== sanity test 124b: lru resize (performance test) ================================================================================= 13:03:29 (1788282209)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 858 (time 1788282224.70 total 10.00 last 85.77)
 - open/close 1608 (time 1788282234.71 total 20.01 last 74.93)
 - open/close 2335 (time 1788282244.72 total 30.02 last 72.67)
 - open/close 3004 (time 1788282254.72 total 40.02 last 66.89)
 - open/close 3779 (time 1788282264.73 total 50.03 last 77.43)
 - open/close 4616 (time 1788282274.75 total 60.05 last 83.54)
 - open/close 5411 (time 1788282284.76 total 70.06 last 79.42)
 - open/close 6170 (time 1788282294.76 total 80.06 last 75.89)
 - open/close 6905 (time 1788282304.76 total 90.06 last 73.49)
 - open/close 7744 (time 1788282314.78 total 100.07 last 83.78)
total: 8000 open/close in 103.34 seconds: 77.42 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 155 seconds
lru_size = 400
400
 - unlinked 0 (time 1788282484 ; total 0 ; last 0)
total: 8000 unlinks in 107 seconds: 74.766357 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 687 (time 1788282606.56 total 10.00 last 68.68)
 - open/close 1483 (time 1788282616.56 total 20.01 last 79.54)
 - open/close 2268 (time 1788282626.58 total 30.03 last 78.35)
 - open/close 3063 (time 1788282636.59 total 40.03 last 79.46)
 - open/close 3884 (time 1788282646.59 total 50.04 last 82.05)
 - open/close 4678 (time 1788282656.61 total 60.05 last 79.29)
 - open/close 5485 (time 1788282666.61 total 70.06 last 80.66)
 - open/close 6271 (time 1788282676.62 total 80.07 last 78.54)
 - open/close 7146 (time 1788282686.62 total 90.07 last 87.50)
 - open/close 7918 (time 1788282696.63 total 100.07 last 77.15)
total: 8000 open/close in 101.32 seconds: 78.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 79 seconds
lru_size = 4006
4001
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1788282798 ; total 0 ; last 0)
total: 8000 unlinks in 70 seconds: 114.285713 unlinks/second