== sanity test 124b: lru resize (performance test) ================================================================================= 23:22:40 (1781666560)
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 1259 (time 1781666573.58 total 10.00 last 125.86)
 - open/close 2448 (time 1781666583.58 total 20.01 last 118.83)
 - open/close 3636 (time 1781666593.58 total 30.01 last 118.77)
 - open/close 4932 (time 1781666603.60 total 40.03 last 129.42)
 - open/close 6272 (time 1781666613.60 total 50.03 last 133.94)
 - open/close 7679 (time 1781666623.60 total 60.03 last 140.68)
total: 8000 open/close in 62.50 seconds: 128.00 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 400
400
 - unlinked 0 (time 1781666724 ; total 0 ; last 0)
total: 8000 unlinks in 16 seconds: 500.000000 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 3515 (time 1781666751.84 total 10.00 last 351.43)
 - open/close 6034 (time 1781666761.85 total 20.01 last 251.71)
 - open/close 7428 (time 1781666771.85 total 30.01 last 139.37)
total: 8000 open/close in 33.50 seconds: 238.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 63 seconds
lru_size = 4006
4001
ls -la is 32% faster with lru resize enabled
 - unlinked 0 (time 1781666848 ; total 0 ; last 0)
total: 8000 unlinks in 23 seconds: 347.826080 unlinks/second