== sanity test 124b: lru resize (performance test) ================================================================================= 11:18:10 (1787325490)
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 693 (time 1787325505.82 total 10.00 last 69.27)
 - open/close 1372 (time 1787325515.82 total 20.01 last 67.87)
 - open/close 2003 (time 1787325525.83 total 30.01 last 63.07)
 - open/close 2670 (time 1787325535.83 total 40.02 last 66.68)
 - open/close 3328 (time 1787325545.83 total 50.02 last 65.80)
 - open/close 4038 (time 1787325555.84 total 60.02 last 70.95)
 - open/close 4752 (time 1787325565.84 total 70.02 last 71.39)
 - open/close 5448 (time 1787325575.84 total 80.02 last 69.60)
 - open/close 6079 (time 1787325585.85 total 90.03 last 63.03)
 - open/close 6750 (time 1787325595.85 total 100.04 last 67.09)
 - open/close 7287 (time 1787325605.86 total 110.04 last 53.66)
 - open/close 7730 (time 1787325615.88 total 120.07 last 44.19)
total: 8000 open/close in 124.02 seconds: 64.50 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 188 seconds
lru_size = 400
400
 - unlinked 0 (time 1787325819 ; total 0 ; last 0)
total: 8000 unlinks in 117 seconds: 68.376068 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 730 (time 1787325951.46 total 10.00 last 72.99)
 - open/close 1412 (time 1787325961.47 total 20.01 last 68.17)
 - open/close 2123 (time 1787325971.48 total 30.01 last 71.05)
 - open/close 2828 (time 1787325981.49 total 40.03 last 70.38)
 - open/close 3501 (time 1787325991.50 total 50.04 last 67.22)
 - open/close 4218 (time 1787326001.51 total 60.05 last 71.65)
 - open/close 4913 (time 1787326011.52 total 70.05 last 69.47)
 - open/close 5544 (time 1787326021.52 total 80.05 last 63.10)
 - open/close 6187 (time 1787326031.52 total 90.06 last 64.28)
 - open/close 6839 (time 1787326041.52 total 100.06 last 65.17)
 - open/close 7541 (time 1787326051.53 total 110.07 last 70.14)
total: 8000 open/close in 117.39 seconds: 68.15 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4006
4001
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1787326172 ; total 0 ; last 0)
total: 8000 unlinks in 71 seconds: 112.676056 unlinks/second