== sanity test 398c: run fio to test AIO ================= 02:58:01 (1789023481) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.420202 s, 99.8 MB/s osc.lustre-OST0000-osc-ffff93482090f000.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=179235: Thu Sep 10 02:58:41 2026 write: IOPS=86, BW=347KiB/s (356kB/s)(10.0MiB/29470msec); 0 zone resets slat (usec): min=28, max=18415, avg=253.38, stdev=942.04 clat (msec): min=27, max=340, avg=183.04, stdev=44.54 lat (msec): min=28, max=341, avg=183.29, stdev=44.56 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 125], 10.00th=[ 132], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 224], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 296], 99.50th=[ 300], 99.90th=[ 309], 99.95th=[ 317], | 99.99th=[ 342] bw ( KiB/s): min= 241, max= 512, per=24.98%, avg=346.71, stdev=66.86, samples=58 iops : min= 60, max= 128, avg=86.34, stdev=16.75, samples=58 lat (msec) : 50=0.12%, 100=0.74%, 250=90.90%, 500=8.24% cpu : usr=0.25%, sys=1.11%, ctx=2921, 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=179236: Thu Sep 10 02:58:41 2026 write: IOPS=87, BW=348KiB/s (356kB/s)(10.0MiB/29416msec); 0 zone resets slat (usec): min=23, max=20638, avg=230.07, stdev=864.09 clat (msec): min=27, max=380, avg=183.47, stdev=45.65 lat (msec): min=28, max=380, avg=183.70, stdev=45.66 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 123], 10.00th=[ 132], 20.00th=[ 146], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 245], 95.00th=[ 264], | 99.00th=[ 321], 99.50th=[ 351], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 160, max= 504, per=25.08%, avg=348.10, stdev=76.46, samples=58 iops : min= 40, max= 126, avg=86.66, stdev=19.14, samples=58 lat (msec) : 50=0.04%, 100=1.52%, 250=90.51%, 500=7.93% cpu : usr=0.19%, sys=1.02%, ctx=2395, 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=179237: Thu Sep 10 02:58:41 2026 write: IOPS=86, BW=347KiB/s (355kB/s)(10.0MiB/29506msec); 0 zone resets slat (usec): min=28, max=24660, avg=228.50, stdev=998.77 clat (msec): min=24, max=338, avg=183.31, stdev=44.30 lat (msec): min=25, max=338, avg=183.54, stdev=44.31 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 180], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 264], | 99.00th=[ 305], 99.50th=[ 317], 99.90th=[ 338], 99.95th=[ 338], | 99.99th=[ 338] bw ( KiB/s): min= 224, max= 488, per=24.97%, avg=346.64, stdev=63.58, samples=58 iops : min= 56, max= 122, avg=86.29, stdev=15.94, samples=58 lat (msec) : 50=0.04%, 100=0.62%, 250=90.55%, 500=8.79% cpu : usr=0.23%, sys=1.16%, ctx=2519, 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=179238: Thu Sep 10 02:58:41 2026 write: IOPS=86, BW=347KiB/s (356kB/s)(10.0MiB/29494msec); 0 zone resets slat (usec): min=25, max=27741, avg=247.33, stdev=997.43 clat (msec): min=44, max=362, avg=183.14, stdev=45.21 lat (msec): min=44, max=362, avg=183.39, stdev=45.18 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 126], 10.00th=[ 134], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 165], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 245], 95.00th=[ 275], | 99.00th=[ 300], 99.50th=[ 317], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 224, max= 512, per=25.03%, avg=347.45, stdev=67.46, samples=58 iops : min= 56, max= 128, avg=86.52, stdev=16.88, samples=58 lat (msec) : 50=0.04%, 100=1.52%, 250=89.84%, 500=8.59% cpu : usr=0.31%, sys=1.08%, ctx=2661, 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=1388KiB/s (1422kB/s), 347KiB/s-348KiB/s (355kB/s-356kB/s), io=40.0MiB (41.9MB), run=29416-29506msec 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=179252: Thu Sep 10 02:59:30 2026 read: