== sanity test 398c: run fio to test AIO ================= 19:22:30 (1786836150) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.322534 s, 130 MB/s osc.lustre-OST0000-osc-ffff958f0896b000.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=179410: Sat Aug 15 19:22:56 2026 write: IOPS=128, BW=515KiB/s (528kB/s)(10.0MiB/19872msec); 0 zone resets slat (usec): min=35, max=42546, avg=266.69, stdev=969.79 clat (msec): min=17, max=222, avg=123.12, stdev=27.16 lat (msec): min=18, max=222, avg=123.38, stdev=27.13 clat percentiles (msec): | 1.00th=[ 66], 5.00th=[ 84], 10.00th=[ 91], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 115], 50.00th=[ 122], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 159], 95.00th=[ 171], | 99.00th=[ 192], 99.50th=[ 207], 99.90th=[ 211], 99.95th=[ 224], | 99.99th=[ 224] bw ( KiB/s): min= 375, max= 685, per=25.00%, avg=515.05, stdev=78.58, samples=39 iops : min= 93, max= 171, avg=128.44, stdev=19.77, samples=39 lat (msec) : 20=0.04%, 50=0.12%, 100=20.66%, 250=79.18% cpu : usr=0.23%, sys=1.80%, ctx=2799, 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=179411: Sat Aug 15 19:22:56 2026 write: IOPS=128, BW=515KiB/s (528kB/s)(10.0MiB/19866msec); 0 zone resets slat (usec): min=34, max=13386, avg=253.52, stdev=565.11 clat (msec): min=20, max=215, avg=123.01, stdev=26.70 lat (msec): min=21, max=215, avg=123.27, stdev=26.70 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 85], 10.00th=[ 90], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 115], 50.00th=[ 122], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 159], 95.00th=[ 169], | 99.00th=[ 188], 99.50th=[ 190], 99.90th=[ 215], 99.95th=[ 215], | 99.99th=[ 215] bw ( KiB/s): min= 319, max= 688, per=25.02%, avg=515.38, stdev=74.66, samples=39 iops : min= 79, max= 172, avg=128.49, stdev=18.78, samples=39 lat (msec) : 50=0.16%, 100=21.05%, 250=78.79% cpu : usr=0.22%, sys=1.74%, ctx=2860, 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=179412: Sat Aug 15 19:22:56 2026 write: IOPS=129, BW=518KiB/s (530kB/s)(10.0MiB/19787msec); 0 zone resets slat (usec): min=36, max=7526, avg=223.44, stdev=401.18 clat (msec): min=56, max=212, avg=123.28, stdev=26.25 lat (msec): min=56, max=212, avg=123.51, stdev=26.23 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 85], 10.00th=[ 91], 20.00th=[ 100], | 30.00th=[ 107], 40.00th=[ 115], 50.00th=[ 123], 60.00th=[ 130], | 70.00th=[ 138], 80.00th=[ 144], 90.00th=[ 159], 95.00th=[ 171], | 99.00th=[ 188], 99.50th=[ 188], 99.90th=[ 205], 99.95th=[ 211], | 99.99th=[ 213] bw ( KiB/s): min= 375, max= 693, per=25.08%, avg=516.59, stdev=81.86, samples=39 iops : min= 93, max= 173, avg=128.82, stdev=20.58, samples=39 lat (msec) : 100=20.82%, 250=79.18% cpu : usr=0.21%, sys=1.55%, ctx=2611, 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=179413: Sat Aug 15 19:22:56 2026 write: IOPS=128, BW=515KiB/s (527kB/s)(10.0MiB/19883msec); 0 zone resets slat (usec): min=35, max=13763, avg=254.80, stdev=564.94 clat (msec): min=39, max=203, avg=123.10, stdev=26.57 lat (msec): min=40, max=204, avg=123.36, stdev=26.57 clat percentiles (msec): | 1.00th=[ 70], 5.00th=[ 86], 10.00th=[ 91], 20.00th=[ 101], | 30.00th=[ 106], 40.00th=[ 113], 50.00th=[ 122], 60.00th=[ 131], | 70.00th=[ 138], 80.00th=[ 146], 90.00th=[ 159], 95.00th=[ 167], | 99.00th=[ 197], 99.50th=[ 199], 99.90th=[ 199], 99.95th=[ 199], | 99.99th=[ 205] bw ( KiB/s): min= 383, max= 677, per=24.85%, avg=511.82, stdev=82.67, samples=39 iops : min= 95, max= 169, avg=127.64, stdev=20.79, samples=39 lat (msec) : 50=0.08%, 100=20.16%, 250=79.77% cpu : usr=0.22%, sys=1.66%, ctx=2636, 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=2060KiB/s (2109kB/s), 515KiB/s-518KiB/s (527kB/s-530kB/s), io=40.0MiB (41.9MB), run=19787-19883msec 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=179426: Sat Aug 15 19:23:17 2026 read: IOPS=76, BW=308KiB/s (315kB/s)(5048KiB/16413msec) slat (usec): min=58, max=30576, avg=6859.48, stdev=3379.89 clat (msec): min=21, max=237, avg=97.17, stdev=22.18 lat (msec): min=22, max=243, avg=104.04, stdev=23.05 clat percentiles (msec): | 1.00th=[ 54], 5.00th=[ 65], 10.00th=[ 71], 20.00th=[ 80], | 30.00th=[ 85], 40.00th=[ 91], 50.00th=[ 95], 60.00th=[ 102], | 70.00th=[ 108], 80.00th=[ 115], 90.00th=[ 125], 95.00th=[ 133], | 99.00th=[ 157], 99.50th=[ 163], 99.90th=[ 230], 99.95th=[ 239], | 99.99th=[ 239] bw ( KiB/s): min= 200, max= 397, per=25.33%, avg=308.28, stdev=48.97, samples=32 iops : min= 50, max= 99, avg=76.75, stdev=12.13, samples=32 write: IOPS=79, BW=316KiB/s (324kB/s)(5192KiB/16413msec); 0 zone resets slat (usec): min=55, max=4750, avg=217.22, stdev=324.93 clat (msec): min=48, max=245, avg=100.39, stdev=22.32 lat (msec): min=51, max=246, avg=100.61, stdev=22.31 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 71], 10.00th=[ 77], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 92], 50.00th=[ 96], 60.00th=[ 103], | 70.00th=[ 110], 80.00th=[ 116], 90.00th=[ 130], 95.00th=[ 144], | 99.00th=[ 161], 99.50th=[ 169], 99.90th=[ 234], 99.95th=[ 247], | 99.99th=[ 247] bw ( KiB/s): min= 216, max= 455, per=25.10%, avg=317.97, stdev=56.94, samples=32 iops : min= 54, max= 113, avg=79.16, stdev=14.14, samples=32 lat (msec) : 50=0.35%, 100=56.56%, 250=43.09% cpu : usr=0.29%, sys=2.72%, ctx=4756, 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=179427: Sat Aug 15 19:23:17 2026 read: IOPS=75, BW=302KiB/s (309kB/s)(4976KiB/16479msec) slat (usec): min=1554, max=25016, avg=6955.13, stdev=3441.49 clat (msec): min=23, max=185, avg=97.69, stdev=21.96 lat (msec): min=28, max=197, avg=104.65, stdev=22.88 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 66], 10.00th=[ 72], 20.00th=[ 80], | 30.00th=[ 86], 40.00th=[ 91], 50.00th=[ 96], 60.00th=[ 102], | 70.00th=[ 107], 80.00th=[ 115], 90.00th=[ 128], 95.00th=[ 136], | 99.00th=[ 163], 99.50th=[ 169], 99.90th=[ 184], 99.95th=[ 186], | 99.99th=[ 186] bw ( KiB/s): min= 180, max= 429, per=24.87%, avg=302.62, stdev=55.13, samples=32 iops : min= 45, max= 107, avg=75.34, stdev=13.70, samples=32 write: IOPS=79, BW=319KiB/s (327kB/s)(5264KiB/16479msec); 0 zone resets slat (usec): min=39, max=6013, avg=229.37, stdev=424.19 clat (msec): min=22, max=173, avg=99.76, stdev=20.77 lat (msec): min=22, max=173, avg=99.99, stdev=20.80 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 71], 10.00th=[ 77], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 97], 60.00th=[ 103], | 70.00th=[ 109], 80.00th=[ 116], 90.00th=[ 128], 95.00th=[ 140], | 99.00th=[ 157], 99.50th=[ 163], 99.90th=[ 171], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 208, max= 423, per=25.36%, avg=321.34, stdev=57.64, samples=32 iops : min= 52, max= 105, avg=80.00, stdev=14.34, samples=32 lat (msec) : 50=0.20%, 100=56.41%, 250=43.40% cpu : usr=0.18%, sys=2.72%, ctx=4760, 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=179428: Sat Aug 15 19:23:17 2026 read: IOPS=75, BW=302KiB/s (310kB/s)(4984KiB/16478msec) slat (usec): min=1901, max=30881, avg=7094.78, stdev=3564.84 clat (msec): min=10, max=164, avg=96.46, stdev=21.41 lat (msec): min=13, max=187, avg=103.56, stdev=22.47 clat percentiles (msec): | 1.00th=[ 57], 5.00th=[ 65], 10.00th=[ 70], 20.00th=[ 79], | 30.00th=[ 85], 40.00th=[ 90], 50.00th=[ 95], 60.00th=[ 100], | 70.00th=[ 107], 80.00th=[ 114], 90.00th=[ 126], 95.00th=[ 136], | 99.00th=[ 155], 