== sanity test 124b: lru resize (performance test) ================================================================================= 18:13:57 (1787609637)
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 879 (time 1787609652.76 total 10.00 last 87.86)
 - open/close 1900 (time 1787609662.77 total 20.01 last 102.01)
 - open/close 2736 (time 1787609672.77 total 30.02 last 83.58)
 - open/close 3785 (time 1787609682.79 total 40.03 last 104.72)
 - open/close 4443 (time 1787609692.79 total 50.04 last 65.78)
 - open/close 5326 (time 1787609702.80 total 60.05 last 88.22)
 - open/close 6180 (time 1787609712.81 total 70.05 last 85.33)
 - open/close 6946 (time 1787609722.82 total 80.06 last 76.55)
 - open/close 7738 (time 1787609732.82 total 90.06 last 79.18)
total: 8000 open/close in 94.00 seconds: 85.10 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 400
400
 - unlinked 0 (time 1787609839 ; total 0 ; last 0)
total: 8000 unlinks in 85 seconds: 94.117645 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 964 (time 1787609939.92 total 10.00 last 96.36)
 - open/close 1953 (time 1787609949.94 total 20.02 last 98.71)
 - open/close 2859 (time 1787609959.95 total 30.03 last 90.50)
 - open/close 3852 (time 1787609969.95 total 40.04 last 99.26)
 - open/close 4711 (time 1787609979.96 total 50.04 last 85.89)
 - open/close 5531 (time 1787609989.97 total 60.06 last 81.85)
 - open/close 6504 (time 1787609999.98 total 70.06 last 97.29)
 - open/close 7528 (time 1787610009.98 total 80.06 last 102.34)
total: 8000 open/close in 85.52 seconds: 93.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 4006
4001
ls -la is 14% faster with lru resize enabled
 - unlinked 0 (time 1787610113 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second