== sanity test 398c: run fio to test AIO ================= 05:45:41 (1787305541) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.362993 s, 116 MB/s osc.lustre-OST0000-osc-ffff8b0172095000.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=179525: Fri Aug 21 05:46:13 2026 write: IOPS=105, BW=423KiB/s (434kB/s)(10.0MiB/24180msec); 0 zone resets slat (usec): min=29, max=9682, avg=223.14, stdev=618.83 clat (msec): min=18, max=286, avg=150.62, stdev=39.77 lat (msec): min=19, max=286, avg=150.85, stdev=39.77 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 97], 10.00th=[ 104], 20.00th=[ 112], | 30.00th=[ 128], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 207], 95.00th=[ 224], | 99.00th=[ 255], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 245, max= 638, per=25.04%, avg=423.21, stdev=87.16, samples=47 iops : min= 61, max= 159, avg=105.38, stdev=21.77, samples=47 lat (msec) : 20=0.04%, 50=0.20%, 100=6.72%, 250=91.33%, 500=1.72% cpu : usr=0.24%, sys=1.16%, ctx=2598, 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=179526: Fri Aug 21 05:46:13 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24224msec); 0 zone resets slat (usec): min=28, max=27304, avg=228.58, stdev=865.36 clat (msec): min=34, max=307, avg=150.56, stdev=38.97 lat (msec): min=34, max=307, avg=150.79, stdev=38.99 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 97], 10.00th=[ 104], 20.00th=[ 115], | 30.00th=[ 128], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 207], 95.00th=[ 226], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 309] bw ( KiB/s): min= 252, max= 638, per=24.98%, avg=422.15, stdev=89.85, samples=47 iops : min= 63, max= 159, avg=105.13, stdev=22.46, samples=47 lat (msec) : 50=0.04%, 100=7.07%, 250=91.33%, 500=1.56% cpu : usr=0.23%, sys=1.25%, ctx=2748, 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=179527: Fri Aug 21 05:46:13 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24220msec); 0 zone resets slat (usec): min=24, max=11132, avg=236.23, stdev=738.43 clat (msec): min=22, max=286, avg=150.66, stdev=39.62 lat (msec): min=22, max=286, avg=150.89, stdev=39.65 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 97], 10.00th=[ 106], 20.00th=[ 116], | 30.00th=[ 127], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 153], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 209], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 275], 99.90th=[ 284], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 245, max= 638, per=24.88%, avg=420.54, stdev=89.01, samples=48 iops : min= 61, max= 159, avg=104.73, stdev=22.27, samples=48 lat (msec) : 50=0.16%, 100=7.30%, 250=90.74%, 500=1.80% cpu : usr=0.24%, sys=1.40%, ctx=2945, 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=179528: Fri Aug 21 05:46:13 2026 write: IOPS=105, BW=423KiB/s (433kB/s)(10.0MiB/24211msec); 0 zone resets slat (usec): min=21, max=10787, avg=209.54, stdev=568.97 clat (msec): min=18, max=344, avg=150.88, stdev=41.03 lat (msec): min=18, max=344, avg=151.09, stdev=41.03 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 99], 10.00th=[ 104], 20.00th=[ 113], | 30.00th=[ 127], 40.00th=[ 138], 50.00th=[ 148], 60.00th=[ 155], | 70.00th=[ 167], 80.00th=[ 180], 90.00th=[ 207], 95.00th=[ 226], | 99.00th=[ 271], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 245, max= 633, per=25.00%, avg=422.49, stdev=87.47, samples=47 iops : min= 61, max= 158, avg=105.21, stdev=21.84, samples=47 lat (msec) : 20=0.04%, 50=0.12%, 100=6.25%, 250=91.60%, 500=1.99% cpu : usr=0.22%, sys=1.19%, ctx=2712, 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=1691KiB/s (1731kB/s), 