== sanity test 124b: lru resize (performance test) ================================================================================= 22:25:21 (1786760721)
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 838 (time 1786760736.58 total 10.00 last 83.78)
 - open/close 1660 (time 1786760746.58 total 20.00 last 82.18)
 - open/close 2448 (time 1786760756.58 total 30.01 last 78.75)
 - open/close 3357 (time 1786760766.59 total 40.01 last 90.88)
 - open/close 4242 (time 1786760776.59 total 50.02 last 88.44)
 - open/close 5084 (time 1786760786.60 total 60.03 last 84.15)
 - open/close 6028 (time 1786760796.62 total 70.05 last 94.23)
 - open/close 6920 (time 1786760806.63 total 80.06 last 89.09)
 - open/close 7728 (time 1786760816.63 total 90.06 last 80.77)
total: 8000 open/close in 93.52 seconds: 85.54 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 164 seconds
lru_size = 400
400
 - unlinked 0 (time 1786760994 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 834 (time 1786761108.73 total 10.02 last 83.27)
 - open/close 1631 (time 1786761118.74 total 20.03 last 79.61)
 - open/close 2550 (time 1786761128.75 total 30.03 last 91.84)
 - open/close 3584 (time 1786761138.75 total 40.04 last 103.34)
 - open/close 4507 (time 1786761148.76 total 50.04 last 92.26)
 - open/close 5383 (time 1786761158.76 total 60.05 last 87.54)
 - open/close 6299 (time 1786761168.77 total 70.06 last 91.55)
 - open/close 7165 (time 1786761178.78 total 80.06 last 86.54)
 - open/close 7997 (time 1786761188.78 total 90.07 last 83.17)
total: 8000 open/close in 90.09 seconds: 88.80 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 48% faster with lru resize enabled
 - unlinked 0 (time 1786761297 ; total 0 ; last 0)
total: 8000 unlinks in 55 seconds: 145.454544 unlinks/second