== sanity test 124b: lru resize (performance test) ================================================================================= 11:00:12 (1787583612)
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 844 (time 1787583627.49 total 10.00 last 84.37)
 - open/close 1681 (time 1787583637.50 total 20.01 last 83.66)
 - open/close 2526 (time 1787583647.50 total 30.01 last 84.45)
 - open/close 3343 (time 1787583657.51 total 40.02 last 81.65)
 - open/close 4216 (time 1787583667.51 total 50.02 last 87.27)
 - open/close 5076 (time 1787583677.52 total 60.03 last 85.93)
 - open/close 5845 (time 1787583687.53 total 70.04 last 76.83)
 - open/close 6676 (time 1787583697.54 total 80.05 last 83.03)
 - open/close 7519 (time 1787583707.55 total 90.07 last 84.16)
total: 8000 open/close in 95.27 seconds: 83.97 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 1787583869 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 850 (time 1787583979.82 total 10.01 last 84.93)
 - open/close 1632 (time 1787583989.83 total 20.02 last 78.14)
 - open/close 2410 (time 1787583999.83 total 30.02 last 77.79)
 - open/close 3267 (time 1787584009.84 total 40.03 last 85.63)
 - open/close 4158 (time 1787584019.84 total 50.03 last 89.09)
 - open/close 4975 (time 1787584029.86 total 60.04 last 81.55)
 - open/close 5860 (time 1787584039.87 total 70.06 last 88.40)
 - open/close 6715 (time 1787584049.88 total 80.06 last 85.44)
 - open/close 7523 (time 1787584059.88 total 90.06 last 80.79)
total: 8000 open/close in 95.44 seconds: 83.82 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4052
3955
ls -la is 42% faster with lru resize enabled
 - unlinked 0 (time 1787584168 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second