== sanity test 124b: lru resize (performance test) ================================================================================= 13:42:46 (1786210966)
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 1236 (time 1786210979.17 total 10.02 last 123.41)
 - open/close 2574 (time 1786210989.17 total 20.02 last 133.80)
 - open/close 3864 (time 1786210999.17 total 30.02 last 128.99)
 - open/close 5164 (time 1786211009.17 total 40.02 last 129.98)
 - open/close 6326 (time 1786211019.17 total 50.02 last 116.17)
 - open/close 7712 (time 1786211029.18 total 60.02 last 138.56)
total: 8000 open/close in 62.39 seconds: 128.23 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 101 seconds
lru_size = 400
400
 - unlinked 0 (time 1786211137 ; 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 1239 (time 1786211194.52 total 10.00 last 123.89)
 - open/close 2455 (time 1786211204.53 total 20.01 last 121.54)
 - open/close 3592 (time 1786211214.53 total 30.01 last 113.66)
 - open/close 5069 (time 1786211224.53 total 40.01 last 147.70)
 - open/close 6618 (time 1786211234.53 total 50.01 last 154.89)
total: 8000 open/close in 59.78 seconds: 133.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 52 seconds
lru_size = 4052
3955
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1786211306 ; total 0 ; last 0)
total: 8000 unlinks in 31 seconds: 258.064514 unlinks/second