== sanity test 398c: run fio to test AIO ================= 20:16:35 (1788567395) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.57601 s, 72.8 MB/s osc.lustre-OST0000-osc-ffff8fc486984000.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=179276: Fri Sep 4 20:17:29 2026 write: IOPS=60, BW=243KiB/s (249kB/s)(10.0MiB/42181msec); 0 zone resets slat (usec): min=27, max=18616, avg=323.61, stdev=1272.26 clat (msec): min=35, max=591, avg=263.05, stdev=81.16 lat (msec): min=36, max=591, avg=263.38, stdev=81.10 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 142], 10.00th=[ 163], 20.00th=[ 194], | 30.00th=[ 213], 40.00th=[ 234], 50.00th=[ 255], 60.00th=[ 275], | 70.00th=[ 305], 80.00th=[ 330], 90.00th=[ 376], 95.00th=[ 418], | 99.00th=[ 472], 99.50th=[ 472], 99.90th=[ 523], 99.95th=[ 523], | 99.99th=[ 592] bw ( KiB/s): min= 123, max= 496, per=25.03%, avg=242.55, stdev=72.01, samples=83 iops : min= 30, max= 124, avg=60.16, stdev=18.06, samples=83 lat (msec) : 50=0.12%, 100=0.20%, 250=46.33%, 500=53.16%, 750=0.20% cpu : usr=0.16%, sys=0.78%, ctx=2427, 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=179277: Fri Sep 4 20:17:29 2026 write: IOPS=60, BW=243KiB/s (248kB/s)(10.0MiB/42226msec); 0 zone resets slat (usec): min=22, max=26506, avg=253.21, stdev=1271.17 clat (msec): min=106, max=683, avg=263.48, stdev=80.87 lat (msec): min=107, max=683, avg=263.74, stdev=80.87 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 153], 10.00th=[ 167], 20.00th=[ 194], | 30.00th=[ 213], 40.00th=[ 232], 50.00th=[ 255], 60.00th=[ 275], | 70.00th=[ 309], 80.00th=[ 334], 90.00th=[ 372], 95.00th=[ 397], | 99.00th=[ 472], 99.50th=[ 489], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 684] bw ( KiB/s): min= 127, max= 512, per=25.06%, avg=242.80, stdev=78.22, samples=83 iops : min= 31, max= 128, avg=60.25, stdev=19.67, samples=83 lat (msec) : 250=46.37%, 500=53.16%, 750=0.47% cpu : usr=0.12%, sys=0.67%, ctx=1337, 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=179278: Fri Sep 4 20:17:29 2026 write: IOPS=60, BW=243KiB/s (249kB/s)(10.0MiB/42180msec); 0 zone resets slat (usec): min=21, max=18821, avg=287.64, stdev=1153.23 clat (msec): min=37, max=627, avg=262.63, stdev=81.88 lat (msec): min=38, max=627, avg=262.91, stdev=81.86 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 148], 10.00th=[ 163], 20.00th=[ 186], | 30.00th=[ 213], 40.00th=[ 234], 50.00th=[ 253], 60.00th=[ 275], | 70.00th=[ 300], 80.00th=[ 326], 90.00th=[ 380], 95.00th=[ 414], | 99.00th=[ 464], 99.50th=[ 472], 99.90th=[ 625], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 135, max= 512, per=25.05%, avg=242.72, stdev=69.33, samples=83 iops : min= 33, max= 128, avg=60.23, stdev=17.41, samples=83 lat (msec) : 50=0.08%, 100=0.23%, 250=48.75%, 500=50.70%, 750=0.23% cpu : usr=0.17%, sys=0.78%, ctx=2000, 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=179279: Fri Sep 4 20:17:29 2026 write: IOPS=60, BW=242KiB/s (248kB/s)(10.0MiB/42242msec); 0 zone resets slat (usec): min=28, max=27766, avg=253.63, stdev=1185.81 clat (msec): min=56, max=491, avg=262.87, stdev=78.76 lat (msec): min=56, max=491, avg=263.13, stdev=78.80 clat percentiles (msec): | 1.00th=[ 122], 5.00th=[ 146], 10.00th=[ 161], 20.00th=[ 190], | 30.00th=[ 211], 40.00th=[ 234], 50.00th=[ 257], 60.00th=[ 279], | 70.00th=[ 309], 80.00th=[ 334], 90.00th=[ 376], 95.00th=[ 405], | 99.00th=[ 439], 99.50th=[ 464], 99.90th=[ 472], 99.95th=[ 493], | 99.99th=[ 493] bw ( KiB/s): min= 123, max= 456, per=24.92%, avg=241.47, stdev=79.59, samples=83 iops : min= 30, max= 114, avg=59.93, stdev=19.99, samples=83 lat (msec) : 100=0.20%, 250=46.48%, 500=53.32% cpu : usr=0.13%, sys=0.74%, ctx=1685, 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=970KiB/s (993kB/s), 242KiB/s-243KiB/s (248kB/s-249kB/s), io=40.0MiB (41.9MB), run=42180-42242msec 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=179296: Fri Sep 4 20:18:20 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(5048KiB/39808msec) slat (usec): min=3138, max=82588, avg=17980.32, stdev=10438.95 clat (msec): min=42, max=407, avg=234.19, stdev=57.89 lat (msec): min=48, max=435, avg=252.18, stdev=60.41 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 150], 10.00th=[ 165], 20.00th=[ 188], | 30.00th=[ 201], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 243], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 338], | 99.00th=[ 376], 99.50th=[ 388], 99.90th=[ 405], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 47, max= 310, per=24.97%, avg=125.87, stdev=38.30, samples=78 iops : min= 11, max= 77, avg=30.97, stdev= 9.62, samples=78 write: IOPS=32, BW=130KiB/s (134kB/s)(5192KiB/39808msec); 0 zone resets slat (usec): min=31, max=15239, avg=266.32, stdev=984.38 clat (msec): min=53, max=441, avg=241.55, stdev=55.73 lat (msec): min=53, max=441, avg=241.82, stdev=55.72 clat percentiles (msec): | 1.00th=[ 104], 5.00th=[ 161], 10.00th=[ 178], 20.00th=[ 197], | 30.00th=[ 213], 40.00th=[ 224], 50.00th=[ 239], 60.00th=[ 253], | 70.00th=[ 268], 80.00th=[ 288], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 384], 99.50th=[ 397], 99.90th=[ 443], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 45, max= 206, per=24.81%, avg=130.01, stdev=35.72, samples=78 iops : min= 11, max= 51, avg=32.01, stdev= 8.97, samples=78 lat (msec) : 50=0.08%, 100=0.98%, 250=59.92%, 500=39.02% cpu : usr=0.26%, sys=1.65%, ctx=4155, 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=179297: Fri Sep 4 20:18:20 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(4976KiB/39704msec) slat (usec): min=3251, max=79219, avg=18089.59, stdev=9934.62 clat (msec): min=27, max=529, avg=235.89, stdev=61.46 lat (msec): min=49, max=576, avg=253.99, stdev=63.56 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 150], 10.00th=[ 167], 20.00th=[ 190], | 30.00th=[ 203], 40.00th=[ 215], 50.00th=[ 230], 60.00th=[ 247], | 70.00th=[ 262], 80.00th=[ 284], 90.00th=[ 317], 95.00th=[ 342], | 99.00th=[ 409], 99.50th=[ 418], 99.90th=[ 510], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 47, max= 254, per=24.77%, avg=124.83, stdev=33.44, samples=78 iops : min= 11, max= 63, avg=30.71, stdev= 8.40, samples=78 write: IOPS=33, BW=133KiB/s (136kB/s)(5264KiB/39704msec); 0 zone resets slat (usec): min=28, max=16282, avg=251.78, stdev=920.58 clat (msec): min=78, max=529, avg=240.06, stdev=55.68 lat (msec): min=78, max=529, avg=240.32, stdev=55.69 clat percentiles (msec): | 1.00th=[ 118], 5.00th=[ 159], 10.00th=[ 176], 20.00th=[ 197], | 30.00th=[ 211], 40.00th=[ 224], 50.00th=[ 236], 60.00th=[ 249], | 70.00th=[ 264], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 397], 99.50th=[ 418], 99.90th=[ 460], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 63, max= 302, per=25.30%, avg=132.55, stdev=39.29, samples=78 iops : min= 15, max= 75, avg=32.64, stdev= 9.88, samples=78 lat (msec) : 50=0.08%, 100=0.98%, 250=60.82%, 500=38.01%, 750=0.12% cpu : usr=0.22%, sys=1.51%, ctx=3866, 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=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=179298: Fri Sep 4 20:18:20 2026 read: IOPS=31, BW=125KiB/s (128kB/s)(4984KiB/39757msec) slat (usec): min=32, max=180987, avg=17898.80, stdev=11400.88 clat (msec): min=42, max=579, avg=236.01, stdev=59.15 lat (msec): min=49, max=623, avg=253.92, stdev=61.50 clat percentiles (msec): | 1.00th=[ 102], 5.00th=[ 153], 10.00th=[ 169], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 245], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 388], 99.50th=[ 435], 99.90th=[ 567], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 47, max= 254, per=24.88%, avg=125.37, stdev=36.82, samples=78 iops : min= 11, max= 63, avg=30.85, stdev= 9.22, samples=78 write: IOPS=33, BW=132KiB/s (135kB/s)(5256KiB/39757msec); 0 zone resets slat (usec): min=23, max=23657, avg=276.53, stdev=1175.50 clat (msec): min=49, max=504, avg=242.04, stdev=59.29 lat (msec): min=49, max=505, avg=242.32, stdev=59.31 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 159], 10.00th=[ 178], 20.00th=[ 199], | 30.00th=[ 213], 40.00th=[ 226], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 264], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 347], | 99.00th=[ 397], 99.50th=[ 447], 99.90th=[ 460], 99.95th=[ 506], | 99.99th=[ 506] bw ( KiB/s): min= 53, max= 318, per=25.15%, avg=131.81, stdev=38.29, samples=78 iops : min= 13, max= 79, avg=32.42, stdev= 9.63, samples=78 lat (msec) : 50=0.12%, 100=1.09%, 250=60.39%, 500=38.24%, 750=0.16% cpu : usr=0.26%, sys=1.68%, ctx=4029, 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=179299: Fri Sep 4 20:18:20 2026 read: IOPS=31, BW=127KiB/s (130kB/s)(5060KiB/39798msec) slat (usec): min=2986, max=85321, avg=18219.79, stdev=10552.38 clat (msec): min=22, max=443, avg=234.30, stdev=56.96 lat (msec): min=34, max=478, avg=252.53, stdev=59.51 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 153], 10.00th=[ 169], 20.00th=[ 190], | 30.00th=[ 205], 40.00th=[ 218], 50.00th=[ 230], 60.00th=[ 243], | 70.00th=[ 259], 80.00th=[ 279], 90.00th=[ 313], 95.00th=[ 338], | 99.00th=[ 380], 99.50th=[ 393], 99.90th=[ 430], 99.95th=[ 443], | 99.99th=[ 443] bw ( KiB/s): min= 55, max= 254, per=25.14%, avg=126.69, stdev=34.91, samples=78 iops : min= 13, max= 63, avg=31.17, stdev= 8.77, samples=78 write: IOPS=32, BW=130KiB/s (133kB/s)(5180KiB/39798msec); 0 zone resets slat (usec): min=23, max=33443, avg=284.71, stdev=1358.19 clat (msec): min=67, max=430, avg=242.33, stdev=57.87 lat (msec): min=67, max=430, avg=242.62, stdev=57.88 clat percentiles (msec): | 1.00th=[ 121], 5.00th=[ 157], 10.00th=[ 174], 20.00th=[ 197], | 30.00th=[ 211], 40.00th=[ 226], 50.00th=[ 236], 60.00th=[ 251], | 70.00th=[ 266], 80.00th=[ 292], 90.00th=[ 321], 95.00th=[ 347], | 99.00th=[ 397], 99.50th=[ 401], 99.90th=[ 426], 99.95th=[ 430], | 99.99th=[ 430] bw ( KiB/s): min= 64, max= 262, per=24.73%, avg=129.59, stdev=34.69, samples=78 iops : min= 16, max= 65, avg=31.92, stdev= 8.69, samples=78 lat (msec) : 50=0.04%, 100=0.66%, 250=61.52%, 500=37.77% cpu : usr=0.25%, sys=1.71%, ctx=3993, 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=504KiB/s (516kB/s), 125KiB/s-127KiB/s (128kB/s-130kB/s), io=19.6MiB (20.5MB), run=39704-39808msec WRITE: bw=525KiB/s (537kB/s), 130KiB/s-133KiB/s (133kB/s-136kB/s), io=20.4MiB (21.4MB), run=39704-39808msec 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=179309: Fri Sep 4 20:18:31 2026 read: IOPS=2, BW=95.2MiB/s (99.9MB/s)(40.0MiB/420msec) slat (nsec): min=42031k, max=42031k, avg=42030997.00, stdev= 0.00 clat (nsec): min=362839k, max=362839k, avg=362838783.00, stdev= 0.00 lat (nsec): min=404873k, max=404873k, avg=404873324.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 363], | 30.00th=[ 363], 40.00th=[ 363], 50.00th=[ 363], 60.00th=[ 363], | 70.00th=[ 363], 80.00th=[ 363], 90.00th=[ 363], 95.00th=[ 363], | 99.00th=[ 363], 99.50th=[ 363], 99.90th=[ 363], 99.95th=[ 363], | 99.99th=[ 363] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.86%, ctx=7, 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=95.2MiB/s (99.9MB/s), 95.2MiB/s-95.2MiB/s (99.9MB/s-99.9MB/s), io=40.0MiB (41.9MB), run=420-420msec 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