== sanity test 124b: lru resize (performance test) ================================================================================= 04:38:30 (1788338310)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1632 (time 1788338323.65 total 10.01 last 163.10)
 - open/close 2969 (time 1788338333.66 total 20.01 last 133.70)
 - open/close 4236 (time 1788338343.66 total 30.02 last 126.59)
 - open/close 5554 (time 1788338353.66 total 40.02 last 131.80)
 - open/close 6897 (time 1788338363.67 total 50.02 last 134.28)
total: 8000 open/close in 58.57 seconds: 136.60 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 1788338471 ; total 0 ; last 0)
total: 8000 unlinks in 45 seconds: 177.777771 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1193 (time 1788338528.79 total 10.00 last 119.26)
 - open/close 2234 (time 1788338538.80 total 20.01 last 104.07)
 - open/close 3353 (time 1788338548.80 total 30.01 last 111.86)
 - open/close 4701 (time 1788338558.81 total 40.02 last 134.72)
 - open/close 6024 (time 1788338568.81 total 50.02 last 132.27)
 - open/close 6831 (time 1788338578.82 total 60.03 last 80.57)
 - open/close 7420 (time 1788338588.84 total 70.05 last 58.80)
total: 8000 open/close in 79.78 seconds: 100.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 4052
3955
ls -la is 4% slower with lru resize enabled
 - unlinked 0 (time 1788338716 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second