== sanity test 398c: run fio to test AIO ================= 00:22:49 (1787113369) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.593629 s, 70.7 MB/s osc.lustre-OST0000-osc-ffff8e7fd138e000.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=146212: Wed Aug 19 00:25:53 2026 write: IOPS=14, BW=59.8KiB/s (61.3kB/s)(10.0MiB/171148msec); 0 zone resets slat (usec): min=44, max=17016, avg=398.23, stdev=1049.20 clat (msec): min=156, max=2483, avg=1068.91, stdev=326.60 lat (msec): min=157, max=2483, avg=1069.31, stdev=326.61 clat percentiles (msec): | 1.00th=[ 347], 5.00th=[ 625], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1036], 60.00th=[ 1099], | 70.00th=[ 1167], 80.00th=[ 1301], 90.00th=[ 1469], 95.00th=[ 1670], | 99.00th=[ 2072], 99.50th=[ 2198], 99.90th=[ 2467], 99.95th=[ 2467], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 224, per=24.97%, avg=59.43, stdev=27.65, samples=338 iops : min= 1, max= 56, avg=14.34, stdev= 6.93, samples=338 lat (msec) : 250=0.62%, 500=1.88%, 750=9.41%, 1000=34.02%, 2000=52.38% lat (msec) : >=2000=1.68% cpu : usr=0.06%, sys=0.31%, ctx=1992, 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=146213: Wed Aug 19 00:25:53 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171582msec); 0 zone resets slat (usec): min=52, max=16176, avg=447.97, stdev=1092.07 clat (msec): min=289, max=2495, avg=1070.95, stdev=324.90 lat (msec): min=290, max=2495, avg=1071.40, stdev=324.89 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 609], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1028], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1485], 95.00th=[ 1703], | 99.00th=[ 2089], 99.50th=[ 2265], 99.90th=[ 2500], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 190, per=24.99%, avg=59.47, stdev=27.83, samples=338 iops : min= 1, max= 47, avg=14.36, stdev= 7.00, samples=338 lat (msec) : 500=2.38%, 750=10.08%, 1000=33.36%, 2000=52.73%, >=2000=1.45% cpu : usr=0.06%, sys=0.35%, ctx=2306, 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=146214: Wed Aug 19 00:25:53 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171548msec); 0 zone resets slat (usec): min=47, max=24354, avg=464.61, stdev=1389.05 clat (msec): min=149, max=2306, avg=1070.91, stdev=322.00 lat (msec): min=158, max=2308, avg=1071.39, stdev=321.98 clat percentiles (msec): | 1.00th=[ 397], 5.00th=[ 642], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 894], 40.00th=[ 953], 50.00th=[ 1028], 60.00th=[ 1099], | 70.00th=[ 1183], 80.00th=[ 1301], 90.00th=[ 1485], 95.00th=[ 1703], | 99.00th=[ 2106], 99.50th=[ 2140], 99.90th=[ 2299], 99.95th=[ 2299], | 99.99th=[ 2299] bw ( KiB/s): min= 7, max= 128, per=24.99%, avg=59.48, stdev=30.16, samples=338 iops : min= 1, max= 32, avg=14.36, stdev= 7.55, samples=338 lat (msec) : 250=0.20%, 500=2.38%, 750=9.84%, 1000=32.93%, 2000=53.12% lat (msec) : >=2000=1.52% cpu : usr=0.06%, sys=0.35%, ctx=2352, 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=146215: Wed Aug 19 00:25:53 2026 write: IOPS=14, BW=59.7KiB/s (61.1kB/s)(10.0MiB/171547msec); 0 zone resets slat (usec): min=50, max=18548, avg=441.02, stdev=1185.92 clat (msec): min=97, max=2451, avg=1070.94, stdev=326.13 lat (msec): min=100, max=2451, avg=1071.39, stdev=326.13 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 634], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 894], 40.00th=[ 961], 50.00th=[ 1036], 60.00th=[ 1116], | 70.00th=[ 1183], 80.00th=[ 1284], 90.00th=[ 1469], 95.00th=[ 1720], | 99.00th=[ 2106], 99.50th=[ 2165], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2467] bw ( KiB/s): min= 7, max= 151, per=25.37%, avg=60.38, stdev=30.62, samples=333 iops : min= 1, max= 37, avg=14.58, stdev= 7.69, samples=333 lat (msec) : 100=0.04%, 250=0.27%, 500=2.15%, 750=10.00%, 1000=32.11% lat (msec) : 2000=53.91%, >=2000=1.52% cpu : usr=0.06%, sys=0.37%, ctx=2259, 