== sanity test 124b: lru resize (performance test) ================================================================================= 07:10:15 (1788520215)
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 800 (time 1788520230.47 total 10.01 last 79.90)
 - open/close 1525 (time 1788520240.47 total 20.01 last 72.49)
 - open/close 2263 (time 1788520250.47 total 30.02 last 73.78)
 - open/close 2999 (time 1788520260.49 total 40.03 last 73.49)
 - open/close 3778 (time 1788520270.50 total 50.04 last 77.83)
 - open/close 4528 (time 1788520280.51 total 60.05 last 74.93)
 - open/close 5262 (time 1788520290.51 total 70.06 last 73.35)
 - open/close 6031 (time 1788520300.53 total 80.07 last 76.80)
 - open/close 6847 (time 1788520310.53 total 90.07 last 81.55)
 - open/close 7573 (time 1788520320.53 total 100.07 last 72.60)
total: 8000 open/close in 105.30 seconds: 75.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 179 seconds
lru_size = 400
400
 - unlinked 0 (time 1788520515 ; total 0 ; last 0)
total: 8000 unlinks in 111 seconds: 72.072075 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 844 (time 1788520642.32 total 10.01 last 84.35)
 - open/close 1727 (time 1788520652.34 total 20.02 last 88.18)
 - open/close 2582 (time 1788520662.34 total 30.02 last 85.50)
 - open/close 3418 (time 1788520672.34 total 40.02 last 83.59)
 - open/close 4263 (time 1788520682.34 total 50.03 last 84.45)
 - open/close 5051 (time 1788520692.35 total 60.03 last 78.76)
 - open/close 6049 (time 1788520702.36 total 70.04 last 99.69)
 - open/close 6876 (time 1788520712.37 total 80.05 last 82.61)
 - open/close 7756 (time 1788520722.38 total 90.06 last 87.93)
total: 8000 open/close in 93.46 seconds: 85.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3955
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1788520836 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second