Difference between pages "Package:Valgrind" and "Package:Varnish"

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{{Ebuild
 
{{Ebuild
|Summary=An Open Source memory debugger for GNU/Linux.
+
|Summary=Varnish is a state-of-the-art, high-performance HTTP accelerator
|CatPkg=dev-util/valgrind
+
|CatPkg=www-servers/varnish
 
|Maintainer=
 
|Maintainer=
|Homepage=http://www.valgrind.org
 
 
}}
 
}}
 +
__TOC__
 +
'''Varnish''' is a webcache & http accelerator.  Varnish will either serve cached content, or retireve content from the server, and cache it.  Varnish will reduce I/O pressure from webservers.
 +
 +
==Install==
 +
===Emerge===
 +
 +
Install {{Package|www-servers/varnish}}:
 +
<console>###i## emerge www-servers/varnish</console>
 +
 +
==Configuration==
 +
 +
Configuration is controlled by /etc/varnish/default.vcl & /etc/conf.d/varnishd
 +
 +
{{file|name=/etc/varnish/default.vcl|desc=varnish configuration file|body=
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vcl 4.0;
 +
backend default {
 +
    .host = "127.0.0.1";
 +
    .port = "8080";
 +
}
 +
}}
 +
 +
{{file|name=/etc/conf.d/varnishd|desc=varnish configuration file|body=
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VARNISHD="/usr/sbin/varnishd"
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VARNISHADM="/usr/bin/varnishadm"
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CONFIGFILE="/etc/varnish/default.vcl"
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VARNISHD_OPTS="-a 127.0.0.1:80"
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VARNISHD_OPTS="${VARNISHD_OPTS} -u varnish -g varnish"
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}}
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 +
Varnish will fetch data from localhost:8080 and serve accelerated proxy data on localhost:80
 +
 +
== BootService ==
 +
 +
To start varnish immediately:
 +
<console>###i## rc-service varnishd start</console>
 +
 +
To start varnish at boot:
 +
<console>###i## rc-update add varnishd default</console>
 +
 +
== Verification ==
 +
To verify that your traffic is going through varnish.
 +
<console>$##i## curl -I https://www.varnish-cache.org/</console>
 +
 +
== Benchmarking ==
 +
If your system has apache installed apache benchmark can show the power of varnish.  The examples shown are running 500 requests with concurrency of 100 hits.
 +
 +
 +
ab against a 3 worker cluster mode puma server
 +
<console>###i## ab -n 500 -c 100 http://127.0.0.1:3000/index.html | grep Request</console>
 +
Requests per second:    110.92 [#/sec] (mean)
 +
 +
 +
ab against the same server served through varnish
 +
<console>###i## ab -n 500 -c 100 http://127.0.0.1/index.html | grep Request</console>
 +
Requests per second:    10268.42 [#/sec] (mean)
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 +
[[Category:Server]]
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[[Category:Daemons]]
  
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{{EbuildFooter}}
 
{{EbuildFooter}}

Revision as of 22:09, September 12, 2014

www-servers/varnish


Source Repository:Repository:Gentoo Portage Tree


Summary: Varnish is a state-of-the-art, high-performance HTTP accelerator

Use Flags

tools
Build additional tools: varnishhist, varnishstat, varnishtop, varnishsizes
jemalloc
Use dev-libs/jemalloc for allocations

News

Drobbins

IP Space Migration Continues

All Funtoo user containers in the 8.28 IP space will be moving into our new IP space (172.97) over the next few days. If you have DNS set up -- be sure to watch your container and update to the new IP! container.host.funtoo.org DNS will be updated after the move.
2015-08-27 by Drobbins
Drobbins

Funtoo Hosting IP Move

Funtoo user containers with IPs in the 72.18.x.x range will be gradually migrating to new IP addresses this week. If you have DNS entries for your containers, please be aware that your DNS will need to be updated.
2015-08-11 by Drobbins
Drobbins

New ARM Stages

New ARM Stages, built with a new toolchain, are now hitting mirrors. Existing ARM users should re-install using these stages (dated Aug 3, 2015 or later,) rather than upgrade using emerge.
2015-08-06 by Drobbins
More...

Varnish

Tip

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Varnish is a webcache & http accelerator. Varnish will either serve cached content, or retireve content from the server, and cache it. Varnish will reduce I/O pressure from webservers.

Install

Emerge

Install Package:Varnish:

# emerge www-servers/varnish

Configuration

Configuration is controlled by /etc/varnish/default.vcl & /etc/conf.d/varnishd

/etc/varnish/default.vcl - varnish configuration file
vcl 4.0;
backend default {
    .host = "127.0.0.1";
    .port = "8080";
}
/etc/conf.d/varnishd - varnish configuration file
VARNISHD="/usr/sbin/varnishd"
VARNISHADM="/usr/bin/varnishadm"
CONFIGFILE="/etc/varnish/default.vcl"
VARNISHD_OPTS="-a 127.0.0.1:80"
VARNISHD_OPTS="${VARNISHD_OPTS} -u varnish -g varnish"

Varnish will fetch data from localhost:8080 and serve accelerated proxy data on localhost:80

BootService

To start varnish immediately:

# rc-service varnishd start

To start varnish at boot:

# rc-update add varnishd default

Verification

To verify that your traffic is going through varnish.

$ curl -I https://www.varnish-cache.org/

Benchmarking

If your system has apache installed apache benchmark can show the power of varnish. The examples shown are running 500 requests with concurrency of 100 hits.


ab against a 3 worker cluster mode puma server

# ab -n 500 -c 100 http://127.0.0.1:3000/index.html | grep Request

Requests per second: 110.92 [#/sec] (mean)


ab against the same server served through varnish

# ab -n 500 -c 100 http://127.0.0.1/index.html | grep Request

Requests per second: 10268.42 [#/sec] (mean)