== sanity test 124b: lru resize (performance test) ================================================================================= 02:47:57 (1788763677)
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 824 (time 1788763691.98 total 10.00 last 82.37)
 - open/close 1572 (time 1788763701.99 total 20.01 last 74.76)
 - open/close 2427 (time 1788763711.99 total 30.01 last 85.48)
 - open/close 3395 (time 1788763721.99 total 40.02 last 96.76)
 - open/close 4340 (time 1788763732.00 total 50.02 last 94.45)
 - open/close 5086 (time 1788763742.01 total 60.03 last 74.51)
 - open/close 5729 (time 1788763752.01 total 70.04 last 64.27)
 - open/close 6463 (time 1788763762.02 total 80.05 last 73.35)
 - open/close 7316 (time 1788763772.03 total 90.06 last 85.22)
total: 8000 open/close in 99.13 seconds: 80.70 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 1788763949 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 872 (time 1788764055.41 total 10.00 last 87.16)
 - open/close 1752 (time 1788764065.41 total 20.01 last 87.96)
 - open/close 2595 (time 1788764075.42 total 30.02 last 84.23)
 - open/close 3371 (time 1788764085.42 total 40.02 last 77.57)
 - open/close 4265 (time 1788764095.43 total 50.03 last 89.32)
 - open/close 5161 (time 1788764105.44 total 60.04 last 89.50)
 - open/close 6058 (time 1788764115.45 total 70.04 last 89.66)
 - open/close 7079 (time 1788764125.45 total 80.05 last 102.02)
 - open/close 7989 (time 1788764135.46 total 90.05 last 90.97)
total: 8000 open/close in 90.18 seconds: 88.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788764238 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second