== sanity test 398c: run fio to test AIO ================= 11:49:30 (1788277770) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.577133 s, 72.7 MB/s osc.lustre-OST0000-osc-ffff8e3292b0d000.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=181125: Tue Sep 1 11:50:06 2026 write: IOPS=101, BW=404KiB/s (414kB/s)(10.0MiB/25329msec); 0 zone resets slat (usec): min=28, max=9566, avg=162.11, stdev=540.95 clat (msec): min=67, max=256, avg=157.43, stdev=33.45 lat (msec): min=67, max=256, avg=157.60, stdev=33.47 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 109], 10.00th=[ 121], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 224], | 99.00th=[ 245], 99.50th=[ 249], 99.90th=[ 255], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 253, max= 512, per=24.91%, avg=402.84, stdev=77.25, samples=50 iops : min= 63, max= 128, avg=100.34, stdev=19.39, samples=50 lat (msec) : 100=2.62%, 250=97.07%, 500=0.31% cpu : usr=0.14%, sys=0.76%, ctx=1923, 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=181126: Tue Sep 1 11:50:06 2026 write: IOPS=101, BW=406KiB/s (415kB/s)(10.0MiB/25252msec); 0 zone resets slat (usec): min=28, max=11992, avg=200.21, stdev=645.74 clat (msec): min=19, max=363, avg=157.48, stdev=35.42 lat (msec): min=19, max=363, avg=157.68, stdev=35.42 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 107], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 186], 90.00th=[ 203], 95.00th=[ 218], | 99.00th=[ 253], 99.50th=[ 300], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] bw ( KiB/s): min= 254, max= 520, per=25.06%, avg=405.26, stdev=70.33, samples=50 iops : min= 63, max= 130, avg=100.90, stdev=17.62, samples=50 lat (msec) : 20=0.04%, 50=0.16%, 100=2.15%, 250=96.05%, 500=1.60% cpu : usr=0.20%, sys=1.08%, ctx=2630, 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=181127: Tue Sep 1 11:50:06 2026 write: IOPS=101, BW=406KiB/s (415kB/s)(10.0MiB/25250msec); 0 zone resets slat (usec): min=28, max=10709, avg=183.17, stdev=528.66 clat (msec): min=31, max=290, avg=157.05, stdev=35.31 lat (msec): min=31, max=290, avg=157.23, stdev=35.29 clat percentiles (msec): | 1.00th=[ 79], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 131], | 30.00th=[ 140], 40.00th=[ 146], 50.00th=[ 153], 60.00th=[ 161], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 222], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 284], 99.95th=[ 292], | 99.99th=[ 292] bw ( KiB/s): min= 254, max= 528, per=25.06%, avg=405.18, stdev=62.59, samples=50 iops : min= 63, max= 132, avg=100.90, stdev=15.77, samples=50 lat (msec) : 50=0.55%, 100=1.99%, 250=95.90%, 500=1.56% cpu : usr=0.21%, sys=1.05%, ctx=3080, 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=181128: Tue Sep 1 11:50:06 2026 write: IOPS=101, BW=404KiB/s (414kB/s)(10.0MiB/25327msec); 0 zone resets slat (usec): min=23, max=18307, avg=229.43, stdev=875.84 clat (msec): min=22, max=287, avg=157.32, stdev=34.94 lat (msec): min=22, max=287, avg=157.55, stdev=34.89 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 109], 10.00th=[ 120], 20.00th=[ 131], | 30.00th=[ 138], 40.00th=[ 144], 50.00th=[ 153], 60.00th=[ 159], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 259], 99.50th=[ 284], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 254, max= 542, per=24.99%, avg=404.10, stdev=71.82, samples=50 iops : min= 63, max= 135, avg=100.62, stdev=18.01, samples=50 lat (msec) : 50=0.20%, 100=2.03%, 250=95.86%, 500=1.91% cpu : usr=0.24%, sys=0.92%, ctx=2806, 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=1617KiB/s (1656kB/s), 404KiB/s-406KiB/s (414kB/s-415kB/s), io=40.0MiB (41.9MB), run=25250-25329msec 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=181142: Tue Sep 1 11:50:48 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(5048KiB/32523msec) slat (usec): min=2466, max=60602, avg=14280.80, stdev=7961.98 clat (msec): min=81, max=400, avg=192.55, stdev=49.73 lat (msec): min=94, max=408, avg=206.83, stdev=51.54 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 211], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 338], 99.50th=[ 363], 99.90th=[ 388], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 64, max= 254, per=25.09%, avg=154.53, stdev=38.80, samples=64 iops : min= 16, max= 63, avg=38.16, stdev= 9.76, samples=64 write: IOPS=39, BW=160KiB/s (163kB/s)(5192KiB/32523msec); 0 zone resets slat (usec): min=30, max=24184, avg=231.07, stdev=940.50 clat (msec): min=31, max=408, avg=197.35, stdev=48.89 lat (msec): min=31, max=408, avg=197.58, stdev=48.92 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 257], 95.00th=[ 296], | 99.00th=[ 359], 99.50th=[ 376], 99.90th=[ 397], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 63, max= 270, per=24.86%, avg=159.36, stdev=42.94, samples=64 iops : min= 15, max= 67, avg=39.39, stdev=10.79, samples=64 lat (msec) : 50=0.04%, 100=0.86%, 250=86.64%, 500=12.46% cpu : usr=0.19%, sys=1.83%, ctx=4589, 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=181143: Tue Sep 1 11:50:48 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(4976KiB/32466msec) slat (usec): min=2736, max=86044, avg=13971.09, stdev=7878.45 clat (msec): min=28, max=398, avg=192.84, stdev=49.50 lat (msec): min=35, max=410, avg=206.81, stdev=50.87 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 125], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 228], 90.00th=[ 259], 95.00th=[ 288], | 99.00th=[ 347], 99.50th=[ 363], 99.90th=[ 393], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 62, max= 264, per=24.81%, avg=152.83, stdev=40.87, samples=64 iops : min= 15, max= 66, avg=37.73, stdev=10.25, samples=64 write: IOPS=40, BW=162KiB/s (166kB/s)(5264KiB/32466msec); 0 zone resets slat (usec): min=30, max=26406, avg=226.80, stdev=1040.89 clat (msec): min=41, max=445, avg=197.12, stdev=47.30 lat (msec): min=41, max=445, avg=197.35, stdev=47.38 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 133], 10.00th=[ 144], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 182], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 262], 95.00th=[ 284], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 372], 99.95th=[ 447], | 99.99th=[ 447] bw ( KiB/s): min= 78, max= 254, per=25.31%, avg=162.23, stdev=37.23, samples=64 iops : min= 19, max= 63, avg=40.09, stdev= 9.41, samples=64 lat (msec) : 50=0.08%, 100=1.13%, 250=86.05%, 500=12.73% cpu : usr=0.25%, sys=1.68%, ctx=4376, 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=181144: Tue Sep 1 11:50:48 2026 read: IOPS=38, BW=153KiB/s (157kB/s)(4984KiB/32548msec) slat (usec): min=2015, max=88596, avg=14348.85, stdev=8649.16 clat (msec): min=30, max=378, avg=193.38, stdev=49.19 lat (msec): min=38, max=405, avg=207.74, stdev=51.52 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 122], 10.00th=[ 138], 20.00th=[ 155], | 30.00th=[ 167], 40.00th=[ 178], 50.00th=[ 188], 60.00th=[ 199], | 70.00th=[ 211], 80.00th=[ 228], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 338], 99.50th=[ 351], 99.90th=[ 363], 99.95th=[ 380], | 99.99th=[ 380] bw ( KiB/s): min= 80, max= 