== sanity test 398c: run fio to test AIO ================= 22:48:05 (1772423285) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.13242 s, 317 MB/s osc.lustre-OST0000-osc-ffff9dec09bfe800.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=147805: Sun Mar 1 22:48:38 2026 write: IOPS=85, BW=340KiB/s (348kB/s)(10.0MiB/30093msec); 0 zone resets slat (usec): min=46, max=851, avg=226.42, stdev=94.90 clat (msec): min=61, max=308, avg=187.63, stdev=35.92 lat (msec): min=61, max=308, avg=187.86, stdev=35.93 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 264, max= 511, per=24.84%, avg=338.02, stdev=50.42, samples=59 iops : min= 66, max= 127, avg=84.49, stdev=12.56, samples=59 lat (msec) : 100=1.33%, 250=95.08%, 500=3.59% cpu : usr=0.13%, sys=1.60%, ctx=2653, 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=147806: Sun Mar 1 22:48:38 2026 write: IOPS=85, BW=340KiB/s (349kB/s)(10.0MiB/30083msec); 0 zone resets slat (usec): min=44, max=781, avg=219.18, stdev=92.57 clat (msec): min=64, max=309, avg=187.59, stdev=35.86 lat (msec): min=64, max=309, avg=187.81, stdev=35.87 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 130], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 245], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 309], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 256, max= 511, per=24.87%, avg=338.42, stdev=47.97, samples=59 iops : min= 64, max= 127, avg=84.59, stdev=11.95, samples=59 lat (msec) : 100=1.45%, 250=95.00%, 500=3.55% cpu : usr=0.13%, sys=1.56%, ctx=2652, 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=147807: Sun Mar 1 22:48:38 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30063msec); 0 zone resets slat (usec): min=40, max=950, avg=208.74, stdev=102.44 clat (msec): min=35, max=296, avg=187.57, stdev=37.06 lat (msec): min=35, max=296, avg=187.78, stdev=37.07 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 199], | 70.00th=[ 207], 80.00th=[ 218], 90.00th=[ 234], 95.00th=[ 247], | 99.00th=[ 271], 99.50th=[ 275], 99.90th=[ 288], 99.95th=[ 292], | 99.99th=[ 296] bw ( KiB/s): min= 256, max= 613, per=24.87%, avg=338.53, stdev=55.65, samples=59 iops : min= 64, max= 153, avg=84.63, stdev=13.89, samples=59 lat (msec) : 50=0.62%, 100=1.25%, 250=94.41%, 500=3.71% cpu : usr=0.11%, sys=1.49%, ctx=2410, 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=147808: Sun Mar 1 22:48:38 2026 write: IOPS=85, BW=341KiB/s (349kB/s)(10.0MiB/30042msec); 0 zone resets slat (usec): min=49, max=1046, avg=224.00, stdev=97.94 clat (msec): min=33, max=308, avg=187.35, stdev=37.18 lat (msec): min=33, max=308, avg=187.57, stdev=37.18 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 128], 10.00th=[ 142], 20.00th=[ 161], | 30.00th=[ 174], 40.00th=[ 180], 50.00th=[ 188], 60.00th=[ 197], | 70.00th=[ 205], 80.00th=[ 218], 90.00th=[ 232], 95.00th=[ 247], | 99.00th=[ 275], 99.50th=[ 284], 99.90th=[ 300], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 264, max= 568, per=24.92%, avg=339.12, stdev=54.28, samples=59 iops : min= 66, max= 142, avg=84.78, stdev=13.57, samples=59 lat (msec) : 50=0.47%, 100=1.37%, 250=94.30%, 500=3.87% cpu : usr=0.16%, sys=1.56%, ctx=2665, 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 Run status group 0 (all jobs): WRITE: bw=1361KiB/s (1394kB/s), 340KiB/s-341KiB/s (348kB/s-349kB/s), io=40.0MiB (41.9MB), run=30042-30093msec 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=147822: Sun