Re: cache statistics

["Eric Dean" <eric@crystalballinc.com>]

I took a look at an ISPs forward proxy cache stats from about 300GB of data and have found the following:

Served from cache 45%
Loaded in cache from source 21%
Non cacheable 32%

A breakdown of the non cacheable stats shows:
Pragma no-cache: 10.7%
Password provided: 0.8%
Data in Request: < 0.1%
Not a Get Request: 68.7%   (PUT, HEAD, POST, DELETE, LINK, and UNLINK)
Cookie in Response: 3.3%
Password Required: 0%
Negative Response: 12.5%
Client Unique CGI: 3.8%


On Mon, 8 Jan 2001 Renu Tewari  wrote:
> Folks:
>    Does anyone have pointers to recent  statistics (later than 1998) 
> on what fraction of  web pages (and bytes) are static html and images.
> Similarly what fraction contain cookies/are explicitly marked 
> uncacheable /queries/dynamically generated/require database access. 
> 
> There was a claim made in a presentation that less than 10% of the data 
> (bytes) accessed on the web today is static html/images. Around 51% of 
> accessed web pages contain cookies and 48% are explicitly marked uncacheable 
> (with cache_control:private).  
> Are there any references available to corroborate or contradict this? 
> 
> 
> regards
> Renu
>  
> 


Eric Dean
President, Crystal Ball Inc.
W 703-322-8000
F 703-322-8010 
M 703-597-6921