== sanity test 124b: lru resize (performance test) ================================================================================= 02:14:46 (1788848086)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 761 (time 1788848100.94 total 10.00 last 76.07)
 - open/close 1462 (time 1788848110.95 total 20.01 last 70.06)
 - open/close 2275 (time 1788848120.95 total 30.02 last 81.26)
 - open/close 3065 (time 1788848130.96 total 40.02 last 78.97)
 - open/close 3880 (time 1788848140.96 total 50.03 last 81.44)
 - open/close 4803 (time 1788848150.97 total 60.03 last 92.26)
 - open/close 5639 (time 1788848160.97 total 70.03 last 83.59)
 - open/close 6507 (time 1788848170.98 total 80.04 last 86.76)
 - open/close 7379 (time 1788848180.98 total 90.05 last 87.13)
total: 8000 open/close in 99.56 seconds: 80.36 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 102 seconds
lru_size = 400
400
 - unlinked 0 (time 1788848304 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 908 (time 1788848412.75 total 10.00 last 90.78)
 - open/close 1815 (time 1788848422.76 total 20.01 last 90.66)
 - open/close 2701 (time 1788848432.76 total 30.01 last 88.55)
 - open/close 3557 (time 1788848442.77 total 40.02 last 85.56)
 - open/close 4436 (time 1788848452.77 total 50.02 last 87.88)
 - open/close 5317 (time 1788848462.78 total 60.03 last 88.00)
 - open/close 6219 (time 1788848472.79 total 70.04 last 90.15)
 - open/close 7105 (time 1788848482.79 total 80.04 last 88.59)
total: 8000 open/close in 89.95 seconds: 88.94 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 100 seconds
lru_size = 4052
3955
ls -la is 1% faster with lru resize enabled
 - unlinked 0 (time 1788848612 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second