Mar 1 22:49:02 2026 read: IOPS=62, BW=248KiB/s (254kB/s)(5048KiB/20345msec) slat (usec): min=1190, max=5434, avg=2549.41, stdev=749.31 clat (msec): min=4, max=188, avg=80.50, stdev=14.73 lat (msec): min=6, max=191, avg=83.05, stdev=14.73 clat percentiles (msec): | 1.00th=[ 33], 5.00th=[ 60], 10.00th=[ 66], 20.00th=[ 70], | 30.00th=[ 74], 40.00th=[ 79], 50.00th=[ 82], 60.00th=[ 85], | 70.00th=[ 88], 80.00th=[ 91], 90.00th=[ 96], 95.00th=[ 102], | 99.00th=[ 111], 99.50th=[ 117], 99.90th=[ 171], 99.95th=[ 188], | 99.99th=[ 188] bw ( KiB/s): min= 168, max= 336, per=25.25%, avg=248.42, stdev=41.94, samples=40 iops : min= 42, max= 84, avg=62.10, stdev=10.49, samples=40 write: IOPS=63, BW=255KiB/s (261kB/s)(5192KiB/20345msec); 0 zone resets slat (usec): min=65, max=666, avg=200.35, stdev=96.49 clat (msec): min=16, max=295, avg=169.36, stdev=36.22 lat (msec): min=17, max=295, avg=169.56, stdev=36.22 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 114], 10.00th=[ 126], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 192, max= 312, per=24.83%, avg=254.55, stdev=31.04, samples=40 iops : min= 48, max= 78, avg=63.62, stdev= 7.76, samples=40 lat (msec) : 10=0.12%, 20=0.31%, 50=0.66%, 100=46.56%, 250=51.29% lat (msec) : 500=1.05% cpu : usr=0.19%, sys=2.36%, ctx=4855, 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=147823: Sun Mar 1 22:49:02 2026 read: IOPS=61, BW=244KiB/s (250kB/s)(4976KiB/20380msec) slat (usec): min=1162, max=5739, avg=2542.50, stdev=751.75 clat (msec): min=3, max=146, avg=80.24, stdev=14.38 lat (msec): min=5, max=149, avg=82.78, stdev=14.40 clat percentiles (msec): | 1.00th=[ 41], 5.00th=[ 59], 10.00th=[ 64], 20.00th=[ 69], | 30.00th=[ 74], 40.00th=[ 78], 50.00th=[ 82], 60.00th=[ 85], | 70.00th=[ 88], 80.00th=[ 92], 90.00th=[ 97], 95.00th=[ 102], | 99.00th=[ 109], 99.50th=[ 111], 99.90th=[ 146], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 152, max= 336, per=24.74%, avg=243.48, stdev=44.81, samples=40 iops : min= 38, max= 84, avg=60.85, stdev=11.20, samples=40 write: IOPS=64, BW=258KiB/s (264kB/s)(5264KiB/20380msec); 0 zone resets slat (usec): min=63, max=705, avg=198.80, stdev=91.12 clat (msec): min=27, max=300, avg=168.86, stdev=38.24 lat (msec): min=27, max=300, avg=169.06, stdev=38.25 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 112], 10.00th=[ 124], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 275], 99.50th=[ 279], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 176, max= 368, per=25.13%, avg=257.55, stdev=37.44, samples=40 iops : min= 44, max= 92, avg=64.38, stdev= 9.36, samples=40 lat (msec) : 4=0.08%, 10=0.04%, 20=0.20%, 50=0.62%, 100=45.98% lat (msec) : 250=51.52%, 500=1.56% cpu : usr=0.23%, sys=2.35%, ctx=4821, 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=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=147824: Sun Mar 1 22:49:02 2026 read: IOPS=61, BW=245KiB/s (251kB/s)(4984KiB/20345msec) slat (usec): min=61, max=6540, avg=2556.05, stdev=802.90 clat (msec): min=2, max=174, avg=80.61, stdev=13.69 lat (msec): min=5, max=176, avg=83.16, stdev=13.73 clat percentiles (msec): | 1.00th=[ 45], 5.00th=[ 61], 10.00th=[ 66], 20.00th=[ 71], | 30.00th=[ 75], 40.00th=[ 79], 50.00th=[ 82], 60.00th=[ 84], | 70.00th=[ 88], 80.00th=[ 91], 90.00th=[ 96], 95.00th=[ 101], | 99.00th=[ 109], 99.50th=[ 113], 99.90th=[ 171], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 144, max= 