== sanity test 124b: lru resize (performance test) ================================================================================= 02:55:14 (1781247314)
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 888 (time 1781247330.43 total 10.01 last 88.72)
 - open/close 1736 (time 1781247340.43 total 20.01 last 84.80)
 - open/close 2748 (time 1781247350.45 total 30.02 last 101.07)
 - open/close 3728 (time 1781247360.45 total 40.02 last 97.97)
 - open/close 4664 (time 1781247370.46 total 50.03 last 93.54)
 - open/close 5627 (time 1781247380.46 total 60.04 last 96.23)
 - open/close 6570 (time 1781247390.47 total 70.04 last 94.27)
 - open/close 7440 (time 1781247400.47 total 80.04 last 86.98)
total: 8000 open/close in 86.09 seconds: 92.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 123 seconds
lru_size = 400
400
 - unlinked 0 (time 1781247536 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1182 (time 1781247616.04 total 10.00 last 118.16)
 - open/close 2290 (time 1781247626.04 total 20.01 last 110.75)
 - open/close 3642 (time 1781247636.05 total 30.01 last 135.13)
 - open/close 5030 (time 1781247646.05 total 40.01 last 138.78)
 - open/close 6233 (time 1781247656.05 total 50.02 last 120.23)
 - open/close 7325 (time 1781247666.07 total 60.03 last 109.06)
total: 8000 open/close in 65.95 seconds: 121.30 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 4052
3955
ls -la is 62% faster with lru resize enabled
 - unlinked 0 (time 1781247729 ; total 0 ; last 0)
total: 8000 unlinks in 42 seconds: 190.476196 unlinks/second