== sanity test 124b: lru resize (performance test) ================================================================================= 08:16:29 (1790684189)
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 612 (time 1790684205.63 total 10.01 last 61.11)
 - open/close 1114 (time 1790684215.64 total 20.03 last 50.14)
 - open/close 1808 (time 1790684225.65 total 30.04 last 69.34)
 - open/close 2521 (time 1790684235.65 total 40.04 last 71.30)
 - open/close 3225 (time 1790684245.67 total 50.06 last 70.26)
 - open/close 3956 (time 1790684255.69 total 60.07 last 72.98)
 - open/close 4583 (time 1790684265.69 total 70.08 last 62.67)
 - open/close 5360 (time 1790684275.71 total 80.09 last 77.58)
 - open/close 6092 (time 1790684285.73 total 90.11 last 73.03)
 - open/close 6896 (time 1790684295.73 total 100.12 last 80.38)
 - open/close 7679 (time 1790684305.76 total 110.14 last 78.13)
total: 8000 open/close in 114.26 seconds: 70.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 176 seconds
lru_size = 400
400
 - unlinked 0 (time 1790684497 ; total 0 ; last 0)
total: 8000 unlinks in 124 seconds: 64.516129 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 706 (time 1790684637.59 total 10.01 last 70.55)
 - open/close 1334 (time 1790684647.60 total 20.02 last 62.74)
 - open/close 1986 (time 1790684657.61 total 30.02 last 65.16)
 - open/close 2750 (time 1790684667.61 total 40.02 last 76.39)
 - open/close 3483 (time 1790684677.63 total 50.04 last 73.16)
 - open/close 4196 (time 1790684687.64 total 60.05 last 71.23)
 - open/close 4751 (time 1790684697.65 total 70.06 last 55.45)
 - open/close 5419 (time 1790684707.65 total 80.07 last 66.76)
 - open/close 6113 (time 1790684717.67 total 90.09 last 69.26)
 - open/close 6808 (time 1790684727.68 total 100.10 last 69.44)
 - open/close 7438 (time 1790684737.69 total 110.10 last 62.96)
total: 8000 open/close in 119.16 seconds: 67.14 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 113 seconds
lru_size = 4006
4001
ls -la is 35% faster with lru resize enabled
 - unlinked 0 (time 1790684884 ; total 0 ; last 0)
total: 8000 unlinks in 71 seconds: 112.676056 unlinks/second