== sanity test 398c: run fio to test AIO ================= 06:03:32 (1788516212) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.405463 s, 103 MB/s osc.lustre-OST0000-osc-ffff96751088a800.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=180254: Fri Sep 4 06:04:10 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28862msec); 0 zone resets slat (usec): min=51, max=11536, avg=318.60, stdev=738.75 clat (msec): min=45, max=295, avg=179.29, stdev=37.60 lat (msec): min=46, max=295, avg=179.62, stdev=37.59 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 241], | 99.00th=[ 268], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 296] bw ( KiB/s): min= 255, max= 512, per=24.88%, avg=353.05, stdev=68.51, samples=57 iops : min= 63, max= 128, avg=87.84, stdev=17.14, samples=57 lat (msec) : 50=0.04%, 100=0.70%, 250=95.82%, 500=3.44% cpu : usr=0.17%, sys=1.40%, ctx=2628, 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=180255: Fri Sep 4 06:04:10 2026 write: IOPS=89, BW=357KiB/s (366kB/s)(10.0MiB/28685msec); 0 zone resets slat (usec): min=52, max=14379, avg=374.16, stdev=890.56 clat (msec): min=21, max=296, avg=178.75, stdev=40.27 lat (msec): min=22, max=296, avg=179.13, stdev=40.25 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 113], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 230], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 254, max= 572, per=25.10%, avg=356.18, stdev=72.04, samples=56 iops : min= 63, max= 143, avg=88.62, stdev=18.04, samples=56 lat (msec) : 50=0.16%, 100=2.62%, 250=93.48%, 500=3.75% cpu : usr=0.19%, sys=1.45%, ctx=2913, 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=180256: Fri Sep 4 06:04:10 2026 write: IOPS=88, BW=356KiB/s (364kB/s)(10.0MiB/28794msec); 0 zone resets slat (usec): min=41, max=14777, avg=287.43, stdev=785.33 clat (msec): min=30, max=289, avg=179.04, stdev=38.05 lat (msec): min=30, max=289, avg=179.33, stdev=38.05 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 171], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 292], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 255, max= 507, per=24.97%, avg=354.35, stdev=67.23, samples=57 iops : min= 63, max= 126, avg=88.14, stdev=16.81, samples=57 lat (msec) : 50=0.08%, 100=0.70%, 250=95.70%, 500=3.52% cpu : usr=0.12%, sys=1.10%, ctx=2247, 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=180257: Fri Sep 4 06:04:10 2026 write: IOPS=88, BW=355KiB/s (363kB/s)(10.0MiB/28862msec); 0 zone resets slat (usec): min=38, max=15302, avg=366.07, stdev=945.78 clat (msec): min=11, max=291, avg=179.32, stdev=38.30 lat (msec): min=11, max=291, avg=179.69, stdev=38.27 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 117], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 201], 80.00th=[ 211], 90.00th=[ 228], 95.00th=[ 247], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 255, max= 571, per=24.92%, avg=353.60, stdev=69.05, samples=57 iops : min= 63, max= 142, avg=87.96, stdev=17.28, samples=57 lat (msec) : 20=0.08%, 50=0.04%, 100=1.02%, 250=94.69%, 500=4.18% cpu : usr=0.24%, sys=1.30%, ctx=2837, 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 Run status group 0 (all jobs): WRITE: bw=1419KiB/s (1453kB/s), 355KiB/s-357KiB/s (363kB/s-366kB/s), io=40.0MiB (41.9MB), run=28685-28862msec 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=180271: Fri Sep 4 06:04:56 2026 read: IOPS=34, BW=136KiB/s (140kB/s)(5048KiB/37049msec) slat (usec): min=59, max=75769, avg=16907.40, stdev=10346.27 clat (msec): min=24, max=588, avg=219.28, stdev=72.48 lat (msec): min=24, max=623, avg=236.19, stdev=76.13 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 123], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 271], 90.00th=[ 313], 95.00th=[ 355], | 99.00th=[ 456], 99.50th=[ 502], 99.90th=[ 584], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 55, max= 227, per=25.16%, avg=135.37, stdev=39.92, samples=73 iops : min= 13, max= 56, avg=33.33, stdev= 9.98, samples=73 write: IOPS=35, BW=140KiB/s (144kB/s)(5192KiB/37049msec); 0 zone resets slat (usec): min=56, max=26548, avg=416.93, stdev=1321.14 clat (msec): min=57, max=648, avg=226.04, stdev=74.97 lat (msec): min=57, max=648, avg=226.46, stdev=74.97 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 132], 10.00th=[ 146], 20.00th=[ 167], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 213], 60.00th=[ 230], | 70.00th=[ 253], 80.00th=[ 284], 90.00th=[ 321], 95.00th=[ 363], | 99.00th=[ 468], 99.50th=[ 523], 99.90th=[ 592], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 31, max= 295, per=24.90%, avg=139.42, stdev=48.72, samples=73 iops : min= 7, max= 73, avg=34.36, stdev=12.21, samples=73 lat (msec) : 50=0.20%, 100=0.78%, 250=70.35%, 500=28.01%, 750=0.66% cpu : usr=0.28%, sys=1.65%, ctx=4208, 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=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=180272: Fri Sep 4 06:04:56 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(4976KiB/37207msec) slat (usec): min=3155, max=94447, avg=17136.21, stdev=10850.52 clat (msec): min=71, max=598, avg=220.94, stdev=72.27 lat (msec): min=81, max=616, avg=238.08, stdev=76.13 