== sanity test 398c: run fio to test AIO ================= 02:22:47 (1788848567) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.49142 s, 85.4 MB/s osc.lustre-OST0000-osc-ffff94aed1527000.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=180333: Tue Sep 8 02:23:23 2026 write: IOPS=91, BW=366KiB/s (375kB/s)(10.0MiB/27983msec); 0 zone resets slat (usec): min=27, max=19508, avg=179.29, stdev=854.79 clat (msec): min=27, max=423, avg=174.58, stdev=52.54 lat (msec): min=27, max=423, avg=174.76, stdev=52.56 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 243], 95.00th=[ 275], | 99.00th=[ 338], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 160, max= 622, per=25.04%, avg=364.55, stdev=86.09, samples=55 iops : min= 40, max= 155, avg=90.80, stdev=21.49, samples=55 lat (msec) : 50=0.12%, 100=2.85%, 250=88.63%, 500=8.40% cpu : usr=0.14%, sys=0.77%, ctx=2352, 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=180334: Tue Sep 8 02:23:23 2026 write: IOPS=91, BW=364KiB/s (373kB/s)(10.0MiB/28117msec); 0 zone resets slat (usec): min=21, max=21280, avg=186.58, stdev=926.70 clat (msec): min=20, max=423, avg=174.20, stdev=53.93 lat (msec): min=20, max=423, avg=174.39, stdev=53.96 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 110], 10.00th=[ 120], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 245], 95.00th=[ 279], | 99.00th=[ 347], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 136, max= 518, per=24.77%, avg=360.71, stdev=89.13, samples=55 iops : min= 34, max= 129, avg=89.85, stdev=22.27, samples=55 lat (msec) : 50=0.55%, 100=2.77%, 250=87.70%, 500=8.98% cpu : usr=0.15%, sys=0.71%, ctx=1796, 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=180335: Tue Sep 8 02:23:23 2026 write: IOPS=91, BW=365KiB/s (374kB/s)(10.0MiB/28027msec); 0 zone resets slat (usec): min=27, max=16983, avg=248.39, stdev=1092.03 clat (msec): min=24, max=427, avg=174.65, stdev=52.00 lat (msec): min=24, max=427, avg=174.90, stdev=52.04 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 109], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 194], 80.00th=[ 215], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 347], 99.90th=[ 376], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 176, max= 630, per=25.02%, avg=364.35, stdev=89.33, samples=55 iops : min= 44, max= 157, avg=90.76, stdev=22.28, samples=55 lat (msec) : 50=0.23%, 100=2.93%, 250=86.72%, 500=10.12% cpu : usr=0.24%, sys=0.93%, ctx=2898, 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=180336: Tue Sep 8 02:23:23 2026 write: IOPS=91, BW=364KiB/s (373kB/s)(10.0MiB/28109msec); 0 zone resets slat (usec): min=28, max=16717, avg=177.47, stdev=803.53 clat (msec): min=14, max=362, avg=174.31, stdev=51.23 lat (msec): min=14, max=362, avg=174.49, stdev=51.22 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 106], 10.00th=[ 117], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 178], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 251], 95.00th=[ 279], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 184, max= 638, per=24.74%, avg=360.25, stdev=89.80, samples=55 iops : min= 46, max= 159, avg=89.75, stdev=22.40, samples=55 lat (msec) : 20=0.04%, 50=0.16%, 100=2.77%, 250=86.95%, 500=10.08% cpu : usr=0.15%, sys=0.88%, ctx=2376, 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=1457KiB/s (1492kB/s), 364KiB/s-366KiB/s (373kB/s-375kB/s), io=40.0MiB (41.9MB), run=27983-28117msec 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=180350: Tue Sep 8 02:23:58 2026 read: IOPS=45, BW=184KiB/s (188kB/s)(5048KiB/27491msec) slat (usec): min=42, max=77788, avg=11994.64, stdev=7068.89 clat (msec): min=13, max=313, avg=162.75, stdev=41.64 lat (msec): min=13, max=327, avg=174.75, stdev=43.31 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 100], 10.00th=[ 113], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 305], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 106, max= 294, per=25.28%, avg=183.04, stdev=37.73, samples=54 iops : min= 26, max= 73, avg=45.26, stdev= 9.54, samples=54 write: IOPS=47, BW=189KiB/s (193kB/s)(5192KiB/27491msec); 0 zone resets slat (usec): min=26, max=8191, avg=193.84, stdev=533.07 clat (msec): min=24, max=318, avg=168.10, stdev=39.30 lat (msec): min=24, max=318, avg=168.30, stdev=39.31 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 119, max= 287, per=24.99%, avg=188.17, stdev=40.14, samples=54 iops : min= 29, max= 71, avg=46.56, stdev=10.05, samples=54 lat (msec) : 20=0.12%, 50=0.16%, 100=3.36%, 250=93.79%, 500=2.58% cpu : usr=0.27%, sys=1.62%, ctx=4335, 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=180351: Tue Sep 8 02:23:58 2026 read: IOPS=45, BW=180KiB/s (184kB/s)(4976KiB/27626msec) slat (usec): min=2797, max=76770, avg=12334.45, stdev=6902.00 clat (msec): min=67, max=306, avg=163.70, stdev=40.01 lat (msec): min=74, max=321, avg=176.04, stdev=41.47 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 115], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 234], | 99.00th=[ 268], 99.50th=[ 288], 99.90th=[ 305], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 89, max= 278, per=24.73%, avg=179.02, stdev=37.76, samples=54 iops : min= 22, max= 69, avg=44.28, stdev= 9.53, samples=54 write: IOPS=47, BW=191KiB/s (195kB/s)(5264KiB/27626msec); 0 zone resets slat (usec): min=28, max=7803, avg=203.97, stdev=553.27 clat (msec): min=79, max=304, avg=167.03, stdev=38.66 lat (msec): min=80, max=304, avg=167.23, stdev=38.66 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 110], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 124, max= 293, per=25.31%, avg=190.57, stdev=40.90, samples=54 iops : min= 31, max= 73, avg=47.19, stdev=10.20, samples=54 lat (msec) : 100=3.44%, 250=93.95%, 500=2.62% cpu : usr=0.25%, sys=1.80%, ctx=4619, 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=180352: Tue Sep 8 02:23:58 2026 read: IOPS=44, BW=180KiB/s (184kB/s)(4984KiB/27692msec) slat (usec): min=2728, max=61405, avg=12208.19, stdev=6757.28 clat (msec): min=28, max=318, avg=164.13, stdev=42.16 lat (msec): min=34, max=334, avg=176.35, stdev=43.95 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 99], 10.00th=[ 111], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 313], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 75, max= 341, per=24.78%, avg=179.41, stdev=48.82, samples=54 iops : min= 18, max= 85, avg=44.35, stdev=12.28, samples=54 write: IOPS=47, BW=190KiB/s (194kB/s)(5256KiB/27692msec); 0 zone resets slat (usec): min=24, max=10858, avg=218.03, stdev=668.80 clat (msec): min=34, max=308, avg=167.58, stdev=39.29 lat (msec): min=37, max=308, avg=167.80, stdev=39.25 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 236], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 96, max= 308, per=24.97%, avg=188.02, stdev=42.72, samples=54 iops : min= 24, max= 77, avg=46.54, stdev=10.77, samples=54 lat (msec) : 50=0.12%, 100=4.06%, 250=93.59%, 500=2.23% cpu : usr=0.23%, sys=1.90%, ctx=4389, 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=180353: Tue Sep 8 02:23:58 2026 read: IOPS=45, BW=183KiB/s (187kB/s)(5060KiB/27710msec) slat (msec): min=2, max=158, avg=12.14, stdev= 7.91 clat (msec): min=35, max=342, avg=163.30, stdev=41.57 lat (msec): min=54, max=348, avg=175.44, stdev=43.07 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 103], 10.00th=[ 115], 20.00th=[ 129], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 169], | 70.00th=[ 182], 80.00th=[ 197], 90.00th=[ 220], 95.00th=[ 239], | 99.00th=[ 279], 99.50th=[ 296], 99.90th=[ 321], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 48, max= 294, per=25.07%, avg=181.54, stdev=45.38, samples=54 iops : min= 12, max= 73, avg=44.93, stdev=11.31, samples=54 write: IOPS=46, BW=187KiB/s (191kB/s)(5180KiB/27710msec); 0 zone resets slat (usec): min=32, max=30102, avg=227.05, stdev=1097.50 clat (msec): min=34, max=321, avg=167.55, stdev=43.61 lat (msec): min=34, max=321, avg=167.78, stdev=43.57 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 103], 10.00th=[ 114], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 176], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 292], 99.50th=[ 305], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 75, max= 300, per=24.56%, avg=184.96, stdev=48.27, samples=54 iops : min= 18, max= 75, avg=45.76, stdev=12.21, samples=54 lat (msec) : 50=0.12%, 100=4.10%, 250=91.99%, 500=3.79% cpu : usr=0.22%, sys=1.79%, ctx=4328, 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=724KiB/s (742kB/s), 180KiB/s-184KiB/s (184kB/s-188kB/s), io=19.6MiB (20.5MB), run=27491-27710msec WRITE: bw=754KiB/s (772kB/s), 187KiB/s-191KiB/s (191kB/s-195kB/s), io=20.4MiB (21.4MB), run=27491-27710msec 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=180361: Tue Sep 8 02:24:05 2026 read: IOPS=2, BW=94.1MiB/s (98.7MB/s)(40.0MiB/425msec) slat (nsec): min=34334k, max=34334k, avg=34333534.00, stdev= 0.00 clat (nsec): min=371778k, max=371778k, avg=371777698.00, stdev= 0.00 lat (nsec): min=406115k, max=406115k, avg=406115350.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 372], 10.00th=[ 372], 20.00th=[ 372], | 30.00th=[ 372], 40.00th=[ 372], 50.00th=[ 372], 60.00th=[ 372], | 70.00th=[ 372], 80.00th=[ 372], 90.00th=[ 372], 95.00th=[ 372], | 99.00th=[ 372], 99.50th=[ 372], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.12%, ctx=12, 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=94.1MiB/s (98.7MB/s), 94.1MiB/s-94.1MiB/s (98.7MB/s-98.7MB/s), io=40.0MiB (41.9MB), run=425-425msec 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