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Re: Lost patch / performance improvement
- To: "Boehm, Hans" <hans_boehm at hp dot com>
- Subject: Re: Lost patch / performance improvement
- From: Jeff Sturm <jsturm at one-point dot com>
- Date: Wed, 24 Oct 2001 20:08:50 -0400 (EDT)
- cc: "'java-patches at gcc dot gnu dot org'" <java-patches at gcc dot gnu dot org>, "'tromey at redhat dot com'" <tromey at redhat dot com>
On Wed, 24 Oct 2001, Boehm, Hans wrote:
> This piece of the parallel GC patch for the trunk appears to have gotten
> lost, probably because I forgot to send it to Tom earlier. Without this
> patch, not many things are likely to take advantage of thread local
> allocation buffers. Thus I suspect it makes a significant performance
> difference, especially on multiprocessors. I have been running with this in
> a modified tree for a long time. If someone could verify that this works in
> the current unmodified tree (on a Linux platform where THREAD_LOCAL_ALLOC is
> set), and approve it, I can check it in.
This works fine for me on i686-pc-linux-gnu. And it is a clear
performance win on the tests I tried.
Jeff