== sanity test 398c: run fio to test AIO ================= 23:57:43 (1786420663) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.791406 s, 53.0 MB/s osc.lustre-OST0000-osc-ffff91548f9cc800.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=144273: Tue Aug 11 00:00:50 2026 write: IOPS=14, BW=57.3KiB/s (58.7kB/s)(10.0MiB/178729msec); 0 zone resets slat (usec): min=49, max=19398, avg=441.36, stdev=999.40 clat (msec): min=306, max=2123, avg=1116.09, stdev=280.60 lat (msec): min=306, max=2123, avg=1116.53, stdev=280.62 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 684], 10.00th=[ 810], 20.00th=[ 902], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1183], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1586], | 99.00th=[ 1821], 99.50th=[ 1871], 99.90th=[ 1972], 99.95th=[ 2056], | 99.99th=[ 2123] bw ( KiB/s): min= 7, max= 252, per=25.46%, avg=58.31, stdev=29.24, samples=346 iops : min= 1, max= 63, avg=14.25, stdev= 7.34, samples=346 lat (msec) : 500=3.36%, 750=3.40%, 1000=26.33%, 2000=66.84%, >=2000=0.08% cpu : usr=0.05%, sys=0.31%, ctx=2143, 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=144274: Tue Aug 11 00:00:50 2026 write: IOPS=14, BW=57.3KiB/s (58.7kB/s)(10.0MiB/178727msec); 0 zone resets slat (usec): min=49, max=16270, avg=453.57, stdev=946.12 clat (msec): min=64, max=2058, avg=1114.87, stdev=283.65 lat (msec): min=64, max=2058, avg=1115.33, stdev=283.66 clat percentiles (msec): | 1.00th=[ 313], 5.00th=[ 701], 10.00th=[ 802], 20.00th=[ 894], | 30.00th=[ 978], 40.00th=[ 1045], 50.00th=[ 1099], 60.00th=[ 1167], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1485], 95.00th=[ 1603], | 99.00th=[ 1787], 99.50th=[ 1838], 99.90th=[ 2056], 99.95th=[ 2056], | 99.99th=[ 2056] bw ( KiB/s): min= 7, max= 205, per=25.40%, avg=58.17, stdev=31.02, samples=347 iops : min= 1, max= 51, avg=14.22, stdev= 7.76, samples=347 lat (msec) : 100=0.04%, 250=0.12%, 500=3.48%, 750=2.54%, 1000=26.80% lat (msec) : 2000=66.91%, >=2000=0.12% cpu : usr=0.04%, sys=0.32%, ctx=2196, 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=144275: Tue Aug 11 00:00:50 2026 write: IOPS=14, BW=57.3KiB/s (58.6kB/s)(10.0MiB/178788msec); 0 zone resets slat (usec): min=49, max=11796, avg=468.90, stdev=972.24 clat (msec): min=320, max=1975, avg=1115.20, stdev=280.74 lat (msec): min=321, max=1975, avg=1115.67, stdev=280.76 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 701], 10.00th=[ 802], 20.00th=[ 911], | 30.00th=[ 978], 40.00th=[ 1036], 50.00th=[ 1099], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1569], | 99.00th=[ 1854], 99.50th=[ 1905], 99.90th=[ 1955], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 252, per=25.05%, avg=57.36, stdev=30.00, samples=352 iops : min= 1, max= 63, avg=14.01, stdev= 7.53, samples=352 lat (msec) : 500=3.40%, 750=3.09%, 1000=28.01%, 2000=65.51% cpu : usr=0.05%, sys=0.31%, ctx=2331, 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=144276: Tue Aug 11 00:00:50 2026 write: IOPS=14, BW=57.3KiB/s (58.6kB/s)(10.0MiB/178848msec); 0 zone resets slat (usec): min=48, max=13043, avg=441.68, stdev=884.36 clat (msec): min=315, max=1958, avg=1115.78, stdev=278.28 lat (msec): min=315, max=1958, avg=1116.22, stdev=278.28 clat percentiles (msec): | 1.00th=[ 359], 5.00th=[ 718], 10.00th=[ 802], 20.00th=[ 894], | 30.00th=[ 986], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1183], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1469], 95.00th=[ 1603], | 99.00th=[ 1804], 99.50th=[ 1888], 99.90th=[ 1905], 99.95th=[ 1921], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 252, per=25.05%, avg=57.36, stdev=28.50, samples=352 iops : min= 1, max= 63, avg=14.01, stdev= 7.15, samples=352 lat (msec) : 500=3.12%, 750=3.12%, 1000=26.37%, 2000=67.38% cpu : usr=0.05%, sys=0.34%, ctx=2289, 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=229KiB/s (235kB/s), 57.3KiB/s-57.3KiB/s (58.6kB/s-58.7kB/s), io=40.0MiB (41.9MB), run=178727-178848msec 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=144314: Tue Aug 11 00:03:16 2026 read: IOPS=9, BW=36.3KiB/s (37.2kB/s)(5048KiB/139097msec) slat (usec): min=4344, max=62679, avg=19443.87, stdev=9411.62 clat (msec): min=39, max=1039, avg=548.50, stdev=124.10 lat (msec): min=52, max=1079, avg=567.96, stdev=125.31 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 368], 10.00th=[ 409], 20.00th=[ 451], | 30.00th=[ 481], 40.00th=[ 510], 50.00th=[ 542], 60.00th=[ 567], | 70.00th=[ 609], 80.00th=[ 642], 90.00th=[ 718], 95.00th=[ 768], | 99.00th=[ 869], 99.50th=[ 936], 99.90th=[ 1020], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min= 7, max= 95, per=25.25%, avg=36.36, stdev=17.33, samples=271 iops : min= 1, max= 23, avg= 8.62, stdev= 4.36, samples=271 write: IOPS=9, BW=37.3KiB/s (38.2kB/s)(5192KiB/139097msec); 0 zone resets slat (usec): min=54, max=13446, avg=581.77, stdev=1035.93 clat (msec): min=464, max=1964, avg=1157.44, stdev=260.66 lat (msec): min=464, max=1964, avg=1158.04, stdev=260.65 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 735], 10.00th=[ 835], 20.00th=[ 936], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1586], | 99.00th=[ 1770], 99.50th=[ 1838], 99.90th=[ 1972], 99.95th=[ 1972], | 99.99th=[ 1972] bw ( KiB/s): min= 7, max= 87, per=24.67%, avg=37.01, stdev=16.97, samples=274 iops : min= 1, max= 21, avg= 8.78, stdev= 4.26, samples=274 lat (msec) : 50=0.04%, 100=0.20%, 250=0.08%, 500=18.48%, 750=30.12% lat (msec) : 1000=15.04%, 2000=36.05% cpu : usr=0.10%, sys=0.76%, ctx=5462, 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=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=144315: Tue Aug 11 00:03:16 2026 read: IOPS=8, BW=35.7KiB/s (36.6kB/s)(4976KiB/139226msec) slat (usec): min=3724, max=74942, avg=18974.36, stdev=9299.28 clat (msec): min=16, max=1011, avg=546.60, stdev=126.39 lat (msec): min=24, max=1041, avg=565.58, stdev=128.02 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 368], 10.00th=[ 401], 20.00th=[ 447], | 30.00th=[ 485], 40.00th=[ 514], 50.00th=[ 542], 60.00th=[ 567], | 70.00th=[ 600], 80.00th=[ 642], 90.00th=[ 709], 95.00th=[ 768], | 99.00th=[ 885], 99.50th=[ 911], 99.90th=[ 995], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 7, max= 88, per=24.63%, avg=35.47, stdev=17.00, samples=272 iops : min= 1, max= 22, avg= 8.40, stdev= 4.23, samples=272 write: IOPS=9, BW=37.8KiB/s (38.7kB/s)(5264KiB/139226msec); 0 zone resets slat (usec): min=55, max=14908, avg=567.41, stdev=1129.59 clat (msec): min=234, max=1948, avg=1153.62, stdev=271.61 lat (msec): min=234, max=1948, avg=1154.19, stdev=271.60 clat percentiles (msec): | 1.00th=[ 558], 5.00th=[ 693], 10.00th=[ 810], 20.00th=[ 919], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1284], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1569], | 99.00th=[ 1838], 99.50th=[ 1921], 99.90th=[ 1938], 99.95th=[ 1955], | 99.99th=[ 1955] bw ( KiB/s): min= 7, max= 88, per=25.12%, avg=37.68, stdev=16.81, samples=272 iops : min= 1, max= 22, avg= 8.96, stdev= 4.25, samples=272 lat (msec) : 20=0.04%, 50=0.08%, 100=0.20%, 250=0.20%, 500=17.54% lat (msec) : 750=30.94%, 1000=14.53%, 2000=36.48% cpu : usr=0.11%, sys=0.72%, ctx=4863, 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=144316: Tue Aug 11 00:03:16 2026 read: IOPS=8, BW=35.8KiB/s (36.7kB/s)(4984KiB/139165msec) slat (usec): min=3879, max=76114, avg=19228.64, stdev=9173.63 clat (msec): min=26, max=1048, avg=548.50, stdev=124.53 lat (msec): min=57, max=1079, avg=567.75, stdev=125.92 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 