== sanity test 398c: run fio to test AIO ================= 16:26:34 (1786739194) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.566897 s, 74.0 MB/s osc.lustre-OST0000-osc-ffff8b8039b17800.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=179973: Fri Aug 14 16:27:14 2026 write: IOPS=88, BW=354KiB/s (362kB/s)(10.0MiB/28936msec); 0 zone resets slat (usec): min=53, max=11677, avg=361.68, stdev=865.29 clat (msec): min=24, max=407, avg=179.70, stdev=46.68 lat (msec): min=25, max=408, avg=180.06, stdev=46.68 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 118], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 241], 95.00th=[ 271], | 99.00th=[ 342], 99.50th=[ 347], 99.90th=[ 380], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 175, max= 505, per=24.91%, avg=352.49, stdev=68.71, samples=57 iops : min= 43, max= 126, avg=87.74, stdev=17.28, samples=57 lat (msec) : 50=0.27%, 100=0.23%, 250=91.60%, 500=7.89% cpu : usr=0.16%, sys=1.29%, ctx=2893, 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=179974: Fri Aug 14 16:27:14 2026 write: IOPS=88, BW=354KiB/s (363kB/s)(10.0MiB/28907msec); 0 zone resets slat (usec): min=42, max=19661, avg=337.92, stdev=966.17 clat (msec): min=89, max=348, avg=179.74, stdev=43.95 lat (msec): min=89, max=348, avg=180.08, stdev=43.94 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 234], 95.00th=[ 259], | 99.00th=[ 317], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 207, max= 508, per=24.96%, avg=353.18, stdev=71.11, samples=57 iops : min= 51, max= 127, avg=87.95, stdev=17.83, samples=57 lat (msec) : 100=0.90%, 250=92.54%, 500=6.56% cpu : usr=0.19%, sys=1.19%, ctx=2636, 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=179975: Fri Aug 14 16:27:14 2026 write: IOPS=88, BW=356KiB/s (364kB/s)(10.0MiB/28804msec); 0 zone resets slat (usec): min=44, max=22955, avg=333.66, stdev=882.92 clat (msec): min=24, max=348, avg=179.48, stdev=46.05 lat (msec): min=25, max=348, avg=179.82, stdev=46.08 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 116], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 271], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 199, max= 463, per=25.06%, avg=354.61, stdev=64.74, samples=57 iops : min= 49, max= 115, avg=88.30, stdev=16.25, samples=57 lat (msec) : 50=0.35%, 100=0.94%, 250=91.80%, 500=6.91% cpu : usr=0.14%, sys=1.30%, ctx=2880, 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=179976: Fri Aug 14 16:27:14 2026 write: IOPS=88, BW=354KiB/s (362kB/s)(10.0MiB/28941msec); 0 zone resets slat (usec): min=45, max=13444, avg=334.27, stdev=833.42 clat (msec): min=22, max=406, avg=179.63, stdev=45.32 lat (msec): min=22, max=407, avg=179.97, stdev=45.32 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 120], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 405] bw ( KiB/s): min= 158, max= 521, per=24.85%, avg=351.58, stdev=73.92, samples=57 iops : min= 39, max= 130, avg=87.53, stdev=18.53, samples=57 lat (msec) : 50=0.27%, 100=0.35%, 250=93.01%, 500=6.37% cpu : usr=0.15%, sys=1.07%, ctx=2593, 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=1415KiB/s (1449kB/s), 354KiB/s-356KiB/s (362kB/s-364kB/s), io=40.0MiB (41.9MB), run=28804-28941msec 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=179991: Fri Aug 14 16:28:02 2026 read: IOPS=33, BW=133KiB/s (136kB/s)(5048KiB/37906msec) slat (usec): min=55, max=78342, avg=16050.19, stdev=9296.42 clat (msec): min=86, max=463, avg=225.39, stdev=58.21 lat (msec): min=110, max=490, avg=241.45, stdev=60.23 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 144], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 205], 50.00th=[ 220], 60.00th=[ 234], | 70.00th=[ 251], 80.00th=[ 275], 90.00th=[ 300], 95.00th=[ 330], | 99.00th=[ 397], 99.50th=[ 422], 99.90th=[ 451], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 71, max= 208, per=25.08%, avg=132.68, stdev=31.16, samples=75 iops : min= 17, max= 52, avg=32.73, stdev= 7.74, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5192KiB/37906msec); 0 zone resets slat (usec): min=55, max=13430, avg=336.88, stdev=880.04 clat (msec): min=94, max=474, avg=231.65, stdev=55.20 lat (msec): min=94, max=475, avg=231.99, stdev=55.23 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 184], | 30.00th=[ 199], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 243], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 393], 99.50th=[ 409], 99.90th=[ 435], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 77, max= 205, per=24.80%, avg=136.65, stdev=33.18, samples=75 iops : min= 19, max= 51, avg=33.75, stdev= 8.26, samples=75 lat (msec) : 100=0.20%, 250=66.99%, 500=32.81% cpu : usr=0.20%, sys=1.69%, ctx=4513, 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=179992: Fri Aug 14 16:28:02 2026 read: IOPS=33, BW=133KiB/s (136kB/s)(4976KiB/37539msec) slat (usec): min=2382, max=79533, avg=16288.96, stdev=8943.31 clat (msec): min=22, max=466, avg=222.15, stdev=56.08 lat (msec): min=28, max=481, avg=238.45, stdev=57.90 