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=239KiB/s (244kB/s), 59.7KiB/s-59.8KiB/s (61.1kB/s-61.3kB/s), io=40.0MiB (41.9MB), run=171148-171582msec 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=146249: Wed Aug 19 00:27:58 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5048KiB/115070msec) slat (usec): min=50, max=71011, avg=15931.44, stdev=8704.20 clat (msec): min=35, max=1444, avg=439.45, stdev=130.45 lat (msec): min=47, max=1459, avg=455.39, stdev=132.19 clat percentiles (msec): | 1.00th=[ 188], 5.00th=[ 266], 10.00th=[ 300], 20.00th=[ 347], | 30.00th=[ 372], 40.00th=[ 397], 50.00th=[ 426], 60.00th=[ 451], | 70.00th=[ 485], 80.00th=[ 527], 90.00th=[ 592], 95.00th=[ 667], | 99.00th=[ 802], 99.50th=[ 877], 99.90th=[ 1318], 99.95th=[ 1452], | 99.99th=[ 1452] bw ( KiB/s): min= 7, max= 112, per=25.21%, avg=43.62, stdev=21.36, samples=226 iops : min= 1, max= 28, avg=10.34, stdev= 5.39, samples=226 write: IOPS=11, BW=45.1KiB/s (46.2kB/s)(5192KiB/115070msec); 0 zone resets slat (usec): min=52, max=35721, avg=550.25, stdev=1464.19 clat (msec): min=150, max=2073, avg=973.93, stdev=293.67 lat (msec): min=150, max=2073, avg=974.48, stdev=293.70 clat percentiles (msec): | 1.00th=[ 368], 5.00th=[ 514], 10.00th=[ 625], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1737], 99.50th=[ 1821], 99.90th=[ 2072], 99.95th=[ 2072], | 99.99th=[ 2072] bw ( KiB/s): min= 7, max= 104, per=24.97%, avg=44.94, stdev=22.56, samples=225 iops : min= 1, max= 26, avg=10.67, stdev= 5.65, samples=225 lat (msec) : 50=0.08%, 100=0.16%, 250=1.80%, 500=36.64%, 750=20.82% lat (msec) : 1000=18.63%, 2000=21.76%, >=2000=0.12% cpu : usr=0.12%, sys=0.72%, ctx=4793, 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=146250: Wed Aug 19 00:27:58 2026 read: IOPS=10, BW=42.9KiB/s (43.0kB/s)(4976KiB/115902msec) slat (usec): min=3432, max=71670, avg=15902.15, stdev=8873.42 clat (msec): min=32, max=957, avg=445.50, stdev=121.93 lat (msec): min=48, max=988, avg=461.41, stdev=123.37 clat percentiles (msec): | 1.00th=[ 199], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 355], | 30.00th=[ 380], 40.00th=[ 405], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 489], 80.00th=[ 535], 90.00th=[ 617], 95.00th=[ 667], | 99.00th=[ 776], 99.50th=[ 844], 99.90th=[ 944], 99.95th=[ 961], | 99.99th=[ 961] bw ( KiB/s): min= 7, max= 110, per=24.67%, avg=42.68, stdev=21.12, samples=227 iops : min= 1, max= 27, avg=10.10, stdev= 5.33, samples=227 write: IOPS=11, BW=45.4KiB/s (46.5kB/s)(5264KiB/115902msec); 0 zone resets slat (usec): min=52, max=17812, avg=553.22, stdev=1368.75 clat (msec): min=271, max=1825, avg=969.70, stdev=279.02 lat (msec): min=272, max=1825, avg=970.26, stdev=278.96 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 550], 10.00th=[ 625], 20.00th=[ 735], | 30.00th=[ 810], 40.00th=[ 885], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1703], 99.50th=[ 1787], 99.90th=[ 1804], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 104, per=24.84%, avg=44.71, stdev=19.58, samples=230 iops : min= 1, max= 26, avg=10.61, stdev= 4.92, samples=230 lat (msec) : 50=0.04%, 100=0.23%, 250=1.25%, 500=35.66%, 750=22.38% lat (msec) : 1000=18.48%, 2000=21.95% cpu : usr=0.10%, sys=0.78%, ctx=4959, 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=146251: Wed Aug 19 00:27:58 2026 read: IOPS=10, BW=42.0KiB/s (43.0kB/s)(4984KiB/115997msec) slat (usec): min=2781, max=64340, avg=15650.66, stdev=8111.25 clat (msec): min=29, max=870, avg=435.78, stdev=116.60 lat (msec): min=39, max=901, avg=451.44, stdev=117.82 clat percentiles (msec): | 1.00th=[ 180], 5.00th=[ 271], 10.00th=[ 305], 20.00th=[ 342], | 30.00th=[ 368], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 485], 80.00th=[ 531], 90.00th=[ 584], 95.00th=[ 642], | 99.00th=[ 768], 99.50th=[ 810], 99.90th=[ 860], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 