IOPS=30, BW=122KiB/s (125kB/s)(5048KiB/41420msec) slat (usec): min=2087, max=76571, avg=18205.71, stdev=10714.79 clat (msec): min=18, max=553, avg=243.57, stdev=67.13 lat (msec): min=29, max=565, avg=261.78, stdev=69.97 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 144], 10.00th=[ 167], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 222], 50.00th=[ 239], 60.00th=[ 253], | 70.00th=[ 268], 80.00th=[ 292], 90.00th=[ 330], 95.00th=[ 363], | 99.00th=[ 430], 99.50th=[ 464], 99.90th=[ 489], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 48, max= 224, per=24.96%, avg=120.83, stdev=35.66, samples=82 iops : min= 12, max= 56, avg=29.70, stdev= 8.95, samples=82 write: IOPS=31, BW=125KiB/s (128kB/s)(5192KiB/41420msec); 0 zone resets slat (usec): min=24, max=33611, avg=312.49, stdev=1588.95 clat (msec): min=22, max=516, avg=252.60, stdev=66.51 lat (msec): min=22, max=516, avg=252.92, stdev=66.49 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 153], 10.00th=[ 182], 20.00th=[ 201], | 30.00th=[ 218], 40.00th=[ 232], 50.00th=[ 245], 60.00th=[ 262], | 70.00th=[ 279], 80.00th=[ 305], 90.00th=[ 347], 95.00th=[ 372], | 99.00th=[ 439], 99.50th=[ 456], 99.90th=[ 498], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 27, max= 248, per=24.72%, avg=124.61, stdev=35.48, samples=82 iops : min= 6, max= 62, avg=30.63, stdev= 8.94, samples=82 lat (msec) : 20=0.04%, 50=0.23%, 100=0.74%, 250=54.57%, 500=44.34% lat (msec) : 750=0.08% cpu : usr=0.29%, sys=1.65%, ctx=3723, 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=179253: Thu Sep 10 02:59:30 2026 read: IOPS=30, BW=120KiB/s (123kB/s)(4976KiB/41370msec) slat (usec): min=2503, max=82949, avg=18187.05, stdev=10839.83 clat (msec): min=58, max=501, avg=242.88, stdev=65.55 lat (msec): min=66, max=514, avg=261.08, stdev=67.90 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 148], 10.00th=[ 165], 20.00th=[ 192], | 30.00th=[ 207], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 268], 80.00th=[ 292], 90.00th=[ 330], 95.00th=[ 372], | 99.00th=[ 439], 99.50th=[ 451], 99.90th=[ 502], 99.95th=[ 502], | 99.99th=[ 502] bw ( KiB/s): min= 34, max= 215, per=24.59%, avg=119.01, stdev=33.22, samples=81 iops : min= 8, max= 53, avg=29.23, stdev= 8.33, samples=81 write: IOPS=31, BW=127KiB/s (130kB/s)(5264KiB/41370msec); 0 zone resets slat (usec): min=31, max=25230, avg=284.30, stdev=1150.11 clat (msec): min=102, max=487, avg=253.13, stdev=61.99 lat (msec): min=102, max=487, avg=253.42, stdev=62.05 clat percentiles (msec): | 1.00th=[ 124], 5.00th=[ 163], 10.00th=[ 182], 20.00th=[ 205], | 30.00th=[ 220], 40.00th=[ 234], 50.00th=[ 247], 60.00th=[ 259], | 70.00th=[ 279], 80.00th=[ 300], 90.00th=[ 338], 95.00th=[ 368], | 99.00th=[ 426], 99.50th=[ 460], 99.90th=[ 485], 99.95th=[ 489], | 99.99th=[ 489] bw ( KiB/s): min= 44, max= 223, per=25.00%, avg=125.99, stdev=35.74, samples=81 iops : min= 11, max= 55, avg=31.00, stdev= 8.98, samples=81 lat (msec) : 100=0.12%, 250=56.33%, 500=43.52%, 750=0.04% cpu : usr=0.24%, sys=1.64%, ctx=3737, 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=179254: Thu Sep 10 02:59:30 2026 read: IOPS=30, BW=121KiB/s (124kB/s)(4984KiB/41094msec) slat (usec): min=52, max=85042, avg=17859.68, stdev=10410.01 clat (msec): min=13, max=519, avg=242.88, stdev=64.05 lat (msec): min=13, max=530, avg=260.74, stdev=66.86 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 150], 10.00th=[ 169], 20.00th=[ 194], | 30.00th=[ 209], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 268], 80.00th=[ 288], 90.00th=[ 330], 95.00th=[ 363], | 99.00th=[ 418], 99.50th=[ 435], 99.90th=[ 481], 99.95th=[ 518], | 99.99th=[ 518] bw ( KiB/s): min= 47, max= 