On 16/11/2010 17:33, Remy Maucherat wrote: > On Tue, 2010-11-16 at 17:13 +0000, ma...@apache.org wrote: >> URL: http://svn.apache.org/viewvc?rev=1035699&view=rev >> Log: >> Session manager performance >> Narrow sync - few % improvement >> - * 1 thread - 2,422ms >> - * 2 threads - 5,047ms >> - * 4 threads - 13,188ms >> - * 16 threads - 54,422ms >> + * 1 thread - ~2,400ms >> + * 2 threads - ~4,700ms >> + * 4 threads - ~12,600ms >> + * 16 threads - ~53,700ms > > Hmm, not very significant.
On its own, no. With some of the other changes it starts to look rather better (I have a much more significant one for Windows coming up). I need to repeat these tests on Linux / OSX. > I knew about the relatively low session creation performance, but unless > there's a secure way to remove the sync on getRandomBytes, there's no > way to improve this. Having multiple (= thread local) random sources is > probably not a good idea. I thought of that but didn't like it either. See r1035701 for what I think is a better approach. Mark --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@tomcat.apache.org For additional commands, e-mail: dev-h...@tomcat.apache.org
