== sanity test 398c: run fio to test AIO ================= 14:04:19 (1788977059) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.542834 s, 77.3 MB/s osc.lustre-OST0000-osc-ffff98445a156000.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=180981: Wed Sep 9 14:05:01 2026 write: IOPS=81, BW=327KiB/s (334kB/s)(10.0MiB/31357msec); 0 zone resets slat (usec): min=22, max=7894, avg=124.93, stdev=388.89 clat (msec): min=19, max=349, avg=194.86, stdev=46.08 lat (msec): min=19, max=349, avg=194.99, stdev=46.08 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 128], 10.00th=[ 140], 20.00th=[ 157], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 255], 95.00th=[ 279], | 99.00th=[ 313], 99.50th=[ 351], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 351] bw ( KiB/s): min= 127, max= 505, per=24.93%, avg=325.32, stdev=77.91, samples=62 iops : min= 31, max= 126, avg=80.85, stdev=19.51, samples=62 lat (msec) : 20=0.04%, 50=0.08%, 100=0.62%, 250=86.91%, 500=12.34% cpu : usr=0.11%, sys=0.65%, ctx=1518, 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=180982: Wed Sep 9 14:05:01 2026 write: IOPS=81, BW=327KiB/s (335kB/s)(10.0MiB/31328msec); 0 zone resets slat (usec): min=30, max=11582, avg=180.98, stdev=602.92 clat (msec): min=34, max=357, avg=194.78, stdev=46.80 lat (msec): min=34, max=358, avg=194.97, stdev=46.79 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 128], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 255], 95.00th=[ 271], | 99.00th=[ 326], 99.50th=[ 334], 99.90th=[ 351], 99.95th=[ 351], | 99.99th=[ 359] bw ( KiB/s): min= 151, max= 498, per=25.03%, avg=326.63, stdev=70.62, samples=62 iops : min= 37, max= 124, avg=81.18, stdev=17.70, samples=62 lat (msec) : 50=0.16%, 100=0.82%, 250=86.72%, 500=12.30% cpu : usr=0.13%, sys=0.75%, ctx=2726, 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=180983: Wed Sep 9 14:05:01 2026 write: IOPS=82, BW=328KiB/s (336kB/s)(10.0MiB/31179msec); 0 zone resets slat (usec): min=27, max=20537, avg=183.97, stdev=797.30 clat (msec): min=64, max=404, avg=194.53, stdev=46.59 lat (msec): min=64, max=404, avg=194.71, stdev=46.60 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 169], 40.00th=[ 184], 50.00th=[ 194], 60.00th=[ 209], | 70.00th=[ 220], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 268], | 99.00th=[ 313], 99.50th=[ 351], 99.90th=[ 359], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 176, max= 502, per=25.02%, avg=326.53, stdev=71.77, samples=62 iops : min= 44, max= 125, avg=81.13, stdev=17.92, samples=62 lat (msec) : 100=1.91%, 250=86.95%, 500=11.13% cpu : usr=0.12%, sys=0.69%, ctx=1810, 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=180984: Wed Sep 9 14:05:01 2026 write: IOPS=81, BW=326KiB/s (334kB/s)(10.0MiB/31385msec); 0 zone resets slat (usec): min=28, max=15167, avg=192.07, stdev=749.00 clat (msec): min=15, max=367, avg=195.14, stdev=45.75 lat (msec): min=15, max=367, avg=195.33, stdev=45.74 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 124], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 218], 80.00th=[ 232], 90.00th=[ 253], 95.00th=[ 275], | 99.00th=[ 321], 99.50th=[ 326], 99.90th=[ 368], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 223, max= 518, per=24.88%, avg=324.69, stdev=66.58, samples=62 iops : min= 55, max= 129, avg=80.66, stdev=16.67, samples=62 lat (msec) : 20=0.04%, 50=0.20%, 100=0.66%, 250=88.20%, 500=10.90% cpu : usr=0.21%, sys=0.83%, ctx=2376, 