== sanity test 124b: lru resize (performance test) ================================================================================= 00:26:22 (1788755182)
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 1062 (time 1788755196.95 total 10.01 last 106.15)
 - open/close 1891 (time 1788755206.97 total 20.03 last 82.70)
 - open/close 2818 (time 1788755216.98 total 30.04 last 92.61)
 - open/close 3753 (time 1788755226.98 total 40.04 last 93.46)
 - open/close 4742 (time 1788755236.98 total 50.04 last 98.89)
 - open/close 5633 (time 1788755246.98 total 60.04 last 89.09)
 - open/close 6490 (time 1788755257.00 total 70.06 last 85.61)
 - open/close 7331 (time 1788755267.00 total 80.06 last 84.07)
total: 8000 open/close in 87.57 seconds: 91.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 134 seconds
lru_size = 400
400
 - unlinked 0 (time 1788755418 ; total 0 ; last 0)
total: 8000 unlinks in 84 seconds: 95.238098 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 834 (time 1788755517.23 total 10.00 last 83.36)
 - open/close 1816 (time 1788755527.23 total 20.01 last 98.14)
 - open/close 2734 (time 1788755537.24 total 30.01 last 91.78)
 - open/close 3646 (time 1788755547.24 total 40.02 last 91.15)
 - open/close 4585 (time 1788755557.25 total 50.03 last 93.83)
 - open/close 5459 (time 1788755567.25 total 60.03 last 87.38)
 - open/close 6147 (time 1788755577.26 total 70.04 last 68.75)
 - open/close 6835 (time 1788755587.26 total 80.04 last 68.79)
 - open/close 7386 (time 1788755597.27 total 90.05 last 55.03)
total: 8000 open/close in 97.98 seconds: 81.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 98 seconds
lru_size = 4052
3955
ls -la is 26% faster with lru resize enabled
 - unlinked 0 (time 1788755725 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second