== sanity test 398c: run fio to test AIO ================= 07:37:10 (1787830630) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.487938 s, 86.0 MB/s osc.lustre-OST0000-osc-ffff89d4d19de000.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=145402: Thu Aug 27 07:40:18 2026 write: IOPS=14, BW=57.7KiB/s (59.1kB/s)(10.0MiB/177430msec); 0 zone resets slat (usec): min=29, max=23468, avg=199.14, stdev=904.02 clat (msec): min=157, max=2339, avg=1108.11, stdev=322.41 lat (msec): min=157, max=2339, avg=1108.31, stdev=322.48 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 659], 10.00th=[ 743], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 995], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1368], 90.00th=[ 1519], 95.00th=[ 1653], | 99.00th=[ 1989], 99.50th=[ 2165], 99.90th=[ 2299], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 221, per=25.28%, avg=58.15, stdev=28.72, samples=346 iops : min= 1, max= 55, avg=14.11, stdev= 7.23, samples=346 lat (msec) : 250=0.62%, 500=1.52%, 750=8.48%, 1000=29.73%, 2000=58.67% lat (msec) : >=2000=0.98% cpu : usr=0.03%, sys=0.18%, ctx=1764, 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=145403: Thu Aug 27 07:40:18 2026 write: IOPS=14, BW=57.6KiB/s (59.0kB/s)(10.0MiB/177697msec); 0 zone resets slat (usec): min=27, max=19175, avg=183.55, stdev=757.26 clat (msec): min=203, max=2388, avg=1109.49, stdev=323.11 lat (msec): min=203, max=2388, avg=1109.68, stdev=323.14 clat percentiles (msec): | 1.00th=[ 334], 5.00th=[ 659], 10.00th=[ 751], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 1003], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1368], 90.00th=[ 1552], 95.00th=[ 1687], | 99.00th=[ 1989], 99.50th=[ 2140], 99.90th=[ 2333], 99.95th=[ 2400], | 99.99th=[ 2400] bw ( KiB/s): min= 8, max= 128, per=25.37%, avg=58.36, stdev=26.13, samples=345 iops : min= 2, max= 32, avg=14.16, stdev= 6.57, samples=345 lat (msec) : 250=0.62%, 500=0.78%, 750=8.83%, 1000=29.88%, 2000=59.06% lat (msec) : >=2000=0.82% cpu : usr=0.04%, sys=0.16%, ctx=1696, 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=145404: Thu Aug 27 07:40:18 2026 write: IOPS=14, BW=57.7KiB/s (59.1kB/s)(10.0MiB/177569msec); 0 zone resets slat (usec): min=28, max=18938, avg=188.46, stdev=874.91 clat (msec): min=111, max=2172, avg=1108.61, stdev=323.36 lat (msec): min=113, max=2172, avg=1108.80, stdev=323.42 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 634], 10.00th=[ 751], 20.00th=[ 844], | 30.00th=[ 911], 40.00th=[ 995], 50.00th=[ 1083], 60.00th=[ 1167], | 70.00th=[ 1267], 80.00th=[ 1368], 90.00th=[ 1519], 95.00th=[ 1653], | 99.00th=[ 2056], 99.50th=[ 2165], 99.90th=[ 2165], 99.95th=[ 2165], | 99.99th=[ 2165] bw ( KiB/s): min= 7, max= 128, per=25.60%, avg=58.88, stdev=30.01, samples=342 iops : min= 1, max= 32, avg=14.29, stdev= 7.53, samples=342 lat (msec) : 250=0.62%, 500=0.74%, 750=8.63%, 1000=30.39%, 2000=58.28% lat (msec) : >=2000=1.33% cpu : usr=0.03%, sys=0.17%, ctx=1693, 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=145405: Thu Aug 27 07:40:18 2026 write: IOPS=14, BW=57.6KiB/s (58.0kB/s)(10.0MiB/177810msec); 0 zone resets slat (usec): min=28, max=22108, avg=218.80, stdev=1066.50 clat (msec): min=85, max=2322, avg=1110.14, stdev=318.97 lat (msec): min=85, max=2322, avg=1110.36, stdev=319.04 clat percentiles (msec): | 1.00th=[ 418], 5.00th=[ 651], 10.00th=[ 735], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1099], 60.00th=[ 1150], | 70.00th=[ 1250], 80.00th=[ 1368], 90.00th=[ 1536], 95.00th=[ 1653], | 99.00th=[ 2005], 99.50th=[ 2123], 99.90th=[ 2333], 99.95th=[ 2333], | 99.99th=[ 2333] bw ( KiB/s): min= 7, max= 143, per=26.14%, avg=60.12, stdev=32.65, samples=335 iops : min= 1, max= 35, avg=14.60, stdev= 8.19, samples=335 lat (msec) : 100=0.04%, 250=0.12%, 500=1.37%, 750=9.45%, 1000=28.55% lat (msec) : 2000=59.45%, >=2000=1.02% cpu : usr=0.03%, sys=0.21%, ctx=1828, 