== sanity test 398c: run fio to test AIO ================= 08:46:19 (1786193179) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.173583 s, 242 MB/s osc.lustre-OST0000-osc-ffff931783a89800.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=146072: Sat Aug 8 08:47:12 2026 write: IOPS=52, BW=209KiB/s (214kB/s)(10.0MiB/49080msec); 0 zone resets slat (usec): min=34, max=3752, avg=229.67, stdev=222.25 clat (msec): min=115, max=602, avg=306.18, stdev=82.86 lat (msec): min=115, max=602, avg=306.41, stdev=82.87 clat percentiles (msec): | 1.00th=[ 142], 5.00th=[ 176], 10.00th=[ 197], 20.00th=[ 230], | 30.00th=[ 257], 40.00th=[ 284], 50.00th=[ 309], 60.00th=[ 330], | 70.00th=[ 355], 80.00th=[ 380], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 518], 99.50th=[ 542], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 103, max= 344, per=24.88%, avg=207.48, stdev=50.95, samples=97 iops : min= 25, max= 86, avg=51.73, stdev=12.78, samples=97 lat (msec) : 250=27.19%, 500=71.45%, 750=1.37% cpu : usr=0.11%, sys=0.90%, ctx=2911, majf=0, minf=8 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=146073: Sat Aug 8 08:47:12 2026 write: IOPS=52, BW=209KiB/s (214kB/s)(10.0MiB/48993msec); 0 zone resets slat (usec): min=36, max=2827, avg=214.68, stdev=171.05 clat (msec): min=38, max=602, avg=305.84, stdev=84.15 lat (msec): min=38, max=602, avg=306.06, stdev=84.17 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 171], 10.00th=[ 199], 20.00th=[ 232], | 30.00th=[ 255], 40.00th=[ 284], 50.00th=[ 305], 60.00th=[ 330], | 70.00th=[ 355], 80.00th=[ 376], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 514], 99.50th=[ 531], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 600] bw ( KiB/s): min= 111, max= 410, per=24.97%, avg=208.22, stdev=59.10, samples=97 iops : min= 27, max= 102, avg=51.91, stdev=14.81, samples=97 lat (msec) : 50=0.62%, 250=27.30%, 500=70.51%, 750=1.56% cpu : usr=0.14%, sys=0.87%, ctx=2710, 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=146074: Sat Aug 8 08:47:12 2026 write: IOPS=52, BW=209KiB/s (214kB/s)(10.0MiB/49081msec); 0 zone resets slat (usec): min=45, max=3925, avg=221.45, stdev=199.49 clat (msec): min=115, max=607, avg=306.22, stdev=82.62 lat (msec): min=115, max=607, avg=306.45, stdev=82.62 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 178], 10.00th=[ 199], 20.00th=[ 230], | 30.00th=[ 257], 40.00th=[ 284], 50.00th=[ 309], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 376], 90.00th=[ 409], 95.00th=[ 443], | 99.00th=[ 514], 99.50th=[ 542], 99.90th=[ 600], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 103, max= 352, per=24.90%, avg=207.66, stdev=54.31, samples=97 iops : min= 25, max= 88, avg=51.77, stdev=13.63, samples=97 lat (msec) : 250=27.58%, 500=70.90%, 750=1.52% cpu : usr=0.12%, sys=0.86%, ctx=2831, majf=0, minf=8 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=146075: Sat Aug 8 08:47:12 2026 write: IOPS=52, BW=209KiB/s (214kB/s)(10.0MiB/48971msec); 0 zone resets slat (usec): min=38, max=4148, avg=228.76, stdev=212.71 clat (msec): min=32, max=606, avg=305.56, stdev=83.15 lat (msec): min=32, max=606, avg=305.79, stdev=83.15 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 176], 10.00th=[ 201], 20.00th=[ 234], | 30.00th=[ 257], 40.00th=[ 279], 50.00th=[ 309], 60.00th=[ 330], | 70.00th=[ 351], 80.00th=[ 372], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 510], 99.50th=[ 542], 99.90th=[ 600], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 95, max= 404, per=24.99%, avg=208.39, stdev=54.54, samples=97 iops : min= 23, max= 101, avg=51.96, stdev=13.68, samples=97 lat (msec) : 50=0.08%, 100=0.27%, 250=26.80%, 500=71.41%, 750=1.45% cpu : usr=0.10%, sys=0.93%, ctx=2895, 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 Run status group 0 (all jobs): WRITE: bw=835KiB/s (855kB/s), 