== sanity test 124b: lru resize (performance test) ================================================================================= 15:59:49 (1790107189)
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 1230 (time 1790107202.88 total 10.01 last 122.88)
 - open/close 2159 (time 1790107212.89 total 20.02 last 92.83)
 - open/close 3149 (time 1790107222.89 total 30.02 last 98.98)
 - open/close 4083 (time 1790107232.89 total 40.02 last 93.40)
 - open/close 5060 (time 1790107242.90 total 50.02 last 97.64)
 - open/close 6092 (time 1790107252.91 total 60.03 last 103.10)
 - open/close 7084 (time 1790107262.92 total 70.05 last 99.09)
total: 8000 open/close in 79.17 seconds: 101.05 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 118 seconds
lru_size = 400
400
 - unlinked 0 (time 1790107397 ; total 0 ; last 0)
total: 8000 unlinks in 124 seconds: 64.516129 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 760 (time 1790107539.50 total 10.00 last 75.97)
 - open/close 1486 (time 1790107549.52 total 20.03 last 72.42)
 - open/close 2253 (time 1790107559.53 total 30.04 last 76.65)
 - open/close 3016 (time 1790107569.53 total 40.04 last 76.27)
 - open/close 3684 (time 1790107579.54 total 50.05 last 66.75)
 - open/close 4499 (time 1790107589.55 total 60.06 last 81.41)
 - open/close 5276 (time 1790107599.55 total 70.06 last 77.68)
 - open/close 6027 (time 1790107609.57 total 80.07 last 75.01)
 - open/close 6649 (time 1790107619.58 total 90.09 last 62.09)
 - open/close 7294 (time 1790107629.59 total 100.10 last 64.43)
total: 8000 open/close in 108.16 seconds: 73.97 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 96 seconds
lru_size = 4052
3955
ls -la is 18% faster with lru resize enabled
 - unlinked 0 (time 1790107757 ; total 0 ; last 0)
total: 8000 unlinks in 66 seconds: 121.212120 unlinks/second