== sanity test 124b: lru resize (performance test) ================================================================================= 10:38:48 (1788532728)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 913 (time 1788532743.01 total 10.01 last 91.25)
 - open/close 1724 (time 1788532753.01 total 20.01 last 81.08)
 - open/close 2532 (time 1788532763.01 total 30.01 last 80.79)
 - open/close 3349 (time 1788532773.02 total 40.02 last 81.63)
 - open/close 4177 (time 1788532783.03 total 50.02 last 82.75)
 - open/close 4940 (time 1788532793.04 total 60.04 last 76.21)
 - open/close 5926 (time 1788532803.04 total 70.04 last 98.57)
 - open/close 6829 (time 1788532813.04 total 80.04 last 90.29)
 - open/close 7627 (time 1788532823.05 total 90.05 last 79.72)
total: 8000 open/close in 94.67 seconds: 84.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 138 seconds
lru_size = 400
400
 - unlinked 0 (time 1788532974 ; total 0 ; last 0)
total: 8000 unlinks in 79 seconds: 101.265823 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1111 (time 1788533067.69 total 10.00 last 111.06)
 - open/close 2126 (time 1788533077.69 total 20.01 last 101.46)
 - open/close 3323 (time 1788533087.71 total 30.02 last 119.55)
 - open/close 4262 (time 1788533097.71 total 40.02 last 93.88)
 - open/close 5203 (time 1788533107.71 total 50.02 last 94.08)
 - open/close 6013 (time 1788533117.71 total 60.03 last 80.98)
 - open/close 7005 (time 1788533127.72 total 70.03 last 99.13)
 - open/close 7720 (time 1788533137.73 total 80.04 last 71.45)
total: 8000 open/close in 83.38 seconds: 95.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 90 seconds
lru_size = 4052
3955
ls -la is 34% faster with lru resize enabled
 - unlinked 0 (time 1788533252 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second