== sanity test 398c: run fio to test AIO ================= 09:59:57 (1788875997) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.449736 s, 93.3 MB/s osc.lustre-OST0000-osc-ffff8c47c435f000.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=179668: Tue Sep 8 10:00:35 2026 write: IOPS=91, BW=368KiB/s (377kB/s)(10.0MiB/27833msec); 0 zone resets slat (usec): min=30, max=15449, avg=185.36, stdev=578.38 clat (msec): min=50, max=310, avg=173.10, stdev=38.52 lat (msec): min=50, max=311, avg=173.29, stdev=38.51 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 109], 10.00th=[ 127], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 292], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 253, max= 510, per=24.99%, avg=367.56, stdev=72.97, samples=55 iops : min= 63, max= 127, avg=91.55, stdev=18.27, samples=55 lat (msec) : 100=2.27%, 250=93.59%, 500=4.14% cpu : usr=0.13%, sys=0.84%, ctx=2632, majf=0, minf=8 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=179669: Tue Sep 8 10:00:35 2026 write: IOPS=92, BW=370KiB/s (379kB/s)(10.0MiB/27681msec); 0 zone resets slat (usec): min=29, max=10418, avg=220.34, stdev=586.00 clat (msec): min=15, max=385, avg=172.59, stdev=39.33 lat (msec): min=15, max=385, avg=172.82, stdev=39.32 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 109], 10.00th=[ 124], 20.00th=[ 142], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 180], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 384] bw ( KiB/s): min= 255, max= 582, per=25.24%, avg=371.35, stdev=71.68, samples=54 iops : min= 63, max= 145, avg=92.46, stdev=17.90, samples=54 lat (msec) : 20=0.04%, 50=0.04%, 100=2.58%, 250=93.98%, 500=3.36% cpu : usr=0.20%, sys=1.03%, ctx=3212, majf=0, minf=8 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=179670: Tue Sep 8 10:00:35 2026 write: IOPS=92, BW=369KiB/s (378kB/s)(10.0MiB/27750msec); 0 zone resets slat (usec): min=28, max=9669, avg=176.27, stdev=515.59 clat (msec): min=19, max=312, avg=172.67, stdev=39.11 lat (msec): min=19, max=312, avg=172.84, stdev=39.10 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 182], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 226], 95.00th=[ 243], | 99.00th=[ 275], 99.50th=[ 275], 99.90th=[ 313], 99.95th=[ 313], | 99.99th=[ 313] bw ( KiB/s): min= 217, max= 637, per=24.98%, avg=367.51, stdev=78.44, samples=55 iops : min= 54, max= 159, avg=91.53, stdev=19.58, samples=55 lat (msec) : 20=0.04%, 50=0.08%, 100=2.66%, 250=93.40%, 500=3.83% cpu : usr=0.13%, sys=0.78%, ctx=2417, 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=179671: Tue Sep 8 10:00:35 2026 write: IOPS=91, BW=368KiB/s (377kB/s)(10.0MiB/27838msec); 0 zone resets slat (usec): min=29, max=20490, avg=210.72, stdev=781.96 clat (msec): min=43, max=306, avg=172.99, stdev=37.65 lat (msec): min=43, max=306, avg=173.20, stdev=37.64 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 110], 10.00th=[ 126], 20.00th=[ 144], | 30.00th=[ 153], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 190], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 271], 99.50th=[ 288], 99.90th=[ 300], 99.95th=[ 300], | 99.99th=[ 309] bw ( KiB/s): min= 224, max= 638, per=24.99%, avg=367.62, stdev=71.94, samples=55 iops : min= 56, max= 159, avg=91.53, stdev=17.97, samples=55 lat (msec) : 50=0.08%, 100=0.98%, 250=95.27%, 500=3.67% cpu : usr=0.14%, sys=0.92%, ctx=2521, 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 Run status group 0 (all jobs): WRITE: