== sanity test 124b: lru resize (performance test) ================================================================================= 04:45:06 (1789375506)
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 693 (time 1789375520.73 total 10.08 last 68.75)
 - open/close 1461 (time 1789375530.73 total 20.08 last 76.78)
 - open/close 2222 (time 1789375540.74 total 30.09 last 76.01)
 - open/close 2929 (time 1789375550.74 total 40.09 last 70.70)
 - open/close 3603 (time 1789375560.75 total 50.10 last 67.35)
 - open/close 4385 (time 1789375570.75 total 60.11 last 78.14)
 - open/close 5072 (time 1789375580.76 total 70.12 last 68.63)
 - open/close 5649 (time 1789375590.77 total 80.13 last 57.66)
 - open/close 6415 (time 1789375600.78 total 90.13 last 76.58)
 - open/close 7347 (time 1789375610.78 total 100.13 last 93.17)
total: 8000 open/close in 107.99 seconds: 74.08 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 156 seconds
lru_size = 400
400
 - unlinked 0 (time 1789375784 ; total 0 ; last 0)
total: 8000 unlinks in 87 seconds: 91.954025 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 972 (time 1789375885.54 total 10.00 last 97.16)
 - open/close 1865 (time 1789375895.56 total 20.02 last 89.18)
 - open/close 2738 (time 1789375905.56 total 30.02 last 87.29)
 - open/close 3758 (time 1789375915.56 total 40.02 last 101.97)
 - open/close 4630 (time 1789375925.57 total 50.03 last 87.15)
 - open/close 5431 (time 1789375935.59 total 60.05 last 79.95)
 - open/close 6224 (time 1789375945.59 total 70.05 last 79.23)
 - open/close 7020 (time 1789375955.60 total 80.06 last 79.57)
 - open/close 7774 (time 1789375965.61 total 90.07 last 75.30)
total: 8000 open/close in 93.46 seconds: 85.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4006
4002
ls -la is 41% faster with lru resize enabled
 - unlinked 0 (time 1789376079 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second