== sanity test 398c: run fio to test AIO ================= 02:23:46 (1788848626) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.415284 s, 101 MB/s osc.lustre-OST0000-osc-ffff8c5daea0f000.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=180711: Tue Sep 8 02:24:26 2026 write: IOPS=89, BW=360KiB/s (368kB/s)(10.0MiB/28466msec); 0 zone resets slat (usec): min=23, max=15916, avg=139.90, stdev=646.84 clat (msec): min=49, max=414, avg=177.19, stdev=42.38 lat (msec): min=49, max=414, avg=177.33, stdev=42.43 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 117], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 199], 80.00th=[ 220], 90.00th=[ 234], 95.00th=[ 255], | 99.00th=[ 284], 99.50th=[ 288], 99.90th=[ 288], 99.95th=[ 309], | 99.99th=[ 414] bw ( KiB/s): min= 250, max= 512, per=24.94%, avg=358.43, stdev=80.36, samples=56 iops : min= 62, max= 128, avg=89.30, stdev=20.16, samples=56 lat (msec) : 50=0.04%, 100=1.29%, 250=92.42%, 500=6.25% cpu : usr=0.12%, sys=0.56%, ctx=524, 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=180712: Tue Sep 8 02:24:26 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28498msec); 0 zone resets slat (usec): min=27, max=13836, avg=149.97, stdev=602.86 clat (msec): min=30, max=376, avg=177.32, stdev=42.71 lat (msec): min=31, max=376, avg=177.47, stdev=42.72 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 257], | 99.00th=[ 288], 99.50th=[ 300], 99.90th=[ 300], 99.95th=[ 317], | 99.99th=[ 376] bw ( KiB/s): min= 192, max= 533, per=24.96%, avg=358.73, stdev=67.47, samples=56 iops : min= 48, max= 133, avg=89.36, stdev=16.90, samples=56 lat (msec) : 50=0.04%, 100=1.88%, 250=92.54%, 500=5.55% cpu : usr=0.12%, sys=0.76%, ctx=1727, 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=180713: Tue Sep 8 02:24:26 2026 write: IOPS=90, BW=361KiB/s (369kB/s)(10.0MiB/28399msec); 0 zone resets slat (usec): min=28, max=18559, avg=222.37, stdev=905.20 clat (msec): min=21, max=446, avg=177.09, stdev=44.27 lat (msec): min=22, max=446, avg=177.32, stdev=44.26 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 115], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 199], 80.00th=[ 218], 90.00th=[ 236], 95.00th=[ 253], | 99.00th=[ 284], 99.50th=[ 296], 99.90th=[ 422], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 237, max= 565, per=25.08%, avg=360.36, stdev=64.77, samples=56 iops : min= 59, max= 141, avg=89.77, stdev=16.23, samples=56 lat (msec) : 50=0.12%, 100=2.46%, 250=91.80%, 500=5.62% cpu : usr=0.23%, sys=1.03%, ctx=2720, 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=180714: Tue Sep 8 02:24:26 2026 write: IOPS=90, BW=360KiB/s (369kB/s)(10.0MiB/28435msec); 0 zone resets slat (usec): min=22, max=17620, avg=188.25, stdev=739.01 clat (msec): min=23, max=457, avg=176.96, stdev=43.72 lat (msec): min=23, max=457, avg=177.15, stdev=43.72 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 114], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 251], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 456], 99.95th=[ 456], | 99.99th=[ 456] bw ( KiB/s): min= 248, max= 520, per=25.06%, avg=360.14, stdev=67.25, samples=56 iops : min= 62, max= 130, avg=89.73, stdev=16.82, samples=56 lat (msec) : 50=0.35%, 100=2.54%, 250=91.60%, 500=5.51% cpu : usr=0.17%, sys=0.97%, ctx=2323, 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=1437KiB/s (1472kB/s), 359KiB/s-361KiB/s (368kB/s-369kB/s), io=40.0MiB (41.9MB), run=28399-28498msec 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=180730: Tue Sep 8 02:25:07 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5048KiB/30397msec) slat (usec): min=2361, max=59810, avg=13242.92, stdev=7816.72 clat (msec): min=17, max=347, avg=179.15, stdev=44.06 lat (msec): min=36, max=367, avg=192.40, stdev=45.71 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 239], 95.00th=[ 264], | 99.00th=[ 305], 99.50th=[ 313], 99.90th=[ 338], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 82, max= 279, per=25.13%, avg=165.60, stdev=38.79, samples=60 iops : min= 20, max= 69, avg=40.98, stdev= 9.70, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5192KiB/30397msec); 0 zone resets slat (usec): min=32, max=21901, avg=217.12, stdev=918.86 clat (msec): min=90, max=348, avg=184.00, stdev=41.48 lat (msec): min=90, max=349, avg=184.21, stdev=41.45 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 124], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 300], 99.50th=[ 305], 99.90th=[ 317], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 75, max= 250, per=24.89%, avg=170.77, stdev=38.49, samples=60 iops : min= 18, max= 62, avg=42.27, stdev= 9.68, samples=60 lat (msec) : 20=0.04%, 100=0.43%, 250=92.54%, 500=6.99% cpu : usr=0.21%, sys=1.62%, ctx=3997, 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=180731: Tue Sep 8 02:25:07 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(4976KiB/30082msec) slat (usec): min=35, max=74135, avg=13286.52, stdev=7877.31 clat (msec): min=22, max=332, avg=177.17, stdev=44.37 lat (msec): min=28, max=343, avg=190.46, stdev=46.08 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 87, max= 263, per=25.01%, avg=164.85, stdev=39.53, samples=59 iops : min= 21, max= 65, avg=40.78, stdev= 9.96, samples=59 write: IOPS=43, BW=175KiB/s (179kB/s)(5264KiB/30082msec); 0 zone resets slat (usec): min=28, max=12445, avg=202.14, stdev=698.95 clat (msec): min=100, max=342, avg=184.82, stdev=42.42 lat (msec): min=100, max=342, avg=185.03, stdev=42.44 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 96, max= 257, per=25.52%, avg=175.08, stdev=38.91, samples=59 iops : min= 24, max= 64, avg=43.36, stdev= 9.74, samples=59 lat (msec) : 50=0.23%, 100=0.47%, 250=91.48%, 500=7.81% cpu : usr=0.25%, sys=1.65%, ctx=4150, 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=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=180732: Tue Sep 8 02:25:07 2026 read: IOPS=40, BW=164KiB/s (168kB/s)(4984KiB/30402msec) slat (usec): min=2374, max=75183, avg=13283.33, stdev=7689.54 clat (msec): min=8, max=353, avg=177.83, stdev=45.02 lat (msec): min=17, max=364, avg=191.12, stdev=46.88 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 116], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 239], 95.00th=[ 259], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 338], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 54, max= 248, per=24.90%, avg=164.08, stdev=43.79, samples=60 iops : min= 13, max= 62, avg=40.58, stdev=11.02, samples=60 write: IOPS=43, BW=173KiB/s (177kB/s)(5256KiB/30402msec); 0 zone resets slat (usec): min=30, max=14044, avg=203.06, stdev=650.96 clat (msec): min=85, max=341, avg=185.03, stdev=43.91 lat (msec): min=85, max=341, avg=185.23, stdev=43.94 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 126], 10.00th=[ 134], 20.00th=[ 148], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 271], | 99.00th=[ 309], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 54, max= 264, per=25.12%, avg=172.32, stdev=40.59, samples=60 iops : min= 13, max= 66, avg=42.65, stdev=10.15, samples=60 lat (msec) : 10=0.04%, 50=0.08%, 100=0.59%, 250=91.45%, 500=7.85% cpu : usr=0.24%, sys=1.67%, ctx=4409, 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=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=180733: Tue Sep 8 02:25:07 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(5060KiB/30421msec) slat (usec): min=2635, max=54756, avg=13241.61, stdev=7710.25 clat (msec): min=58, max=331, avg=178.92, stdev=43.68 lat (msec): min=64, max=346, avg=192.17, stdev=45.36 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 264], | 99.00th=[ 305], 99.50th=[ 309], 99.90th=[ 330], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 68, max= 255, per=25.13%, avg=165.60, stdev=37.21, samples=60 iops : min= 17, max= 63, avg=40.98, stdev= 9.33, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5180KiB/30421msec); 0 zone resets slat (usec): min=33, max=16884, avg=184.72, stdev=679.64 clat (msec): min=64, max=358, avg=184.87, stdev=42.90 lat (msec): min=64, max=358, avg=185.06, stdev=42.89 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 126], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 245], 95.00th=[ 268], | 99.00th=[ 305], 99.50th=[ 321], 99.90th=[ 342], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 75, max= 263, per=24.64%, avg=169.02, stdev=39.60, samples=60 iops : min= 18, max= 65, avg=41.83, stdev= 9.89, samples=60 lat (msec) : 100=0.51%, 250=91.84%, 500=7.66% cpu : usr=0.25%, sys=1.51%, ctx=4252, 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=660KiB/s (676kB/s), 164KiB/s-166KiB/s (168kB/s-170kB/s), io=19.6MiB (20.5MB), run=30082-30421msec WRITE: bw=687KiB/s (703kB/s), 170KiB/s-175KiB/s (174kB/s-179kB/s), io=20.4MiB (21.4MB), run=30082-30421msec 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=180743: Tue Sep 8 02:25:15 2026 read: IOPS=1, BW=65.0MiB/s (68.2MB/s)(40.0MiB/615msec) slat (nsec): min=24058k, max=24058k, avg=24058083.00, stdev= 0.00 clat (nsec): min=568861k, max=568861k, avg=568860998.00, stdev= 0.00 lat (nsec): min=592924k, max=592924k, avg=592923686.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.16%, sys=2.28%, ctx=6, 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=65.0MiB/s (68.2MB/s), 65.0MiB/s-65.0MiB/s (68.2MB/s-68.2MB/s), io=40.0MiB (41.9MB), run=615-615msec 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