== sanity test 124b: lru resize (performance test) ================================================================================= 02:21:31 (1781245291)
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 562 (time 1781245307.31 total 10.02 last 56.10)
 - open/close 1019 (time 1781245317.36 total 20.07 last 45.46)
 - open/close 1603 (time 1781245327.36 total 30.07 last 58.39)
 - open/close 2470 (time 1781245337.36 total 40.08 last 86.67)
 - open/close 3288 (time 1781245347.37 total 50.08 last 81.77)
 - open/close 4145 (time 1781245357.37 total 60.08 last 85.67)
 - open/close 4966 (time 1781245367.37 total 70.08 last 82.10)
 - open/close 5787 (time 1781245377.38 total 80.09 last 82.07)
 - open/close 6713 (time 1781245387.38 total 90.09 last 92.57)
 - open/close 7511 (time 1781245397.38 total 100.10 last 79.77)
total: 8000 open/close in 105.70 seconds: 75.69 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 161 seconds
lru_size = 400
400
 - unlinked 0 (time 1781245574 ; total 0 ; last 0)
total: 8000 unlinks in 86 seconds: 93.023254 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 922 (time 1781245674.08 total 10.01 last 92.11)
 - open/close 1827 (time 1781245684.09 total 20.02 last 90.44)
 - open/close 2816 (time 1781245694.09 total 30.02 last 98.85)
 - open/close 3727 (time 1781245704.09 total 40.02 last 91.07)
 - open/close 4596 (time 1781245714.10 total 50.03 last 86.89)
 - open/close 5545 (time 1781245724.10 total 60.03 last 94.88)
 - open/close 6167 (time 1781245734.11 total 70.03 last 62.16)
 - open/close 6783 (time 1781245744.19 total 80.12 last 61.07)
 - open/close 7446 (time 1781245754.19 total 90.12 last 66.28)
total: 8000 open/close in 98.58 seconds: 81.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1781245875 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second