== sanity test 124b: lru resize (performance test) ================================================================================= 07:34:21 (1779708861)
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 786 (time 1779708875.99 total 10.01 last 78.54)
 - open/close 1598 (time 1779708885.99 total 20.01 last 81.19)
 - open/close 2395 (time 1779708895.99 total 30.01 last 79.69)
 - open/close 3200 (time 1779708906.00 total 40.02 last 80.40)
 - open/close 4015 (time 1779708916.01 total 50.02 last 81.49)
 - open/close 4881 (time 1779708926.01 total 60.03 last 86.56)
 - open/close 5670 (time 1779708936.03 total 70.05 last 78.75)
 - open/close 6538 (time 1779708946.03 total 80.05 last 86.79)
 - open/close 7453 (time 1779708956.04 total 90.06 last 91.37)
total: 8000 open/close in 96.80 seconds: 82.64 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 1779709124 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 834 (time 1779709230.91 total 10.01 last 83.34)
 - open/close 1548 (time 1779709240.92 total 20.01 last 71.37)
 - open/close 2341 (time 1779709250.92 total 30.01 last 79.30)
 - open/close 3230 (time 1779709260.92 total 40.01 last 88.89)
 - open/close 4078 (time 1779709270.92 total 50.01 last 84.79)
 - open/close 4865 (time 1779709280.92 total 60.02 last 78.68)
 - open/close 5755 (time 1779709290.93 total 70.02 last 88.93)
 - open/close 6489 (time 1779709300.93 total 80.02 last 73.39)
 - open/close 7358 (time 1779709310.94 total 90.03 last 86.88)
total: 8000 open/close in 97.10 seconds: 82.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1779709425 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second