== sanity test 398c: run fio to test AIO ================= 08:20:31 (1789129231) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.497666 s, 84.3 MB/s osc.lustre-OST0000-osc-ffff99fa00566000.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=180820: Fri Sep 11 08:21:07 2026 write: IOPS=94, BW=380KiB/s (389kB/s)(10.0MiB/26963msec); 0 zone resets slat (usec): min=24, max=17606, avg=194.39, stdev=745.46 clat (msec): min=33, max=297, avg=167.78, stdev=37.31 lat (msec): min=33, max=297, avg=167.98, stdev=37.34 clat percentiles (msec): | 1.00th=[ 69], 5.00th=[ 101], 10.00th=[ 121], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 161], 50.00th=[ 167], 60.00th=[ 180], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 211], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 271], 99.90th=[ 292], 99.95th=[ 296], | 99.99th=[ 296] bw ( KiB/s): min= 253, max= 594, per=24.97%, avg=378.74, stdev=72.40, samples=53 iops : min= 63, max= 148, avg=94.34, stdev=18.05, samples=53 lat (msec) : 50=0.08%, 100=4.96%, 250=93.44%, 500=1.52% cpu : usr=0.17%, sys=0.89%, ctx=2712, 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=180821: Fri Sep 11 08:21:07 2026 write: IOPS=94, BW=379KiB/s (388kB/s)(10.0MiB/26995msec); 0 zone resets slat (usec): min=27, max=7972, avg=177.49, stdev=545.67 clat (msec): min=68, max=279, avg=168.04, stdev=37.65 lat (msec): min=69, max=279, avg=168.22, stdev=37.65 clat percentiles (msec): | 1.00th=[ 71], 5.00th=[ 103], 10.00th=[ 122], 20.00th=[ 140], | 30.00th=[ 148], 40.00th=[ 159], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 232], | 99.00th=[ 268], 99.50th=[ 275], 99.90th=[ 279], 99.95th=[ 279], | 99.99th=[ 279] bw ( KiB/s): min= 253, max= 593, per=24.97%, avg=378.85, stdev=73.95, samples=53 iops : min= 63, max= 148, avg=94.38, stdev=18.45, samples=53 lat (msec) : 100=4.96%, 250=93.24%, 500=1.80% cpu : usr=0.19%, sys=0.85%, ctx=2382, 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=180822: Fri Sep 11 08:21:07 2026 write: IOPS=95, BW=382KiB/s (391kB/s)(10.0MiB/26817msec); 0 zone resets slat (usec): min=22, max=19360, avg=218.94, stdev=871.64 clat (msec): min=26, max=321, avg=167.19, stdev=38.51 lat (msec): min=26, max=321, avg=167.41, stdev=38.50 clat percentiles (msec): | 1.00th=[ 75], 5.00th=[ 103], 10.00th=[ 121], 20.00th=[ 138], | 30.00th=[ 148], 40.00th=[ 157], 50.00th=[ 169], 60.00th=[ 178], | 70.00th=[ 188], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 228], | 99.00th=[ 266], 99.50th=[ 279], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 245, max= 637, per=25.09%, avg=380.66, stdev=76.79, samples=53 iops : min= 61, max= 159, avg=94.85, stdev=19.16, samples=53 lat (msec) : 50=0.16%, 100=4.45%, 250=93.12%, 500=2.27% cpu : usr=0.16%, sys=1.04%, ctx=2695, 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=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=180823: Fri Sep 11 08:21:07 2026 write: IOPS=94, BW=379KiB/s (388kB/s)(10.0MiB/26992msec); 0 zone resets slat (usec): min=31, max=15484, avg=214.19, stdev=752.93 clat (msec): min=74, max=288, avg=167.80, stdev=36.03 lat (msec): min=74, max=288, avg=168.02, stdev=36.02 clat percentiles (msec): | 1.00th=[ 85], 5.00th=[ 109], 10.00th=[ 122], 20.00th=[ 138], | 30.00th=[ 150], 40.00th=[ 159], 50.00th=[ 167], 60.00th=[ 178], | 70.00th=[ 186], 80.00th=[ 197], 90.00th=[ 213], 95.00th=[ 230], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 288], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 253, max= 520, per=24.85%, avg=377.02, stdev=68.98, samples=53 iops : min= 63, max= 130, avg=93.92, stdev=17.23, samples=53 lat (msec) : 100=3.16%, 250=95.39%, 500=1.45% cpu : usr=0.20%, sys=0.87%, ctx=2759, 