== sanity test 124b: lru resize (performance test) ================================================================================= 23:46:13 (1787802373)
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 875 (time 1787802388.37 total 10.01 last 87.45)
 - open/close 1645 (time 1787802398.38 total 20.02 last 76.92)
 - open/close 2405 (time 1787802408.38 total 30.02 last 75.99)
 - open/close 3285 (time 1787802418.39 total 40.03 last 87.92)
 - open/close 4098 (time 1787802428.40 total 50.04 last 81.15)
 - open/close 4964 (time 1787802438.41 total 60.05 last 86.56)
 - open/close 5804 (time 1787802448.42 total 70.06 last 83.90)
 - open/close 6677 (time 1787802458.42 total 80.06 last 87.27)
 - open/close 7466 (time 1787802468.43 total 90.07 last 78.87)
total: 8000 open/close in 96.65 seconds: 82.77 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 147 seconds
lru_size = 400
400
 - unlinked 0 (time 1787802631 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 956 (time 1787802738.65 total 10.00 last 95.56)
 - open/close 1850 (time 1787802748.66 total 20.01 last 89.35)
 - open/close 2814 (time 1787802758.66 total 30.01 last 96.38)
 - open/close 3764 (time 1787802768.67 total 40.02 last 94.89)
 - open/close 4695 (time 1787802778.67 total 50.03 last 93.08)
 - open/close 5701 (time 1787802788.68 total 60.03 last 100.58)
 - open/close 6621 (time 1787802798.69 total 70.04 last 91.90)
 - open/close 7494 (time 1787802808.69 total 80.05 last 87.24)
total: 8000 open/close in 86.36 seconds: 92.64 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 40% faster with lru resize enabled
 - unlinked 0 (time 1787802922 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second