== sanity test 124b: lru resize (performance test) ================================================================================= 13:47:01 (1788630421)
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 724 (time 1788630437.00 total 10.01 last 72.30)
 - open/close 1490 (time 1788630447.01 total 20.02 last 76.54)
 - open/close 2226 (time 1788630457.03 total 30.03 last 73.51)
 - open/close 2891 (time 1788630467.05 total 40.05 last 66.36)
 - open/close 3640 (time 1788630477.06 total 50.07 last 74.81)
 - open/close 4375 (time 1788630487.09 total 60.09 last 73.30)
 - open/close 5096 (time 1788630497.09 total 70.10 last 72.06)
 - open/close 5924 (time 1788630507.09 total 80.10 last 82.79)
 - open/close 6790 (time 1788630517.10 total 90.11 last 86.55)
 - open/close 7578 (time 1788630527.11 total 100.12 last 78.72)
total: 8000 open/close in 106.05 seconds: 75.43 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1788630695 ; total 0 ; last 0)
total: 8000 unlinks in 95 seconds: 84.210526 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 825 (time 1788630805.52 total 10.00 last 82.49)
 - open/close 1753 (time 1788630815.53 total 20.01 last 92.74)
 - open/close 2699 (time 1788630825.54 total 30.02 last 94.51)
 - open/close 3575 (time 1788630835.54 total 40.02 last 87.58)
 - open/close 4442 (time 1788630845.55 total 50.03 last 86.59)
 - open/close 5384 (time 1788630855.56 total 60.04 last 94.15)
 - open/close 6280 (time 1788630865.59 total 70.06 last 89.37)
 - open/close 7157 (time 1788630875.59 total 80.07 last 87.66)
total: 8000 open/close in 89.90 seconds: 88.99 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4006
4001
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1788630991 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second