423KiB/s-423KiB/s (433kB/s-434kB/s), io=40.0MiB (41.9MB), run=24180-24224msec 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=179541: Fri Aug 21 05:46:46 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(5048KiB/24428msec) slat (usec): min=2524, max=73151, avg=10837.35, stdev=6115.58 clat (msec): min=21, max=330, avg=143.72, stdev=42.21 lat (msec): min=27, max=354, avg=154.57, stdev=44.00 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 86], 10.00th=[ 95], 20.00th=[ 108], | 30.00th=[ 120], 40.00th=[ 129], 50.00th=[ 138], 60.00th=[ 148], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 201], 95.00th=[ 218], | 99.00th=[ 266], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 127, max= 320, per=24.99%, avg=205.19, stdev=51.31, samples=48 iops : min= 31, max= 80, avg=50.88, stdev=12.86, samples=48 write: IOPS=53, BW=213KiB/s (218kB/s)(5192KiB/24428msec); 0 zone resets slat (usec): min=30, max=13129, avg=248.40, stdev=628.40 clat (msec): min=27, max=338, avg=148.71, stdev=40.13 lat (msec): min=27, max=338, avg=148.96, stdev=40.14 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 93], 10.00th=[ 102], 20.00th=[ 115], | 30.00th=[ 126], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 262], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 102, max= 327, per=24.77%, avg=211.77, stdev=51.11, samples=48 iops : min= 25, max= 81, avg=52.50, stdev=12.78, samples=48 lat (msec) : 50=0.23%, 100=10.43%, 250=87.54%, 500=1.80% cpu : usr=0.26%, sys=2.11%, ctx=4529, 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=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=179542: Fri Aug 21 05:46:46 2026 read: IOPS=51, BW=204KiB/s (209kB/s)(4976KiB/24343msec) slat (usec): min=40, max=63629, avg=10575.97, stdev=6049.59 clat (msec): min=59, max=389, avg=144.01, stdev=41.97 lat (msec): min=59, max=405, avg=154.60, stdev=44.10 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 85], 10.00th=[ 96], 20.00th=[ 109], | 30.00th=[ 120], 40.00th=[ 130], 50.00th=[ 138], 60.00th=[ 150], | 70.00th=[ 163], 80.00th=[ 176], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 275], 99.50th=[ 288], 99.90th=[ 351], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 119, max= 357, per=24.83%, avg=203.83, stdev=55.49, samples=48 iops : min= 29, max= 89, avg=50.52, stdev=13.93, samples=48 write: IOPS=54, BW=216KiB/s (221kB/s)(5264KiB/24343msec); 0 zone resets slat (usec): min=29, max=11125, avg=262.34, stdev=700.95 clat (msec): min=72, max=347, avg=148.30, stdev=41.58 lat (msec): min=72, max=347, avg=148.57, stdev=41.61 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 91], 10.00th=[ 101], 20.00th=[ 114], | 30.00th=[ 124], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 155], | 70.00th=[ 167], 80.00th=[ 182], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 288], 99.50th=[ 317], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 118, max= 383, per=25.28%, avg=216.15, stdev=54.62, samples=48 iops : min= 29, max= 95, avg=53.63, stdev=13.65, samples=48 lat (msec) : 100=11.60%, 250=86.33%, 500=2.07% cpu : usr=0.36%, sys=2.11%, ctx=4674, 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=179543: Fri Aug 21 05:46:46 2026 read: IOPS=51, BW=205KiB/s (210kB/s)(4984KiB/24285msec) slat (usec): min=36, max=70088, avg=10551.02, stdev=6135.52 clat (msec): min=17, max=313, avg=143.21, stdev=40.80 lat (msec): min=17, max=320, avg=153.77, stdev=43.10 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 86], 10.00th=[ 95], 20.00th=[ 110], | 30.00th=[ 121], 40.00th=[ 130], 50.00th=[ 140], 60.00th=[ 150], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 197], 