== sanity test 398c: run fio to test AIO ================= 06:07:25 (1787738845) /usr/bin/fio debug=0 40+0 records in 40+0 records out 41943040 bytes (42 MB, 40 MiB) copied, 0.591671 s, 70.9 MB/s osc.lustre-OST0000-osc-ffff9871c8194000.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=145737: Wed Aug 26 06:10:29 2026 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(10.0MiB/174656msec); 0 zone resets slat (usec): min=28, max=27565, avg=307.24, stdev=1195.66 clat (msec): min=53, max=2213, avg=1090.83, stdev=323.54 lat (msec): min=54, max=2214, avg=1091.14, stdev=323.58 clat percentiles (msec): | 1.00th=[ 259], 5.00th=[ 498], 10.00th=[ 726], 20.00th=[ 869], | 30.00th=[ 944], 40.00th=[ 1028], 50.00th=[ 1083], 60.00th=[ 1133], | 70.00th=[ 1217], 80.00th=[ 1334], 90.00th=[ 1502], 95.00th=[ 1636], | 99.00th=[ 1888], 99.50th=[ 1972], 99.90th=[ 2140], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 228, per=25.54%, avg=59.76, stdev=30.57, samples=336 iops : min= 1, max= 57, avg=14.41, stdev= 7.67, samples=336 lat (msec) : 100=0.04%, 250=0.90%, 500=4.18%, 750=5.90%, 1000=26.21% lat (msec) : 2000=62.34%, >=2000=0.43% cpu : usr=0.05%, sys=0.24%, ctx=2061, 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=145738: Wed Aug 26 06:10:29 2026 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(10.0MiB/174746msec); 0 zone resets slat (usec): min=27, max=23200, avg=321.44, stdev=1172.77 clat (msec): min=200, max=2185, avg=1090.87, stdev=327.20 lat (msec): min=200, max=2186, avg=1091.20, stdev=327.24 clat percentiles (msec): | 1.00th=[ 205], 5.00th=[ 527], 10.00th=[ 726], 20.00th=[ 844], | 30.00th=[ 944], 40.00th=[ 1020], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1502], 95.00th=[ 1687], | 99.00th=[ 1938], 99.50th=[ 1989], 99.90th=[ 2140], 99.95th=[ 2198], | 99.99th=[ 2198] bw ( KiB/s): min= 7, max= 222, per=24.86%, avg=58.18, stdev=31.74, samples=345 iops : min= 1, max= 55, avg=14.01, stdev= 7.98, samples=345 lat (msec) : 250=1.25%, 500=3.28%, 750=6.91%, 1000=25.47%, 2000=62.66% lat (msec) : >=2000=0.43% cpu : usr=0.06%, sys=0.26%, ctx=2035, 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=145739: Wed Aug 26 06:10:29 2026 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(10.0MiB/174746msec); 0 zone resets slat (usec): min=29, max=21808, avg=286.72, stdev=1060.67 clat (msec): min=201, max=2132, avg=1091.15, stdev=324.41 lat (msec): min=201, max=2133, avg=1091.44, stdev=324.39 clat percentiles (msec): | 1.00th=[ 317], 5.00th=[ 542], 10.00th=[ 718], 20.00th=[ 844], | 30.00th=[ 927], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1502], 95.00th=[ 1687], | 99.00th=[ 1938], 99.50th=[ 1989], 99.90th=[ 2072], 99.95th=[ 2106], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 224, per=25.18%, avg=58.92, stdev=31.21, samples=341 iops : min= 1, max= 56, avg=14.20, stdev= 7.82, samples=341 lat (msec) : 250=0.78%, 500=3.24%, 750=7.50%, 1000=27.19%, 2000=60.82% lat (msec) : >=2000=0.47% cpu : usr=0.05%, sys=0.23%, ctx=1921, 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=145740: Wed Aug 26 06:10:29 2026 write: IOPS=14, BW=58.6KiB/s (60.0kB/s)(10.0MiB/174655msec); 0 zone resets slat (usec): min=28, max=33990, avg=347.69, stdev=1475.91 clat (msec): min=187, max=2133, avg=1090.31, stdev=329.60 lat (msec): min=187, max=2134, avg=1090.66, stdev=329.64 clat percentiles (msec): | 1.00th=[ 279], 5.00th=[ 514], 10.00th=[ 709], 20.00th=[ 835], | 30.00th=[ 919], 40.00th=[ 1011], 50.00th=[ 1083], 60.00th=[ 1150], | 70.00th=[ 1234], 80.00th=[ 1334], 90.00th=[ 1536], 95.00th=[ 1653], | 99.00th=[ 1938], 99.50th=[ 2005], 99.90th=[ 2089], 99.95th=[ 2106], | 99.99th=[ 2140] bw ( KiB/s): min= 7, max= 208, per=25.03%, avg=58.56, stdev=29.20, samples=343 iops : min= 1, max= 52, avg=14.11, stdev= 7.31, samples=343 lat (msec) : 250=0.94%, 500=3.67%, 750=6.95%, 1000=27.11%, 2000=60.78% lat (msec) : >=2000=0.55% cpu : usr=0.05%, sys=0.26%, ctx=1999, 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=234KiB/s (240kB/s), 58.6KiB/s-58.6KiB/s (60.0kB/s-60.0kB/s), io=40.0MiB (41.9MB), run=174655-174746msec 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=145776: Wed Aug 26 06:12:25 2026 read: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5048KiB/106228msec) slat (usec): min=41, max=58042, avg=14219.39, stdev=7791.04 clat (msec): min=14, max=943, avg=414.98, stdev=114.66 lat (msec): min=19, max=952, avg=429.21, stdev=116.45 clat percentiles (msec): | 1.00th=[ 171], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 355], 40.00th=[ 380], 50.00th=[ 401], 60.00th=[ 426], | 70.00th=[ 456], 80.00th=[ 493], 90.00th=[ 567], 95.00th=[ 634], | 99.00th=[ 735], 99.50th=[ 785], 99.90th=[ 852], 99.95th=[ 944], | 99.99th=[ 944] bw ( KiB/s): min= 7, max= 119, per=25.31%, avg=47.58, stdev=21.41, samples=208 iops : min= 1, max= 29, avg=11.40, stdev= 5.39, samples=208 write: IOPS=12, BW=48.9KiB/s (50.0kB/s)(5192KiB/106228msec); 0 zone resets slat (usec): min=33, max=14352, avg=345.86, stdev=889.59 clat (msec): min=118, max=1814, avg=890.90, stdev=243.22 lat (msec): min=118, max=1814, avg=891.25, stdev=243.26 clat percentiles (msec): | 1.00th=[ 393], 5.00th=[ 527], 10.00th=[ 600], 20.00th=[ 693], | 30.00th=[ 768], 40.00th=[ 818], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 986], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1552], 99.50th=[ 1653], 99.90th=[ 1737], 99.95th=[ 1821], | 99.99th=[ 1821] bw ( KiB/s): min= 7, max= 127, per=24.79%, avg=48.34, stdev=22.00, samples=210 iops : min= 1, max= 31, avg=11.60, stdev= 5.53, samples=210 lat (msec) : 20=0.08%, 100=0.27%, 250=1.64%, 500=39.84%, 750=20.78% lat (msec) : 1000=22.77%, 2000=14.61% cpu : usr=0.11%, sys=0.77%, ctx=4903, 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=145777: Wed Aug 26 06:12:25 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(4976KiB/106606msec) slat (usec): min=3153, max=56561, avg=14845.87, stdev=7723.32 