== sanity test 124b: lru resize (performance test) ================================================================================= 19:36:31 (1746142591)
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 1037 (time 1746142604.85 total 10.01 last 103.64)
 - open/close 2053 (time 1746142614.86 total 20.01 last 101.53)
 - open/close 2973 (time 1746142624.87 total 30.02 last 91.90)
 - open/close 3821 (time 1746142634.87 total 40.03 last 84.78)
 - open/close 4858 (time 1746142644.88 total 50.03 last 103.66)
 - open/close 5855 (time 1746142654.89 total 60.04 last 99.60)
 - open/close 6895 (time 1746142664.90 total 70.05 last 103.86)
 - open/close 7826 (time 1746142674.91 total 80.06 last 93.02)
total: 8000 open/close in 81.88 seconds: 97.70 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 1746142858 ; total 0 ; last 0)
total: 8000 unlinks in 79 seconds: 101.265823 unlinks/second
striped dir -i0 -c2 -H all_char /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 942 (time 1746142949.82 total 10.00 last 94.16)
 - open/close 1896 (time 1746142959.82 total 20.01 last 95.32)
 - open/close 2826 (time 1746142969.83 total 30.02 last 92.97)
 - open/close 3846 (time 1746142979.85 total 40.04 last 101.78)
 - open/close 4819 (time 1746142989.85 total 50.04 last 97.28)
 - open/close 5790 (time 1746142999.85 total 60.04 last 97.07)
 - open/close 6857 (time 1746143009.87 total 70.06 last 106.53)
 - open/close 7850 (time 1746143019.88 total 80.06 last 99.25)
total: 8000 open/close in 81.48 seconds: 98.18 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 48 seconds
lru_size = 4006
4001
ls -la is 72% faster with lru resize enabled
 - unlinked 0 (time 1746143079 ; total 0 ; last 0)
total: 8000 unlinks in 47 seconds: 170.212769 unlinks/second