== sanity test 398c: run fio to test AIO ================= 17:33:49 (1788816829) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.258388 s, 162 MB/s osc.lustre-OST0000-osc-ffff901578471000.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=145407: Mon Sep 7 17:35:29 2026 write: IOPS=27, BW=109KiB/s (111kB/s)(10.0MiB/94251msec); 0 zone resets slat (usec): min=22, max=6804, avg=190.59, stdev=376.32 clat (msec): min=55, max=1068, avg=588.38, stdev=154.63 lat (msec): min=55, max=1068, avg=588.57, stdev=154.64 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 292], 10.00th=[ 414], 20.00th=[ 481], | 30.00th=[ 523], 40.00th=[ 558], 50.00th=[ 592], 60.00th=[ 625], | 70.00th=[ 667], 80.00th=[ 709], 90.00th=[ 776], 95.00th=[ 827], | 99.00th=[ 936], 99.50th=[ 978], 99.90th=[ 1036], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 39, max= 312, per=24.89%, avg=108.02, stdev=37.23, samples=187 iops : min= 9, max= 78, avg=26.63, stdev= 9.38, samples=187 lat (msec) : 100=0.43%, 250=4.14%, 500=19.73%, 750=62.81%, 1000=12.62% lat (msec) : 2000=0.27% cpu : usr=0.07%, sys=0.34%, ctx=2396, 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=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=145408: Mon Sep 7 17:35:29 2026 write: IOPS=27, BW=109KiB/s (111kB/s)(10.0MiB/94292msec); 0 zone resets slat (usec): min=26, max=7682, avg=189.04, stdev=416.35 clat (msec): min=121, max=1008, avg=588.59, stdev=150.58 lat (msec): min=121, max=1008, avg=588.79, stdev=150.60 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 317], 10.00th=[ 418], 20.00th=[ 485], | 30.00th=[ 523], 40.00th=[ 558], 50.00th=[ 592], 60.00th=[ 625], | 70.00th=[ 667], 80.00th=[ 709], 90.00th=[ 776], 95.00th=[ 827], | 99.00th=[ 911], 99.50th=[ 953], 99.90th=[ 1003], 99.95th=[ 1003], | 99.99th=[ 1011] bw ( KiB/s): min= 32, max= 317, per=24.86%, avg=107.88, stdev=34.17, samples=187 iops : min= 8, max= 79, avg=26.59, stdev= 8.60, samples=187 lat (msec) : 250=4.10%, 500=19.18%, 750=63.83%, 1000=12.77%, 2000=0.12% cpu : usr=0.05%, sys=0.35%, ctx=2269, 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=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=145409: Mon Sep 7 17:35:29 2026 write: IOPS=27, BW=109KiB/s (111kB/s)(10.0MiB/94079msec); 0 zone resets slat (usec): min=22, max=10186, avg=190.31, stdev=391.94 clat (msec): min=81, max=1035, avg=587.64, stdev=155.50 lat (msec): min=82, max=1035, avg=587.83, stdev=155.53 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 257], 10.00th=[ 414], 20.00th=[ 485], | 30.00th=[ 523], 40.00th=[ 567], 50.00th=[ 600], 60.00th=[ 625], | 70.00th=[ 667], 80.00th=[ 709], 90.00th=[ 768], 95.00th=[ 818], | 99.00th=[ 927], 99.50th=[ 969], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1036] bw ( KiB/s): min= 24, max= 369, per=24.87%, avg=107.94, stdev=39.54, samples=187 iops : min= 6, max= 92, avg=26.60, stdev= 9.95, samples=187 lat (msec) : 100=0.62%, 250=4.26%, 500=18.75%, 750=63.16%, 1000=13.09% lat (msec) : 2000=0.12% cpu : usr=0.06%, sys=0.33%, ctx=2502, 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=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=145410: Mon Sep 7 17:35:29 2026 write: IOPS=27, BW=109KiB/s (111kB/s)(10.0MiB/94295msec); 0 zone resets slat (usec): min=22, max=12604, avg=193.51, stdev=444.17 clat (msec): min=56, max=1010, avg=588.55, stdev=149.13 lat (msec): min=59, max=1010, avg=588.75, stdev=149.14 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 305], 10.00th=[ 418], 20.00th=[ 485], | 30.00th=[ 518], 40.00th=[ 567], 50.00th=[ 592], 60.00th=[ 625], | 70.00th=[ 667], 80.00th=[ 709], 90.00th=[ 768], 95.00th=[ 818], | 99.00th=[ 927], 99.50th=[ 953], 99.90th=[ 995], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 31, max= 376, per=24.81%, avg=107.69, stdev=35.20, samples=187 iops : min= 7, max= 94, avg=26.54, stdev= 8.85, samples=187 lat (msec) : 100=0.04%, 250=3.87%, 500=20.51%, 750=63.40%, 1000=12.11% lat (msec) : 2000=0.08% cpu : usr=0.07%, sys=0.35%, ctx=2598, 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=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=434KiB/s (445kB/s), 109KiB/s-109KiB/s (111kB/s-111kB/s), io=40.0MiB (41.9MB), run=94079-94295msec 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=145433: Mon Sep 7 17:36:37 2026 read: IOPS=19, BW=79.3KiB/s (81.2kB/s)(5048KiB/63661msec) slat (msec): min=2, max=357, avg= 8.58, stdev=17.65 clat (msec): min=8, max=1293, avg=241.04, stdev=74.38 lat (msec): min=13, max=1419, avg=249.63, stdev=81.64 clat percentiles (msec): | 1.00th=[ 27], 5.00th=[ 150], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 215], 40.00th=[ 228], 50.00th=[ 241], 60.00th=[ 253], | 70.00th=[ 264], 80.00th=[ 279], 90.00th=[ 309], 95.00th=[ 330], | 99.00th=[ 384], 99.50th=[ 435], 99.90th=[ 1167], 99.95th=[ 1301], | 99.99th=[ 1301] bw ( KiB/s): min= 16, max= 143, per=24.86%, avg=78.30, stdev=26.23, samples=125 iops : min= 4, max= 35, avg=19.15, stdev= 6.58, samples=125 write: IOPS=20, BW=81.6KiB/s (83.5kB/s)(5192KiB/63661msec); 0 zone resets slat (usec): min=34, max=8935, avg=245.50, stdev=507.54 clat (msec): min=56, max=1819, avg=540.54, stdev=176.10 lat (msec): min=56, max=1819, avg=540.79, stdev=176.11 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 313], 10.00th=[ 359], 20.00th=[ 418], | 30.00th=[ 460], 40.00th=[ 502], 50.00th=[ 535], 60.00th=[ 575], | 70.00th=[ 600], 80.00th=[ 642], 90.00th=[ 701], 95.00th=[ 768], | 99.00th=[ 978], 99.50th=[ 1603], 99.90th=[ 1821], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 160, per=24.49%, avg=80.34, stdev=23.43, samples=125 iops : min= 1, max= 40, avg=19.66, stdev= 5.91, samples=125 lat (msec) : 10=0.04%, 20=0.23%, 50=0.47%, 100=0.70%, 250=28.52% lat (msec) : 500=39.26%, 750=27.58%, 1000=2.66%, 2000=0.55% cpu : usr=0.11%, sys=0.87%, ctx=5340, 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=145434: Mon Sep 7 17:36:37 2026 read: IOPS=19, BW=78.4KiB/s (80.3kB/s)(4976KiB/63459msec) slat (msec): min=2, max=230, avg= 7.96, stdev= 8.99 clat (msec): min=11, max=516, avg=242.30, stdev=56.20 lat (msec): min=15, max=529, avg=250.27, stdev=56.59 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 157], 10.00th=[ 180], 20.00th=[ 201], | 30.00th=[ 218], 40.00th=[ 230], 50.00th=[ 241], 60.00th=[ 253], | 70.00th=[ 268], 80.00th=[ 284], 90.00th=[ 313], 95.00th=[ 330], | 99.00th=[ 376], 99.50th=[ 472], 99.90th=[ 510], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 8, max= 159, per=24.71%, avg=77.83, stdev=29.02, samples=126 iops : min= 2, max= 39, avg=19.03, stdev= 7.30, samples=126 write: IOPS=20, BW=82.0KiB/s (84.9kB/s)(5264KiB/63459msec); 0 zone resets slat (usec): min=32, max=12483, avg=220.55, stdev=479.31 clat (msec): min=149, max=977, avg=533.47, stdev=134.13 lat (msec): min=149, max=978, avg=533.69, stdev=134.11 clat percentiles (msec): | 1.00th=[ 243], 5.00th=[ 338], 10.00th=[ 372], 20.00th=[ 422], | 30.00th=[ 460], 40.00th=[ 498], 50.00th=[ 527], 60.00th=[ 558], | 70.00th=[ 600], 80.00th=[ 642], 90.00th=[ 701], 95.00th=[ 768], | 99.00th=[ 911], 99.50th=[ 944], 99.90th=[ 969], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 23, max= 168, per=25.08%, avg=82.26, stdev=24.39, samples=126 iops : min= 5, max= 42, avg=20.14, stdev= 6.10, samples=126 lat (msec) : 20=0.12%, 50=0.23%, 100=0.20%, 250=27.77%, 500=41.45% lat (msec) : 750=27.38%, 1000=2.85% cpu : usr=0.09%, sys=0.89%, ctx=5267, 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=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=145435: Mon Sep 7 17:36:37 2026 read: IOPS=19, BW=78.6KiB/s (80.5kB/s)(4984KiB/63378msec) slat (usec): min=1697, max=26403, avg=7616.30, stdev=3283.45 clat (msec): min=7, max=643, avg=243.18, stdev=53.85 lat (msec): min=16, max=651, avg=250.81, stdev=54.46 clat percentiles (msec): | 1.00th=[ 132], 5.00th=[ 163], 10.00th=[ 184], 20.00th=[ 205], | 30.00th=[ 218], 40.00th=[ 228], 50.00th=[ 241], 60.00th=[ 253], | 