JNI performace check

Hi all.I want to use JNI in the middleware.However, I heard JNI uses much resources.I want to check JNI performace check.What do I do?
[169 byte] By [peeppeepa] at [2007-10-3 9:11:13]
# 1
I have question too.When java thread call native thread to use JNI, the other java thread is blocking.I used PBP(personal basis profile).Why does other java thread block?I hope to explain hdetail principal?Regard.
peeppeepa at 2007-7-15 4:23:20 > top of Java-index,Java HotSpot Virtual Machine,Specifications...
# 2

1. Question about "resource" use is vague. So the first thing to do is figure ourt what it is you are worried about: speed of execution? speed in-and-out of java? memeory utilization?

2. Your second move should be to write a small program to test it - find out if the performance or memory use is acceptable.

bschauwejavaa at 2007-7-15 4:23:20 > top of Java-index,Java HotSpot Virtual Machine,Specifications...