== sanity test 398c: run fio to test AIO ================= 12:17:36 (1772471856) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.642249 s, 65.3 MB/s osc.lustre-OST0000-osc-ffff9ef4afffc000.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=184418: Mon Mar 2 12:18:18 2026 write: IOPS=78, BW=315KiB/s (323kB/s)(10.0MiB/32501msec); 0 zone resets slat (usec): min=21, max=18190, avg=163.56, stdev=824.70 clat (msec): min=22, max=496, avg=202.84, stdev=63.78 lat (msec): min=22, max=496, avg=203.01, stdev=63.78 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 97], 10.00th=[ 124], 20.00th=[ 150], | 30.00th=[ 167], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 259], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 363], 99.50th=[ 409], 99.90th=[ 481], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 143, max= 768, per=24.94%, avg=314.02, stdev=100.37, samples=64 iops : min= 35, max= 192, avg=78.11, stdev=25.21, samples=64 lat (msec) : 50=0.04%, 100=6.13%, 250=71.29%, 500=22.54% cpu : usr=0.09%, sys=0.74%, ctx=1985, 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=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=184419: Mon Mar 2 12:18:18 2026 write: IOPS=78, BW=315KiB/s (322kB/s)(10.0MiB/32532msec); 0 zone resets slat (usec): min=22, max=19261, avg=168.47, stdev=719.01 clat (msec): min=23, max=505, avg=202.80, stdev=64.38 lat (msec): min=23, max=505, avg=202.97, stdev=64.38 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 96], 10.00th=[ 122], 20.00th=[ 148], | 30.00th=[ 167], 40.00th=[ 190], 50.00th=[ 205], 60.00th=[ 220], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 309], | 99.00th=[ 342], 99.50th=[ 477], 99.90th=[ 506], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 127, max= 768, per=24.86%, avg=313.02, stdev=96.21, samples=64 iops : min= 31, max= 192, avg=77.86, stdev=24.16, samples=64 lat (msec) : 50=0.12%, 100=5.82%, 250=74.02%, 500=19.77%, 750=0.27% cpu : usr=0.11%, sys=0.72%, ctx=2175, 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=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=184420: Mon Mar 2 12:18:18 2026 write: IOPS=78, BW=315KiB/s (323kB/s)(10.0MiB/32476msec); 0 zone resets slat (usec): min=21, max=13184, avg=140.27, stdev=580.12 clat (msec): min=45, max=488, avg=202.64, stdev=63.51 lat (msec): min=45, max=488, avg=202.78, stdev=63.51 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 92], 10.00th=[ 124], 20.00th=[ 146], | 30.00th=[ 165], 40.00th=[ 188], 50.00th=[ 203], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 259], 90.00th=[ 275], 95.00th=[ 296], | 99.00th=[ 363], 99.50th=[ 414], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 135, max= 648, per=24.93%, avg=313.92, stdev=102.58, samples=64 iops : min= 33, max= 162, avg=78.09, stdev=25.76, samples=64 lat (msec) : 50=0.08%, 100=5.74%, 250=71.45%, 500=22.73% cpu : usr=0.11%, sys=0.57%, ctx=1327, 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=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=184421: Mon Mar 2 12:18:18 2026 write: IOPS=78, BW=316KiB/s (323kB/s)(10.0MiB/32438msec); 0 zone resets slat (usec): min=20, max=25413, avg=173.33, stdev=798.69 clat (msec): min=18, max=464, avg=202.41, stdev=62.98 lat (msec): min=18, max=464, avg=202.59, stdev=63.01 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 90], 10.00th=[ 125], 20.00th=[ 148], | 30.00th=[ 169], 40.00th=[ 186], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 255], 90.00th=[ 279], 95.00th=[ 296], | 99.00th=[ 342], 99.50th=[ 443], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 464] bw ( KiB/s): min= 143, max= 760, per=24.94%, avg=313.97, stdev=100.28, samples=64 iops : min= 