== sanity test 124b: lru resize (performance test) ================================================================================= 02:57:25 (1786085845)
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 975 (time 1786085860.42 total 10.00 last 97.50)
 - open/close 1775 (time 1786085870.43 total 20.01 last 79.90)
 - open/close 2623 (time 1786085880.44 total 30.02 last 84.74)
 - open/close 3361 (time 1786085890.44 total 40.02 last 73.76)
 - open/close 4127 (time 1786085900.45 total 50.03 last 76.57)
 - open/close 5047 (time 1786085910.45 total 60.03 last 91.97)
 - open/close 5862 (time 1786085920.45 total 70.03 last 81.49)
 - open/close 6664 (time 1786085930.46 total 80.04 last 80.14)
 - open/close 7638 (time 1786085940.47 total 90.05 last 97.34)
total: 8000 open/close in 95.32 seconds: 83.93 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 161 seconds
lru_size = 400
400
 - unlinked 0 (time 1786086119 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 745 (time 1786086234.77 total 10.00 last 74.49)
 - open/close 1573 (time 1786086244.79 total 20.02 last 82.64)
 - open/close 2516 (time 1786086254.80 total 30.03 last 94.21)
 - open/close 3476 (time 1786086264.80 total 40.03 last 95.99)
 - open/close 4359 (time 1786086274.81 total 50.04 last 88.23)
 - open/close 5299 (time 1786086284.81 total 60.04 last 93.97)
 - open/close 6317 (time 1786086294.82 total 70.05 last 101.73)
 - open/close 7275 (time 1786086304.83 total 80.05 last 95.75)
total: 8000 open/close in 87.53 seconds: 91.39 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 99 seconds
lru_size = 4006
4001
ls -la is 38% faster with lru resize enabled
 - unlinked 0 (time 1786086433 ; total 0 ; last 0)
total: 8000 unlinks in 54 seconds: 148.148148 unlinks/second