== sanity test 398c: run fio to test AIO ================= 21:20:49 (1789608049) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.675664 s, 62.1 MB/s osc.lustre-OST0000-osc-ffff9e9ade8b9000.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=179834: Wed Sep 16 21:21:30 2026 write: IOPS=89, BW=357KiB/s (366kB/s)(10.0MiB/28653msec); 0 zone resets slat (usec): min=22, max=18647, avg=170.53, stdev=696.10 clat (msec): min=29, max=386, avg=178.31, stdev=48.13 lat (msec): min=29, max=387, avg=178.48, stdev=48.15 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 110], 10.00th=[ 124], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 163], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 266], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 372], 99.95th=[ 380], | 99.99th=[ 388] bw ( KiB/s): min= 174, max= 510, per=24.92%, avg=355.93, stdev=78.21, samples=56 iops : min= 43, max= 127, avg=88.62, stdev=19.57, samples=56 lat (msec) : 50=0.08%, 100=2.19%, 250=90.90%, 500=6.84% cpu : usr=0.15%, sys=0.81%, ctx=1698, 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=179835: Wed Sep 16 21:21:30 2026 write: IOPS=90, BW=360KiB/s (369kB/s)(10.0MiB/28443msec); 0 zone resets slat (usec): min=22, max=25505, avg=206.18, stdev=895.23 clat (msec): min=44, max=421, avg=177.35, stdev=50.17 lat (msec): min=46, max=421, avg=177.56, stdev=50.25 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 107], 10.00th=[ 124], 20.00th=[ 142], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 171], 60.00th=[ 184], | 70.00th=[ 197], 80.00th=[ 215], 90.00th=[ 234], 95.00th=[ 266], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 384], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 182, max= 671, per=25.17%, avg=359.39, stdev=82.39, samples=56 iops : min= 45, max= 167, avg=89.48, stdev=20.55, samples=56 lat (msec) : 50=0.62%, 100=1.41%, 250=91.41%, 500=6.56% cpu : usr=0.14%, sys=1.04%, ctx=2598, 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=179836: Wed Sep 16 21:21:30 2026 write: IOPS=89, BW=357KiB/s (366kB/s)(10.0MiB/28653msec); 0 zone resets slat (usec): min=25, max=12421, avg=198.06, stdev=648.90 clat (msec): min=14, max=367, avg=177.96, stdev=48.94 lat (msec): min=14, max=367, avg=178.16, stdev=48.89 clat percentiles (msec): | 1.00th=[ 87], 5.00th=[ 108], 10.00th=[ 128], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 194], 80.00th=[ 211], 90.00th=[ 239], 95.00th=[ 271], | 99.00th=[ 351], 99.50th=[ 359], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 136, max= 496, per=24.97%, avg=356.55, stdev=73.04, samples=56 iops : min= 34, max= 124, avg=88.79, stdev=18.22, samples=56 lat (msec) : 20=0.04%, 50=0.23%, 100=2.27%, 250=90.78%, 500=6.68% cpu : usr=0.20%, sys=1.07%, ctx=2910, 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=179837: Wed Sep 16 21:21:30 2026 write: IOPS=89, BW=357KiB/s (366kB/s)(10.0MiB/28680msec); 0 zone resets slat (usec): min=22, max=13867, avg=169.67, stdev=699.75 clat (msec): min=39, max=377, avg=178.04, stdev=47.94 lat (msec): min=39, max=384, avg=178.21, stdev=47.93 clat percentiles (msec): | 1.00th=[ 95], 5.00th=[ 111], 10.00th=[ 126], 20.00th=[ 142], | 30.00th=[ 153], 40.00th=[ 161], 50.00th=[ 171], 60.00th=[ 182], | 70.00th=[ 197], 80.00th=[ 211], 90.00th=[ 236], 95.00th=[ 268], | 99.00th=[ 342], 99.50th=[ 355], 99.90th=[ 380], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 168, max= 512, per=24.91%, avg=355.68, stdev=76.83, samples=56 iops : min= 42, max= 128, avg=88.55, stdev=19.23, samples=56 lat (msec) : 50=0.04%, 100=2.07%, 250=91.80%, 500=6.09% cpu : usr=0.19%, sys=0.81%, ctx=1409, 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=1428KiB/s (1462kB/s), 357KiB/s-360KiB/s (366kB/s-369kB/s), io=40.0MiB (41.9MB), run=28443-28680msec 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=179851: Wed Sep 16 21:22:12 2026 read: IOPS=41, BW=165KiB/s (169kB/s)(5048KiB/30624msec) slat (usec): min=22, max=47992, avg=13333.68, stdev=7262.20 clat (msec): min=14, max=415, avg=181.43, stdev=50.64 lat (msec): min=22, max=446, avg=194.77, stdev=52.92 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 140], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 247], 95.00th=[ 268], | 99.00th=[ 334], 99.50th=[ 359], 99.90th=[ 401], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 87, max= 271, per=25.46%, avg=164.75, stdev=40.36, samples=60 iops : min= 21, max= 67, avg=40.68, stdev=10.15, samples=60 write: IOPS=42, BW=170KiB/s (174kB/s)(5192KiB/30624msec); 0 zone resets slat (usec): min=24, max=18228, avg=238.84, stdev=1007.41 clat (msec): min=70, max=398, avg=187.56, stdev=50.15 lat (msec): min=70, max=398, avg=187.80, stdev=50.18 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 112], 10.00th=[ 128], 20.00th=[ 148], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 209], 80.00th=[ 226], 90.00th=[ 257], 95.00th=[ 279], | 99.00th=[ 326], 99.50th=[ 342], 99.90th=[ 384], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 71, max= 311, per=25.25%, avg=169.95, stdev=45.94, samples=60 iops : min= 17, max= 77, avg=42.02, stdev=11.50, samples=60 lat (msec) : 20=0.04%, 50=0.16%, 100=2.27%, 250=87.34%, 500=10.20% cpu : usr=0.27%, sys=2.01%, ctx=4272, 