== sanity test 124b: lru resize (performance test) ================================================================================= 18:06:32 (1788473192)
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 886 (time 1788473206.79 total 10.00 last 88.59)
 - open/close 1761 (time 1788473216.81 total 20.02 last 87.36)
 - open/close 2611 (time 1788473226.81 total 30.02 last 85.00)
 - open/close 3453 (time 1788473236.82 total 40.03 last 84.13)
 - open/close 4256 (time 1788473246.83 total 50.04 last 80.21)
 - open/close 5075 (time 1788473256.84 total 60.05 last 81.79)
 - open/close 5805 (time 1788473266.85 total 70.05 last 72.98)
 - open/close 6474 (time 1788473276.86 total 80.07 last 66.81)
 - open/close 7209 (time 1788473286.87 total 90.07 last 73.45)
total: 8000 open/close in 98.60 seconds: 81.14 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 146 seconds
lru_size = 400
400
 - unlinked 0 (time 1788473449 ; 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 851 (time 1788473557.26 total 10.00 last 85.08)
 - open/close 1644 (time 1788473567.26 total 20.00 last 79.28)
 - open/close 2541 (time 1788473577.26 total 30.01 last 89.65)
 - open/close 3421 (time 1788473587.27 total 40.01 last 87.98)
 - open/close 4288 (time 1788473597.27 total 50.02 last 86.65)
 - open/close 5109 (time 1788473607.28 total 60.02 last 82.06)
 - open/close 5978 (time 1788473617.29 total 70.03 last 86.81)
 - open/close 6810 (time 1788473627.29 total 80.04 last 83.15)
 - open/close 7677 (time 1788473637.31 total 90.05 last 86.56)
total: 8000 open/close in 93.63 seconds: 85.44 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 77 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1788473735 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second