== sanity test 124b: lru resize (performance test) ================================================================================= 07:17:11 (1787311031)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 876 (time 1787311046.20 total 10.00 last 87.57)
 - open/close 1646 (time 1787311056.21 total 20.01 last 76.94)
 - open/close 2464 (time 1787311066.22 total 30.02 last 81.76)
 - open/close 3170 (time 1787311076.23 total 40.03 last 70.48)
 - open/close 3976 (time 1787311086.25 total 50.05 last 80.50)
 - open/close 4856 (time 1787311096.25 total 60.05 last 87.94)
 - open/close 5696 (time 1787311106.26 total 70.06 last 83.92)
 - open/close 6531 (time 1787311116.27 total 80.07 last 83.48)
 - open/close 7404 (time 1787311126.28 total 90.07 last 87.22)
total: 8000 open/close in 97.09 seconds: 82.40 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 148 seconds
lru_size = 400
 - unlinked 0 (time 1787311289 ; total 0 ; last 0)
total: 8000 unlinks in 96 seconds: 83.333336 unlinks/second
 - open/close 716 (time 1787311399.10 total 10.01 last 71.53)
 - open/close 1402 (time 1787311409.10 total 20.01 last 68.58)
 - open/close 1974 (time 1787311419.10 total 30.01 last 57.19)
 - open/close 2666 (time 1787311429.12 total 40.03 last 69.11)
 - open/close 3484 (time 1787311439.13 total 50.04 last 81.72)
 - open/close 4356 (time 1787311449.13 total 60.04 last 87.15)
 - open/close 5169 (time 1787311459.14 total 70.05 last 81.26)
 - open/close 5936 (time 1787311469.14 total 80.05 last 76.70)
 - open/close 6728 (time 1787311479.14 total 90.05 last 79.17)
 - open/close 7351 (time 1787311489.15 total 100.06 last 62.25)
total: 8000 open/close in 108.23 seconds: 73.92 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 92 seconds
lru_size = 8005
ls -la is 37% faster with lru resize enabled
 - unlinked 0 (time 1787311612 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second