== sanity test 398c: run fio to test AIO ================= 10:03:24 (1789135404) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.496953 s, 84.4 MB/s osc.lustre-OST0000-osc-ffff9fcd43496000.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=145829: Fri Sep 11 10:07:13 2026 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(10.0MiB/219929msec); 0 zone resets slat (usec): min=30, max=20018, avg=325.60, stdev=1309.43 clat (msec): min=367, max=3882, avg=1373.18, stdev=466.89 lat (msec): min=368, max=3885, avg=1373.51, stdev=466.92 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 768], 10.00th=[ 860], 20.00th=[ 986], | 30.00th=[ 1099], 40.00th=[ 1183], 50.00th=[ 1301], 60.00th=[ 1418], | 70.00th=[ 1552], 80.00th=[ 1720], 90.00th=[ 1989], 95.00th=[ 2198], | 99.00th=[ 2903], 99.50th=[ 3339], 99.90th=[ 3775], 99.95th=[ 3876], | 99.99th=[ 3876] bw ( KiB/s): min= 7, max= 128, per=26.73%, avg=49.72, stdev=27.08, samples=403 iops : min= 1, max= 32, avg=11.89, stdev= 6.78, samples=403 lat (msec) : 500=0.66%, 750=4.14%, 1000=16.41%, 2000=69.30%, >=2000=9.49% cpu : usr=0.05%, sys=0.21%, ctx=1660, 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=145830: Fri Sep 11 10:07:13 2026 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(10.0MiB/219933msec); 0 zone resets slat (usec): min=30, max=28907, avg=350.75, stdev=1517.53 clat (msec): min=227, max=3938, avg=1373.33, stdev=469.45 lat (msec): min=230, max=3938, avg=1373.68, stdev=469.43 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 760], 10.00th=[ 860], 20.00th=[ 995], | 30.00th=[ 1099], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1401], | 70.00th=[ 1536], 80.00th=[ 1754], 90.00th=[ 1989], 95.00th=[ 2198], | 99.00th=[ 2836], 99.50th=[ 3339], 99.90th=[ 3775], 99.95th=[ 3943], | 99.99th=[ 3943] bw ( KiB/s): min= 7, max= 152, per=26.20%, avg=48.73, stdev=24.46, samples=411 iops : min= 1, max= 38, avg=11.64, stdev= 6.14, samples=411 lat (msec) : 250=0.12%, 500=0.66%, 750=3.95%, 1000=15.86%, 2000=69.61% lat (msec) : >=2000=9.80% cpu : usr=0.05%, sys=0.22%, ctx=1810, 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=145831: Fri Sep 11 10:07:13 2026 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(10.0MiB/219751msec); 0 zone resets slat (usec): min=28, max=26161, avg=303.51, stdev=1413.32 clat (msec): min=219, max=3616, avg=1372.59, stdev=467.41 lat (msec): min=219, max=3616, avg=1372.90, stdev=467.45 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 776], 10.00th=[ 877], 20.00th=[ 1011], | 30.00th=[ 1116], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1385], | 70.00th=[ 1536], 80.00th=[ 1720], 90.00th=[ 1989], 95.00th=[ 2198], | 99.00th=[ 2802], 99.50th=[ 3406], 99.90th=[ 3507], 99.95th=[ 3608], | 99.99th=[ 3608] bw ( KiB/s): min= 7, max= 128, per=28.07%, avg=52.22, stdev=30.55, samples=384 iops : min= 1, max= 32, avg=12.53, stdev= 7.65, samples=384 lat (msec) : 250=0.62%, 500=0.62%, 750=3.05%, 1000=15.04%, 2000=71.02% lat (msec) : >=2000=9.65% cpu : usr=0.04%, sys=0.21%, ctx=1593, 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=145832: Fri Sep 11 10:07:13 2026 write: IOPS=11, BW=46.6KiB/s (47.7kB/s)(10.0MiB/219928msec); 0 zone resets slat (usec): min=27, max=20836, avg=363.24, stdev=1454.47 clat (msec): min=218, max=3541, avg=1372.79, stdev=458.65 lat (msec): min=218, max=3541, avg=1373.15, stdev=458.70 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 751], 10.00th=[ 869], 20.00th=[ 1003], | 30.00th=[ 1116], 40.00th=[ 1200], 50.00th=[ 1301], 60.00th=[ 1401], | 70.00th=[ 1536], 80.00th=[ 1737], 90.00th=[ 1972], 95.00th=[ 2198], | 99.00th=[ 2769], 99.50th=[ 3306], 99.90th=[ 3540], 99.95th=[ 3540], | 99.99th=[ 3540] bw ( KiB/s): min= 7, max= 144, per=26.03%, avg=48.41, stdev=27.28, samples=414 iops : min= 1, max= 36, avg=11.57, stdev= 6.83, samples=414 lat (msec) : 250=0.04%, 500=0.78%, 750=4.22%, 1000=14.84%, 2000=70.74% lat (msec) : >=2000=9.38% cpu : usr=0.05%, sys=0.21%, ctx=1871, 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=186KiB/s (191kB/s), 46.6KiB/s-46.6KiB/s (47.7kB/s-47.7kB/s), io=40.0MiB (41.9MB), run=219751-219933msec 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=145873: Fri Sep 11 10:09:42 2026 read: IOPS=9, BW=36.5KiB/s (37.4kB/s)(5048KiB/138263msec) slat (usec): min=3076, max=95878, avg=17222.64, stdev=9950.24 clat (msec): min=61, max=1348, avg=528.86, stdev=176.99 lat (msec): min=85, max=1390, avg=546.09, stdev=179.38 clat percentiles (msec): | 1.00th=[ 245], 5.00th=[ 309], 10.00th=[ 334], 20.00th=[ 384], | 30.00th=[ 426], 40.00th=[ 456], 50.00th=[ 493], 60.00th=[ 535], | 70.00th=[ 592], 80.00th=[ 659], 90.00th=[ 768], 95.00th=[ 877], | 99.00th=[ 1062], 99.50th=[ 1116], 99.90th=[ 1284], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 104, per=25.15%, avg=36.47, stdev=18.83, samples=270 iops : min= 1, max= 26, avg= 8.57, stdev= 4.73, samples=270 write: IOPS=9, BW=37.6KiB/s (38.5kB/s)(5192KiB/138263msec); 0 zone resets slat (usec): min=31, max=18658, avg=390.68, stdev=1338.47 clat (msec): min=387, max=2520, avg=1168.62, stdev=344.93 lat (msec): min=387, max=2520, avg=1169.01, stdev=344.95 clat percentiles (msec): | 1.00th=[ 542], 5.00th=[ 676], 10.00th=[ 768], 20.00th=[ 877], | 30.00th=[ 978], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1301], 80.00th=[ 1435], 90.00th=[ 1636], 95.00th=[ 1821], | 99.00th=[ 2165], 99.50th=[ 2265], 99.90th=[ 2433], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 96, per=25.26%, avg=38.14, stdev=18.32, samples=265 iops : min= 1, max= 24, avg= 8.98, stdev= 4.61, samples=265 lat (msec) : 100=0.08%, 250=0.51%, 500=25.43%, 750=22.34%, 1000=16.21% lat (msec) : 2000=34.18%, >=2000=1.25% cpu : usr=0.10%, sys=0.64%, ctx=4519, 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=145874: Fri Sep 11 10:09:42 2026 read: IOPS=9, BW=36.1KiB/s (36.9kB/s)(4976KiB/137947msec) slat (usec): min=34, max=70932, avg=17505.68, stdev=9972.60 clat (msec): min=32, max=2016, avg=534.26, stdev=186.79 lat (msec): min=47, max=2074, avg=551.78, stdev=189.22 clat percentiles (msec): | 1.00th=[ 251], 5.00th=[ 309], 10.00th=[ 347], 20.00th=[ 388], | 30.00th=[ 426], 40.00th=[ 464], 50.00th=[ 506], 60.00th=[ 542], | 70.00th=[ 600], 80.00th=[ 667], 90.00th=[ 768], 95.00th=[ 852], | 99.00th=[ 1045], 99.50th=[ 1485], 99.90th=[ 1921], 99.95th=[ 2022], | 99.99th=[ 2022] bw ( KiB/s): min= 7, max= 103, per=25.40%, avg=36.83, stdev=19.81, samples=263 iops : min= 1, max= 25, avg= 8.66, stdev= 4.98, samples=263 write: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5264KiB/137947msec); 0 zone resets slat (usec): min=31, max=18937, avg=360.20, stdev=1213.91 clat (msec): min=159, max=2529, avg=1153.35, stdev=364.40 lat (msec): min=159, max=2537, avg=1153.71, stdev=364.47 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 667], 10.00th=[ 743], 20.00th=[ 860], | 30.00th=[ 961], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1183], | 70.00th=[ 1267], 80.00th=[ 1401], 90.00th=[ 1636], 95.00th=[ 1854], | 99.00th=[ 2265], 99.50th=[ 2366], 99.90th=[ 2500], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 112, per=25.33%, avg=38.24, stdev=19.61, samples=268 iops : min= 1, max= 28, avg= 9.01, stdev= 4.95, samples=268 lat (msec) : 50=0.04%, 100=0.20%, 250=0.66%, 500=23.98%, 750=23.52% lat (msec) : 1000=16.95%, 2000=33.16%, >=2000=1.48% cpu : usr=0.09%, sys=0.59%, ctx=4583, 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=145875: Fri Sep 11 10:09:42 2026 read: IOPS=9, BW=36.0KiB/s (36.9kB/s)(4984KiB/138263msec) slat (usec): min=3605, max=86823, avg=18209.06, stdev=11282.90 clat (msec): min=18, max=1164, avg=536.16, stdev=176.25 lat (msec): min=24, max=1188, avg=554.37, stdev=179.44 clat percentiles (msec): | 1.00th=[ 241], 5.00th=[ 309], 10.00th=[ 342], 20.00th=[ 397], | 30.00th=[ 430], 40.00th=[ 460], 50.00th=[ 506], 60.00th=[ 