== sanity test 398c: run fio to test AIO ================= 10:07:43 (1788530863) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.271345 s, 155 MB/s osc.lustre-OST0000-osc-ffff9a06ecfea000.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=147529: Fri Sep 4 10:10:44 2026 write: IOPS=14, BW=59.1KiB/s (60.6kB/s)(10.0MiB/173143msec); 0 zone resets slat (usec): min=27, max=11702, avg=171.34, stdev=667.82 clat (msec): min=289, max=2406, avg=1080.64, stdev=298.08 lat (msec): min=289, max=2406, avg=1080.81, stdev=298.08 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 584], 10.00th=[ 751], 20.00th=[ 869], | 30.00th=[ 936], 40.00th=[ 995], 50.00th=[ 1062], 60.00th=[ 1133], | 70.00th=[ 1200], 80.00th=[ 1301], 90.00th=[ 1435], 95.00th=[ 1620], | 99.00th=[ 1838], 99.50th=[ 2072], 99.90th=[ 2232], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 7, max= 128, per=25.40%, avg=59.95, stdev=28.92, samples=336 iops : min= 1, max= 32, avg=14.54, stdev= 7.28, samples=336 lat (msec) : 500=3.87%, 750=5.70%, 1000=31.41%, 2000=58.52%, >=2000=0.51% cpu : usr=0.05%, sys=0.19%, ctx=1824, 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=147530: Fri Sep 4 10:10:44 2026 write: IOPS=14, BW=59.2KiB/s (60.7kB/s)(10.0MiB/172862msec); 0 zone resets slat (usec): min=25, max=17845, avg=176.80, stdev=765.86 clat (msec): min=200, max=2698, avg=1079.17, stdev=303.88 lat (msec): min=201, max=2698, avg=1079.35, stdev=303.89 clat percentiles (msec): | 1.00th=[ 372], 5.00th=[ 575], 10.00th=[ 768], 20.00th=[ 869], | 30.00th=[ 936], 40.00th=[ 986], 50.00th=[ 1053], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1318], 90.00th=[ 1485], 95.00th=[ 1636], | 99.00th=[ 1821], 99.50th=[ 1921], 99.90th=[ 2433], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 223, per=25.87%, avg=61.05, stdev=30.21, samples=330 iops : min= 1, max= 55, avg=14.82, stdev= 7.59, samples=330 lat (msec) : 250=0.62%, 500=3.09%, 750=5.74%, 1000=32.73%, 2000=57.50% lat (msec) : >=2000=0.31% cpu : usr=0.03%, sys=0.17%, ctx=1740, 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=147531: Fri Sep 4 10:10:44 2026 write: IOPS=14, BW=59.5KiB/s (60.0kB/s)(10.0MiB/171999msec); 0 zone resets slat (usec): min=29, max=15379, avg=170.50, stdev=703.67 clat (msec): min=228, max=2589, avg=1074.03, stdev=304.86 lat (msec): min=228, max=2590, avg=1074.20, stdev=304.87 clat percentiles (msec): | 1.00th=[ 342], 5.00th=[ 575], 10.00th=[ 743], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1003], 50.00th=[ 1053], 60.00th=[ 1116], | 70.00th=[ 1200], 80.00th=[ 1284], 90.00th=[ 1435], 95.00th=[ 1603], | 99.00th=[ 1921], 99.50th=[ 2005], 99.90th=[ 2500], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 254, per=25.78%, avg=60.85, stdev=30.99, samples=331 iops : min= 1, max= 63, avg=14.76, stdev= 7.80, samples=331 lat (msec) : 250=0.62%, 500=2.58%, 750=7.42%, 1000=29.53%, 2000=59.26% lat (msec) : >=2000=0.59% cpu : usr=0.03%, sys=0.16%, ctx=1368, 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=147532: Fri Sep 4 10:10:44 2026 write: IOPS=14, BW=59.1KiB/s (60.6kB/s)(10.0MiB/173144msec); 0 zone resets slat (usec): min=29, max=11964, avg=207.37, stdev=795.70 clat (msec): min=145, max=2711, avg=1080.80, stdev=300.06 lat (msec): min=145, max=2712, avg=1081.01, stdev=300.04 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 575], 10.00th=[ 760], 20.00th=[ 860], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1053], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1318], 90.00th=[ 1452], 95.00th=[ 1586], | 99.00th=[ 1838], 99.50th=[ 1905], 99.90th=[ 2534], 99.95th=[ 2702], | 99.99th=[ 2702] bw ( KiB/s): min= 7, max= 175, per=25.48%, avg=60.13, stdev=33.86, samples=335 iops : min= 1, max= 43, avg=14.59, stdev= 8.48, samples=335 lat (msec) : 250=0.12%, 500=3.87%, 750=5.20%, 1000=31.99%, 2000=58.48% lat (msec) : >=2000=0.35% cpu : usr=0.04%, sys=0.20%, ctx=1835, 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 Run status group 0 (all jobs): WRITE: bw=237KiB/s (242kB/s), 59.1KiB/s-59.5KiB/s (60.6kB/s-60.0kB/s), io=40.0MiB (41.9MB), run=171999-173144msec 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=147569: Fri Sep 4 10:12:49 2026 read: IOPS=11, BW=44.1KiB/s (45.2kB/s)(5048KiB/114428msec) slat (usec): min=29, max=60332, avg=13709.30, stdev=7627.39 clat (msec): min=19, max=1326, avg=439.45, stdev=127.59 lat (msec): min=27, max=1330, avg=453.16, stdev=128.57 clat percentiles (msec): | 1.00th=[ 28], 5.00th=[ 279], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 380], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 464], | 70.00th=[ 493], 80.00th=[ 527], 90.00th=[ 584], 95.00th=[ 625], | 99.00th=[ 785], 99.50th=[ 844], 99.90th=[ 1284], 99.95th=[ 1334], | 99.99th=[ 1334] bw ( KiB/s): min= 7, max= 119, per=25.10%, avg=43.67, stdev=20.82, samples=226 iops : min= 1, max= 29, avg=10.44, stdev= 5.27, samples=226 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5192KiB/114428msec); 0 zone resets slat (usec): min=29, max=14649, avg=240.29, stdev=817.93 clat (msec): min=174, max=1677, avg=968.50, stdev=258.17 lat (msec): min=174, max=1677, avg=968.74, stdev=258.16 clat percentiles (msec): | 1.00th=[ 309], 5.00th=[ 575], 10.00th=[ 651], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 902], 50.00th=[ 986], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1167], 90.00th=[ 1301], 95.00th=[ 1418], | 99.00th=[ 1603], 99.50th=[ 1636], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 95, per=24.99%, avg=45.23, stdev=19.25, samples=224 iops : min= 1, max= 23, avg=10.83, stdev= 4.86, samples=224 lat (msec) : 20=0.04%, 50=0.59%, 100=0.35%, 250=0.74%, 500=35.27% lat (msec) : 750=21.99%, 1000=17.34%, 2000=23.67% cpu : usr=0.08%, sys=0.48%, ctx=4290, 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=147570: Fri Sep 4 10:12:49 2026 read: IOPS=10, BW=43.3KiB/s (44.4kB/s)(4976KiB/114843msec) slat (usec): min=2981, max=61977, avg=14193.10, stdev=7750.32 clat (msec): min=19, max=807, avg=442.04, stdev=110.66 lat (msec): min=31, max=829, avg=456.24, stdev=111.37 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 292], 10.00th=[ 321], 20.00th=[ 351], | 30.00th=[ 384], 40.00th=[ 409], 50.00th=[ 435], 60.00th=[ 468], | 70.00th=[ 498], 80.00th=[ 527], 90.00th=[ 575], 95.00th=[ 625], | 99.00th=[ 751], 99.50th=[ 785], 99.90th=[ 802], 99.95th=[ 810], | 99.99th=[ 810] bw ( KiB/s): min= 5, max= 104, per=24.60%, avg=42.80, stdev=20.15, samples=228 iops : min= 1, max= 26, avg=10.22, stdev= 5.05, samples=228 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5264KiB/114843msec); 0 zone resets slat (usec): min=33, max=14287, avg=237.27, stdev=819.34 clat (msec): min=314, max=1769, avg=961.67, stdev=241.42 lat (msec): min=314, max=1770, avg=961.90, stdev=241.45 clat percentiles (msec): | 1.00th=[ 456], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1150], 90.00th=[ 1250], 95.00th=[ 1401], | 99.00th=[ 1603], 99.50th=[ 1636], 99.90th=[ 1720], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 119, per=25.06%, avg=45.37, stdev=20.13, samples=227 iops : min= 1, max= 29, avg=10.86, stdev= 5.08, samples=227 lat (msec) : 20=0.04%, 50=0.16%, 100=0.39%, 250=0.51%, 500=34.77% lat (msec) : 750=22.42%, 1000=19.02%, 2000=22.70% cpu : usr=0.09%, sys=0.53%, ctx=4250, 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=147571: Fri Sep 4 10:12:49 2026 read: IOPS=10, BW=43.4KiB/s (44.4kB/s)(4984KiB/114842msec) slat (usec): min=2979, max=74195, avg=13951.87, stdev=8144.28 clat (msec): min=19, max=839, avg=442.11, stdev=109.33 lat (msec): min=32, max=864, avg=456.07, stdev=110.19 clat percentiles (msec): | 1.00th=[ 213], 5.00th=[ 279], 10.00th=[ 317], 20.00th=[ 355], | 30.00th=[ 384], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 489], 80.00th=[ 523], 90.00th=[ 575], 95.00th=[ 617], | 99.00th=[ 760], 99.50th=[ 776], 99.90th=[ 844], 99.95th=[ 844], | 99.99th=[ 844] bw ( KiB/s): min= 7, max= 111, per=24.93%, avg=43.38, stdev=20.31, samples=226 iops : min= 1, max= 27, avg=10.36, stdev= 5.10, samples=226 write: IOPS=11, BW=45.8KiB/s (46.9kB/s)(5256KiB/114842msec); 0 zone resets slat (usec): min=32, max=20364, avg=231.89, stdev=875.56 clat (msec): min=255, max=1790, avg=962.33, stdev=250.12 lat (msec): min=255, max=1790, avg=962.56, stdev=250.08 clat percentiles (msec): | 1.00th=[ 460], 5.00th=[ 550], 10.00th=[ 642], 20.00th=[ 743], | 30.00th=[ 818], 40.00th=[ 894], 50.00th=[ 969], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1636], 99.90th=[ 1770], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 104, per=25.04%, avg=45.32, stdev=20.54, samples=226 iops : min= 1, max= 26, avg=10.85, stdev= 5.20, samples=226 lat (msec) : 20=0.04%, 50=0.04%, 100=0.23%, 250=0.78%, 500=36.13% lat (msec) : 750=21.45%, 1000=18.32%, 2000=23.01% cpu : usr=0.08%, sys=0.52%, ctx=3913, 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=147572: Fri Sep 4 10:12:49 2026 read: IOPS=11, BW=44.1KiB/s (45.1kB/s)(5060KiB/114838msec) slat (usec): min=2643, max=56870, avg=14161.41, stdev=7827.05 clat (msec): min=18, max=1046, avg=445.34, stdev=110.42 lat (msec): min=22, max=1059, avg=459.51, stdev=111.46 clat percentiles (msec): | 1.00th=[ 201], 5.00th=[ 296], 10.00th=[ 321], 20.00th=[ 359], | 30.00th=[ 388], 40.00th=[ 414], 50.00th=[ 439], 60.00th=[ 464], | 70.00th=[ 489], 80.00th=[ 523], 90.00th=[ 584], 95.00th=[ 642], | 99.00th=[ 776], 99.50th=[ 810], 99.90th=[ 877], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 5, max= 103, per=25.49%, avg=44.35, stdev=18.37, samples=224 iops : min= 1, max= 25, avg=10.61, stdev= 4.61, samples=224 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5180KiB/114838msec); 0 zone resets slat (usec): min=33, max=14287, avg=230.50, stdev=735.22 clat (msec): min=367, max=1676, avg=966.32, stdev=249.72 lat (msec): min=367, max=1676, avg=966.55, stdev=249.73 clat percentiles (msec): | 1.00th=[ 451], 5.00th=[ 558], 10.00th=[ 642], 20.00th=[ 760], | 30.00th=[ 827], 40.00th=[ 894], 50.00th=[ 969], 60.00th=[ 1036], | 70.00th=[ 1099], 80.00th=[ 1150], 90.00th=[ 1267], 95.00th=[ 1401], | 99.00th=[ 1636], 99.50th=[ 1653], 99.90th=[ 1670], 99.95th=[ 1670], | 99.99th=[ 1670] bw ( KiB/s): min= 7, max= 104, per=24.61%, avg=44.55, stdev=19.05, samples=227 iops : min= 1, max= 26, avg=10.66, stdev= 4.82, samples=227 lat (msec) : 20=0.08%, 50=0.12%, 100=0.08%, 250=0.59%, 500=36.64% lat (msec) : 750=20.70%, 1000=19.06%, 2000=22.73% cpu : usr=0.08%, sys=0.53%, ctx=4520, 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=175KiB/s (179kB/s), 43.3KiB/s-44.1KiB/s (44.4kB/s-45.2kB/s), io=19.6MiB (20.5MB), run=114428-114843msec WRITE: bw=182KiB/s (186kB/s), 45.1KiB/s-45.8KiB/s (46.2kB/s-46.9kB/s), io=20.4MiB (21.4MB), run=114428-114843msec 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=147592: Fri Sep 4 10:13:00 2026 read: IOPS=1, BW=60.2MiB/s (63.2MB/s)(40.0MiB/664msec) slat (nsec): min=118077k, max=118077k, avg=118077372.00, stdev= 0.00 clat (nsec): min=516209k, max=516209k, avg=516209147.00, stdev= 0.00 lat (nsec): min=634292k, max=634292k, avg=634291948.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 518], 50.00th=[ 518], 60.00th=[ 518], | 70.00th=[ 518], 80.00th=[ 518], 90.00th=[ 518], 95.00th=[ 518], | 99.00th=[ 518], 99.50th=[ 518], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 518] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.96%, 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=60.2MiB/s (63.2MB/s), 60.2MiB/s-60.2MiB/s (63.2MB/s-63.2MB/s), io=40.0MiB (41.9MB), run=664-664msec 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