== sanity test 398c: run fio to test AIO ================= 10:02:22 (1788444142) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.373881 s, 112 MB/s osc.lustre-OST0000-osc-ffff9ab10320f000.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=181051: Thu Sep 3 10:02:57 2026 write: IOPS=98, BW=393KiB/s (403kB/s)(10.0MiB/26037msec); 0 zone resets slat (usec): min=21, max=23831, avg=174.59, stdev=867.60 clat (msec): min=73, max=380, avg=161.57, stdev=43.36 lat (msec): min=73, max=380, avg=161.74, stdev=43.37 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 103], 10.00th=[ 112], 20.00th=[ 125], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 380] bw ( KiB/s): min= 250, max= 629, per=24.78%, avg=389.78, stdev=92.79, samples=51 iops : min= 62, max= 157, avg=97.08, stdev=23.28, samples=51 lat (msec) : 100=4.61%, 250=92.46%, 500=2.93% cpu : usr=0.15%, sys=0.94%, ctx=1899, 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=181052: Thu Sep 3 10:02:57 2026 write: IOPS=98, BW=394KiB/s (404kB/s)(10.0MiB/25974msec); 0 zone resets slat (usec): min=21, max=19184, avg=239.34, stdev=907.79 clat (msec): min=27, max=375, avg=161.84, stdev=43.59 lat (msec): min=27, max=375, avg=162.09, stdev=43.61 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 292], 99.50th=[ 313], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 376] bw ( KiB/s): min= 207, max= 589, per=24.93%, avg=392.12, stdev=84.06, samples=51 iops : min= 51, max= 147, avg=97.67, stdev=21.10, samples=51 lat (msec) : 50=0.08%, 100=4.49%, 250=92.62%, 500=2.81% cpu : usr=0.23%, sys=1.10%, ctx=2618, 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=181053: Thu Sep 3 10:02:57 2026 write: IOPS=98, BW=395KiB/s (404kB/s)(10.0MiB/25929msec); 0 zone resets slat (usec): min=21, max=9621, avg=133.32, stdev=445.26 clat (msec): min=73, max=377, avg=161.25, stdev=44.10 lat (msec): min=74, max=377, avg=161.38, stdev=44.10 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 182], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 234], | 99.00th=[ 300], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 135, max= 600, per=24.91%, avg=391.90, stdev=99.71, samples=51 iops : min= 33, max= 150, avg=97.65, stdev=25.04, samples=51 lat (msec) : 100=4.92%, 250=91.33%, 500=3.75% cpu : usr=0.14%, sys=0.79%, ctx=1361, 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=181054: Thu Sep 3 10:02:57 2026 write: IOPS=98, BW=393KiB/s (403kB/s)(10.0MiB/26025msec); 0 zone resets slat (usec): min=21, max=24400, avg=218.57, stdev=1015.00 clat (msec): min=49, max=376, avg=161.61, stdev=44.37 lat (msec): min=49, max=376, avg=161.83, stdev=44.38 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 136], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 167], | 70.00th=[ 180], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 241], | 99.00th=[ 300], 99.50th=[ 321], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 223, max= 533, per=24.81%, avg=390.33, stdev=84.12, samples=51 iops : min= 55, max= 133, avg=97.22, stdev=21.15, samples=51 lat (msec) : 50=0.04%, 100=4.18%, 250=91.88%, 500=3.91% cpu : usr=0.22%, sys=1.16%, ctx=2708, 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=1573KiB/s (1611kB/s), 393KiB/s-395KiB/s (403kB/s-404kB/s), io=40.0MiB (41.9MB), run=25929-26037msec 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=181069: Thu Sep 3 10:03:38 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5048KiB/30584msec) slat (usec): min=32, max=59502, avg=13436.36, stdev=7934.72 clat (msec): min=30, max=468, avg=180.18, stdev=56.89 lat (msec): min=43, max=495, avg=193.64, stdev=59.16 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 103], 10.00th=[ 117], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 186], | 70.00th=[ 203], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 288], | 99.00th=[ 363], 99.50th=[ 380], 99.90th=[ 435], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 79, max= 304, per=25.27%, avg=164.73, stdev=44.54, samples=60 iops : min= 19, max= 76, avg=40.77, stdev=11.20, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5192KiB/30584msec); 0 zone resets slat (usec): min=31, max=15322, avg=235.36, stdev=843.65 clat (msec): min=33, max=448, avg=185.60, stdev=55.10 lat (msec): min=33, max=448, avg=185.84, stdev=55.09 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 108], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 443], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 78, max= 280, per=25.00%, avg=169.75, stdev=46.76, samples=60 iops : min= 19, max= 70, avg=42.00, stdev=11.79, samples=60 lat (msec) : 50=0.27%, 100=3.20%, 250=86.21%, 500=10.31% cpu : usr=0.24%, sys=1.95%, ctx=4550, 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=181070: Thu Sep 3 10:03:38 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4976KiB/30748msec) slat (msec): min=2, max=189, avg=13.95, stdev= 9.70 clat (msec): min=12, max=395, avg=182.45, stdev=56.05 lat (msec): min=17, max=417, avg=196.41, stdev=58.23 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 62, max= 280, per=24.63%, avg=160.58, stdev=43.86, samples=60 iops : min= 15, max= 70, avg=39.72, stdev=11.02, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5264KiB/30748msec); 0 zone resets slat (usec): min=26, max=15635, avg=244.96, stdev=880.71 clat (msec): min=57, max=377, avg=184.61, stdev=54.75 lat (msec): min=57, max=377, avg=184.86, stdev=54.77 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 107], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 224], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 363], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 55, max= 288, per=25.02%, avg=169.90, stdev=49.98, samples=60 iops : min= 13, max= 72, avg=42.03, stdev=12.60, samples=60 lat (msec) : 20=0.04%, 50=0.08%, 100=3.16%, 250=84.80%, 500=11.91% cpu : usr=0.32%, sys=1.82%, ctx=4003, 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=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=181071: Thu Sep 3 10:03:38 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(4984KiB/30733msec) slat (usec): min=3062, max=80047, avg=13862.27, stdev=8477.54 clat (msec): min=22, max=403, avg=180.99, stdev=56.52 lat (msec): min=33, max=442, avg=194.86, stdev=59.06 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 104], 10.00th=[ 117], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 174], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 255], 95.00th=[ 284], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 397], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 47, max= 270, per=24.79%, avg=161.60, stdev=47.99, samples=60 iops : min= 11, max= 67, avg=39.97, stdev=12.09, samples=60 write: IOPS=42, BW=171KiB/s (175kB/s)(5256KiB/30733msec); 0 zone resets slat (usec): min=28, max=18448, avg=226.76, stdev=877.26 clat (msec): min=21, max=427, avg=185.70, stdev=54.36 lat (msec): min=22, max=427, avg=185.93, stdev=54.38 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 228], 90.00th=[ 255], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 380], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 87, max= 296, per=24.98%, avg=169.60, stdev=47.79, samples=60 iops : min= 21, max= 74, avg=41.97, stdev=12.02, samples=60 lat (msec) : 50=0.12%, 100=2.62%, 250=86.05%, 500=11.21% cpu : usr=0.25%, sys=1.88%, ctx=4236, 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=181072: Thu Sep 3 10:03:38 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5060KiB/30597msec) slat (usec): min=37, max=103203, avg=13563.71, stdev=8406.94 clat (msec): min=26, max=441, avg=180.60, stdev=54.60 lat (msec): min=30, max=470, avg=194.17, stdev=56.93 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 150], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 253], 95.00th=[ 284], | 99.00th=[ 355], 99.50th=[ 384], 99.90th=[ 397], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 63, max= 280, per=25.40%, avg=165.58, stdev=45.52, samples=60 iops : min= 15, max= 70, avg=40.97, stdev=11.52, samples=60 write: IOPS=42, BW=169KiB/s (173kB/s)(5180KiB/30597msec); 0 zone resets slat (usec): min=28, max=48349, avg=269.20, stdev=1657.91 clat (msec): min=65, max=399, avg=187.34, stdev=56.80 lat (msec): min=65, max=399, avg=187.61, stdev=56.90 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 109], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 207], 80.00th=[ 226], 90.00th=[ 262], 95.00th=[ 300], | 99.00th=[ 376], 99.50th=[ 397], 99.90th=[ 397], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 85, max= 296, per=24.86%, avg=168.82, stdev=45.74, samples=60 iops : min= 21, max= 74, avg=41.77, stdev=11.49, samples=60 lat (msec) : 50=0.12%, 100=2.89%, 250=85.39%, 500=11.60% cpu : usr=0.28%, sys=1.70%, ctx=4275, 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=653KiB/s (668kB/s), 162KiB/s-165KiB/s (166kB/s-169kB/s), io=19.6MiB (20.5MB), run=30584-30748msec WRITE: bw=679KiB/s (696kB/s), 169KiB/s-171KiB/s (173kB/s-175kB/s), io=20.4MiB (21.4MB), run=30584-30748msec 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=181081: Thu Sep 3 10:03:50 2026 read: IOPS=1, BW=51.5MiB/s (53.0MB/s)(40.0MiB/777msec) slat (nsec): min=43545k, max=43545k, avg=43544599.00, stdev= 0.00 clat (nsec): min=695171k, max=695171k, avg=695171421.00, stdev= 0.00 lat (nsec): min=738721k, max=738721k, avg=738721170.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.03%, ctx=5, 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=51.5MiB/s (53.0MB/s), 51.5MiB/s-51.5MiB/s (53.0MB/s-53.0MB/s), io=40.0MiB (41.9MB), run=777-777msec 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