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=1305KiB/s (1336kB/s), 326KiB/s-328KiB/s (334kB/s-336kB/s), io=40.0MiB (41.9MB), run=31179-31385msec 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=180999: Wed Sep 9 14:05:49 2026 read: IOPS=34, BW=137KiB/s (141kB/s)(5048KiB/36746msec) slat (usec): min=26, max=81236, avg=16131.38, stdev=9639.91 clat (msec): min=61, max=411, avg=217.57, stdev=52.05 lat (msec): min=64, max=446, avg=233.71, stdev=54.46 clat percentiles (msec): | 1.00th=[ 114], 5.00th=[ 144], 10.00th=[ 157], 20.00th=[ 174], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 211], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 405], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 55, max= 222, per=25.05%, avg=136.27, stdev=33.45, samples=73 iops : min= 13, max= 55, avg=33.56, stdev= 8.37, samples=73 write: IOPS=35, BW=141KiB/s (145kB/s)(5192KiB/36746msec); 0 zone resets slat (usec): min=30, max=17483, avg=265.37, stdev=1103.79 clat (msec): min=82, max=404, avg=224.73, stdev=51.92 lat (msec): min=82, max=404, avg=225.00, stdev=51.94 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 148], 10.00th=[ 165], 20.00th=[ 182], | 30.00th=[ 197], 40.00th=[ 209], 50.00th=[ 220], 60.00th=[ 230], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 296], 95.00th=[ 317], | 99.00th=[ 380], 99.50th=[ 388], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 80, max= 221, per=24.82%, avg=140.47, stdev=33.55, samples=73 iops : min= 20, max= 55, avg=34.62, stdev= 8.38, samples=73 lat (msec) : 100=0.20%, 250=73.75%, 500=26.05% cpu : usr=0.25%, sys=1.42%, ctx=3946, 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=181000: Wed Sep 9 14:05:49 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4976KiB/36856msec) slat (usec): min=3693, max=69201, avg=16462.68, stdev=9638.45 clat (msec): min=45, max=396, avg=218.03, stdev=52.72 lat (msec): min=53, max=432, avg=234.51, stdev=55.11 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 201], 50.00th=[ 213], 60.00th=[ 226], | 70.00th=[ 241], 80.00th=[ 257], 90.00th=[ 292], 95.00th=[ 321], | 99.00th=[ 355], 99.50th=[ 376], 99.90th=[ 384], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 31, max= 214, per=24.62%, avg=133.95, stdev=32.58, samples=73 iops : min= 7, max= 53, avg=32.99, stdev= 8.13, samples=73 write: IOPS=35, BW=143KiB/s (146kB/s)(5264KiB/36856msec); 0 zone resets slat (usec): min=32, max=22179, avg=193.74, stdev=747.98 clat (msec): min=63, max=403, avg=223.71, stdev=49.06 lat (msec): min=63, max=403, avg=223.91, stdev=49.04 clat percentiles (msec): | 1.00th=[ 130], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 182], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 245], 80.00th=[ 266], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 71, max= 224, per=25.13%, avg=142.25, stdev=37.60, samples=73 iops : min= 17, max= 56, avg=35.07, stdev= 9.46, samples=73 lat (msec) : 50=0.04%, 100=0.20%, 250=74.02%, 500=25.74% cpu : usr=0.22%, sys=1.51%, ctx=4093, 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=181001: Wed Sep 9 14:05:49 2026 read: IOPS=33, BW=135KiB/s (139kB/s)(4984KiB/36841msec) slat (usec): min=2915, max=68343, avg=16445.04, stdev=9537.28 clat (msec): min=45, max=411, avg=216.61, stdev=52.17 lat (msec): min=56, max=451, avg=233.06, stdev=54.75 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 176], | 30.00th=[ 188], 40.00th=[ 199], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 234], 