== sanity test 398c: run fio to test AIO ================= 11:47:05 (1788364025) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.184025 s, 228 MB/s osc.lustre-OST0000-osc-ffff95fdf9436000.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=181983: Wed Sep 2 11:47:21 2026 write: IOPS=218, BW=874KiB/s (895kB/s)(10.0MiB/11713msec); 0 zone resets slat (usec): min=35, max=3844, avg=200.71, stdev=215.19 clat (msec): min=9, max=175, avg=72.91, stdev=21.38 lat (msec): min=9, max=175, avg=73.11, stdev=21.38 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 44], 10.00th=[ 51], 20.00th=[ 57], | 30.00th=[ 62], 40.00th=[ 67], 50.00th=[ 70], 60.00th=[ 75], | 70.00th=[ 81], 80.00th=[ 87], 90.00th=[ 100], 95.00th=[ 110], | 99.00th=[ 144], 99.50th=[ 155], 99.90th=[ 176], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 584, max= 1160, per=25.18%, avg=872.74, stdev=164.66, samples=23 iops : min= 146, max= 290, avg=218.09, stdev=41.14, samples=23 lat (msec) : 10=0.04%, 20=0.62%, 50=9.61%, 100=80.04%, 250=9.69% cpu : usr=0.38%, sys=2.95%, ctx=2581, 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=181984: Wed Sep 2 11:47:21 2026 write: IOPS=217, BW=869KiB/s (890kB/s)(10.0MiB/11784msec); 0 zone resets slat (usec): min=37, max=20621, avg=230.66, stdev=458.66 clat (msec): min=7, max=158, avg=73.05, stdev=21.07 lat (msec): min=7, max=158, avg=73.28, stdev=21.06 clat percentiles (msec): | 1.00th=[ 30], 5.00th=[ 44], 10.00th=[ 51], 20.00th=[ 57], | 30.00th=[ 63], 40.00th=[ 67], 50.00th=[ 71], 60.00th=[ 77], | 70.00th=[ 81], 80.00th=[ 87], 90.00th=[ 100], 95.00th=[ 111], | 99.00th=[ 142], 99.50th=[ 153], 99.90th=[ 157], 99.95th=[ 157], | 99.99th=[ 159] bw ( KiB/s): min= 568, max= 1192, per=25.13%, avg=871.09, stdev=160.98, samples=23 iops : min= 142, max= 298, avg=217.70, stdev=40.26, samples=23 lat (msec) : 10=0.08%, 20=0.59%, 50=9.02%, 100=80.74%, 250=9.57% cpu : usr=0.42%, sys=3.58%, ctx=2674, 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=181985: Wed Sep 2 11:47:21 2026 write: IOPS=216, BW=867KiB/s (888kB/s)(10.0MiB/11808msec); 0 zone resets slat (usec): min=36, max=4195, avg=200.43, stdev=194.45 clat (msec): min=10, max=151, avg=73.21, stdev=20.37 lat (msec): min=10, max=152, avg=73.41, stdev=20.37 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 46], 10.00th=[ 51], 20.00th=[ 58], | 30.00th=[ 62], 40.00th=[ 67], 50.00th=[ 71], 60.00th=[ 75], | 70.00th=[ 82], 80.00th=[ 87], 90.00th=[ 99], 95.00th=[ 115], | 99.00th=[ 140], 99.50th=[ 146], 99.90th=[ 148], 99.95th=[ 150], | 99.99th=[ 153] bw ( KiB/s): min= 544, max= 1208, per=25.02%, avg=867.04, stdev=164.66, samples=23 iops : min= 136, max= 302, avg=216.65, stdev=41.15, samples=23 lat (msec) : 20=0.04%, 50=10.43%, 100=80.35%, 250=9.18% cpu : usr=0.36%, sys=3.20%, ctx=2675, 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=181986: Wed Sep 2 11:47:21 2026 write: IOPS=216, BW=867KiB/s (887kB/s)(10.0MiB/11815msec); 0 zone resets slat (usec): min=38, max=3891, avg=192.42, stdev=202.74 clat (msec): min=21, max=148, avg=73.25, stdev=19.99 lat (msec): min=22, max=149, avg=73.44, stdev=20.00 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 47], 10.00th=[ 50], 20.00th=[ 57], | 30.00th=[ 63], 40.00th=[ 68], 50.00th=[ 72], 60.00th=[ 77], | 70.00th=[ 82], 80.00th=[ 87], 90.00th=[ 99], 95.00th=[ 111], | 99.00th=[ 138], 99.50th=[ 144], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 544, max= 1208, per=24.96%, avg=865.17, stdev=158.53, samples=23 iops : min= 136, max= 302, avg=216.17, stdev=39.60, samples=23 lat (msec) : 50=10.20%, 100=81.25%, 250=8.55% cpu : usr=0.41%, sys=2.80%, ctx=2638, 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=3467KiB/s (3550kB/s), 867KiB/s-874KiB/s (887kB/s-895kB/s), io=40.0MiB (41.9MB), run=11713-11815msec 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=181997: Wed Sep 2 11:47:34 2026 read: IOPS=137, BW=549KiB/s (562kB/s)(5048KiB/9196msec) slat (usec): min=40, max=15891, avg=3877.70, stdev=1730.70 clat (msec): min=5, max=140, avg=54.38, stdev=13.31 lat (msec): min=11, max=142, avg=58.26, stdev=13.78 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 36], 10.00th=[ 40], 20.00th=[ 45], | 30.00th=[ 47], 40.00th=[ 51], 50.00th=[ 54], 60.00th=[ 56], | 70.00th=[ 59], 80.00th=[ 64], 90.00th=[ 71], 95.00th=[ 77], | 99.00th=[ 94], 99.50th=[ 108], 99.90th=[ 120], 99.95th=[ 140], | 99.99th=[ 140] bw ( KiB/s): min= 420, max= 693, per=25.43%, avg=550.50, stdev=73.64, samples=18 iops : min= 105, max= 173, avg=137.50, stdev=18.44, samples=18 write: IOPS=141, BW=565KiB/s (578kB/s)(5192KiB/9196msec); 0 zone resets slat (usec): min=36, max=3686, avg=197.55, stdev=188.59 clat (msec): min=21, max=118, avg=56.26, stdev=12.43 lat (msec): min=21, max=118, avg=56.46, stdev=12.44 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 40], 10.00th=[ 43], 20.00th=[ 46], | 30.00th=[ 50], 40.00th=[ 53], 50.00th=[ 55], 60.00th=[ 58], | 70.00th=[ 61], 80.00th=[ 66], 90.00th=[ 73], 95.00th=[ 82], | 99.00th=[ 95], 99.50th=[ 101], 99.90th=[ 112], 99.95th=[ 120], | 99.99th=[ 120] bw ( KiB/s): min= 414, max= 720, per=25.18%, avg=567.61, stdev=80.39, samples=18 iops : min= 103, max= 180, avg=141.72, stdev=20.30, samples=18 lat (msec) : 10=0.08%, 20=0.04%, 50=35.98%, 100=63.24%, 250=0.66% cpu : usr=0.55%, sys=4.69%, ctx=4349, 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=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=181998: Wed Sep 2 11:47:34 2026 read: IOPS=134, BW=538KiB/s (550kB/s)(4976KiB/9256msec) slat (usec): min=181, max=15838, avg=4017.39, stdev=1818.81 clat (msec): min=6, max=135, avg=54.84, stdev=12.80 lat (msec): min=10, max=140, avg=58.86, stdev=13.34 clat percentiles (msec): | 1.00th=[ 32], 5.00th=[ 37], 10.00th=[ 40], 20.00th=[ 45], | 30.00th=[ 48], 40.00th=[ 51], 50.00th=[ 54], 60.00th=[ 57], | 70.00th=[ 61], 80.00th=[ 65], 90.00th=[ 71], 95.00th=[ 78], | 99.00th=[ 91], 99.50th=[ 97], 99.90th=[ 124], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 354, max= 680, per=24.97%, avg=540.61, stdev=76.31, samples=18 iops : min= 88, max= 170, avg=135.00, stdev=19.18, samples=18 write: IOPS=142, BW=569KiB/s (582kB/s)(5264KiB/9256msec); 0 zone resets slat (usec): min=58, max=3959, avg=205.81, stdev=211.71 clat (msec): min=28, max=135, avg=56.15, stdev=11.92 lat (msec): min=28, max=135, avg=56.35, stdev=11.93 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 40], 10.00th=[ 43], 20.00th=[ 47], | 30.00th=[ 50], 40.00th=[ 53], 50.00th=[ 55], 60.00th=[ 58], | 70.00th=[ 61], 80.00th=[ 65], 90.00th=[ 71], 95.00th=[ 79], | 99.00th=[ 92], 99.50th=[ 103], 99.90th=[ 131], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 419, max= 704, per=25.43%, avg=573.17, stdev=85.29, samples=18 iops : min= 104, max= 176, avg=143.11, stdev=21.51, samples=18 lat (msec) : 10=0.08%, 50=34.69%, 100=64.73%, 250=0.51% cpu : usr=0.53%, sys=4.83%, ctx=4393, 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=181999: Wed Sep 2 11:47:34 2026 read: IOPS=134, BW=538KiB/s (551kB/s)(4984KiB/9263msec) slat (usec): min=1230, max=16487, avg=3918.01, stdev=1810.75 clat (msec): min=27, max=114, avg=54.36, stdev=12.18 lat (msec): min=31, max=120, avg=58.28, stdev=12.75 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 37], 10.00th=[ 41], 20.00th=[ 45], | 30.00th=[ 48], 40.00th=[ 51], 50.00th=[ 53], 60.00th=[ 56], | 