== sanity test 398c: run fio to test AIO ================= 18:13:15 (1781215995) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.577055 s, 72.7 MB/s osc.lustre-OST0000-osc-ffff986f51fd1000.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=180363: Thu Jun 11 18:13:58 2026 write: IOPS=82, BW=330KiB/s (338kB/s)(10.0MiB/31020msec); 0 zone resets slat (usec): min=37, max=10717, avg=276.41, stdev=736.89 clat (msec): min=37, max=341, avg=192.58, stdev=41.49 lat (msec): min=37, max=342, avg=192.86, stdev=41.51 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 136], 10.00th=[ 144], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 247], 95.00th=[ 275], | 99.00th=[ 305], 99.50th=[ 330], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 198, max= 508, per=24.81%, avg=327.51, stdev=65.12, samples=61 iops : min= 49, max= 127, avg=81.48, stdev=16.26, samples=61 lat (msec) : 50=0.08%, 100=0.04%, 250=91.25%, 500=8.63% cpu : usr=0.15%, sys=0.96%, ctx=2034, 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=180364: Thu Jun 11 18:13:58 2026 write: IOPS=82, BW=330KiB/s (338kB/s)(10.0MiB/31015msec); 0 zone resets slat (usec): min=36, max=17483, avg=309.49, stdev=914.03 clat (msec): min=38, max=342, avg=192.64, stdev=41.41 lat (msec): min=38, max=342, avg=192.95, stdev=41.42 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 138], 10.00th=[ 146], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 300], 99.50th=[ 326], 99.90th=[ 338], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 229, max= 485, per=24.85%, avg=328.07, stdev=58.22, samples=61 iops : min= 57, max= 121, avg=81.59, stdev=14.51, samples=61 lat (msec) : 50=0.04%, 100=0.35%, 250=89.10%, 500=10.51% cpu : usr=0.17%, sys=1.24%, ctx=2869, 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=180365: Thu Jun 11 18:13:58 2026 write: IOPS=82, BW=331KiB/s (339kB/s)(10.0MiB/30972msec); 0 zone resets slat (usec): min=37, max=12261, avg=298.01, stdev=823.65 clat (msec): min=29, max=344, avg=192.07, stdev=42.34 lat (msec): min=30, max=344, avg=192.37, stdev=42.37 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 134], 10.00th=[ 142], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 174], 50.00th=[ 188], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 330], 99.95th=[ 338], | 99.99th=[ 347] bw ( KiB/s): min= 245, max= 501, per=24.85%, avg=328.00, stdev=63.03, samples=61 iops : min= 61, max= 125, avg=81.61, stdev=15.74, samples=61 lat (msec) : 50=0.08%, 100=0.62%, 250=88.91%, 500=10.39% cpu : usr=0.15%, sys=1.14%, ctx=2493, 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=180366: Thu Jun 11 18:13:58 2026 write: IOPS=83, BW=335KiB/s (343kB/s)(10.0MiB/30612msec); 0 zone resets slat (usec): min=36, max=19398, avg=317.59, stdev=968.89 clat (msec): min=25, max=404, avg=190.81, stdev=43.79 lat (msec): min=25, max=404, avg=191.13, stdev=43.83 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 132], 10.00th=[ 142], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 209], 80.00th=[ 228], 90.00th=[ 251], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 305], 99.90th=[ 355], 99.95th=[ 355], | 99.99th=[ 405] bw ( KiB/s): min= 230, max= 508, per=25.30%, avg=333.90, stdev=64.05, samples=60 iops : min= 57, max= 127, avg=83.07, stdev=16.00, samples=60 lat (msec) : 50=0.20%, 100=1.91%, 250=87.50%, 500=10.39% cpu : usr=0.19%, sys=1.18%, ctx=2363, 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=1320KiB/s (1352kB/s), 330KiB/s-335KiB/s (338kB/s-343kB/s), io=40.0MiB (41.9MB), run=30612-31020msec 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=180383: Thu Jun 11 18:14:44 2026 read: IOPS=34, BW=136KiB/s (140kB/s)(5048KiB/37013msec) slat (usec): min=3398, max=56354, avg=15901.56, stdev=8299.03 clat (msec): min=97, max=392, avg=216.82, stdev=46.89 lat (msec): min=104, max=420, avg=232.73, stdev=48.66 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 140], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 37, max= 262, per=25.04%, avg=135.71, stdev=35.00, samples=73 iops : min= 9, max= 65, avg=33.44, stdev= 8.79, samples=73 write: IOPS=35, BW=140KiB/s (144kB/s)(5192KiB/37013msec); 0 zone resets slat (usec): min=39, max=19757, avg=341.18, stdev=1059.25 clat (msec): min=102, max=389, avg=225.61, stdev=43.79 lat (msec): min=103, max=389, avg=225.96, stdev=43.77 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 157], 10.00th=[ 171], 20.00th=[ 188], | 30.00th=[ 203], 40.00th=[ 213], 50.00th=[ 226], 60.00th=[ 236], | 70.00th=[ 247], 80.00th=[ 264], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 359], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 29, max= 215, per=24.81%, avg=139.92, stdev=33.33, samples=73 iops : min= 7, max= 53, avg=34.49, stdev= 8.32, samples=73 lat (msec) : 100=0.04%, 250=74.22%, 500=25.74% cpu : usr=0.23%, sys=1.65%, ctx=4405, 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=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=180384: Thu Jun 11 18:14:44 2026 read: IOPS=33, BW=134KiB/s (138kB/s)(4976KiB/36997msec) slat (usec): min=3313, max=54721, avg=15837.50, stdev=8106.74 clat (msec): min=33, max=392, avg=218.39, stdev=46.05 lat (msec): min=46, max=420, avg=234.23, stdev=47.75 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 148], 10.00th=[ 161], 20.00th=[ 182], | 30.00th=[ 192], 40.00th=[ 207], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 257], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 29, max= 215, per=24.69%, avg=133.84, stdev=33.14, samples=73 iops : min= 7, max= 53, avg=32.97, stdev= 8.29, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5264KiB/36997msec); 0 zone resets slat (usec): min=58, max=23259, avg=395.20, stdev=1361.27 clat (msec): min=100, max=448, avg=224.41, stdev=44.98 lat (msec): min=104, max=448, avg=224.81, stdev=44.99 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 153], 10.00th=[ 171], 20.00th=[ 190], | 30.00th=[ 203], 40.00th=[ 211], 50.00th=[ 222], 60.00th=[ 232], | 70.00th=[ 245], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 422], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 79, max= 247, per=25.22%, avg=142.26, stdev=33.41, samples=73 iops : min= 19, max= 61, avg=35.08, stdev= 8.35, samples=73 lat (msec) : 50=0.04%, 100=0.16%, 250=74.88%, 500=24.92% cpu : usr=0.20%, sys=1.82%, ctx=4660, 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=180385: Thu Jun 11 18:14:44 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4984KiB/36889msec) slat (usec): min=1136, max=60814, avg=16218.40, stdev=8627.07 clat (msec): min=25, max=375, avg=217.94, stdev=47.84 lat (msec): min=56, max=401, avg=234.17, stdev=49.38 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 257], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 79, max= 223, per=24.92%, avg=135.07, stdev=30.35, samples=73 iops : min= 19, max= 55, avg=33.27, stdev= 7.62, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5256KiB/36889msec); 0 zone resets slat (usec): min=40, max=19717, avg=364.56, stdev=1181.54 clat (msec): min=98, max=424, avg=225.21, stdev=45.80 lat (msec): min=99, max=424, avg=225.58, stdev=45.81 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 234], | 70.00th=[ 247], 80.00th=[ 262], 90.00th=[ 288], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 393], 99.90th=[ 401], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 71, max= 223, per=25.09%, avg=141.52, stdev=34.48, samples=73 iops : min= 17, max= 55, avg=34.90, stdev= 8.59, samples=73 lat (msec) : 50=0.12%, 100=0.16%, 250=73.55%, 500=26.17% cpu : usr=0.27%, sys=1.70%, ctx=4094, 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=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=180386: Thu Jun 11 18:14:44 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/37007msec) slat (usec): min=3326, max=67804, avg=15708.13, stdev=8066.14 clat (msec): min=26, max=377, avg=217.93, stdev=47.45 lat (msec): min=35, max=383, avg=233.65, stdev=48.86 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 144], 10.00th=[ 161], 20.00th=[ 180], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 232], | 70.00th=[ 243], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 334], 99.50th=[ 347], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 52, max= 254, per=25.15%, avg=136.30, stdev=32.80, samples=73 iops : min= 13, max= 63, avg=33.60, stdev= 8.21, samples=73 write: IOPS=34, BW=140KiB/s (143kB/s)(5180KiB/37007msec); 0 zone resets slat (usec): min=44, max=24779, avg=377.83, stdev=1416.92 clat (msec): min=101, max=372, avg=225.61, stdev=44.15 lat (msec): min=101, max=372, avg=225.99, stdev=44.18 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 215], 50.00th=[ 226], 60.00th=[ 236], | 70.00th=[ 247], 80.00th=[ 264], 90.00th=[ 288], 95.00th=[ 300], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 359], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 52, max= 200, per=24.65%, avg=139.00, stdev=32.09, samples=73 iops : min= 13, max= 50, avg=34.27, stdev= 8.01, samples=73 lat (msec) : 50=0.08%, 100=0.23%, 250=73.75%, 500=25.94% cpu : usr=0.22%, sys=1.79%, ctx=4586, 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=542KiB/s (555kB/s), 134KiB/s-137KiB/s (138kB/s-140kB/s), io=19.6MiB (20.5MB), run=36889-37013msec WRITE: bw=564KiB/s (578kB/s), 140KiB/s-142KiB/s (143kB/s-146kB/s), io=20.4MiB (21.4MB), run=36889-37013msec 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=180396: Thu Jun 11 18:14:56 2026 read: IOPS=1, BW=57.7MiB/s (60.5MB/s)(40.0MiB/693msec) slat (nsec): min=35111k, max=35111k, avg=35111111.00, stdev= 0.00 clat (nsec): min=624226k, max=624226k, avg=624225883.00, stdev= 0.00 lat (nsec): min=659342k, max=659342k, avg=659342151.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 625], 5.00th=[ 625], 10.00th=[ 625], 20.00th=[ 625], | 30.00th=[ 625], 40.00th=[ 625], 50.00th=[ 625], 60.00th=[ 625], | 70.00th=[ 625], 80.00th=[ 625], 90.00th=[ 625], 95.00th=[ 625], | 99.00th=[ 625], 99.50th=[ 625], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.88%, 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=57.7MiB/s (60.5MB/s), 57.7MiB/s-57.7MiB/s (60.5MB/s-60.5MB/s), io=40.0MiB (41.9MB), run=693-693msec 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