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 194], 50.00th=[ 209], 60.00th=[ 226], | 70.00th=[ 243], 80.00th=[ 271], 90.00th=[ 317], 95.00th=[ 368], | 99.00th=[ 451], 99.50th=[ 481], 99.90th=[ 567], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 15, max= 239, per=24.80%, avg=133.44, stdev=39.35, samples=73 iops : min= 3, max= 59, avg=32.86, stdev= 9.83, samples=73 write: IOPS=35, BW=141KiB/s (145kB/s)(5264KiB/37207msec); 0 zone resets slat (usec): min=53, max=18518, avg=392.81, stdev=1014.01 clat (msec): min=86, max=595, avg=224.98, stdev=73.72 lat (msec): min=86, max=595, avg=225.38, stdev=73.74 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 138], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 271], 90.00th=[ 321], 95.00th=[ 380], | 99.00th=[ 472], 99.50th=[ 518], 99.90th=[ 550], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 47, max= 263, per=25.24%, avg=141.36, stdev=47.35, samples=73 iops : min= 11, max= 65, avg=34.84, stdev=11.85, samples=73 lat (msec) : 100=0.70%, 250=71.95%, 500=26.76%, 750=0.59% cpu : usr=0.24%, sys=1.87%, ctx=4090, 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=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=180273: Fri Sep 4 06:04:56 2026 read: IOPS=33, BW=134KiB/s (137kB/s)(4984KiB/37251msec) slat (usec): min=2816, max=71048, avg=16958.52, stdev=10308.32 clat (msec): min=88, max=534, avg=219.99, stdev=69.42 lat (msec): min=102, max=559, avg=236.95, stdev=73.38 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 321], 95.00th=[ 355], | 99.00th=[ 426], 99.50th=[ 460], 99.90th=[ 531], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 47, max= 263, per=24.94%, avg=134.15, stdev=42.02, samples=73 iops : min= 11, max= 65, avg=33.03, stdev=10.46, samples=73 write: IOPS=35, BW=141KiB/s (144kB/s)(5256KiB/37251msec); 0 zone resets slat (usec): min=48, max=14404, avg=357.11, stdev=1039.54 clat (msec): min=87, max=538, avg=226.13, stdev=71.93 lat (msec): min=87, max=538, avg=226.50, stdev=71.92 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 275], 90.00th=[ 326], 95.00th=[ 368], | 99.00th=[ 451], 99.50th=[ 514], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] bw ( KiB/s): min= 63, max= 238, per=25.11%, avg=140.63, stdev=41.99, samples=73 iops : min= 15, max= 59, avg=34.67, stdev=10.53, samples=73 lat (msec) : 100=0.59%, 250=71.45%, 500=27.50%, 750=0.47% cpu : usr=0.14%, sys=1.57%, ctx=3520, 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=180274: Fri Sep 4 06:04:56 2026 read: IOPS=33, BW=136KiB/s (139kB/s)(5060KiB/37249msec) slat (usec): min=3178, max=94061, avg=16857.31, stdev=10347.05 clat (msec): min=44, max=551, avg=220.62, stdev=70.64 lat (msec): min=64, max=598, avg=237.48, stdev=74.27 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 163], | 30.00th=[ 178], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 275], 90.00th=[ 321], 95.00th=[ 359], | 99.00th=[ 422], 99.50th=[ 435], 99.90th=[ 518], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 47, max= 239, per=25.24%, avg=135.78, stdev=39.17, samples=73 iops : min= 11, max= 59, avg=33.47, stdev= 9.79, samples=73 write: IOPS=34, BW=139KiB/s (142kB/s)(5180KiB/37249msec); 0 zone resets slat (usec): min=52, max=21518, avg=425.15, stdev=1324.09 clat (msec): min=56, max=569, avg=225.89, stdev=70.06 lat (msec): min=57, max=569, avg=226.32, stdev=70.09 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 171], | 30.00th=[ 184], 40.00th=[ 201], 50.00th=[ 218], 60.00th=[ 234], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 317], 95.00th=[ 359], | 99.00th=[ 460], 99.50th=[ 472], 99.90th=[ 523], 99.95th=[ 567], | 99.99th=[ 567] bw ( KiB/s): min= 61, max= 253, per=24.71%, avg=138.38, stdev=41.07, samples=73 iops : min= 15, max= 63, avg=34.10, stdev=10.29, samples=73 lat (msec) : 50=0.04%, 100=0.62%, 250=71.17%, 500=27.77%, 750=0.39% cpu : usr=0.21%, sys=1.63%, ctx=4009, 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=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=539KiB/s (552kB/s), 134KiB/s-136KiB/s (137kB/s-140kB/s), io=19.6MiB (20.5MB), run=37049-37251msec WRITE: bw=561KiB/s (574kB/s), 139KiB/s-141KiB/s (142kB/s-145kB/s), io=20.4MiB (21.4MB), run=37049-37251msec 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=180287: Fri Sep 4 06:05:10 2026 read: IOPS=1, BW=52.2MiB/s (54.8MB/s)(40.0MiB/766msec) slat (nsec): min=76694k, max=76694k, avg=76693572.00, stdev= 0.00 clat (nsec): min=651763k, max=651763k, avg=651762887.00, stdev= 0.00 lat (nsec): min=728461k, max=728461k, avg=728460622.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 651], 5.00th=[ 651], 10.00th=[ 651], 20.00th=[ 651], | 30.00th=[ 651], 40.00th=[ 651], 50.00th=[ 651], 60.00th=[ 651], | 70.00th=[ 651], 80.00th=[ 651], 90.00th=[ 651], 95.00th=[ 651], | 99.00th=[ 651], 99.50th=[ 651], 99.90th=[ 651], 99.95th=[ 651], | 99.99th=[ 651] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.57%, ctx=8, majf=0, minf=7 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=52.2MiB/s (54.8MB/s), 52.2MiB/s-52.2MiB/s (54.8MB/s-54.8MB/s), io=40.0MiB (41.9MB), run=766-766msec 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