80.00th=[ 253], 90.00th=[ 288], 95.00th=[ 317], | 99.00th=[ 372], 99.50th=[ 384], 99.90th=[ 409], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 55, max= 231, per=24.82%, avg=135.04, stdev=36.79, samples=73 iops : min= 13, max= 57, avg=33.26, stdev= 9.21, samples=73 write: IOPS=35, BW=143KiB/s (146kB/s)(5256KiB/36841msec); 0 zone resets slat (usec): min=37, max=21011, avg=298.47, stdev=1336.80 clat (msec): min=70, max=416, avg=224.94, stdev=49.59 lat (msec): min=71, max=416, avg=225.25, stdev=49.57 clat percentiles (msec): | 1.00th=[ 136], 5.00th=[ 157], 10.00th=[ 169], 20.00th=[ 184], | 30.00th=[ 197], 40.00th=[ 205], 50.00th=[ 218], 60.00th=[ 230], | 70.00th=[ 249], 80.00th=[ 268], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 359], 99.50th=[ 372], 99.90th=[ 388], 99.95th=[ 418], | 99.99th=[ 418] bw ( KiB/s): min= 79, max= 253, per=25.03%, avg=141.67, stdev=32.75, samples=73 iops : min= 19, max= 63, avg=34.92, stdev= 8.23, samples=73 lat (msec) : 50=0.08%, 100=0.04%, 250=74.41%, 500=25.47% cpu : usr=0.23%, sys=1.43%, ctx=4083, 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=181002: Wed Sep 9 14:05:49 2026 read: IOPS=34, BW=138KiB/s (141kB/s)(5060KiB/36673msec) slat (usec): min=2626, max=81446, avg=15980.51, stdev=9422.18 clat (msec): min=29, max=407, avg=215.61, stdev=52.22 lat (msec): min=44, max=462, avg=231.59, stdev=54.66 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 142], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 55, max= 215, per=25.26%, avg=137.39, stdev=35.99, samples=72 iops : min= 13, max= 53, avg=33.85, stdev= 8.97, samples=72 write: IOPS=35, BW=141KiB/s (145kB/s)(5180KiB/36673msec); 0 zone resets slat (usec): min=32, max=16184, avg=217.63, stdev=745.82 clat (msec): min=84, max=406, avg=224.04, stdev=50.55 lat (msec): min=85, max=407, avg=224.26, stdev=50.55 clat percentiles (msec): | 1.00th=[ 128], 5.00th=[ 155], 10.00th=[ 167], 20.00th=[ 184], | 30.00th=[ 194], 40.00th=[ 205], 50.00th=[ 215], 60.00th=[ 228], | 70.00th=[ 247], 80.00th=[ 266], 90.00th=[ 292], 95.00th=[ 317], | 99.00th=[ 368], 99.50th=[ 380], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 56, max= 208, per=24.81%, avg=140.40, stdev=33.43, samples=72 iops : min= 14, max= 52, avg=34.61, stdev= 8.42, samples=72 lat (msec) : 50=0.08%, 100=0.12%, 250=74.45%, 500=25.35% cpu : usr=0.23%, sys=1.45%, ctx=4288, 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=544KiB/s (558kB/s), 135KiB/s-138KiB/s (138kB/s-141kB/s), io=19.6MiB (20.5MB), run=36673-36856msec WRITE: bw=567KiB/s (580kB/s), 141KiB/s-143KiB/s (145kB/s-146kB/s), io=20.4MiB (21.4MB), run=36673-36856msec 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=181012: Wed Sep 9 14:06:00 2026 read: IOPS=2, BW=81.0MiB/s (85.9MB/s)(40.0MiB/488msec) slat (nsec): min=50752k, max=50752k, avg=50752143.00, stdev= 0.00 clat (nsec): min=407079k, max=407079k, avg=407078899.00, stdev= 0.00 lat (nsec): min=457836k, max=457836k, avg=457835722.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 409], 5.00th=[ 409], 10.00th=[ 409], 20.00th=[ 409], | 30.00th=[ 409], 40.00th=[ 409], 50.00th=[ 409], 60.00th=[ 409], | 70.00th=[ 409], 80.00th=[ 409], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.46%, ctx=4, majf=0, minf=8 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=81.0MiB/s (85.9MB/s), 81.0MiB/s-81.0MiB/s (85.9MB/s-85.9MB/s), io=40.0MiB (41.9MB), run=488-488msec 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