== sanity test 398c: run fio to test AIO ================= 21:11:19 (1789089079) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.459196 s, 91.3 MB/s osc.lustre-OST0000-osc-ffff978438a50000.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=180321: Thu Sep 10 21:11:56 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26800msec); 0 zone resets slat (usec): min=50, max=9297, avg=254.33, stdev=615.76 clat (msec): min=13, max=275, avg=166.58, stdev=39.70 lat (msec): min=13, max=275, avg=166.84, stdev=39.74 clat percentiles (msec): | 1.00th=[ 88], 5.00th=[ 108], 10.00th=[ 124], 20.00th=[ 134], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 171], | 70.00th=[ 186], 80.00th=[ 201], 90.00th=[ 226], 95.00th=[ 241], | 99.00th=[ 262], 99.50th=[ 275], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 256, max= 606, per=24.89%, avg=380.36, stdev=78.43, samples=53 iops : min= 64, max= 151, avg=94.74, stdev=19.64, samples=53 lat (msec) : 20=0.08%, 50=0.12%, 100=3.05%, 250=94.53%, 500=2.23% cpu : usr=0.13%, sys=1.15%, ctx=2265, 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=180322: Thu Sep 10 21:11:56 2026 write: IOPS=95, BW=383KiB/s (393kB/s)(10.0MiB/26714msec); 0 zone resets slat (usec): min=51, max=12778, avg=290.99, stdev=711.82 clat (msec): min=14, max=278, avg=166.04, stdev=40.07 lat (msec): min=14, max=278, avg=166.33, stdev=40.06 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 107], 10.00th=[ 121], 20.00th=[ 132], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 199], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 262], 99.50th=[ 264], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 255, max= 569, per=24.93%, avg=380.89, stdev=67.33, samples=53 iops : min= 63, max= 142, avg=94.85, stdev=16.82, samples=53 lat (msec) : 20=0.12%, 50=0.16%, 100=3.40%, 250=92.54%, 500=3.79% cpu : usr=0.18%, sys=1.24%, ctx=3134, 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=180323: Thu Sep 10 21:11:56 2026 write: IOPS=96, BW=386KiB/s (395kB/s)(10.0MiB/26558msec); 0 zone resets slat (usec): min=50, max=9486, avg=252.31, stdev=591.75 clat (msec): min=31, max=279, avg=165.61, stdev=41.23 lat (msec): min=31, max=279, avg=165.87, stdev=41.22 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 104], 10.00th=[ 122], 20.00th=[ 132], | 30.00th=[ 142], 40.00th=[ 153], 50.00th=[ 165], 60.00th=[ 174], | 70.00th=[ 184], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 262], 99.50th=[ 264], 99.90th=[ 271], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 253, max= 673, per=25.13%, avg=383.94, stdev=82.81, samples=52 iops : min= 63, max= 168, avg=95.63, stdev=20.67, samples=52 lat (msec) : 50=0.12%, 100=3.75%, 250=92.73%, 500=3.40% cpu : usr=0.18%, sys=1.14%, ctx=2322, 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=180324: Thu Sep 10 21:11:56 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26788msec); 0 zone resets slat (usec): min=53, max=16408, avg=305.46, stdev=732.42 clat (msec): min=18, max=297, avg=166.33, stdev=39.10 lat (msec): min=19, max=298, avg=166.64, stdev=39.13 clat percentiles (msec): | 1.00th=[ 86], 5.00th=[ 110], 10.00th=[ 122], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 155], 50.00th=[ 163], 60.00th=[ 171], | 70.00th=[ 182], 80.00th=[ 201], 90.00th=[ 222], 95.00th=[ 241], | 99.00th=[ 264], 99.50th=[ 268], 99.90th=[ 275], 99.95th=[ 275], | 99.99th=[ 296] bw ( KiB/s): min= 255, max= 550, per=24.95%, avg=381.19, stdev=68.93, samples=53 iops : min= 63, max= 137, avg=94.91, stdev=17.19, samples=53 lat (msec) : 20=0.08%, 50=0.04%, 100=2.62%, 250=93.75%, 500=3.52% cpu : usr=0.16%, sys=1.34%, ctx=2999, 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 