== sanity test 398c: run fio to test AIO ================= 20:47:31 (1787791651) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.307269 s, 137 MB/s osc.lustre-OST0000-osc-ffff89e5062c3000.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=181270: Wed Aug 26 20:47:58 2026 write: IOPS=126, BW=507KiB/s (519kB/s)(10.0MiB/20201msec); 0 zone resets slat (usec): min=25, max=7684, avg=186.46, stdev=462.85 clat (msec): min=46, max=265, avg=125.92, stdev=25.69 lat (msec): min=46, max=265, avg=126.11, stdev=25.71 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 86], 10.00th=[ 96], 20.00th=[ 106], | 30.00th=[ 113], 40.00th=[ 118], 50.00th=[ 125], 60.00th=[ 132], | 70.00th=[ 140], 80.00th=[ 146], 90.00th=[ 159], 95.00th=[ 167], | 99.00th=[ 184], 99.50th=[ 192], 99.90th=[ 266], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 312, max= 710, per=24.92%, avg=503.88, stdev=81.89, samples=40 iops : min= 78, max= 177, avg=125.73, stdev=20.39, samples=40 lat (msec) : 50=0.35%, 100=12.73%, 250=86.56%, 500=0.35% cpu : usr=0.19%, sys=1.05%, ctx=2656, 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=181271: Wed Aug 26 20:47:58 2026 write: IOPS=126, BW=506KiB/s (518kB/s)(10.0MiB/20253msec); 0 zone resets slat (usec): min=27, max=4901, avg=181.22, stdev=372.99 clat (msec): min=15, max=185, avg=125.56, stdev=23.79 lat (msec): min=15, max=185, avg=125.74, stdev=23.80 clat percentiles (msec): | 1.00th=[ 72], 5.00th=[ 89], 10.00th=[ 99], 20.00th=[ 107], | 30.00th=[ 112], 40.00th=[ 118], 50.00th=[ 125], 60.00th=[ 133], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 157], 95.00th=[ 169], | 99.00th=[ 180], 99.50th=[ 180], 99.90th=[ 184], 99.95th=[ 184], | 99.99th=[ 186] bw ( KiB/s): min= 384, max= 646, per=24.90%, avg=503.48, stdev=67.07, samples=40 iops : min= 96, max= 161, avg=125.58, stdev=16.69, samples=40 lat (msec) : 20=0.08%, 100=10.70%, 250=89.22% cpu : usr=0.14%, sys=1.25%, ctx=2928, 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=181272: Wed Aug 26 20:47:58 2026 write: IOPS=126, BW=507KiB/s (519kB/s)(10.0MiB/20201msec); 0 zone resets slat (usec): min=29, max=8996, avg=214.50, stdev=496.97 clat (msec): min=10, max=226, avg=125.28, stdev=24.62 lat (msec): min=11, max=226, avg=125.50, stdev=24.63 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 89], 10.00th=[ 97], 20.00th=[ 107], | 30.00th=[ 113], 40.00th=[ 118], 50.00th=[ 125], 60.00th=[ 132], | 70.00th=[ 140], 80.00th=[ 146], 90.00th=[ 157], 95.00th=[ 167], | 99.00th=[ 180], 99.50th=[ 182], 99.90th=[ 190], 99.95th=[ 228], | 99.99th=[ 228] bw ( KiB/s): min= 384, max= 654, per=24.95%, avg=504.55, stdev=69.80, samples=40 iops : min= 96, max= 163, avg=125.88, stdev=17.39, samples=40 lat (msec) : 20=0.16%, 50=0.23%, 100=13.24%, 250=86.37% cpu : usr=0.24%, sys=1.46%, ctx=3203, 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=181273: Wed Aug 26 20:47:58 2026 write: IOPS=126, BW=506KiB/s (518kB/s)(10.0MiB/20254msec); 0 zone resets slat (usec): min=23, max=7542, avg=195.08, stdev=432.86 clat (msec): min=52, max=189, avg=125.61, stdev=23.88 lat (msec): min=53, max=189, avg=125.81, stdev=23.90 clat percentiles (msec): | 1.00th=[ 59], 5.00th=[ 90], 10.00th=[ 97], 20.00th=[ 107], | 30.00th=[ 113], 40.00th=[ 117], 50.00th=[ 126], 60.00th=[ 132], | 70.00th=[ 138], 80.00th=[ 144], 90.00th=[ 159], 95.00th=[ 167], | 99.00th=[ 182], 99.50th=[ 186], 99.90th=[ 186], 99.95th=[ 188], | 99.99th=[ 190] bw ( KiB/s): min= 384, max= 662, per=24.88%, avg=503.10, stdev=74.19, samples=40 iops : min= 96, max= 165, avg=125.52, stdev=18.49, samples=40 lat (msec) : 100=12.19%, 250=87.81% cpu : usr=0.12%, sys=1.21%, ctx=2983, 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=2022KiB/s (2071kB/s), 506KiB/s-507KiB/s (518kB/s-519kB/s), io=40.0MiB (41.9MB), run=20201-20254msec 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=181287: Wed Aug 26 20:48:28 2026 read: IOPS=51, BW=206KiB/s (211kB/s)(5048KiB/24486msec) slat (usec): min=2478, max=43190, avg=10145.39, stdev=5180.30 clat (msec): min=66, max=288, avg=144.96, stdev=32.52 lat (msec): min=72, max=299, avg=155.11, stdev=33.53 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 95], 10.00th=[ 107], 20.00th=[ 118], | 30.00th=[ 127], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 150], | 70.00th=[ 161], 80.00th=[ 174], 90.00th=[ 190], 95.00th=[ 203], | 99.00th=[ 230], 99.50th=[ 239], 99.90th=[ 262], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 135, max= 263, per=25.08%, avg=203.90, stdev=31.96, samples=48 iops : min= 33, max= 65, avg=50.52, stdev= 8.06, samples=48 write: IOPS=53, BW=212KiB/s (217kB/s)(5192KiB/24486msec); 0 zone resets slat (usec): min=34, max=6073, avg=185.31, stdev=383.98 clat (msec): min=37, max=265, avg=149.23, stdev=31.61 lat (msec): min=37, max=265, avg=149.42, stdev=31.61 clat percentiles (msec): | 1.00th=[ 83], 5.00th=[ 102], 10.00th=[ 111], 20.00th=[ 123], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 176], 90.00th=[ 188], 95.00th=[ 205], | 99.00th=[ 239], 99.50th=[ 247], 99.90th=[ 262], 99.95th=[ 266], | 99.99th=[ 266] bw ( KiB/s): min= 125, max= 278, per=24.90%, avg=210.69, stdev=36.21, samples=48 iops : min= 31, max= 69, avg=52.23, stdev= 9.07, samples=48 lat (msec) : 50=0.04%, 100=5.86%, 250=93.83%, 500=0.27% cpu : usr=0.27%, sys=1.78%, ctx=4655, 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=181288: Wed Aug 26 20:48:28 2026 read: IOPS=50, BW=202KiB/s (207kB/s)(4976KiB/24675msec) slat (usec): min=35, max=206708, avg=10593.10, stdev=9115.71 clat (msec): min=29, max=636, avg=145.64, stdev=43.93 lat (msec): min=29, max=655, avg=156.24, stdev=46.57 clat percentiles (msec): | 1.00th=[ 78], 5.00th=[ 95], 10.00th=[ 105], 20.00th=[ 116], | 30.00th=[ 126], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 148], | 70.00th=[ 159], 80.00th=[ 171], 90.00th=[ 188], 95.00th=[ 203], | 99.00th=[ 230], 99.50th=[ 342], 99.90th=[ 592], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 47, max= 310, per=24.43%, avg=198.58, stdev=47.83, samples=48 iops : min= 11, max= 77, avg=49.21, stdev=12.00, samples=48 write: IOPS=53, BW=213KiB/s (218kB/s)(5264KiB/24675msec); 0 zone resets slat (usec): min=27, max=5405, avg=175.54, stdev=353.11 clat (msec): min=25, max=633, avg=151.76, stdev=48.13 lat (msec): min=25, max=633, avg=151.94, stdev=48.13 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 99], 10.00th=[ 111], 20.00th=[ 124], | 30.00th=[ 132], 40.00th=[ 140], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 167], 80.00th=[ 176], 90.00th=[ 190], 95.00th=[ 207], | 99.00th=[ 251], 99.50th=[ 592], 99.90th=[ 617], 99.95th=[ 634], | 99.99th=[ 634] bw ( KiB/s): min= 95, max= 295, per=24.91%, avg=210.77, stdev=44.80, samples=48 iops : min= 23, max= 73, avg=52.25, stdev=11.24, samples=48 lat (msec) : 50=0.27%, 100=6.13%, 250=92.62%, 500=0.47%, 750=0.51% cpu : usr=0.21%, sys=1.88%, ctx=4598, 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=181289: Wed Aug 26 20:48:28 2026 read: IOPS=50, BW=202KiB/s (207kB/s)(4984KiB/24677msec) slat (msec): min=2, max=138, avg=10.59, stdev= 7.90 clat (msec): min=16, max=546, avg=148.52, stdev=46.64 lat (msec): min=26, max=552, avg=159.12, stdev=48.21 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 92], 10.00th=[ 104], 20.00th=[ 118], | 30.00th=[ 128], 40.00th=[ 138], 50.00th=[ 144], 60.00th=[ 153], | 70.00th=[ 163], 80.00th=[ 174], 90.00th=[ 194], 95.00th=[ 209], | 99.00th=[ 275], 