bw=1471KiB/s (1507kB/s), 368KiB/s-370KiB/s (377kB/s-379kB/s), io=40.0MiB (41.9MB), run=27681-27838msec 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=179686: Tue Sep 8 10:01:12 2026 read: IOPS=44, BW=176KiB/s (180kB/s)(5048KiB/28667msec) slat (usec): min=35, max=57722, avg=12640.32, stdev=7069.40 clat (msec): min=24, max=352, avg=170.38, stdev=43.92 lat (msec): min=24, max=363, avg=183.02, stdev=45.23 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 230], 95.00th=[ 249], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 103, max= 280, per=25.24%, avg=175.16, stdev=35.57, samples=56 iops : min= 25, max= 70, avg=43.41, stdev= 8.97, samples=56 write: IOPS=45, BW=181KiB/s (185kB/s)(5192KiB/28667msec); 0 zone resets slat (usec): min=30, max=11353, avg=245.91, stdev=722.51 clat (msec): min=50, max=378, avg=174.76, stdev=37.87 lat (msec): min=50, max=378, avg=175.01, stdev=37.89 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 121], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 203], 90.00th=[ 224], 95.00th=[ 247], | 99.00th=[ 279], 99.50th=[ 334], 99.90th=[ 363], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 95, max= 262, per=25.02%, avg=180.66, stdev=41.36, samples=56 iops : min= 23, max= 65, avg=44.79, stdev=10.36, samples=56 lat (msec) : 50=0.20%, 100=1.64%, 250=93.55%, 500=4.61% cpu : usr=0.23%, sys=2.02%, ctx=4681, 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=179687: Tue Sep 8 10:01:12 2026 read: IOPS=43, BW=172KiB/s (176kB/s)(4976KiB/28907msec) slat (usec): min=2733, max=53660, avg=12681.22, stdev=6818.89 clat (msec): min=24, max=341, avg=169.37, stdev=39.60 lat (msec): min=39, max=362, avg=182.06, stdev=40.61 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 114], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 239], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 342], 99.95th=[ 342], | 99.99th=[ 342] bw ( KiB/s): min= 55, max= 248, per=24.72%, avg=171.56, stdev=40.18, samples=57 iops : min= 13, max= 62, avg=42.49, stdev=10.10, samples=57 write: IOPS=45, BW=182KiB/s (186kB/s)(5264KiB/28907msec); 0 zone resets slat (usec): min=37, max=11341, avg=190.54, stdev=506.44 clat (msec): min=29, max=372, avg=177.00, stdev=39.05 lat (msec): min=29, max=373, avg=177.19, stdev=39.04 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 118], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 165], 50.00th=[ 174], 60.00th=[ 182], | 70.00th=[ 192], 80.00th=[ 207], 90.00th=[ 226], 95.00th=[ 245], | 99.00th=[ 288], 99.50th=[ 313], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 101, max= 275, per=25.23%, avg=182.18, stdev=38.41, samples=57 iops : min= 25, max= 68, avg=45.14, stdev= 9.60, samples=57 lat (msec) : 50=0.08%, 100=1.84%, 250=94.22%, 500=3.87% cpu : usr=0.29%, sys=1.64%, ctx=4340, 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=179688: Tue Sep 8 10:01:12 2026 read: IOPS=43, BW=172KiB/s (177kB/s)(4984KiB/28908msec) slat (usec): min=2699, max=57391, avg=12803.05, stdev=7090.48 clat (msec): min=17, max=356, avg=168.45, stdev=40.44 lat (msec): min=28, max=396, avg=181.26, stdev=41.89 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 112], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 197], 90.00th=[ 222], 95.00th=[ 245], | 99.00th=[ 284], 99.50th=[ 309], 99.90th=[ 347], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 95, max= 262, per=24.82%, avg=172.26, stdev=41.12, samples=57 iops : min= 23, max= 