== sanity test 398c: run fio to test AIO ================= 10:05:56 (1788530756) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.540585 s, 77.6 MB/s osc.lustre-OST0000-osc-ffff980c0303f000.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=178595: Fri Sep 4 10:06:38 2026 write: IOPS=90, BW=361KiB/s (370kB/s)(10.0MiB/28353msec); 0 zone resets slat (usec): min=38, max=20797, avg=353.09, stdev=1089.16 clat (msec): min=22, max=413, avg=176.65, stdev=48.27 lat (msec): min=22, max=414, avg=177.00, stdev=48.26 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 120], 10.00th=[ 127], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 213], 90.00th=[ 234], 95.00th=[ 266], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 372], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 175, max= 514, per=25.20%, avg=361.16, stdev=79.07, samples=55 iops : min= 43, max= 128, avg=89.93, stdev=19.75, samples=55 lat (msec) : 50=0.08%, 100=1.45%, 250=91.09%, 500=7.38% cpu : usr=0.23%, sys=1.31%, ctx=2707, 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=178596: Fri Sep 4 10:06:38 2026 write: IOPS=89, BW=358KiB/s (367kB/s)(10.0MiB/28567msec); 0 zone resets slat (usec): min=39, max=21955, avg=335.23, stdev=1141.16 clat (msec): min=27, max=370, avg=177.06, stdev=46.38 lat (msec): min=28, max=371, avg=177.40, stdev=46.42 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 122], 10.00th=[ 129], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 342], 99.50th=[ 351], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 372] bw ( KiB/s): min= 188, max= 539, per=25.03%, avg=358.66, stdev=84.89, samples=56 iops : min= 47, max= 134, avg=89.30, stdev=21.20, samples=56 lat (msec) : 50=0.12%, 100=0.90%, 250=92.07%, 500=6.91% cpu : usr=0.21%, sys=1.26%, ctx=2396, 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=178597: Fri Sep 4 10:06:38 2026 write: IOPS=89, BW=359KiB/s (368kB/s)(10.0MiB/28524msec); 0 zone resets slat (usec): min=38, max=15039, avg=270.81, stdev=773.88 clat (msec): min=16, max=368, avg=177.12, stdev=46.61 lat (msec): min=16, max=368, avg=177.40, stdev=46.63 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 120], 10.00th=[ 127], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 262], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 245, max= 530, per=25.05%, avg=359.02, stdev=79.88, samples=56 iops : min= 61, max= 132, avg=89.37, stdev=19.95, samples=56 lat (msec) : 20=0.04%, 50=0.08%, 100=0.16%, 250=92.70%, 500=7.03% cpu : usr=0.14%, sys=1.16%, ctx=1797, 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=178598: Fri Sep 4 10:06:38 2026 write: IOPS=89, BW=359KiB/s (367kB/s)(10.0MiB/28560msec); 0 zone resets slat (usec): min=37, max=13957, avg=302.51, stdev=811.54 clat (msec): min=34, max=386, avg=176.71, stdev=46.79 lat (msec): min=35, max=387, avg=177.01, stdev=46.76 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 120], 10.00th=[ 126], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 234], 95.00th=[ 268], | 99.00th=[ 330], 99.50th=[ 342], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 388] bw ( KiB/s): min= 175, max= 554, per=25.05%, avg=359.02, stdev=83.07, samples=56 iops : min= 43, max= 138, avg=89.39, stdev=20.78, samples=56 lat (msec) : 50=0.04%, 100=0.31%, 250=92.38%, 500=7.27% cpu : usr=0.17%, sys=1.26%, ctx=2237, 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=1434KiB/s (1468kB/s), 358KiB/s-361KiB/s (367kB/s-370kB/s), io=40.0MiB (41.9MB), run=28353-28567msec 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=178612: Fri Sep 4 10:07:19 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(5048KiB/32606msec) slat (usec): min=53, max=94742, avg=14962.41, stdev=9298.44 clat (msec): min=8, max=418, avg=193.18, stdev=62.77 lat (msec): min=10, max=463, avg=208.15, stdev=65.82 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 213], 80.00th=[ 245], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 62, max= 238, per=25.16%, avg=154.25, stdev=42.23, samples=64 iops : min= 15, max= 59, avg=38.12, stdev=10.62, samples=64 write: IOPS=39, BW=159KiB/s (163kB/s)(5192KiB/32606msec); 0 zone resets slat (usec): min=55, max=22528, avg=354.78, stdev=1087.32 clat (msec): min=58, max=444, avg=197.94, stdev=63.13 lat (msec): min=58, max=444, avg=198.30, stdev=63.14 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 249], 90.00th=[ 288], 95.00th=[ 321], | 99.00th=[ 409], 99.50th=[ 426], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 71, max= 296, per=24.86%, avg=158.84, stdev=49.31, samples=64 iops : min= 17, max= 74, avg=39.27, stdev=12.44, samples=64 lat (msec) : 10=0.04%, 20=0.08%, 50=0.04%, 100=1.56%, 250=79.18% lat (msec) : 500=19.10% cpu : usr=0.33%, sys=2.14%, ctx=4273, 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=178613: Fri Sep 4 10:07:19 2026 read: IOPS=38, BW=152KiB/s (156kB/s)(4976KiB/32634msec) slat (usec): min=35, max=73372, avg=15033.86, stdev=9778.35 clat (msec): min=77, max=437, avg=193.42, stdev=61.26 lat (msec): min=82, max=484, avg=208.47, stdev=64.72 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 218], 