== sanity test 124b: lru resize (performance test) ================================================================================= 21:44:13 (1788399853)
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 943 (time 1788399869.12 total 10.01 last 94.23)
 - open/close 1950 (time 1788399879.12 total 20.01 last 100.67)
 - open/close 2822 (time 1788399889.13 total 30.02 last 87.14)
 - open/close 3806 (time 1788399899.13 total 40.02 last 98.37)
 - open/close 4642 (time 1788399909.14 total 50.03 last 83.55)
 - open/close 5601 (time 1788399919.14 total 60.03 last 95.89)
 - open/close 6429 (time 1788399929.14 total 70.03 last 82.79)
 - open/close 7420 (time 1788399939.15 total 80.04 last 99.02)
total: 8000 open/close in 87.07 seconds: 91.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 148 seconds
lru_size = 400
400
 - unlinked 0 (time 1788400105 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 901 (time 1788400215.66 total 10.00 last 90.08)
 - open/close 1824 (time 1788400225.66 total 20.00 last 92.28)
 - open/close 2644 (time 1788400235.68 total 30.02 last 81.85)
 - open/close 3481 (time 1788400245.68 total 40.02 last 83.69)
 - open/close 4402 (time 1788400255.69 total 50.03 last 92.06)
 - open/close 5298 (time 1788400265.70 total 60.04 last 89.54)
 - open/close 6195 (time 1788400275.70 total 70.04 last 89.69)
 - open/close 7117 (time 1788400285.71 total 80.05 last 92.09)
 - open/close 7986 (time 1788400295.71 total 90.05 last 86.86)
total: 8000 open/close in 90.27 seconds: 88.62 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 41% faster with lru resize enabled
 - unlinked 0 (time 1788400406 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second