== sanity test 124b: lru resize (performance test) ================================================================================= 07:35:53 (1781004953)
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 868 (time 1781004967.48 total 10.01 last 86.70)
 - open/close 1676 (time 1781004977.50 total 20.03 last 80.64)
 - open/close 2453 (time 1781004987.50 total 30.04 last 77.66)
 - open/close 3312 (time 1781004997.51 total 40.05 last 85.80)
 - open/close 4132 (time 1781005007.52 total 50.05 last 81.96)
 - open/close 4983 (time 1781005017.52 total 60.05 last 85.09)
 - open/close 5869 (time 1781005027.53 total 70.06 last 88.53)
 - open/close 6668 (time 1781005037.53 total 80.06 last 79.90)
 - open/close 7554 (time 1781005047.53 total 90.07 last 88.53)
total: 8000 open/close in 95.17 seconds: 84.06 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 137 seconds
lru_size = 400
400
 - unlinked 0 (time 1781005198 ; total 0 ; last 0)
total: 8000 unlinks in 85 seconds: 94.117645 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 826 (time 1781005299.02 total 10.01 last 82.52)
 - open/close 1705 (time 1781005309.02 total 20.01 last 87.86)
 - open/close 2544 (time 1781005319.04 total 30.03 last 83.79)
 - open/close 3408 (time 1781005329.04 total 40.04 last 86.32)
 - open/close 4305 (time 1781005339.05 total 50.04 last 89.63)
 - open/close 5162 (time 1781005349.06 total 60.05 last 85.61)
 - open/close 5996 (time 1781005359.08 total 70.07 last 83.24)
 - open/close 6899 (time 1781005369.08 total 80.08 last 90.27)
 - open/close 7803 (time 1781005379.09 total 90.08 last 90.39)
total: 8000 open/close in 92.32 seconds: 86.66 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4052
3955
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1781005483 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second