== sanity test 124b: lru resize (performance test) ================================================================================= 04:01:41 (1789027301)
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 876 (time 1789027316.31 total 10.01 last 87.52)
 - open/close 1820 (time 1789027326.31 total 20.01 last 94.35)
 - open/close 2807 (time 1789027336.33 total 30.03 last 98.59)
 - open/close 3662 (time 1789027346.33 total 40.03 last 85.43)
 - open/close 4515 (time 1789027356.35 total 50.05 last 85.19)
 - open/close 5289 (time 1789027366.36 total 60.06 last 77.29)
 - open/close 6096 (time 1789027376.37 total 70.07 last 80.64)
 - open/close 6914 (time 1789027386.37 total 80.07 last 81.77)
 - open/close 7830 (time 1789027396.38 total 90.08 last 91.55)
total: 8000 open/close in 91.98 seconds: 86.98 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 139 seconds
lru_size = 400
400
 - unlinked 0 (time 1789027549 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1007 (time 1789027657.24 total 10.01 last 100.59)
 - open/close 1968 (time 1789027667.25 total 20.02 last 95.97)
 - open/close 2833 (time 1789027677.25 total 30.03 last 86.49)
 - open/close 3600 (time 1789027687.26 total 40.04 last 76.62)
 - open/close 4218 (time 1789027697.29 total 50.07 last 61.62)
 - open/close 5098 (time 1789027707.30 total 60.07 last 87.95)
 - open/close 5954 (time 1789027717.30 total 70.07 last 85.58)
 - open/close 6723 (time 1789027727.30 total 80.07 last 76.88)
 - open/close 7569 (time 1789027737.32 total 90.09 last 84.46)
total: 8000 open/close in 95.64 seconds: 83.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 4052
3955
ls -la is 33% faster with lru resize enabled
 - unlinked 0 (time 1789027858 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second