diff options
Diffstat (limited to 'docs/manual/platform/perf-hp.html')
| -rw-r--r-- | docs/manual/platform/perf-hp.html | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/docs/manual/platform/perf-hp.html b/docs/manual/platform/perf-hp.html deleted file mode 100644 index 9a88c4b08e..0000000000 --- a/docs/manual/platform/perf-hp.html +++ /dev/null @@ -1,100 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" - "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> - -<html xmlns="http://www.w3.org/1999/xhtml"> - <head> - <meta name="generator" content="HTML Tidy, see www.w3.org" /> - - <title>Running a High-Performance Web Server on HPUX</title> - </head> - <!-- Background white, links blue (unvisited), navy (visited), red (active) --> - - <body bgcolor="#FFFFFF" text="#000000" link="#0000FF" - vlink="#000080" alink="#FF0000"> - <a id="initial" name="initial"> </a> - <!--#include virtual="header.html" --> - - - <h1 align="CENTER">Running a High-Performance Web Server for - HPUX</h1> -<pre> -Date: Wed, 05 Nov 1997 16:59:34 -0800 -From: Rick Jones <<a -href="mailto:raj@cup.hp.com">raj@cup.hp.com</a>> -Reply-To: raj@cup.hp.com -Organization: Network Performance -Subject: HP-UX tuning tips -</pre> - Here are some tuning tips for HP-UX to add to the tuning page. - - <p>For HP-UX 9.X: Upgrade to 10.20<br /> - For HP-UX 10.[00|01|10]: Upgrade to 10.20</p> - - <p>For HP-UX 10.20:</p> - - <p>Install the latest cumulative ARPA Transport Patch. This - will allow you to configure the size of the TCP connection - lookup hash table. The default is 256 buckets and must be set - to a power of two. This is accomplished with adb against the - *disc* image of the kernel. The variable name is tcp_hash_size. - Notice that it's critically important that you use "W" to write - a 32 bit quantity, not "w" to write a 16 bit value when - patching the disc image because the tcp_hash_size variable is a - 32 bit quantity.</p> - - <p>How to pick the value? Examine the output of <a - href="ftp://ftp.cup.hp.com/dist/networking/tools/connhist">ftp://ftp.cup.hp.com/dist/networking/tools/connhist</a> - and see how many total TCP connections exist on the system. You - probably want that number divided by the hash table size to be - reasonably small, say less than 10. Folks can look at HP's - SPECweb96 disclosures for some common settings. These can be - found at <a - href="http://www.specbench.org/">http://www.specbench.org/</a>. - If an HP-UX system was performing at 1000 SPECweb96 connections - per second, the TIME_WAIT time of 60 seconds would mean 60,000 - TCP "connections" being tracked.</p> - - <p>Folks can check their listen queue depths with <a - href="ftp://ftp.cup.hp.com/dist/networking/misc/listenq">ftp://ftp.cup.hp.com/dist/networking/misc/listenq</a>.</p> - - <p>If folks are running Apache on a PA-8000 based system, they - should consider "chatr'ing" the Apache executable to have a - large page size. This would be "chatr +pi L <BINARY>." - The GID of the running executable must have MLOCK privileges. - Setprivgrp(1m) should be consulted for assigning MLOCK. The - change can be validated by running Glance and examining the - memory regions of the server(s) to make sure that they show a - non-trivial fraction of the text segment being locked.</p> - - <p>If folks are running Apache on MP systems, they might - consider writing a small program that uses mpctl() to bind - processes to processors. A simple pid % numcpu algorithm is - probably sufficient. This might even go into the source - code.</p> - - <p>If folks are concerned about the number of FIN_WAIT_2 - connections, they can use nettune to shrink the value of - tcp_keepstart. However, they should be careful there - - certainly do not make it less than oh two to four minutes. If - tcp_hash_size has been set well, it is probably OK to let the - FIN_WAIT_2's take longer to timeout (perhaps even the default - two hours) - they will not on average have a big impact on - performance.</p> - - <p>There are other things that could go into the code base, but - that might be left for another email. Feel free to drop me a - message if you or others are interested.</p> - - <p>sincerely,</p> - - <p>rick jones<br /> - <a - href="http://www.cup.hp.com/netperf/NetperfPage.html">http://www.cup.hp.com/netperf/NetperfPage.html</a></p> - <hr /> - - <h3 align="CENTER">Apache HTTP Server Version 1.3</h3> - <a href="./"><img src="../images/index.gif" alt="Index" /></a> - <a href="../"><img src="../images/home.gif" alt="Home" /></a> - </body> -</html> - |