== sanity test 124b: lru resize (performance test) ================================================================================= 21:54:12 (1787795652)
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 912 (time 1787795666.70 total 10.01 last 91.10)
 - open/close 1818 (time 1787795676.70 total 20.01 last 90.57)
 - open/close 2715 (time 1787795686.70 total 30.02 last 89.68)
 - open/close 3684 (time 1787795696.71 total 40.02 last 96.87)
 - open/close 4544 (time 1787795706.71 total 50.03 last 85.94)
 - open/close 5382 (time 1787795716.72 total 60.03 last 83.75)
 - open/close 6310 (time 1787795726.72 total 70.04 last 92.76)
 - open/close 7267 (time 1787795736.73 total 80.04 last 95.64)
total: 8000 open/close in 87.79 seconds: 91.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 134 seconds
lru_size = 400
400
 - unlinked 0 (time 1787795887 ; total 1 ; last 1)
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 836 (time 1787795987.61 total 10.01 last 83.55)
 - open/close 1676 (time 1787795997.62 total 20.01 last 83.94)
 - open/close 2389 (time 1787796007.62 total 30.02 last 71.28)
 - open/close 3266 (time 1787796017.63 total 40.03 last 87.62)
 - open/close 4206 (time 1787796027.64 total 50.03 last 93.92)
 - open/close 5139 (time 1787796037.65 total 60.04 last 93.25)
 - open/close 6082 (time 1787796047.66 total 70.06 last 94.15)
 - open/close 6964 (time 1787796057.66 total 80.06 last 88.20)
 - open/close 7865 (time 1787796067.67 total 90.06 last 90.06)
total: 8000 open/close in 91.51 seconds: 87.42 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 64 seconds
lru_size = 4006
4001
ls -la is 52% faster with lru resize enabled
 - unlinked 0 (time 1787796149 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second