== sanity test 398c: run fio to test AIO ================= 19:41:50 (1788910910) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.287115 s, 146 MB/s osc.lustre-OST0000-osc-ffff900047d41000.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=152094: Tue Sep 8 19:43:27 2026 write: IOPS=27, BW=111KiB/s (114kB/s)(10.0MiB/92276msec); 0 zone resets slat (usec): min=21, max=6081, avg=224.86, stdev=463.51 clat (msec): min=93, max=1065, avg=576.06, stdev=138.89 lat (msec): min=93, max=1065, avg=576.29, stdev=138.90 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 351], 10.00th=[ 414], 20.00th=[ 464], | 30.00th=[ 510], 40.00th=[ 542], 50.00th=[ 567], 60.00th=[ 609], | 70.00th=[ 651], 80.00th=[ 701], 90.00th=[ 751], 95.00th=[ 802], | 99.00th=[ 894], 99.50th=[ 944], 99.90th=[ 1028], 99.95th=[ 1070], | 99.99th=[ 1070] bw ( KiB/s): min= 39, max= 246, per=24.86%, avg=110.14, stdev=30.74, samples=183 iops : min= 9, max= 61, avg=27.14, stdev= 7.74, samples=183 lat (msec) : 100=0.62%, 250=0.70%, 500=26.29%, 750=61.41%, 1000=10.66% lat (msec) : 2000=0.31% cpu : usr=0.06%, sys=0.38%, ctx=2495, 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=152095: Tue Sep 8 19:43:27 2026 write: IOPS=27, BW=111KiB/s (114kB/s)(10.0MiB/92197msec); 0 zone resets slat (usec): min=23, max=12164, avg=202.31, stdev=446.77 clat (msec): min=101, max=1061, avg=575.61, stdev=138.26 lat (msec): min=101, max=1061, avg=575.81, stdev=138.28 clat percentiles (msec): | 1.00th=[ 174], 5.00th=[ 355], 10.00th=[ 418], 20.00th=[ 464], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 575], 60.00th=[ 617], | 70.00th=[ 651], 80.00th=[ 701], 90.00th=[ 743], 95.00th=[ 785], | 99.00th=[ 911], 99.50th=[ 936], 99.90th=[ 1045], 99.95th=[ 1062], | 99.99th=[ 1062] bw ( KiB/s): min= 23, max= 299, per=24.87%, avg=110.16, stdev=33.28, samples=183 iops : min= 5, max= 74, avg=27.15, stdev= 8.33, samples=183 lat (msec) : 250=1.29%, 500=27.11%, 750=62.34%, 1000=9.10%, 2000=0.16% cpu : usr=0.07%, sys=0.37%, ctx=2152, 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=152096: Tue Sep 8 19:43:27 2026 write: IOPS=27, BW=111KiB/s (114kB/s)(10.0MiB/92196msec); 0 zone resets slat (usec): min=25, max=7196, avg=207.70, stdev=394.39 clat (msec): min=112, max=1030, avg=575.67, stdev=139.82 lat (msec): min=113, max=1030, avg=575.88, stdev=139.82 clat percentiles (msec): | 1.00th=[ 169], 5.00th=[ 342], 10.00th=[ 409], 20.00th=[ 464], | 30.00th=[ 506], 40.00th=[ 542], 50.00th=[ 567], 60.00th=[ 617], | 70.00th=[ 651], 80.00th=[ 693], 90.00th=[ 760], 95.00th=[ 793], | 99.00th=[ 869], 99.50th=[ 919], 99.90th=[ 995], 99.95th=[ 1003], | 99.99th=[ 1028] bw ( KiB/s): min= 39, max= 279, per=24.87%, avg=110.18, stdev=33.64, samples=183 iops : min= 9, max= 69, avg=27.15, stdev= 8.46, samples=183 lat (msec) : 250=1.45%, 500=27.66%, 750=59.45%, 1000=11.37%, 2000=0.08% cpu : usr=0.07%, sys=0.35%, ctx=2388, 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=152097: Tue Sep 8 19:43:27 2026 write: IOPS=27, BW=111KiB/s (114kB/s)(10.0MiB/92106msec); 0 zone resets slat (usec): min=22, max=8275, avg=204.92, stdev=412.65 clat (msec): min=52, max=1009, avg=575.26, stdev=139.54 lat (msec): min=52, max=1009, avg=575.46, stdev=139.54 clat percentiles (msec): | 1.00th=[ 138], 5.00th=[ 355], 10.00th=[ 422], 20.00th=[ 464], | 30.00th=[ 502], 40.00th=[ 535], 50.00th=[ 575], 60.00th=[ 609], | 70.00th=[ 659], 80.00th=[ 693], 90.00th=[ 751], 95.00th=[ 785], | 99.00th=[ 885], 99.50th=[ 927], 99.90th=[ 995], 99.95th=[ 1011], | 99.99th=[ 1011] bw ( KiB/s): min= 48, max= 318, per=24.91%, avg=110.36, stdev=32.52, samples=183 iops : min= 12, max= 79, avg=27.20, stdev= 8.15, samples=183 lat (msec) : 100=0.43%, 250=1.25%, 500=27.46%, 750=60.94%, 1000=9.84% lat (msec) : 2000=0.08% cpu : usr=0.07%, sys=0.38%, ctx=2428, 