95.00th=[ 211], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 87, max= 327, per=24.97%, avg=205.04, stdev=53.51, samples=48 iops : min= 21, max= 81, avg=50.81, stdev=13.41, samples=48 write: IOPS=54, BW=216KiB/s (222kB/s)(5256KiB/24285msec); 0 zone resets slat (usec): min=32, max=16316, avg=312.28, stdev=921.13 clat (msec): min=36, max=328, avg=149.22, stdev=42.16 lat (msec): min=38, max=329, avg=149.54, stdev=42.20 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 88], 10.00th=[ 100], 20.00th=[ 113], | 30.00th=[ 125], 40.00th=[ 134], 50.00th=[ 146], 60.00th=[ 159], | 70.00th=[ 167], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 222], | 99.00th=[ 266], 99.50th=[ 305], 99.90th=[ 330], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 120, max= 359, per=25.14%, avg=214.98, stdev=50.95, samples=48 iops : min= 30, max= 89, avg=53.31, stdev=12.71, samples=48 lat (msec) : 20=0.12%, 50=0.43%, 100=10.90%, 250=86.91%, 500=1.64% cpu : usr=0.33%, sys=2.09%, ctx=4333, 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=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=179544: Fri Aug 21 05:46:46 2026 read: IOPS=51, BW=207KiB/s (212kB/s)(5060KiB/24425msec) slat (usec): min=2572, max=54425, avg=11026.99, stdev=5976.40 clat (msec): min=62, max=342, avg=145.67, stdev=41.06 lat (msec): min=67, max=349, avg=156.71, stdev=43.14 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 88], 10.00th=[ 97], 20.00th=[ 112], | 30.00th=[ 122], 40.00th=[ 131], 50.00th=[ 140], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 199], 95.00th=[ 218], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 326], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 119, max= 327, per=25.17%, avg=206.67, stdev=47.00, samples=48 iops : min= 29, max= 81, avg=51.23, stdev=11.76, samples=48 write: IOPS=53, BW=212KiB/s (217kB/s)(5180KiB/24425msec); 0 zone resets slat (usec): min=33, max=11832, avg=240.48, stdev=571.03 clat (msec): min=63, max=333, avg=146.93, stdev=39.88 lat (msec): min=63, max=333, avg=147.17, stdev=39.87 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 91], 10.00th=[ 97], 20.00th=[ 112], | 30.00th=[ 124], 40.00th=[ 133], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 165], 80.00th=[ 178], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 96, max= 336, per=24.67%, avg=210.90, stdev=61.16, samples=48 iops : min= 24, max= 84, avg=52.29, stdev=15.31, samples=48 lat (msec) : 100=11.72%, 250=86.72%, 500=1.56% cpu : usr=0.29%, sys=2.19%, ctx=4569, 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=822KiB/s (841kB/s), 204KiB/s-207KiB/s (209kB/s-212kB/s), io=19.6MiB (20.5MB), run=24285-24428msec WRITE: bw=855KiB/s (876kB/s), 212KiB/s-216KiB/s (217kB/s-222kB/s), io=20.4MiB (21.4MB), run=24285-24428msec 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=179552: Fri Aug 21 05:46:55 2026 read: IOPS=2, BW=87.3MiB/s (91.6MB/s)(40.0MiB/458msec) slat (nsec): min=69890k, max=69890k, avg=69889641.00, stdev= 0.00 clat (nsec): min=367142k, max=367142k, avg=367142308.00, stdev= 0.00 lat (nsec): min=437039k, max=437039k, avg=437038744.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 368], 10.00th=[ 368], 20.00th=[ 368], | 30.00th=[ 368], 40.00th=[ 368], 50.00th=[ 368], 60.00th=[ 368], | 70.00th=[ 368], 80.00th=[ 368], 90.00th=[ 368], 95.00th=[ 368], | 99.00th=[ 368], 99.50th=[ 368], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.63%, ctx=5, 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=87.3MiB/s (91.6MB/s), 87.3MiB/s-87.3MiB/s (91.6MB/s-91.6MB/s), io=40.0MiB (41.9MB), run=458-458msec 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