== sanity test 398c: run fio to test AIO ================= 19:15:57 (1763338557) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.31477 s, 133 MB/s osc.lustre-OST0000-osc-ffff98f050196000.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=183080: Sun Nov 16 19:16:31 2025 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25657msec); 0 zone resets slat (usec): min=28, max=10543, avg=234.89, stdev=636.50 clat (msec): min=20, max=301, avg=159.34, stdev=32.37 lat (msec): min=21, max=301, avg=159.58, stdev=32.38 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 116], 10.00th=[ 123], 20.00th=[ 134], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 264], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 300] bw ( KiB/s): min= 286, max= 509, per=24.96%, avg=398.34, stdev=53.72, samples=50 iops : min= 71, max= 127, avg=99.20, stdev=13.53, samples=50 lat (msec) : 50=0.08%, 100=1.56%, 250=97.03%, 500=1.33% cpu : usr=0.28%, sys=1.38%, ctx=3082, 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=183081: Sun Nov 16 19:16:31 2025 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25639msec); 0 zone resets slat (usec): min=27, max=7865, avg=164.73, stdev=403.98 clat (msec): min=27, max=315, avg=159.79, stdev=33.60 lat (msec): min=27, max=315, avg=159.96, stdev=33.60 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 266], 99.50th=[ 284], 99.90th=[ 317], 99.95th=[ 317], | 99.99th=[ 317] bw ( KiB/s): min= 286, max= 566, per=25.04%, avg=399.68, stdev=56.52, samples=50 iops : min= 71, max= 141, avg=99.56, stdev=14.14, samples=50 lat (msec) : 50=0.04%, 100=1.95%, 250=96.25%, 500=1.76% cpu : usr=0.24%, sys=1.14%, ctx=2168, 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=183082: Sun Nov 16 19:16:31 2025 write: IOPS=100, BW=402KiB/s (411kB/s)(10.0MiB/25492msec); 0 zone resets slat (usec): min=28, max=8268, avg=211.12, stdev=540.39 clat (msec): min=22, max=343, avg=158.92, stdev=34.43 lat (msec): min=23, max=343, avg=159.14, stdev=34.41 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 110], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 268], 99.50th=[ 292], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 342] bw ( KiB/s): min= 262, max= 573, per=25.19%, avg=402.02, stdev=58.60, samples=50 iops : min= 65, max= 143, avg=100.14, stdev=14.69, samples=50 lat (msec) : 50=0.20%, 100=2.66%, 250=95.12%, 500=2.03% cpu : usr=0.23%, sys=1.31%, ctx=2929, 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=183083: Sun Nov 16 19:16:31 2025 write: IOPS=99, BW=399KiB/s (409kB/s)(10.0MiB/25636msec); 0 zone resets slat (usec): min=28, max=5918, avg=195.56, stdev=492.74 clat (msec): min=79, max=323, avg=159.39, stdev=32.89 lat (msec): min=79, max=324, avg=159.59, stdev=32.87 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 133], | 30.00th=[ 140], 40.00th=[ 148], 50.00th=[ 157], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 292], 99.95th=[ 292], | 99.99th=[ 326] bw ( KiB/s): min= 294, max= 508, per=25.03%, avg=399.40, stdev=48.38, samples=50 iops : min= 73, max= 127, avg=99.48, stdev=12.13, samples=50 lat (msec) : 100=2.27%, 250=95.98%, 500=1.76% cpu : usr=0.21%, sys=1.14%, ctx=2458, 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=1596KiB/s (1635kB/s), 399KiB/s-402KiB/s (409kB/s-411kB/s), io=40.0MiB (41.9MB), run=25492-25657msec 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=183097: Sun Nov 16 19:17:07 2025 read: IOPS=44, BW=179KiB/s (183kB/s)(5048KiB/28194msec) slat (usec): min=43, max=46216, avg=12433.89, stdev=5280.34 clat (msec): min=15, max=276, avg=166.90, stdev=37.94 lat (msec): min=27, max=296, avg=179.34, stdev=38.98 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 264], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 87, max= 271, per=25.13%, avg=178.20, stdev=36.79, samples=55 iops : min= 21, max= 67, avg=44.04, stdev= 9.16, samples=55 write: IOPS=46, BW=184KiB/s (189kB/s)(5192KiB/28194msec); 0 zone resets slat (usec): min=30, max=8641, avg=233.45, stdev=553.51 clat (msec): min=46, max=286, avg=172.47, stdev=34.88 lat (msec): min=47, max=286, avg=172.70, stdev=34.86 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 116], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 180], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 230], | 99.00th=[ 249], 99.50th=[ 257], 99.90th=[ 275], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 111, max= 320, per=24.88%, avg=183.62, stdev=41.68, samples=55 iops : min= 27, max= 80, avg=45.44, stdev=10.50, samples=55 lat (msec) : 20=0.04%, 50=0.31%, 100=2.19%, 250=95.66%, 500=1.80% cpu : usr=0.34%, sys=2.09%, ctx=4618, 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=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=183098: Sun Nov 16 19:17:07 2025 