== sanity test 124b: lru resize (performance test) ================================================================================= 13:27:38 (1788629258)
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 842 (time 1788629272.51 total 10.00 last 84.19)
 - open/close 1713 (time 1788629282.52 total 20.01 last 87.01)
 - open/close 2549 (time 1788629292.53 total 30.02 last 83.51)
 - open/close 3418 (time 1788629302.55 total 40.04 last 86.77)
 - open/close 4258 (time 1788629312.55 total 50.04 last 84.00)
 - open/close 5119 (time 1788629322.55 total 60.04 last 86.08)
 - open/close 5975 (time 1788629332.55 total 70.04 last 85.59)
 - open/close 6884 (time 1788629342.55 total 80.04 last 90.90)
 - open/close 7719 (time 1788629352.56 total 90.05 last 83.42)
total: 8000 open/close in 93.53 seconds: 85.53 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 1788629508 ; total 0 ; last 0)
total: 8000 unlinks in 88 seconds: 90.909088 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 837 (time 1788629610.61 total 10.00 last 83.67)
 - open/close 1710 (time 1788629620.62 total 20.01 last 87.28)
 - open/close 2544 (time 1788629630.63 total 30.02 last 83.31)
 - open/close 3490 (time 1788629640.64 total 40.03 last 94.50)
 - open/close 4378 (time 1788629650.64 total 50.03 last 88.74)
 - open/close 5210 (time 1788629660.65 total 60.04 last 83.16)
 - open/close 6092 (time 1788629670.66 total 70.04 last 88.15)
 - open/close 6973 (time 1788629680.66 total 80.05 last 88.07)
 - open/close 7899 (time 1788629690.66 total 90.05 last 92.59)
total: 8000 open/close in 91.04 seconds: 87.87 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 73 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1788629782 ; total 0 ; last 0)
total: 8000 unlinks in 60 seconds: 133.333328 unlinks/second