== sanity test 124b: lru resize (performance test) ================================================================================= 14:59:59 (1784055599)
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 718 (time 1784055614.08 total 10.01 last 71.75)
 - open/close 1264 (time 1784055624.08 total 20.01 last 54.59)
 - open/close 1667 (time 1784055634.08 total 30.01 last 40.30)
 - open/close 2263 (time 1784055644.08 total 40.01 last 59.57)
 - open/close 3308 (time 1784055654.11 total 50.04 last 104.26)
 - open/close 4083 (time 1784055664.12 total 60.05 last 77.42)
 - open/close 4876 (time 1784055674.12 total 70.05 last 79.27)
 - open/close 5616 (time 1784055684.12 total 80.05 last 73.97)
 - open/close 6332 (time 1784055694.13 total 90.06 last 71.53)
 - open/close 7124 (time 1784055704.13 total 100.06 last 79.20)
total: 8000 open/close in 108.19 seconds: 73.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 174 seconds
lru_size = 400
400
 - unlinked 0 (time 1784055897 ; total 0 ; last 0)
total: 8000 unlinks in 97 seconds: 82.474228 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 929 (time 1784056010.35 total 10.00 last 92.87)
 - open/close 1942 (time 1784056020.35 total 20.01 last 101.26)
 - open/close 2797 (time 1784056030.36 total 30.02 last 85.43)
 - open/close 3718 (time 1784056040.36 total 40.02 last 92.07)
 - open/close 4577 (time 1784056050.37 total 50.02 last 85.86)
 - open/close 5561 (time 1784056060.37 total 60.03 last 98.38)
 - open/close 6539 (time 1784056070.37 total 70.03 last 97.76)
 - open/close 7406 (time 1784056080.38 total 80.04 last 86.65)
 - open/close 7981 (time 1784056090.39 total 90.05 last 57.43)
total: 8000 open/close in 90.34 seconds: 88.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 50% faster with lru resize enabled
 - unlinked 0 (time 1784056200 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second