== sanity test 124b: lru resize (performance test) ================================================================================= 20:41:25 (1787791285)
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 1016 (time 1787791299.53 total 10.00 last 101.58)
 - open/close 2106 (time 1787791309.53 total 20.00 last 108.98)
 - open/close 3176 (time 1787791319.53 total 30.01 last 106.96)
 - open/close 4243 (time 1787791329.53 total 40.01 last 106.68)
 - open/close 5242 (time 1787791339.53 total 50.01 last 99.89)
 - open/close 6321 (time 1787791349.54 total 60.02 last 107.82)
 - open/close 7463 (time 1787791359.55 total 70.03 last 114.11)
total: 8000 open/close in 74.86 seconds: 106.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 132 seconds
lru_size = 400
400
 - unlinked 0 (time 1787791503 ; total 0 ; last 0)
total: 8000 unlinks in 73 seconds: 109.589043 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1090 (time 1787791589.92 total 10.00 last 108.97)
 - open/close 2261 (time 1787791599.92 total 20.00 last 117.09)
 - open/close 3409 (time 1787791609.92 total 30.01 last 114.78)
 - open/close 4416 (time 1787791619.92 total 40.01 last 100.69)
 - open/close 5374 (time 1787791629.93 total 50.02 last 95.70)
 - open/close 6353 (time 1787791639.94 total 60.03 last 97.82)
 - open/close 7409 (time 1787791649.94 total 70.03 last 105.53)
total: 8000 open/close in 75.30 seconds: 106.24 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 66 seconds
lru_size = 4052
3955
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1787791737 ; total 0 ; last 0)
total: 8000 unlinks in 48 seconds: 166.666672 unlinks/second