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 228], | 70.00th=[ 245], 80.00th=[ 271], 90.00th=[ 305], 95.00th=[ 326], | 99.00th=[ 368], 99.50th=[ 376], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 55, max= 207, per=24.92%, avg=131.81, stdev=35.22, samples=74 iops : min= 13, max= 51, avg=32.53, stdev= 8.82, samples=74 write: IOPS=35, BW=140KiB/s (144kB/s)(5264KiB/37539msec); 0 zone resets slat (usec): min=51, max=12638, avg=339.26, stdev=809.95 clat (msec): min=73, max=434, avg=229.02, stdev=54.55 lat (msec): min=74, max=435, avg=229.37, stdev=54.61 clat percentiles (msec): | 1.00th=[ 131], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 211], 50.00th=[ 224], 60.00th=[ 236], | 70.00th=[ 255], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 330], | 99.00th=[ 363], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 72, max= 269, per=25.44%, avg=140.18, stdev=36.58, samples=74 iops : min= 18, max= 67, avg=34.62, stdev= 9.08, samples=74 lat (msec) : 50=0.08%, 100=0.27%, 250=69.26%, 500=30.39% cpu : usr=0.27%, sys=1.70%, ctx=4612, 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=179993: Fri Aug 14 16:28:02 2026 read: IOPS=32, BW=131KiB/s (135kB/s)(4984KiB/37915msec) slat (usec): min=3130, max=78725, avg=16268.67, stdev=9304.31 clat (msec): min=93, max=486, avg=223.41, stdev=56.46 lat (msec): min=107, max=498, avg=239.69, stdev=58.30 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 144], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 271], 90.00th=[ 300], 95.00th=[ 321], | 99.00th=[ 380], 99.50th=[ 409], 99.90th=[ 468], 99.95th=[ 485], | 99.99th=[ 485] bw ( KiB/s): min= 55, max= 253, per=24.80%, avg=131.21, stdev=36.86, samples=75 iops : min= 13, max= 63, avg=32.37, stdev= 9.21, samples=75 write: IOPS=34, BW=139KiB/s (142kB/s)(5256KiB/37915msec); 0 zone resets slat (usec): min=55, max=15399, avg=367.88, stdev=923.12 clat (msec): min=104, max=495, avg=231.49, stdev=56.42 lat (msec): min=104, max=495, avg=231.86, stdev=56.40 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 153], 10.00th=[ 165], 20.00th=[ 184], | 30.00th=[ 197], 40.00th=[ 211], 50.00th=[ 226], 60.00th=[ 241], | 70.00th=[ 257], 80.00th=[ 275], 90.00th=[ 305], 95.00th=[ 334], | 99.00th=[ 393], 99.50th=[ 430], 99.90th=[ 498], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 71, max= 216, per=24.99%, avg=137.71, stdev=35.09, samples=75 iops : min= 17, max= 54, avg=33.99, stdev= 8.73, samples=75 lat (msec) : 100=0.04%, 250=68.24%, 500=31.72% cpu : usr=0.26%, sys=1.73%, ctx=4444, 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=179994: Fri Aug 14 16:28:02 2026 read: IOPS=33, BW=133KiB/s (137kB/s)(5060KiB/37909msec) slat (usec): min=3666, max=68841, avg=16447.06, stdev=9304.90 clat (msec): min=64, max=447, avg=222.67, stdev=54.45 lat (msec): min=79, max=461, avg=239.12, stdev=56.44 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 146], 10.00th=[ 159], 20.00th=[ 178], | 30.00th=[ 190], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 232], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 393], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 54, max= 199, per=25.15%, avg=133.03, stdev=33.16, samples=75 iops : min= 13, max= 49, avg=32.83, stdev= 8.27, samples=75 write: IOPS=34, BW=137KiB/s (140kB/s)(5180KiB/37909msec); 0 zone resets slat (usec): min=41, max=16954, avg=342.80, stdev=895.83 clat (msec): min=111, max=435, avg=231.81, stdev=52.81 lat (msec): min=111, max=436, avg=232.16, stdev=52.82 clat percentiles (msec): | 1.00th=[ 133], 5.00th=[ 155], 10.00th=[ 169], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 213], 50.00th=[ 224], 60.00th=[ 239], | 70.00th=[ 257], 80.00th=[ 279], 90.00th=[ 305], 95.00th=[ 326], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 430], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 54, max= 231, per=24.73%, avg=136.25, stdev=36.11, samples=75 iops : min= 13, max= 57, avg=33.64, stdev= 9.01, samples=75 lat (msec) : 100=0.08%, 250=68.40%, 500=31.52% cpu : usr=0.20%, sys=1.70%, ctx=4205, 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=529KiB/s (542kB/s), 131KiB/s-133KiB/s (135kB/s-137kB/s), io=19.6MiB (20.5MB), run=37539-37915msec WRITE: bw=551KiB/s (564kB/s), 137KiB/s-140KiB/s (140kB/s-144kB/s), io=20.4MiB (21.4MB), run=37539-37915msec 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=180003: Fri Aug 14 16:28:12 2026 read: IOPS=2, BW=91.0MiB/s (96.4MB/s)(40.0MiB/435msec) slat (nsec): min=22373k, max=22373k, avg=22372881.00, stdev= 0.00 clat (nsec): min=387402k, max=387402k, avg=387402059.00, stdev= 0.00 lat (nsec): min=409780k, max=409780k, avg=409779697.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] lat (msec) : 500=100.00% cpu : usr=0.23%, sys=3.46%, ctx=4, 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=91.0MiB/s (96.4MB/s), 91.0MiB/s-91.0MiB/s (96.4MB/s-96.4MB/s), io=40.0MiB (41.9MB), run=435-435msec 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