== sanity test 398c: run fio to test AIO ================= 14:41:09 (1787856069) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.351694 s, 119 MB/s osc.lustre-OST0000-osc-ffff8c2d89aad800.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=180511: Thu Aug 27 14:41:47 2026 write: IOPS=93, BW=374KiB/s (383kB/s)(10.0MiB/27347msec); 0 zone resets slat (usec): min=29, max=13768, avg=211.44, stdev=817.01 clat (msec): min=19, max=281, avg=170.03, stdev=35.82 lat (msec): min=20, max=287, avg=170.24, stdev=35.81 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 121], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 176], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 220], 95.00th=[ 236], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 275], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 261, max= 510, per=24.98%, avg=373.89, stdev=62.46, samples=54 iops : min= 65, max= 127, avg=93.09, stdev=15.58, samples=54 lat (msec) : 20=0.04%, 50=0.12%, 100=0.62%, 250=96.76%, 500=2.46% cpu : usr=0.15%, sys=0.85%, ctx=2727, 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=180512: Thu Aug 27 14:41:47 2026 write: IOPS=93, BW=376KiB/s (385kB/s)(10.0MiB/27265msec); 0 zone resets slat (usec): min=30, max=12807, avg=151.87, stdev=501.70 clat (msec): min=22, max=281, avg=169.70, stdev=34.85 lat (msec): min=22, max=281, avg=169.85, stdev=34.83 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 123], 10.00th=[ 128], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 228], | 99.00th=[ 253], 99.50th=[ 264], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 284] bw ( KiB/s): min= 255, max= 534, per=25.03%, avg=374.74, stdev=60.49, samples=54 iops : min= 63, max= 133, avg=93.31, stdev=15.11, samples=54 lat (msec) : 50=0.70%, 100=0.16%, 250=97.85%, 500=1.29% cpu : usr=0.11%, sys=0.84%, ctx=2189, 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=180513: Thu Aug 27 14:41:47 2026 write: IOPS=94, BW=377KiB/s (386kB/s)(10.0MiB/27179msec); 0 zone resets slat (usec): min=29, max=16020, avg=177.60, stdev=708.66 clat (msec): min=9, max=289, avg=169.54, stdev=36.75 lat (msec): min=9, max=289, avg=169.72, stdev=36.72 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 121], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 218], 95.00th=[ 236], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 255, max= 510, per=25.02%, avg=374.50, stdev=58.08, samples=54 iops : min= 63, max= 127, avg=93.26, stdev=14.57, samples=54 lat (msec) : 10=0.04%, 20=0.04%, 100=1.33%, 250=96.29%, 500=2.30% cpu : usr=0.16%, sys=0.86%, ctx=2550, 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=180514: Thu Aug 27 14:41:47 2026 write: IOPS=93, BW=375KiB/s (384kB/s)(10.0MiB/27333msec); 0 zone resets slat (usec): min=29, max=19156, avg=185.05, stdev=844.35 clat (msec): min=44, max=289, avg=169.98, stdev=34.44 lat (msec): min=45, max=289, avg=170.17, stdev=34.44 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 124], 10.00th=[ 130], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 199], 90.00th=[ 218], 95.00th=[ 232], | 99.00th=[ 266], 99.50th=[ 268], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 288] bw ( KiB/s): min= 263, max= 518, per=24.97%, avg=373.74, stdev=62.21, samples=54 iops : min= 65, max= 129, avg=93.06, stdev=15.53, samples=54 lat (msec) : 50=0.04%, 100=0.66%, 250=97.11%, 500=2.19% cpu : usr=0.18%, sys=0.83%, ctx=2244, 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=1498KiB/s (1534kB/s), 374KiB/s-377KiB/s (383kB/s-386kB/s), io=40.0MiB (41.9MB), run=27179-27347msec 