550], | 70.00th=[ 600], 80.00th=[ 676], 90.00th=[ 793], 95.00th=[ 885], | 99.00th=[ 1028], 99.50th=[ 1070], 99.90th=[ 1150], 99.95th=[ 1167], | 99.99th=[ 1167] bw ( KiB/s): min= 7, max= 111, per=25.01%, avg=36.26, stdev=18.51, samples=269 iops : min= 1, max= 27, avg= 8.52, stdev= 4.67, samples=269 write: IOPS=9, BW=38.0KiB/s (38.9kB/s)(5256KiB/138263msec); 0 zone resets slat (usec): min=34, max=20365, avg=341.82, stdev=1259.44 clat (msec): min=244, max=2531, avg=1153.31, stdev=334.85 lat (msec): min=244, max=2539, avg=1153.65, stdev=334.87 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 676], 10.00th=[ 760], 20.00th=[ 877], | 30.00th=[ 969], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1569], 95.00th=[ 1787], | 99.00th=[ 2165], 99.50th=[ 2232], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 104, per=24.91%, avg=37.62, stdev=19.60, samples=271 iops : min= 1, max= 26, avg= 8.86, stdev= 4.92, samples=271 lat (msec) : 20=0.04%, 100=0.12%, 250=0.55%, 500=23.75%, 750=22.85% lat (msec) : 1000=17.85%, 2000=33.63%, >=2000=1.21% cpu : usr=0.08%, sys=0.62%, ctx=4402, 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=145876: Fri Sep 11 10:09:42 2026 read: IOPS=9, BW=36.7KiB/s (37.6kB/s)(5060KiB/137801msec) slat (usec): min=3085, max=87092, avg=17936.66, stdev=10358.67 clat (msec): min=10, max=2037, avg=538.27, stdev=193.29 lat (msec): min=17, max=2050, avg=556.22, stdev=195.80 clat percentiles (msec): | 1.00th=[ 236], 5.00th=[ 309], 10.00th=[ 347], 20.00th=[ 393], | 30.00th=[ 426], 40.00th=[ 464], 50.00th=[ 502], 60.00th=[ 550], | 70.00th=[ 609], 80.00th=[ 676], 90.00th=[ 776], 95.00th=[ 860], | 99.00th=[ 1099], 99.50th=[ 1368], 99.90th=[ 1921], 99.95th=[ 2039], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 88, per=25.27%, avg=36.64, stdev=18.09, samples=269 iops : min= 1, max= 22, avg= 8.61, stdev= 4.55, samples=269 write: IOPS=9, BW=37.6KiB/s (38.5kB/s)(5180KiB/137801msec); 0 zone resets slat (usec): min=33, max=19117, avg=373.15, stdev=1284.56 clat (msec): min=132, max=2529, avg=1155.08, stdev=343.87 lat (msec): min=132, max=2529, avg=1155.45, stdev=343.92 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 667], 10.00th=[ 751], 20.00th=[ 869], | 30.00th=[ 969], 40.00th=[ 1062], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1401], 90.00th=[ 1586], 95.00th=[ 1787], | 99.00th=[ 2265], 99.50th=[ 2333], 99.90th=[ 2433], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 88, per=25.01%, avg=37.77, stdev=18.17, samples=267 iops : min= 1, max= 22, avg= 8.89, stdev= 4.59, samples=267 lat (msec) : 20=0.04%, 50=0.04%, 250=0.86%, 500=24.34%, 750=23.01% lat (msec) : 1000=16.76%, 2000=33.87%, >=2000=1.09% cpu : usr=0.11%, sys=0.63%, ctx=4631, 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=145KiB/s (149kB/s), 36.0KiB/s-36.7KiB/s (36.9kB/s-37.6kB/s), io=19.6MiB (20.5MB), run=137801-138263msec WRITE: bw=151KiB/s (155kB/s), 37.6KiB/s-38.2KiB/s (38.5kB/s-39.1kB/s), io=20.4MiB (21.4MB), run=137801-138263msec 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=145902: Fri Sep 11 10:09:55 2026 read: IOPS=1, BW=44.3MiB/s (46.4MB/s)(40.0MiB/903msec) slat (nsec): min=84597k, max=84597k, avg=84596543.00, stdev= 0.00 clat (nsec): min=774641k, max=774641k, avg=774640644.00, stdev= 0.00 lat (nsec): min=859243k, max=859243k, avg=859242960.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 776], 5.00th=[ 776], 10.00th=[ 776], 20.00th=[ 776], | 30.00th=[ 776], 40.00th=[ 776], 50.00th=[ 776], 60.00th=[ 776], | 70.00th=[ 776], 80.00th=[ 776], 90.00th=[ 776], 95.00th=[ 776], | 99.00th=[ 776], 99.50th=[ 776], 99.90th=[ 776], 99.95th=[ 776], | 99.99th=[ 776] lat (msec) : 1000=100.00% cpu : usr=0.00%, sys=1.44%, ctx=36, 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=44.3MiB/s (46.4MB/s), 44.3MiB/s-44.3MiB/s (46.4MB/s-46.4MB/s), io=40.0MiB (41.9MB), run=903-903msec 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