read: IOPS=44, BW=176KiB/s (180kB/s)(4976KiB/28269msec) slat (usec): min=3852, max=51757, avg=12645.43, stdev=5271.59 clat (msec): min=50, max=305, avg=166.92, stdev=35.13 lat (msec): min=62, max=317, avg=179.57, stdev=36.09 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 184], 80.00th=[ 194], 90.00th=[ 211], 95.00th=[ 230], | 99.00th=[ 257], 99.50th=[ 271], 99.90th=[ 296], 99.95th=[ 305], | 99.99th=[ 305] bw ( KiB/s): min= 103, max= 271, per=24.66%, avg=174.84, stdev=32.45, samples=56 iops : min= 25, max= 67, avg=43.23, stdev= 8.11, samples=56 write: IOPS=46, BW=186KiB/s (191kB/s)(5264KiB/28269msec); 0 zone resets slat (usec): min=32, max=5233, avg=206.74, stdev=401.08 clat (msec): min=23, max=271, avg=171.71, stdev=34.92 lat (msec): min=24, max=271, avg=171.92, stdev=34.93 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 203], 90.00th=[ 215], 95.00th=[ 228], | 99.00th=[ 255], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 112, max= 279, per=25.17%, avg=185.77, stdev=38.91, samples=56 iops : min= 28, max= 69, avg=45.96, stdev= 9.75, samples=56 lat (msec) : 50=0.04%, 100=1.84%, 250=96.60%, 500=1.52% cpu : usr=0.31%, sys=2.06%, ctx=4775, 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=183099: Sun Nov 16 19:17:07 2025 read: IOPS=44, BW=176KiB/s (181kB/s)(4984KiB/28274msec) slat (usec): min=2934, max=53481, avg=12546.15, stdev=5498.08 clat (msec): min=51, max=278, avg=166.14, stdev=36.57 lat (msec): min=67, max=294, avg=178.69, stdev=37.55 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 108], 10.00th=[ 121], 20.00th=[ 134], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 259], 99.50th=[ 264], 99.90th=[ 268], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 110, max= 260, per=24.80%, avg=175.80, stdev=34.36, samples=56 iops : min= 27, max= 65, avg=43.46, stdev= 8.60, samples=56 write: IOPS=46, BW=186KiB/s (190kB/s)(5256KiB/28274msec); 0 zone resets slat (usec): min=29, max=14779, avg=256.91, stdev=681.92 clat (msec): min=23, max=287, avg=172.54, stdev=35.33 lat (msec): min=23, max=288, avg=172.80, stdev=35.33 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 115], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 232], | 99.00th=[ 251], 99.50th=[ 257], 99.90th=[ 275], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 118, max= 247, per=25.03%, avg=184.71, stdev=34.43, samples=56 iops : min= 29, max= 61, avg=45.70, stdev= 8.64, samples=56 lat (msec) : 50=0.04%, 100=2.73%, 250=95.82%, 500=1.41% cpu : usr=0.31%, sys=2.15%, ctx=4438, 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=183100: Sun Nov 16 19:17:07 2025 read: IOPS=44, BW=179KiB/s (183kB/s)(5060KiB/28303msec) slat (usec): min=3209, max=49797, avg=12585.79, stdev=5285.42 clat (msec): min=24, max=298, avg=166.13, stdev=37.48 lat (msec): min=32, max=314, avg=178.72, stdev=38.52 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 108], 10.00th=[ 123], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 232], | 99.00th=[ 253], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 95, max= 271, per=25.12%, avg=178.09, stdev=35.31, samples=56 iops : min= 23, max= 67, avg=44.04, stdev= 8.85, samples=56 write: IOPS=45, BW=183KiB/s (187kB/s)(5180KiB/28303msec); 0 zone resets slat (usec): min=31, max=33192, avg=272.95, stdev=1078.74 clat (msec): min=37, max=275, avg=172.99, stdev=35.80 lat (msec): min=37, max=275, avg=173.26, stdev=35.80 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 114], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 234], | 99.00th=[ 257], 99.50th=[ 266], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 96, max= 255, per=24.56%, avg=181.25, stdev=35.50, samples=56 iops : min= 24, max= 63, avg=44.82, stdev= 8.86, samples=56 lat (msec) : 50=0.27%, 100=2.50%, 250=95.78%, 500=1.45% cpu : usr=0.30%, sys=2.05%, ctx=4499, 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=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=709KiB/s (726kB/s), 176KiB/s-179KiB/s (180kB/s-183kB/s), io=19.6MiB (20.5MB), run=28194-28303msec WRITE: bw=738KiB/s (756kB/s), 183KiB/s-186KiB/s (187kB/s-191kB/s), io=20.4MiB (21.4MB), run=28194-28303msec 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=183108: Sun Nov 16 19:17:18 2025 read: IOPS=1, BW=78.3MiB/s (82.1MB/s)(40.0MiB/511msec) slat (nsec): min=45505k, max=45505k, avg=45504956.00, stdev= 0.00 clat (nsec): min=422179k, max=422179k, avg=422178563.00, stdev= 0.00 lat (nsec): min=467690k, max=467690k, avg=467690419.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.20%, sys=2.75%, ctx=11, 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=78.3MiB/s (82.1MB/s), 78.3MiB/s-78.3MiB/s (82.1MB/s-82.1MB/s), io=40.0MiB (41.9MB), run=511-511msec 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