== sanity test 124b: lru resize (performance test) ================================================================================= 04:19:15 (1787127555)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 451 (time 1787127571.24 total 10.02 last 45.00)
 - open/close 821 (time 1787127581.24 total 20.02 last 37.00)
 - open/close 1390 (time 1787127591.24 total 30.02 last 56.89)
 - open/close 1936 (time 1787127601.24 total 40.03 last 54.59)
 - open/close 2439 (time 1787127611.27 total 50.05 last 50.16)
 - open/close 3020 (time 1787127621.27 total 60.05 last 58.10)
 - open/close 3638 (time 1787127631.28 total 70.06 last 61.75)
 - open/close 4192 (time 1787127641.29 total 80.08 last 55.32)
 - open/close 4759 (time 1787127651.30 total 90.09 last 56.64)
 - open/close 5344 (time 1787127661.31 total 100.09 last 58.48)
 - open/close 5961 (time 1787127671.31 total 110.09 last 61.68)
 - open/close 6581 (time 1787127681.32 total 120.11 last 61.91)
 - open/close 7210 (time 1787127691.33 total 130.12 last 62.85)
 - open/close 7795 (time 1787127701.34 total 140.13 last 58.44)
total: 8000 open/close in 143.40 seconds: 55.79 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 188 seconds
lru_size = 400
400
 - unlinked 0 (time 1787127902 ; total 0 ; last 0)
total: 8000 unlinks in 131 seconds: 61.068703 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 667 (time 1787128048.38 total 10.00 last 66.67)
 - open/close 1300 (time 1787128058.38 total 20.01 last 63.27)
 - open/close 1904 (time 1787128068.39 total 30.02 last 60.35)
 - open/close 2518 (time 1787128078.40 total 40.02 last 61.37)
 - open/close 3174 (time 1787128088.41 total 50.03 last 65.55)
 - open/close 3752 (time 1787128098.41 total 60.04 last 57.76)
 - open/close 4361 (time 1787128108.45 total 70.07 last 60.71)
 - open/close 4912 (time 1787128118.45 total 80.08 last 55.07)
 - open/close 5574 (time 1787128128.45 total 90.08 last 66.19)
 - open/close 6209 (time 1787128138.46 total 100.08 last 63.46)
 - open/close 6852 (time 1787128148.47 total 110.09 last 64.25)
 - open/close 7491 (time 1787128158.47 total 120.09 last 63.89)
total: 8000 open/close in 127.90 seconds: 62.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1787128288 ; total 0 ; last 0)
total: 8000 unlinks in 75 seconds: 106.666664 unlinks/second