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=179852: Wed Sep 16 21:22:12 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4976KiB/30858msec) slat (usec): min=2926, max=89204, avg=13843.86, stdev=8035.52 clat (msec): min=24, max=357, avg=183.03, stdev=50.20 lat (msec): min=36, max=376, avg=196.88, stdev=51.92 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 111], 10.00th=[ 125], 20.00th=[ 142], | 30.00th=[ 157], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 188], | 70.00th=[ 203], 80.00th=[ 224], 90.00th=[ 251], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 355], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 79, max= 281, per=24.83%, avg=160.64, stdev=43.04, samples=61 iops : min= 19, max= 70, avg=39.66, stdev=10.81, samples=61 write: IOPS=42, BW=171KiB/s (175kB/s)(5264KiB/30858msec); 0 zone resets slat (usec): min=25, max=13236, avg=207.45, stdev=736.77 clat (msec): min=53, max=357, avg=186.54, stdev=48.09 lat (msec): min=53, max=357, avg=186.75, stdev=48.11 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 117], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 169], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 228], 90.00th=[ 249], 95.00th=[ 275], | 99.00th=[ 326], 99.50th=[ 338], 99.90th=[ 351], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 102, max= 269, per=25.31%, avg=170.31, stdev=43.84, samples=61 iops : min= 25, max= 67, avg=42.10, stdev=11.01, samples=61 lat (msec) : 50=0.12%, 100=1.84%, 250=88.16%, 500=9.88% cpu : usr=0.23%, sys=1.85%, ctx=4061, 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=179853: Wed Sep 16 21:22:12 2026 read: IOPS=40, BW=161KiB/s (165kB/s)(4984KiB/30884msec) slat (usec): min=2642, max=67875, avg=13678.50, stdev=7720.84 clat (msec): min=62, max=332, avg=181.00, stdev=45.07 lat (msec): min=76, max=357, avg=194.69, stdev=47.39 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 111], 10.00th=[ 127], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 326], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 72, max= 272, per=24.93%, avg=161.28, stdev=43.49, samples=61 iops : min= 18, max= 68, avg=39.84, stdev=10.90, samples=61 write: IOPS=42, BW=170KiB/s (174kB/s)(5256KiB/30884msec); 0 zone resets slat (usec): min=26, max=36008, avg=252.99, stdev=1302.67 clat (msec): min=47, max=345, avg=188.08, stdev=48.02 lat (msec): min=48, max=345, avg=188.34, stdev=48.01 clat percentiles (msec): | 1.00th=[ 96], 5.00th=[ 116], 10.00th=[ 129], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 347], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 79, max= 305, per=25.17%, avg=169.39, stdev=45.42, samples=61 iops : min= 19, max= 76, avg=41.85, stdev=11.40, samples=61 lat (msec) : 50=0.04%, 100=2.15%, 250=88.75%, 500=9.06% cpu : usr=0.31%, sys=1.90%, ctx=4184, 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=179854: Wed Sep 16 21:22:12 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5060KiB/31009msec) slat (usec): min=79, max=196995, avg=13923.04, stdev=9634.36 clat (msec): min=76, max=354, avg=182.84, stdev=48.15 lat (msec): min=81, max=369, avg=196.77, stdev=50.28 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 111], 10.00th=[ 124], 20.00th=[ 144], | 30.00th=[ 155], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 222], 90.00th=[ 247], 95.00th=[ 271], | 99.00th=[ 321], 99.50th=[ 330], 99.90th=[ 342], 99.95th=[ 355], | 99.99th=[ 355] bw ( KiB/s): min= 51, max= 247, per=25.10%, avg=162.43, stdev=38.66, samples=61 iops : min= 12, max= 61, avg=40.11, stdev= 9.74, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5180KiB/31009msec); 0 zone resets slat (usec): min=26, max=10265, avg=238.14, stdev=823.67 clat (msec): min=84, max=371, avg=187.85, stdev=49.72 lat (msec): min=84, max=371, avg=188.09, stdev=49.70 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 113], 10.00th=[ 127], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 194], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 253], 95.00th=[ 279], | 99.00th=[ 330], 99.50th=[ 334], 99.90th=[ 372], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 51, max= 336, per=24.63%, avg=165.79, stdev=52.26, samples=61 iops : min= 12, max= 84, avg=40.95, stdev=13.13, samples=61 lat (msec) : 100=1.95%, 250=88.24%, 500=9.80% cpu : usr=0.35%, sys=1.92%, ctx=4347, 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=647KiB/s (663kB/s), 161KiB/s-165KiB/s (165kB/s-169kB/s), io=19.6MiB (20.5MB), run=30624-31009msec WRITE: bw=674KiB/s (690kB/s), 167KiB/s-171KiB/s (171kB/s-175kB/s), io=20.4MiB (21.4MB), run=30624-31009msec 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=179864: Wed Sep 16 21:22:23 2026 read: IOPS=1, BW=68.0MiB/s (71.3MB/s)(40.0MiB/588msec) slat (nsec): min=67189k, max=67189k, avg=67188565.00, stdev= 0.00 clat (nsec): min=494808k, max=494808k, avg=494808115.00, stdev= 0.00 lat (nsec): min=562002k, max=562002k, avg=562002380.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] lat (msec) : 500=100.00% cpu : usr=0.34%, sys=2.56%, ctx=7, 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=68.0MiB/s (71.3MB/s), 68.0MiB/s-68.0MiB/s (71.3MB/s-71.3MB/s), io=40.0MiB (41.9MB), run=588-588msec 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