== sanity test 398c: run fio to test AIO ================= 17:25:05 (1786483505) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.166039 s, 253 MB/s osc.lustre-OST0000-osc-ffff9d4a65cee000.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=146844: Tue Aug 11 17:25:59 2026 write: IOPS=51, BW=207KiB/s (212kB/s)(10.0MiB/49511msec); 0 zone resets slat (usec): min=35, max=5044, avg=219.14, stdev=236.68 clat (msec): min=109, max=651, avg=308.84, stdev=88.14 lat (msec): min=110, max=652, avg=309.06, stdev=88.15 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 188], 10.00th=[ 203], 20.00th=[ 232], | 30.00th=[ 259], 40.00th=[ 279], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 430], 95.00th=[ 472], | 99.00th=[ 575], 99.50th=[ 592], 99.90th=[ 642], 99.95th=[ 642], | 99.99th=[ 651] bw ( KiB/s): min= 87, max= 384, per=24.98%, avg=206.36, stdev=55.35, samples=98 iops : min= 21, max= 96, avg=51.37, stdev=13.89, samples=98 lat (msec) : 250=26.60%, 500=70.12%, 750=3.28% cpu : usr=0.09%, sys=0.83%, ctx=2853, 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=146845: Tue Aug 11 17:25:59 2026 write: IOPS=51, BW=207KiB/s (212kB/s)(10.0MiB/49534msec); 0 zone resets slat (usec): min=34, max=6395, avg=217.83, stdev=255.65 clat (msec): min=111, max=651, avg=308.99, stdev=86.86 lat (msec): min=111, max=651, avg=309.21, stdev=86.88 clat percentiles (msec): | 1.00th=[ 157], 5.00th=[ 188], 10.00th=[ 205], 20.00th=[ 230], | 30.00th=[ 259], 40.00th=[ 284], 50.00th=[ 300], 60.00th=[ 317], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 426], 95.00th=[ 468], | 99.00th=[ 567], 99.50th=[ 592], 99.90th=[ 634], 99.95th=[ 642], | 99.99th=[ 651] bw ( KiB/s): min= 103, max= 368, per=24.98%, avg=206.36, stdev=55.03, samples=98 iops : min= 25, max= 92, avg=51.37, stdev=13.79, samples=98 lat (msec) : 250=25.51%, 500=71.48%, 750=3.01% cpu : usr=0.10%, sys=0.79%, ctx=2994, 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=146846: Tue Aug 11 17:25:59 2026 write: IOPS=51, BW=207KiB/s (212kB/s)(10.0MiB/49422msec); 0 zone resets slat (usec): min=40, max=10271, avg=229.85, stdev=320.78 clat (msec): min=46, max=644, avg=308.46, stdev=89.90 lat (msec): min=47, max=645, avg=308.69, stdev=89.92 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 184], 10.00th=[ 207], 20.00th=[ 230], | 30.00th=[ 259], 40.00th=[ 279], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 430], 95.00th=[ 472], | 99.00th=[ 575], 99.50th=[ 600], 99.90th=[ 625], 99.95th=[ 634], | 99.99th=[ 642] bw ( KiB/s): min= 95, max= 412, per=24.99%, avg=206.42, stdev=57.53, samples=98 iops : min= 23, max= 103, avg=51.39, stdev=14.43, samples=98 lat (msec) : 50=0.04%, 100=0.35%, 250=26.60%, 500=69.34%, 750=3.67% cpu : usr=0.10%, sys=0.82%, ctx=3116, 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=146847: Tue Aug 11 17:25:59 2026 write: IOPS=51, BW=207KiB/s (212kB/s)(10.0MiB/49492msec); 0 zone resets slat (usec): min=40, max=4466, avg=219.19, stdev=243.73 clat (msec): min=104, max=646, avg=308.69, stdev=89.14 lat (msec): min=105, max=646, avg=308.91, stdev=89.16 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 186], 10.00th=[ 205], 20.00th=[ 230], | 30.00th=[ 257], 40.00th=[ 284], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 430], 95.00th=[ 477], | 99.00th=[ 558], 99.50th=[ 592], 99.90th=[ 634], 99.95th=[ 651], | 99.99th=[ 651] bw ( KiB/s): min= 95, max= 384, per=25.01%, avg=206.57, stdev=56.36, samples=98 iops : min= 23, max= 96, avg=51.42, stdev=14.12, samples=98 lat (msec) : 250=27.81%, 500=68.87%, 750=3.32% cpu : usr=0.10%, sys=0.79%, ctx=3042, 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=827KiB/s (847kB/s), 207KiB/s-207KiB/s (212kB/s-212kB/s), io=40.0MiB (41.9MB), run=49422-49534msec 