== sanity test 398c: run fio to test AIO ================= 17:26:20 (1775769980) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.477068 s, 87.9 MB/s osc.lustre-OST0000-osc-ffff89510306c000.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=181988: Thu Apr 9 17:26:57 2026 write: IOPS=97, BW=390KiB/s (400kB/s)(10.0MiB/26225msec); 0 zone resets slat (usec): min=35, max=16312, avg=231.27, stdev=728.03 clat (msec): min=25, max=324, avg=162.57, stdev=43.41 lat (msec): min=26, max=324, avg=162.81, stdev=43.43 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 104], 10.00th=[ 114], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 180], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 191, max= 638, per=24.94%, avg=389.27, stdev=92.60, samples=52 iops : min= 47, max= 159, avg=97.02, stdev=23.20, samples=52 lat (msec) : 50=0.12%, 100=4.41%, 250=91.09%, 500=4.38% cpu : usr=0.17%, sys=1.10%, ctx=2168, 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=181989: Thu Apr 9 17:26:57 2026 write: IOPS=98, BW=394KiB/s (403kB/s)(10.0MiB/26013msec); 0 zone resets slat (usec): min=37, max=12136, avg=267.60, stdev=700.50 clat (msec): min=12, max=307, avg=162.11, stdev=44.29 lat (msec): min=12, max=309, avg=162.38, stdev=44.27 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 101], 10.00th=[ 113], 20.00th=[ 126], | 30.00th=[ 134], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 182], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 279], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 215, max= 614, per=25.18%, avg=393.10, stdev=81.99, samples=51 iops : min= 53, max= 153, avg=97.94, stdev=20.52, samples=51 lat (msec) : 20=0.04%, 50=0.08%, 100=4.69%, 250=91.13%, 500=4.06% cpu : usr=0.18%, sys=1.28%, ctx=2959, 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=181990: Thu Apr 9 17:26:57 2026 write: IOPS=97, BW=390KiB/s (400kB/s)(10.0MiB/26234msec); 0 zone resets slat (usec): min=36, max=21114, avg=237.92, stdev=796.40 clat (msec): min=22, max=325, avg=162.88, stdev=44.16 lat (msec): min=22, max=326, avg=163.12, stdev=44.18 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 101], 10.00th=[ 115], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 167], | 70.00th=[ 182], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 284], 99.50th=[ 284], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 215, max= 638, per=24.93%, avg=389.17, stdev=89.90, samples=52 iops : min= 53, max= 159, avg=96.94, stdev=22.52, samples=52 lat (msec) : 50=0.12%, 100=4.57%, 250=91.13%, 500=4.18% cpu : usr=0.18%, sys=1.09%, ctx=2542, 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=181991: Thu Apr 9 17:26:57 2026 write: IOPS=97, BW=391KiB/s (400kB/s)(10.0MiB/26210msec); 0 zone resets slat (usec): min=35, max=12252, avg=210.79, stdev=596.80 clat (msec): min=21, max=308, avg=162.59, stdev=42.86 lat (msec): min=21, max=308, avg=162.80, stdev=42.90 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 104], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 184], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 232], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 234, max= 512, per=24.93%, avg=389.17, stdev=91.44, samples=52 iops : min= 58, max= 128, avg=96.96, stdev=22.91, samples=52 lat (msec) : 50=0.08%, 100=3.91%, 250=93.40%, 500=2.62% cpu : usr=0.15%, sys=1.10%, ctx=1837, 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 Run status group 0 (all jobs): WRITE: bw=1561KiB/s (1599kB/s), 390KiB/s-394KiB/s (400kB/s-403kB/s), io=40.0MiB (41.9MB), run=26013-26234msec 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=182005: Thu Apr 9 17:27:40 2026 read: IOPS=36, BW=146KiB/s (149kB/s)(5048KiB/34694msec) slat (usec): min=2685, max=62722, avg=15448.69, stdev=8899.20 clat (msec): min=88, max=442, avg=203.44, stdev=58.43 lat (msec): min=99, max=470, avg=218.90, stdev=61.44 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 120], 10.00th=[ 138], 20.00th=[ 157], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 197], 60.00th=[ 211], | 70.00th=[ 226], 80.00th=[ 245], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 393], 99.50th=[ 405], 99.90th=[ 439], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 63, max= 230, per=24.97%, avg=144.34, stdev=40.38, samples=68 iops : min= 15, max= 57, avg=35.57, stdev=10.16, samples=68 write: IOPS=37, BW=150KiB/s (153kB/s)(5192KiB/34694msec); 0 zone resets slat (usec): min=55, max=32901, avg=369.68, stdev=1445.80 clat (msec): min=97, max=500, avg=212.45, stdev=59.38 lat (msec): min=97, max=500, avg=212.83, stdev=59.45 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 127], 10.00th=[ 142], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 317], | 99.00th=[ 397], 99.50th=[ 439], 99.90th=[ 481], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 70, max= 262, per=24.77%, avg=149.12, stdev=41.06, samples=68 iops : min= 17, max= 65, avg=36.78, stdev=10.32, samples=68 lat (msec) : 100=0.55%, 250=78.83%, 500=20.59%, 750=0.04% cpu : usr=0.28%, sys=1.77%, ctx=4472, 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=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=182006: Thu Apr 9 17:27:40 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(4976KiB/34702msec) slat (usec): min=2838, max=73894, avg=15501.72, stdev=9012.70 clat (msec): min=14, max=449, avg=205.85, stdev=61.65 lat (msec): min=23, max=465, avg=221.36, stdev=64.42 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 184], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 435], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 36, max= 260, per=24.59%, avg=142.10, stdev=40.88, samples=68 iops : min= 9, max= 65, avg=35.04, stdev=10.26, samples=68 write: IOPS=37, BW=152KiB/s (155kB/s)(5264KiB/34702msec); 0 zone resets slat (usec): min=40, max=13792, avg=334.78, stdev=932.08 clat (msec): min=90, max=475, avg=210.19, stdev=57.47 lat (msec): min=90, max=475, avg=210.53, stdev=57.51 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 128], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 203], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 376], 99.50th=[ 435], 99.90th=[ 460], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 70, max= 254, per=25.16%, avg=151.44, stdev=42.63, samples=68 iops : min= 17, max= 63, avg=37.35, stdev=10.72, samples=68 lat (msec) : 20=0.04%, 100=0.90%, 250=78.83%, 500=20.23% cpu : usr=0.20%, sys=1.87%, ctx=4319, 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=182007: Thu Apr 9 17:27:40 2026 read: IOPS=36, BW=144KiB/s (148kB/s)(4984KiB/34597msec) slat (usec): min=2733, max=69357, avg=15464.03, stdev=9000.93 clat (msec): min=20, max=452, avg=204.59, stdev=60.74 lat (msec): min=31, max=488, avg=220.06, stdev=63.40 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 120], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 211], | 70.00th=[ 232], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 409], 99.50th=[ 430], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 64, max= 261, per=24.90%, avg=143.93, stdev=41.85, samples=68 iops : min= 16, max= 65, avg=35.50, stdev=10.50, samples=68 write: IOPS=37, BW=152KiB/s (156kB/s)(5256KiB/34597msec); 0 zone resets slat (usec): min=55, max=14901, avg=318.80, stdev=988.08 clat (msec): min=43, max=478, avg=210.12, stdev=59.22 lat (msec): min=43, max=478, avg=210.44, stdev=59.23 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 126], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 409], 99.50th=[ 435], 99.90th=[ 443], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 47, max= 254, per=25.11%, avg=151.18, stdev=42.77, samples=68 iops : min= 11, max= 63, avg=37.28, stdev=10.80, samples=68 lat (msec) : 50=0.08%, 100=0.47%, 250=79.84%, 500=19.61% cpu : usr=0.23%, sys=1.79%, ctx=4149, 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=182008: Thu Apr 9 17:27:40 2026 read: IOPS=36, BW=146KiB/s (150kB/s)(5060KiB/34603msec) slat (usec): min=62, max=64345, avg=15571.50, stdev=9146.80 clat (msec): min=8, max=478, avg=204.54, stdev=62.13 lat (msec): min=9, max=522, avg=220.12, stdev=65.21 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 118], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 197], 60.00th=[ 211], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 275], 95.00th=[ 317], | 99.00th=[ 414], 99.50th=[ 447], 99.90th=[ 464], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 63, max= 254, per=25.22%, avg=145.75, stdev=39.05, samples=68 iops : min= 15, max= 63, avg=35.91, stdev= 9.85, samples=68 write: IOPS=37, BW=150KiB/s (153kB/s)(5180KiB/34603msec); 0 zone resets slat (usec): min=41, max=20001, avg=311.08, stdev=1003.18 clat (msec): min=57, max=469, avg=211.71, stdev=61.37 lat (msec): min=57, max=469, avg=212.02, stdev=61.40 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 127], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 232], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 422], 99.50th=[ 447], 99.90th=[ 468], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 47, max= 278, per=24.72%, avg=148.79, stdev=39.97, samples=68 iops : min= 11, max= 69, avg=36.71, stdev=10.07, samples=68 lat (msec) : 10=0.04%, 20=0.08%, 50=0.08%, 100=0.62%, 250=78.16% lat (msec) : 500=21.02% cpu : usr=0.25%, sys=1.96%, ctx=4503, 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=578KiB/s (592kB/s), 143KiB/s-146KiB/s (147kB/s-150kB/s), io=19.6MiB (20.5MB), run=34597-34702msec WRITE: bw=602KiB/s (616kB/s), 150KiB/s-152KiB/s (153kB/s-156kB/s), io=20.4MiB (21.4MB), run=34597-34702msec 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=182017: Thu Apr 9 17:27:52 2026 read: IOPS=1, BW=79.4MiB/s (83.2MB/s)(40.0MiB/504msec) slat (nsec): min=46890k, max=46890k, avg=46890487.00, stdev= 0.00 clat (nsec): min=425373k, max=425373k, avg=425373362.00, stdev= 0.00 lat (nsec): min=472269k, max=472269k, avg=472269010.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 426], 5.00th=[ 426], 10.00th=[ 426], 20.00th=[ 426], | 30.00th=[ 426], 40.00th=[ 426], 50.00th=[ 426], 60.00th=[ 426], | 70.00th=[ 426], 80.00th=[ 426], 90.00th=[ 426], 95.00th=[ 426], | 99.00th=[ 426], 99.50th=[ 426], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.79%, ctx=12, 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=79.4MiB/s (83.2MB/s), 79.4MiB/s-79.4MiB/s (83.2MB/s-83.2MB/s), io=40.0MiB (41.9MB), run=504-504msec 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