== sanity test 124b: lru resize (performance test) ================================================================================= 09:46:54 (1787838414)
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 987 (time 1787838429.04 total 10.00 last 98.69)
 - open/close 1729 (time 1787838439.04 total 20.00 last 74.19)
 - open/close 2581 (time 1787838449.05 total 30.01 last 85.13)
 - open/close 3439 (time 1787838459.05 total 40.02 last 85.74)
 - open/close 4235 (time 1787838469.06 total 50.03 last 79.53)
 - open/close 5008 (time 1787838479.07 total 60.03 last 77.28)
 - open/close 5779 (time 1787838489.07 total 70.03 last 77.07)
 - open/close 6525 (time 1787838499.08 total 80.04 last 74.54)
 - open/close 7267 (time 1787838509.08 total 90.05 last 74.15)
 - open/close 7959 (time 1787838519.09 total 100.05 last 69.18)
total: 8000 open/close in 100.54 seconds: 79.57 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 150 seconds
lru_size = 400
400
 - unlinked 0 (time 1787838680 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 946 (time 1787838783.48 total 10.00 last 94.56)
 - open/close 1813 (time 1787838793.48 total 20.01 last 86.67)
 - open/close 2648 (time 1787838803.49 total 30.01 last 83.45)
 - open/close 3593 (time 1787838813.49 total 40.02 last 94.49)
 - open/close 4442 (time 1787838823.49 total 50.02 last 84.89)
 - open/close 5294 (time 1787838833.49 total 60.02 last 85.19)
 - open/close 6148 (time 1787838843.50 total 70.03 last 85.30)
 - open/close 7100 (time 1787838853.50 total 80.03 last 95.16)
 - open/close 7986 (time 1787838863.52 total 90.05 last 88.48)
total: 8000 open/close in 90.19 seconds: 88.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1787838968 ; total 0 ; last 0)
total: 8000 unlinks in 67 seconds: 119.402985 unlinks/second