== sanity test 124b: lru resize (performance test) ================================================================================= 00:40:37 (1788842437)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 990 (time 1788842451.37 total 10.01 last 98.90)
 - open/close 1809 (time 1788842461.37 total 20.01 last 81.89)
 - open/close 2567 (time 1788842471.37 total 30.01 last 75.79)
 - open/close 3533 (time 1788842481.37 total 40.02 last 96.57)
 - open/close 4465 (time 1788842491.38 total 50.02 last 93.16)
 - open/close 5411 (time 1788842501.39 total 60.04 last 94.45)
 - open/close 6224 (time 1788842511.40 total 70.04 last 81.26)
 - open/close 7189 (time 1788842521.41 total 80.05 last 96.36)
total: 8000 open/close in 88.79 seconds: 90.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 138 seconds
lru_size = 400
400
 - unlinked 0 (time 1788842679 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 940 (time 1788842785.15 total 10.00 last 93.98)
 - open/close 1920 (time 1788842795.16 total 20.01 last 97.94)
 - open/close 2793 (time 1788842805.17 total 30.02 last 87.18)
 - open/close 3614 (time 1788842815.18 total 40.03 last 82.04)
 - open/close 4479 (time 1788842825.19 total 50.04 last 86.39)
 - open/close 5362 (time 1788842835.19 total 60.05 last 88.25)
 - open/close 6224 (time 1788842845.20 total 70.05 last 86.19)
 - open/close 7231 (time 1788842855.20 total 80.06 last 100.63)
total: 8000 open/close in 87.94 seconds: 90.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 82 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788842961 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second