== sanity test 124b: lru resize (performance test) ================================================================================= 22:39:25 (1789526365)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1477 (time 1789526377.74 total 10.00 last 147.64)
 - open/close 2911 (time 1789526387.74 total 20.00 last 143.40)
 - open/close 4365 (time 1789526397.74 total 30.01 last 145.29)
 - open/close 6032 (time 1789526407.75 total 40.01 last 166.67)
 - open/close 7715 (time 1789526417.75 total 50.02 last 168.26)
total: 8000 open/close in 51.96 seconds: 153.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 400
 - unlinked 0 (time 1789526511 ; total 0 ; last 0)
total: 8000 unlinks in 35 seconds: 228.571426 unlinks/second
 - open/close 1356 (time 1789526559.90 total 10.01 last 135.50)
 - open/close 2785 (time 1789526569.91 total 20.01 last 142.82)
 - open/close 4448 (time 1789526579.91 total 30.01 last 166.29)
 - open/close 5969 (time 1789526589.91 total 40.02 last 152.04)
 - open/close 7616 (time 1789526599.91 total 50.02 last 164.70)
total: 8000 open/close in 52.34 seconds: 152.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 8005
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1789526657 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second