== sanity test 124b: lru resize (performance test) ================================================================================= 11:31:51 (1783956711)
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 1046 (time 1783956725.94 total 10.02 last 104.41)
 - open/close 1906 (time 1783956735.96 total 20.03 last 85.89)
 - open/close 2873 (time 1783956745.96 total 30.04 last 96.62)
 - open/close 3931 (time 1783956755.98 total 40.06 last 105.59)
 - open/close 4832 (time 1783956765.98 total 50.06 last 90.09)
 - open/close 5733 (time 1783956776.01 total 60.08 last 89.90)
 - open/close 6426 (time 1783956786.02 total 70.09 last 69.25)
 - open/close 7148 (time 1783956796.02 total 80.09 last 72.17)
total: 8000 open/close in 89.23 seconds: 89.65 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 153 seconds
lru_size = 400
400
 - unlinked 0 (time 1783956969 ; 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 773 (time 1783957069.42 total 10.00 last 77.29)
 - open/close 1768 (time 1783957079.43 total 20.00 last 99.47)
 - open/close 2821 (time 1783957089.44 total 30.01 last 105.22)
 - open/close 3787 (time 1783957099.45 total 40.02 last 96.49)
 - open/close 4712 (time 1783957109.46 total 50.03 last 92.42)
 - open/close 5421 (time 1783957119.46 total 60.04 last 70.87)
 - open/close 6305 (time 1783957129.47 total 70.04 last 88.35)
 - open/close 7379 (time 1783957139.47 total 80.04 last 107.38)
total: 8000 open/close in 86.09 seconds: 92.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1783957252 ; total 0 ; last 0)
total: 8000 unlinks in 48 seconds: 166.666672 unlinks/second