120, per=24.94%, avg=43.14, stdev=21.63, samples=226 iops : min= 1, max= 30, avg=10.23, stdev= 5.44, samples=226 write: IOPS=11, BW=45.3KiB/s (46.4kB/s)(5256KiB/115997msec); 0 zone resets slat (usec): min=55, max=18064, avg=539.25, stdev=1199.65 clat (msec): min=214, max=1789, avg=981.37, stdev=279.38 lat (msec): min=214, max=1789, avg=981.92, stdev=279.37 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 542], 10.00th=[ 642], 20.00th=[ 751], | 30.00th=[ 827], 40.00th=[ 902], 50.00th=[ 961], 60.00th=[ 1020], | 70.00th=[ 1116], 80.00th=[ 1217], 90.00th=[ 1368], 95.00th=[ 1485], | 99.00th=[ 1653], 99.50th=[ 1754], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 7, max= 103, per=24.69%, avg=44.45, stdev=19.69, samples=230 iops : min= 1, max= 25, avg=10.55, stdev= 4.95, samples=230 lat (msec) : 50=0.08%, 100=0.31%, 250=1.29%, 500=35.86%, 750=20.39% lat (msec) : 1000=19.65%, 2000=22.42% cpu : usr=0.11%, sys=0.80%, ctx=5026, 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=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=146252: Wed Aug 19 00:27:58 2026 read: IOPS=10, BW=43.9KiB/s (44.9kB/s)(5060KiB/115366msec) slat (usec): min=3276, max=85053, avg=15423.86, stdev=8740.33 clat (msec): min=17, max=1209, avg=444.54, stdev=125.40 lat (msec): min=21, max=1222, avg=459.98, stdev=127.12 clat percentiles (msec): | 1.00th=[ 186], 5.00th=[ 275], 10.00th=[ 313], 20.00th=[ 351], | 30.00th=[ 372], 40.00th=[ 401], 50.00th=[ 430], 60.00th=[ 456], | 70.00th=[ 498], 80.00th=[ 542], 90.00th=[ 600], 95.00th=[ 676], | 99.00th=[ 776], 99.50th=[ 835], 99.90th=[ 1070], 99.95th=[ 1217], | 99.99th=[ 1217] bw ( KiB/s): min= 7, max= 111, per=25.52%, avg=44.16, stdev=19.89, samples=224 iops : min= 1, max= 27, avg=10.47, stdev= 5.02, samples=224 write: IOPS=11, BW=44.9KiB/s (45.0kB/s)(5180KiB/115366msec); 0 zone resets slat (usec): min=53, max=22464, avg=563.39, stdev=1409.98 clat (msec): min=183, max=1851, avg=972.41, stdev=279.97 lat (msec): min=183, max=1853, avg=972.97, stdev=279.97 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 542], 10.00th=[ 617], 20.00th=[ 743], | 30.00th=[ 827], 40.00th=[ 885], 50.00th=[ 953], 60.00th=[ 1028], | 70.00th=[ 1099], 80.00th=[ 1200], 90.00th=[ 1351], 95.00th=[ 1485], | 99.00th=[ 1670], 99.50th=[ 1720], 99.90th=[ 1854], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 88, per=24.58%, avg=44.24, stdev=17.93, samples=228 iops : min= 1, max= 22, avg=10.50, stdev= 4.49, samples=228 lat (msec) : 20=0.04%, 50=0.16%, 100=0.08%, 250=1.29%, 500=35.20% lat (msec) : 750=22.38%, 1000=18.87%, 2000=21.99% cpu : usr=0.10%, sys=0.75%, 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=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=173KiB/s (177kB/s), 42.9KiB/s-43.9KiB/s (43.0kB/s-44.9kB/s), io=19.6MiB (20.5MB), run=115070-115997msec WRITE: bw=180KiB/s (184kB/s), 44.9KiB/s-45.4KiB/s (45.0kB/s-46.5kB/s), io=20.4MiB (21.4MB), run=115070-115997msec 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=146275: Wed Aug 19 00:28:07 2026 read: IOPS=2, BW=84.7MiB/s (88.9MB/s)(40.0MiB/472msec) slat (nsec): min=32362k, max=32362k, avg=32362128.00, stdev= 0.00 clat (nsec): min=421857k, max=421857k, avg=421856963.00, stdev= 0.00 lat (nsec): min=454224k, max=454224k, avg=454224025.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 422], 10.00th=[ 422], 20.00th=[ 422], | 30.00th=[ 422], 40.00th=[ 422], 50.00th=[ 422], 60.00th=[ 422], | 70.00th=[ 422], 80.00th=[ 422], 90.00th=[ 422], 95.00th=[ 422], | 99.00th=[ 422], 99.50th=[ 422], 99.90th=[ 422], 99.95th=[ 422], | 99.99th=[ 422] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.76%, ctx=10, majf=0, minf=7 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=84.7MiB/s (88.9MB/s), 84.7MiB/s-84.7MiB/s (88.9MB/s-88.9MB/s), io=40.0MiB (41.9MB), run=472-472msec 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