372], 10.00th=[ 405], 20.00th=[ 456], | 30.00th=[ 485], 40.00th=[ 514], 50.00th=[ 542], 60.00th=[ 575], | 70.00th=[ 600], 80.00th=[ 634], 90.00th=[ 718], 95.00th=[ 785], | 99.00th=[ 852], 99.50th=[ 902], 99.90th=[ 1036], 99.95th=[ 1045], | 99.99th=[ 1045] bw ( KiB/s): min= 7, max= 87, per=25.16%, avg=36.23, stdev=18.47, samples=269 iops : min= 1, max= 21, avg= 8.59, stdev= 4.67, samples=269 write: IOPS=9, BW=37.8KiB/s (38.7kB/s)(5256KiB/139165msec); 0 zone resets slat (usec): min=54, max=14885, avg=614.35, stdev=1086.56 clat (msec): min=316, max=2001, avg=1151.37, stdev=264.92 lat (msec): min=316, max=2001, avg=1151.99, stdev=264.94 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 709], 10.00th=[ 827], 20.00th=[ 936], | 30.00th=[ 1011], 40.00th=[ 1083], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1368], 90.00th=[ 1502], 95.00th=[ 1603], | 99.00th=[ 1770], 99.50th=[ 1804], 99.90th=[ 1921], 99.95th=[ 2005], | 99.99th=[ 2005] bw ( KiB/s): min= 7, max= 103, per=24.95%, avg=37.43, stdev=17.23, samples=273 iops : min= 1, max= 25, avg= 8.89, stdev= 4.34, samples=273 lat (msec) : 50=0.04%, 100=0.20%, 250=0.20%, 500=17.62%, 750=30.12% lat (msec) : 1000=15.12%, 2000=36.68%, >=2000=0.04% cpu : usr=0.10%, sys=0.80%, ctx=5231, 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=144317: Tue Aug 11 00:03:16 2026 read: IOPS=9, BW=36.4KiB/s (37.3kB/s)(5060KiB/138844msec) slat (usec): min=89, max=57526, avg=19276.87, stdev=9069.52 clat (msec): min=23, max=1420, avg=547.76, stdev=133.74 lat (msec): min=33, max=1437, avg=567.05, stdev=135.02 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 368], 10.00th=[ 401], 20.00th=[ 447], | 30.00th=[ 481], 40.00th=[ 506], 50.00th=[ 542], 60.00th=[ 567], | 70.00th=[ 600], 80.00th=[ 642], 90.00th=[ 718], 95.00th=[ 776], | 99.00th=[ 885], 99.50th=[ 953], 99.90th=[ 1401], 99.95th=[ 1418], | 99.99th=[ 1418] bw ( KiB/s): min= 7, max= 88, per=25.86%, avg=37.24, stdev=17.80, samples=266 iops : min= 1, max= 22, avg= 8.83, stdev= 4.48, samples=266 write: IOPS=9, BW=37.3KiB/s (38.2kB/s)(5180KiB/138844msec); 0 zone resets slat (usec): min=54, max=12978, avg=568.85, stdev=1034.66 clat (msec): min=222, max=2432, avg=1159.68, stdev=282.67 lat (msec): min=222, max=2432, avg=1160.25, stdev=282.68 clat percentiles (msec): | 1.00th=[ 464], 5.00th=[ 718], 10.00th=[ 827], 20.00th=[ 919], | 30.00th=[ 1003], 40.00th=[ 1083], 50.00th=[ 1150], 60.00th=[ 1217], | 70.00th=[ 1301], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1603], | 99.00th=[ 1871], 99.50th=[ 2232], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 7, max= 87, per=24.64%, avg=36.96, stdev=16.68, samples=273 iops : min= 1, max= 21, avg= 8.77, stdev= 4.18, samples=273 lat (msec) : 50=0.20%, 100=0.12%, 250=0.35%, 500=18.75%, 750=29.53% lat (msec) : 1000=15.43%, 2000=35.35%, >=2000=0.27% cpu : usr=0.11%, sys=0.81%, ctx=5346, 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=144KiB/s (148kB/s), 35.7KiB/s-36.4KiB/s (36.6kB/s-37.3kB/s), io=19.6MiB (20.5MB), run=138844-139226msec WRITE: bw=150KiB/s (154kB/s), 37.3KiB/s-37.8KiB/s (38.2kB/s-38.7kB/s), io=20.4MiB (21.4MB), run=138844-139226msec 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=144353: Tue Aug 11 00:03:25 2026 read: IOPS=1, BW=48.6MiB/s (50.0MB/s)(40.0MiB/823msec) slat (nsec): min=33835k, max=33835k, avg=33834971.00, stdev= 0.00 clat (nsec): min=775587k, max=775587k, avg=775586888.00, stdev= 0.00 lat (nsec): min=809427k, max=809427k, avg=809426592.00, 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=0.12%, sys=1.58%, ctx=8, 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=48.6MiB/s (50.0MB/s), 48.6MiB/s-48.6MiB/s (50.0MB/s-50.0MB/s), io=40.0MiB (41.9MB), run=823-823msec 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