== sanity test 398c: run fio to test AIO ================= 11:53:33 (1788364413) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.157421 s, 266 MB/s osc.lustre-OST0000-osc-ffff98a002e44800.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=183927: Wed Sep 2 11:53:45 2026 write: IOPS=312, BW=1250KiB/s (1280kB/s)(10.0MiB/8193msec); 0 zone resets slat (usec): min=44, max=25980, avg=212.46, stdev=528.29 clat (msec): min=6, max=103, avg=50.67, stdev=12.38 lat (msec): min=7, max=103, avg=50.88, stdev=12.36 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 34], 10.00th=[ 37], 20.00th=[ 40], | 30.00th=[ 43], 40.00th=[ 47], 50.00th=[ 51], 60.00th=[ 53], | 70.00th=[ 57], 80.00th=[ 62], 90.00th=[ 68], 95.00th=[ 72], | 99.00th=[ 84], 99.50th=[ 92], 99.90th=[ 100], 99.95th=[ 104], | 99.99th=[ 105] bw ( KiB/s): min= 952, max= 1640, per=25.03%, avg=1250.38, stdev=200.83, samples=16 iops : min= 238, max= 410, avg=312.50, stdev=50.20, samples=16 lat (msec) : 10=0.12%, 20=0.39%, 50=49.41%, 100=50.00%, 250=0.08% cpu : usr=0.50%, sys=5.08%, ctx=2637, 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=183928: Wed Sep 2 11:53:45 2026 write: IOPS=313, BW=1253KiB/s (1283kB/s)(10.0MiB/8173msec); 0 zone resets slat (usec): min=38, max=3157, avg=190.28, stdev=129.19 clat (msec): min=13, max=107, avg=50.82, stdev=12.27 lat (msec): min=14, max=107, avg=51.01, stdev=12.28 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 34], 10.00th=[ 37], 20.00th=[ 40], | 30.00th=[ 43], 40.00th=[ 47], 50.00th=[ 51], 60.00th=[ 53], | 70.00th=[ 57], 80.00th=[ 62], 90.00th=[ 68], 95.00th=[ 73], | 99.00th=[ 84], 99.50th=[ 91], 99.90th=[ 107], 99.95th=[ 108], | 99.99th=[ 108] bw ( KiB/s): min= 912, max= 1656, per=25.02%, avg=1249.81, stdev=207.00, samples=16 iops : min= 228, max= 414, avg=312.38, stdev=51.73, samples=16 lat (msec) : 20=0.35%, 50=49.73%, 100=49.73%, 250=0.20% cpu : usr=0.43%, sys=4.36%, ctx=2641, 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=183929: Wed Sep 2 11:53:45 2026 write: IOPS=312, BW=1249KiB/s (1279kB/s)(10.0MiB/8198msec); 0 zone resets slat (usec): min=34, max=3426, avg=176.33, stdev=153.44 clat (usec): min=6339, max=95690, avg=50719.40, stdev=11814.14 lat (usec): min=6717, max=95772, avg=50897.11, stdev=11832.69 clat percentiles (usec): | 1.00th=[30540], 5.00th=[33817], 10.00th=[36439], 20.00th=[39584], | 30.00th=[43254], 40.00th=[46924], 50.00th=[50070], 60.00th=[52691], | 70.00th=[56886], 80.00th=[61080], 90.00th=[66847], 95.00th=[70779], | 99.00th=[79168], 99.50th=[88605], 99.90th=[94897], 99.95th=[94897], | 99.99th=[95945] bw ( KiB/s): min= 920, max= 1624, per=24.96%, avg=1247.00, stdev=197.71, samples=16 iops : min= 230, max= 406, avg=311.69, stdev=49.43, samples=16 lat (msec) : 10=0.08%, 50=49.14%, 100=50.78% cpu : usr=0.50%, sys=3.90%, ctx=2592, 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=183930: Wed Sep 2 11:53:45 2026 write: IOPS=312, BW=1249KiB/s (1279kB/s)(10.0MiB/8198msec); 0 zone resets slat (usec): min=38, max=22910, avg=216.07, stdev=472.30 clat (msec): min=13, max=108, avg=50.69, stdev=12.21 lat (msec): min=14, max=108, avg=50.91, stdev=12.19 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 35], 10.00th=[ 37], 20.00th=[ 40], | 30.00th=[ 43], 40.00th=[ 47], 50.00th=[ 51], 60.00th=[ 53], | 70.00th=[ 57], 80.00th=[ 62], 90.00th=[ 68], 95.00th=[ 72], | 99.00th=[ 84], 99.50th=[ 92], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 109] bw ( KiB/s): min= 944, max= 1664, per=25.02%, avg=1250.00, stdev=204.14, samples=16 iops : min= 236, max= 416, avg=312.44, stdev=51.03, samples=16 lat (msec) : 20=0.35%, 50=49.88%, 100=49.65%, 250=0.12% cpu : usr=0.54%, sys=4.94%, ctx=2528, 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=4996KiB/s (5116kB/s), 