[APACHE DOCUMENTATION]

Hints on Running a High-Performance Web Server

Running Apache on a heavily loaded web server, one often encounters problems related to the machine and OS configuration. "Heavy" is relative, of course - but if you are seeing more than a couple hits per second on a sustained basis you should consult the pointers on this page. In general the suggestions involve how to tune your kernel for the heavier TCP load, hardware/software conflicts that arise, etc.

A/UX (Apple's UNIX)

If you are running Apache on A/UX, a page that gives some helpful performance hints (concerning the listen() queue and using virtual hosts) can be found here


BSD-based (BSDI, FreeBSD, etc)

Quick and detailed performance tuning hints for BSD-derived systems.


Digital UNIX

We have some newsgroup postings on how to tune Digital UNIX 3.2 and 4.0.


Hewlett-Packard

Some documentation on tuning HP machines can be found at http://www.software.hp.com/internet/perf/tuning.html.


SGI


Solaris 2.4

The Solaris 2.4 TCP implementation has a few inherent limitations that only became apparent under heavy loads. This has been fixed to some extent in 2.5 (and completely revamped in 2.6), but for now consult the following URL for tips on how to expand the capabilities if you are finding slowdowns and lags are hurting performance.


SunOS 4.x

More information on tuning SOMAXCONN on SunOS can be found at http://www.islandnet.com/~mark/somaxconn.html.


The manual translated into Japanese is here.

Index Home