216, per=24.81%, avg=152.83, stdev=33.60, samples=64 iops : min= 20, max= 54, avg=37.72, stdev= 8.44, samples=64 write: IOPS=40, BW=161KiB/s (165kB/s)(5256KiB/32548msec); 0 zone resets slat (usec): min=37, max=20527, avg=239.41, stdev=1032.38 clat (msec): min=83, max=369, avg=196.89, stdev=47.56 lat (msec): min=83, max=370, avg=197.13, stdev=47.62 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 169], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 201], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 292], | 99.00th=[ 334], 99.50th=[ 355], 99.90th=[ 368], 99.95th=[ 372], | 99.99th=[ 372] bw ( KiB/s): min= 76, max= 286, per=25.00%, avg=160.22, stdev=42.80, samples=64 iops : min= 19, max= 71, avg=39.59, stdev=10.76, samples=64 lat (msec) : 50=0.04%, 100=0.90%, 250=86.72%, 500=12.34% cpu : usr=0.26%, sys=1.79%, ctx=4383, 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=181145: Tue Sep 1 11:50:48 2026 read: IOPS=38, BW=155KiB/s (159kB/s)(5060KiB/32545msec) slat (usec): min=52, max=161856, avg=14360.52, stdev=9927.51 clat (msec): min=20, max=491, avg=192.49, stdev=53.13 lat (msec): min=20, max=501, avg=206.86, stdev=55.36 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 123], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 174], 50.00th=[ 186], 60.00th=[ 199], | 70.00th=[ 213], 80.00th=[ 230], 90.00th=[ 262], 95.00th=[ 288], | 99.00th=[ 363], 99.50th=[ 388], 99.90th=[ 489], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 64, max= 232, per=25.12%, avg=154.77, stdev=36.94, samples=64 iops : min= 16, max= 58, avg=38.23, stdev= 9.33, samples=64 write: IOPS=39, BW=159KiB/s (163kB/s)(5180KiB/32545msec); 0 zone resets slat (usec): min=32, max=13853, avg=228.98, stdev=774.79 clat (msec): min=64, max=475, avg=199.22, stdev=52.99 lat (msec): min=65, max=475, avg=199.45, stdev=52.99 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 130], 10.00th=[ 146], 20.00th=[ 159], | 30.00th=[ 171], 40.00th=[ 180], 50.00th=[ 190], 60.00th=[ 203], | 70.00th=[ 218], 80.00th=[ 234], 90.00th=[ 266], 95.00th=[ 288], | 99.00th=[ 376], 99.50th=[ 464], 99.90th=[ 472], 99.95th=[ 477], | 99.99th=[ 477] bw ( KiB/s): min= 62, max= 270, per=24.69%, avg=158.23, stdev=38.46, samples=64 iops : min= 15, max= 67, avg=39.09, stdev= 9.62, samples=64 lat (msec) : 50=0.16%, 100=1.29%, 250=84.57%, 500=13.98% cpu : usr=0.32%, sys=1.58%, ctx=4267, 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=617KiB/s (631kB/s), 153KiB/s-155KiB/s (157kB/s-159kB/s), io=19.6MiB (20.5MB), run=32466-32548msec WRITE: bw=642KiB/s (657kB/s), 159KiB/s-162KiB/s (163kB/s-166kB/s), io=20.4MiB (21.4MB), run=32466-32548msec 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=181155: Tue Sep 1 11:51:01 2026 read: IOPS=1, BW=65.1MiB/s (68.3MB/s)(40.0MiB/614msec) slat (nsec): min=35295k, max=35295k, avg=35295420.00, stdev= 0.00 clat (nsec): min=546608k, max=546608k, avg=546607588.00, stdev= 0.00 lat (nsec): min=581907k, max=581907k, avg=581907261.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 550], 5.00th=[ 550], 10.00th=[ 550], 20.00th=[ 550], | 30.00th=[ 550], 40.00th=[ 550], 50.00th=[ 550], 60.00th=[ 550], | 70.00th=[ 550], 80.00th=[ 550], 90.00th=[ 550], 95.00th=[ 550], | 99.00th=[ 550], 99.50th=[ 550], 99.90th=[ 550], 99.95th=[ 550], | 99.99th=[ 550] lat (msec) : 750=100.00% cpu : usr=0.33%, sys=1.31%, ctx=14, 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=65.1MiB/s (68.3MB/s), 65.1MiB/s-65.1MiB/s (68.3MB/s-68.3MB/s), io=40.0MiB (41.9MB), run=614-614msec 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