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=180529: Thu Aug 27 14:42:29 2026 read: IOPS=38, BW=152KiB/s (156kB/s)(5048KiB/33205msec) slat (usec): min=2490, max=75576, avg=14484.72, stdev=8761.31 clat (msec): min=17, max=382, avg=196.18, stdev=52.07 lat (msec): min=41, max=413, avg=210.67, stdev=54.10 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 234], 90.00th=[ 275], 95.00th=[ 300], | 99.00th=[ 338], 99.50th=[ 355], 99.90th=[ 376], 99.95th=[ 384], | 99.99th=[ 384] bw ( KiB/s): min= 63, max= 232, per=24.90%, avg=150.38, stdev=37.52, samples=65 iops : min= 15, max= 58, avg=37.12, stdev= 9.43, samples=65 write: IOPS=39, BW=156KiB/s (160kB/s)(5192KiB/33205msec); 0 zone resets slat (usec): min=32, max=14641, avg=193.69, stdev=794.46 clat (msec): min=76, max=377, avg=202.06, stdev=46.89 lat (msec): min=76, max=377, avg=202.25, stdev=46.91 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 134], 10.00th=[ 148], 20.00th=[ 165], | 30.00th=[ 176], 40.00th=[ 188], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 268], 95.00th=[ 296], | 99.00th=[ 334], 99.50th=[ 342], 99.90th=[ 363], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 58, max= 255, per=24.75%, avg=155.66, stdev=44.27, samples=65 iops : min= 14, max= 63, avg=38.43, stdev=11.10, samples=65 lat (msec) : 20=0.04%, 100=0.78%, 250=84.18%, 500=15.00% cpu : usr=0.23%, sys=1.67%, ctx=4414, 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=180530: Thu Aug 27 14:42:29 2026 read: IOPS=37, BW=150KiB/s (154kB/s)(4976KiB/33101msec) slat (usec): min=36, max=80600, avg=14430.47, stdev=8755.81 clat (msec): min=67, max=379, avg=196.33, stdev=50.44 lat (msec): min=76, max=397, avg=210.77, stdev=52.79 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 121], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 236], 90.00th=[ 264], 95.00th=[ 288], | 99.00th=[ 334], 99.50th=[ 351], 99.90th=[ 376], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 47, max= 240, per=24.67%, avg=149.00, stdev=40.71, samples=65 iops : min= 11, max= 60, avg=36.75, stdev=10.25, samples=65 write: IOPS=39, BW=159KiB/s (163kB/s)(5264KiB/33101msec); 0 zone resets slat (usec): min=31, max=16314, avg=182.31, stdev=785.90 clat (msec): min=41, max=378, avg=202.49, stdev=51.25 lat (msec): min=41, max=378, avg=202.67, stdev=51.25 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 207], | 70.00th=[ 222], 80.00th=[ 236], 90.00th=[ 275], 95.00th=[ 309], | 99.00th=[ 342], 99.50th=[ 347], 99.90th=[ 359], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 86, max= 263, per=25.26%, avg=158.91, stdev=41.09, samples=65 iops : min= 21, max= 65, avg=39.23, stdev=10.32, samples=65 lat (msec) : 50=0.04%, 100=1.05%, 250=83.71%, 500=15.20% cpu : usr=0.21%, sys=1.31%, ctx=3647, 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=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=180531: Thu Aug 27 14:42:29 2026 read: IOPS=37, BW=150KiB/s (154kB/s)(4984KiB/33209msec) slat (usec): min=2843, max=92339, avg=14622.38, stdev=9221.03 clat (msec): min=10, max=407, avg=197.31, stdev=52.83 lat (msec): min=18, max=436, avg=211.94, stdev=54.67 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 122], 10.00th=[ 134], 20.00th=[ 155], | 30.00th=[ 171], 40.00th=[ 184], 50.00th=[ 192], 60.00th=[ 205], | 70.00th=[ 220], 80.00th=[ 234], 90.00th=[ 266], 95.00th=[ 300], | 99.00th=[ 355], 99.50th=[ 372], 99.90th=[ 401], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 71, max= 271, per=24.64%, avg=148.82, stdev=41.99, samples=65 iops : min= 17, max= 67, avg=36.72, stdev=10.57, samples=65 