== sanity test 398c: run fio to test AIO ================= 12:49:08 (1782233348) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.748139 s, 56.1 MB/s osc.lustre-OST0000-osc-ffff8a1333537000.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=145491: Tue Jun 23 12:52:20 2026 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(10.0MiB/181109msec); 0 zone resets slat (usec): min=42, max=19513, avg=437.48, stdev=1224.90 clat (msec): min=106, max=2207, avg=1130.95, stdev=282.05 lat (msec): min=107, max=2207, avg=1131.39, stdev=282.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 709], 10.00th=[ 802], 20.00th=[ 894], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1267], 80.00th=[ 1351], 90.00th=[ 1502], 95.00th=[ 1603], | 99.00th=[ 1770], 99.50th=[ 1821], 99.90th=[ 2198], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 182, per=25.15%, avg=56.84, stdev=25.45, samples=352 iops : min= 1, max= 45, avg=13.66, stdev= 6.40, samples=352 lat (msec) : 250=0.47%, 500=1.13%, 750=5.55%, 1000=25.35%, 2000=67.38% lat (msec) : >=2000=0.12% cpu : usr=0.05%, sys=0.34%, ctx=2295, 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=145492: Tue Jun 23 12:52:20 2026 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(10.0MiB/181229msec); 0 zone resets slat (usec): min=38, max=13337, avg=399.31, stdev=1024.72 clat (msec): min=354, max=2045, avg=1130.89, stdev=278.91 lat (msec): min=355, max=2046, avg=1131.30, stdev=278.89 clat percentiles (msec): | 1.00th=[ 435], 5.00th=[ 718], 10.00th=[ 810], 20.00th=[ 885], | 30.00th=[ 969], 40.00th=[ 1045], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1284], 80.00th=[ 1368], 90.00th=[ 1502], 95.00th=[ 1620], | 99.00th=[ 1754], 99.50th=[ 1854], 99.90th=[ 1938], 99.95th=[ 2022], | 99.99th=[ 2039] bw ( KiB/s): min= 7, max= 128, per=25.20%, avg=56.96, stdev=25.67, samples=352 iops : min= 1, max= 32, avg=13.69, stdev= 6.46, samples=352 lat (msec) : 500=1.91%, 750=4.53%, 1000=27.46%, 2000=66.02%, >=2000=0.08% cpu : usr=0.04%, sys=0.30%, ctx=1616, 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=145493: Tue Jun 23 12:52:20 2026 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(10.0MiB/181230msec); 0 zone resets slat (usec): min=36, max=27283, avg=389.21, stdev=1218.51 clat (msec): min=371, max=1982, avg=1131.10, stdev=275.61 lat (msec): min=371, max=1983, avg=1131.49, stdev=275.63 clat percentiles (msec): | 1.00th=[ 439], 5.00th=[ 684], 10.00th=[ 802], 20.00th=[ 885], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1133], 60.00th=[ 1200], | 70.00th=[ 1267], 80.00th=[ 1368], 90.00th=[ 1485], 95.00th=[ 1603], | 99.00th=[ 1804], 99.50th=[ 1871], 99.90th=[ 1972], 99.95th=[ 1989], | 99.99th=[ 1989] bw ( KiB/s): min= 7, max= 128, per=25.80%, avg=58.31, stdev=30.03, samples=344 iops : min= 1, max= 32, avg=14.04, stdev= 7.54, samples=344 lat (msec) : 500=1.33%, 750=6.05%, 1000=25.16%, 2000=67.46% cpu : usr=0.05%, sys=0.29%, ctx=1591, 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=145494: Tue Jun 23 12:52:20 2026 write: IOPS=14, BW=56.5KiB/s (57.9kB/s)(10.0MiB/181110msec); 0 zone resets slat (usec): min=39, max=20914, avg=420.22, stdev=1142.80 clat (msec): min=283, max=2208, avg=1130.49, stdev=279.84 lat (msec): min=283, max=2208, avg=1130.91, stdev=279.78 clat percentiles (msec): | 1.00th=[ 300], 5.00th=[ 726], 10.00th=[ 810], 20.00th=[ 894], | 30.00th=[ 978], 40.00th=[ 1053], 50.00th=[ 1116], 60.00th=[ 1200], | 70.00th=[ 1267], 80.00th=[ 1368], 90.00th=[ 1502], 95.00th=[ 1586], | 99.00th=[ 1770], 99.50th=[ 1871], 99.90th=[ 2005], 99.95th=[ 2056], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 171, per=25.30%, avg=57.18, stdev=27.33, samples=350 iops : min= 1, max= 42, avg=13.75, stdev= 6.84, samples=350 lat (msec) : 500=1.68%, 750=4.57%, 1000=26.91%, 2000=66.76%, >=2000=0.08% cpu : usr=0.05%, sys=0.31%, ctx=2072, 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=226KiB/s (231kB/s), 56.5KiB/s-56.5KiB/s (57.9kB/s-57.9kB/s), io=40.0MiB (41.9MB), run=181109-181230msec 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=145530: Tue Jun 23 12:54:42 2026 read: IOPS=9, BW=38.2KiB/s (39.1kB/s)(5048KiB/132220msec) slat (usec): min=54, max=151194, avg=18307.68, stdev=11011.19 clat (msec): min=61, max=1356, avg=530.10, stdev=157.01 lat (msec): min=80, max=1378, avg=548.42, stdev=159.18 clat percentiles (msec): | 1.00th=[ 255], 5.00th=[ 321], 10.00th=[ 355], 20.00th=[ 405], | 30.00th=[ 447], 40.00th=[ 477], 50.00th=[ 510], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 634], 90.00th=[ 726], 95.00th=[ 810], | 99.00th=[ 1020], 99.50th=[ 1183], 99.90th=[ 1334], 99.95th=[ 1351], | 99.99th=[ 1351] bw ( KiB/s): min= 7, max= 96, per=25.24%, avg=38.11, stdev=18.30, samples=257 iops : min= 1, max= 24, avg= 8.98, stdev= 4.60, samples=257 write: IOPS=9, BW=39.3KiB/s (40.2kB/s)(5192KiB/132220msec); 0 zone resets slat (usec): min=42, max=45427, avg=616.09, stdev=2031.99 clat (msec): min=163, max=2504, avg=1094.83, stdev=324.33 lat (msec): min=163, max=2505, avg=1095.45, stdev=324.32 clat percentiles (msec): | 1.00th=[ 422], 5.00th=[ 609], 10.00th=[ 726], 20.00th=[ 835], | 30.00th=[ 902], 40.00th=[ 978], 50.00th=[ 1062], 60.00th=[ 1167], | 70.00th=[ 1250], 80.00th=[ 1334], 90.00th=[ 1502], 95.00th=[ 1653], | 99.00th=[ 2022], 99.50th=[ 2123], 99.90th=[ 2433], 99.95th=[ 2500], | 99.99th=[ 2500] bw ( KiB/s): min= 7, max= 95, per=24.81%, avg=38.95, stdev=17.61, samples=259 iops : min= 1, max= 23, avg= 9.19, stdev= 4.42, samples=259 lat (msec) : 100=0.04%, 250=0.66%, 500=23.36%, 750=27.23%, 1000=18.91% lat (msec) : 2000=29.22%, >=2000=0.59% cpu : usr=0.10%, sys=0.76%, ctx=4649, 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=145531: Tue Jun 23 12:54:42 2026 read: IOPS=9, BW=37.6KiB/s (38.5kB/s)(4976KiB/132284msec) slat (msec): min=3, max=151, avg=18.09, stdev=10.69 clat (msec): min=29, max=1314, avg=518.59, stdev=141.79 lat (msec): min=50, max=1341, avg=536.69, stdev=143.58 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 330], 10.00th=[ 368], 20.00th=[ 409], | 30.00th=[ 447], 40.00th=[ 472], 50.00th=[ 502], 60.00th=[ 531], | 70.00th=[ 575], 80.00th=[ 625], 90.00th=[ 693], 95.00th=[ 785], | 99.00th=[ 936], 99.50th=[ 1003], 99.90th=[ 1200], 99.95th=[ 1318], | 99.99th=[ 1318] bw ( KiB/s): min= 7, max= 96, per=24.96%, avg=37.68, stdev=18.66, samples=257 iops : min= 1, max= 24, avg= 8.88, stdev= 4.68, samples=257 write: IOPS=9, BW=39.8KiB/s (40.7kB/s)(5264KiB/132284msec); 0 zone resets slat (usec): min=53, max=34230, avg=512.40, stdev=1475.08 clat (msec): min=227, max=2600, avg=1097.76, stdev=335.78 lat (msec): min=232, max=2600, avg=1098.28, stdev=335.77 clat percentiles (msec): | 1.00th=[ 380], 5.00th=[ 625], 10.00th=[ 709], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1036], 60.00th=[ 1150], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1653], | 99.00th=[ 2005], 99.50th=[ 2400], 99.90th=[ 2567], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 104, per=25.26%, avg=39.66, stdev=17.92, samples=258 iops : min= 1, max= 26, avg= 9.37, stdev= 4.51, samples=258 lat (msec) : 50=0.08%, 100=0.20%, 250=0.51%, 500=24.06%, 750=27.03% lat (msec) : 1000=19.53%, 2000=28.01%, >=2000=0.59% cpu : usr=0.08%, sys=0.64%, ctx=4240, 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=145532: Tue Jun 23 12:54:42 2026 read: IOPS=9, BW=37.6KiB/s (38.5kB/s)(4984KiB/132407msec) slat (msec): min=2, max=179, avg=18.58, stdev=11.06 clat (msec): min=4, max=1174, avg=521.76, stdev=143.29 lat (msec): min=24, max=1200, avg=540.35, stdev=145.27 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 317], 10.00th=[ 363], 20.00th=[ 