== sanity test 398c: run fio to test AIO ================= 07:03:11 (1788606191) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.380199 s, 110 MB/s osc.lustre-OST0000-osc-ffff9b3731673800.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=149711: Sat Sep 5 07:05:48 2026 write: IOPS=17, BW=68.6KiB/s (70.3kB/s)(10.0MiB/149202msec); 0 zone resets slat (usec): min=35, max=25120, avg=262.16, stdev=881.25 clat (msec): min=195, max=1763, avg=931.31, stdev=252.72 lat (msec): min=195, max=1763, avg=931.57, stdev=252.72 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 575], 10.00th=[ 659], 20.00th=[ 735], | 30.00th=[ 785], 40.00th=[ 844], 50.00th=[ 919], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1586], 99.50th=[ 1653], 99.90th=[ 1754], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 254, per=25.03%, avg=68.58, stdev=32.14, samples=294 iops : min= 1, max= 63, avg=16.73, stdev= 8.05, samples=294 lat (msec) : 250=0.66%, 500=3.05%, 750=18.36%, 1000=41.99%, 2000=35.94% cpu : usr=0.05%, sys=0.29%, ctx=2039, 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=149712: Sat Sep 5 07:05:48 2026 write: IOPS=17, BW=68.7KiB/s (70.3kB/s)(10.0MiB/149142msec); 0 zone resets slat (usec): min=36, max=24871, avg=255.96, stdev=771.14 clat (msec): min=131, max=1940, avg=931.00, stdev=255.14 lat (msec): min=131, max=1940, avg=931.26, stdev=255.15 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 584], 10.00th=[ 651], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 978], | 70.00th=[ 1045], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1368], | 99.00th=[ 1620], 99.50th=[ 1703], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1938] bw ( KiB/s): min= 7, max= 246, per=25.03%, avg=68.59, stdev=30.39, samples=294 iops : min= 1, max= 61, avg=16.73, stdev= 7.63, samples=294 lat (msec) : 250=0.74%, 500=2.62%, 750=19.41%, 1000=41.45%, 2000=35.78% cpu : usr=0.04%, sys=0.28%, ctx=2476, 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=149713: Sat Sep 5 07:05:48 2026 write: IOPS=17, BW=68.8KiB/s (70.4kB/s)(10.0MiB/148935msec); 0 zone resets slat (usec): min=34, max=29405, avg=272.42, stdev=1020.25 clat (msec): min=140, max=1950, avg=930.16, stdev=257.90 lat (msec): min=141, max=1950, avg=930.43, stdev=257.91 clat percentiles (msec): | 1.00th=[ 230], 5.00th=[ 592], 10.00th=[ 667], 20.00th=[ 735], | 30.00th=[ 793], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 969], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1267], 95.00th=[ 1385], | 99.00th=[ 1620], 99.50th=[ 1687], 99.90th=[ 1938], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 8, max= 254, per=25.00%, avg=68.50, stdev=33.97, samples=294 iops : min= 2, max= 63, avg=16.71, stdev= 8.50, samples=294 lat (msec) : 250=1.25%, 500=2.54%, 750=18.05%, 1000=42.27%, 2000=35.90% cpu : usr=0.05%, sys=0.28%, ctx=2173, 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=149714: Sat Sep 5 07:05:48 2026 write: IOPS=17, BW=68.7KiB/s (70.3kB/s)(10.0MiB/149151msec); 0 zone resets slat (usec): min=35, max=17478, avg=279.79, stdev=934.49 clat (msec): min=98, max=1755, avg=931.07, stdev=251.78 lat (msec): min=98, max=1755, avg=931.35, stdev=251.76 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 584], 10.00th=[ 667], 20.00th=[ 735], | 30.00th=[ 802], 40.00th=[ 852], 50.00th=[ 919], 60.00th=[ 978], | 70.00th=[ 1053], 80.00th=[ 1133], 90.00th=[ 1250], 95.00th=[ 1351], | 99.00th=[ 1636], 99.50th=[ 1703], 99.90th=[ 1754], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 198, per=25.10%, avg=68.78, stdev=35.97, samples=293 iops : min= 1, max= 49, avg=16.77, stdev= 9.01, samples=293 lat (msec) : 100=0.08%, 250=0.82%, 500=2.89%, 750=18.09%, 1000=41.37% lat (msec) : 2000=36.76% cpu : usr=0.05%, sys=0.27%, ctx=2109, 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=275KiB/s (281kB/s), 