Re: performance modifications

From: Sunil Sunder Raj (unixtools_at_hotmail.com)
Date: 04/09/05

  • Next message: ray_at_redshift.com: "Re: performance modifications" 
    To: ray@redshift.com, joseph.koshy@gmail.com
Date: Sat, 09 Apr 2005 10:10:06 +0000

    Hi,
    There a a few apache config changes which really bump up the performance.

    Disable mod_status.so which decreases a few system calls.
    Disable FollowSymLinks wherever used.
    If possible remove the <Directory /> directive.

    Regards
    SSR

    >From: ray@redshift.com
    >To: Joseph Koshy <joseph.koshy@gmail.com>
    >CC: freebsd-performance@freebsd.org
    >Subject: Re: performance modifications
    >Date: Thu, 10 Mar 2005 19:30:15 -0800
    >
    >| > 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
    >| http://www.cs.princeton.edu/~yruan/debox/debox.pdf
    >
    >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!
    >
    >Ray
    >
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