80.00th=[ 243], 90.00th=[ 279], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 71, max= 248, per=24.69%, avg=151.33, stdev=45.23, samples=64 iops : min= 17, max= 62, avg=37.39, stdev=11.40, samples=64 write: IOPS=40, BW=161KiB/s (165kB/s)(5264KiB/32634msec); 0 zone resets slat (usec): min=34, max=15883, avg=367.28, stdev=944.35 clat (msec): min=32, max=457, avg=198.01, stdev=62.19 lat (msec): min=32, max=460, avg=198.37, stdev=62.20 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 122], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 220], 80.00th=[ 247], 90.00th=[ 296], 95.00th=[ 321], | 99.00th=[ 368], 99.50th=[ 397], 99.90th=[ 456], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 71, max= 282, per=25.21%, avg=161.08, stdev=50.33, samples=64 iops : min= 17, max= 70, avg=39.83, stdev=12.70, samples=64 lat (msec) : 50=0.04%, 100=1.64%, 250=79.73%, 500=18.59% cpu : usr=0.29%, sys=2.07%, ctx=4316, 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=178614: Fri Sep 4 10:07:19 2026 read: IOPS=38, BW=154KiB/s (157kB/s)(4984KiB/32404msec) slat (usec): min=58, max=72026, avg=14675.49, stdev=9198.67 clat (msec): min=12, max=423, avg=188.92, stdev=58.38 lat (msec): min=22, max=435, avg=203.60, stdev=61.47 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 209], 80.00th=[ 234], 90.00th=[ 275], 95.00th=[ 305], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 401], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 70, max= 288, per=25.06%, avg=153.61, stdev=50.77, samples=64 iops : min= 17, max= 72, avg=37.95, stdev=12.78, samples=64 write: IOPS=40, BW=162KiB/s (166kB/s)(5256KiB/32404msec); 0 zone resets slat (usec): min=43, max=20412, avg=429.00, stdev=1351.89 clat (msec): min=63, max=480, avg=200.65, stdev=62.78 lat (msec): min=64, max=480, avg=201.08, stdev=62.80 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 120], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 163], 40.00th=[ 176], 50.00th=[ 190], 60.00th=[ 205], | 70.00th=[ 222], 80.00th=[ 255], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 405], 99.90th=[ 468], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 79, max= 261, per=25.22%, avg=161.14, stdev=45.59, samples=64 iops : min= 19, max= 65, avg=39.84, stdev=11.53, samples=64 lat (msec) : 20=0.04%, 50=0.12%, 100=1.72%, 250=79.61%, 500=18.52% cpu : usr=0.28%, sys=2.20%, ctx=4408, majf=0, minf=15 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=178615: Fri Sep 4 10:07:19 2026 read: IOPS=38, BW=155KiB/s (158kB/s)(5060KiB/32693msec) slat (usec): min=2939, max=73154, avg=15244.12, stdev=9102.36 clat (msec): min=14, max=437, avg=194.51, stdev=62.33 lat (msec): min=45, max=459, avg=209.76, stdev=65.15 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 115], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 197], | 70.00th=[ 218], 80.00th=[ 247], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 384], 99.50th=[ 401], 99.90th=[ 435], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 55, max= 261, per=25.09%, avg=153.81, stdev=44.90, samples=64 iops : min= 13, max= 65, avg=38.03, stdev=11.32, samples=64 write: IOPS=39, BW=158KiB/s (162kB/s)(5180KiB/32693msec); 0 zone resets slat (usec): min=54, max=25015, avg=391.45, stdev=1261.77 clat (msec): min=32, max=466, avg=196.27, stdev=61.52 lat (msec): min=32, max=466, avg=196.67, stdev=61.59 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 130], 20.00th=[ 144], | 30.00th=[ 159], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 199], | 70.00th=[ 220], 80.00th=[ 247], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 372], 99.50th=[ 397], 99.90th=[ 464], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 55, max= 280, per=24.60%, avg=157.20, stdev=51.64, samples=64 iops : min= 13, max= 70, avg=38.84, stdev=13.00, samples=64 lat (msec) : 20=0.04%, 50=0.04%, 100=1.45%, 250=79.80%, 500=18.67% cpu : usr=0.34%, sys=2.28%, ctx=4505, 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=614KiB/s (629kB/s), 152KiB/s-155KiB/s (156kB/s-159kB/s), io=19.6MiB (20.5MB), run=32404-32693msec WRITE: bw=639KiB/s (654kB/s), 158KiB/s-162KiB/s (162kB/s-166kB/s), io=20.4MiB (21.4MB), run=32404-32693msec 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=178624: Fri Sep 4 10:07:30 2026 read: IOPS=1, BW=62.8MiB/s (65.8MB/s)(40.0MiB/637msec) slat (nsec): min=65354k, max=65354k, avg=65354256.00, stdev= 0.00 clat (nsec): min=541064k, max=541064k, avg=541064052.00, stdev= 0.00 lat (nsec): min=606425k, max=606425k, avg=606425245.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 542], 10.00th=[ 542], 20.00th=[ 542], | 30.00th=[ 542], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 542], 80.00th=[ 542], 90.00th=[ 542], 95.00th=[ 542], | 99.00th=[ 542], 99.50th=[ 542], 99.90th=[ 542], 99.95th=[ 542], | 99.99th=[ 542] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.04%, ctx=5, 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=62.8MiB/s (65.8MB/s), 62.8MiB/s-62.8MiB/s (65.8MB/s-65.8MB/s), io=40.0MiB (41.9MB), run=637-637msec 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