== sanity test 398c: run fio to test AIO ================= 21:54:41 (1786413281) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.811562 s, 51.7 MB/s osc.lustre-OST0000-osc-ffff92e8d25d4000.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=180132: Mon Aug 10 21:55:20 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27341msec); 0 zone resets slat (usec): min=35, max=18332, avg=372.71, stdev=1056.99 clat (msec): min=37, max=321, avg=170.29, stdev=41.52 lat (msec): min=37, max=321, avg=170.67, stdev=41.52 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 110], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 249], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 253, max= 603, per=24.98%, avg=373.39, stdev=71.88, samples=54 iops : min= 63, max= 150, avg=92.94, stdev=17.97, samples=54 lat (msec) : 50=0.04%, 100=3.09%, 250=92.34%, 500=4.53% cpu : usr=0.24%, sys=1.63%, ctx=2818, 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=180133: Mon Aug 10 21:55:20 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27348msec); 0 zone resets slat (usec): min=35, max=28065, avg=385.25, stdev=1160.99 clat (msec): min=17, max=331, avg=170.25, stdev=40.76 lat (msec): min=18, max=331, avg=170.64, stdev=40.71 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 142], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 317], 99.90th=[ 334], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 255, max= 556, per=25.00%, avg=373.80, stdev=69.73, samples=54 iops : min= 63, max= 139, avg=93.06, stdev=17.50, samples=54 lat (msec) : 20=0.04%, 50=0.04%, 100=2.30%, 250=93.63%, 500=3.98% cpu : usr=0.22%, sys=1.47%, ctx=2314, 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=180134: Mon Aug 10 21:55:20 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27388msec); 0 zone resets slat (usec): min=35, max=18302, avg=422.32, stdev=1112.89 clat (msec): min=21, max=348, avg=169.88, stdev=40.97 lat (msec): min=21, max=348, avg=170.31, stdev=40.97 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 288], 99.50th=[ 313], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 232, max= 588, per=24.87%, avg=371.78, stdev=71.74, samples=54 iops : min= 58, max= 147, avg=92.56, stdev=17.97, samples=54 lat (msec) : 50=0.39%, 100=1.64%, 250=94.30%, 500=3.67% cpu : usr=0.32%, sys=1.74%, ctx=3142, 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=180135: Mon Aug 10 21:55:20 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27385msec); 0 zone resets slat (usec): min=36, max=16670, avg=355.46, stdev=965.25 clat (msec): min=33, max=348, avg=169.69, stdev=40.65 lat (msec): min=34, max=348, avg=170.05, stdev=40.66 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 110], 10.00th=[ 123], 20.00th=[ 142], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 334], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 225, max= 627, per=24.89%, avg=372.13, stdev=77.65, samples=54 iops : min= 56, max= 156, avg=92.63, stdev=19.36, samples=54 lat (msec) : 50=0.12%, 100=2.46%, 250=93.24%, 500=4.18% cpu : usr=0.22%, sys=1.35%, ctx=2668, 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=1496KiB/s (1531kB/s), 374KiB/s-375KiB/s (383kB/s-384kB/s), io=40.0MiB (41.9MB), run=27341-27388msec 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=180151: Mon Aug 10 21:56:07 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(5048KiB/35870msec) slat (usec): min=2999, max=73910, avg=15988.64, stdev=8765.92 clat (msec): min=92, max=382, avg=212.42, stdev=52.68 lat (msec): min=100, max=389, avg=228.42, stdev=54.83 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 239], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 35, max= 254, per=25.01%, avg=139.80, stdev=35.28, samples=71 iops : min= 8, max= 63, avg=34.44, stdev= 8.84, samples=71 write: IOPS=36, BW=145KiB/s (148kB/s)(5192KiB/35870msec); 0 zone resets slat (usec): min=42, max=16778, avg=361.42, stdev=974.44 clat (msec): min=80, max=391, avg=216.00, stdev=48.78 lat (msec): min=83, max=391, avg=216.36, stdev=48.77 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 136], 10.00th=[ 150], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 228], | 70.00th=[ 241], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 342], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 42, max= 245, per=24.79%, avg=144.30, stdev=36.54, samples=71 iops : min= 10, max= 61, avg=35.56, stdev= 9.14, samples=71 lat (msec) : 100=0.23%, 250=76.88%, 500=22.89% cpu : usr=0.24%, sys=1.97%, ctx=4614, 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=180152: Mon Aug 10 21:56:07 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4976KiB/35857msec) slat (usec): min=2292, max=62981, avg=15967.11, stdev=8919.23 clat (msec): min=22, max=424, avg=209.85, stdev=52.75 lat (msec): min=30, max=452, avg=225.83, stdev=54.79 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 124], 10.00th=[ 140], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 