== sanity test 124b: lru resize (performance test) ================================================================================= 15:28:47 (1789068527)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 934 (time 1789068541.58 total 10.00 last 93.37)
 - open/close 1855 (time 1789068551.59 total 20.01 last 92.09)
 - open/close 2765 (time 1789068561.60 total 30.02 last 90.88)
 - open/close 3631 (time 1789068571.60 total 40.02 last 86.56)
 - open/close 4289 (time 1789068581.61 total 50.03 last 65.76)
 - open/close 5158 (time 1789068591.62 total 60.04 last 86.84)
 - open/close 5969 (time 1789068601.62 total 70.04 last 81.05)
 - open/close 6854 (time 1789068611.63 total 80.05 last 88.45)
 - open/close 7630 (time 1789068621.65 total 90.07 last 77.45)
total: 8000 open/close in 94.23 seconds: 84.90 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 95 seconds
lru_size = 400
400
 - unlinked 0 (time 1789068731 ; total 0 ; last 0)
total: 8000 unlinks in 91 seconds: 87.912086 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1003 (time 1789068837.64 total 10.01 last 100.22)
 - open/close 1823 (time 1789068847.65 total 20.01 last 81.95)
 - open/close 2720 (time 1789068857.65 total 30.02 last 89.68)
 - open/close 3724 (time 1789068867.65 total 40.02 last 100.40)
 - open/close 4592 (time 1789068877.66 total 50.02 last 86.77)
 - open/close 5269 (time 1789068887.66 total 60.03 last 67.64)
 - open/close 5949 (time 1789068897.67 total 70.04 last 67.95)
 - open/close 6816 (time 1789068907.68 total 80.04 last 86.66)
 - open/close 7618 (time 1789068917.69 total 90.05 last 80.12)
total: 8000 open/close in 94.51 seconds: 84.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 6% faster with lru resize enabled
 - unlinked 0 (time 1789069031 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second