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=444KiB/s (455kB/s), 111KiB/s-111KiB/s (114kB/s-114kB/s), io=40.0MiB (41.9MB), run=92106-92276msec 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=152119: Tue Sep 8 19:44:08 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5048KiB/36896msec) slat (usec): min=37, max=17409, avg=4662.12, stdev=2056.41 clat (msec): min=8, max=375, avg=147.79, stdev=39.92 lat (msec): min=11, max=377, avg=152.46, stdev=40.50 clat percentiles (msec): | 1.00th=[ 44], 5.00th=[ 95], 10.00th=[ 106], 20.00th=[ 116], | 30.00th=[ 126], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 155], | 70.00th=[ 163], 80.00th=[ 178], 90.00th=[ 201], 95.00th=[ 220], | 99.00th=[ 251], 99.50th=[ 264], 99.90th=[ 372], 99.95th=[ 376], | 99.99th=[ 376] bw ( KiB/s): min= 56, max= 224, per=25.31%, avg=136.92, stdev=39.47, samples=73 iops : min= 14, max= 56, avg=34.01, stdev= 9.92, samples=73 write: IOPS=35, BW=141KiB/s (144kB/s)(5192KiB/36896msec); 0 zone resets slat (usec): min=34, max=3261, avg=173.45, stdev=202.72 clat (msec): min=51, max=582, avg=305.95, stdev=80.33 lat (msec): min=51, max=582, avg=306.13, stdev=80.34 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 188], 10.00th=[ 207], 20.00th=[ 239], | 30.00th=[ 259], 40.00th=[ 284], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 409], 95.00th=[ 439], | 99.00th=[ 523], 99.50th=[ 550], 99.90th=[ 575], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 71, max= 208, per=24.94%, avg=140.40, stdev=28.97, samples=73 iops : min= 17, max= 52, avg=34.88, stdev= 7.29, samples=73 lat (msec) : 10=0.04%, 20=0.12%, 50=0.47%, 100=3.12%, 250=58.48% lat (msec) : 500=37.07%, 750=0.70% cpu : usr=0.18%, sys=1.24%, ctx=5187, 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=152120: Tue Sep 8 19:44:08 2026 read: IOPS=33, BW=135KiB/s (138kB/s)(4976KiB/36995msec) slat (usec): min=1554, max=13811, avg=4604.12, stdev=1872.05 clat (msec): min=7, max=269, avg=147.65, stdev=35.28 lat (msec): min=10, max=275, avg=152.26, stdev=35.85 clat percentiles (msec): | 1.00th=[ 82], 5.00th=[ 97], 10.00th=[ 109], 20.00th=[ 120], | 30.00th=[ 129], 40.00th=[ 136], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 161], 80.00th=[ 174], 90.00th=[ 194], 95.00th=[ 215], | 99.00th=[ 245], 99.50th=[ 255], 99.90th=[ 266], 99.95th=[ 271], | 99.99th=[ 271] bw ( KiB/s): min= 39, max= 232, per=24.72%, avg=133.74, stdev=42.53, samples=73 iops : min= 9, max= 58, avg=33.22, stdev=10.73, samples=73 write: IOPS=35, BW=142KiB/s (146kB/s)(5264KiB/36995msec); 0 zone resets slat (usec): min=35, max=3495, avg=175.34, stdev=233.84 clat (msec): min=47, max=587, avg=304.73, stdev=81.18 lat (msec): min=48, max=587, avg=304.91, stdev=81.18 clat percentiles (msec): | 1.00th=[ 153], 5.00th=[ 182], 10.00th=[ 207], 20.00th=[ 234], | 30.00th=[ 255], 40.00th=[ 279], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 372], 90.00th=[ 409], 95.00th=[ 443], | 99.00th=[ 542], 99.50th=[ 567], 99.90th=[ 592], 99.95th=[ 592], | 99.99th=[ 592] bw ( KiB/s): min= 72, max= 222, per=25.12%, avg=141.42, stdev=33.72, samples=73 iops : min= 18, max= 55, avg=35.14, stdev= 8.42, samples=73 lat (msec) : 10=0.08%, 50=0.16%, 100=2.85%, 250=59.34%, 500=36.72% lat (msec) : 750=0.86% cpu : usr=0.20%, sys=1.21%, ctx=5164, 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=152121: Tue Sep 8 19:44:08 2026 read: IOPS=33, BW=134KiB/s (138kB/s)(4984KiB/37070msec) slat (usec): min=1693, max=16261, avg=4608.18, stdev=1873.23 clat (msec): min=4, max=285, avg=147.52, stdev=39.41 lat (msec): min=8, max=288, avg=152.14, stdev=39.91 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 92], 10.00th=[ 106], 20.00th=[ 118], | 30.00th=[ 127], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 163], 80.00th=[ 176], 90.00th=[ 199], 95.00th=[ 