== sanity test 398c: run fio to test AIO ================= 10:38:32 (1790951912) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.400995 s, 105 MB/s osc.lustre-OST0000-osc-ffff8aecc5197000.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=181549: Fri Oct 2 10:39:05 2026 write: IOPS=104, BW=420KiB/s (430kB/s)(10.0MiB/24409msec); 0 zone resets slat (usec): min=24, max=16802, avg=223.70, stdev=818.95 clat (msec): min=19, max=249, avg=151.52, stdev=34.31 lat (msec): min=19, max=249, avg=151.75, stdev=34.35 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 103], 10.00th=[ 109], 20.00th=[ 121], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 236], 99.50th=[ 243], 99.90th=[ 249], 99.95th=[ 249], | 99.99th=[ 249] bw ( KiB/s): min= 235, max= 632, per=24.99%, avg=418.50, stdev=80.48, samples=48 iops : min= 58, max= 158, avg=104.29, stdev=20.16, samples=48 lat (msec) : 20=0.04%, 50=0.04%, 100=3.83%, 250=96.09% cpu : usr=0.19%, sys=1.01%, ctx=2968, 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=181550: Fri Oct 2 10:39:05 2026 write: IOPS=104, BW=419KiB/s (429kB/s)(10.0MiB/24440msec); 0 zone resets slat (usec): min=24, max=13733, avg=170.70, stdev=559.94 clat (msec): min=24, max=253, avg=151.53, stdev=35.22 lat (msec): min=24, max=253, avg=151.70, stdev=35.24 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 101], 10.00th=[ 108], 20.00th=[ 118], | 30.00th=[ 131], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 241], 99.50th=[ 247], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 236, max= 592, per=24.92%, avg=417.35, stdev=84.37, samples=48 iops : min= 59, max= 148, avg=104.02, stdev=21.05, samples=48 lat (msec) : 50=0.12%, 100=5.00%, 250=94.69%, 500=0.20% cpu : usr=0.22%, sys=0.95%, ctx=2576, 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=181551: Fri Oct 2 10:39:05 2026 write: IOPS=105, BW=421KiB/s (432kB/s)(10.0MiB/24298msec); 0 zone resets slat (usec): min=28, max=15042, avg=207.90, stdev=702.32 clat (msec): min=25, max=252, avg=151.48, stdev=34.56 lat (msec): min=26, max=252, avg=151.69, stdev=34.58 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 103], 10.00th=[ 109], 20.00th=[ 121], | 30.00th=[ 132], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 213], | 99.00th=[ 234], 99.50th=[ 251], 99.90th=[ 253], 99.95th=[ 253], | 99.99th=[ 253] bw ( KiB/s): min= 311, max= 576, per=25.15%, avg=421.33, stdev=72.79, samples=48 iops : min= 77, max= 144, avg=105.00, stdev=18.16, samples=48 lat (msec) : 50=0.20%, 100=3.79%, 250=95.47%, 500=0.55% cpu : usr=0.19%, sys=1.02%, ctx=2853, 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=181552: Fri Oct 2 10:39:05 2026 write: IOPS=104, BW=419KiB/s (429kB/s)(10.0MiB/24441msec); 0 zone resets slat (usec): min=22, max=13925, avg=181.20, stdev=613.49 clat (msec): min=57, max=254, avg=151.62, stdev=35.06 lat (msec): min=57, max=254, avg=151.80, stdev=35.07 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 102], 10.00th=[ 109], 20.00th=[ 122], | 30.00th=[ 133], 40.00th=[ 142], 50.00th=[ 150], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 236], 99.50th=[ 247], 99.90th=[ 251], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 234, max= 560, per=24.88%, avg=416.67, stdev=74.28, samples=48 iops : min= 58, max= 140, avg=103.85, stdev=18.61, samples=48 lat (msec) : 100=4.88%, 250=94.88%, 500=0.23% cpu : usr=0.17%, sys=0.79%, ctx=2383, 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=1676KiB/s (1716kB/s), 419KiB/s-421KiB/s (429kB/s-432kB/s), io=40.0MiB (41.9MB), run=24298-24441msec 24% of I/O are 1-page (PAGE_SIZE=4096), max 50% 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=181566: Fri Oct 2 10:39:42 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5048KiB/31071msec) slat (usec): min=1791, max=71163, avg=13220.88, stdev=8498.04 clat (msec): min=7, max=385, avg=183.13, stdev=57.91 lat (msec): min=11, max=428, avg=196.36, stdev=60.72 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 100], 10.00th=[ 115], 20.00th=[ 131], | 30.00th=[ 148], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 211], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 338], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 71, max= 270, per=25.03%, avg=161.48, stdev=42.42, samples=61 iops : min= 17, max= 67, avg=39.87, stdev=10.62, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31071msec); 0 zone resets slat (usec): min=29, max=13948, avg=207.25, stdev=704.28 clat (msec): min=40, max=413, avg=189.89, stdev=58.24 lat (msec): min=42, max=413, avg=190.10, stdev=58.27 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 155], 40.00th=[ 171], 50.00th=[ 186], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 368], 99.90th=[ 376], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 88, max= 319, per=24.85%, avg=167.00, stdev=46.10, samples=61 iops : min= 22, max= 79, avg=41.23, stdev=11.54, samples=61 lat (msec) : 10=0.04%, 50=0.16%, 100=4.26%, 250=81.80%, 500=13.75% cpu : usr=0.24%, sys=1.57%, ctx=4550, 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=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=181567: Fri Oct 2 10:39:42 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4976KiB/31046msec) slat (usec): min=1787, max=65870, avg=13454.06, stdev=8670.57 clat (msec): min=49, max=414, avg=183.63, stdev=55.17 lat (msec): min=56, max=448, avg=197.09, stdev=57.93 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 105], 10.00th=[ 116], 20.00th=[ 136], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 71, max= 264, per=24.70%, avg=159.33, stdev=43.45, samples=61 iops : min= 17, max= 66, avg=39.30, stdev=10.92, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5264KiB/31046msec); 0 zone resets slat (usec): min=33, max=27457, avg=259.80, stdev=1128.08 clat (msec): min=64, max=435, avg=189.07, stdev=57.88 lat (msec): min=64, max=435, avg=189.33, stdev=57.93 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 153], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 79, max= 279, per=25.22%, avg=169.49, stdev=47.54, samples=61 iops : min= 19, max= 69, avg=41.87, stdev=11.89, samples=61 lat (msec) : 50=0.04%, 100=3.83%, 250=83.67%, 500=12.46% cpu : usr=0.28%, sys=1.72%, ctx=4517, 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=181568: Fri Oct 2 10:39:42 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4984KiB/31075msec) slat (usec): min=2293, max=86772, avg=13438.33, stdev=8769.53 clat (msec): min=59, max=402, avg=183.75, stdev=56.42 lat (msec): min=64, max=439, avg=197.19, stdev=59.06 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 102], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 380], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 79, max= 239, per=24.82%, avg=160.10, stdev=38.12, samples=61 iops : min= 19, max= 59, avg=39.51, stdev= 9.53, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31075msec); 0 zone resets slat (usec): min=25, max=15322, avg=221.63, stdev=862.73 clat (msec): min=70, max=414, avg=189.20, stdev=58.79 lat (msec): min=70, max=414, avg=189.42, stdev=58.81 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 102], 10.00th=[ 118], 20.00th=[ 138], | 30.00th=[ 155], 40.00th=[ 169], 50.00th=[ 186], 60.00th=[ 203], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 296], | 99.00th=[ 347], 99.50th=[ 376], 99.90th=[ 401], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 296, per=24.99%, avg=167.90, stdev=48.71, samples=61 iops : min= 15, max= 74, avg=41.48, stdev=12.21, samples=61 lat (msec) : 100=4.84%, 250=80.90%, 500=14.26% cpu : usr=0.25%, sys=1.69%, ctx=4283, 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=181569: Fri Oct 2 10:39:42 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(5060KiB/30916msec) slat (usec): min=56, max=66840, avg=13076.29, stdev=8708.34 clat (msec): min=5, max=406, avg=182.79, stdev=58.88 lat (msec): min=5, max=446, avg=195.87, stdev=61.72 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 101], 10.00th=[ 115], 20.00th=[ 133], | 30.00th=[ 146], 40.00th=[ 161], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 213], 80.00th=[ 232], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 79, max= 246, per=25.33%, avg=163.38, stdev=42.70, samples=61 iops : min= 19, max= 61, avg=40.33, stdev=10.72, samples=61 write: IOPS=41, BW=168KiB/s (172kB/s)(5180KiB/30916msec); 0 zone resets slat (usec): min=25, max=13915, avg=186.85, stdev=633.54 clat (msec): min=62, max=414, avg=189.91, stdev=58.53 lat (msec): min=62, max=414, avg=190.10, stdev=58.52 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 169], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 264], 95.00th=[ 296], | 99.00th=[ 376], 99.50th=[ 401], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 63, max= 303, per=24.91%, avg=167.43, stdev=50.55, samples=61 iops : min= 15, max= 75, avg=41.33, stdev=12.61, samples=61 lat (msec) : 10=0.04%, 20=0.08%, 50=0.12%, 100=3.91%, 250=82.50% lat (msec) : 500=13.36% cpu : usr=0.28%, sys=1.50%, ctx=4291, 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=646KiB/s (661kB/s), 160KiB/s-164KiB/s (164kB/s-168kB/s), io=19.6MiB (20.5MB), run=30916-31075msec WRITE: bw=672KiB/s (688kB/s), 167KiB/s-170KiB/s (171kB/s-174kB/s), io=20.4MiB (21.4MB), run=30916-31075msec 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=181578: Fri Oct 2 10:39:52 2026 read: IOPS=2, BW=82.3MiB/s (86.3MB/s)(40.0MiB/486msec) slat (nsec): min=55427k, max=55427k, avg=55426563.00, stdev= 0.00 clat (nsec): min=396381k, max=396381k, avg=396381267.00, stdev= 0.00 lat (nsec): min=451812k, max=451812k, avg=451811905.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 397], 10.00th=[ 397], 20.00th=[ 397], | 30.00th=[ 397], 40.00th=[ 397], 50.00th=[ 397], 60.00th=[ 397], | 70.00th=[ 397], 80.00th=[ 397], 90.00th=[ 397], 95.00th=[ 397], | 99.00th=[ 397], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 397], | 99.99th=[ 397] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.65%, ctx=3, 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=82.3MiB/s (86.3MB/s), 82.3MiB/s-82.3MiB/s (86.3MB/s-86.3MB/s), io=40.0MiB (41.9MB), run=486-486msec 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