== sanity test 124b: lru resize (performance test) ================================================================================= 23:19:48 (1790738388)
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 720 (time 1790738403.62 total 10.01 last 71.91)
 - open/close 1356 (time 1790738413.64 total 20.03 last 63.50)
 - open/close 2089 (time 1790738423.65 total 30.03 last 73.26)
 - open/close 2768 (time 1790738433.66 total 40.05 last 67.78)
 - open/close 3522 (time 1790738443.68 total 50.07 last 75.26)
 - open/close 4340 (time 1790738453.68 total 60.07 last 81.77)
 - open/close 5132 (time 1790738463.69 total 70.08 last 79.12)
 - open/close 5837 (time 1790738473.70 total 80.08 last 70.49)
 - open/close 6431 (time 1790738483.70 total 90.09 last 59.38)
 - open/close 7157 (time 1790738493.70 total 100.09 last 72.59)
 - open/close 7860 (time 1790738503.71 total 110.10 last 70.21)
total: 8000 open/close in 111.92 seconds: 71.48 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 152 seconds
lru_size = 400
400
 - unlinked 0 (time 1790738668 ; total 0 ; last 0)
total: 8000 unlinks in 106 seconds: 75.471695 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 768 (time 1790738788.51 total 10.00 last 76.78)
 - open/close 1485 (time 1790738798.51 total 20.00 last 71.70)
 - open/close 2229 (time 1790738808.51 total 30.01 last 74.37)
 - open/close 2836 (time 1790738818.52 total 40.02 last 60.62)
 - open/close 3418 (time 1790738828.53 total 50.02 last 58.17)
 - open/close 4137 (time 1790738838.54 total 60.04 last 71.81)
 - open/close 4838 (time 1790738848.54 total 70.04 last 70.07)
 - open/close 5576 (time 1790738858.57 total 80.07 last 73.61)
 - open/close 6387 (time 1790738868.58 total 90.07 last 81.05)
 - open/close 7153 (time 1790738878.58 total 100.07 last 76.60)
 - open/close 7888 (time 1790738888.59 total 110.08 last 73.43)
total: 8000 open/close in 111.17 seconds: 71.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3956
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1790739000 ; total 0 ; last 0)
total: 8000 unlinks in 68 seconds: 117.647057 unlinks/second