== sanity test 398c: run fio to test AIO ================= 23:13:46 (1787800426) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.544076 s, 77.1 MB/s osc.lustre-OST0000-osc-ffff980a203ef800.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=180067: Wed Aug 26 23:14:25 2026 write: IOPS=86, BW=345KiB/s (353kB/s)(10.0MiB/29717msec); 0 zone resets slat (usec): min=28, max=13795, avg=235.28, stdev=717.32 clat (msec): min=26, max=524, avg=184.57, stdev=61.51 lat (msec): min=27, max=524, avg=184.80, stdev=61.52 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 117], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 215], 90.00th=[ 262], 95.00th=[ 317], | 99.00th=[ 401], 99.50th=[ 426], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 135, max= 517, per=25.14%, avg=346.45, stdev=96.10, samples=58 iops : min= 33, max= 129, avg=86.10, stdev=24.05, samples=58 lat (msec) : 50=0.16%, 100=0.90%, 250=87.38%, 500=11.37%, 750=0.20% cpu : usr=0.19%, sys=1.06%, ctx=2565, 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=180068: Wed Aug 26 23:14:25 2026 write: IOPS=86, BW=345KiB/s (354kB/s)(10.0MiB/29649msec); 0 zone resets slat (usec): min=27, max=11236, avg=206.13, stdev=608.82 clat (msec): min=46, max=574, avg=184.38, stdev=60.63 lat (msec): min=46, max=575, avg=184.59, stdev=60.63 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 116], 10.00th=[ 128], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 169], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 220], 90.00th=[ 259], 95.00th=[ 309], | 99.00th=[ 393], 99.50th=[ 409], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 575] bw ( KiB/s): min= 159, max= 533, per=25.13%, avg=346.26, stdev=95.61, samples=58 iops : min= 39, max= 133, avg=86.07, stdev=23.96, samples=58 lat (msec) : 50=0.08%, 100=1.60%, 250=86.64%, 500=11.64%, 750=0.04% cpu : usr=0.16%, sys=1.03%, ctx=2394, 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=180069: Wed Aug 26 23:14:25 2026 write: IOPS=86, BW=345KiB/s (354kB/s)(10.0MiB/29651msec); 0 zone resets slat (usec): min=29, max=16315, avg=254.46, stdev=709.81 clat (msec): min=19, max=634, avg=184.73, stdev=63.68 lat (msec): min=19, max=634, avg=184.98, stdev=63.65 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 115], 10.00th=[ 124], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 186], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 259], 95.00th=[ 309], | 99.00th=[ 401], 99.50th=[ 447], 99.90th=[ 634], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 143, max= 509, per=25.18%, avg=346.95, stdev=91.49, samples=58 iops : min= 35, max= 127, avg=86.24, stdev=22.94, samples=58 lat (msec) : 20=0.04%, 50=0.08%, 100=1.56%, 250=87.11%, 500=10.82% lat (msec) : 750=0.39% cpu : usr=0.21%, sys=1.12%, ctx=2733, 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=180070: Wed Aug 26 23:14:25 2026 write: IOPS=86, BW=345KiB/s (353kB/s)(10.0MiB/29689msec); 0 zone resets slat (usec): min=26, max=15272, avg=232.57, stdev=807.92 clat (msec): min=29, max=505, avg=184.59, stdev=60.67 lat (msec): min=29, max=505, avg=184.82, stdev=60.67 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 121], 10.00th=[ 127], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 174], 60.00th=[ 184], | 70.00th=[ 199], 80.00th=[ 220], 90.00th=[ 257], 95.00th=[ 317], | 99.00th=[ 401], 99.50th=[ 414], 99.90th=[ 456], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 159, max= 517, per=25.13%, avg=346.29, stdev=88.56, samples=58 iops : min= 39, max= 129, avg=86.09, stdev=22.14, samples=58 lat (msec) : 50=0.08%, 100=1.99%, 250=86.09%, 500=11.76%, 750=0.08% cpu : usr=0.19%, sys=0.90%, ctx=2409, 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=1378KiB/s (1411kB/s), 