clat (msec): min=32, max=804, avg=415.25, stdev=108.18 lat (msec): min=45, max=822, avg=430.11, stdev=109.44 clat percentiles (msec): | 1.00th=[ 220], 5.00th=[ 268], 10.00th=[ 292], 20.00th=[ 326], | 30.00th=[ 351], 40.00th=[ 376], 50.00th=[ 401], 60.00th=[ 430], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 558], 95.00th=[ 625], | 99.00th=[ 718], 99.50th=[ 735], 99.90th=[ 768], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 7, max= 128, per=24.56%, avg=46.18, stdev=21.22, samples=211 iops : min= 1, max= 32, avg=11.05, stdev= 5.32, samples=211 write: IOPS=12, BW=49.4KiB/s (50.6kB/s)(5264KiB/106606msec); 0 zone resets slat (usec): min=34, max=17579, avg=345.10, stdev=974.01 clat (msec): min=227, max=1768, avg=887.46, stdev=248.37 lat (msec): min=227, max=1768, avg=887.81, stdev=248.42 clat percentiles (msec): | 1.00th=[ 330], 5.00th=[ 510], 10.00th=[ 575], 20.00th=[ 676], | 30.00th=[ 760], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1083], 90.00th=[ 1217], 95.00th=[ 1301], | 99.00th=[ 1552], 99.50th=[ 1670], 99.90th=[ 1770], 99.95th=[ 1770], | 99.99th=[ 1770] bw ( KiB/s): min= 7, max= 167, per=24.93%, avg=48.61, stdev=21.21, samples=212 iops : min= 1, max= 41, avg=11.66, stdev= 5.32, samples=212 lat (msec) : 50=0.08%, 100=0.08%, 250=1.25%, 500=39.80%, 750=21.80% lat (msec) : 1000=21.41%, 2000=15.59% cpu : usr=0.13%, sys=0.76%, ctx=4923, 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=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=145778: Wed Aug 26 06:12:25 2026 read: IOPS=11, BW=46.7KiB/s (47.8kB/s)(4984KiB/106687msec) slat (usec): min=3315, max=50886, avg=14290.94, stdev=7162.76 clat (msec): min=20, max=815, avg=417.69, stdev=110.75 lat (msec): min=27, max=830, avg=432.00, stdev=112.27 clat percentiles (msec): | 1.00th=[ 165], 5.00th=[ 275], 10.00th=[ 305], 20.00th=[ 334], | 30.00th=[ 359], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 460], 80.00th=[ 498], 90.00th=[ 575], 95.00th=[ 634], | 99.00th=[ 751], 99.50th=[ 776], 99.90th=[ 793], 99.95th=[ 818], | 99.99th=[ 818] bw ( KiB/s): min= 7, max= 119, per=24.92%, avg=46.86, stdev=21.96, samples=209 iops : min= 1, max= 29, avg=11.22, stdev= 5.54, samples=209 write: IOPS=12, BW=49.3KiB/s (50.4kB/s)(5256KiB/106687msec); 0 zone resets slat (usec): min=33, max=24598, avg=403.78, stdev=1209.45 clat (msec): min=150, max=1752, avg=887.16, stdev=249.54 lat (msec): min=150, max=1752, avg=887.57, stdev=249.58 clat percentiles (msec): | 1.00th=[ 321], 5.00th=[ 506], 10.00th=[ 584], 20.00th=[ 684], | 30.00th=[ 760], 40.00th=[ 810], 50.00th=[ 869], 60.00th=[ 927], | 70.00th=[ 995], 80.00th=[ 1099], 90.00th=[ 1217], 95.00th=[ 1318], | 99.00th=[ 1536], 99.50th=[ 1603], 99.90th=[ 1687], 99.95th=[ 1754], | 99.99th=[ 1754] bw ( KiB/s): min= 7, max= 135, per=24.81%, avg=48.38, stdev=21.29, samples=212 iops : min= 1, max= 33, avg=11.60, stdev= 5.32, samples=212 lat (msec) : 50=0.16%, 100=0.23%, 