On Sun, 17 Apr 2005, Robert Watson wrote:
I'd like to confirm that for the first two patches, for interesting workloads, performance generally improves, and that stability doesn't degrade. For the third partch, I'd like to quantify the cost of the changes for interesting workloads, and likewise confirm no loss of stability.
Just an FYI on some earlier testing done by a couple of people:
- Bosko Milekic has reported that the UMA changes resulted in a performance increase in his high bandwidth denial of service testing, as well as a decreased occurence of livelock.
- Scott Long has reported that the UMA changes produced a performance increase in MySQL testing. However, that the combined malloc + mbuf + uma patches produced a slight decrease in performance. He has not yet been able to try them split out to see if there's another factor at work, or which elements are causing the problem.
- I've observed clear micro-benchmark improvements with the UMA cache in place for high speed UDP packet generation in userland, as well as syscall tests for the allocation/free of pipes and sockets.
Robert N M Watson _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