Run status group 0 (all jobs): WRITE: bw=1528KiB/s (1565kB/s), 382KiB/s-386KiB/s (391kB/s-395kB/s), io=40.0MiB (41.9MB), run=26558-26800msec 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=180338: Thu Sep 10 21:12:35 2026 read: IOPS=40, BW=163KiB/s (167kB/s)(5048KiB/31039msec) slat (usec): min=57, max=54830, avg=13722.62, stdev=7609.55 clat (msec): min=37, max=437, avg=183.87, stdev=45.09 lat (msec): min=62, max=463, avg=197.60, stdev=46.61 clat percentiles (msec): | 1.00th=[ 99], 5.00th=[ 120], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 161], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 203], 80.00th=[ 218], 90.00th=[ 241], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 342], 99.90th=[ 435], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 95, max= 237, per=25.17%, avg=162.08, stdev=37.00, samples=61 iops : min= 23, max= 59, avg=40.02, stdev= 9.32, samples=61 write: IOPS=41, BW=167KiB/s (171kB/s)(5192KiB/31039msec); 0 zone resets slat (usec): min=50, max=17412, avg=251.58, stdev=730.63 clat (msec): min=90, max=414, avg=188.01, stdev=41.23 lat (msec): min=90, max=414, avg=188.27, stdev=41.25 clat percentiles (msec): | 1.00th=[ 115], 5.00th=[ 132], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 205], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 317], 99.90th=[ 414], 99.95th=[ 414], | 99.99th=[ 414] bw ( KiB/s): min= 79, max= 243, per=24.93%, avg=167.05, stdev=34.87, samples=61 iops : min= 19, max= 60, avg=41.25, stdev= 8.83, samples=61 lat (msec) : 50=0.04%, 100=0.62%, 250=92.19%, 500=7.15% cpu : usr=0.20%, sys=1.86%, ctx=4138, 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=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=180339: Thu Sep 10 21:12:35 2026 read: IOPS=40, BW=162KiB/s (165kB/s)(4976KiB/30811msec) slat (usec): min=49, max=60905, avg=13602.32, stdev=7700.07 clat (msec): min=63, max=438, avg=183.68, stdev=46.49 lat (msec): min=72, max=458, avg=197.29, stdev=48.40 clat percentiles (msec): | 1.00th=[ 101], 5.00th=[ 117], 10.00th=[ 131], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 167], 50.00th=[ 178], 60.00th=[ 190], | 70.00th=[ 203], 80.00th=[ 220], 90.00th=[ 243], 95.00th=[ 268], | 99.00th=[ 309], 99.50th=[ 355], 99.90th=[ 409], 99.95th=[ 439], | 99.99th=[ 439] bw ( KiB/s): min= 72, max= 244, per=24.87%, avg=160.15, stdev=35.57, samples=61 iops : min= 18, max= 61, avg=39.51, stdev= 8.94, samples=61 write: IOPS=42, BW=171KiB/s (175kB/s)(5264KiB/30811msec); 0 zone resets slat (usec): min=50, max=16780, avg=283.82, stdev=814.05 clat (msec): min=26, max=373, avg=187.21, stdev=41.88 lat (msec): min=27, max=373, avg=187.50, stdev=41.90 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 125], 10.00th=[ 136], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 262], | 99.00th=[ 296], 99.50th=[ 313], 99.90th=[ 355], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 63, max= 256, per=25.34%, avg=169.75, stdev=40.17, samples=61 iops : min= 15, max= 64, avg=41.90, stdev=10.14, samples=61 lat (msec) : 50=0.08%, 100=0.66%, 250=91.45%, 500=7.81% cpu : usr=0.18%, sys=1.68%, ctx=3834, 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=180340: Thu Sep 10 21:12:35 2026 read: IOPS=40, BW=160KiB/s (164kB/s)(4984KiB/31131msec) slat (usec): min=96, max=61015, avg=14214.73, stdev=8160.80 clat (msec): min=80, max=422, avg=186.80, stdev=45.02 lat (msec): min=98, max=434, avg=201.02, stdev=46.78 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 122], 10.00th=[ 136], 20.00th=[ 150], | 30.00th=[ 161], 40.00th=[ 174], 50.00th=[ 184], 60.00th=[ 194], | 70.00th=[ 207], 80.00th=[ 220], 90.00th=[ 239], 95.00th=[ 257], | 99.00th=[ 338], 99.50th=[ 