== sanity test 398c: run fio to test AIO ================= 12:40:10 (1787848810) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.599095 s, 70.0 MB/s osc.lustre-OST0000-osc-ffff92359117c000.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=180293: Thu Aug 27 12:40:48 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28613msec); 0 zone resets slat (usec): min=23, max=18984, avg=158.43, stdev=689.47 clat (msec): min=15, max=377, avg=178.46, stdev=59.72 lat (msec): min=15, max=378, avg=178.62, stdev=59.76 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 100], 10.00th=[ 114], 20.00th=[ 131], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 182], | 70.00th=[ 203], 80.00th=[ 226], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 355], 99.50th=[ 363], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 380] bw ( KiB/s): min= 246, max= 624, per=24.89%, avg=355.93, stdev=101.42, samples=56 iops : min= 61, max= 156, avg=88.68, stdev=25.41, samples=56 lat (msec) : 20=0.04%, 50=0.08%, 100=5.82%, 250=80.47%, 500=13.59% cpu : usr=0.10%, sys=0.76%, ctx=1933, 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=180294: Thu Aug 27 12:40:48 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28639msec); 0 zone resets slat (usec): min=23, max=23018, avg=196.81, stdev=842.58 clat (msec): min=41, max=372, avg=178.37, stdev=58.86 lat (msec): min=41, max=372, avg=178.57, stdev=58.89 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 102], 10.00th=[ 115], 20.00th=[ 129], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 167], 60.00th=[ 184], | 70.00th=[ 203], 80.00th=[ 228], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 330], 99.50th=[ 355], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 183, max= 616, per=24.85%, avg=355.41, stdev=97.63, samples=56 iops : min= 45, max= 154, avg=88.55, stdev=24.49, samples=56 lat (msec) : 50=0.12%, 100=4.69%, 250=81.33%, 500=13.87% cpu : usr=0.18%, sys=1.02%, ctx=2877, 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=180295: Thu Aug 27 12:40:48 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28627msec); 0 zone resets slat (usec): min=21, max=25373, avg=175.74, stdev=854.93 clat (msec): min=15, max=360, avg=178.54, stdev=58.12 lat (msec): min=15, max=360, avg=178.72, stdev=58.15 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 99], 10.00th=[ 116], 20.00th=[ 130], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 184], | 70.00th=[ 201], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 347], 99.50th=[ 347], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 135, max= 648, per=24.94%, avg=356.61, stdev=112.35, samples=56 iops : min= 33, max= 162, avg=88.86, stdev=28.19, samples=56 lat (msec) : 20=0.04%, 50=0.04%, 100=5.08%, 250=78.40%, 500=16.45% cpu : usr=0.12%, sys=0.72%, ctx=2066, 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=180296: Thu Aug 27 12:40:48 2026 write: IOPS=89, BW=358KiB/s (366kB/s)(10.0MiB/28620msec); 0 zone resets slat (usec): min=22, max=19072, avg=168.67, stdev=712.71 clat (msec): min=18, max=372, avg=178.57, stdev=58.48 lat (msec): min=18, max=372, avg=178.74, stdev=58.47 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 99], 10.00th=[ 114], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 182], | 70.00th=[ 199], 80.00th=[ 230], 90.00th=[ 264], 95.00th=[ 296], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 355], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 135, max= 600, per=24.89%, avg=355.96, stdev=103.17, samples=56 iops : min= 33, max= 150, avg=88.70, stdev=25.89, samples=56 lat (msec) : 20=0.04%, 50=0.12%, 100=5.00%, 250=81.72%, 500=13.12% cpu : usr=0.17%, sys=0.80%, ctx=1916, 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=1430KiB/s (1465kB/s), 358KiB/s-358KiB/s (366kB/s-366kB/s), io=40.0MiB (41.9MB), run=28613-28639msec 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=180311: Thu Aug 27 12:41:34 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5048KiB/35596msec) slat (usec): min=51, max=94505, avg=15689.27, stdev=10085.63 clat (msec): min=25, max=446, avg=210.28, stdev=60.71 lat (msec): min=40, max=457, avg=225.98, stdev=63.85 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 115], 10.00th=[ 136], 20.00th=[ 159], | 30.00th=[ 176], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 414], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 63, max= 216, per=25.19%, avg=141.56, stdev=32.56, samples=70 iops : min= 15, max= 54, avg=34.90, stdev= 8.20, samples=70 write: IOPS=36, BW=146KiB/s (149kB/s)(5192KiB/35596msec); 0 zone resets slat (usec): min=25, max=23951, avg=220.05, stdev=890.80 clat (msec): min=46, max=432, avg=216.19, stdev=60.92 lat (msec): min=46, max=432, avg=216.41, stdev=60.91 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 118], 10.00th=[ 140], 20.00th=[ 163], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 213], 60.00th=[ 230], | 70.00th=[ 251], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 401], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 39, max= 320, per=24.98%, avg=146.11, stdev=49.84, samples=70 iops : min= 9, max= 80, avg=36.03, stdev=12.50, samples=70 lat (msec) : 50=0.27%, 100=1.29%, 250=71.29%, 500=27.15% cpu : usr=0.30%, sys=1.62%, ctx=4174, 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=180312: Thu Aug 27 12:41:34 2026 read: IOPS=34, BW=140KiB/s (143kB/s)(4976KiB/35652msec) slat (usec): min=2188, max=99135, avg=16234.76, stdev=10507.72 clat (msec): min=42, max=422, avg=209.50, stdev=59.29 lat (msec): min=56, max=436, avg=225.74, stdev=62.20 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 117], 10.00th=[ 136], 20.00th=[ 159], | 30.00th=[ 176], 40.00th=[ 190], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 31, max= 242, per=24.81%, avg=139.43, stdev=43.73, samples=70 iops : min= 7, max= 60, avg=34.36, stdev=10.98, samples=70 write: IOPS=36, BW=148KiB/s (151kB/s)(5264KiB/35652msec); 0 zone resets slat (usec): min=31, max=9978, avg=206.65, stdev=625.74 clat (msec): min=75, max=427, avg=215.87, stdev=59.42 lat (msec): min=75, max=427, avg=216.08, stdev=59.43 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 124], 10.00th=[ 142], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 300], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 397], 99.90th=[ 426], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 87, max= 264, per=25.28%, avg=147.89, stdev=41.44, samples=70 iops : min= 21, max= 66, avg=36.49, stdev=10.42, samples=70 lat (msec) : 50=0.04%, 100=1.45%, 250=72.89%, 500=25.62% cpu : usr=0.34%, sys=1.68%, ctx=4348, 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=180313: Thu Aug 27 12:41:34 2026 read: IOPS=35, BW=141KiB/s (145kB/s)(4984KiB/35313msec) slat (usec): min=37, max=111442, avg=15708.11, stdev=10550.16 clat (msec): min=35, max=435, avg=209.54, stdev=61.98 lat (msec): min=35, max=457, avg=225.26, stdev=64.99 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 132], 20.00th=[ 157], | 30.00th=[ 176], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 224], | 70.00th=[ 241], 80.00th=[ 259], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 435], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 79, max= 287, per=25.08%, avg=140.97, stdev=40.54, samples=69 iops : min= 19, max= 71, avg=34.75, stdev=10.20, samples=69 write: IOPS=37, BW=149KiB/s (152kB/s)(5256KiB/35313msec); 0 zone resets slat (usec): min=25, max=11684, avg=205.08, stdev=697.10 clat (msec): min=80, max=404, avg=215.72, stdev=59.58 lat (msec): min=80, max=404, avg=215.93, stdev=59.59 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 121], 10.00th=[ 138], 20.00th=[ 163], | 30.00th=[ 184], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 359], 99.50th=[ 368], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 63, max= 256, per=25.31%, avg=148.09, stdev=44.89, samples=69 iops : min= 15, max= 64, avg=36.52, stdev=11.27, samples=69 lat (msec) : 50=0.12%, 100=1.64%, 250=70.78%, 500=27.46% cpu : usr=0.24%, sys=1.62%, ctx=4216, 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=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=180314: Thu Aug 27 12:41:34 2026 read: IOPS=35, BW=142KiB/s (145kB/s)(5060KiB/35666msec) slat (usec): min=64, max=65162, avg=15859.21, stdev=10012.63 clat (msec): min=74, max=427, avg=210.35, stdev=61.14 lat (msec): min=81, max=455, avg=226.21, stdev=64.26 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 115], 10.00th=[ 133], 20.00th=[ 159], | 30.00th=[ 176], 40.00th=[ 192], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 241], 80.00th=[ 262], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 397], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 56, max= 288, per=25.22%, avg=141.73, stdev=41.27, samples=70 iops : min= 14, max= 72, avg=34.93, stdev=10.36, samples=70 write: IOPS=36, BW=145KiB/s (149kB/s)(5180KiB/35666msec); 0 zone resets slat (usec): min=24, max=31235, avg=263.23, stdev=1293.07 clat (msec): min=80, max=397, avg=215.91, stdev=57.46 lat (msec): min=81, max=397, avg=216.18, stdev=57.53 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 126], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 182], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 245], 80.00th=[ 264], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 355], 99.50th=[ 368], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 69, max= 255, per=24.73%, avg=144.64, stdev=40.15, samples=70 iops : min= 17, max= 63, avg=35.66, stdev=10.07, samples=70 lat (msec) : 100=1.68%, 250=72.70%, 500=25.62% cpu : usr=0.31%, sys=1.69%, ctx=4245, 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=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=563KiB/s (576kB/s), 140KiB/s-142KiB/s (143kB/s-145kB/s), io=19.6MiB (20.5MB), run=35313-35666msec WRITE: bw=586KiB/s (600kB/s), 145KiB/s-149KiB/s (149kB/s-152kB/s), io=20.4MiB (21.4MB), run=35313-35666msec 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=180324: Thu Aug 27 12:41:48 2026 read: IOPS=1, BW=57.3MiB/s (60.1MB/s)(40.0MiB/698msec) slat (nsec): min=54818k, max=54818k, avg=54817530.00, stdev= 0.00 clat (nsec): min=601839k, max=601839k, avg=601839181.00, stdev= 0.00 lat (nsec): min=656689k, max=656689k, avg=656688888.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 600], 5.00th=[ 600], 10.00th=[ 600], 20.00th=[ 600], | 30.00th=[ 600], 40.00th=[ 600], 50.00th=[ 600], 60.00th=[ 600], | 70.00th=[ 600], 80.00th=[ 600], 90.00th=[ 600], 95.00th=[ 600], | 99.00th=[ 600], 99.50th=[ 600], 99.90th=[ 600], 99.95th=[ 600], | 99.99th=[ 600] lat (msec) : 750=100.00% cpu : usr=0.57%, sys=2.15%, ctx=9, majf=0, minf=10 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=57.3MiB/s (60.1MB/s), 57.3MiB/s-57.3MiB/s (60.1MB/s-60.1MB/s), io=40.0MiB (41.9MB), run=698-698msec 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