== sanity test 398c: run fio to test AIO ================= 12:26:37 (1786638397) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.482814 s, 86.9 MB/s osc.lustre-OST0000-osc-ffff9ffb12cc6000.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=179185: Thu Aug 13 12:27:14 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26835msec); 0 zone resets slat (usec): min=37, max=19643, avg=302.25, stdev=898.34 clat (msec): min=16, max=314, avg=166.00, stdev=42.03 lat (msec): min=17, max=314, avg=166.31, stdev=42.04 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 101], 10.00th=[ 115], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 245], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 317] bw ( KiB/s): min= 227, max= 710, per=25.00%, avg=381.28, stdev=96.02, samples=53 iops : min= 56, max= 177, avg=94.96, stdev=24.01, samples=53 lat (msec) : 20=0.04%, 50=0.16%, 100=4.69%, 250=91.72%, 500=3.40% cpu : usr=0.20%, sys=1.29%, ctx=2638, 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=179186: Thu Aug 13 12:27:14 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26826msec); 0 zone resets slat (usec): min=37, max=15737, avg=347.80, stdev=1026.73 clat (msec): min=17, max=344, avg=166.53, stdev=42.92 lat (msec): min=17, max=344, avg=166.88, stdev=42.93 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 105], 10.00th=[ 117], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 228], 95.00th=[ 245], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 254, max= 694, per=25.01%, avg=381.40, stdev=84.97, samples=53 iops : min= 63, max= 173, avg=94.98, stdev=21.27, samples=53 lat (msec) : 20=0.08%, 50=0.08%, 100=3.63%, 250=92.42%, 500=3.79% cpu : usr=0.27%, sys=1.54%, ctx=2889, 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=179187: Thu Aug 13 12:27:14 2026 write: IOPS=95, BW=383KiB/s (392kB/s)(10.0MiB/26724msec); 0 zone resets slat (usec): min=36, max=20082, avg=324.78, stdev=993.57 clat (msec): min=23, max=384, avg=166.46, stdev=42.85 lat (msec): min=23, max=384, avg=166.78, stdev=42.88 clat percentiles (msec): | 1.00th=[ 80], 5.00th=[ 107], 10.00th=[ 117], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 228], 95.00th=[ 243], | 99.00th=[ 279], 99.50th=[ 288], 99.90th=[ 384], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 215, max= 646, per=25.00%, avg=381.25, stdev=89.53, samples=53 iops : min= 53, max= 161, avg=94.96, stdev=22.40, samples=53 lat (msec) : 50=0.08%, 100=3.09%, 250=93.40%, 500=3.44% cpu : usr=0.17%, sys=1.27%, ctx=2707, 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=179188: Thu Aug 13 12:27:14 2026 write: IOPS=95, BW=381KiB/s (391kB/s)(10.0MiB/26845msec); 0 zone resets slat (usec): min=35, max=11157, avg=253.87, stdev=690.49 clat (msec): min=27, max=325, avg=166.21, stdev=41.76 lat (msec): min=28, max=325, avg=166.47, stdev=41.79 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 105], 10.00th=[ 116], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 224], 95.00th=[ 243], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 326], 99.95th=[ 326], | 99.99th=[ 326] bw ( KiB/s): min= 228, max= 646, per=24.95%, avg=380.55, stdev=89.11, samples=53 iops : min= 57, max= 161, avg=94.77, stdev=22.26, samples=53 lat (msec) : 50=0.08%, 100=3.98%, 250=92.30%, 500=3.63% cpu : usr=0.13%, sys=1.20%, ctx=2207, 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=1526KiB/s (1562kB/s), 381KiB/s-383KiB/s (391kB/s-392kB/s), io=40.0MiB (41.9MB), run=26724-26845msec 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=179203: Thu Aug 13 12:27:57 2026 read: IOPS=39, BW=159KiB/s (163kB/s)(5048KiB/31676msec) slat (usec): min=2690, max=82723, avg=14429.71, stdev=8529.64 clat (msec): min=36, max=448, avg=186.33, stdev=58.73 lat (msec): min=45, max=474, avg=200.76, stdev=61.67 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 205], 80.00th=[ 234], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 418], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 64, max= 248, per=24.82%, avg=157.10, stdev=47.18, samples=62 iops : min= 16, max= 62, avg=38.79, stdev=11.84, samples=62 write: IOPS=40, BW=164KiB/s (168kB/s)(5192KiB/31676msec); 0 zone resets slat (usec): min=56, max=20524, avg=380.01, stdev=1197.54 clat (msec): min=51, max=432, avg=192.32, stdev=59.62 lat (msec): min=51, max=432, avg=192.70, stdev=59.83 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 118], 10.00th=[ 129], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 236], 90.00th=[ 275], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 435], | 99.99th=[ 435] bw ( KiB/s): min= 60, max= 302, per=24.64%, avg=162.37, stdev=49.44, samples=62 iops : min= 15, max= 75, avg=40.11, stdev=12.39, samples=62 lat (msec) : 50=0.04%, 100=1.45%, 250=83.79%, 500=14.73% cpu : usr=0.31%, sys=2.18%, ctx=4555, 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=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=179204: Thu Aug 13 12:27:57 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4976KiB/31604msec) slat (usec): min=2550, max=59175, avg=14347.08, stdev=8247.11 clat (msec): min=28, max=388, avg=186.90, stdev=56.92 lat (msec): min=53, max=412, avg=201.25, stdev=59.84 