197], 50.00th=[ 209], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 393], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 35, max= 270, per=24.64%, avg=137.75, stdev=38.28, samples=71 iops : min= 8, max= 67, avg=33.93, stdev= 9.65, samples=71 write: IOPS=36, BW=147KiB/s (150kB/s)(5264KiB/35857msec); 0 zone resets slat (usec): min=51, max=19999, avg=399.00, stdev=1212.08 clat (msec): min=94, max=386, avg=219.34, stdev=49.28 lat (msec): min=94, max=391, avg=219.74, stdev=49.32 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 178], | 30.00th=[ 192], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 234], | 70.00th=[ 245], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 359], 99.90th=[ 384], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 64, max= 247, per=25.15%, avg=146.37, stdev=34.12, samples=71 iops : min= 16, max= 61, avg=36.10, stdev= 8.55, samples=71 lat (msec) : 50=0.04%, 100=0.35%, 250=75.31%, 500=24.30% cpu : usr=0.23%, sys=2.06%, ctx=4444, 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=180153: Mon Aug 10 21:56:07 2026 read: IOPS=34, BW=139KiB/s (142kB/s)(4984KiB/35827msec) slat (usec): min=3063, max=61671, avg=15883.25, stdev=8849.28 clat (msec): min=35, max=392, avg=212.10, stdev=52.78 lat (msec): min=49, max=405, avg=227.99, stdev=55.01 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 165], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 224], | 70.00th=[ 243], 80.00th=[ 262], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 63, max= 231, per=24.74%, avg=138.32, stdev=36.02, samples=71 iops : min= 15, max= 57, avg=34.07, stdev= 9.03, samples=71 write: IOPS=36, BW=147KiB/s (150kB/s)(5256KiB/35827msec); 0 zone resets slat (usec): min=42, max=15046, avg=342.34, stdev=886.16 clat (msec): min=107, max=393, avg=217.16, stdev=50.66 lat (msec): min=107, max=393, avg=217.51, stdev=50.67 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 188], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 230], | 70.00th=[ 243], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 305], | 99.00th=[ 342], 99.50th=[ 368], 99.90th=[ 388], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 63, max= 239, per=25.05%, avg=145.79, stdev=41.32, samples=71 iops : min= 15, max= 59, avg=35.93, stdev=10.37, samples=71 lat (msec) : 50=0.08%, 100=0.23%, 250=74.10%, 500=25.59% cpu : usr=0.25%, sys=1.95%, ctx=4555, 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=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=180154: Mon Aug 10 21:56:07 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5060KiB/35690msec) slat (usec): min=86, max=67327, avg=15367.42, stdev=8374.50 clat (msec): min=48, max=373, avg=213.65, stdev=52.17 lat (msec): min=48, max=405, avg=229.03, stdev=53.75 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 169], | 30.00th=[ 186], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 300], | 99.00th=[ 347], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 47, max= 216, per=25.38%, avg=141.89, stdev=32.08, samples=70 iops : min= 11, max= 54, avg=34.97, stdev= 8.05, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5180KiB/35690msec); 0 zone resets slat (usec): min=37, max=16380, avg=356.19, stdev=944.53 clat (msec): min=46, max=457, avg=216.09, stdev=51.44 lat (msec): min=46, max=457, avg=216.45, stdev=51.46 clat percentiles (msec): | 1.00th=[ 113], 5.00th=[ 133], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 190], 40.00th=[ 203], 50.00th=[ 215], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 460], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 79, max= 262, per=24.85%, avg=144.63, stdev=38.64, samples=70 iops : min= 19, max= 65, avg=35.66, stdev= 9.73, samples=70 lat (msec) : 50=0.12%, 100=0.31%, 250=75.98%, 500=23.59% cpu : usr=0.24%, sys=1.92%, ctx=4576, 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=559KiB/s (573kB/s), 139KiB/s-142KiB/s (142kB/s-145kB/s), io=19.6MiB (20.5MB), run=35690-35870msec WRITE: bw=582KiB/s (596kB/s), 145KiB/s-147KiB/s (148kB/s-150kB/s), io=20.4MiB (21.4MB), run=35690-35870msec 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=180164: Mon Aug 10 21:56:20 2026 read: IOPS=1, BW=72.1MiB/s (75.6MB/s)(40.0MiB/555msec) slat (nsec): min=37581k, max=37581k, avg=37580918.00, stdev= 0.00 clat (nsec): min=499083k, max=499083k, avg=499083440.00, stdev= 0.00 lat (nsec): min=536698k, max=536698k, avg=536697926.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 498], 5.00th=[ 498], 10.00th=[ 498], 20.00th=[ 498], | 30.00th=[ 498], 40.00th=[ 498], 50.00th=[ 498], 60.00th=[ 498], | 70.00th=[ 498], 80.00th=[ 498], 90.00th=[ 498], 95.00th=[ 498], | 99.00th=[ 498], 99.50th=[ 498], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.62%, ctx=4, 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=72.1MiB/s (75.6MB/s), 72.1MiB/s-72.1MiB/s (75.6MB/s-75.6MB/s), io=40.0MiB (41.9MB), run=555-555msec 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