1249KiB/s-1253KiB/s (1279kB/s-1283kB/s), io=40.0MiB (41.9MB), run=8173-8198msec 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=183941: Wed Sep 2 11:53:57 2026 read: IOPS=144, BW=579KiB/s (593kB/s)(5048KiB/8722msec) slat (usec): min=70, max=9897, avg=3509.21, stdev=1206.79 clat (msec): min=5, max=119, avg=52.18, stdev=11.72 lat (msec): min=7, max=123, avg=55.70, stdev=12.10 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 37], 10.00th=[ 40], 20.00th=[ 44], | 30.00th=[ 46], 40.00th=[ 50], 50.00th=[ 52], 60.00th=[ 54], | 70.00th=[ 57], 80.00th=[ 61], 90.00th=[ 66], 95.00th=[ 72], | 99.00th=[ 84], 99.50th=[ 110], 99.90th=[ 117], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 472, max= 670, per=25.28%, avg=579.82, stdev=62.09, samples=17 iops : min= 118, max= 167, avg=144.88, stdev=15.50, samples=17 write: IOPS=148, BW=595KiB/s (610kB/s)(5192KiB/8722msec); 0 zone resets slat (usec): min=58, max=2142, avg=194.56, stdev=138.70 clat (msec): min=31, max=108, avg=52.78, stdev= 9.96 lat (msec): min=31, max=108, avg=52.98, stdev= 9.97 clat percentiles (msec): | 1.00th=[ 37], 5.00th=[ 41], 10.00th=[ 43], 20.00th=[ 45], | 30.00th=[ 47], 40.00th=[ 50], 50.00th=[ 52], 60.00th=[ 54], | 70.00th=[ 57], 80.00th=[ 61], 90.00th=[ 65], 95.00th=[ 71], | 99.00th=[ 87], 99.50th=[ 101], 99.90th=[ 105], 99.95th=[ 109], | 99.99th=[ 109] bw ( KiB/s): min= 432, max= 704, per=25.03%, avg=597.71, stdev=76.32, samples=17 iops : min= 108, max= 176, avg=149.35, stdev=19.04, samples=17 lat (msec) : 10=0.08%, 20=0.12%, 50=43.40%, 100=55.86%, 250=0.55% cpu : usr=0.50%, sys=4.92%, ctx=4679, 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=183942: Wed Sep 2 11:53:57 2026 read: IOPS=143, BW=573KiB/s (587kB/s)(4976KiB/8679msec) slat (usec): min=59, max=13113, avg=3552.55, stdev=1303.59 clat (msec): min=13, max=100, avg=51.75, stdev=10.79 lat (msec): min=13, max=102, avg=55.30, stdev=11.18 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 37], 10.00th=[ 40], 20.00th=[ 44], | 30.00th=[ 46], 40.00th=[ 49], 50.00th=[ 51], 60.00th=[ 54], | 70.00th=[ 57], 80.00th=[ 61], 90.00th=[ 66], 95.00th=[ 70], | 99.00th=[ 83], 99.50th=[ 92], 99.90th=[ 97], 99.95th=[ 101], | 99.99th=[ 101] bw ( KiB/s): min= 440, max= 662, per=24.93%, avg=571.88, stdev=63.09, samples=17 iops : min= 110, max= 165, avg=142.88, stdev=15.75, samples=17 write: IOPS=151, BW=607KiB/s (621kB/s)(5264KiB/8679msec); 0 zone resets slat (usec): min=54, max=2226, avg=200.36, stdev=168.08 clat (usec): min=13016, max=96318, avg=52858.05, stdev=10259.74 lat (usec): min=13105, max=96758, avg=53059.86, stdev=10264.39 clat percentiles (usec): | 1.00th=[29754], 5.00th=[39060], 10.00th=[41681], 20.00th=[44827], | 30.00th=[47449], 40.00th=[50070], 50.00th=[52167], 60.00th=[54264], | 70.00th=[56886], 80.00th=[60556], 90.00th=[65799], 95.00th=[69731], | 99.00th=[83362], 99.50th=[88605], 99.90th=[91751], 99.95th=[95945], | 99.99th=[95945] bw ( KiB/s): min= 416, max= 784, per=25.48%, avg=608.35, stdev=87.42, samples=17 iops : min= 104, max= 196, avg=152.00, stdev=21.81, samples=17 lat (msec) : 20=0.82%, 50=42.77%, 100=56.37%, 250=0.04% cpu : usr=0.48%, sys=4.99%, ctx=4656, 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=183943: Wed Sep 2 11:53:57 2026 read: IOPS=142, BW=572KiB/s (585kB/s)(4984KiB/8720msec) slat (usec): min=91, max=12064, avg=3485.31, stdev=1237.50 clat (msec): min=13, max=117, avg=51.80, stdev=10.90 lat (msec): min=14, max=120, avg=55.29, stdev=11.26 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 37], 10.00th=[ 40], 20.00th=[ 43], | 30.00th=[ 46], 40.00th=[ 49], 50.00th=[ 51], 60.00th=[ 54], | 70.00th=[ 57], 80.00th=[ 61], 90.00th=[ 67], 95.00th=[ 72], | 99.00th=[ 85], 99.50th=[ 86], 99.90th=[ 99], 99.95th=[ 118], | 99.99th=[ 