From: brian Date: Thu, 6 Nov 1997 02:55:08 +0000 (+0000) Subject: PR: X-Git-Tag: APACHE_1_3b3~17 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=42f53c0c938446aeb058977feb526048706cf700;p=thirdparty%2Fapache%2Fhttpd.git PR: Added notes about HP git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@79514 13f79535-47bb-0310-9956-ffa450edef68 --- diff --git a/docs/manual/misc/index.html b/docs/manual/misc/index.html index d438d0e2c7d..b8a5608b32f 100644 --- a/docs/manual/misc/index.html +++ b/docs/manual/misc/index.html @@ -91,6 +91,12 @@

Extracts of USENET postings describing how to optimize Apache performance on Digital UNIX systems.

Email from an HP engineer on how to optimize HP-UX 10.20. +

Performance Notes (General) diff --git a/docs/manual/platform/perf-hp.html b/docs/manual/platform/perf-hp.html new file mode 100644 index 00000000000..0bf286747df --- /dev/null +++ b/docs/manual/platform/perf-hp.html @@ -0,0 +1,124 @@ + + + +Running a High-Performance Web Server on HPUX + + + + + +

+ Apache HTTP Server Version 1.3 +

+ + +

Running a High-Performance Web Server for HPUX

+ +

+Date: Wed, 05 Nov 1997 16:59:34 -0800
+From: Rick Jones <raj@cup.hp.com>
+Reply-To: raj@cup.hp.com
+Organization: Network Performance
+Subject: HP-UX tuning tips
+

+ +Here are some tuning tips for HP-UX to add to the tuning page. + +

+ +For HP-UX 9.X: Upgrade to 10.20
+For HP-UX 10.[00|01|10]: Upgrade to 10.20 + +

+ +For HP-UX 10.20: + +

+ +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. + +

+ +How to pick the value? Examine the output of + +ftp://ftp.cup.hp.com/dist/networking/tools/connhist 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 +http://www.specbench.org/. 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. + +

+ +Folks can check their listen queue depths with + +ftp://ftp.cup.hp.com/dist/networking/misc/listenq. + +

+ +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 ." The GID of the running executable +must have MLOCK priviledges. 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. + +

+ +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. + +

+ +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. + +

+ +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. + +

+ +sincerely, + +

+ +rick jones
+ +http://www.cup.hp.com/netperf/NetperfPage.html + +

+ +

+ Apache HTTP Server Version 1.3 +

+ +

+ + + diff --git a/docs/manual/platform/perf.html b/docs/manual/platform/perf.html index 843669fdb2d..533ef774b64 100644 --- a/docs/manual/platform/perf.html +++ b/docs/manual/platform/perf.html @@ -26,6 +26,7 @@ for the heavier TCP load, hardware/software conflicts that arise, etc.

A/UX (Apple's UNIX)

BSD-based (BSDI, FreeBSD, etc)

Digital UNIX +

HPUX

Linux

SGI

Solaris