[Mod_gzip] Re: Antwort: mod_gzip v. mod_deflate

[Stephen Pierzchala]

Thanks for the tip...

As a side-note, have the two of you seen this interesting piece of 
nonsense that Microsoft has on their site?

"Important Only HTTP 1.1 compliant clients request compressed files. 
Clients that are not HTTP 1.1 compliant request and receive the files 
from IIS un-compressed, thereby not benefiting from the improved 
download times that HTTP 1.1 compliant clients offer. Internet Explorer 
versions 4 and above, Windows Explorer, and My Computer are all HTTP 1.1 
compliant clients by default."

http://www.microsoft.com/technet/prodtechnol/iis/maintain/featusability/httpcomp.asp

Ummm, and they wonder why no one believes them!

smp

Ian Holsman wrote:
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> Hi Stephen/Michael.
> for the configuration settings, I would suggest you use:
> AddoutputfilterbyType text/html  DEFLATE
> as compressing css & js files breaks certain browsers (I believe)
> this will give you the most bang for buck so to speak.
> you may want to change the defaltememlevel to 6 and see if you get the
> same compression ratio that mod_gzip does.
> 
> one of the other design decisions made was to keep the code simple, and
> we used zlib instead of including our own custom compression code, which
> may also explain why mod_gzip is getting better results.
> 
> Stephen Pierzchala wrote:
> | Michael:
> |
> | Thanks for your response. It helped to explain some of the internal
> | workings of mod_gzip to me.
> |
> | I am running mod_deflate at
> |
> |     DeflateWindowSize 15
> |     DeflateMemLevel 9
> |     DeflateBufferSize 8096
> |
> | all of which are the defaults, as well as the maximum values.
> |
> | mod_gzip I am running at the default level of 6.
> |
> | You can see the results of the testing that I have performed at
> |
> | http://www.pierzchala.com/deflate-compress.php
> |
> | If anyone can think of a way for me to tweak mod_deflate (yeah, I know;
> | but I like getting every last drop out the modules I install), it would
> | be appreciated.
> |
> | Stephen Pierzchala
> |
> | ***
> |
> |
> | Michael.Schroepl@telekurs.de wrote:
> |
> |> Hi Stephen,
> |>
> |>
> |>
> |>> I examining both mod_gzip for Apache/1.3.x and mod_deflate for
> |>> Apache/2.0.x and had a question.
> |>
> |>
> |>
> |> this looks like an interesting topic; so please allow me
> |> to send a copy of my response to the mod_gzip mailing list
> |> as well, although this one started as private mail.
> |>
> |
> | <snip>
> |
> | Remainder of original e-mail content removed for listserv sanity
> |
> | </snip>
> |
> 
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-- 

****

Stephen Pierzchala
stephen@pierzchala.com
http://www.pierzchala.com/