== sanity test 398c: run fio to test AIO ================= 12:56:44 (1772474204) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.239352 s, 175 MB/s osc.lustre-OST0000-osc-ffff9f0b2a255800.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=147844: Mon Mar 2 12:58:21 2026 write: IOPS=27, BW=112KiB/s (115kB/s)(10.0MiB/91543msec); 0 zone resets slat (usec): min=36, max=10987, avg=245.90, stdev=501.09 clat (msec): min=90, max=1276, avg=571.05, stdev=159.42 lat (msec): min=90, max=1277, avg=571.30, stdev=159.44 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 317], 10.00th=[ 393], 20.00th=[ 456], | 30.00th=[ 493], 40.00th=[ 527], 50.00th=[ 567], 60.00th=[ 600], | 70.00th=[ 642], 80.00th=[ 684], 90.00th=[ 760], 95.00th=[ 844], | 99.00th=[ 1011], 99.50th=[ 1133], 99.90th=[ 1217], 99.95th=[ 1267], | 99.99th=[ 1284] bw ( KiB/s): min= 47, max= 326, per=25.02%, avg=111.57, stdev=34.08, samples=181 iops : min= 11, max= 81, avg=27.51, stdev= 8.52, samples=181 lat (msec) : 100=0.31%, 250=2.50%, 500=29.45%, 750=57.11%, 1000=9.61% lat (msec) : 2000=1.02% cpu : usr=0.06%, sys=0.45%, ctx=2924, 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=147845: Mon Mar 2 12:58:21 2026 write: IOPS=27, BW=112KiB/s (114kB/s)(10.0MiB/91671msec); 0 zone resets slat (usec): min=35, max=8780, avg=264.99, stdev=510.35 clat (msec): min=135, max=1264, avg=571.93, stdev=158.36 lat (msec): min=135, max=1265, avg=572.20, stdev=158.38 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 317], 10.00th=[ 388], 20.00th=[ 451], | 30.00th=[ 498], 40.00th=[ 531], 50.00th=[ 558], 60.00th=[ 600], | 70.00th=[ 642], 80.00th=[ 693], 90.00th=[ 760], 95.00th=[ 844], | 99.00th=[ 1003], 99.50th=[ 1116], 99.90th=[ 1267], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 250, per=24.90%, avg=111.03, stdev=35.35, samples=182 iops : min= 1, max= 62, avg=27.38, stdev= 8.89, samples=182 lat (msec) : 250=2.50%, 500=28.83%, 750=57.50%, 1000=10.08%, 2000=1.09% cpu : usr=0.05%, sys=0.46%, ctx=2852, 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=147846: Mon Mar 2 12:58:21 2026 write: IOPS=27, BW=112KiB/s (115kB/s)(10.0MiB/91483msec); 0 zone resets slat (usec): min=36, max=5882, avg=248.56, stdev=433.96 clat (msec): min=63, max=1274, avg=571.26, stdev=160.10 lat (msec): min=63, max=1275, avg=571.51, stdev=160.09 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 313], 10.00th=[ 384], 20.00th=[ 456], | 30.00th=[ 498], 40.00th=[ 531], 50.00th=[ 558], 60.00th=[ 600], | 70.00th=[ 642], 80.00th=[ 693], 90.00th=[ 760], 95.00th=[ 852], | 99.00th=[ 1003], 99.50th=[ 1116], 99.90th=[ 1234], 99.95th=[ 1234], | 99.99th=[ 1267] bw ( KiB/s): min= 32, max= 324, per=24.88%, avg=110.95, stdev=38.00, samples=182 iops : min= 8, max= 81, avg=27.36, stdev= 9.53, samples=182 lat (msec) : 100=0.35%, 250=2.30%, 500=28.67%, 750=58.12%, 1000=9.53% lat (msec) : 2000=1.02% cpu : usr=0.05%, sys=0.42%, ctx=2861, 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=147847: Mon Mar 2 12:58:21 2026 write: IOPS=27, BW=112KiB/s (114kB/s)(10.0MiB/91652msec); 0 zone resets slat (usec): min=37, max=14123, avg=263.62, stdev=548.93 clat (msec): min=90, max=1249, avg=571.83, stdev=161.73 lat (msec): min=90, max=1249, avg=572.10, stdev=161.73 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 313], 10.00th=[ 388], 20.00th=[ 451], | 30.00th=[ 489], 40.00th=[ 527], 50.00th=[ 558], 60.00th=[ 600], | 70.00th=[ 642], 80.00th=[ 693], 90.00th=[ 768], 95.00th=[ 869], | 99.00th=[ 1011], 99.50th=[ 1150], 99.90th=[ 1200], 99.95th=[ 1200], | 99.99th=[ 1250] bw ( KiB/s): min= 40, max= 317, per=24.88%, avg=110.95, stdev=36.41, samples=182 iops : min= 10, max= 79, avg=27.36, stdev= 9.13, samples=182 lat (msec) : 100=0.23%, 250=2.34%, 500=29.61%, 750=56.33%, 1000=10.43% lat (msec) : 2000=1.05% cpu : usr=0.06%, sys=0.47%, ctx=2854, 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=447KiB/s (458kB/s), 112KiB/s-112KiB/s (114kB/s-115kB/s), io=40.0MiB (41.9MB), run=91483-91671msec 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=147870: Mon Mar 2 12:59:26 2026 read: IOPS=20, BW=83.2KiB/s (85.2kB/s)(5048KiB/60699msec) slat (usec): min=1894, max=30734, avg=8437.27, stdev=4281.82 clat (msec): min=16, max=501, avg=239.26, stdev=56.22 lat (msec): min=22, max=507, avg=247.70, stdev=57.12 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 159], 10.00th=[ 176], 20.00th=[ 192], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 249], | 70.00th=[ 266], 80.00th=[ 284], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 388], 99.50th=[ 393], 99.90th=[ 477], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 23, max= 176, per=25.05%, avg=82.66, stdev=32.01, samples=120 iops : min= 5, max= 44, avg=20.22, stdev= 8.04, samples=120 write: IOPS=21, BW=85.5KiB/s (87.6kB/s)(5192KiB/60699msec); 0 zone resets slat (usec): min=54, max=12206, avg=297.83, stdev=624.34 clat (msec): min=184, max=860, avg=505.87, stdev=127.87 lat (msec): min=184, max=861, avg=506.17, stdev=127.86 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 296], 10.00th=[ 334], 20.00th=[ 393], | 30.00th=[ 435], 40.00th=[ 468], 50.00th=[ 502], 60.00th=[ 535], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 676], 95.00th=[ 726], | 99.00th=[ 810], 99.50th=[ 827], 99.90th=[ 852], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 31, max= 167, per=24.67%, avg=84.87, stdev=24.99, samples=120 iops : min= 7, max= 41, avg=20.78, stdev= 6.27, samples=120 lat (msec) : 20=0.08%, 50=0.08%, 100=0.16%, 250=30.16%, 500=43.98% lat (msec) : 750=24.14%, 1000=1.41% cpu : usr=0.14%, sys=1.01%, ctx=5159, 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=147871: Mon Mar 2 12:59:26 2026 read: IOPS=20, BW=82.4KiB/s (84.4kB/s)(4976KiB/60362msec) slat (usec): min=66, max=32329, avg=8364.66, stdev=4368.06 clat (msec): min=4, max=615, avg=237.76, stdev=63.05 lat (msec): min=6, max=632, avg=246.13, stdev=63.91 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 153], 10.00th=[ 169], 20.00th=[ 192], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 234], 60.00th=[ 247], | 70.00th=[ 264], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 397], 99.50th=[ 447], 99.90th=[ 609], 99.95th=[ 617], | 99.99th=[ 617] bw ( KiB/s): min= 15, max= 159, per=24.72%, avg=81.57, stdev=33.30, samples=120 iops : min= 3, max= 39, avg=19.95, stdev= 8.33, samples=120 write: IOPS=21, BW=87.2KiB/s (89.3kB/s)(5264KiB/60362msec); 0 zone resets slat (usec): min=38, max=15851, avg=265.68, stdev=536.96 clat (msec): min=49, max=875, avg=500.32, stdev=136.51 lat (msec): min=49, max=875, avg=500.59, stdev=136.53 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 288], 10.00th=[ 338], 20.00th=[ 388], | 30.00th=[ 430], 40.00th=[ 460], 50.00th=[ 498], 60.00th=[ 535], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 676], 95.00th=[ 718], | 99.00th=[ 818], 99.50th=[ 852], 99.90th=[ 869], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 23, max= 176, per=25.07%, avg=86.24, stdev=24.65, samples=120 iops : min= 5, max= 44, avg=21.13, stdev= 6.22, samples=120 lat (msec) : 10=0.08%, 20=0.31%, 50=0.23%, 100=0.59%, 250=30.12% lat (msec) : 500=42.97%, 750=24.22%, 1000=1.48% cpu : usr=0.11%, sys=1.01%, ctx=5138, 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=147872: Mon Mar 2 12:59:26 2026 read: IOPS=20, BW=82.1KiB/s (84.1kB/s)(4984KiB/60699msec) slat (usec): min=2207, max=34309, avg=8510.86, stdev=4320.48 clat (msec): min=20, max=500, avg=239.27, stdev=58.60 lat (msec): min=29, max=510, avg=247.79, stdev=59.13 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 153], 10.00th=[ 171], 20.00th=[ 192], | 30.00th=[ 207], 40.00th=[ 220], 50.00th=[ 232], 60.00th=[ 249], | 70.00th=[ 268], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 