209KiB/s-209KiB/s (214kB/s-214kB/s), io=40.0MiB (41.9MB), run=48971-49081msec 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=146091: Sat Aug 8 08:47:44 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(5048KiB/29065msec) slat (usec): min=1273, max=16369, avg=3808.46, stdev=1887.08 clat (msec): min=15, max=227, avg=115.18, stdev=30.62 lat (msec): min=17, max=234, avg=118.99, stdev=31.14 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 74], 10.00th=[ 84], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 104], 50.00th=[ 111], 60.00th=[ 117], | 70.00th=[ 125], 80.00th=[ 138], 90.00th=[ 159], 95.00th=[ 176], | 99.00th=[ 207], 99.50th=[ 211], 99.90th=[ 220], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 72, max= 279, per=25.22%, avg=173.75, stdev=48.12, samples=57 iops : min= 18, max= 69, avg=43.28, stdev=12.04, samples=57 write: IOPS=44, BW=179KiB/s (183kB/s)(5192KiB/29065msec); 0 zone resets slat (usec): min=40, max=3619, avg=218.76, stdev=193.40 clat (msec): min=92, max=506, avg=241.48, stdev=72.10 lat (msec): min=92, max=506, avg=241.70, stdev=72.10 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 178], | 30.00th=[ 201], 40.00th=[ 218], 50.00th=[ 234], 60.00th=[ 251], | 70.00th=[ 275], 80.00th=[ 305], 90.00th=[ 342], 95.00th=[ 372], | 99.00th=[ 443], 99.50th=[ 456], 99.90th=[ 498], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 80, max= 296, per=24.86%, avg=178.51, stdev=46.39, samples=57 iops : min= 20, max= 74, avg=44.47, stdev=11.61, samples=57 lat (msec) : 20=0.08%, 50=0.16%, 100=16.45%, 250=63.09%, 500=20.20% lat (msec) : 750=0.04% cpu : usr=0.20%, sys=1.85%, ctx=4957, 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=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=146092: Sat Aug 8 08:47:44 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(4976KiB/29085msec) slat (usec): min=53, max=16326, avg=3866.10, stdev=1914.60 clat (msec): min=11, max=231, avg=114.85, stdev=31.93 lat (msec): min=11, max=240, avg=118.72, stdev=32.51 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 72], 10.00th=[ 83], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 105], 50.00th=[ 111], 60.00th=[ 117], | 70.00th=[ 126], 80.00th=[ 140], 90.00th=[ 159], 95.00th=[ 176], | 99.00th=[ 207], 99.50th=[ 211], 99.90th=[ 230], 99.95th=[ 232], | 99.99th=[ 232] bw ( KiB/s): min= 72, max= 280, per=24.78%, avg=170.70, stdev=49.62, samples=57 iops : min= 18, max= 70, avg=42.53, stdev=12.41, samples=57 write: IOPS=45, BW=181KiB/s (185kB/s)(5264KiB/29085msec); 0 zone resets slat (usec): min=57, max=2118, avg=220.38, stdev=164.18 clat (msec): min=42, max=526, avg=240.93, stdev=74.01 lat (msec): min=42, max=526, avg=241.15, stdev=74.01 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 197], 40.00th=[ 218], 50.00th=[ 234], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 309], 90.00th=[ 342], 95.00th=[ 368], | 99.00th=[ 422], 99.50th=[ 477], 99.90th=[ 502], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 96, max= 272, per=25.15%, avg=180.54, stdev=43.22, samples=57 iops : min= 24, max= 68, avg=44.98, stdev=10.82, samples=57 lat (msec) : 20=0.27%, 50=0.55%, 100=16.29%, 250=61.56%, 500=21.29% lat (msec) : 750=0.04% cpu : usr=0.19%, sys=1.82%, ctx=4916, majf=0, minf=16 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=146093: Sat Aug 8 08:47:44 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(4984KiB/29086msec) slat (usec): min=1363, max=19286, avg=3882.05, stdev=1873.27 clat (msec): min=3, max=239, avg=115.21, stdev=30.45 lat (msec): min=6, max=244, avg=119.10, stdev=30.96 clat percentiles (msec): | 1.00th=[ 60], 5.00th=[ 75], 10.00th=[ 83], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 105], 50.00th=[ 112], 60.00th=[ 118], | 70.00th=[ 127], 80.00th=[ 140], 90.00th=[ 157], 95.00th=[ 174], | 99.00th=[ 199], 