222], | 99.00th=[ 249], 99.50th=[ 259], 99.90th=[ 279], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 64, max= 263, per=24.71%, avg=133.67, stdev=41.97, samples=73 iops : min= 16, max= 65, avg=33.19, stdev=10.49, samples=73 write: IOPS=35, BW=142KiB/s (145kB/s)(5256KiB/37070msec); 0 zone resets slat (usec): min=34, max=3525, avg=176.03, stdev=230.59 clat (msec): min=51, max=598, avg=305.76, stdev=83.41 lat (msec): min=51, max=598, avg=305.94, stdev=83.42 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 184], 10.00th=[ 207], 20.00th=[ 236], | 30.00th=[ 262], 40.00th=[ 284], 50.00th=[ 300], 60.00th=[ 321], | 70.00th=[ 347], 80.00th=[ 376], 90.00th=[ 414], 95.00th=[ 447], | 99.00th=[ 531], 99.50th=[ 550], 99.90th=[ 592], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 63, max= 216, per=24.74%, avg=139.29, stdev=34.34, samples=73 iops : min= 15, max= 54, avg=34.60, stdev= 8.69, samples=73 lat (msec) : 10=0.20%, 20=0.08%, 50=0.35%, 100=3.75%, 250=57.27% lat (msec) : 500=37.42%, 750=0.94% cpu : usr=0.19%, sys=1.23%, ctx=5201, 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=152122: Tue Sep 8 19:44:08 2026 read: IOPS=34, BW=137KiB/s (140kB/s)(5060KiB/36933msec) slat (usec): min=1345, max=20015, avg=4622.14, stdev=1924.50 clat (msec): min=5, max=273, avg=149.06, stdev=38.12 lat (msec): min=10, max=280, avg=153.69, stdev=38.64 clat percentiles (msec): | 1.00th=[ 74], 5.00th=[ 93], 10.00th=[ 105], 20.00th=[ 118], | 30.00th=[ 128], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 165], 80.00th=[ 180], 90.00th=[ 203], 95.00th=[ 215], | 99.00th=[ 251], 99.50th=[ 262], 99.90th=[ 271], 99.95th=[ 275], | 99.99th=[ 275] bw ( KiB/s): min= 56, max= 231, per=25.35%, avg=137.15, stdev=35.65, samples=73 iops : min= 14, max= 57, avg=34.07, stdev= 8.91, samples=73 write: IOPS=35, BW=140KiB/s (144kB/s)(5180KiB/36933msec); 0 zone resets slat (usec): min=35, max=4842, avg=172.66, stdev=228.13 clat (msec): min=102, max=598, avg=304.93, stdev=80.37 lat (msec): min=102, max=598, avg=305.10, stdev=80.37 clat percentiles (msec): | 1.00th=[ 159], 5.00th=[ 184], 10.00th=[ 211], 20.00th=[ 234], | 30.00th=[ 257], 40.00th=[ 279], 50.00th=[ 296], 60.00th=[ 317], | 70.00th=[ 342], 80.00th=[ 368], 90.00th=[ 414], 95.00th=[ 443], | 99.00th=[ 542], 99.50th=[ 558], 99.90th=[ 592], 99.95th=[ 600], | 99.99th=[ 600] bw ( KiB/s): min= 63, max= 208, per=24.79%, avg=139.55, stdev=33.52, samples=73 iops : min= 15, max= 52, avg=34.67, stdev= 8.46, samples=73 lat (msec) : 10=0.04%, 20=0.04%, 50=0.16%, 100=4.02%, 250=58.52% lat (msec) : 500=36.29%, 750=0.94% cpu : usr=0.19%, sys=1.23%, ctx=5217, 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=541KiB/s (554kB/s), 134KiB/s-137KiB/s (138kB/s-140kB/s), io=19.6MiB (20.5MB), run=36896-37070msec WRITE: bw=564KiB/s (577kB/s), 140KiB/s-142KiB/s (144kB/s-146kB/s), io=20.4MiB (21.4MB), run=36896-37070msec 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=152131: Tue Sep 8 19:44:12 2026 read: IOPS=5, BW=226MiB/s (237MB/s)(40.0MiB/177msec) slat (nsec): min=15860k, max=15860k, avg=15859851.00, stdev= 0.00 clat (nsec): min=150465k, max=150465k, avg=150464710.00, stdev= 0.00 lat (nsec): min=166330k, max=166330k, avg=166329619.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 150], 10.00th=[ 150], 20.00th=[ 150], | 30.00th=[ 150], 40.00th=[ 150], 50.00th=[ 150], 60.00th=[ 150], | 70.00th=[ 150], 80.00th=[ 150], 90.00th=[ 150], 95.00th=[ 150], | 99.00th=[ 150], 99.50th=[ 150], 99.90th=[ 150], 99.95th=[ 150], | 99.99th=[ 150] lat (msec) : 250=100.00% cpu : usr=0.00%, sys=7.39%, ctx=44, majf=0, minf=9 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=226MiB/s (237MB/s), 226MiB/s-226MiB/s (237MB/s-237MB/s), io=40.0MiB (41.9MB), run=177-177msec 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