99.50th=[ 472], 99.90th=[ 535], 99.95th=[ 550], | 99.99th=[ 550] bw ( KiB/s): min= 88, max= 296, per=24.60%, avg=199.98, stdev=37.90, samples=48 iops : min= 22, max= 74, avg=49.54, stdev= 9.52, samples=48 write: IOPS=53, BW=213KiB/s (218kB/s)(5256KiB/24677msec); 0 zone resets slat (usec): min=32, max=8260, avg=201.79, stdev=509.16 clat (msec): min=62, max=554, avg=147.88, stdev=37.80 lat (msec): min=62, max=554, avg=148.08, stdev=37.80 clat percentiles (msec): | 1.00th=[ 84], 5.00th=[ 97], 10.00th=[ 107], 20.00th=[ 121], | 30.00th=[ 130], 40.00th=[ 138], 50.00th=[ 146], 60.00th=[ 155], | 70.00th=[ 163], 80.00th=[ 174], 90.00th=[ 186], 95.00th=[ 201], | 99.00th=[ 228], 99.50th=[ 245], 99.90th=[ 550], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 56, max= 310, per=24.72%, avg=209.10, stdev=49.55, samples=48 iops : min= 14, max= 77, avg=51.85, stdev=12.40, samples=48 lat (msec) : 20=0.04%, 50=0.04%, 100=7.54%, 250=91.64%, 500=0.39% lat (msec) : 750=0.35% cpu : usr=0.25%, sys=2.00%, ctx=4650, majf=0, minf=16 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=181290: Wed Aug 26 20:48:28 2026 read: IOPS=51, BW=208KiB/s (213kB/s)(5060KiB/24358msec) slat (usec): min=2333, max=44946, avg=10338.58, stdev=5287.23 clat (msec): min=45, max=258, avg=143.22, stdev=31.36 lat (msec): min=65, max=273, avg=153.56, stdev=32.43 clat percentiles (msec): | 1.00th=[ 77], 5.00th=[ 93], 10.00th=[ 106], 20.00th=[ 118], | 30.00th=[ 127], 40.00th=[ 134], 50.00th=[ 142], 60.00th=[ 150], | 70.00th=[ 159], 80.00th=[ 169], 90.00th=[ 186], 95.00th=[ 197], | 99.00th=[ 220], 99.50th=[ 234], 99.90th=[ 255], 99.95th=[ 259], | 99.99th=[ 259] bw ( KiB/s): min= 110, max= 280, per=25.46%, avg=207.02, stdev=37.16, samples=48 iops : min= 27, max= 70, avg=51.31, stdev= 9.37, samples=48 write: IOPS=53, BW=213KiB/s (218kB/s)(5180KiB/24358msec); 0 zone resets slat (usec): min=34, max=6506, avg=182.37, stdev=360.73 clat (msec): min=63, max=281, avg=149.49, stdev=31.33 lat (msec): min=63, max=281, avg=149.68, stdev=31.32 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 103], 10.00th=[ 113], 20.00th=[ 124], | 30.00th=[ 134], 40.00th=[ 142], 50.00th=[ 148], 60.00th=[ 157], | 70.00th=[ 165], 80.00th=[ 174], 90.00th=[ 190], 95.00th=[ 203], | 99.00th=[ 243], 99.50th=[ 266], 99.90th=[ 284], 99.95th=[ 284], | 99.99th=[ 284] bw ( KiB/s): min= 119, max= 318, per=24.90%, avg=210.69, stdev=38.00, samples=48 iops : min= 29, max= 79, avg=52.25, stdev= 9.52, samples=48 lat (msec) : 50=0.04%, 100=5.86%, 250=93.55%, 500=0.55% cpu : usr=0.25%, sys=2.00%, ctx=4887, 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=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=813KiB/s (833kB/s), 202KiB/s-208KiB/s (207kB/s-213kB/s), io=19.6MiB (20.5MB), run=24358-24677msec WRITE: bw=847KiB/s (867kB/s), 212KiB/s-213KiB/s (217kB/s-218kB/s), io=20.4MiB (21.4MB), run=24358-24677msec 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=181298: Wed Aug 26 20:48:36 2026 read: IOPS=2, BW=90.9MiB/s (95.3MB/s)(40.0MiB/440msec) slat (nsec): min=27304k, max=27304k, avg=27304475.00, stdev= 0.00 clat (nsec): min=398871k, max=398871k, avg=398871256.00, stdev= 0.00 lat (nsec): min=426181k, max=426181k, avg=426180660.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 401], 5.00th=[ 401], 10.00th=[ 401], 20.00th=[ 401], | 30.00th=[ 401], 40.00th=[ 401], 50.00th=[ 401], 60.00th=[ 401], | 70.00th=[ 401], 80.00th=[ 401], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=1.82%, ctx=4, majf=0, minf=10 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=90.9MiB/s (95.3MB/s), 90.9MiB/s-90.9MiB/s (95.3MB/s-95.3MB/s), io=40.0MiB (41.9MB), run=440-440msec 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