380], 99.90th=[ 414], 99.95th=[ 422], | 99.99th=[ 422] bw ( KiB/s): min= 87, max= 227, per=24.76%, avg=159.43, stdev=35.40, samples=61 iops : min= 21, max= 56, avg=39.34, stdev= 8.90, samples=61 write: IOPS=42, BW=169KiB/s (173kB/s)(5256KiB/31131msec); 0 zone resets slat (usec): min=58, max=17987, avg=304.71, stdev=984.39 clat (msec): min=23, max=425, avg=186.05, stdev=45.06 lat (msec): min=23, max=425, avg=186.36, stdev=45.04 clat percentiles (msec): | 1.00th=[ 106], 5.00th=[ 126], 10.00th=[ 138], 20.00th=[ 153], | 30.00th=[ 163], 40.00th=[ 171], 50.00th=[ 182], 60.00th=[ 192], | 70.00th=[ 201], 80.00th=[ 215], 90.00th=[ 236], 95.00th=[ 262], | 99.00th=[ 347], 99.50th=[ 393], 99.90th=[ 422], 99.95th=[ 426], | 99.99th=[ 426] bw ( KiB/s): min= 79, max= 275, per=25.04%, avg=167.74, stdev=40.16, samples=61 iops : min= 19, max= 68, avg=41.39, stdev=10.10, samples=61 lat (msec) : 50=0.04%, 100=0.59%, 250=92.93%, 500=6.45% cpu : usr=0.25%, sys=1.57%, ctx=4316, 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=180341: Thu Sep 10 21:12:35 2026 read: IOPS=40, BW=162KiB/s (166kB/s)(5060KiB/31152msec) slat (usec): min=2620, max=64443, avg=13714.78, stdev=7607.26 clat (msec): min=30, max=368, avg=183.33, stdev=45.11 lat (msec): min=44, max=388, avg=197.05, stdev=46.43 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 120], 10.00th=[ 130], 20.00th=[ 146], | 30.00th=[ 159], 40.00th=[ 169], 50.00th=[ 180], 60.00th=[ 192], | 70.00th=[ 205], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 259], | 99.00th=[ 305], 99.50th=[ 326], 99.90th=[ 363], 99.95th=[ 368], | 99.99th=[ 368] bw ( KiB/s): min= 79, max= 228, per=25.03%, avg=161.20, stdev=35.27, samples=61 iops : min= 19, max= 57, avg=39.80, stdev= 8.89, samples=61 write: IOPS=41, BW=166KiB/s (170kB/s)(5180KiB/31152msec); 0 zone resets slat (usec): min=54, max=10743, avg=255.30, stdev=606.00 clat (msec): min=56, max=397, avg=189.01, stdev=42.57 lat (msec): min=56, max=397, avg=189.27, stdev=42.54 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 130], 10.00th=[ 140], 20.00th=[ 153], | 30.00th=[ 165], 40.00th=[ 176], 50.00th=[ 186], 60.00th=[ 197], | 70.00th=[ 209], 80.00th=[ 222], 90.00th=[ 243], 95.00th=[ 266], | 99.00th=[ 309], 99.50th=[ 321], 99.90th=[ 393], 99.95th=[ 397], | 99.99th=[ 397] bw ( KiB/s): min= 102, max= 261, per=24.62%, avg=164.97, stdev=35.54, samples=61 iops : min= 25, max= 65, avg=40.72, stdev= 8.96, samples=61 lat (msec) : 50=0.23%, 100=0.82%, 250=91.33%, 500=7.62% cpu : usr=0.22%, sys=1.79%, ctx=4083, 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=644KiB/s (660kB/s), 160KiB/s-163KiB/s (164kB/s-167kB/s), io=19.6MiB (20.5MB), run=30811-31152msec WRITE: bw=671KiB/s (687kB/s), 166KiB/s-171KiB/s (170kB/s-175kB/s), io=20.4MiB (21.4MB), run=30811-31152msec 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=180351: Thu Sep 10 21:12:45 2026 read: IOPS=1, BW=74.1MiB/s (77.7MB/s)(40.0MiB/540msec) slat (nsec): min=31147k, max=31147k, avg=31147481.00, stdev= 0.00 clat (nsec): min=473927k, max=473927k, avg=473926555.00, stdev= 0.00 lat (nsec): min=505078k, max=505078k, avg=505078048.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 472], 5.00th=[ 472], 10.00th=[ 472], 20.00th=[ 472], | 30.00th=[ 472], 40.00th=[ 472], 50.00th=[ 472], 60.00th=[ 472], | 70.00th=[ 472], 80.00th=[ 472], 90.00th=[ 472], 95.00th=[ 472], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 472] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.04%, ctx=9, 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=74.1MiB/s (77.7MB/s), 74.1MiB/s-74.1MiB/s (77.7MB/s-77.7MB/s), io=40.0MiB (41.9MB), run=540-540msec 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