== sanity test 124b: lru resize (performance test) ================================================================================= 10:44:51 (1788619491)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1007 (time 1788619506.05 total 10.00 last 100.67)
 - open/close 1960 (time 1788619516.06 total 20.01 last 95.20)
 - open/close 2861 (time 1788619526.06 total 30.02 last 90.05)
 - open/close 3763 (time 1788619536.07 total 40.03 last 90.14)
 - open/close 4704 (time 1788619546.07 total 50.03 last 94.05)
 - open/close 5521 (time 1788619556.07 total 60.03 last 81.70)
 - open/close 6297 (time 1788619566.08 total 70.04 last 77.57)
 - open/close 7106 (time 1788619576.09 total 80.05 last 80.78)
 - open/close 7939 (time 1788619586.11 total 90.07 last 83.17)
total: 8000 open/close in 90.80 seconds: 88.11 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 142 seconds
lru_size = 400
400
 - unlinked 0 (time 1788619737 ; total 0 ; last 0)
total: 8000 unlinks in 92 seconds: 86.956520 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 912 (time 1788619844.35 total 10.00 last 91.17)
 - open/close 1752 (time 1788619854.36 total 20.01 last 83.97)
 - open/close 2535 (time 1788619864.36 total 30.01 last 78.30)
 - open/close 3386 (time 1788619874.36 total 40.02 last 85.03)
 - open/close 4204 (time 1788619884.37 total 50.02 last 81.74)
 - open/close 5142 (time 1788619894.38 total 60.03 last 93.71)
 - open/close 6132 (time 1788619904.39 total 70.04 last 98.90)
 - open/close 7036 (time 1788619914.39 total 80.04 last 90.40)
 - open/close 7954 (time 1788619924.39 total 90.04 last 91.80)
total: 8000 open/close in 90.55 seconds: 88.35 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 84 seconds
lru_size = 4006
4001
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1788620028 ; total 0 ; last 0)
total: 8000 unlinks in 52 seconds: 153.846161 unlinks/second