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=146865: Tue Aug 11 17:26:37 2026 read: IOPS=36, BW=146KiB/s (149kB/s)(5048KiB/34650msec) slat (usec): min=1430, max=18294, avg=4475.79, stdev=2146.39 clat (msec): min=3, max=257, avg=134.67, stdev=34.33 lat (msec): min=7, max=263, avg=139.15, stdev=34.78 clat percentiles (msec): | 1.00th=[ 65], 5.00th=[ 86], 10.00th=[ 93], 20.00th=[ 107], | 30.00th=[ 115], 40.00th=[ 125], 50.00th=[ 132], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 180], 95.00th=[ 199], | 99.00th=[ 228], 99.50th=[ 243], 99.90th=[ 253], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 79, max= 296, per=25.08%, avg=144.96, stdev=43.35, samples=68 iops : min= 19, max= 74, avg=35.99, stdev=10.85, samples=68 write: IOPS=37, BW=150KiB/s (153kB/s)(5192KiB/34650msec); 0 zone resets slat (usec): min=39, max=3950, avg=215.95, stdev=254.69 clat (msec): min=50, max=534, avg=290.57, stdev=79.72 lat (msec): min=50, max=534, avg=290.78, stdev=79.73 clat percentiles (msec): | 1.00th=[ 129], 5.00th=[ 163], 10.00th=[ 188], 20.00th=[ 222], | 30.00th=[ 243], 40.00th=[ 268], 50.00th=[ 288], 60.00th=[ 313], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 401], 95.00th=[ 430], | 99.00th=[ 468], 99.50th=[ 485], 99.90th=[ 502], 99.95th=[ 535], | 99.99th=[ 535] bw ( KiB/s): min= 71, max= 240, per=24.77%, avg=149.09, stdev=37.34, samples=68 iops : min= 17, max= 60, avg=37.03, stdev= 9.37, samples=68 lat (msec) : 4=0.04%, 20=0.12%, 50=0.04%, 100=6.60%, 250=59.06% lat (msec) : 500=34.06%, 750=0.08% cpu : usr=0.16%, sys=1.39%, ctx=5150, 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=146866: Tue Aug 11 17:26:37 2026 read: IOPS=35, BW=143KiB/s (147kB/s)(4976KiB/34677msec) slat (usec): min=1351, max=18703, avg=4424.63, stdev=2086.44 clat (msec): min=7, max=256, avg=133.98, stdev=33.54 lat (msec): min=12, max=262, avg=138.41, stdev=33.97 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 87], 10.00th=[ 94], 20.00th=[ 108], | 30.00th=[ 115], 40.00th=[ 125], 50.00th=[ 133], 60.00th=[ 140], | 70.00th=[ 150], 80.00th=[ 161], 90.00th=[ 178], 95.00th=[ 192], | 99.00th=[ 230], 99.50th=[ 236], 99.90th=[ 255], 99.95th=[ 257], | 99.99th=[ 257] bw ( KiB/s): min= 48, max= 280, per=24.68%, avg=142.65, stdev=47.09, samples=68 iops : min= 12, max= 70, avg=35.41, stdev=11.79, samples=68 write: IOPS=37, BW=152KiB/s (155kB/s)(5264KiB/34677msec); 0 zone resets slat (usec): min=40, max=3291, avg=215.33, stdev=233.74 clat (msec): min=87, max=528, avg=289.76, stdev=81.89 lat (msec): min=87, max=528, avg=289.98, stdev=81.91 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 157], 10.00th=[ 184], 20.00th=[ 220], | 30.00th=[ 247], 40.00th=[ 266], 50.00th=[ 284], 60.00th=[ 309], | 70.00th=[ 334], 80.00th=[ 363], 90.00th=[ 401], 95.00th=[ 430], | 99.00th=[ 472], 99.50th=[ 493], 99.90th=[ 518], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 95, max= 208, per=25.04%, avg=150.72, stdev=33.55, samples=68 iops : min= 23, max= 52, avg=37.43, stdev= 8.42, samples=68 lat (msec) : 10=0.08%, 20=0.08%, 50=0.20%, 100=6.37%, 250=58.59% lat (msec) : 500=34.53%, 750=0.16% cpu : usr=0.15%, sys=1.38%, ctx=5117, 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=146867: Tue Aug 11 17:26:37 2026 read: IOPS=35, BW=144KiB/s (147kB/s)(4984KiB/34676msec) slat (usec): min=1378, max=16867, avg=4438.08, stdev=2121.68 clat (msec): min=6, max=266, avg=134.08, stdev=33.43 lat (msec): min=9, max=269, avg=138.52, stdev=33.85 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 87], 10.00th=[ 95], 20.00th=[ 108], | 30.00th=[ 115], 40.00th=[ 125], 50.00th=[ 133], 60.00th=[ 142], | 70.00th=[ 150], 80.00th=[ 159], 90.00th=[ 178], 95.00th=[ 192], | 99.00th=[ 222], 99.50th=[ 236], 99.90th=[ 255], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 64, max= 280, per=24.84%, avg=143.60, stdev=47.27, samples=68 iops : min= 16, max= 70, avg=35.65, stdev=11.86, samples=68 write: IOPS=37, BW=152KiB/s (155kB/s)(5256KiB/34676msec); 0 zone resets slat (usec): min=54, max=5046, avg=226.23, stdev=267.51 clat (msec): min=95, max=514, avg=289.70, stdev=80.03 lat (msec): min=95, max=514, avg=289.93, stdev=80.05 clat percentiles (msec): | 1.00th=[ 125], 5.00th=[ 163], 10.00th=[ 188], 20.00th=[ 220], | 30.00th=[ 243], 40.00th=[ 266], 50.00th=[ 288], 60.00th=[ 309], | 70.00th=[ 334], 80.00th=[ 363], 90.00th=[ 397], 95.00th=[ 426], | 99.00th=[ 472], 99.50th=[ 493], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] bw ( KiB/s): min= 88, max= 240, per=24.90%, avg=149.88, stdev=34.61, samples=68 iops : min= 22, max= 60, avg=37.22, stdev= 8.67, samples=68 lat (msec) : 10=0.08%, 20=0.12%, 50=0.23%, 100=6.64%, 250=58.16% lat (msec) : 500=34.53%, 750=0.23% cpu : usr=0.19%, sys=1.38%, ctx=5094, 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=146868: Tue Aug 11 17:26:37 2026 read: IOPS=36, BW=147KiB/s (150kB/s)(5060KiB/34526msec) slat (usec): min=103, max=17430, avg=4369.84, stdev=2103.54 clat (msec): min=6, max=327, avg=135.18, stdev=35.99 lat (msec): min=10, max=332, avg=139.56, stdev=36.35 clat percentiles (msec): | 1.00th=[ 29], 5.00th=[ 87], 10.00th=[ 96], 20.00th=[ 107], | 30.00th=[ 115], 40.00th=[ 125], 50.00th=[ 133], 60.00th=[ 144], | 70.00th=[ 153], 80.00th=[ 163], 90.00th=[ 180], 95.00th=[ 194], | 99.00th=[ 245], 99.50th=[ 257], 99.90th=[ 305], 99.95th=[ 330], | 99.99th=[ 330] bw ( KiB/s): min= 48, max= 288, per=25.43%, avg=147.00, stdev=44.10, samples=68 iops : min= 12, max= 72, avg=36.50, stdev=11.01, samples=68 write: IOPS=37, BW=150KiB/s (154kB/s)(5180KiB/34526msec); 0 zone resets slat (usec): min=57, max=5504, avg=212.80, stdev=260.95 clat (msec): min=43, max=523, avg=289.58, stdev=81.40 lat (msec): min=45, max=524, avg=289.80, stdev=81.40 clat percentiles (msec): | 1.00th=[ 120], 5.00th=[ 161], 10.00th=[ 190], 20.00th=[ 220], | 30.00th=[ 243], 40.00th=[ 266], 50.00th=[ 288], 60.00th=[ 309], | 70.00th=[ 334], 80.00th=[ 359], 90.00th=[ 397], 95.00th=[ 426], | 99.00th=[ 485], 99.50th=[ 506], 99.90th=[ 518], 99.95th=[ 523], | 99.99th=[ 523] bw ( KiB/s): min= 80, max= 232, per=24.83%, avg=149.50, stdev=36.76, samples=68 iops : min= 20, max= 58, avg=37.13, stdev= 9.24, samples=68 lat (msec) : 10=0.08%, 20=0.20%, 50=0.39%, 100=6.56%, 250=58.32% lat (msec) : 500=34.14%, 750=0.31% cpu : usr=0.18%, sys=1.38%, ctx=5094, 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=579KiB/s (593kB/s), 143KiB/s-147KiB/s (147kB/s-150kB/s), io=19.6MiB (20.5MB), run=34526-34677msec WRITE: bw=602KiB/s (617kB/s), 150KiB/s-152KiB/s (153kB/s-155kB/s), io=20.4MiB (21.4MB), run=34526-34677msec 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=146878: Tue Aug 11 17:26:41 2026 read: IOPS=5, BW=206MiB/s (216MB/s)(40.0MiB/194msec) slat (nsec): min=22853k, max=22853k, avg=22853057.00, stdev= 0.00 clat (nsec): min=161060k, max=161060k, avg=161060235.00, stdev= 0.00 lat (nsec): min=183917k, max=183917k, avg=183916684.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 161], 10.00th=[ 161], 20.00th=[ 161], | 30.00th=[ 161], 40.00th=[ 161], 50.00th=[ 161], 60.00th=[ 161], | 70.00th=[ 161], 80.00th=[ 161], 90.00th=[ 161], 95.00th=[ 161], | 99.00th=[ 161], 99.50th=[ 161], 99.90th=[ 161], 99.95th=[ 161], | 99.99th=[ 161] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=6.22%, ctx=42, 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=206MiB/s (216MB/s), 206MiB/s-206MiB/s (216MB/s-216MB/s), io=40.0MiB (41.9MB), run=194-194msec 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