== sanity test 398c: run fio to test AIO ================= 18:39:42 (1781217582) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.668599 s, 62.7 MB/s osc.lustre-OST0000-osc-ffff8eef45716800.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=179581: Thu Jun 11 18:40:20 2026 write: IOPS=101, BW=405KiB/s (415kB/s)(10.0MiB/25261msec); 0 zone resets slat (usec): min=36, max=36802, avg=241.53, stdev=993.44 clat (msec): min=16, max=359, avg=156.29, stdev=52.08 lat (msec): min=16, max=360, avg=156.53, stdev=52.07 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 94], 10.00th=[ 102], 20.00th=[ 116], | 30.00th=[ 127], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 155], | 70.00th=[ 167], 80.00th=[ 190], 90.00th=[ 230], 95.00th=[ 279], | 99.00th=[ 321], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 231, max= 638, per=24.95%, avg=404.02, stdev=100.37, samples=50 iops : min= 57, max= 159, avg=100.78, stdev=25.09, samples=50 lat (msec) : 20=0.04%, 50=0.08%, 100=9.02%, 250=84.02%, 500=6.84% cpu : usr=0.15%, sys=1.12%, ctx=2681, 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=179582: Thu Jun 11 18:40:20 2026 write: IOPS=101, BW=407KiB/s (416kB/s)(10.0MiB/25181msec); 0 zone resets slat (usec): min=37, max=12250, avg=252.22, stdev=699.05 clat (msec): min=22, max=408, avg=156.80, stdev=52.07 lat (msec): min=23, max=408, avg=157.06, stdev=52.07 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 96], 10.00th=[ 104], 20.00th=[ 117], | 30.00th=[ 127], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 155], | 70.00th=[ 169], 80.00th=[ 190], 90.00th=[ 234], 95.00th=[ 271], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 338], 99.95th=[ 351], | 99.99th=[ 409] bw ( KiB/s): min= 200, max= 638, per=25.05%, avg=405.52, stdev=97.58, samples=50 iops : min= 50, max= 159, avg=101.14, stdev=24.40, samples=50 lat (msec) : 50=0.23%, 100=7.50%, 250=85.51%, 500=6.76% cpu : usr=0.15%, sys=1.23%, ctx=2905, 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=179583: Thu Jun 11 18:40:20 2026 write: IOPS=101, BW=405KiB/s (415kB/s)(10.0MiB/25285msec); 0 zone resets slat (usec): min=38, max=16764, avg=224.57, stdev=716.28 clat (msec): min=22, max=344, avg=156.38, stdev=51.90 lat (msec): min=22, max=344, avg=156.60, stdev=51.93 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 95], 10.00th=[ 102], 20.00th=[ 114], | 30.00th=[ 123], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 155], | 70.00th=[ 171], 80.00th=[ 194], 90.00th=[ 230], 95.00th=[ 268], | 99.00th=[ 313], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 347] bw ( KiB/s): min= 183, max= 646, per=24.94%, avg=403.82, stdev=108.80, samples=50 iops : min= 45, max= 161, avg=100.70, stdev=27.19, samples=50 lat (msec) : 50=0.12%, 100=9.18%, 250=84.65%, 500=6.05% cpu : usr=0.21%, sys=1.14%, ctx=2602, 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=179584: Thu Jun 11 18:40:20 2026 write: IOPS=101, BW=405KiB/s (415kB/s)(10.0MiB/25295msec); 0 zone resets slat (usec): min=39, max=20324, avg=257.51, stdev=816.01 clat (msec): min=52, max=360, avg=156.31, stdev=51.96 lat (msec): min=52, max=360, avg=156.57, stdev=51.94 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 97], 10.00th=[ 103], 20.00th=[ 114], | 30.00th=[ 126], 40.00th=[ 136], 50.00th=[ 142], 60.00th=[ 153], | 70.00th=[ 167], 80.00th=[ 192], 90.00th=[ 232], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 351], 99.90th=[ 359], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 215, max= 