== sanity test 124b: lru resize (performance test) ================================================================================= 12:28:15 (1788366495)
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 1427 (time 1788366508.48 total 10.01 last 142.59)
 - open/close 2760 (time 1788366518.49 total 20.01 last 133.25)
 - open/close 4115 (time 1788366528.49 total 30.02 last 135.41)
 - open/close 5475 (time 1788366538.50 total 40.02 last 135.94)
 - open/close 6806 (time 1788366548.50 total 50.02 last 133.09)
total: 8000 open/close in 59.73 seconds: 133.95 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 102 seconds
lru_size = 400
400
 - unlinked 0 (time 1788366666 ; total 0 ; last 0)
total: 8000 unlinks in 29 seconds: 275.862061 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1531 (time 1788366707.92 total 10.00 last 153.10)
 - open/close 3109 (time 1788366717.93 total 20.00 last 157.75)
 - open/close 4599 (time 1788366727.93 total 30.01 last 148.94)
 - open/close 6071 (time 1788366737.93 total 40.01 last 147.18)
 - open/close 7579 (time 1788366747.94 total 50.02 last 150.67)
total: 8000 open/close in 52.69 seconds: 151.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 43 seconds
lru_size = 4052
3955
ls -la is 57% faster with lru resize enabled
 - unlinked 0 (time 1788366803 ; total 0 ; last 0)
total: 8000 unlinks in 27 seconds: 296.296295 unlinks/second