35, max= 190, avg=78.11, stdev=25.20, samples=64 lat (msec) : 20=0.04%, 50=0.12%, 100=5.98%, 250=72.07%, 500=21.80% cpu : usr=0.13%, sys=0.63%, ctx=2175, 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=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=1259KiB/s (1289kB/s), 315KiB/s-316KiB/s (322kB/s-323kB/s), io=40.0MiB (41.9MB), run=32438-32532msec 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=184436: Mon Mar 2 12:18:58 2026 read: IOPS=41, BW=168KiB/s (172kB/s)(5048KiB/30059msec) slat (usec): min=48, max=66485, avg=13869.72, stdev=8596.58 clat (msec): min=47, max=478, avg=177.66, stdev=63.14 lat (msec): min=47, max=502, avg=191.53, stdev=66.41 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 102], 10.00th=[ 113], 20.00th=[ 127], | 30.00th=[ 140], 40.00th=[ 155], 50.00th=[ 167], 60.00th=[ 182], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 249], 95.00th=[ 305], | 99.00th=[ 409], 99.50th=[ 439], 99.90th=[ 468], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 55, max= 261, per=25.10%, avg=167.44, stdev=50.20, samples=59 iops : min= 13, max= 65, avg=41.39, stdev=12.62, samples=59 write: IOPS=43, BW=173KiB/s (177kB/s)(5192KiB/30059msec); 0 zone resets slat (usec): min=23, max=13668, avg=185.67, stdev=735.34 clat (msec): min=82, max=489, avg=181.68, stdev=61.53 lat (msec): min=82, max=489, avg=181.87, stdev=61.54 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 109], 10.00th=[ 120], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 257], 95.00th=[ 296], | 99.00th=[ 414], 99.50th=[ 456], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 71, max= 352, per=24.86%, avg=172.75, stdev=54.78, samples=59 iops : min= 17, max= 88, avg=42.73, stdev=13.73, samples=59 lat (msec) : 50=0.08%, 100=3.05%, 250=86.52%, 500=10.35% cpu : usr=0.22%, sys=1.57%, ctx=3874, 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=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=184437: Mon Mar 2 12:18:58 2026 read: IOPS=41, BW=166KiB/s (170kB/s)(4976KiB/30030msec) slat (usec): min=33, max=91540, avg=14121.04, stdev=9387.45 clat (msec): min=70, max=495, avg=177.09, stdev=63.99 lat (msec): min=75, max=535, avg=191.22, stdev=67.76 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 102], 10.00th=[ 112], 20.00th=[ 128], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 249], 95.00th=[ 300], | 99.00th=[ 409], 99.50th=[ 447], 99.90th=[ 481], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 51, max= 277, per=24.80%, avg=165.44, stdev=52.92, samples=59 iops : min= 12, max= 69, avg=40.88, stdev=13.30, samples=59 write: IOPS=43, BW=175KiB/s (179kB/s)(5264KiB/30030msec); 0 zone resets slat (usec): min=24, max=11509, avg=163.78, stdev=567.77 clat (msec): min=77, max=518, avg=181.87, stdev=61.27 lat (msec): min=77, max=518, avg=182.04, stdev=61.27 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 134], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 220], 90.00th=[ 259], 95.00th=[ 300], | 99.00th=[ 405], 99.50th=[ 443], 99.90th=[ 514], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 63, max= 320, per=25.25%, avg=175.49, stdev=52.03, samples=59 iops : min= 15, max= 80, avg=43.41, stdev=13.01, samples=59 lat (msec) : 100=3.91%, 250=85.47%, 500=10.55%, 750=0.08% cpu : usr=0.25%, sys=1.51%, ctx=3648, 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=184438: Mon Mar 2 12:18:58 2026 read: IOPS=41, BW=167KiB/s (171kB/s)(4984KiB/29789msec) slat (usec): min=55, max=81063, avg=14064.59, stdev=9052.80 clat (msec): min=15, max=501, avg=176.03, stdev=65.35 lat (msec): min=15, max=538, avg=190.10, stdev=69.15 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 99], 10.00th=[ 109], 