65, avg=42.67, stdev=10.35, samples=57 write: IOPS=45, BW=182KiB/s (186kB/s)(5256KiB/28908msec); 0 zone resets slat (usec): min=32, max=8964, avg=252.04, stdev=722.70 clat (msec): min=33, max=355, avg=178.14, stdev=38.02 lat (msec): min=34, max=355, avg=178.39, stdev=37.99 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 123], 10.00th=[ 133], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 186], | 70.00th=[ 197], 80.00th=[ 209], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 296], 99.90th=[ 338], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 103, max= 264, per=25.05%, avg=180.88, stdev=35.18, samples=57 iops : min= 25, max= 66, avg=44.84, stdev= 8.80, samples=57 lat (msec) : 20=0.04%, 50=0.08%, 100=1.33%, 250=94.57%, 500=3.98% cpu : usr=0.23%, sys=1.85%, ctx=4451, 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=179689: Tue Sep 8 10:01:12 2026 read: IOPS=43, BW=175KiB/s (180kB/s)(5060KiB/28859msec) slat (usec): min=2579, max=69776, avg=12486.47, stdev=6890.24 clat (msec): min=21, max=370, avg=169.93, stdev=41.47 lat (msec): min=32, max=384, avg=182.42, stdev=42.54 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 136], | 30.00th=[ 146], 40.00th=[ 157], 50.00th=[ 165], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 241], | 99.00th=[ 288], 99.50th=[ 338], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 94, max= 262, per=25.22%, avg=175.05, stdev=37.26, samples=57 iops : min= 23, max= 65, avg=43.39, stdev= 9.39, samples=57 write: IOPS=44, BW=179KiB/s (184kB/s)(5180KiB/28859msec); 0 zone resets slat (usec): min=32, max=12405, avg=202.20, stdev=625.38 clat (msec): min=85, max=362, avg=176.14, stdev=37.50 lat (msec): min=85, max=362, avg=176.35, stdev=37.50 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 125], 10.00th=[ 133], 20.00th=[ 148], | 30.00th=[ 157], 40.00th=[ 163], 50.00th=[ 174], 60.00th=[ 180], | 70.00th=[ 192], 80.00th=[ 205], 90.00th=[ 222], 95.00th=[ 243], | 99.00th=[ 292], 99.50th=[ 309], 99.90th=[ 359], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 87, max= 272, per=24.85%, avg=179.39, stdev=39.96, samples=57 iops : min= 21, max= 68, avg=44.47, stdev=10.06, samples=57 lat (msec) : 50=0.08%, 100=1.29%, 250=94.73%, 500=3.91% cpu : usr=0.30%, sys=1.74%, ctx=4390, 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=694KiB/s (711kB/s), 172KiB/s-176KiB/s (176kB/s-180kB/s), io=19.6MiB (20.5MB), run=28667-28908msec WRITE: bw=723KiB/s (740kB/s), 179KiB/s-182KiB/s (184kB/s-186kB/s), io=20.4MiB (21.4MB), run=28667-28908msec 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=179709: Tue Sep 8 10:01:21 2026 read: IOPS=1, BW=79.5MiB/s (83.4MB/s)(40.0MiB/503msec) slat (nsec): min=35221k, max=35221k, avg=35221485.00, stdev= 0.00 clat (nsec): min=451166k, max=451166k, avg=451166090.00, stdev= 0.00 lat (nsec): min=486392k, max=486392k, avg=486392100.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 451], 10.00th=[ 451], 20.00th=[ 451], | 30.00th=[ 451], 40.00th=[ 451], 50.00th=[ 451], 60.00th=[ 451], | 70.00th=[ 451], 80.00th=[ 451], 90.00th=[ 451], 95.00th=[ 451], | 99.00th=[ 451], 99.50th=[ 451], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 451] lat (msec) : 500=100.00% cpu : usr=0.20%, sys=2.19%, ctx=7, 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=79.5MiB/s (83.4MB/s), 79.5MiB/s-79.5MiB/s (83.4MB/s-83.4MB/s), io=40.0MiB (41.9MB), run=503-503msec 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