== sanity test 398c: run fio to test AIO ================= 03:03:18 (1787468598) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.723622 s, 58.0 MB/s osc.lustre-OST0000-osc-ffff91e608a63000.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=179915: Sun Aug 23 03:04:05 2026 write: IOPS=71, BW=286KiB/s (293kB/s)(10.0MiB/35842msec); 0 zone resets slat (usec): min=22, max=18491, avg=200.77, stdev=833.12 clat (msec): min=11, max=477, avg=223.58, stdev=75.94 lat (msec): min=11, max=477, avg=223.78, stdev=75.96 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 117], 10.00th=[ 130], 20.00th=[ 155], | 30.00th=[ 180], 40.00th=[ 194], 50.00th=[ 218], 60.00th=[ 239], | 70.00th=[ 262], 80.00th=[ 288], 90.00th=[ 321], 95.00th=[ 363], | 99.00th=[ 460], 99.50th=[ 464], 99.90th=[ 472], 99.95th=[ 472], | 99.99th=[ 477] bw ( KiB/s): min= 125, max= 507, per=25.15%, avg=285.46, stdev=92.04, samples=70 iops : min= 31, max= 126, avg=70.97, stdev=23.07, samples=70 lat (msec) : 20=0.04%, 50=0.08%, 100=2.81%, 250=61.88%, 500=35.20% cpu : usr=0.15%, sys=0.67%, ctx=1403, 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=179916: Sun Aug 23 03:04:05 2026 write: IOPS=70, BW=284KiB/s (291kB/s)(10.0MiB/36057msec); 0 zone resets slat (usec): min=22, max=53833, avg=262.21, stdev=1475.83 clat (msec): min=16, max=459, avg=223.91, stdev=74.74 lat (msec): min=16, max=460, avg=224.18, stdev=74.78 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 114], 10.00th=[ 134], 20.00th=[ 155], | 30.00th=[ 178], 40.00th=[ 197], 50.00th=[ 218], 60.00th=[ 243], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 418], 99.50th=[ 426], 99.90th=[ 451], 99.95th=[ 451], | 99.99th=[ 460] bw ( KiB/s): min= 111, max= 507, per=25.00%, avg=283.72, stdev=91.83, samples=71 iops : min= 27, max= 126, avg=70.51, stdev=23.01, samples=71 lat (msec) : 20=0.04%, 50=0.12%, 100=1.95%, 250=64.14%, 500=33.75% cpu : usr=0.14%, sys=0.80%, ctx=2033, 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=179917: Sun Aug 23 03:04:05 2026 write: IOPS=70, BW=284KiB/s (291kB/s)(10.0MiB/36071msec); 0 zone resets slat (usec): min=22, max=24803, avg=211.17, stdev=974.87 clat (msec): min=27, max=479, avg=224.16, stdev=75.57 lat (msec): min=27, max=479, avg=224.38, stdev=75.60 clat percentiles (msec): | 1.00th=[ 93], 5.00th=[ 112], 10.00th=[ 136], 20.00th=[ 155], | 30.00th=[ 176], 40.00th=[ 199], 50.00th=[ 218], 60.00th=[ 236], | 70.00th=[ 257], 80.00th=[ 288], 90.00th=[ 326], 95.00th=[ 368], | 99.00th=[ 418], 99.50th=[ 456], 99.90th=[ 464], 99.95th=[ 464], | 99.99th=[ 481] bw ( KiB/s): min= 126, max= 512, per=24.90%, avg=282.62, stdev=89.46, samples=71 iops : min= 31, max= 128, avg=70.25, stdev=22.41, samples=71 lat (msec) : 50=0.08%, 100=1.68%, 250=64.61%, 500=33.63% cpu : usr=0.16%, sys=0.82%, ctx=2012, 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=179918: Sun Aug 23 03:04:05 2026 write: IOPS=70, BW=284KiB/s (291kB/s)(10.0MiB/36068msec); 0 zone resets slat (usec): min=23, max=31814, avg=249.59, stdev=1191.76 clat (msec): min=35, max=458, avg=224.54, stdev=75.14 lat (msec): min=35, max=459, avg=224.79, stdev=75.16 clat percentiles (msec): | 1.00th=[ 94], 5.00th=[ 116], 10.00th=[ 133], 20.00th=[ 157], | 30.00th=[ 178], 40.00th=[ 199], 50.00th=[ 222], 60.00th=[ 236], | 70.00th=[ 259], 80.00th=[ 284], 90.00th=[ 326], 95.00th=[ 363], | 99.00th=[ 435], 99.50th=[ 439], 99.90th=[ 451], 99.95th=[ 460], | 99.99th=[ 460] bw ( KiB/s): min= 128, max= 512, per=25.02%, avg=284.03, stdev=85.63, samples=71 iops : min= 32, max= 128, avg=70.62, stdev=21.47, samples=71 lat (msec) : 50=0.04%, 100=2.07%, 250=65.16%, 500=32.73% cpu : usr=0.17%, sys=0.80%, ctx=2365, 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=1136KiB/s (1163kB/s), 284KiB/s-286KiB/s (291kB/s-293kB/s), io=40.0MiB (41.9MB), run=35842-36071msec 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=179934: Sun Aug 23 03:05:02 2026 read: IOPS=26, BW=106KiB/s (108kB/s)(5048KiB/47806msec) slat (usec): min=3222, max=94805, avg=20238.02, stdev=12751.66 clat (msec): min=60, max=705, avg=283.82, stdev=87.12 lat (msec): min=80, max=733, avg=304.07, stdev=91.07 clat percentiles (msec): | 1.00th=[ 146], 5.00th=[ 176], 10.00th=[ 190], 20.00th=[ 209], | 30.00th=[ 230], 40.00th=[ 247], 50.00th=[ 268], 60.00th=[ 288], | 70.00th=[ 317], 80.00th=[ 347], 90.00th=[ 414], 95.00th=[ 451], | 99.00th=[ 542], 99.50th=[ 567], 99.90th=[ 693], 99.95th=[ 709], | 99.99th=[ 709] bw ( KiB/s): min= 20, max= 199, per=25.14%, avg=105.33, stdev=34.62, samples=94 iops : min= 5, max= 49, avg=25.86, stdev= 8.70, samples=94 write: IOPS=27, BW=109KiB/s (111kB/s)(5192KiB/47806msec); 0 zone resets slat (usec): min=30, max=11847, avg=185.13, stdev=594.16 clat (msec): min=137, max=655, avg=288.66, stdev=84.63 lat (msec): min=137, max=655, avg=288.85, stdev=84.67 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 188], 10.00th=[ 201], 20.00th=[ 218], | 30.00th=[ 232], 40.00th=[ 249], 50.00th=[ 271], 60.00th=[ 292], | 70.00th=[ 321], 80.00th=[ 351], 90.00th=[ 418], 95.00th=[ 456], | 99.00th=[ 542], 99.50th=[ 567], 99.90th=[ 625], 99.95th=[ 659], | 99.99th=[ 659] bw ( KiB/s): min= 24, max= 198, per=25.14%, avg=109.87, stdev=36.91, samples=93 iops : min= 6, max= 49, avg=26.96, stdev= 9.24, samples=93 lat (msec) : 100=0.04%, 250=40.86%, 500=56.80%, 750=2.30% cpu : usr=0.23%, sys=1.11%, ctx=4250, 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=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=179935: Sun Aug 23 03:05:02 2026 read: IOPS=26, BW=104KiB/s (107kB/s)(4976KiB/47714msec) slat (msec): min=3, max=107, avg=19.76, stdev=12.96 clat (msec): min=21, max=857, avg=281.27, stdev=91.30 