347], | 99.00th=[ 388], 99.50th=[ 397], 99.90th=[ 481], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 15, max= 174, per=24.79%, avg=81.80, stdev=30.23, samples=120 iops : min= 3, max= 43, avg=20.01, stdev= 7.58, samples=120 write: IOPS=21, BW=86.6KiB/s (88.7kB/s)(5256KiB/60699msec); 0 zone resets slat (usec): min=37, max=9996, avg=290.26, stdev=603.13 clat (msec): min=115, max=888, avg=502.71, stdev=131.28 lat (msec): min=115, max=888, avg=503.01, stdev=131.28 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 288], 10.00th=[ 330], 20.00th=[ 388], | 30.00th=[ 430], 40.00th=[ 464], 50.00th=[ 498], 60.00th=[ 535], | 70.00th=[ 575], 80.00th=[ 617], 90.00th=[ 676], 95.00th=[ 718], | 99.00th=[ 827], 99.50th=[ 852], 99.90th=[ 877], 99.95th=[ 885], | 99.99th=[ 885] bw ( KiB/s): min= 31, max= 159, per=24.82%, avg=85.38, stdev=24.52, samples=120 iops : min= 7, max= 39, avg=20.91, stdev= 6.17, samples=120 lat (msec) : 50=0.27%, 100=0.08%, 250=30.23%, 500=43.95%, 750=24.10% lat (msec) : 1000=1.37% cpu : usr=0.12%, sys=1.04%, ctx=5249, 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=147873: Mon Mar 2 12:59:26 2026 read: IOPS=20, BW=83.8KiB/s (85.8kB/s)(5060KiB/60362msec) slat (usec): min=1974, max=32406, avg=8472.53, stdev=4297.85 clat (msec): min=14, max=701, avg=240.80, stdev=64.88 lat (msec): min=18, max=713, avg=249.28, stdev=65.59 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 157], 10.00th=[ 171], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 220], 50.00th=[ 234], 60.00th=[ 249], | 70.00th=[ 268], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 342], | 99.00th=[ 405], 99.50th=[ 447], 99.90th=[ 693], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 7, max= 152, per=25.17%, avg=83.06, stdev=28.61, samples=120 iops : min= 1, max= 38, avg=20.32, stdev= 7.24, samples=120 write: IOPS=21, BW=85.8KiB/s (87.9kB/s)(5180KiB/60362msec); 0 zone resets slat (usec): min=39, max=8952, avg=288.29, stdev=603.65 clat (msec): min=40, max=991, avg=500.86, stdev=135.24 lat (msec): min=41, max=991, avg=501.15, stdev=135.23 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 279], 10.00th=[ 334], 20.00th=[ 380], | 30.00th=[ 426], 40.00th=[ 464], 50.00th=[ 502], 60.00th=[ 535], | 70.00th=[ 567], 80.00th=[ 609], 90.00th=[ 667], 95.00th=[ 726], | 99.00th=[ 844], 99.50th=[ 869], 99.90th=[ 944], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 24, max= 151, per=24.69%, avg=84.95, stdev=26.52, samples=120 iops : min= 6, max= 37, avg=20.81, stdev= 6.63, samples=120 lat (msec) : 20=0.08%, 50=0.39%, 100=0.16%, 250=30.39%, 500=43.28% lat (msec) : 750=23.79%, 1000=1.91% cpu : usr=0.15%, sys=1.00%, ctx=5072, 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=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=331KiB/s (339kB/s), 82.1KiB/s-83.8KiB/s (84.1kB/s-85.8kB/s), io=19.6MiB (20.5MB), run=60362-60699msec WRITE: bw=344KiB/s (352kB/s), 85.5KiB/s-87.2KiB/s (87.6kB/s-89.3kB/s), io=20.4MiB (21.4MB), run=60362-60699msec 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=147889: Mon Mar 2 12:59:33 2026 read: IOPS=2, BW=119MiB/s (125MB/s)(40.0MiB/335msec) slat (nsec): min=30685k, max=30685k, avg=30685471.00, stdev= 0.00 clat (nsec): min=290137k, max=290137k, avg=290137479.00, stdev= 0.00 lat (nsec): min=320827k, max=320827k, avg=320826774.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 292], 10.00th=[ 292], 20.00th=[ 292], | 30.00th=[ 292], 40.00th=[ 292], 50.00th=[ 292], 60.00th=[ 292], | 70.00th=[ 292], 80.00th=[ 292], 90.00th=[ 292], 95.00th=[ 292], | 99.00th=[ 292], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.10%, ctx=31, 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=119MiB/s (125MB/s), 119MiB/s-119MiB/s (125MB/s-125MB/s), io=40.0MiB (41.9MB), run=335-335msec 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