== sanity test 124b: lru resize (performance test) ================================================================================= 04:56:49 (1772186209)
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 1557 (time 1772186221.90 total 10.00 last 155.68)
 - open/close 3107 (time 1772186231.90 total 20.01 last 154.93)
 - open/close 5185 (time 1772186241.91 total 30.01 last 207.67)
 - open/close 6773 (time 1772186251.91 total 40.01 last 158.76)
total: 8000 open/close in 48.41 seconds: 165.27 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 1772186358 ; total 0 ; last 0)
total: 8000 unlinks in 33 seconds: 242.424240 unlinks/second
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1532 (time 1772186403.49 total 10.00 last 153.19)
 - open/close 2846 (time 1772186413.50 total 20.00 last 131.35)
 - open/close 4173 (time 1772186423.50 total 30.01 last 132.69)
 - open/close 5587 (time 1772186433.50 total 40.01 last 141.32)
 - open/close 7017 (time 1772186443.51 total 50.02 last 142.94)
total: 8000 open/close in 55.45 seconds: 144.27 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 45 seconds
lru_size = 4006
4001
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1772186503 ; total 0 ; last 0)
total: 8000 unlinks in 26 seconds: 307.692322 unlinks/second