70.00th=[ 60], 80.00th=[ 64], 90.00th=[ 71], 95.00th=[ 77], | 99.00th=[ 90], 99.50th=[ 96], 99.90th=[ 111], 99.95th=[ 114], | 99.99th=[ 114] bw ( KiB/s): min= 309, max= 680, per=25.12%, avg=543.94, stdev=94.70, samples=18 iops : min= 77, max= 170, avg=135.83, stdev=23.81, samples=18 write: IOPS=141, BW=567KiB/s (581kB/s)(5256KiB/9263msec); 0 zone resets slat (usec): min=40, max=3345, avg=203.17, stdev=178.04 clat (msec): min=31, max=136, avg=56.39, stdev=12.30 lat (msec): min=31, max=136, avg=56.60, stdev=12.30 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 41], 10.00th=[ 44], 20.00th=[ 47], | 30.00th=[ 50], 40.00th=[ 52], 50.00th=[ 55], 60.00th=[ 58], | 70.00th=[ 61], 80.00th=[ 66], 90.00th=[ 73], 95.00th=[ 79], | 99.00th=[ 92], 99.50th=[ 101], 99.90th=[ 136], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 393, max= 756, per=25.32%, avg=570.78, stdev=88.49, samples=18 iops : min= 98, max= 189, avg=142.56, stdev=22.22, samples=18 lat (msec) : 50=36.45%, 100=63.16%, 250=0.39% cpu : usr=0.44%, sys=4.90%, ctx=4414, 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=182000: Wed Sep 2 11:47:34 2026 read: IOPS=136, BW=546KiB/s (559kB/s)(5060KiB/9267msec) slat (usec): min=1236, max=17806, avg=3983.20, stdev=1761.31 clat (msec): min=27, max=109, avg=54.63, stdev=11.58 lat (msec): min=31, max=118, avg=58.62, stdev=12.15 clat percentiles (msec): | 1.00th=[ 34], 5.00th=[ 38], 10.00th=[ 41], 20.00th=[ 45], | 30.00th=[ 48], 40.00th=[ 51], 50.00th=[ 54], 60.00th=[ 56], | 70.00th=[ 61], 80.00th=[ 64], 90.00th=[ 70], 95.00th=[ 75], | 99.00th=[ 89], 99.50th=[ 93], 99.90th=[ 97], 99.95th=[ 110], | 99.99th=[ 110] bw ( KiB/s): min= 348, max= 696, per=25.39%, avg=549.61, stdev=92.72, samples=18 iops : min= 87, max= 174, avg=137.28, stdev=23.21, samples=18 write: IOPS=139, BW=559KiB/s (572kB/s)(5180KiB/9267msec); 0 zone resets slat (usec): min=54, max=2817, avg=190.06, stdev=150.54 clat (msec): min=31, max=103, avg=56.24, stdev=11.63 lat (msec): min=31, max=103, avg=56.43, stdev=11.64 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 41], 10.00th=[ 44], 20.00th=[ 47], | 30.00th=[ 50], 40.00th=[ 53], 50.00th=[ 55], 60.00th=[ 58], | 70.00th=[ 62], 80.00th=[ 66], 90.00th=[ 73], 95.00th=[ 79], | 99.00th=[ 93], 99.50th=[ 97], 99.90th=[ 105], 99.95th=[ 105], | 99.99th=[ 105] bw ( KiB/s): min= 381, max= 685, per=24.86%, avg=560.39, stdev=77.08, samples=18 iops : min= 95, max= 171, avg=139.94, stdev=19.41, samples=18 lat (msec) : 50=34.96%, 100=64.88%, 250=0.16% cpu : usr=0.55%, sys=4.78%, ctx=4422, 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=2166KiB/s (2218kB/s), 538KiB/s-549KiB/s (550kB/s-562kB/s), io=19.6MiB (20.5MB), run=9196-9267msec WRITE: bw=2254KiB/s (2309kB/s), 559KiB/s-569KiB/s (572kB/s-582kB/s), io=20.4MiB (21.4MB), run=9196-9267msec 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=182005: Wed Sep 2 11:47:38 2026 read: IOPS=5, BW=238MiB/s (250MB/s)(40.0MiB/168msec) slat (nsec): min=14537k, max=14537k, avg=14537131.00, stdev= 0.00 clat (nsec): min=146111k, max=146111k, avg=146110936.00, stdev= 0.00 lat (nsec): min=160652k, max=160652k, avg=160652465.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 146], 10.00th=[ 146], 20.00th=[ 146], | 30.00th=[ 146], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 146], | 70.00th=[ 146], 80.00th=[ 146], 90.00th=[ 146], 95.00th=[ 146], | 99.00th=[ 146], 99.50th=[ 146], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.19%, ctx=14, 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=238MiB/s (250MB/s), 238MiB/s-238MiB/s (250MB/s-250MB/s), io=40.0MiB (41.9MB), run=168-168msec 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