70.00th=[ 264], 80.00th=[ 284], 90.00th=[ 309], 95.00th=[ 330], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 592], 99.95th=[ 642], | 99.99th=[ 642] bw ( KiB/s): min= 24, max= 168, per=24.80%, avg=78.13, stdev=30.03, samples=126 iops : min= 6, max= 42, avg=19.11, stdev= 7.51, samples=126 write: IOPS=20, BW=82.9KiB/s (84.9kB/s)(5256KiB/63378msec); 0 zone resets slat (usec): min=36, max=10479, avg=216.71, stdev=426.42 clat (msec): min=145, max=979, avg=532.14, stdev=129.46 lat (msec): min=145, max=980, avg=532.36, stdev=129.46 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 334], 10.00th=[ 372], 20.00th=[ 422], | 30.00th=[ 460], 40.00th=[ 498], 50.00th=[ 527], 60.00th=[ 558], | 70.00th=[ 592], 80.00th=[ 634], 90.00th=[ 701], 95.00th=[ 760], | 99.00th=[ 877], 99.50th=[ 911], 99.90th=[ 969], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 15, max= 159, per=25.00%, avg=82.01, stdev=23.18, samples=126 iops : min= 3, max= 39, avg=20.08, stdev= 5.81, samples=126 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=0.04%, 250=29.06% lat (msec) : 500=40.51%, 750=27.34%, 1000=2.89% cpu : usr=0.13%, sys=0.87%, ctx=5379, 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=145436: Mon Sep 7 17:36:37 2026 read: IOPS=20, BW=80.7KiB/s (82.7kB/s)(5060KiB/62672msec) slat (usec): min=48, max=25478, avg=7523.77, stdev=3351.13 clat (msec): min=9, max=499, avg=241.49, stdev=55.68 lat (msec): min=14, max=509, avg=249.03, stdev=56.34 clat percentiles (msec): | 1.00th=[ 47], 5.00th=[ 157], 10.00th=[ 180], 20.00th=[ 203], | 30.00th=[ 215], 40.00th=[ 228], 50.00th=[ 241], 60.00th=[ 255], | 70.00th=[ 268], 80.00th=[ 284], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 380], 99.50th=[ 384], 99.90th=[ 489], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 7, max= 165, per=25.56%, avg=80.50, stdev=26.81, samples=124 iops : min= 1, max= 41, avg=19.70, stdev= 6.71, samples=124 write: IOPS=20, BW=82.7KiB/s (84.6kB/s)(5180KiB/62672msec); 0 zone resets slat (usec): min=34, max=6012, avg=223.82, stdev=375.37 clat (msec): min=66, max=1154, avg=530.26, stdev=141.20 lat (msec): min=66, max=1154, avg=530.49, stdev=141.20 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 326], 10.00th=[ 363], 20.00th=[ 409], | 30.00th=[ 460], 40.00th=[ 498], 50.00th=[ 531], 60.00th=[ 567], | 70.00th=[ 592], 80.00th=[ 634], 90.00th=[ 709], 95.00th=[ 751], | 99.00th=[ 911], 99.50th=[ 986], 99.90th=[ 1150], 99.95th=[ 1150], | 99.99th=[ 1150] bw ( KiB/s): min= 16, max= 144, per=24.93%, avg=81.77, stdev=25.12, samples=124 iops : min= 4, max= 36, avg=20.02, stdev= 6.30, samples=124 lat (msec) : 10=0.04%, 20=0.20%, 50=0.31%, 100=0.23%, 250=28.28% lat (msec) : 500=41.60%, 750=26.84%, 1000=2.27%, 2000=0.23% cpu : usr=0.12%, sys=0.86%, ctx=5035, majf=0, minf=16 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=315KiB/s (323kB/s), 78.4KiB/s-80.7KiB/s (80.3kB/s-82.7kB/s), io=19.6MiB (20.5MB), run=62672-63661msec WRITE: bw=328KiB/s (336kB/s), 81.6KiB/s-82.0KiB/s (83.5kB/s-84.9kB/s), io=20.4MiB (21.4MB), run=62672-63661msec 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=145449: Mon Sep 7 17:36:42 2026 read: IOPS=4, BW=172MiB/s (181MB/s)(40.0MiB/232msec) slat (nsec): min=15241k, max=15241k, avg=15240959.00, stdev= 0.00 clat (nsec): min=204677k, max=204677k, avg=204676536.00, stdev= 0.00 lat (nsec): min=219923k, max=219923k, avg=219922877.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 205], 10.00th=[ 205], 20.00th=[ 205], | 30.00th=[ 205], 40.00th=[ 205], 50.00th=[ 205], 60.00th=[ 205], | 70.00th=[ 205], 80.00th=[ 205], 90.00th=[ 205], 95.00th=[ 205], | 99.00th=[ 205], 99.50th=[ 205], 99.90th=[ 205], 99.95th=[ 205], | 99.99th=[ 205] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=5.63%, ctx=18, 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=172MiB/s (181MB/s), 172MiB/s-172MiB/s (181MB/s-181MB/s), io=40.0MiB (41.9MB), run=232-232msec 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