== sanity test 124b: lru resize (performance test) ================================================================================= 08:07:42 (1787573262)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 847 (time 1787573276.96 total 10.01 last 84.62)
 - open/close 1656 (time 1787573286.97 total 20.02 last 80.82)
 - open/close 2547 (time 1787573296.98 total 30.02 last 89.07)
 - open/close 3385 (time 1787573306.99 total 40.03 last 83.70)
 - open/close 4229 (time 1787573317.01 total 50.05 last 84.26)
 - open/close 5001 (time 1787573327.02 total 60.06 last 77.13)
 - open/close 5853 (time 1787573337.02 total 70.06 last 85.19)
 - open/close 6644 (time 1787573347.02 total 80.07 last 79.07)
 - open/close 7533 (time 1787573357.02 total 90.07 last 88.89)
total: 8000 open/close in 95.38 seconds: 83.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 400
400
 - unlinked 0 (time 1787573458 ; total 0 ; last 0)
total: 8000 unlinks in 114 seconds: 70.175438 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 889 (time 1787573587.18 total 10.00 last 88.89)
 - open/close 1713 (time 1787573597.18 total 20.00 last 82.40)
 - open/close 2643 (time 1787573607.18 total 30.01 last 92.95)
 - open/close 3433 (time 1787573617.20 total 40.03 last 78.84)
 - open/close 4289 (time 1787573627.22 total 50.05 last 85.44)
 - open/close 5095 (time 1787573637.23 total 60.06 last 80.52)
 - open/close 5879 (time 1787573647.23 total 70.06 last 78.40)
 - open/close 6685 (time 1787573657.24 total 80.06 last 80.55)
 - open/close 7423 (time 1787573667.24 total 90.06 last 73.79)
total: 8000 open/close in 97.56 seconds: 82.00 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 76 seconds
lru_size = 4052
3955
ls -la is 10% faster with lru resize enabled
 - unlinked 0 (time 1787573775 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second