performance modifications

ray at ray at
Thu Mar 10 19:30:40 PST 2005

| > I'm wondering if anyone on the list has a good source for 
| > the major sysctl settings and/or kernel settings that can be 
| > modified in order to bring up the performance level on a 
| > FreeBSD 5.3 machine that is used with apache under heavy
| > load.
| There is the tuning(7) manual page.

Yes, have read those from start to finish.  Just wondering if there are other
areas to look into that may not be covered there.
| There are better web servers than Apache for demanding loads;
| ones that used a non-forking, event-driven I/O model.  
| Aolserver and thttpd come to mind.

I tried thttpd a number of years ago, but due to its limited cgi support (at
least at the time) I didn't do too much with it.  It did seem fast, however.
| Yaoping Ruan and Vivek Pai from Princeton have reported 
| excellent results with their "Flash" [1] web server.  While
| many of their recommended changes to FreeBSD have been folded
| into the base source, I'm not sure how many popular web-servers
| are using these speedups.
| [1] Making the "Box" Transparent: System Call Performance as a
|     First-class Result
|     Yaoping Ruan, Vivek Pai

Okay, great, thanks.  I'll check into that area.  My biggest problem right now
is that PHP brings down the speed of everything.  I may have to go back to Perl
and use mod_perl or look into some other alternatives.  The main thing I wanted
to do was get the OS running at it's best, so the benchmarks were not being
affected by some area of FreeBSD.  

Anyway, thanks very much for the info!


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