118] bw ( KiB/s): min= 464, max= 728, per=25.07%, avg=575.00, stdev=84.92, samples=17 iops : min= 116, max= 182, avg=143.65, stdev=21.24, samples=17 write: IOPS=150, BW=603KiB/s (617kB/s)(5256KiB/8720msec); 0 zone resets slat (usec): min=57, max=1277, avg=194.52, stdev=124.76 clat (msec): min=13, max=110, avg=53.17, stdev=10.33 lat (msec): min=13, max=110, avg=53.36, stdev=10.34 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 41], 10.00th=[ 43], 20.00th=[ 45], | 30.00th=[ 47], 40.00th=[ 50], 50.00th=[ 52], 60.00th=[ 54], | 70.00th=[ 57], 80.00th=[ 61], 90.00th=[ 67], 95.00th=[ 72], | 99.00th=[ 91], 99.50th=[ 96], 99.90th=[ 107], 99.95th=[ 111], | 99.99th=[ 111] bw ( KiB/s): min= 464, max= 704, per=25.25%, avg=603.00, stdev=74.91, samples=17 iops : min= 116, max= 176, avg=150.65, stdev=18.71, samples=17 lat (msec) : 20=0.27%, 50=44.84%, 100=54.73%, 250=0.16% cpu : usr=0.44%, sys=5.01%, ctx=4634, 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=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=183944: Wed Sep 2 11:53:57 2026 read: IOPS=144, BW=578KiB/s (592kB/s)(5060KiB/8748msec) slat (usec): min=122, max=13079, avg=3516.94, stdev=1264.49 clat (usec): min=12672, max=92291, avg=51940.50, stdev=10515.97 lat (msec): min=16, max=102, avg=55.46, stdev=10.93 clat percentiles (usec): | 1.00th=[31851], 5.00th=[37487], 10.00th=[40109], 20.00th=[43254], | 30.00th=[45876], 40.00th=[48497], 50.00th=[50594], 60.00th=[53216], | 70.00th=[56361], 80.00th=[60031], 90.00th=[66323], 95.00th=[70779], | 99.00th=[83362], 99.50th=[85459], 99.90th=[90702], 99.95th=[92799], | 99.99th=[92799] bw ( KiB/s): min= 472, max= 712, per=25.20%, avg=578.18, stdev=67.52, samples=17 iops : min= 118, max= 178, avg=144.47, stdev=16.92, samples=17 write: IOPS=148, BW=592KiB/s (606kB/s)(5180KiB/8748msec); 0 zone resets slat (usec): min=56, max=2873, avg=201.58, stdev=177.94 clat (usec): min=20398, max=94422, avg=53136.93, stdev=9740.41 lat (usec): min=20553, max=94528, avg=53340.36, stdev=9740.77 clat percentiles (usec): | 1.00th=[34341], 5.00th=[40109], 10.00th=[42206], 20.00th=[45351], | 30.00th=[47973], 40.00th=[50070], 50.00th=[52167], 60.00th=[53740], | 70.00th=[56361], 80.00th=[60556], 90.00th=[65799], 95.00th=[70779], | 99.00th=[84411], 99.50th=[87557], 99.90th=[90702], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 440, max= 742, per=24.74%, avg=590.88, stdev=79.88, samples=17 iops : min= 110, max= 185, avg=147.65, stdev=19.91, samples=17 lat (msec) : 20=0.04%, 50=43.44%, 100=56.52% cpu : usr=0.40%, sys=5.05%, ctx=4620, 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=2294KiB/s (2349kB/s), 572KiB/s-579KiB/s (585kB/s-593kB/s), io=19.6MiB (20.5MB), run=8679-8748msec WRITE: bw=2388KiB/s (2446kB/s), 592KiB/s-607KiB/s (606kB/s-621kB/s), io=20.4MiB (21.4MB), run=8679-8748msec 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=183948: Wed Sep 2 11:54:01 2026 read: IOPS=9, BW=367MiB/s (385MB/s)(40.0MiB/109msec) slat (nsec): min=10697k, max=10697k, avg=10697219.00, stdev= 0.00 clat (nsec): min=92651k, max=92651k, avg=92650609.00, stdev= 0.00 lat (nsec): min=103353k, max=103353k, avg=103352546.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[92799], 5.00th=[92799], 10.00th=[92799], 20.00th=[92799], | 30.00th=[92799], 40.00th=[92799], 50.00th=[92799], 60.00th=[92799], | 70.00th=[92799], 80.00th=[92799], 90.00th=[92799], 95.00th=[92799], | 99.00th=[92799], 99.50th=[92799], 99.90th=[92799], 99.95th=[92799], | 99.99th=[92799] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=8.33%, ctx=9, 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=367MiB/s (385MB/s), 367MiB/s-367MiB/s (385MB/s-385MB/s), io=40.0MiB (41.9MB), run=109-109msec 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