== sanity test 398c: run fio to test AIO ================= 13:04:19 (1786813459) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.859435 s, 48.8 MB/s osc.lustre-OST0000-osc-ffff9f0a5342e000.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=145110: Sat Aug 15 13:07:23 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175639msec); 0 zone resets slat (usec): min=49, max=18720, avg=391.81, stdev=1133.95 clat (msec): min=266, max=2498, avg=1096.85, stdev=347.36 lat (msec): min=269, max=2498, avg=1097.24, stdev=347.38 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 651], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1586], 95.00th=[ 1804], | 99.00th=[ 2123], 99.50th=[ 2232], 99.90th=[ 2400], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 256, per=25.09%, avg=58.47, stdev=31.64, samples=343 iops : min= 1, max= 64, avg=14.06, stdev= 7.96, samples=343 lat (msec) : 500=1.29%, 750=11.13%, 1000=32.30%, 2000=53.24%, >=2000=2.03% cpu : usr=0.05%, sys=0.31%, ctx=1966, 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=145111: Sat Aug 15 13:07:23 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175560msec); 0 zone resets slat (usec): min=49, max=30735, avg=399.86, stdev=1200.13 clat (msec): min=230, max=2314, avg=1096.18, stdev=338.04 lat (msec): min=233, max=2314, avg=1096.59, stdev=338.04 clat percentiles (msec): | 1.00th=[ 510], 5.00th=[ 659], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 961], 50.00th=[ 1045], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1334], 90.00th=[ 1569], 95.00th=[ 1787], | 99.00th=[ 2123], 99.50th=[ 2165], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 136, per=25.19%, avg=58.70, stdev=25.75, samples=342 iops : min= 1, max= 34, avg=14.12, stdev= 6.47, samples=342 lat (msec) : 250=0.04%, 500=0.90%, 750=11.05%, 1000=33.12%, 2000=52.85% lat (msec) : >=2000=2.03% cpu : usr=0.05%, sys=0.30%, ctx=2249, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=145112: Sat Aug 15 13:07:23 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175761msec); 0 zone resets slat (usec): min=51, max=35874, avg=354.45, stdev=1136.45 clat (msec): min=82, max=2500, avg=1097.03, stdev=333.19 lat (msec): min=82, max=2500, avg=1097.39, stdev=333.22 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 667], 10.00th=[ 726], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1045], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1552], 95.00th=[ 1804], | 99.00th=[ 2123], 99.50th=[ 2140], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 128, per=26.46%, avg=61.65, stdev=32.89, samples=326 iops : min= 1, max= 32, avg=14.87, stdev= 8.24, samples=326 lat (msec) : 100=0.04%, 500=0.08%, 750=11.91%, 1000=31.25%, 2000=54.57% lat (msec) : >=2000=2.15% cpu : usr=0.04%, sys=0.30%, 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 rand-write: (groupid=0, jobs=1): err= 0: pid=145113: Sat Aug 15 13:07:23 2026 write: IOPS=14, BW=58.3KiB/s (59.7kB/s)(10.0MiB/175706msec); 0 zone resets slat (usec): min=49, max=13785, avg=356.18, stdev=968.44 clat (msec): min=251, max=2369, avg=1096.53, stdev=341.41 lat (msec): min=251, max=2369, avg=1096.89, stdev=341.42 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 634], 10.00th=[ 718], 20.00th=[ 818], | 30.00th=[ 894], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1200], 80.00th=[ 1334], 90.00th=[ 1603], 95.00th=[ 1787], | 99.00th=[ 2123], 99.50th=[ 2198], 99.90th=[ 2366], 99.95th=[ 2366], | 99.99th=[ 2366] bw ( KiB/s): min= 7, max= 128, per=25.60%, avg=59.64, stdev=32.56, samples=337 iops : min= 1, max= 32, avg=14.36, stdev= 8.17, samples=337 lat (msec) : 500=0.70%, 750=12.19%, 1000=32.46%, 2000=52.73%, >=2000=1.91% cpu : usr=0.04%, sys=0.29%, ctx=1798, 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=233KiB/s (239kB/s), 58.3KiB/s-58.3KiB/s (59.7kB/s-59.7kB/s), io=40.0MiB (41.9MB), run=175560-175761msec 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=145147: Sat Aug 15 13:09:22 2026 read: IOPS=11, BW=45.7KiB/s (46.8kB/s)(5048KiB/110427msec) slat (usec): min=2888, max=65088, avg=15135.81, stdev=8381.94 clat (msec): min=14, max=1002, avg=427.98, stdev=121.75 lat (msec): min=21, max=1024, avg=443.13, stdev=123.36 clat percentiles (msec): | 1.00th=[ 207], 5.00th=[ 257], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 414], 60.00th=[ 443], | 70.00th=[ 472], 80.00th=[ 514], 90.00th=[ 575], 95.00th=[ 651], | 99.00th=[ 810], 99.50th=[ 860], 99.90th=[ 961], 99.95th=[ 1003], | 99.99th=[ 1003] bw ( KiB/s): min= 7, max= 119, per=25.04%, avg=45.32, stdev=22.78, samples=218 iops : min= 1, max= 29, avg=10.79, stdev= 5.72, samples=218 write: IOPS=11, BW=47.0KiB/s (48.1kB/s)(5192KiB/110427msec); 0 zone resets slat (usec): min=51, max=16563, avg=453.98, stdev=1070.80 clat (msec): min=340, max=2532, avg=926.44, stdev=274.61 lat (msec): min=340, max=2533, avg=926.90, stdev=274.57 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 718], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 944], | 70.00th=[ 1011], 80.00th=[ 1116], 90.00th=[ 1301], 95.00th=[ 1401], | 99.00th=[ 1737], 99.50th=[ 2056], 99.90th=[ 2534], 99.95th=[ 2534], | 99.99th=[ 2534] bw ( KiB/s): min= 7, max= 103, per=24.77%, avg=46.81, stdev=20.12, samples=217 iops : min= 1, max= 25, avg=11.16, stdev= 5.04, samples=217 lat (msec) : 20=0.04%, 50=0.04%, 100=0.04%, 250=2.11%, 500=37.46% lat (msec) : 750=21.64%, 1000=22.42%, 2000=15.94%, >=2000=0.31% cpu : usr=0.10%, sys=0.73%, ctx=4622, 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=145148: Sat Aug 15 13:09:22 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(4976KiB/110367msec) slat (usec): min=3200, max=71127, avg=15056.85, stdev=8534.83 clat (msec): min=8, max=936, avg=427.81, stdev=125.46 lat (msec): min=21, max=1003, avg=442.87, stdev=127.44 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 264], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 388], 50.00th=[ 414], 60.00th=[ 439], | 70.00th=[ 472], 80.00th=[ 514], 90.00th=[ 575], 95.00th=[ 659], | 99.00th=[ 844], 99.50th=[ 885], 99.90th=[ 927], 99.95th=[ 936], | 99.99th=[ 936] bw ( KiB/s): min= 7, max= 136, per=24.67%, avg=44.65, stdev=21.02, samples=218 iops : min= 1, max= 34, avg=10.62, stdev= 5.25, samples=218 write: IOPS=11, BW=47.7KiB/s (48.8kB/s)(5264KiB/110367msec); 0 zone resets slat (usec): min=58, max=15537, avg=474.02, stdev=1072.59 clat (msec): min=226, max=2474, avg=919.86, stdev=275.48 lat (msec): min=226, max=2474, avg=920.33, stdev=275.45 clat percentiles (msec): | 1.00th=[ 447], 5.00th=[ 550], 10.00th=[ 609], 20.00th=[ 701], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1011], 80.00th=[ 1116], 90.00th=[ 1284], 95.00th=[ 1418], | 99.00th=[ 1754], 99.50th=[ 1871], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 120, per=25.35%, avg=47.92, stdev=21.19, samples=215 iops : min= 1, max= 30, avg=11.44, stdev= 5.34, samples=215 lat (msec) : 10=0.04%, 50=0.16%, 100=0.27%, 250=1.48%, 500=37.07% lat (msec) : 750=22.66%, 1000=22.23%, 2000=15.90%, >=2000=0.20% cpu : usr=0.09%, sys=0.78%, ctx=4485, 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=145149: Sat Aug 15 13:09:22 2026 read: IOPS=11, BW=45.1KiB/s (46.2kB/s)(4984KiB/110445msec) slat (usec): min=3391, max=71959, avg=15214.08, stdev=8134.01 clat (msec): min=14, max=1012, avg=424.68, stdev=120.88 lat (msec): min=27, max=1048, avg=439.90, stdev=122.94 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 264], 10.00th=[ 296], 20.00th=[ 334], | 30.00th=[ 363], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 506], 90.00th=[ 575], 95.00th=[ 642], | 99.00th=[ 844], 99.50th=[ 902], 99.90th=[ 