== sanity test 398c: run fio to test AIO ================= 16:30:50 (1784406650) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.176329 s, 238 MB/s osc.lustre-OST0000-osc-ffff8ca8d8a90800.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=147196: Sat Jul 18 16:31:39 2026 write: IOPS=56, BW=226KiB/s (232kB/s)(10.0MiB/45228msec); 0 zone resets slat (usec): min=39, max=3501, avg=260.18, stdev=188.62 clat (msec): min=101, max=525, avg=282.12, stdev=65.98 lat (msec): min=101, max=525, avg=282.38, stdev=65.99 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 186], 10.00th=[ 205], 20.00th=[ 230], | 30.00th=[ 251], 40.00th=[ 266], 50.00th=[ 279], 60.00th=[ 292], | 70.00th=[ 305], 80.00th=[ 330], 90.00th=[ 372], 95.00th=[ 405], | 99.00th=[ 456], 99.50th=[ 485], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 527] bw ( KiB/s): min= 136, max= 413, per=24.86%, avg=224.97, stdev=47.69, samples=90 iops : min= 34, max= 103, avg=56.13, stdev=11.93, samples=90 lat (msec) : 250=30.04%, 500=69.65%, 750=0.31% cpu : usr=0.14%, sys=1.08%, ctx=2906, 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=147197: Sat Jul 18 16:31:39 2026 write: IOPS=56, BW=226KiB/s (232kB/s)(10.0MiB/45241msec); 0 zone resets slat (usec): min=45, max=1782, avg=249.03, stdev=151.97 clat (msec): min=67, max=529, avg=282.12, stdev=65.72 lat (msec): min=68, max=529, avg=282.37, stdev=65.72 clat percentiles (msec): | 1.00th=[ 127], 5.00th=[ 186], 10.00th=[ 207], 20.00th=[ 230], | 30.00th=[ 249], 40.00th=[ 266], 50.00th=[ 279], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 338], 90.00th=[ 368], 95.00th=[ 401], | 99.00th=[ 447], 99.50th=[ 477], 99.90th=[ 527], 99.95th=[ 527], | 99.99th=[ 531] bw ( KiB/s): min= 128, max= 413, per=24.86%, avg=224.97, stdev=48.08, samples=90 iops : min= 32, max= 103, avg=56.13, stdev=12.01, samples=90 lat (msec) : 100=0.08%, 250=30.59%, 500=69.02%, 750=0.31% cpu : usr=0.12%, sys=1.08%, ctx=2914, 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=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=147198: Sat Jul 18 16:31:39 2026 write: IOPS=56, BW=227KiB/s (232kB/s)(10.0MiB/45146msec); 0 zone resets slat (usec): min=36, max=4525, avg=255.00, stdev=199.15 clat (msec): min=99, max=528, avg=281.71, stdev=67.62 lat (msec): min=99, max=529, avg=281.97, stdev=67.63 clat percentiles (msec): | 1.00th=[ 108], 5.00th=[ 176], 10.00th=[ 203], 20.00th=[ 230], | 30.00th=[ 249], 40.00th=[ 266], 50.00th=[ 279], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 330], 90.00th=[ 372], 95.00th=[ 405], | 99.00th=[ 464], 99.50th=[ 481], 99.90th=[ 518], 99.95th=[ 518], | 99.99th=[ 531] bw ( KiB/s): min= 128, max= 413, per=25.01%, avg=226.31, stdev=50.50, samples=89 iops : min= 32, max= 103, avg=56.47, stdev=12.62, samples=89 lat (msec) : 100=0.62%, 250=30.27%, 500=68.83%, 750=0.27% cpu : usr=0.11%, sys=1.08%, ctx=2848, 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=147199: Sat Jul 18 16:31:39 2026 write: IOPS=56, BW=227KiB/s (232kB/s)(10.0MiB/45108msec); 0 zone resets slat (usec): min=43, max=3535, avg=264.64, stdev=180.87 clat (msec): min=35, max=578, avg=281.35, stdev=67.69 lat (msec): min=36, max=578, avg=281.62, stdev=67.70 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 182], 10.00th=[ 205], 20.00th=[ 230], | 30.00th=[ 249], 40.00th=[ 262], 50.00th=[ 279], 60.00th=[ 292], | 70.00th=[ 309], 80.00th=[ 334], 90.00th=[ 372], 95.00th=[ 401], | 99.00th=[ 468], 99.50th=[ 481], 99.90th=[ 550], 99.95th=[ 575], | 99.99th=[ 575] bw ( KiB/s): min= 128, max= 426, per=25.03%, avg=226.56, stdev=49.60, samples=89 iops : min= 32, max= 106, avg=56.53, stdev=12.39, samples=89 lat (msec) : 50=0.04%, 100=0.16%, 250=31.84%, 500=67.73%, 750=0.23% cpu : usr=0.12%, sys=1.15%, ctx=2945, 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=905KiB/s (927kB/s), 226KiB/s-227KiB/s (232kB/s-232kB/s), io=40.0MiB (41.9MB), run=45108-45241msec 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=147215: Sat Jul 18 16:32:11 2026 read: IOPS=44, BW=178KiB/s (182kB/s)(5048KiB/28384msec) slat (usec): min=57, max=10589, avg=3579.42, stdev=1274.42 clat (msec): min=8, max=228, avg=110.43, stdev=27.11 lat (msec): min=8, max=232, avg=114.01, stdev=27.53 clat percentiles (msec): | 1.00th=[ 22], 5.00th=[ 74], 10.00th=[ 83], 20.00th=[ 90], | 30.00th=[ 96], 40.00th=[ 103], 50.00th=[ 108], 60.00th=[ 115], | 70.00th=[ 123], 80.00th=[ 130], 90.00th=[ 144], 95.00th=[ 157], | 99.00th=[ 190], 99.50th=[ 197], 99.90th=[ 207], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 79, max= 288, per=25.30%, avg=177.63, stdev=49.65, samples=56 iops : min= 19, max= 72, avg=44.29, stdev=12.48, samples=56 write: IOPS=45, BW=183KiB/s (187kB/s)(5192KiB/28384msec); 0 zone resets slat (usec): min=58, max=2156, avg=253.36, stdev=165.04 clat (msec): min=47, max=490, avg=238.52, stdev=67.33 lat (msec): min=47, max=491, avg=238.77, stdev=67.34 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 140], 10.00th=[ 159], 20.00th=[ 186], | 30.00th=[ 205], 40.00th=[ 218], 50.00th=[ 234], 60.00th=[ 249], | 70.00th=[ 264], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 368], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 119, max= 248, per=24.91%, avg=182.09, stdev=29.89, samples=56 iops : min= 29, max= 62, avg=45.39, stdev= 7.50, samples=56 lat (msec) : 10=0.12%, 20=0.35%, 50=0.27%, 100=17.46%, 250=62.03% lat (msec) : 500=19.77% cpu : usr=0.20%, sys=2.12%, ctx=4890, 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=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=147216: Sat Jul 18 16:32:11 2026 read: IOPS=43, BW=174KiB/s (178kB/s)(4976KiB/28552msec) slat (usec): min=1358, max=10325, avg=3530.68, stdev=1134.17 clat (msec): min=3, max=220, avg=110.55, stdev=26.28 lat (msec): min=5, max=223, avg=114.09, stdev=26.53 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 75], 10.00th=[ 82], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 102], 50.00th=[ 108], 60.00th=[ 115], | 70.00th=[ 123], 80.00th=[ 130], 90.00th=[ 146], 95.00th=[ 157], | 99.00th=[ 186], 99.50th=[ 194], 99.90th=[ 215], 99.95th=[ 222], | 99.99th=[ 222] bw ( KiB/s): min= 55, max= 312, per=24.68%, avg=173.25, stdev=50.95, samples=56 iops : min= 13, max= 78, avg=43.18, stdev=12.82, samples=56 write: IOPS=46, BW=184KiB/s (189kB/s)(5264KiB/28552msec); 0 zone resets slat (usec): min=53, max=2005, avg=247.38, stdev=162.68 clat (msec): min=60, max=524, avg=238.40, stdev=67.08 lat (msec): min=60, max=524, avg=238.65, stdev=67.09 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 142], 10.00th=[ 159], 20.00th=[ 186], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 232], 60.00th=[ 247], | 70.00th=[ 259], 80.00th=[ 288], 90.00th=[ 326], 95.00th=[ 368], | 99.00th=[ 435], 99.50th=[ 464], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 96, max= 272, per=24.87%, avg=181.77, stdev=34.19, samples=56 iops : min= 24, max= 68, avg=45.32, stdev= 8.54, samples=56 lat (msec) : 4=0.04%, 10=0.04%, 20=0.12%, 50=0.16%, 100=17.19% lat (msec) : 250=63.05%, 500=19.34%, 750=0.08% cpu : usr=0.23%, sys=2.06%, ctx=4878, 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=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=147217: Sat Jul 18 16:32:11 2026 read: IOPS=43, BW=175KiB/s (179kB/s)(4984KiB/28523msec) slat (usec): min=1344, max=10449, avg=3608.79, stdev=1204.60 clat (msec): min=12, max=222, avg=112.46, stdev=26.74 lat (msec): min=14, max=225, avg=116.08, stdev=27.04 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 78], 10.00th=[ 85], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 104], 50.00th=[ 110], 60.00th=[ 117], | 