== sanity test 124b: lru resize (performance test) ================================================================================= 20:14:49 (1786320889)
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 880 (time 1786320903.85 total 10.01 last 87.94)
 - open/close 1746 (time 1786320913.86 total 20.01 last 86.56)
 - open/close 2532 (time 1786320923.87 total 30.02 last 78.52)
 - open/close 3149 (time 1786320933.87 total 40.02 last 61.68)
 - open/close 3741 (time 1786320943.88 total 50.03 last 59.17)
 - open/close 4452 (time 1786320953.88 total 60.03 last 71.07)
 - open/close 5295 (time 1786320963.89 total 70.05 last 84.18)
 - open/close 6072 (time 1786320973.90 total 80.05 last 77.68)
 - open/close 6907 (time 1786320983.91 total 90.06 last 83.43)
 - open/close 7802 (time 1786320993.91 total 100.06 last 89.50)
total: 8000 open/close in 103.16 seconds: 77.55 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 400
400
 - unlinked 0 (time 1786321108 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 848 (time 1786321222.16 total 10.00 last 84.78)
 - open/close 1719 (time 1786321232.16 total 20.00 last 87.08)
 - open/close 2583 (time 1786321242.17 total 30.01 last 86.34)
 - open/close 3475 (time 1786321252.17 total 40.02 last 89.16)
 - open/close 4485 (time 1786321262.18 total 50.03 last 100.89)
 - open/close 5281 (time 1786321272.19 total 60.04 last 79.53)
 - open/close 6048 (time 1786321282.20 total 70.04 last 76.63)
 - open/close 6928 (time 1786321292.21 total 80.05 last 87.93)
 - open/close 7696 (time 1786321302.21 total 90.05 last 76.80)
total: 8000 open/close in 93.85 seconds: 85.24 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4052
3955
ls -la is 10% faster with lru resize enabled
 - unlinked 0 (time 1786321415 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second