[squid-users] dynamin content "pattern_refresh".

From: Beto Moreno <pamrtj_at_gmail.com>
Date: Tue, 22 May 2012 16:54:35 -0700

 I had been working on the settings:

 refresh_pattern.

 The doc say that is better for the new websites that use dynamic
content and a friend here at the list explain me the difference.

 My test was simple:

 use 2 browsers: firefox/iexplore.
 Run the test twice for each site.

 first run
 firefox site1, site2,site3,site4
 iexplore site1, site2,site3,site4

 run ccleaner, repeat the test.

 run srg to get my squid-cache peformance and free-sa.

 They where 3 settings I try and make the same test.

 NOTE: every time I start a setting, I delete my cache, clean my logs
and start from 0.

 setting 1 default settings
 acl QUERY urlpath_regex cgi-bin \?
 cache deny QUERY

 setting 2 new way:
 disable the old way:

 #acl QUERY urlpath_regex cgi-bin \?
 #cache deny QUERY
 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
 refresh_pattern . 0 20% 4320

  setting 2:

refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern -i \.(gif|png|jpg|jpeg|ico)$ 10080 90% 43200
refresh_pattern -i \.index.(html|htm)$ 0 40% 10080
refresh_pattern -i \.(html|htm|css|js)$ 1440 40% 40320
refresh_pattern . 0 20% 4320

 Them after I finish my test I start reviewing my logs and compare,
the sites I use was:

yahoo.com
osnews.com
frontera,info(local news paper)
noticias,nvs.com
centos.org

 I didn't interact with the site, just get to the first page, finish
loading and done, continue with the next one.

Once I check my reports I didn't see to much difference, I found just
1 log that the old way didn't "cache" 1 thing, check:

setting 1/2 have this:

1337667655.898 0 192.168.50.100 TCP_MEM_HIT/200 21280 GET
http://www.frontera.info/WebResource.axd? - NONE/-
application/x-javascript

setting 1 TCP_MISS.

Example of part my logs:

1337667655.596 43 192.168.50.100 TCP_MISS/302 603 GET
http://frontera.info/ - DIRECT/216.240.181.163 text/html
1337667655.748 54 192.168.50.100 TCP_MISS/200 1454 GET
http://www.frontera.info/HojasEstilos/Horoscopos.css -
DIRECT/216.240.181.163 text/css
1337667655.749 52 192.168.50.100 TCP_MISS/200 1740 GET
http://www.frontera.info/Includes/Controles/LosEconomicos.css -
DIRECT/216.240.181.163 text/css
1337667655.749 49 192.168.50.100 TCP_MISS/200 1557 GET
http://www.frontera.info/Includes/Controles/ReporteroCiudadano.css -
DIRECT/216.240.181.163 text/css
1337667655.754 54 192.168.50.100 TCP_MISS/200 1697 GET
http://www.frontera.info/Includes/Controles/Elementos.css -
DIRECT/216.240.181.163 text/css
1337667655.780 24 192.168.50.100 TCP_MISS/200 1406 GET
http://www.frontera.info/Includes/Controles/Finanzas.css -
DIRECT/216.240.181.163 text/css
1337667655.817 124 192.168.50.100 TCP_MISS/200 21639 GET
http://www.frontera.info/HojasEstilos/Estilos2009.css -
DIRECT/216.240.181.163 text/css
1337667655.898 0 192.168.50.100 TCP_MEM_HIT/200 21280 GET
http://www.frontera.info/WebResource.axd? - NONE/-
application/x-javascript
1337667655.903 20 192.168.50.100 TCP_MISS/200 1356 GET
http://www.frontera.info/Interactivos/lib/jquery.jcarousel.css -
DIRECT/216.240.181.163 text/css
1337667655.907 308 192.168.50.100 TCP_MISS/200 116552 GET
http://www.frontera.info/Home.aspx - DIRECT/216.240.181.163 text/html
1337667655.935 23 192.168.50.100 TCP_MISS/200 3934 GET
http://www.frontera.info/Interactivos/skins/fotos/skin.css -
DIRECT/216.240.181.163 text/css
1337667655.966 27 192.168.50.100 TCP_MISS/200 3995 GET
http://www.frontera.info/Interactivos/skins/elementos/skin.css -
DIRECT/216.240.181.163 text/css
1337667655.971 23 192.168.50.100 TCP_MISS/200 4260 GET
http://www.frontera.info/HojasEstilos/ui.tabs.css -
DIRECT/216.240.181.163 text/css
1337667655.972 24 192.168.50.100 TCP_MISS/200 4953 GET
http://www.frontera.info/HojasEstilos/thickbox.css -
DIRECT/216.240.181.163 text/css
1337667655.993 21 192.168.50.100 TCP_MISS/200 4380 GET
http://www.frontera.info/js/finanzas.js - DIRECT/216.240.181.163
application/x-javascript
1337667655.997 47 192.168.50.100 TCP_MISS/200 9341 GET
http://www.frontera.info/Interactivos/lib/jquery.jcarousel.pack.js -
DIRECT/216.240.181.163 application/x-javascript
1337667656.023 25 192.168.50.100 TCP_MISS/200 4239 GET
http://www.frontera.info/videos/external_script.js -
DIRECT/216.240.181.163 application/x-javascript

3 settings same TCP_MISS.

I was thinking that maybe I will get more TCP_HIT, MEM_HIT, but no.
noticiasmvs.com a lot HIT's but with the 3 settings.

do this site disable caching their site? exist a way to find out?
what could cause to still get a lot of MISS?
where my settings wrong?
my test was not the best way?
how can I see if this new settings make a difference?

Any input will be appreciated, thanks for your time!!!

I'm using squid 2.7.x
Received on Tue May 22 2012 - 23:54:42 MDT

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