368, per=25.04%, avg=246.35, stdev=57.02, samples=40 iops : min= 36, max= 92, avg=61.58, stdev=14.25, samples=40 write: IOPS=64, BW=258KiB/s (265kB/s)(5256KiB/20345msec); 0 zone resets slat (usec): min=50, max=2221, avg=197.47, stdev=111.41 clat (msec): min=33, max=306, avg=168.48, stdev=37.78 lat (msec): min=34, max=307, avg=168.68, stdev=37.78 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 199], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 271], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 309], | 99.99th=[ 309] bw ( KiB/s): min= 200, max= 344, per=25.06%, avg=256.87, stdev=31.72, samples=40 iops : min= 50, max= 86, avg=64.20, stdev= 7.92, samples=40 lat (msec) : 4=0.04%, 10=0.08%, 20=0.23%, 50=0.82%, 100=46.95% lat (msec) : 250=50.62%, 500=1.25% cpu : usr=0.19%, sys=2.31%, ctx=4707, 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=147825: Sun Mar 1 22:49:02 2026 read: IOPS=62, BW=248KiB/s (254kB/s)(5060KiB/20366msec) slat (usec): min=1091, max=5447, avg=2534.57, stdev=764.99 clat (msec): min=5, max=145, avg=81.16, stdev=12.68 lat (msec): min=7, max=147, avg=83.69, stdev=12.72 clat percentiles (msec): | 1.00th=[ 48], 5.00th=[ 63], 10.00th=[ 67], 20.00th=[ 71], | 30.00th=[ 75], 40.00th=[ 79], 50.00th=[ 83], 60.00th=[ 85], | 70.00th=[ 88], 80.00th=[ 91], 90.00th=[ 95], 95.00th=[ 101], | 99.00th=[ 109], 99.50th=[ 114], 99.90th=[ 144], 99.95th=[ 146], | 99.99th=[ 146] bw ( KiB/s): min= 144, max= 368, per=25.38%, avg=249.75, stdev=49.12, samples=40 iops : min= 36, max= 92, avg=62.42, stdev=12.28, samples=40 write: IOPS=63, BW=254KiB/s (260kB/s)(5180KiB/20366msec); 0 zone resets slat (usec): min=52, max=704, avg=198.53, stdev=97.31 clat (msec): min=34, max=301, avg=169.22, stdev=37.28 lat (msec): min=34, max=302, avg=169.42, stdev=37.28 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 110], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 215], 95.00th=[ 230], | 99.00th=[ 271], 99.50th=[ 284], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 192, max= 360, per=24.68%, avg=252.95, stdev=36.34, samples=40 iops : min= 48, max= 90, avg=63.22, stdev= 9.08, samples=40 lat (msec) : 10=0.08%, 20=0.04%, 50=0.59%, 100=47.66%, 250=50.39% lat (msec) : 500=1.25% cpu : usr=0.18%, sys=2.33%, ctx=4820, 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=985KiB/s (1008kB/s), 244KiB/s-248KiB/s (250kB/s-254kB/s), io=19.6MiB (20.5MB), run=20345-20380msec WRITE: bw=1025KiB/s (1050kB/s), 254KiB/s-258KiB/s (260kB/s-265kB/s), io=20.4MiB (21.4MB), run=20345-20380msec 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=147831: Sun Mar 1 22:49:05 2026 read: IOPS=8, BW=354MiB/s (371MB/s)(40.0MiB/113msec) slat (nsec): min=9008.2k, max=9008.2k, avg=9008167.00, stdev= 0.00 clat (nsec): min=99196k, max=99196k, avg=99195708.00, stdev= 0.00 lat (nsec): min=108207k, max=108207k, avg=108206958.00, stdev= 0.00 clat percentiles (usec): | 1.00th=[99091], 5.00th=[99091], 10.00th=[99091], 20.00th=[99091], | 30.00th=[99091], 40.00th=[99091], 50.00th=[99091], 60.00th=[99091], | 70.00th=[99091], 80.00th=[99091], 90.00th=[99091], 95.00th=[99091], | 99.00th=[99091], 99.50th=[99091], 99.90th=[99091], 99.95th=[99091], | 99.99th=[99091] lat (msec) : 100=100.00% cpu : usr=0.00%, sys=7.14%, ctx=43, 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=354MiB/s (371MB/s), 354MiB/s-354MiB/s (371MB/s-371MB/s), io=40.0MiB (41.9MB), run=113-113msec 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