250=0.90%, 500=40.47%, 750=21.33% lat (msec) : 1000=21.76%, 2000=15.16% cpu : usr=0.13%, sys=0.78%, ctx=4691, 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=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=145779: Wed Aug 26 06:12:25 2026 read: IOPS=11, BW=47.5KiB/s (48.7kB/s)(5060KiB/106493msec) slat (msec): min=3, max=528, avg=14.83, stdev=20.99 clat (msec): min=23, max=1274, avg=416.29, stdev=118.94 lat (msec): min=37, max=1291, avg=431.13, stdev=120.90 clat percentiles (msec): | 1.00th=[ 190], 5.00th=[ 268], 10.00th=[ 296], 20.00th=[ 330], | 30.00th=[ 355], 40.00th=[ 376], 50.00th=[ 397], 60.00th=[ 426], | 70.00th=[ 451], 80.00th=[ 493], 90.00th=[ 567], 95.00th=[ 642], | 99.00th=[ 743], 99.50th=[ 844], 99.90th=[ 1150], 99.95th=[ 1267], | 99.99th=[ 1267] bw ( KiB/s): min= 7, max= 127, per=25.12%, avg=47.23, stdev=21.38, samples=210 iops : min= 1, max= 31, avg=11.31, stdev= 5.39, samples=210 write: IOPS=12, BW=48.6KiB/s (49.8kB/s)(5180KiB/106493msec); 0 zone resets slat (usec): min=28, max=23378, avg=424.33, stdev=1274.44 clat (msec): min=219, max=1800, avg=892.25, stdev=251.72 lat (msec): min=219, max=1803, avg=892.68, stdev=251.82 clat percentiles (msec): | 1.00th=[ 363], 5.00th=[ 510], 10.00th=[ 584], 20.00th=[ 676], | 30.00th=[ 760], 40.00th=[ 818], 50.00th=[ 877], 60.00th=[ 936], | 70.00th=[ 1003], 80.00th=[ 1099], 90.00th=[ 1234], 95.00th=[ 1318], | 99.00th=[ 1569], 99.50th=[ 1636], 99.90th=[ 1770], 99.95th=[ 1804], | 99.99th=[ 1804] bw ( KiB/s): min= 8, max= 143, per=24.88%, avg=48.51, stdev=20.94, samples=209 iops : min= 2, max= 35, avg=11.64, stdev= 5.26, samples=209 lat (msec) : 50=0.08%, 100=0.31%, 250=1.25%, 500=40.86%, 750=20.98% lat (msec) : 1000=21.02%, 2000=15.51% cpu : usr=0.11%, sys=0.74%, ctx=4759, 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 (193kB/s), 46.7KiB/s-47.5KiB/s (47.8kB/s-48.7kB/s), io=19.6MiB (20.5MB), run=106228-106687msec WRITE: bw=196KiB/s (201kB/s), 48.6KiB/s-49.4KiB/s (49.8kB/s-50.6kB/s), io=20.4MiB (21.4MB), run=106228-106687msec 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=145799: Wed Aug 26 06:12:35 2026 read: IOPS=1, BW=64.7MiB/s (67.9MB/s)(40.0MiB/618msec) slat (nsec): min=70259k, max=70259k, avg=70258950.00, stdev= 0.00 clat (nsec): min=494406k, max=494406k, avg=494405811.00, stdev= 0.00 lat (nsec): min=564695k, max=564695k, avg=564695381.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 493], 5.00th=[ 493], 10.00th=[ 493], 20.00th=[ 493], | 30.00th=[ 493], 40.00th=[ 493], 50.00th=[ 493], 60.00th=[ 493], | 70.00th=[ 493], 80.00th=[ 493], 90.00th=[ 493], 95.00th=[ 493], | 99.00th=[ 493], 99.50th=[ 493], 99.90th=[ 493], 99.95th=[ 493], | 99.99th=[ 493] lat (msec) : 500=100.00% cpu : usr=0.16%, sys=2.75%, ctx=44, 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=64.7MiB/s (67.9MB/s), 64.7MiB/s-64.7MiB/s (67.9MB/s-67.9MB/s), io=40.0MiB (41.9MB), run=618-618msec 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