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 123], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 232], 90.00th=[ 266], 95.00th=[ 296], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 55, max= 264, per=24.63%, avg=155.90, stdev=46.46, samples=62 iops : min= 13, max= 66, avg=38.52, stdev=11.61, samples=62 write: IOPS=41, BW=167KiB/s (171kB/s)(5264KiB/31604msec); 0 zone resets slat (usec): min=46, max=24654, avg=366.13, stdev=1243.55 clat (msec): min=28, max=395, avg=191.78, stdev=57.74 lat (msec): min=28, max=396, avg=192.15, stdev=57.85 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 128], 20.00th=[ 144], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 232], 90.00th=[ 279], 95.00th=[ 305], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 80, max= 304, per=25.19%, avg=166.00, stdev=50.92, samples=62 iops : min= 20, max= 76, avg=41.03, stdev=12.75, samples=62 lat (msec) : 50=0.08%, 100=1.45%, 250=83.20%, 500=15.27% cpu : usr=0.32%, sys=2.23%, ctx=4491, 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=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=179205: Thu Aug 13 12:27:57 2026 read: IOPS=39, BW=157KiB/s (161kB/s)(4984KiB/31686msec) slat (usec): min=3113, max=63470, avg=14342.92, stdev=8242.47 clat (msec): min=41, max=448, avg=188.22, stdev=62.45 lat (msec): min=49, max=472, avg=202.57, stdev=65.44 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 110], 10.00th=[ 121], 20.00th=[ 136], | 30.00th=[ 150], 40.00th=[ 163], 50.00th=[ 176], 60.00th=[ 190], | 70.00th=[ 209], 80.00th=[ 241], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 380], 99.50th=[ 401], 99.90th=[ 435], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 65, max= 254, per=24.62%, avg=155.84, stdev=45.46, samples=62 iops : min= 16, max= 63, avg=38.47, stdev=11.38, samples=62 write: IOPS=41, BW=166KiB/s (170kB/s)(5256KiB/31686msec); 0 zone resets slat (usec): min=38, max=16327, avg=420.62, stdev=1280.72 clat (msec): min=27, max=410, avg=190.61, stdev=58.43 lat (msec): min=27, max=410, avg=191.03, stdev=58.55 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 118], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 236], 90.00th=[ 271], 95.00th=[ 305], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 64, max= 320, per=24.77%, avg=163.21, stdev=56.80, samples=62 iops : min= 16, max= 80, avg=40.31, stdev=14.22, samples=62 lat (msec) : 50=0.27%, 100=1.68%, 250=81.80%, 500=16.25% cpu : usr=0.30%, sys=2.17%, ctx=4414, 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=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=179206: Thu Aug 13 12:27:57 2026 read: IOPS=40, BW=161KiB/s (164kB/s)(5060KiB/31525msec) slat (usec): min=66, max=68409, avg=14485.05, stdev=8812.98 clat (msec): min=22, max=439, avg=187.77, stdev=60.69 lat (msec): min=26, max=472, avg=202.26, stdev=64.15 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 153], 40.00th=[ 165], 50.00th=[ 176], 60.00th=[ 188], | 70.00th=[ 207], 80.00th=[ 236], 90.00th=[ 271], 95.00th=[ 296], | 99.00th=[ 401], 99.50th=[ 409], 99.90th=[ 435], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 56, max= 286, per=25.22%, avg=159.61, stdev=49.09, samples=62 iops : min= 14, max= 71, avg=39.44, stdev=12.26, samples=62 write: IOPS=41, BW=164KiB/s (168kB/s)(5180KiB/31525msec); 0 zone resets slat (usec): min=36, max=17787, avg=376.28, stdev=1029.77 clat (msec): min=69, max=449, avg=190.94, stdev=56.91 lat (msec): min=70, max=449, avg=191.32, stdev=56.98 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 116], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 157], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 271], 95.00th=[ 300], | 99.00th=[ 376], 99.50th=[ 401], 99.90th=[ 447], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 71, max= 279, per=24.72%, avg=162.90, stdev=49.17, samples=62 iops : min= 17, max= 69, avg=40.23, stdev=12.36, samples=62 lat (msec) : 50=0.12%, 100=1.37%, 250=83.71%, 500=14.80% cpu : usr=0.26%, sys=2.19%, ctx=4601, 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=633KiB/s (649kB/s), 157KiB/s-161KiB/s (161kB/s-164kB/s), io=19.6MiB (20.5MB), run=31525-31686msec WRITE: bw=659KiB/s (675kB/s), 164KiB/s-167KiB/s (168kB/s-171kB/s), io=20.4MiB (21.4MB), run=31525-31686msec 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=179216: Thu Aug 13 12:28:08 2026 read: IOPS=1, BW=71.3MiB/s (74.8MB/s)(40.0MiB/561msec) slat (nsec): min=27487k, max=27487k, avg=27487394.00, stdev= 0.00 clat (nsec): min=500811k, max=500811k, avg=500810868.00, stdev= 0.00 lat (nsec): min=528303k, max=528303k, avg=528303482.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 502], 5.00th=[ 502], 10.00th=[ 502], 20.00th=[ 502], | 30.00th=[ 502], 40.00th=[ 502], 50.00th=[ 502], 60.00th=[ 502], | 70.00th=[ 502], 80.00th=[ 502], 90.00th=[ 502], 95.00th=[ 502], | 99.00th=[ 502], 99.50th=[ 502], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.25%, ctx=5, 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=71.3MiB/s (74.8MB/s), 71.3MiB/s-71.3MiB/s (74.8MB/s-74.8MB/s), io=40.0MiB (41.9MB), run=561-561msec 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