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=230KiB/s (236kB/s), 57.6KiB/s-57.7KiB/s (58.0kB/s-59.1kB/s), io=40.0MiB (41.9MB), run=177430-177810msec 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=145440: Thu Aug 27 07:42:14 2026 read: IOPS=11, BW=47.4KiB/s (48.5kB/s)(5048KiB/106584msec) slat (usec): min=2662, max=63962, avg=12956.62, stdev=7732.66 clat (msec): min=9, max=875, avg=412.06, stdev=117.39 lat (msec): min=17, max=895, avg=425.02, stdev=119.20 clat percentiles (msec): | 1.00th=[ 150], 5.00th=[ 239], 10.00th=[ 275], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 372], 50.00th=[ 405], 60.00th=[ 435], | 70.00th=[ 464], 80.00th=[ 506], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 743], 99.50th=[ 768], 99.90th=[ 860], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 7, max= 152, per=25.26%, avg=47.24, stdev=21.76, samples=210 iops : min= 1, max= 38, avg=11.35, stdev= 5.45, samples=210 write: IOPS=12, BW=48.7KiB/s (49.9kB/s)(5192KiB/106584msec); 0 zone resets slat (usec): min=33, max=13537, avg=229.38, stdev=734.70 clat (msec): min=222, max=1729, avg=895.91, stdev=253.82 lat (msec): min=222, max=1730, avg=896.15, stdev=253.83 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 493], 10.00th=[ 575], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 827], 50.00th=[ 894], 60.00th=[ 953], | 70.00th=[ 1020], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1620], 99.90th=[ 1720], 99.95th=[ 1737], | 99.99th=[ 1737] bw ( KiB/s): min= 7, max= 150, per=24.72%, avg=48.20, stdev=21.79, samples=211 iops : min= 1, max= 37, avg=11.58, stdev= 5.51, samples=211 lat (msec) : 10=0.04%, 20=0.04%, 50=0.04%, 100=0.16%, 250=2.93% lat (msec) : 500=38.52%, 750=21.41%, 1000=20.47%, 2000=16.41% cpu : usr=0.10%, sys=0.59%, ctx=4910, 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=145441: Thu Aug 27 07:42:14 2026 read: IOPS=11, BW=46.6KiB/s (47.7kB/s)(4976KiB/106760msec) slat (usec): min=2589, max=63319, avg=13164.93, stdev=7725.57 clat (msec): min=25, max=831, avg=411.46, stdev=111.84 lat (msec): min=40, max=840, avg=424.64, stdev=113.39 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 249], 10.00th=[ 275], 20.00th=[ 321], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 464], 80.00th=[ 506], 90.00th=[ 550], 95.00th=[ 609], | 99.00th=[ 735], 99.50th=[ 760], 99.90th=[ 793], 99.95th=[ 835], | 99.99th=[ 835] bw ( KiB/s): min= 7, max= 111, per=24.72%, avg=46.22, stdev=20.52, samples=211 iops : min= 1, max= 27, avg=11.09, stdev= 5.16, samples=211 write: IOPS=12, BW=49.3KiB/s (50.5kB/s)(5264KiB/106760msec); 0 zone resets slat (usec): min=37, max=10135, avg=217.64, stdev=690.19 clat (msec): min=221, max=1775, avg=892.18, stdev=255.00 lat (msec): min=221, max=1775, avg=892.40, stdev=255.00 clat percentiles (msec): | 1.00th=[ 288], 5.00th=[ 447], 10.00th=[ 575], 20.00th=[ 693], | 30.00th=[ 776], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1020], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1469], 99.50th=[ 1620], 99.90th=[ 1703], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 158, per=25.04%, avg=48.83, stdev=22.77, samples=211 iops : min= 1, max= 39, avg=11.74, stdev= 5.74, samples=211 lat (msec) : 50=0.04%, 100=0.08%, 250=2.58%, 500=39.18%, 750=20.31% lat (msec) : 1000=21.02%, 2000=16.80% cpu : usr=0.09%, sys=0.54%, ctx=4877, 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=145442: Thu Aug 27 07:42:14 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(4984KiB/106723msec) slat (usec): min=2396, max=52626, avg=12775.33, stdev=7305.24 clat (msec): min=14, max=867, avg=410.13, stdev=121.33 lat (msec): min=19, max=908, avg=422.91, stdev=122.94 clat percentiles (msec): | 1.00th=[ 148], 5.00th=[ 226], 10.00th=[ 268], 20.00th=[ 313], | 30.00th=[ 338], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 430], | 70.00th=[ 464], 80.00th=[ 502], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 760], 99.50th=[ 785], 99.90th=[ 860], 99.95th=[ 869], | 99.99th=[ 869] bw ( KiB/s): min= 7, max= 152, per=24.96%, avg=46.68, stdev=23.30, samples=210 iops : min= 1, max= 38, avg=11.20, stdev= 5.89, samples=210 write: IOPS=12, BW=49.2KiB/s (50.4kB/s)(5256KiB/106723msec); 0 zone resets slat (usec): min=33, max=9804, avg=199.86, stdev=501.40 clat (msec): min=125, max=1766, avg=894.24, stdev=249.74 lat (msec): min=125, max=1766, avg=894.44, stdev=249.74 clat percentiles (msec): | 1.00th=[ 292], 5.00th=[ 460], 10.00th=[ 584], 20.00th=[ 693], | 30.00th=[ 776], 40.00th=[ 844], 50.00th=[ 902], 60.00th=[ 961], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1217], 95.00th=[ 1284], | 99.00th=[ 1435], 99.50th=[ 1620], 99.90th=[ 1737], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 128, per=24.93%, avg=48.61, stdev=21.17, samples=211 iops : min= 1, max= 32, avg=11.69, stdev= 5.32, samples=211 lat (msec) : 20=0.04%, 50=0.04%, 100=0.23%, 250=3.63%, 500=38.09% lat (msec) : 750=19.73%, 1000=21.05%, 2000=17.19% cpu : usr=0.08%, sys=0.51%, ctx=4575, 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=145443: Thu Aug 27 07:42:14 2026 read: IOPS=11, BW=47.6KiB/s (48.7kB/s)(5060KiB/106409msec) slat (usec): min=43, max=59082, avg=12278.69, stdev=7256.80 clat (msec): min=13, max=1253, avg=411.39, stdev=129.47 lat (msec): min=18, max=1260, avg=423.68, stdev=131.26 clat percentiles (msec): | 1.00th=[ 90], 5.00th=[ 226], 10.00th=[ 264], 20.00th=[ 309], | 30.00th=[ 338], 40.00th=[ 376], 50.00th=[ 405], 60.00th=[ 435], | 70.00th=[ 472], 80.00th=[ 514], 90.00th=[ 567], 95.00th=[ 625], | 99.00th=[ 760], 99.50th=[ 844], 99.90th=[ 1116], 99.95th=[ 1250], | 99.99th=[ 1250] bw ( KiB/s): min= 7, max= 126, per=25.32%, avg=47.35, stdev=20.55, samples=210 iops : min= 1, max= 31, avg=11.37, stdev= 5.15, samples=210 write: IOPS=12, BW=48.7KiB/s (49.8kB/s)(5180KiB/106409msec); 0 zone resets slat (usec): min=34, max=24628, avg=271.32, stdev=1067.29 clat (msec): min=170, max=1862, avg=899.41, stdev=258.21 lat (msec): min=170, max=1862, avg=899.68, stdev=258.18 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 481], 10.00th=[ 567], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 835], 50.00th=[ 885], 60.00th=[ 953], | 70.00th=[ 1028], 80.00th=[ 1116], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1519], 99.50th=[ 1703], 99.90th=[ 1871], 99.95th=[ 1871], | 99.99th=[ 1871] bw ( KiB/s): min= 7, max= 136, per=24.85%, avg=48.46, stdev=20.94, samples=209 iops : min= 1, max= 34, avg=11.65, stdev= 5.30, samples=209 lat (msec) : 20=0.08%, 50=0.23%, 100=0.20%, 250=3.48%, 500=37.27% lat (msec) : 750=21.33%, 1000=20.62%, 2000=16.80% cpu : usr=0.09%, sys=0.55%, ctx=4888, 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=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=188KiB/s (192kB/s), 46.6KiB/s-47.6KiB/s (47.7kB/s-48.7kB/s), io=19.6MiB (20.5MB), run=106409-106760msec WRITE: bw=196KiB/s (200kB/s), 48.7KiB/s-49.3KiB/s (49.8kB/s-50.5kB/s), io=20.4MiB (21.4MB), run=106409-106760msec 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=145462: Thu Aug 27 07:42:23 2026 read: IOPS=1, BW=71.0MiB/s (74.5MB/s)(40.0MiB/563msec) slat (nsec): min=34786k, max=34786k, avg=34786371.00, stdev= 0.00 clat (nsec): min=511736k, max=511736k, avg=511735774.00, stdev= 0.00 lat (nsec): min=546527k, max=546527k, avg=546526579.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 514], | 70.00th=[ 514], 80.00th=[ 514], 90.00th=[ 514], 95.00th=[ 514], | 99.00th=[ 514], 99.50th=[ 514], 99.90th=[ 514], 99.95th=[ 514], | 99.99th=[ 514] lat (msec) : 750=100.00% cpu : usr=0.00%, sys=1.96%, ctx=44, majf=0, minf=8 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=71.0MiB/s (74.5MB/s), 71.0MiB/s-71.0MiB/s (74.5MB/s-74.5MB/s), io=40.0MiB (41.9MB), run=563-563msec 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