== sanity test 124b: lru resize (performance test) ================================================================================= 15:23:31 (1780341811)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 945 (time 1780341825.08 total 10.00 last 94.50)
 - open/close 1802 (time 1780341835.08 total 20.00 last 85.69)
 - open/close 2653 (time 1780341845.09 total 30.01 last 85.06)
 - open/close 3518 (time 1780341855.09 total 40.01 last 86.48)
 - open/close 4364 (time 1780341865.09 total 50.01 last 84.58)
 - open/close 5192 (time 1780341875.09 total 60.01 last 82.78)
 - open/close 6080 (time 1780341885.10 total 70.02 last 88.71)
 - open/close 6945 (time 1780341895.10 total 80.02 last 86.50)
 - open/close 7828 (time 1780341905.11 total 90.03 last 88.26)
total: 8000 open/close in 91.83 seconds: 87.12 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1780342052 ; total 1 ; last 1)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 979 (time 1780342151.86 total 10.02 last 97.75)
 - open/close 1928 (time 1780342161.87 total 20.02 last 94.86)
 - open/close 2968 (time 1780342171.88 total 30.03 last 103.86)
 - open/close 3912 (time 1780342181.88 total 40.03 last 94.40)
 - open/close 4879 (time 1780342191.88 total 50.04 last 96.67)
 - open/close 5819 (time 1780342201.88 total 60.04 last 93.98)
 - open/close 6792 (time 1780342211.89 total 70.04 last 97.26)
 - open/close 7765 (time 1780342221.90 total 80.05 last 97.22)
total: 8000 open/close in 82.61 seconds: 96.85 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 59 seconds
lru_size = 4006
4001
ls -la is 56% faster with lru resize enabled
 - unlinked 0 (time 1780342298 ; total 0 ; last 0)
total: 8000 unlinks in 49 seconds: 163.265305 unlinks/second