stdev=36.18 lat (msec): min=13, max=311, avg=181.47, stdev=36.16 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 131], 10.00th=[ 140], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 229, max= 536, per=24.94%, avg=350.09, stdev=56.97, samples=57 iops : min= 57, max= 134, avg=87.16, stdev=14.24, samples=57 lat (msec) : 20=0.04%, 50=0.39%, 100=0.43%, 250=96.21%, 500=2.93% cpu : usr=0.19%, sys=0.93%, ctx=3031, majf=0, minf=12 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=1404KiB/s (1438kB/s), 351KiB/s-352KiB/s (360kB/s-360kB/s), io=40.0MiB (41.9MB), run=29105-29166msec 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=192017: Fri Oct 24 02:39:15 2025 read: IOPS=42, BW=170KiB/s (174kB/s)(5048KiB/29754msec) slat (usec): min=2901, max=57380, avg=12311.75, stdev=5581.22 clat (msec): min=80, max=329, avg=174.91, stdev=37.39 lat (msec): min=87, max=341, avg=187.23, stdev=38.82 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 313], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 98, max= 264, per=25.03%, avg=168.46, stdev=37.92, samples=59 iops : min= 24, max= 66, avg=41.63, stdev= 9.57, samples=59 write: IOPS=43, BW=174KiB/s (179kB/s)(5192KiB/29754msec); 0 zone resets slat (usec): min=29, max=8201, avg=194.13, stdev=556.89 clat (msec): min=36, max=354, avg=181.90, stdev=38.56 lat (msec): min=36, max=354, avg=182.10, stdev=38.54 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 209], 90.00th=[ 232], 95.00th=[ 251], | 99.00th=[ 296], 99.50th=[ 309], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 86, max= 240, per=24.77%, avg=173.64, stdev=36.38, samples=59 iops : min= 21, max= 60, avg=42.93, stdev= 9.10, samples=59 lat (msec) : 50=0.08%, 100=0.82%, 250=94.92%, 500=4.18% cpu : usr=0.27%, sys=1.58%, ctx=4084, 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=192018: Fri Oct 24 02:39:15 2025 read: IOPS=41, BW=168KiB/s (172kB/s)(4976KiB/29649msec) slat (usec): min=58, max=43261, avg=12310.26, stdev=5583.29 clat (msec): min=11, max=376, avg=175.42, stdev=38.10 lat (msec): min=11, max=396, avg=187.73, stdev=39.35 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 184], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 363], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 79, max= 248, per=24.81%, avg=166.95, stdev=36.68, samples=58 iops : min= 19, max= 62, avg=41.24, stdev= 9.24, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5264KiB/29649msec); 0 zone resets slat (usec): min=29, max=11533, avg=203.42, stdev=637.87 clat (msec): min=70, max=320, avg=182.32, stdev=37.94 lat (msec): min=70, max=320, avg=182.52, stdev=37.94 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 188], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 232], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 317], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 110, max= 271, per=25.38%, avg=177.88, stdev=39.86, samples=58 iops : min= 27, max= 67, avg=43.98, stdev=10.00, samples=58 lat (msec) : 20=0.08%, 50=0.04%, 100=1.05%, 250=95.00%, 500=3.83% cpu : usr=0.25%, sys=1.52%, ctx=4514, 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=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=192019: Fri Oct 24 02:39:15 2025 read: IOPS=41, BW=167KiB/s (172kB/s)(4984KiB/29757msec) slat (usec): min=2507, max=43773, avg=12346.59, stdev=5589.01 clat (msec): min=39, max=302, avg=175.83, stdev=38.28 lat (msec): min=52, max=327, avg=188.18, stdev=39.66 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 90, max= 253, per=24.74%, avg=166.51, stdev=37.05, samples=59 iops : min= 22, max= 63, avg=41.14, stdev= 9.36, samples=59 write: IOPS=44, BW=177KiB/s (181kB/s)(5256KiB/29757msec); 0 zone resets slat (usec): min=30, max=7264, avg=182.45, stdev=418.51 clat (msec): min=86, max=316, avg=181.18, stdev=36.00 lat (msec): min=86, max=316, avg=181.37, stdev=36.00 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 188], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 94, max= 264, per=25.04%, avg=175.54, stdev=40.59, samples=59 iops : min= 23, max= 66, avg=43.39, stdev=10.19, samples=59 lat (msec) : 50=0.04%, 100=0.43%, 250=95.78%, 500=3.75% cpu : usr=0.22%, sys=1.63%, ctx=4378, 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=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=192020: Fri Oct 24 02:39:15 2025 read: IOPS=42, BW=170KiB/s (174kB/s)(5060KiB/29783msec) slat (usec): min=2879, max=51609, avg=12434.30, stdev=5663.67 clat (msec): min=41, max=312, avg=175.62, stdev=38.48 lat (msec): min=56, max=322, avg=188.06, stdev=39.92 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 194], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 275], 99.50th=[ 292], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 98, max= 240, per=25.11%, avg=168.97, stdev=32.77, samples=59 iops : min= 24, max= 60, avg=41.76, stdev= 8.25, samples=59 write: IOPS=43, BW=174KiB/s (178kB/s)(5180KiB/29783msec); 0 zone resets slat (usec): min=32, max=6383, avg=173.39, stdev=410.25 clat (msec): min=78, max=327, avg=181.97, stdev=36.99 lat (msec): min=78, max=327, avg=182.14, stdev=36.99 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 124], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 190], | 70.00th=[ 199], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 292], 99.90th=[ 309], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 95, max= 261, per=24.70%, avg=173.14, stdev=38.02, samples=59 iops : min= 23, max= 65, avg=42.78, stdev= 9.57, samples=59 lat (msec) : 50=0.04%, 100=1.02%, 250=94.88%, 500=4.06% cpu : usr=0.20%, sys=1.54%, ctx=4960, 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=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=674KiB/s (690kB/s), 167KiB/s-170KiB/s (172kB/s-174kB/s), io=19.6MiB (20.5MB), run=29649-29783msec WRITE: bw=701KiB/s (718kB/s), 174KiB/s-178KiB/s (178kB/s-182kB/s), io=20.4MiB (21.4MB), run=29649-29783msec 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=192029: Fri Oct 24 02:39:24 2025 read: IOPS=2, BW=97.6MiB/s (102MB/s)(40.0MiB/410msec) slat (nsec): min=37790k, max=37790k, avg=37789941.00, stdev= 0.00 clat (nsec): min=334906k, max=334906k, avg=334906065.00, stdev= 0.00 lat (nsec): min=372702k, max=372702k, avg=372701600.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 334], 10.00th=[ 334], 20.00th=[ 334], | 30.00th=[ 334], 40.00th=[ 334], 50.00th=[ 334], 60.00th=[ 334], | 70.00th=[ 334], 80.00th=[ 334], 90.00th=[ 334], 95.00th=[ 334], | 99.00th=[ 334], 99.50th=[ 334], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] lat (msec) : 500=100.00% cpu : usr=0.49%, sys=4.65%, ctx=9, 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=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=97.6MiB/s (102MB/s), 97.6MiB/s-97.6MiB/s (102MB/s-102MB/s), io=40.0MiB (41.9MB), run=410-410msec 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