== sanity test 124b: lru resize (performance test) ================================================================================= 11:16:05 (1789312565)
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 950 (time 1789312579.63 total 10.01 last 94.93)
 - open/close 1853 (time 1789312589.63 total 20.02 last 90.23)
 - open/close 2867 (time 1789312599.63 total 30.02 last 101.39)
 - open/close 3844 (time 1789312609.65 total 40.03 last 97.59)
 - open/close 4632 (time 1789312619.65 total 50.03 last 78.76)
 - open/close 5496 (time 1789312629.65 total 60.04 last 86.38)
 - open/close 6394 (time 1789312639.66 total 70.04 last 89.73)
 - open/close 7211 (time 1789312649.67 total 80.05 last 81.67)
total: 8000 open/close in 88.96 seconds: 89.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 144 seconds
lru_size = 400
400
 - unlinked 0 (time 1789312812 ; total 0 ; last 0)
total: 8000 unlinks in 79 seconds: 101.265823 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 891 (time 1789312906.31 total 10.01 last 89.03)
 - open/close 1702 (time 1789312916.31 total 20.01 last 81.07)
 - open/close 2652 (time 1789312926.31 total 30.02 last 94.96)
 - open/close 3677 (time 1789312936.31 total 40.02 last 102.48)
 - open/close 4691 (time 1789312946.32 total 50.02 last 101.39)
 - open/close 5677 (time 1789312956.32 total 60.02 last 98.60)
 - open/close 6663 (time 1789312966.32 total 70.02 last 98.59)
 - open/close 7663 (time 1789312976.32 total 80.03 last 99.93)
total: 8000 open/close in 83.20 seconds: 96.16 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 61 seconds
lru_size = 4052
3955
ls -la is 57% faster with lru resize enabled
 - unlinked 0 (time 1789313056 ; total 0 ; last 0)
total: 8000 unlinks in 50 seconds: 160.000000 unlinks/second