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=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=1517KiB/s (1554kB/s), 379KiB/s-382KiB/s (388kB/s-391kB/s), io=40.0MiB (41.9MB), run=26817-26995msec 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=180837: Fri Sep 11 08:21:43 2026 read: IOPS=47, BW=190KiB/s (194kB/s)(5048KiB/26597msec) slat (usec): min=2629, max=43003, avg=11267.23, stdev=5880.74 clat (msec): min=29, max=321, avg=159.16, stdev=34.40 lat (msec): min=36, max=330, avg=170.43, stdev=35.16 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 108], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 140], 40.00th=[ 150], 50.00th=[ 157], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 259], 99.50th=[ 268], 99.90th=[ 305], 99.95th=[ 321], | 99.99th=[ 321] bw ( KiB/s): min= 99, max= 279, per=25.11%, avg=189.33, stdev=37.88, samples=52 iops : min= 24, max= 69, avg=46.90, stdev= 9.54, samples=52 write: IOPS=48, BW=195KiB/s (200kB/s)(5192KiB/26597msec); 0 zone resets slat (usec): min=37, max=6880, avg=214.92, stdev=534.96 clat (msec): min=48, max=299, avg=159.44, stdev=32.84 lat (msec): min=48, max=299, avg=159.66, stdev=32.83 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 111], 10.00th=[ 121], 20.00th=[ 131], | 30.00th=[ 142], 40.00th=[ 148], 50.00th=[ 159], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 201], 95.00th=[ 215], | 99.00th=[ 259], 99.50th=[ 271], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 99, max= 318, per=24.97%, avg=196.02, stdev=39.88, samples=52 iops : min= 24, max= 79, avg=48.60, stdev=10.07, samples=52 lat (msec) : 50=0.08%, 100=1.88%, 250=96.80%, 500=1.25% cpu : usr=0.27%, sys=1.69%, ctx=4848, 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=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=180838: Fri Sep 11 08:21:43 2026 read: IOPS=46, BW=187KiB/s (192kB/s)(4976KiB/26600msec) slat (usec): min=2531, max=53712, avg=11323.29, stdev=5909.39 clat (msec): min=56, max=347, avg=156.63, stdev=33.69 lat (msec): min=68, max=363, avg=167.96, stdev=34.51 clat percentiles (msec): | 1.00th=[ 91], 5.00th=[ 108], 10.00th=[ 115], 20.00th=[ 128], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 163], | 70.00th=[ 171], 80.00th=[ 184], 90.00th=[ 199], 95.00th=[ 211], | 99.00th=[ 255], 99.50th=[ 268], 99.90th=[ 326], 99.95th=[ 347], | 99.99th=[ 347] bw ( KiB/s): min= 84, max= 272, per=24.74%, avg=186.54, stdev=39.82, samples=52 iops : min= 21, max= 68, avg=46.23, stdev= 9.98, samples=52 write: IOPS=49, BW=198KiB/s (203kB/s)(5264KiB/26600msec); 0 zone resets slat (usec): min=34, max=16598, avg=236.47, stdev=735.71 clat (msec): min=85, max=331, avg=162.45, stdev=32.07 lat (msec): min=85, max=331, avg=162.69, stdev=32.06 clat percentiles (msec): | 1.00th=[ 103], 5.00th=[ 115], 10.00th=[ 125], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 247], 99.50th=[ 257], 99.90th=[ 313], 99.95th=[ 334], | 99.99th=[ 334] bw ( KiB/s): min= 128, max= 310, per=25.36%, avg=199.06, stdev=38.46, samples=52 iops : min= 32, max= 77, avg=49.37, stdev= 9.65, samples=52 lat (msec) : 100=1.64%, 250=97.27%, 500=1.09% cpu : usr=0.21%, sys=1.79%, ctx=4554, 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=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=180839: Fri Sep 11 08:21:43 2026 read: IOPS=46, BW=188KiB/s (192kB/s)(4984KiB/26578msec) slat (usec): min=2546, max=40658, avg=11249.82, stdev=5713.05 clat (msec): min=55, max=392, avg=158.25, stdev=34.17 lat (msec): min=67, max=407, avg=169.50, stdev=34.95 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 109], 10.00th=[ 118], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 176], 80.00th=[ 186], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 243], 99.50th=[ 251], 99.90th=[ 284], 99.95th=[ 393], | 99.99th=[ 393] bw ( KiB/s): min= 107, max= 312, per=24.98%, avg=188.35, stdev=40.27, samples=52 iops : min= 26, max= 78, avg=46.67, stdev=10.17, samples=52 write: IOPS=49, BW=198KiB/s (203kB/s)(5256KiB/26578msec); 0 zone resets slat (usec): min=34, max=6690, avg=193.62, stdev=475.05 clat (msec): min=61, max=360, avg=161.08, stdev=32.94 lat (msec): min=61, max=360, avg=161.28, stdev=32.92 clat percentiles (msec): | 1.00th=[ 100], 5.00th=[ 112], 10.00th=[ 122], 20.00th=[ 133], | 30.00th=[ 142], 40.00th=[ 150], 50.00th=[ 159], 60.00th=[ 167], | 70.00th=[ 178], 80.00th=[ 188], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 249], 99.50th=[ 262], 99.90th=[ 313], 99.95th=[ 359], | 99.99th=[ 359] bw ( KiB/s): min= 111, max= 300, per=25.21%, avg=197.87, stdev=42.51, samples=52 iops : min= 27, max= 75, avg=49.06, stdev=10.67, samples=52 lat (msec) : 100=1.64%, 250=97.58%, 500=0.78% cpu : usr=0.29%, sys=1.89%, ctx=4591, 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=180840: Fri Sep 11 08:21:43 2026 read: IOPS=47, BW=190KiB/s (195kB/s)(5060KiB/26595msec) slat (usec): min=38, max=45490, avg=11287.96, stdev=6061.59 clat (msec): min=37, max=287, avg=157.79, stdev=33.71 lat (msec): min=44, max=301, avg=169.09, stdev=34.78 clat percentiles (msec): | 1.00th=[ 92], 5.00th=[ 111], 10.00th=[ 120], 20.00th=[ 130], | 30.00th=[ 138], 40.00th=[ 146], 50.00th=[ 155], 60.00th=[ 165], | 70.00th=[ 174], 80.00th=[ 186], 90.00th=[ 203], 95.00th=[ 220], | 99.00th=[ 249], 99.50th=[ 266], 99.90th=[ 279], 99.95th=[ 288], | 99.99th=[ 288] bw ( KiB/s): min= 127, max= 276, per=25.24%, avg=190.35, stdev=35.96, samples=52 iops : min= 31, max= 69, avg=47.17, stdev= 9.05, samples=52 write: IOPS=48, BW=195KiB/s (199kB/s)(5180KiB/26595msec); 0 zone resets slat (usec): min=36, max=10219, avg=199.92, stdev=532.96 clat (msec): min=53, max=300, avg=162.78, stdev=32.51 lat (msec): min=53, max=300, avg=162.98, stdev=32.48 clat percentiles (msec): | 1.00th=[ 97], 5.00th=[ 113], 10.00th=[ 126], 20.00th=[ 136], | 30.00th=[ 144], 40.00th=[ 153], 50.00th=[ 161], 60.00th=[ 169], | 70.00th=[ 180], 80.00th=[ 190], 90.00th=[ 205], 95.00th=[ 220], | 99.00th=[ 249], 99.50th=[ 262], 99.90th=[ 296], 99.95th=[ 300], | 99.99th=[ 300] bw ( KiB/s): min= 111, max= 288, per=24.81%, avg=194.75, stdev=37.73, samples=52 iops : min= 27, max= 72, avg=48.29, stdev= 9.50, samples=52 lat (msec) : 50=0.04%, 100=1.56%, 250=97.54%, 500=0.86% cpu : usr=0.25%, sys=1.80%, ctx=4828, 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=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=754KiB/s (773kB/s), 187KiB/s-190KiB/s (192kB/s-195kB/s), io=19.6MiB (20.5MB), run=26578-26600msec WRITE: bw=785KiB/s (804kB/s), 195KiB/s-198KiB/s (199kB/s-203kB/s), io=20.4MiB (21.4MB), run=26578-26600msec 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=180849: Fri Sep 11 08:21:53 2026 read: IOPS=2, BW=88.3MiB/s (92.6MB/s)(40.0MiB/453msec) slat (nsec): min=31424k, max=31424k, avg=31424336.00, stdev= 0.00 clat (nsec): min=389502k, max=389502k, avg=389501634.00, stdev= 0.00 lat (nsec): min=420930k, max=420930k, avg=420929943.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 388], 5.00th=[ 388], 10.00th=[ 388], 20.00th=[ 388], | 30.00th=[ 388], 40.00th=[ 388], 50.00th=[ 388], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] lat (msec) : 500=100.00% cpu : usr=0.00%, sys=2.88%, ctx=4, majf=0, minf=7 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=88.3MiB/s (92.6MB/s), 88.3MiB/s-88.3MiB/s (92.6MB/s-92.6MB/s), io=40.0MiB (41.9MB), run=453-453msec 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