99.50th=[ 157], 99.90th=[ 165], 99.95th=[ 165], | 99.99th=[ 165] bw ( KiB/s): min= 153, max= 439, per=24.92%, avg=303.31, stdev=66.93, samples=32 iops : min= 38, max= 109, avg=75.53, stdev=16.57, samples=32 write: IOPS=79, BW=319KiB/s (327kB/s)(5256KiB/16478msec); 0 zone resets slat (usec): min=40, max=5879, avg=231.44, stdev=392.79 clat (msec): min=20, max=176, avg=100.20, stdev=21.96 lat (msec): min=21, max=176, avg=100.43, stdev=21.97 clat percentiles (msec): | 1.00th=[ 61], 5.00th=[ 69], 10.00th=[ 75], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 93], 50.00th=[ 97], 60.00th=[ 103], | 70.00th=[ 111], 80.00th=[ 120], 90.00th=[ 129], 95.00th=[ 140], | 99.00th=[ 163], 99.50th=[ 165], 99.90th=[ 174], 99.95th=[ 176], | 99.99th=[ 176] bw ( KiB/s): min= 207, max= 424, per=25.12%, avg=318.22, stdev=59.23, samples=32 iops : min= 51, max= 106, avg=79.22, stdev=14.82, samples=32 lat (msec) : 20=0.08%, 50=0.39%, 100=57.85%, 250=41.68% cpu : usr=0.25%, sys=2.86%, ctx=4823, 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=179429: Sat Aug 15 19:23:17 2026 read: IOPS=76, BW=307KiB/s (314kB/s)(5060KiB/16478msec) slat (usec): min=1746, max=26117, avg=6926.46, stdev=3329.63 clat (msec): min=45, max=170, avg=97.08, stdev=20.59 lat (msec): min=49, max=185, avg=104.01, stdev=21.55 clat percentiles (msec): | 1.00th=[ 58], 5.00th=[ 66], 10.00th=[ 73], 20.00th=[ 80], | 30.00th=[ 86], 40.00th=[ 91], 50.00th=[ 95], 60.00th=[ 101], | 70.00th=[ 106], 80.00th=[ 115], 90.00th=[ 126], 95.00th=[ 134], | 99.00th=[ 155], 99.50th=[ 159], 99.90th=[ 165], 99.95th=[ 171], | 99.99th=[ 171] bw ( KiB/s): min= 186, max= 429, per=25.35%, avg=308.56, stdev=58.48, samples=32 iops : min= 46, max= 107, avg=76.81, stdev=14.52, samples=32 write: IOPS=78, BW=314KiB/s (322kB/s)(5180KiB/16478msec); 0 zone resets slat (usec): min=42, max=8496, avg=233.01, stdev=458.58 clat (msec): min=56, max=198, avg=100.12, stdev=20.70 lat (msec): min=56, max=198, avg=100.35, stdev=20.73 clat percentiles (msec): | 1.00th=[ 63], 5.00th=[ 71], 10.00th=[ 77], 20.00th=[ 83], | 30.00th=[ 88], 40.00th=[ 92], 50.00th=[ 99], 60.00th=[ 104], | 70.00th=[ 110], 80.00th=[ 117], 90.00th=[ 128], 95.00th=[ 138], | 99.00th=[ 161], 99.50th=[ 165], 99.90th=[ 184], 99.95th=[ 199], | 99.99th=[ 199] bw ( KiB/s): min= 220, max= 456, per=24.93%, avg=315.91, stdev=57.03, samples=32 iops : min= 55, max= 114, avg=78.66, stdev=14.15, samples=32 lat (msec) : 50=0.08%, 100=57.15%, 250=42.77% cpu : usr=0.31%, sys=2.66%, ctx=4694, 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=1218KiB/s (1247kB/s), 302KiB/s-308KiB/s (309kB/s-315kB/s), io=19.6MiB (20.5MB), run=16413-16479msec WRITE: bw=1268KiB/s (1298kB/s), 314KiB/s-319KiB/s (322kB/s-327kB/s), io=20.4MiB (21.4MB), run=16413-16479msec 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=179435: Sat Aug 15 19:23:23 2026 read: IOPS=3, BW=134MiB/s (140MB/s)(40.0MiB/299msec) slat (nsec): min=14350k, max=14350k, avg=14349711.00, stdev= 0.00 clat (nsec): min=268642k, max=268642k, avg=268641694.00, stdev= 0.00 lat (nsec): min=282996k, max=282996k, avg=282995937.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 271], 5.00th=[ 271], 10.00th=[ 271], 20.00th=[ 271], | 30.00th=[ 271], 40.00th=[ 271], 50.00th=[ 271], 60.00th=[ 271], | 70.00th=[ 271], 80.00th=[ 271], 90.00th=[ 271], 95.00th=[ 271], | 99.00th=[ 271], 99.50th=[ 271], 99.90th=[ 271], 99.95th=[ 271], | 99.99th=[ 271] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=4.03%, 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=134MiB/s (140MB/s), 134MiB/s-134MiB/s (140MB/s-140MB/s), io=40.0MiB (41.9MB), run=299-299msec 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