== sanity test 398c: run fio to test AIO ================= 01:35:48 (1784698548) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.193973 s, 216 MB/s osc.lustre-OST0000-osc-ffff924008732800.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=147837: Wed Jul 22 01:36:43 2026 write: IOPS=50, BW=201KiB/s (206kB/s)(10.0MiB/50857msec); 0 zone resets slat (usec): min=37, max=4187, avg=235.06, stdev=213.15 clat (msec): min=92, max=558, avg=317.30, stdev=79.19 lat (msec): min=92, max=559, avg=317.53, stdev=79.20 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 182], 10.00th=[ 215], 20.00th=[ 251], | 30.00th=[ 271], 40.00th=[ 296], 50.00th=[ 321], 60.00th=[ 347], | 70.00th=[ 363], 80.00th=[ 384], 90.00th=[ 418], 95.00th=[ 443], | 99.00th=[ 493], 99.50th=[ 518], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 127, max= 416, per=24.90%, avg=200.45, stdev=52.38, samples=101 iops : min= 31, max= 104, avg=49.97, stdev=13.18, samples=101 lat (msec) : 100=0.62%, 250=19.69%, 500=78.91%, 750=0.78% cpu : usr=0.11%, sys=0.87%, ctx=2734, 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=147838: Wed Jul 22 01:36:43 2026 write: IOPS=50, BW=201KiB/s (206kB/s)(10.0MiB/50858msec); 0 zone resets slat (usec): min=36, max=3757, avg=235.11, stdev=187.68 clat (msec): min=93, max=557, avg=317.43, stdev=80.05 lat (msec): min=93, max=557, avg=317.66, stdev=80.06 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 186], 10.00th=[ 215], 20.00th=[ 249], | 30.00th=[ 271], 40.00th=[ 296], 50.00th=[ 321], 60.00th=[ 347], | 70.00th=[ 363], 80.00th=[ 384], 90.00th=[ 418], 95.00th=[ 439], | 99.00th=[ 498], 99.50th=[ 523], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 127, max= 416, per=24.90%, avg=200.45, stdev=54.67, samples=101 iops : min= 31, max= 104, avg=49.97, stdev=13.75, samples=101 lat (msec) : 100=0.62%, 250=19.65%, 500=78.83%, 750=0.90% cpu : usr=0.10%, sys=0.88%, ctx=2940, 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=147839: Wed Jul 22 01:36:43 2026 write: IOPS=50, BW=201KiB/s (206kB/s)(10.0MiB/50856msec); 0 zone resets slat (usec): min=48, max=3826, avg=242.27, stdev=199.27 clat (msec): min=118, max=561, avg=317.22, stdev=77.80 lat (msec): min=118, max=561, avg=317.46, stdev=77.81 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 190], 10.00th=[ 215], 20.00th=[ 249], | 30.00th=[ 275], 40.00th=[ 300], 50.00th=[ 321], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 384], 90.00th=[ 414], 95.00th=[ 435], | 99.00th=[ 498], 99.50th=[ 518], 99.90th=[ 527], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 127, max= 352, per=24.88%, avg=200.30, stdev=48.07, samples=101 iops : min= 31, max= 88, avg=49.93, stdev=12.09, samples=101 lat (msec) : 250=20.70%, 500=78.36%, 750=0.94% cpu : usr=0.08%, sys=0.88%, ctx=3086, 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=147840: Wed Jul 22 01:36:43 2026 write: IOPS=50, BW=201KiB/s (206kB/s)(10.0MiB/50856msec); 0 zone resets slat (usec): min=54, max=3592, avg=250.06, stdev=190.91 clat (msec): min=28, max=561, avg=317.23, stdev=78.08 lat (msec): min=28, max=561, avg=317.48, stdev=78.08 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 190], 10.00th=[ 218], 20.00th=[ 249], | 30.00th=[ 275], 40.00th=[ 296], 50.00th=[ 321], 60.00th=[ 342], | 70.00th=[ 363], 80.00th=[ 384], 90.00th=[ 414], 95.00th=[ 435], | 99.00th=[ 493], 99.50th=[ 518], 99.90th=[ 550], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 127, max= 368, per=24.92%, avg=200.57, stdev=47.72, samples=101 iops : min= 31, max= 92, avg=50.00, stdev=12.01, samples=101 lat (msec) : 50=0.08%, 100=0.12%, 250=19.88%, 500=79.14%, 750=0.78% cpu : usr=0.10%, sys=0.94%, ctx=3080, 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=805KiB/s (825kB/s), 201KiB/s-201KiB/s (206kB/s-206kB/s), io=40.0MiB (41.9MB), run=50856-50858msec 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=147858: Wed Jul 22 01:37:16 2026 read: IOPS=42, BW=170KiB/s (174kB/s)(5048KiB/29624msec) slat (usec): min=1428, max=10843, avg=3846.43, stdev=1317.69 clat (msec): min=4, max=213, avg=117.42, stdev=24.25 lat (msec): min=9, max=216, avg=121.28, stdev=24.59 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 82], 10.00th=[ 89], 20.00th=[ 99], | 30.00th=[ 105], 40.00th=[ 110], 50.00th=[ 115], 60.00th=[ 123], | 70.00th=[ 130], 80.00th=[ 138], 90.00th=[ 148], 95.00th=[ 161], | 99.00th=[ 178], 99.50th=[ 182], 99.90th=[ 201], 99.95th=[ 213], | 99.99th=[ 213] bw ( KiB/s): min= 104, max= 288, per=25.21%, avg=170.43, stdev=44.03, samples=58 iops : min= 26, max= 72, avg=42.52, stdev=11.00, samples=58 write: IOPS=43, BW=175KiB/s (179kB/s)(5192KiB/29624msec); 0 zone resets slat (usec): min=60, max=4384, avg=251.22, stdev=220.81 clat (msec): min=94, max=421, avg=246.25, stdev=62.66 lat (msec): min=94, max=421, avg=246.50, stdev=62.68 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 148], 10.00th=[ 171], 20.00th=[ 192], | 30.00th=[ 209], 40.00th=[ 226], 50.00th=[ 243], 60.00th=[ 259], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 334], 95.00th=[ 359], | 99.00th=[ 397], 99.50th=[ 405], 99.90th=[ 409], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 104, max= 256, per=24.79%, avg=174.53, stdev=32.81, samples=58 iops : min= 26, max= 64, avg=43.53, stdev= 8.28, samples=58 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=11.25%, 250=65.51% lat (msec) : 500=23.09% cpu : usr=0.15%, sys=2.07%, ctx=5033, 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=147859: Wed Jul 22 01:37:16 2026 read: IOPS=41, BW=168KiB/s (172kB/s)(4976KiB/29671msec) slat (usec): min=1557, max=13076, avg=3795.14, stdev=1290.77 clat (msec): min=3, max=205, avg=116.12, stdev=26.30 lat (msec): min=7, max=209, avg=119.92, stdev=26.64 clat percentiles (msec): | 1.00th=[ 31], 5.00th=[ 81], 10.00th=[ 88], 20.00th=[ 96], | 30.00th=[ 103], 40.00th=[ 110], 50.00th=[ 115], 60.00th=[ 122], | 70.00th=[ 128], 80.00th=[ 138], 90.00th=[ 148], 95.00th=[ 161], | 99.00th=[ 192], 99.50th=[ 197], 99.90th=[ 203], 99.95th=[ 205], | 99.99th=[ 205] bw ( KiB/s): min= 63, max= 296, per=24.65%, avg=166.61, stdev=49.40, samples=59 iops : min= 15, max= 74, avg=41.56, stdev=12.40, samples=59 write: IOPS=44, BW=177KiB/s (182kB/s)(5264KiB/29671msec); 0 zone resets slat (usec): min=57, max=1905, avg=245.83, stdev=157.79 clat (msec): min=41, max=421, avg=246.53, stdev=65.74 lat (msec): min=42, max=421, avg=246.78, stdev=65.75 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 144], 10.00th=[ 165], 20.00th=[ 192], | 30.00th=[ 209], 40.00th=[ 228], 50.00th=[ 245], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 338], 95.00th=[ 363], | 99.00th=[ 397], 99.50th=[ 405], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 120, max= 288, per=25.09%, avg=176.66, stdev=36.42, samples=59 iops : min= 30, max= 72, avg=44.07, stdev= 9.16, samples=59 lat (msec) : 4=0.04%, 10=0.12%, 20=0.12%, 50=0.39%, 100=12.11% lat (msec) : 250=63.36%, 500=23.87% cpu : usr=0.23%, sys=1.96%, ctx=4915, 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=147860: Wed Jul 22 01:37:16 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(4984KiB/29606msec) slat (usec): min=41, max=13275, avg=3855.26, stdev=1331.14 clat (msec): min=5, max=220, avg=116.45, stdev=26.34 lat (msec): min=8, max=225, avg=120.31, stdev=26.73 clat percentiles (msec): | 1.00th=[ 21], 5.00th=[ 80], 10.00th=[ 88], 20.00th=[ 99], | 30.00th=[ 105], 40.00th=[ 111], 50.00th=[ 116], 60.00th=[ 123], | 70.00th=[ 129], 80.00th=[ 138], 90.00th=[ 148], 95.00th=[ 159], | 99.00th=[ 180], 99.50th=[ 192], 99.90th=[ 213], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 80, max= 328, per=25.04%, avg=169.28, stdev=48.98, samples=58 iops : min= 20, max= 82, avg=42.22, stdev=12.28, samples=58 write: IOPS=44, BW=178KiB/s (182kB/s)(5256KiB/29606msec); 0 zone resets slat (usec): min=44, max=1589, avg=243.06, stdev=148.64 clat (msec): min=47, max=444, avg=245.88, stdev=66.08 lat (msec): min=47, max=444, avg=246.12, stdev=66.09 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 144], 10.00th=[ 167], 20.00th=[ 190], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 241], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 363], | 99.00th=[ 397], 99.50th=[ 409], 99.90th=[ 435], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 103, max= 257, per=25.08%, avg=176.59, stdev=38.88, samples=58 iops : min= 25, max= 64, avg=44.05, stdev= 9.78, samples=58 lat (msec) : 10=0.16%, 20=0.27%, 50=0.55%, 100=10.94%, 250=64.57% lat (msec) : 500=23.52% cpu : usr=0.22%, sys=1.95%, ctx=4982, 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=147861: Wed Jul 22 01:37:16 2026 read: IOPS=42, BW=171KiB/s (175kB/s)(5060KiB/29573msec) slat (usec): min=1399, max=12870, avg=3889.65, stdev=1286.12 clat (msec): min=3, max=291, avg=118.10, stdev=26.27 lat (msec): min=6, max=294, avg=122.00, stdev=26.53 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 84], 10.00th=[ 88], 20.00th=[ 97], | 30.00th=[ 105], 40.00th=[ 111], 50.00th=[ 117], 60.00th=[ 124], | 70.00th=[ 131], 80.00th=[ 138], 90.00th=[ 150], 95.00th=[ 161], | 99.00th=[ 184], 99.50th=[ 192], 99.90th=[ 245], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 80, max= 304, per=25.51%, avg=172.47, stdev=44.31, samples=58 iops : min= 20, max= 76, avg=43.02, stdev=11.12, samples=58 write: IOPS=43, BW=175KiB/s (179kB/s)(5180KiB/29573msec); 0 zone resets slat (usec): min=42, max=1344, avg=237.43, stdev=133.94 clat (msec): min=48, max=443, avg=245.34, stdev=66.43 lat (msec): min=48, max=443, avg=245.58, stdev=66.44 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 146], 10.00th=[ 163], 20.00th=[ 190], | 30.00th=[ 209], 40.00th=[ 224], 50.00th=[ 239], 60.00th=[ 257], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 342], 95.00th=[ 368], | 99.00th=[ 401], 99.50th=[ 422], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 88, max= 280, per=24.79%, avg=174.55, stdev=37.11, samples=58 iops : min= 22, max= 70, avg=43.53, stdev= 9.32, samples=58 lat (msec) : 4=0.04%, 10=0.12%, 20=0.08%, 50=0.23%, 100=11.68% lat (msec) : 250=65.90%, 500=21.95% cpu : usr=0.22%, sys=2.02%, ctx=5037, 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=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=676KiB/s (693kB/s), 168KiB/s-171KiB/s (172kB/s-175kB/s), io=19.6MiB (20.5MB), run=29573-29671msec WRITE: bw=704KiB/s (721kB/s), 175KiB/s-178KiB/s (179kB/s-182kB/s), io=20.4MiB (21.4MB), run=29573-29671msec 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=147868: Wed Jul 22 01:37:20 2026 read: IOPS=7, BW=299MiB/s (313MB/s)(40.0MiB/134msec) slat (nsec): min=13076k, max=13076k, avg=13075865.00, stdev= 0.00 clat (nsec): min=114569k, max=114569k, avg=114568533.00, stdev= 0.00 lat (nsec): min=127649k, max=127649k, avg=127648716.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 115], 10.00th=[ 115], 20.00th=[ 115], | 30.00th=[ 115], 40.00th=[ 115], 50.00th=[ 115], 60.00th=[ 115], | 70.00th=[ 115], 80.00th=[ 115], 90.00th=[ 115], 95.00th=[ 115], | 99.00th=[ 115], 99.50th=[ 115], 99.90th=[ 115], 99.95th=[ 115], | 99.99th=[ 115] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=9.02%, ctx=28, 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=299MiB/s (313MB/s), 299MiB/s-299MiB/s (313MB/s-313MB/s), io=40.0MiB (41.9MB), run=134-134msec 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