lat (msec): min=28, max=883, avg=301.04, stdev=95.90 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 174], 10.00th=[ 188], 20.00th=[ 209], | 30.00th=[ 224], 40.00th=[ 243], 50.00th=[ 262], 60.00th=[ 284], | 70.00th=[ 309], 80.00th=[ 347], 90.00th=[ 409], 95.00th=[ 451], | 99.00th=[ 567], 99.50th=[ 609], 99.90th=[ 785], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 20, max= 199, per=24.78%, avg=103.83, stdev=38.07, samples=94 iops : min= 5, max= 49, avg=25.48, stdev= 9.53, samples=94 write: IOPS=27, BW=110KiB/s (113kB/s)(5264KiB/47714msec); 0 zone resets slat (usec): min=31, max=27134, avg=283.54, stdev=1440.65 clat (msec): min=52, max=857, avg=291.49, stdev=87.68 lat (msec): min=52, max=857, avg=291.78, stdev=87.73 clat percentiles (msec): | 1.00th=[ 163], 5.00th=[ 186], 10.00th=[ 201], 20.00th=[ 222], | 30.00th=[ 236], 40.00th=[ 251], 50.00th=[ 275], 60.00th=[ 296], | 70.00th=[ 326], 80.00th=[ 359], 90.00th=[ 405], 95.00th=[ 468], | 99.00th=[ 550], 99.50th=[ 600], 99.90th=[ 684], 99.95th=[ 860], | 99.99th=[ 860] bw ( KiB/s): min= 31, max= 183, per=25.23%, avg=110.23, stdev=33.62, samples=94 iops : min= 7, max= 45, avg=27.06, stdev= 8.44, samples=94 lat (msec) : 50=0.04%, 100=0.08%, 250=41.13%, 500=56.02%, 750=2.58% lat (msec) : 1000=0.16% cpu : usr=0.17%, sys=1.10%, ctx=3983, 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=179936: Sun Aug 23 03:05:02 2026 read: IOPS=26, BW=104KiB/s (107kB/s)(4984KiB/47790msec) slat (msec): min=3, max=122, avg=19.97, stdev=12.94 clat (msec): min=44, max=627, avg=284.81, stdev=87.30 lat (msec): min=50, max=655, avg=304.78, stdev=91.60 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 178], 10.00th=[ 194], 20.00th=[ 213], | 30.00th=[ 228], 40.00th=[ 245], 50.00th=[ 264], 60.00th=[ 288], | 70.00th=[ 317], 80.00th=[ 355], 90.00th=[ 422], 95.00th=[ 460], | 99.00th=[ 523], 99.50th=[ 550], 99.90th=[ 575], 99.95th=[ 625], | 99.99th=[ 625] bw ( KiB/s): min= 20, max= 192, per=24.93%, avg=104.45, stdev=33.73, samples=94 iops : min= 5, max= 48, avg=25.63, stdev= 8.49, samples=94 write: IOPS=27, BW=110KiB/s (113kB/s)(5256KiB/47790msec); 0 zone resets slat (usec): min=29, max=10154, avg=191.00, stdev=604.49 clat (msec): min=149, max=719, avg=288.63, stdev=86.23 lat (msec): min=149, max=719, avg=288.82, stdev=86.26 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 188], 10.00th=[ 199], 20.00th=[ 218], | 30.00th=[ 234], 40.00th=[ 251], 50.00th=[ 271], 60.00th=[ 288], | 70.00th=[ 313], 80.00th=[ 355], 90.00th=[ 401], 95.00th=[ 464], | 99.00th=[ 542], 99.50th=[ 558], 99.90th=[ 718], 99.95th=[ 718], | 99.99th=[ 718] bw ( KiB/s): min= 27, max= 216, per=25.05%, avg=109.48, stdev=37.52, samples=94 iops : min= 6, max= 54, avg=26.86, stdev= 9.40, samples=94 lat (msec) : 50=0.04%, 250=40.59%, 500=56.80%, 750=2.58% cpu : usr=0.23%, sys=1.23%, ctx=4123, 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=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=179937: Sun Aug 23 03:05:02 2026 read: IOPS=26, BW=107KiB/s (109kB/s)(5060KiB/47422msec) slat (usec): min=49, max=103783, avg=19890.96, stdev=13276.47 clat (msec): min=51, max=788, avg=282.26, stdev=92.78 lat (msec): min=51, max=813, avg=302.16, stdev=96.61 clat percentiles (msec): | 1.00th=[ 140], 5.00th=[ 171], 10.00th=[ 190], 20.00th=[ 209], | 30.00th=[ 224], 40.00th=[ 241], 50.00th=[ 262], 60.00th=[ 288], | 70.00th=[ 309], 80.00th=[ 351], 90.00th=[ 418], 95.00th=[ 460], | 99.00th=[ 558], 99.50th=[ 625], 99.90th=[ 776], 99.95th=[ 793], | 99.99th=[ 793] bw ( KiB/s): min= 32, max= 169, per=25.50%, avg=106.83, stdev=32.63, samples=93 iops : min= 8, max= 42, avg=26.22, stdev= 8.21, samples=93 write: IOPS=27, BW=109KiB/s (112kB/s)(5180KiB/47422msec); 0 zone resets slat (usec): min=31, max=30682, avg=208.77, stdev=1027.48 clat (msec): min=44, max=891, avg=289.47, stdev=90.56 lat (msec): min=44, max=892, avg=289.68, stdev=90.58 clat percentiles (msec): | 1.00th=[ 161], 5.00th=[ 184], 10.00th=[ 199], 20.00th=[ 218], | 30.00th=[ 234], 40.00th=[ 251], 50.00th=[ 271], 60.00th=[ 292], | 70.00th=[ 313], 80.00th=[ 355], 90.00th=[ 418], 95.00th=[ 464], | 99.00th=[ 567], 99.50th=[ 617], 99.90th=[ 818], 99.95th=[ 894], | 99.99th=[ 894] bw ( KiB/s): min= 23, max= 214, per=25.05%, avg=109.46, stdev=35.78, samples=93 iops : min= 5, max= 53, avg=26.87, stdev= 8.98, samples=93 lat (msec) : 50=0.04%, 100=0.20%, 250=41.68%, 500=55.51%, 750=2.38% lat (msec) : 1000=0.20% cpu : usr=0.18%, sys=1.15%, ctx=4021, 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=420KiB/s (430kB/s), 104KiB/s-107KiB/s (107kB/s-109kB/s), io=19.6MiB (20.5MB), run=47422-47806msec WRITE: bw=437KiB/s (448kB/s), 109KiB/s-110KiB/s (111kB/s-113kB/s), io=20.4MiB (21.4MB), run=47422-47806msec 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=179948: Sun Aug 23 03:05:16 2026 read: IOPS=1, BW=46.8MiB/s (49.1MB/s)(40.0MiB/854msec) slat (nsec): min=29196k, max=29196k, avg=29196304.00, stdev= 0.00 clat (nsec): min=794373k, max=794373k, avg=794373200.00, stdev= 0.00 lat (nsec): min=823574k, max=823574k, avg=823573837.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 793], 5.00th=[ 793], 10.00th=[ 793], 20.00th=[ 793], | 30.00th=[ 793], 40.00th=[ 793], 50.00th=[ 793], 60.00th=[ 793], | 70.00th=[ 793], 80.00th=[ 793], 90.00th=[ 793], 95.00th=[ 793], | 99.00th=[ 793], 99.50th=[ 793], 99.90th=[ 793], 99.95th=[ 793], | 99.99th=[ 793] lat (msec) : 1000=100.00% cpu : usr=0.23%, sys=2.11%, ctx=4, 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=46.8MiB/s (49.1MB/s), 46.8MiB/s-46.8MiB/s (49.1MB/s-49.1MB/s), io=40.0MiB (41.9MB), run=854-854msec 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