== sanity test 124b: lru resize (performance test) ================================================================================= 18:12:49 (1788473569)
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 921 (time 1788473584.35 total 10.02 last 91.93)
 - open/close 1709 (time 1788473594.36 total 20.03 last 78.72)
 - open/close 2506 (time 1788473604.37 total 30.04 last 79.60)
 - open/close 3214 (time 1788473614.38 total 40.05 last 70.75)
 - open/close 4112 (time 1788473624.40 total 50.07 last 89.60)
 - open/close 4970 (time 1788473634.42 total 60.09 last 85.64)
 - open/close 5920 (time 1788473644.42 total 70.09 last 94.99)
 - open/close 6724 (time 1788473654.44 total 80.11 last 80.27)
 - open/close 7498 (time 1788473664.45 total 90.12 last 77.32)
total: 8000 open/close in 96.34 seconds: 83.04 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 157 seconds
lru_size = 400
400
 - unlinked 0 (time 1788473837 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 795 (time 1788473945.10 total 10.01 last 79.41)
 - open/close 1668 (time 1788473955.11 total 20.02 last 87.26)
 - open/close 2490 (time 1788473965.11 total 30.02 last 82.16)
 - open/close 3377 (time 1788473975.11 total 40.02 last 88.70)
 - open/close 4315 (time 1788473985.12 total 50.03 last 93.76)
 - open/close 5280 (time 1788473995.12 total 60.03 last 96.44)
 - open/close 6160 (time 1788474005.13 total 70.04 last 87.96)
 - open/close 7032 (time 1788474015.14 total 80.05 last 87.07)
 - open/close 7997 (time 1788474025.15 total 90.06 last 96.44)
total: 8000 open/close in 90.08 seconds: 88.81 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 93 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788474139 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second