== sanity test 124b: lru resize (performance test) ================================================================================= 11:26:56 (1790782016)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 823 (time 1790782031.18 total 10.01 last 82.24)
 - open/close 1633 (time 1790782041.18 total 20.01 last 80.96)
 - open/close 2297 (time 1790782051.19 total 30.02 last 66.33)
 - open/close 3058 (time 1790782061.20 total 40.03 last 76.05)
 - open/close 4041 (time 1790782071.21 total 50.04 last 98.20)
 - open/close 4900 (time 1790782081.21 total 60.04 last 85.89)
 - open/close 5646 (time 1790782091.21 total 70.04 last 74.58)
 - open/close 6662 (time 1790782101.22 total 80.05 last 101.51)
 - open/close 7677 (time 1790782111.23 total 90.06 last 101.46)
total: 8000 open/close in 93.62 seconds: 85.45 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 143 seconds
lru_size = 400
400
 - unlinked 0 (time 1790782267 ; total 0 ; last 0)
total: 8000 unlinks in 93 seconds: 86.021507 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 996 (time 1790782374.89 total 10.01 last 99.51)
 - open/close 1980 (time 1790782384.90 total 20.02 last 98.32)
 - open/close 2963 (time 1790782394.90 total 30.02 last 98.25)
 - open/close 3877 (time 1790782404.92 total 40.04 last 91.28)
 - open/close 4840 (time 1790782414.92 total 50.04 last 96.25)
 - open/close 5729 (time 1790782424.92 total 60.04 last 88.89)
 - open/close 6541 (time 1790782434.93 total 70.05 last 81.16)
 - open/close 7373 (time 1790782444.93 total 80.05 last 83.14)
total: 8000 open/close in 87.48 seconds: 91.45 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 86 seconds
lru_size = 4006
4001
ls -la is 39% faster with lru resize enabled
 - unlinked 0 (time 1790782561 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second