== sanity test 124b: lru resize (performance test) ================================================================================= 00:46:27 (1789274787)
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 640 (time 1789274801.58 total 10.03 last 63.78)
 - open/close 1187 (time 1789274811.58 total 20.04 last 54.69)
 - open/close 1801 (time 1789274821.59 total 30.05 last 61.35)
 - open/close 2533 (time 1789274831.60 total 40.05 last 73.15)
 - open/close 3365 (time 1789274841.60 total 50.06 last 83.16)
 - open/close 4243 (time 1789274851.60 total 60.06 last 87.77)
 - open/close 5200 (time 1789274861.61 total 70.06 last 95.68)
 - open/close 5850 (time 1789274871.61 total 80.07 last 64.95)
 - open/close 6644 (time 1789274881.62 total 90.07 last 79.39)
 - open/close 7462 (time 1789274891.62 total 100.08 last 81.76)
total: 8000 open/close in 107.22 seconds: 74.61 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 162 seconds
lru_size = 400
400
 - unlinked 0 (time 1789275076 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 909 (time 1789275186.74 total 10.00 last 90.87)
 - open/close 1858 (time 1789275196.74 total 20.01 last 94.88)
 - open/close 2787 (time 1789275206.74 total 30.01 last 92.89)
 - open/close 3760 (time 1789275216.76 total 40.03 last 97.12)
 - open/close 4657 (time 1789275226.76 total 50.03 last 89.64)
 - open/close 5627 (time 1789275236.77 total 60.04 last 96.95)
 - open/close 6553 (time 1789275246.77 total 70.04 last 92.56)
 - open/close 7631 (time 1789275256.78 total 80.04 last 107.78)
total: 8000 open/close in 83.98 seconds: 95.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4052
3955
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1789275366 ; total 0 ; last 0)
total: 8000 unlinks in 63 seconds: 126.984123 unlinks/second