215, per=25.01%, avg=121.05, stdev=30.84, samples=81 iops : min= 11, max= 53, avg=29.74, stdev= 7.75, samples=81 write: IOPS=31, BW=128KiB/s (131kB/s)(5256KiB/41094msec); 0 zone resets slat (usec): min=25, max=12094, avg=232.26, stdev=683.16 clat (msec): min=61, max=481, avg=252.09, stdev=62.88 lat (msec): min=61, max=481, avg=252.33, stdev=62.86 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 163], 10.00th=[ 182], 20.00th=[ 203], | 30.00th=[ 218], 40.00th=[ 232], 50.00th=[ 243], 60.00th=[ 257], | 70.00th=[ 275], 80.00th=[ 300], 90.00th=[ 334], 95.00th=[ 368], | 99.00th=[ 451], 99.50th=[ 472], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] bw ( KiB/s): min= 47, max= 199, per=25.17%, avg=126.84, stdev=35.83, samples=81 iops : min= 11, max= 49, avg=31.21, stdev= 9.04, samples=81 lat (msec) : 20=0.16%, 50=0.04%, 100=0.23%, 250=57.11%, 500=42.42% lat (msec) : 750=0.04% cpu : usr=0.27%, sys=1.65%, ctx=3757, 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=179255: Thu Sep 10 02:59:30 2026 read: IOPS=30, BW=122KiB/s (125kB/s)(5060KiB/41402msec) slat (msec): min=2, max=100, avg=18.38, stdev=11.73 clat (msec): min=73, max=578, avg=241.78, stdev=66.48 lat (msec): min=80, max=602, avg=260.17, stdev=69.46 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 144], 10.00th=[ 163], 20.00th=[ 188], | 30.00th=[ 207], 40.00th=[ 222], 50.00th=[ 236], 60.00th=[ 253], | 70.00th=[ 271], 80.00th=[ 288], 90.00th=[ 326], 95.00th=[ 368], | 99.00th=[ 439], 99.50th=[ 451], 99.90th=[ 510], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 52, max= 215, per=24.96%, avg=120.79, stdev=34.95, samples=81 iops : min= 13, max= 53, avg=29.68, stdev= 8.76, samples=81 write: IOPS=31, BW=125KiB/s (128kB/s)(5180KiB/41402msec); 0 zone resets slat (usec): min=24, max=22562, avg=338.76, stdev=1410.47 clat (msec): min=80, max=476, avg=254.69, stdev=64.81 lat (msec): min=80, max=476, avg=255.03, stdev=64.86 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 157], 10.00th=[ 178], 20.00th=[ 201], | 30.00th=[ 222], 40.00th=[ 234], 50.00th=[ 249], 60.00th=[ 266], | 70.00th=[ 284], 80.00th=[ 305], 90.00th=[ 338], 95.00th=[ 376], | 99.00th=[ 439], 99.50th=[ 447], 99.90th=[ 477], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 55, max= 198, per=24.40%, avg=123.00, stdev=31.26, samples=81 iops : min= 13, max= 49, avg=30.25, stdev= 7.86, samples=81 lat (msec) : 100=0.59%, 250=54.10%, 500=45.23%, 750=0.08% cpu : usr=0.26%, sys=1.66%, ctx=3738, 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=485KiB/s (496kB/s), 120KiB/s-122KiB/s (123kB/s-125kB/s), io=19.6MiB (20.5MB), run=41094-41420msec WRITE: bw=504KiB/s (516kB/s), 125KiB/s-128KiB/s (128kB/s-131kB/s), io=20.4MiB (21.4MB), run=41094-41420msec 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=179272: Thu Sep 10 02:59:41 2026 read: IOPS=1, BW=48.5MiB/s (50.9MB/s)(40.0MiB/824msec) slat (nsec): min=61880k, max=61880k, avg=61880057.00, stdev= 0.00 clat (nsec): min=693324k, max=693324k, avg=693323509.00, stdev= 0.00 lat (nsec): min=755208k, max=755208k, avg=755208000.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 693], 5.00th=[ 693], 10.00th=[ 693], 20.00th=[ 693], | 30.00th=[ 693], 40.00th=[ 693], 50.00th=[ 693], 60.00th=[ 693], | 70.00th=[ 693], 80.00th=[ 693], 90.00th=[ 693], 95.00th=[ 693], | 99.00th=[ 693], 99.50th=[ 693], 99.90th=[ 693], 99.95th=[ 693], | 99.99th=[ 693] lat (msec) : 750=100.00% cpu : usr=0.49%, sys=2.67%, ctx=16, majf=0, minf=10 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=48.5MiB/s (50.9MB/s), 48.5MiB/s-48.5MiB/s (50.9MB/s-50.9MB/s), io=40.0MiB (41.9MB), run=824-824msec 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