614, per=24.87%, avg=402.70, stdev=98.06, samples=50 iops : min= 53, max= 153, avg=100.44, stdev=24.52, samples=50 lat (msec) : 100=7.50%, 250=85.66%, 500=6.84% cpu : usr=0.20%, sys=1.35%, ctx=2835, 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=1619KiB/s (1658kB/s), 405KiB/s-407KiB/s (415kB/s-416kB/s), io=40.0MiB (41.9MB), run=25181-25295msec 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=179598: Thu Jun 11 18:40:55 2026 read: IOPS=45, BW=181KiB/s (185kB/s)(5048KiB/27875msec) slat (msec): min=2, max=137, avg=12.31, stdev= 7.40 clat (msec): min=73, max=401, avg=164.30, stdev=45.80 lat (msec): min=77, max=406, avg=176.62, stdev=47.93 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 97], 10.00th=[ 110], 20.00th=[ 126], | 30.00th=[ 138], 40.00th=[ 150], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 220], 95.00th=[ 243], | 99.00th=[ 309], 99.50th=[ 338], 99.90th=[ 393], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 72, max= 272, per=25.10%, avg=180.45, stdev=44.85, samples=55 iops : min= 18, max= 68, avg=44.67, stdev=11.19, samples=55 write: IOPS=46, BW=186KiB/s (191kB/s)(5192KiB/27875msec); 0 zone resets slat (usec): min=41, max=9667, avg=237.34, stdev=553.60 clat (msec): min=60, max=350, avg=168.86, stdev=43.47 lat (msec): min=60, max=350, avg=169.10, stdev=43.49 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 130], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 95, max= 334, per=24.83%, avg=185.96, stdev=51.33, samples=55 iops : min= 23, max= 83, avg=46.02, stdev=12.88, samples=55 lat (msec) : 100=5.31%, 250=91.29%, 500=3.40% cpu : usr=0.22%, sys=2.20%, ctx=4491, 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=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=179599: Thu Jun 11 18:40:55 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(4976KiB/27875msec) slat (usec): min=2226, max=62796, avg=12419.25, stdev=7081.96 clat (msec): min=75, max=385, avg=165.74, stdev=47.67 lat (msec): min=80, max=395, avg=178.16, stdev=50.20 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 97], 10.00th=[ 110], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 251], | 99.00th=[ 317], 99.50th=[ 342], 99.90th=[ 372], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 95, max= 304, per=24.72%, avg=177.76, stdev=45.50, samples=55 iops : min= 23, max= 76, avg=43.98, stdev=11.36, samples=55 write: IOPS=47, BW=189KiB/s (193kB/s)(5264KiB/27875msec); 0 zone resets slat (usec): min=43, max=20518, avg=302.20, stdev=1071.81 clat (msec): min=73, max=350, avg=168.36, stdev=43.41 lat (msec): min=73, max=358, avg=168.66, stdev=43.46 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 129], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 292], 99.50th=[ 326], 99.90th=[ 347], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 71, max= 344, per=25.21%, avg=188.85, stdev=53.21, samples=55 iops : min= 17, max= 86, avg=46.76, stdev=13.35, samples=55 lat (msec) : 100=5.08%, 250=90.66%, 500=4.26% cpu : usr=0.34%, sys=2.08%, ctx=4578, 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=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=179600: Thu Jun 11 18:40:55 2026 read: IOPS=45, BW=180KiB/s (184kB/s)(4984KiB/27686msec) slat (usec): min=85, max=138340, avg=12060.32, stdev=8028.59 clat (msec): min=23, max=398, avg=162.71, stdev=47.31 lat (msec): min=23, max=427, avg=174.78, stdev=49.79 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 94], 10.00th=[ 106], 20.00th=[ 123], | 30.00th=[ 138], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 