== sanity test 124b: lru resize (performance test) ================================================================================= 12:15:58 (1789143358)
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 844 (time 1789143372.97 total 10.01 last 84.36)
 - open/close 1537 (time 1789143382.97 total 20.01 last 69.30)
 - open/close 2136 (time 1789143392.97 total 30.01 last 59.89)
 - open/close 2949 (time 1789143402.97 total 40.01 last 81.27)
 - open/close 3761 (time 1789143412.98 total 50.02 last 81.12)
 - open/close 4503 (time 1789143422.99 total 60.03 last 74.15)
 - open/close 5359 (time 1789143432.99 total 70.03 last 85.59)
 - open/close 6303 (time 1789143443.01 total 80.05 last 94.19)
 - open/close 7296 (time 1789143453.02 total 90.06 last 99.25)
total: 8000 open/close in 97.42 seconds: 82.12 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 168 seconds
lru_size = 400
400
 - unlinked 0 (time 1789143638 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 806 (time 1789143752.15 total 10.00 last 80.57)
 - open/close 1523 (time 1789143762.15 total 20.01 last 71.69)
 - open/close 2532 (time 1789143772.16 total 30.01 last 100.82)
 - open/close 3429 (time 1789143782.16 total 40.02 last 89.65)
 - open/close 4395 (time 1789143792.17 total 50.02 last 96.55)
 - open/close 5145 (time 1789143802.17 total 60.03 last 74.97)
 - open/close 5896 (time 1789143812.18 total 70.04 last 75.03)
 - open/close 6819 (time 1789143822.19 total 80.04 last 92.24)
 - open/close 7670 (time 1789143832.19 total 90.04 last 85.09)
total: 8000 open/close in 94.38 seconds: 84.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4006
4001
ls -la is 49% faster with lru resize enabled
 - unlinked 0 (time 1789143941 ; total 0 ; last 0)
total: 8000 unlinks in 51 seconds: 156.862747 unlinks/second