99.50th=[ 220], 99.90th=[ 239], 99.95th=[ 241], | 99.99th=[ 241] bw ( KiB/s): min= 48, max= 319, per=24.90%, avg=171.54, stdev=56.45, samples=57 iops : min= 12, max= 79, avg=42.74, stdev=14.11, samples=57 write: IOPS=45, BW=181KiB/s (185kB/s)(5256KiB/29086msec); 0 zone resets slat (usec): min=47, max=2692, avg=217.58, stdev=176.04 clat (msec): min=58, max=510, avg=240.38, stdev=72.40 lat (msec): min=58, max=510, avg=240.60, stdev=72.41 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 194], 40.00th=[ 215], 50.00th=[ 234], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 342], 95.00th=[ 372], | 99.00th=[ 430], 99.50th=[ 447], 99.90th=[ 506], 99.95th=[ 510], | 99.99th=[ 510] bw ( KiB/s): min= 87, max= 280, per=24.95%, avg=179.11, stdev=43.56, samples=57 iops : min= 21, max= 70, avg=44.63, stdev=10.93, samples=57 lat (msec) : 4=0.04%, 20=0.16%, 50=0.16%, 100=16.17%, 250=62.38% lat (msec) : 500=21.02%, 750=0.08% cpu : usr=0.19%, sys=1.84%, ctx=5000, majf=0, minf=17 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=146094: Sat Aug 8 08:47:44 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(5060KiB/29051msec) slat (usec): min=1237, max=19715, avg=3868.84, stdev=1926.61 clat (msec): min=4, max=249, avg=115.72, stdev=31.33 lat (msec): min=7, max=252, avg=119.60, stdev=31.88 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 74], 10.00th=[ 83], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 104], 50.00th=[ 111], 60.00th=[ 118], | 70.00th=[ 128], 80.00th=[ 142], 90.00th=[ 159], 95.00th=[ 176], | 99.00th=[ 199], 99.50th=[ 224], 99.90th=[ 243], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 55, max= 295, per=25.46%, avg=175.39, stdev=53.24, samples=57 iops : min= 13, max= 73, avg=43.70, stdev=13.32, samples=57 write: IOPS=44, BW=178KiB/s (183kB/s)(5180KiB/29051msec); 0 zone resets slat (usec): min=48, max=5115, avg=227.01, stdev=235.49 clat (msec): min=40, max=474, avg=241.09, stdev=70.05 lat (msec): min=40, max=475, avg=241.32, stdev=70.05 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 138], 10.00th=[ 157], 20.00th=[ 178], | 30.00th=[ 197], 40.00th=[ 218], 50.00th=[ 236], 60.00th=[ 253], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 334], 95.00th=[ 368], | 99.00th=[ 443], 99.50th=[ 447], 99.90th=[ 472], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 80, max= 272, per=24.75%, avg=177.74, stdev=40.67, samples=57 iops : min= 20, max= 68, avg=44.28, stdev=10.19, samples=57 lat (msec) : 10=0.04%, 20=0.08%, 50=0.23%, 100=17.03%, 250=61.17% lat (msec) : 500=21.45% cpu : usr=0.20%, sys=1.82%, ctx=5024, majf=0, minf=16 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=690KiB/s (707kB/s), 171KiB/s-174KiB/s (175kB/s-178kB/s), io=19.6MiB (20.5MB), run=29051-29086msec WRITE: bw=718KiB/s (736kB/s), 178KiB/s-181KiB/s (183kB/s-185kB/s), io=20.4MiB (21.4MB), run=29051-29086msec 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=146103: Sat Aug 8 08:47:48 2026 read: IOPS=6, BW=278MiB/s (291MB/s)(40.0MiB/144msec) slat (nsec): min=13525k, max=13525k, avg=13524532.00, stdev= 0.00 clat (nsec): min=125165k, max=125165k, avg=125165239.00, stdev= 0.00 lat (nsec): min=138693k, max=138693k, avg=138693268.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 126], 5.00th=[ 126], 10.00th=[ 126], 20.00th=[ 126], | 30.00th=[ 126], 40.00th=[ 126], 50.00th=[ 126], 60.00th=[ 126], | 70.00th=[ 126], 80.00th=[ 126], 90.00th=[ 126], 95.00th=[ 126], | 99.00th=[ 126], 99.50th=[ 126], 99.90th=[ 126], 99.95th=[ 126], | 99.99th=[ 126] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.69%, ctx=42, 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=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=278MiB/s (291MB/s), 278MiB/s-278MiB/s (291MB/s-291MB/s), io=40.0MiB (41.9MB), run=144-144msec 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