== sanity test 124b: lru resize (performance test) ================================================================================= 02:35:58 (1790750158)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 925 (time 1790750172.51 total 10.00 last 92.47)
 - open/close 1772 (time 1790750182.53 total 20.01 last 84.61)
 - open/close 2679 (time 1790750192.53 total 30.02 last 90.63)
 - open/close 3554 (time 1790750202.54 total 40.03 last 87.45)
 - open/close 4455 (time 1790750212.54 total 50.03 last 90.10)
 - open/close 5246 (time 1790750222.54 total 60.03 last 79.08)
 - open/close 6157 (time 1790750232.54 total 70.03 last 91.07)
 - open/close 6995 (time 1790750242.55 total 80.04 last 83.78)
 - open/close 7872 (time 1790750252.55 total 90.04 last 87.64)
total: 8000 open/close in 91.31 seconds: 87.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 165 seconds
lru_size = 400
400
 - unlinked 0 (time 1790750428 ; total 1 ; last 1)
total: 8000 unlinks in 79 seconds: 101.265823 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 929 (time 1790750521.94 total 10.01 last 92.78)
 - open/close 1817 (time 1790750531.94 total 20.01 last 88.80)
 - open/close 2695 (time 1790750541.94 total 30.01 last 87.80)
 - open/close 3623 (time 1790750551.95 total 40.02 last 92.75)
 - open/close 4508 (time 1790750561.95 total 50.03 last 88.44)
 - open/close 5312 (time 1790750571.96 total 60.03 last 80.37)
 - open/close 6271 (time 1790750581.97 total 70.04 last 95.81)
 - open/close 7049 (time 1790750591.98 total 80.06 last 77.66)
 - open/close 7890 (time 1790750601.98 total 90.06 last 84.09)
total: 8000 open/close in 91.21 seconds: 87.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 69 seconds
lru_size = 4006
4001
ls -la is 58% faster with lru resize enabled
 - unlinked 0 (time 1790750688 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second