write: IOPS=39, BW=158KiB/s (162kB/s)(5256KiB/33209msec); 0 zone resets slat (usec): min=30, max=10191, avg=165.17, stdev=565.58 clat (msec): min=74, max=394, avg=200.66, stdev=49.79 lat (msec): min=74, max=394, avg=200.83, stdev=49.79 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 129], 10.00th=[ 144], 20.00th=[ 161], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 194], 60.00th=[ 205], | 70.00th=[ 218], 80.00th=[ 236], 90.00th=[ 266], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 368], 99.90th=[ 388], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 80, max= 279, per=24.90%, avg=156.63, stdev=41.34, samples=65 iops : min= 20, max= 69, avg=38.66, stdev=10.33, samples=65 lat (msec) : 20=0.04%, 50=0.12%, 100=0.70%, 250=84.77%, 500=14.38% cpu : usr=0.23%, sys=1.48%, ctx=3978, 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=180532: Thu Aug 27 14:42:29 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(5060KiB/33098msec) slat (usec): min=2984, max=60986, avg=14142.95, stdev=8026.26 clat (msec): min=86, max=387, avg=194.77, stdev=48.35 lat (msec): min=97, max=393, avg=208.92, stdev=50.05 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 123], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 169], 40.00th=[ 178], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 215], 80.00th=[ 230], 90.00th=[ 264], 95.00th=[ 284], | 99.00th=[ 330], 99.50th=[ 338], 99.90th=[ 376], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 58, max= 248, per=25.19%, avg=152.12, stdev=39.97, samples=65 iops : min= 14, max= 62, avg=37.54, stdev=10.00, samples=65 write: IOPS=39, BW=157KiB/s (160kB/s)(5180KiB/33098msec); 0 zone resets slat (usec): min=32, max=8563, avg=150.95, stdev=450.65 clat (msec): min=90, max=373, avg=202.38, stdev=49.80 lat (msec): min=91, max=374, avg=202.54, stdev=49.81 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 130], 10.00th=[ 142], 20.00th=[ 163], | 30.00th=[ 176], 40.00th=[ 186], 50.00th=[ 197], 60.00th=[ 209], | 70.00th=[ 222], 80.00th=[ 239], 90.00th=[ 268], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 376], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 71, max= 248, per=24.80%, avg=155.98, stdev=39.84, samples=65 iops : min= 17, max= 62, avg=38.52, stdev=10.03, samples=65 lat (msec) : 100=0.55%, 250=85.43%, 500=14.02% cpu : usr=0.21%, sys=1.40%, ctx=3816, 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=604KiB/s (619kB/s), 150KiB/s-153KiB/s (154kB/s-157kB/s), io=19.6MiB (20.5MB), run=33098-33209msec WRITE: bw=629KiB/s (644kB/s), 156KiB/s-159KiB/s (160kB/s-163kB/s), io=20.4MiB (21.4MB), run=33098-33209msec 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=180541: Thu Aug 27 14:42:41 2026 read: IOPS=1, BW=75.2MiB/s (78.8MB/s)(40.0MiB/532msec) slat (nsec): min=28838k, max=28838k, avg=28838420.00, stdev= 0.00 clat (nsec): min=480399k, max=480399k, avg=480399335.00, stdev= 0.00 lat (nsec): min=509242k, max=509242k, avg=509242280.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 481], 5.00th=[ 481], 10.00th=[ 481], 20.00th=[ 481], | 30.00th=[ 481], 40.00th=[ 481], 50.00th=[ 481], 60.00th=[ 481], | 70.00th=[ 481], 80.00th=[ 481], 90.00th=[ 481], 95.00th=[ 481], | 99.00th=[ 481], 99.50th=[ 481], 99.90th=[ 481], 99.95th=[ 481], | 99.99th=[ 481] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.26%, ctx=12, majf=0, minf=7 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=75.2MiB/s (78.8MB/s), 75.2MiB/s-75.2MiB/s (78.8MB/s-78.8MB/s), io=40.0MiB (41.9MB), run=532-532msec 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