317], 99.50th=[ 334], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 79, max= 280, per=25.06%, avg=180.20, stdev=50.32, samples=54 iops : min= 19, max= 70, avg=44.61, stdev=12.60, samples=54 write: IOPS=47, BW=190KiB/s (194kB/s)(5256KiB/27686msec); 0 zone resets slat (usec): min=37, max=15284, avg=213.90, stdev=545.27 clat (msec): min=69, max=393, avg=170.67, stdev=47.81 lat (msec): min=69, max=393, avg=170.88, stdev=47.79 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 131], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 330], 99.50th=[ 359], 99.90th=[ 380], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 93, max= 326, per=25.27%, avg=189.24, stdev=47.81, samples=54 iops : min= 23, max= 81, avg=46.85, stdev=11.96, samples=54 lat (msec) : 50=0.16%, 100=5.86%, 250=89.77%, 500=4.22% cpu : usr=0.25%, sys=1.96%, ctx=4591, 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=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=179601: Thu Jun 11 18:40:55 2026 read: IOPS=45, BW=181KiB/s (186kB/s)(5060KiB/27880msec) slat (msec): min=2, max=149, avg=12.42, stdev= 7.95 clat (msec): min=62, max=379, avg=165.37, stdev=45.16 lat (msec): min=74, max=411, avg=177.80, stdev=47.40 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 100], 10.00th=[ 109], 20.00th=[ 126], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 296], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 55, max= 302, per=25.14%, avg=180.78, stdev=44.42, samples=55 iops : min= 13, max= 75, avg=44.73, stdev=11.17, samples=55 write: IOPS=46, BW=186KiB/s (190kB/s)(5180KiB/27880msec); 0 zone resets slat (usec): min=39, max=14189, avg=262.00, stdev=742.94 clat (msec): min=60, max=375, avg=167.91, stdev=47.25 lat (msec): min=62, max=383, avg=168.18, stdev=47.28 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 100], 10.00th=[ 110], 20.00th=[ 126], | 30.00th=[ 142], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 190], 80.00th=[ 205], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 309], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 85, max= 334, per=24.62%, avg=184.38, stdev=53.24, samples=55 iops : min= 21, max= 83, avg=45.65, stdev=13.29, samples=55 lat (msec) : 100=5.35%, 250=90.62%, 500=4.02% cpu : usr=0.30%, sys=2.06%, ctx=4510, 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=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=720KiB/s (737kB/s), 179KiB/s-181KiB/s (183kB/s-186kB/s), io=19.6MiB (20.5MB), run=27686-27880msec WRITE: bw=749KiB/s (767kB/s), 186KiB/s-190KiB/s (190kB/s-194kB/s), io=20.4MiB (21.4MB), run=27686-27880msec 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=179610: Thu Jun 11 18:41:08 2026 read: IOPS=2, BW=80.0MiB/s (84.9MB/s)(40.0MiB/494msec) slat (nsec): min=59317k, max=59317k, avg=59316912.00, stdev= 0.00 clat (nsec): min=390805k, max=390805k, avg=390804909.00, stdev= 0.00 lat (nsec): min=450127k, max=450127k, avg=450127480.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 393], 10.00th=[ 393], 20.00th=[ 393], | 30.00th=[ 393], 40.00th=[ 393], 50.00th=[ 393], 60.00th=[ 393], | 70.00th=[ 393], 80.00th=[ 393], 90.00th=[ 393], 95.00th=[ 393], | 99.00th=[ 393], 99.50th=[ 393], 99.90th=[ 393], 99.95th=[ 393], | 99.99th=[ 393] lat (msec) : 500=100.00% cpu : usr=0.61%, sys=3.25%, ctx=6, 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=80.0MiB/s (84.9MB/s), 80.0MiB/s-80.0MiB/s (84.9MB/s-84.9MB/s), io=40.0MiB (41.9MB), run=494-494msec 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