345KiB/s-345KiB/s (353kB/s-354kB/s), io=40.0MiB (41.9MB), run=29649-29717msec 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=180085: Wed Aug 26 23:15:11 2026 read: IOPS=35, BW=143KiB/s (146kB/s)(5048KiB/35379msec) slat (usec): min=2671, max=63931, avg=15492.19, stdev=8909.51 clat (msec): min=73, max=466, avg=208.56, stdev=52.80 lat (msec): min=81, max=478, avg=224.06, stdev=54.81 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 134], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 178], 40.00th=[ 190], 50.00th=[ 201], 60.00th=[ 215], | 70.00th=[ 230], 80.00th=[ 251], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 456], 99.95th=[ 468], | 99.99th=[ 468] bw ( KiB/s): min= 38, max= 231, per=25.05%, avg=142.04, stdev=36.30, samples=70 iops : min= 9, max= 57, avg=34.99, stdev= 9.13, samples=70 write: IOPS=36, BW=147KiB/s (150kB/s)(5192KiB/35379msec); 0 zone resets slat (usec): min=35, max=14298, avg=261.06, stdev=766.82 clat (msec): min=80, max=440, avg=214.45, stdev=52.71 lat (msec): min=80, max=440, avg=214.72, stdev=52.75 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 140], 10.00th=[ 153], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 197], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 234], 80.00th=[ 251], 90.00th=[ 284], 95.00th=[ 313], | 99.00th=[ 368], 99.50th=[ 388], 99.90th=[ 409], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 38, max= 256, per=24.83%, avg=146.50, stdev=37.78, samples=70 iops : min= 9, max= 64, avg=36.10, stdev= 9.49, samples=70 lat (msec) : 100=0.27%, 250=78.67%, 500=21.05% cpu : usr=0.25%, sys=1.79%, ctx=4625, 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=180086: Wed Aug 26 23:15:11 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4976KiB/35339msec) slat (usec): min=3141, max=65202, avg=15494.42, stdev=8575.96 clat (msec): min=17, max=450, avg=208.54, stdev=54.00 lat (msec): min=34, max=458, avg=224.04, stdev=56.27 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 136], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 188], 50.00th=[ 201], 60.00th=[ 213], | 70.00th=[ 230], 80.00th=[ 253], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 359], 99.50th=[ 380], 99.90th=[ 414], 99.95th=[ 451], | 99.99th=[ 451] bw ( KiB/s): min= 38, max= 230, per=24.68%, avg=139.93, stdev=37.07, samples=70 iops : min= 9, max= 57, avg=34.44, stdev= 9.32, samples=70 write: IOPS=37, BW=149KiB/s (153kB/s)(5264KiB/35339msec); 0 zone resets slat (usec): min=28, max=9693, avg=248.62, stdev=692.52 clat (msec): min=94, max=436, avg=214.91, stdev=53.31 lat (msec): min=94, max=436, avg=215.16, stdev=53.32 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 138], 10.00th=[ 150], 20.00th=[ 169], | 30.00th=[ 184], 40.00th=[ 197], 50.00th=[ 213], 60.00th=[ 224], | 70.00th=[ 239], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 313], | 99.00th=[ 372], 99.50th=[ 388], 99.90th=[ 426], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 71, max= 246, per=25.19%, avg=148.61, stdev=39.98, samples=70 iops : min= 17, max= 61, avg=36.61, stdev=10.03, samples=70 lat (msec) : 20=0.04%, 50=0.04%, 100=0.31%, 250=77.62%, 500=21.99% cpu : usr=0.22%, sys=1.81%, ctx=4135, 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=180087: Wed Aug 26 23:15:11 2026 read: IOPS=35, BW=141KiB/s (144kB/s)(4984KiB/35392msec) slat (usec): min=3027, max=61404, avg=15455.29, stdev=8710.18 clat (msec): min=16, max=420, avg=210.23, stdev=55.26 lat (msec): min=41, max=439, avg=225.70, stdev=57.23 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 128], 10.00th=[ 144], 20.00th=[ 167], | 30.00th=[ 180], 40.00th=[ 192], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 236], 80.00th=[ 257], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 384], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 30, max= 239, per=24.74%, avg=140.30, stdev=35.90, samples=70 iops : min= 7, max= 59, avg=34.53, stdev= 9.02, samples=70 write: IOPS=37, BW=149KiB/s (152kB/s)(5256KiB/35392msec); 0 zone resets slat (usec): min=31, max=21576, avg=325.58, stdev=1028.53 clat (msec): min=45, max=404, avg=213.32, stdev=52.16 lat (msec): min=46, max=404, avg=213.65, stdev=52.18 clat percentiles (msec): | 1.00th=[ 116], 5.00th=[ 138], 10.00th=[ 153], 20.00th=[ 171], | 30.00th=[ 182], 40.00th=[ 194], 50.00th=[ 207], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 284], 95.00th=[ 309], | 99.00th=[ 355], 99.50th=[ 380], 99.90th=[ 401], 99.95th=[ 405], | 99.99th=[ 405] bw ( KiB/s): min= 45, max= 248, per=24.98%, avg=147.36, stdev=43.09, samples=70 iops : min= 11, max= 62, avg=36.31, stdev=10.80, samples=70 lat (msec) : 20=0.04%, 50=0.04%, 100=0.43%, 250=76.84%, 500=22.66% cpu : usr=0.27%, sys=1.74%, ctx=4648, 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=180088: Wed Aug 26 23:15:11 2026 read: IOPS=35, BW=144KiB/s (147kB/s)(5060KiB/35145msec) slat (usec): min=48, max=62408, avg=15314.58, stdev=8610.02 clat (msec): min=36, max=421, avg=207.93, stdev=51.93 lat (msec): min=36, max=447, avg=223.25, stdev=54.04 clat percentiles (msec): | 1.00th=[ 105], 5.00th=[ 133], 10.00th=[ 146], 20.00th=[ 165], | 30.00th=[ 180], 40.00th=[ 190], 50.00th=[ 203], 60.00th=[ 218], | 70.00th=[ 230], 80.00th=[ 249], 90.00th=[ 279], 95.00th=[ 300], | 99.00th=[ 351], 99.50th=[ 363], 99.90th=[ 384], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 63, max= 248, per=25.35%, avg=143.75, stdev=35.58, samples=69 iops : min= 15, max= 62, avg=35.41, stdev= 9.01, samples=69 write: IOPS=36, BW=147KiB/s (151kB/s)(5180KiB/35145msec); 0 zone resets slat (usec): min=32, max=9744, avg=269.64, stdev=744.43 clat (msec): min=27, max=409, avg=215.02, stdev=52.60 lat (msec): min=32, max=409, avg=215.29, stdev=52.53 clat percentiles (msec): | 1.00th=[ 112], 5.00th=[ 138], 10.00th=[ 155], 20.00th=[ 174], | 30.00th=[ 186], 40.00th=[ 199], 50.00th=[ 211], 60.00th=[ 222], | 70.00th=[ 236], 80.00th=[ 255], 90.00th=[ 288], 95.00th=[ 309], | 99.00th=[ 368], 99.50th=[ 393], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 70, max= 255, per=24.91%, avg=146.96, stdev=36.43, samples=69 iops : min= 17, max= 63, avg=36.20, stdev= 9.10, samples=69 lat (msec) : 50=0.16%, 100=0.27%, 250=78.75%, 500=20.82% cpu : usr=0.24%, sys=1.77%, ctx=4339, 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=567KiB/s (581kB/s), 141KiB/s-144KiB/s (144kB/s-147kB/s), io=19.6MiB (20.5MB), run=35145-35392msec WRITE: bw=590KiB/s (604kB/s), 147KiB/s-149KiB/s (150kB/s-153kB/s), io=20.4MiB (21.4MB), run=35145-35392msec 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=180097: Wed Aug 26 23:15:20 2026 read: IOPS=1, BW=61.5MiB/s (64.5MB/s)(40.0MiB/650msec) slat (nsec): min=47062k, max=47062k, avg=47061703.00, stdev= 0.00 clat (nsec): min=574879k, max=574879k, avg=574878746.00, stdev= 0.00 lat (nsec): min=621945k, max=621945k, avg=621944635.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 575], 5.00th=[ 575], 10.00th=[ 575], 20.00th=[ 575], | 30.00th=[ 575], 40.00th=[ 575], 50.00th=[ 575], 60.00th=[ 575], | 70.00th=[ 575], 80.00th=[ 575], 90.00th=[ 575], 95.00th=[ 575], | 99.00th=[ 575], 99.50th=[ 575], 99.90th=[ 575], 99.95th=[ 575], | 99.99th=[ 575] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=2.16%, ctx=14, 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=61.5MiB/s (64.5MB/s), 61.5MiB/s-61.5MiB/s (64.5MB/s-64.5MB/s), io=40.0MiB (41.9MB), run=650-650msec 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