Messages in this thread | | | Date | Thu, 3 Jun 1999 18:28:21 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: Linux and Apache performance, Update |
| |
On Thu, 3 Jun 1999, Juergen Schmidt wrote:
>Some quite interesting results are about SMP-Performnace and Andrea's >patches.
Unfortunately you was using apache not sleeping in accept(2) so the only improvement you had from my code cames from my VM/buffer redesign and I think from my rewrote of reschedule_idle() for SMP. The improvement that cames from my new VM code is clear from the graph where the working set is larger than memory.
In 2.2.9_andrea2 I was also releasing the kernel lock too many times and this bit is now fixed in my current tree (that's probably the reason the my tree was a bit slower under light load).
I think by telling apache to use my 2.2.9 accept-wake-one code (-DSINGLE_LISTEN_UNSERIALIZED_ACCEPT) + the fix for the kernel lock releasing (+ my all other VM/buffer/scheduler stuff) we could beat NT a _lot_ :)). And except my reschedule_idle() rewrite all my other stuff is all UP stuff that will apply to everybody out there :).
Andrea Arcangeli
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
| |