1003], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 119, per=25.03%, avg=45.30, stdev=21.42, samples=216 iops : min= 1, max= 29, avg=10.78, stdev= 5.36, samples=216 write: IOPS=11, BW=47.6KiB/s (48.7kB/s)(5256KiB/110445msec); 0 zone resets slat (usec): min=57, max=12301, avg=449.30, stdev=976.03 clat (msec): min=122, max=2454, avg=924.50, stdev=281.10 lat (msec): min=122, max=2454, avg=924.95, stdev=281.06 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 550], 10.00th=[ 617], 20.00th=[ 709], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 885], 60.00th=[ 936], | 70.00th=[ 1020], 80.00th=[ 1150], 90.00th=[ 1301], 95.00th=[ 1401], | 99.00th=[ 1821], 99.50th=[ 2089], 99.90th=[ 2433], 99.95th=[ 2467], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 96, per=24.85%, avg=46.97, stdev=20.31, samples=218 iops : min= 1, max= 24, avg=11.20, stdev= 5.13, samples=218 lat (msec) : 20=0.04%, 50=0.04%, 100=0.08%, 250=1.72%, 500=37.70% lat (msec) : 750=21.88%, 1000=22.23%, 2000=15.98%, >=2000=0.35% cpu : usr=0.11%, sys=0.83%, ctx=4791, 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=145150: Sat Aug 15 13:09:22 2026 read: IOPS=11, BW=45.9KiB/s (47.0kB/s)(5060KiB/110158msec) slat (usec): min=58, max=67010, avg=15089.00, stdev=8599.22 clat (msec): min=19, max=1207, avg=420.56, stdev=126.05 lat (msec): min=25, max=1216, avg=435.65, stdev=127.92 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 255], 10.00th=[ 292], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 502], 90.00th=[ 567], 95.00th=[ 651], | 99.00th=[ 852], 99.50th=[ 869], 99.90th=[ 944], 99.95th=[ 1200], | 99.99th=[ 1200] bw ( KiB/s): min= 7, max= 111, per=25.54%, avg=46.22, stdev=21.12, samples=215 iops : min= 1, max= 27, avg=11.01, stdev= 5.29, samples=215 write: IOPS=11, BW=47.0KiB/s (48.2kB/s)(5180KiB/110158msec); 0 zone resets slat (usec): min=55, max=14626, avg=493.52, stdev=1256.03 clat (msec): min=158, max=2393, avg=933.99, stdev=282.31 lat (msec): min=158, max=2393, avg=934.49, stdev=282.30 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 726], | 30.00th=[ 785], 40.00th=[ 835], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1036], 80.00th=[ 1133], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1921], 99.50th=[ 1972], 99.90th=[ 2366], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 104, per=24.70%, avg=46.69, stdev=20.50, samples=216 iops : min= 1, max= 26, avg=11.13, stdev= 5.17, samples=216 lat (msec) : 20=0.04%, 50=0.08%, 100=0.31%, 250=1.95%, 500=38.63% lat (msec) : 750=18.95%, 1000=22.70%, 2000=17.11%, >=2000=0.23% cpu : usr=0.11%, sys=0.80%, ctx=4638, 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=182KiB/s (186kB/s), 45.1KiB/s-45.9KiB/s (46.2kB/s-47.0kB/s), io=19.6MiB (20.5MB), run=110158-110445msec WRITE: bw=189KiB/s (194kB/s), 47.0KiB/s-47.7KiB/s (48.1kB/s-48.8kB/s), io=20.4MiB (21.4MB), run=110158-110445msec 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=145171: Sat Aug 15 13:09:32 2026 read: IOPS=1, BW=73.5MiB/s (77.1MB/s)(40.0MiB/544msec) slat (nsec): min=27269k, max=27269k, avg=27268918.00, stdev= 0.00 clat (nsec): min=488559k, max=488559k, avg=488558819.00, stdev= 0.00 lat (nsec): min=515848k, max=515848k, avg=515848019.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 489], 5.00th=[ 489], 10.00th=[ 489], 20.00th=[ 489], | 30.00th=[ 489], 40.00th=[ 489], 50.00th=[ 489], 60.00th=[ 489], | 70.00th=[ 489], 80.00th=[ 489], 90.00th=[ 489], 95.00th=[ 489], | 99.00th=[ 489], 99.50th=[ 489], 99.90th=[ 489], 99.95th=[ 489], | 99.99th=[ 489] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.95%, ctx=45, majf=0, minf=9 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=73.5MiB/s (77.1MB/s), 73.5MiB/s-73.5MiB/s (77.1MB/s-77.1MB/s), io=40.0MiB (41.9MB), run=544-544msec 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