68.6KiB/s-68.8KiB/s (70.3kB/s-70.4kB/s), io=40.0MiB (41.9MB), run=148935-149202msec 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=149746: Sat Sep 5 07:07:45 2026 read: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5048KiB/106534msec) slat (usec): min=2250, max=74502, avg=15121.80, stdev=9326.97 clat (msec): min=19, max=1044, avg=418.19, stdev=124.88 lat (msec): min=27, max=1072, avg=433.31, stdev=127.15 clat percentiles (msec): | 1.00th=[ 197], 5.00th=[ 249], 10.00th=[ 288], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 502], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 844], 99.50th=[ 936], 99.90th=[ 1011], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 119, per=25.11%, avg=47.22, stdev=21.55, samples=209 iops : min= 1, max= 29, avg=11.31, stdev= 5.41, samples=209 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5192KiB/106534msec); 0 zone resets slat (usec): min=44, max=22520, avg=328.72, stdev=1002.58 clat (msec): min=283, max=1980, avg=888.27, stdev=237.63 lat (msec): min=284, max=1980, avg=888.60, stdev=237.69 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 567], 10.00th=[ 617], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 802], 50.00th=[ 860], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1200], 95.00th=[ 1351], | 99.00th=[ 1485], 99.50th=[ 1720], 99.90th=[ 1854], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 104, per=24.66%, avg=48.32, stdev=20.78, samples=210 iops : min= 1, max= 26, avg=11.60, stdev= 5.25, samples=210 lat (msec) : 20=0.04%, 50=0.16%, 100=0.12%, 250=2.19%, 500=38.05% lat (msec) : 750=24.18%, 1000=20.66%, 2000=14.61% cpu : usr=0.11%, sys=0.73%, ctx=4974, 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=149747: Sat Sep 5 07:07:45 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(4976KiB/106583msec) slat (usec): min=2560, max=76402, avg=15107.38, stdev=8358.33 clat (msec): min=17, max=1010, avg=422.48, stdev=125.72 lat (msec): min=25, max=1027, avg=437.59, stdev=127.37 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 251], 10.00th=[ 284], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 380], 50.00th=[ 405], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 506], 90.00th=[ 592], 95.00th=[ 667], | 99.00th=[ 810], 99.50th=[ 844], 99.90th=[ 961], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 104, per=24.58%, avg=46.22, stdev=21.42, samples=210 iops : min= 1, max= 26, avg=11.07, stdev= 5.41, samples=210 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5264KiB/106583msec); 0 zone resets slat (usec): min=41, max=22664, avg=354.36, stdev=1031.55 clat (msec): min=283, max=1845, avg=879.13, stdev=242.28 lat (msec): min=283, max=1845, avg=879.50, stdev=242.34 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 523], 10.00th=[ 600], 20.00th=[ 676], | 30.00th=[ 726], 40.00th=[ 793], 50.00th=[ 860], 60.00th=[ 919], | 70.00th=[ 986], 80.00th=[ 1053], 90.00th=[ 1183], 95.00th=[ 1334], | 99.00th=[ 1552], 99.50th=[ 1737], 99.90th=[ 1787], 99.95th=[ 1854], | 99.99th=[ 1854] bw ( KiB/s): min= 7, max= 120, per=25.05%, avg=49.09, stdev=19.90, samples=210 iops : min= 1, max= 30, avg=11.78, stdev= 5.04, samples=210 lat (msec) : 20=0.04%, 50=0.20%, 100=0.23%, 250=1.72%, 500=37.97% lat (msec) : 750=24.18%, 1000=21.13%, 2000=14.53% cpu : usr=0.10%, sys=0.73%, ctx=4622, 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=149748: Sat Sep 5 07:07:45 2026 read: IOPS=11, BW=46.8KiB/s (47.9kB/s)(4984KiB/106518msec) slat (usec): min=2633, max=81664, avg=14965.51, stdev=8996.55 clat (msec): min=12, max=1047, avg=415.35, stdev=123.56 lat (msec): min=16, max=1059, avg=430.32, stdev=125.76 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 251], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 575], 95.00th=[ 642], | 99.00th=[ 793], 99.50th=[ 844], 99.90th=[ 936], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 128, per=24.77%, avg=46.57, stdev=24.36, samples=210 iops : min= 1, max= 32, avg=11.15, stdev= 6.12, samples=210 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5256KiB/106518msec); 0 zone resets slat (usec): min=46, max=18454, avg=319.02, stdev=984.59 clat (msec): min=306, max=1872, avg=885.67, stdev=238.75 lat (msec): min=306, max=1872, avg=885.99, stdev=238.73 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 550], 10.00th=[ 600], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 802], 50.00th=[ 869], 60.00th=[ 936], | 70.00th=[ 995], 80.00th=[ 1083], 90.00th=[ 1183], 95.00th=[ 1284], | 99.00th=[ 1536], 99.50th=[ 1620], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 112, per=24.75%, avg=48.51, stdev=20.31, samples=211 iops : min= 1, max= 28, avg=11.64, stdev= 5.15, samples=211 lat (msec) : 20=0.04%, 50=0.12%, 100=0.27%, 250=2.07%, 500=38.20% lat (msec) : 750=24.22%, 1000=19.92%, 2000=15.16% cpu : usr=0.12%, sys=0.72%, ctx=4601, 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=149749: Sat Sep 5 07:07:45 2026 read: IOPS=11, BW=47.7KiB/s (48.9kB/s)(5060KiB/106044msec) slat (usec): min=76, max=69049, avg=14736.22, stdev=8869.31 clat (msec): min=14, max=996, avg=420.79, stdev=120.03 lat (msec): min=19, max=1014, avg=435.54, stdev=122.12 clat percentiles (msec): | 1.00th=[ 182], 5.00th=[ 257], 10.00th=[ 292], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 384], 50.00th=[ 409], 60.00th=[ 435], | 70.00th=[ 460], 80.00th=[ 510], 90.00th=[ 575], 95.00th=[ 634], | 99.00th=[ 793], 99.50th=[ 844], 99.90th=[ 995], 99.95th=[ 995], | 99.99th=[ 995] bw ( KiB/s): min= 7, max= 120, per=25.31%, avg=47.58, stdev=21.54, samples=208 iops : min= 1, max= 30, avg=11.40, stdev= 5.44, samples=208 write: IOPS=12, BW=48.8KiB/s (50.0kB/s)(5180KiB/106044msec); 0 zone resets slat (usec): min=56, max=12856, avg=342.17, stdev=886.40 clat (msec): min=141, max=1907, avg=883.22, stdev=245.55 lat (msec): min=141, max=1907, avg=883.56, stdev=245.51 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 542], 10.00th=[ 609], 20.00th=[ 684], | 30.00th=[ 735], 40.00th=[ 793], 50.00th=[ 852], 60.00th=[ 919], | 70.00th=[ 995], 80.00th=[ 1070], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1703], 99.90th=[ 1905], 99.95th=[ 1905], | 99.99th=[ 1905] bw ( KiB/s): min= 7, max= 104, per=24.62%, avg=48.26, stdev=19.62, samples=209 iops : min= 1, max= 26, avg=11.58, stdev= 4.96, samples=209 lat (msec) : 20=0.08%, 50=0.23%, 100=0.08%, 250=1.99%, 500=37.50% lat (msec) : 750=25.23%, 1000=20.62%, 2000=14.26% cpu : usr=0.10%, sys=0.70%, ctx=5182, 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=188KiB/s (193kB/s), 46.7KiB/s-47.7KiB/s (47.8kB/s-48.9kB/s), io=19.6MiB (20.5MB), run=106044-106583msec WRITE: bw=196KiB/s (201kB/s), 48.7KiB/s-49.4KiB/s (49.9kB/s-50.6kB/s), io=20.4MiB (21.4MB), run=106044-106583msec 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=149769: Sat Sep 5 07:07:56 2026 read: IOPS=1, BW=64.7MiB/s (67.9MB/s)(40.0MiB/618msec) slat (nsec): min=34590k, max=34590k, avg=34590118.00, stdev= 0.00 clat (nsec): min=566528k, max=566528k, avg=566527556.00, stdev= 0.00 lat (nsec): min=601122k, max=601122k, avg=601121812.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 567], 5.00th=[ 567], 10.00th=[ 567], 20.00th=[ 567], | 30.00th=[ 567], 40.00th=[ 567], 50.00th=[ 567], 60.00th=[ 567], | 70.00th=[ 567], 80.00th=[ 567], 90.00th=[ 567], 95.00th=[ 567], | 99.00th=[ 567], 99.50th=[ 567], 99.90th=[ 567], 99.95th=[ 567], | 99.99th=[ 567] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.11%, ctx=5, 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=64.7MiB/s (67.9MB/s), 64.7MiB/s-64.7MiB/s (67.9MB/s-67.9MB/s), io=40.0MiB (41.9MB), run=618-618msec 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