70.00th=[ 125], 80.00th=[ 133], 90.00th=[ 148], 95.00th=[ 163], | 99.00th=[ 188], 99.50th=[ 194], 99.90th=[ 211], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 88, max= 304, per=24.81%, avg=174.16, stdev=49.27, samples=56 iops : min= 22, max= 76, avg=43.41, stdev=12.32, samples=56 write: IOPS=46, BW=184KiB/s (189kB/s)(5256KiB/28523msec); 0 zone resets slat (usec): min=57, max=9431, avg=265.92, stdev=304.67 clat (msec): min=88, max=495, avg=236.28, stdev=67.20 lat (msec): min=88, max=495, avg=236.55, stdev=67.21 clat percentiles (msec): | 1.00th=[ 111], 5.00th=[ 140], 10.00th=[ 155], 20.00th=[ 182], | 30.00th=[ 199], 40.00th=[ 213], 50.00th=[ 230], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 430], 99.50th=[ 468], 99.90th=[ 493], 99.95th=[ 498], | 99.99th=[ 498] bw ( KiB/s): min= 88, max= 264, per=24.82%, avg=181.45, stdev=36.77, samples=56 iops : min= 22, max= 66, avg=45.23, stdev= 9.26, samples=56 lat (msec) : 20=0.08%, 50=0.27%, 100=16.41%, 250=64.30%, 500=18.95% cpu : usr=0.26%, sys=2.09%, ctx=4962, 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=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=147218: Sat Jul 18 16:32:11 2026 read: IOPS=44, BW=179KiB/s (183kB/s)(5060KiB/28260msec) slat (usec): min=1245, max=9633, avg=3606.72, stdev=1199.22 clat (msec): min=4, max=216, avg=110.98, stdev=26.46 lat (msec): min=7, max=222, avg=114.59, stdev=26.75 clat percentiles (msec): | 1.00th=[ 53], 5.00th=[ 75], 10.00th=[ 82], 20.00th=[ 91], | 30.00th=[ 97], 40.00th=[ 104], 50.00th=[ 109], 60.00th=[ 115], | 70.00th=[ 123], 80.00th=[ 129], 90.00th=[ 146], 95.00th=[ 157], | 99.00th=[ 186], 99.50th=[ 197], 99.90th=[ 209], 99.95th=[ 218], | 99.99th=[ 218] bw ( KiB/s): min= 96, max= 312, per=25.53%, avg=179.20, stdev=44.41, samples=56 iops : min= 24, max= 78, avg=44.68, stdev=11.15, samples=56 write: IOPS=45, BW=183KiB/s (188kB/s)(5180KiB/28260msec); 0 zone resets slat (usec): min=52, max=3405, avg=248.82, stdev=162.66 clat (msec): min=59, max=493, avg=236.38, stdev=66.41 lat (msec): min=59, max=493, avg=236.63, stdev=66.41 clat percentiles (msec): | 1.00th=[ 110], 5.00th=[ 142], 10.00th=[ 157], 20.00th=[ 182], | 30.00th=[ 203], 40.00th=[ 218], 50.00th=[ 232], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 279], 90.00th=[ 326], 95.00th=[ 368], | 99.00th=[ 430], 99.50th=[ 456], 99.90th=[ 485], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 104, max= 264, per=24.96%, avg=182.43, stdev=36.59, samples=56 iops : min= 26, max= 66, avg=45.48, stdev= 9.20, samples=56 lat (msec) : 10=0.04%, 20=0.16%, 50=0.27%, 100=16.91%, 250=64.02% lat (msec) : 500=18.59% cpu : usr=0.23%, sys=2.11%, ctx=4904, majf=0, minf=15 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=703KiB/s (720kB/s), 174KiB/s-179KiB/s (178kB/s-183kB/s), io=19.6MiB (20.5MB), run=28260-28552msec WRITE: bw=732KiB/s (749kB/s), 183KiB/s-184KiB/s (187kB/s-189kB/s), io=20.4MiB (21.4MB), run=28260-28552msec 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=147226: Sat Jul 18 16:32:15 2026 read: IOPS=6, BW=255MiB/s (267MB/s)(40.0MiB/157msec) slat (nsec): min=15197k, max=15197k, avg=15197288.00, stdev= 0.00 clat (nsec): min=133811k, max=133811k, avg=133810762.00, stdev= 0.00 lat (nsec): min=149012k, max=149012k, avg=149012455.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 134], 5.00th=[ 134], 10.00th=[ 134], 20.00th=[ 134], | 30.00th=[ 134], 40.00th=[ 134], 50.00th=[ 134], 60.00th=[ 134], | 70.00th=[ 134], 80.00th=[ 134], 90.00th=[ 134], 95.00th=[ 134], | 99.00th=[ 134], 99.50th=[ 134], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=8.33%, ctx=42, 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=255MiB/s (267MB/s), 255MiB/s-255MiB/s (267MB/s-267MB/s), io=40.0MiB (41.9MB), run=157-157msec 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