418], | 30.00th=[ 447], 40.00th=[ 477], 50.00th=[ 510], 60.00th=[ 542], | 70.00th=[ 584], 80.00th=[ 634], 90.00th=[ 709], 95.00th=[ 776], | 99.00th=[ 927], 99.50th=[ 936], 99.90th=[ 995], 99.95th=[ 1183], | 99.99th=[ 1183] bw ( KiB/s): min= 7, max= 103, per=25.15%, avg=37.98, stdev=18.87, samples=256 iops : min= 1, max= 25, avg= 8.95, stdev= 4.76, samples=256 write: IOPS=9, BW=39.7KiB/s (40.6kB/s)(5256KiB/132407msec); 0 zone resets slat (usec): min=52, max=24454, avg=544.63, stdev=1441.76 clat (msec): min=184, max=2596, avg=1096.29, stdev=337.18 lat (msec): min=185, max=2596, avg=1096.84, stdev=337.11 clat percentiles (msec): | 1.00th=[ 405], 5.00th=[ 617], 10.00th=[ 701], 20.00th=[ 827], | 30.00th=[ 911], 40.00th=[ 978], 50.00th=[ 1053], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1368], 90.00th=[ 1536], 95.00th=[ 1670], | 99.00th=[ 2123], 99.50th=[ 2366], 99.90th=[ 2601], 99.95th=[ 2601], | 99.99th=[ 2601] bw ( KiB/s): min= 7, max= 103, per=24.86%, avg=39.02, stdev=18.48, samples=260 iops : min= 1, max= 25, avg= 9.21, stdev= 4.63, samples=260 lat (msec) : 10=0.04%, 20=0.04%, 50=0.08%, 100=0.20%, 250=0.62% lat (msec) : 500=22.70%, 750=28.01%, 1000=19.26%, 2000=28.40%, >=2000=0.66% cpu : usr=0.07%, sys=0.69%, ctx=4369, 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=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=145533: Tue Jun 23 12:54:42 2026 read: IOPS=9, BW=38.3KiB/s (39.2kB/s)(5060KiB/132152msec) slat (usec): min=3603, max=71054, avg=18064.85, stdev=10016.42 clat (msec): min=28, max=1282, avg=522.07, stdev=149.97 lat (msec): min=46, max=1292, avg=540.14, stdev=151.05 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 313], 10.00th=[ 359], 20.00th=[ 409], | 30.00th=[ 447], 40.00th=[ 481], 50.00th=[ 514], 60.00th=[ 550], | 70.00th=[ 584], 80.00th=[ 634], 90.00th=[ 701], 95.00th=[ 760], | 99.00th=[ 995], 99.50th=[ 1133], 99.90th=[ 1267], 99.95th=[ 1284], | 99.99th=[ 1284] bw ( KiB/s): min= 7, max= 112, per=25.74%, avg=38.87, stdev=17.71, samples=253 iops : min= 1, max= 28, avg= 9.17, stdev= 4.45, samples=253 write: IOPS=9, BW=39.2KiB/s (40.1kB/s)(5180KiB/132152msec); 0 zone resets slat (usec): min=57, max=17081, avg=491.59, stdev=1256.58 clat (msec): min=157, max=2582, avg=1101.30, stdev=339.87 lat (msec): min=157, max=2585, avg=1101.79, stdev=339.87 clat percentiles (msec): | 1.00th=[ 430], 5.00th=[ 634], 10.00th=[ 718], 20.00th=[ 827], | 30.00th=[ 902], 40.00th=[ 969], 50.00th=[ 1045], 60.00th=[ 1133], | 70.00th=[ 1267], 80.00th=[ 1385], 90.00th=[ 1519], 95.00th=[ 1703], | 99.00th=[ 2123], 99.50th=[ 2467], 99.90th=[ 2567], 99.95th=[ 2567], | 99.99th=[ 2567] bw ( KiB/s): min= 7, max= 88, per=24.78%, avg=38.91, stdev=18.22, samples=259 iops : min= 1, max= 22, avg= 9.18, stdev= 4.60, samples=259 lat (msec) : 50=0.04%, 100=0.35%, 250=0.74%, 500=22.11%, 750=29.06% lat (msec) : 1000=19.10%, 2000=27.89%, >=2000=0.70% cpu : usr=0.11%, sys=0.74%, ctx=4583, 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=152KiB/s (155kB/s), 37.6KiB/s-38.3KiB/s (38.5kB/s-39.2kB/s), io=19.6MiB (20.5MB), run=132152-132407msec WRITE: bw=158KiB/s (162kB/s), 39.2KiB/s-39.8KiB/s (40.1kB/s-40.7kB/s), io=20.4MiB (21.4MB), run=132152-132407msec 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=145558: Tue Jun 23 12:54:54 2026 read: IOPS=1, BW=66.3MiB/s (69.6MB/s)(40.0MiB/603msec) slat (nsec): min=51239k, max=51239k, avg=51239464.00, stdev= 0.00 clat (nsec): min=514711k, max=514711k, avg=514710957.00, stdev= 0.00 lat (nsec): min=565979k, max=565979k, avg=565979086.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.65%, ctx=6, 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=66.3MiB/s (69.6MB/s), 66.3MiB/s-66.3MiB/s (69.6MB/s-69.6MB/s), io=40.0MiB (41.9MB), run=603-603msec 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