20.00th=[ 125], | 30.00th=[ 140], 40.00th=[ 153], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 194], 80.00th=[ 213], 90.00th=[ 251], 95.00th=[ 300], | 99.00th=[ 422], 99.50th=[ 447], 99.90th=[ 481], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 39, max= 296, per=25.03%, avg=166.93, stdev=50.27, samples=58 iops : min= 9, max= 74, avg=41.28, stdev=12.61, samples=58 write: IOPS=44, BW=176KiB/s (181kB/s)(5256KiB/29789msec); 0 zone resets slat (usec): min=27, max=22961, avg=216.40, stdev=1032.75 clat (msec): min=26, max=519, avg=181.74, stdev=63.38 lat (msec): min=26, max=520, avg=181.96, stdev=63.44 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 105], 10.00th=[ 118], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 180], | 70.00th=[ 194], 80.00th=[ 218], 90.00th=[ 262], 95.00th=[ 313], | 99.00th=[ 435], 99.50th=[ 472], 99.90th=[ 506], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 55, max= 312, per=25.14%, avg=174.74, stdev=54.43, samples=58 iops : min= 13, max= 78, avg=43.22, stdev=13.68, samples=58 lat (msec) : 20=0.08%, 50=0.27%, 100=4.18%, 250=84.69%, 500=10.66% lat (msec) : 750=0.12% cpu : usr=0.32%, sys=1.89%, ctx=3964, 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=184439: Mon Mar 2 12:18:58 2026 read: IOPS=42, BW=168KiB/s (172kB/s)(5060KiB/30060msec) slat (usec): min=33, max=85580, avg=14085.06, stdev=8663.58 clat (msec): min=16, max=452, avg=176.82, stdev=63.06 lat (msec): min=27, max=492, avg=190.91, stdev=65.65 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 97], 10.00th=[ 111], 20.00th=[ 129], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 180], | 70.00th=[ 197], 80.00th=[ 213], 90.00th=[ 257], 95.00th=[ 292], | 99.00th=[ 409], 99.50th=[ 435], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 62, max= 336, per=25.23%, avg=168.29, stdev=53.07, samples=59 iops : min= 15, max= 84, avg=41.63, stdev=13.31, samples=59 write: IOPS=43, BW=172KiB/s (176kB/s)(5180KiB/30060msec); 0 zone resets slat (usec): min=25, max=45567, avg=222.80, stdev=1450.60 clat (msec): min=27, max=495, avg=182.64, stdev=62.76 lat (msec): min=27, max=495, avg=182.87, stdev=62.81 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 106], 10.00th=[ 118], 20.00th=[ 136], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 218], 90.00th=[ 262], 95.00th=[ 317], | 99.00th=[ 401], 99.50th=[ 456], 99.90th=[ 493], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 63, max= 290, per=24.68%, avg=171.56, stdev=50.72, samples=59 iops : min= 15, max= 72, avg=42.41, stdev=12.72, samples=59 lat (msec) : 20=0.04%, 50=0.20%, 100=4.57%, 250=83.79%, 500=11.41% cpu : usr=0.30%, sys=1.60%, ctx=3955, 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=668KiB/s (684kB/s), 166KiB/s-168KiB/s (170kB/s-172kB/s), io=19.6MiB (20.5MB), run=29789-30060msec WRITE: bw=695KiB/s (712kB/s), 172KiB/s-176KiB/s (176kB/s-181kB/s), io=20.4MiB (21.4MB), run=29789-30060msec 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=184449: Mon Mar 2 12:19:09 2026 read: IOPS=1, BW=77.2MiB/s (80.0MB/s)(40.0MiB/518msec) slat (nsec): min=23341k, max=23341k, avg=23340709.00, stdev= 0.00 clat (nsec): min=476129k, max=476129k, avg=476129100.00, stdev= 0.00 lat (nsec): min=499475k, max=499475k, avg=499474780.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 477], | 70.00th=[ 477], 80.00th=[ 477], 90.00th=[ 477], 95.00th=[ 477], | 99.00th=[ 477], 99.50th=[ 477], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.32%, 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=77.2MiB/s (80.0MB/s), 77.2MiB/s-77.2MiB/s (80.0MB/s-80.0MB/s), io=40.0MiB (41.9MB), run=518-518msec 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