Re: Sorry for interrupting again :-(

From: Joe Cooper <joe@dont-contact.us>
Date: Wed, 10 Apr 2002 09:33:09 -0500

I don't think I can make it much clearer. You can't use the Polygraph
logs from cacheoffs as a source of URLs to run through your cache. If
you understood the other sentences surrounding that one, then you got my
meaning already (I repeated the concept several times, since I could
tell you were having trouble grasping what I was talking about).

maer727@sohu.com wrote:
> Hi, Joe pal!
>
> Sorry for interrupting again. I re-read your reply. And find a question.
> You mentioned, (the last paragrath)
>
> ///////////////////////////////////////////////////////////////////
> not for simulating a Polygraph benchmark run using a different utility
> ///////////////////////////////////////////////////////////////////
>
> What does that mean?
>
> Best regards,
> George, Ma
>
> ----- Original Message -----
> From: Joe Cooper
> To: maer727@sohu.com
> Cc: squid-dev@squid-cache.org
> Subject: Re: what means Bake-off?
> Sent: Wed Apr 10 18:20:14 CST 2002
>
>
>>Because they are not traces of 'internet' activity. They are the result
>>of benchmark run that uses entirely artificial URLs. Every run is
>>different, and every run is generated on the fly by the polygraph server
>>and client. They aren't useful for your purposes because you requested
>>a list of URLs that you could run through your Squid to test hit ratios.
>> The URLs generated during a Polygraph run do not resolve to a real
>>internet host--none of them exist on the internet.
>>
>>Get Polygraph (it's free). Read the docs for it. Try it. You'll then
>>understand what I'm talking about.
>>
>>What I'm getting at is that polygraph will be extremely useful for you.
>> There is no better cache benchmarking tool. /But/ the logs it
>>generates are only useful for creating benchmark result reports--not for
>>simulating a Polygraph benchmark run using a different utility. If you
>>want to reproduce a cache-off style benchmark, you've got to use
>>Polygraph. Logs from the cache-offs are useless unless you want to
>>analyze the results of servers that took part in the cache-offs--they
>>are not useful for reproducing the same conditions.
>>
>>maer727@sohu.com wrote:
>>
>>>Thanks, Joe pal!
>>>
>>>In your reply, you mentioned,
>>>
>>>////////////////////////////////////////////////
>>>only logs produced are the logs that are generated during the
>>>benchmark runs,
>>>////////////////////////////////////////////////
>>>
>>>I do not understand the meaning above, I am a newbie. :-) Can you give
>>>me a simple explanation? Why these logs are not useful for my purpose?
>>>
>>>Best regards,
>>>George, Ma
>>>
>>>
>>>----- Original Message -----
>>>
>>>From: Joe Cooper
>>>To: maer727@sohu.com
>>>Cc: hno@squid-cache.org ;squid-dev@squid-cache.org
>>>Subject: Re: what means Bake-off?
>>>Sent: Wed Apr 10 15:48:09 CST 2002
>>>
>>>
>>>
>>>>As I said in my description of the cacheoff events, the benchmarking
>>>>software used is Polygraph. Polygraph does not use real internet URLs
>>>>and the only logs produced are the logs that are generated during the
>>>>benchmark runs--these logs are not useful for the purpose you are asking
>>>>about.
>>>>
>>>>Polygraph is downloadable here:
>>>>
>>>>http://www.web-polygraph.org
>>>>
>>>>maer727@sohu.com wrote:
>>>>
>>>>
>>>>>Thanks, Henrik pal!
>>>>>
>>>>>I want to know where can I find the log files used in "Cache-off" ? I want to
>>>>>use the log files other prople are using to test my own LRU algorithm.
>>>>>
>>>>>Best regards,
>>>>>George, Ma
>>>>>
>>>>>----- Original Message -----
>>>>>From: Henrik Nordstrom
>>>>>To: maer727@sohu.com
>>>>>Cc: squid-dev@squid-cache.org
>>>>>Subject: Re: what means Bake-off?
>>>>>Sent: Wed Apr 10 14:11:50 CST 2002
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>>http://cacheoff.ircache.net/
>>>>>>
>>>>>>(this type of event is also known as Bake-off events)
>>>>>>
>>>>>>Regards
>>>>>>Henrik
>>>>>>
>>>>>>On Wednesday 10 April 2002 07:02, maer727@sohu.com wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>>Hi, pals!
>>>>>>>
>>>>>>>I often see this word "Bake-off" in documents. What means it?
>>>>>>>
>>>>>>>Anyone can give me a simple explanation?
>>>>>>>
>>>>>>>Best regards,
>>>>>>>George, Ma
>>>>>>
>>>>>
>>>>
>>>>--
>>>>Joe Cooper <joe@swelltech.com>
>>>>http://www.swelltech.com
>>>>Web Caching Appliances and Support
>>>
> ......
>
>
>

-- 
Joe Cooper <joe@swelltech.com>
http://www.swelltech.com
Web Caching Appliances and Support
Received on Wed Apr 10 2002 - 08:35:53 MDT

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