http-compression

We recently switched some of our sites from deflate to gzip and noticed a significant increase in cpu load on our servers. Is it possible that you are experiencing cache miss? That is, compressed content is sometimes cached compressed but switching compression schemes would (or at least should) invalidate that cache causing dramatically increased cpu utilization. Did you try switching it back? Gorpik gzip is, basically, deflate with some additional headers. So there should not be a significant performance hit. Now, maybe your deflate tool is just more efficient than your gzip tool. Are you

I am communicating to a Tomcat Server using a Java ME application on my mobile device. I was wondering if I could compress my requests/responses using Gzip to reduce the number of bytes sent over the network. Modern phones have so much CPU power and the network is relatively slow so compression makes perfect sense. It's quite easy to do also. On the J2ME side, you do something like this (assuming you use HttpConnection), hc.setRequestProperty("Accept-Encoding", "gzip, deflate"); if (hc.getResponseCode() == HttpConnection.HTTP_OK) { InputStream in = hc.openInputStream(); if ("gzip".equals(hc

I just searched about gzip and Deflate , and found out that Deflate is better. GZip or Deflate for HTTP compression Why use deflate instead of gzip for text files served by Apache? Is there any performance hit involved in choosing gzip over deflate for http compression? Deflate compression browser compatibility and advantages over GZIP But when I checked the response headers of Google, Facebook and StackExchange, all of them were using GZIP. Why do they use gzip instead of Deflate? It is apparently due to a misunderstanding resulting from the choice of the name "Deflate". The http standard

Everyone, as far as I'm concerned the question is ansered in EDIT 2. Although it's only a partial solution to the IIS side of the problem, it's what I was looking for. So I'm going to add my query to the small ocean of questions on the subject. I'm trying to enable GZip compression on large soap responses from a WCF service. So far, I've followed instructions here and in a variety of other places to enable dynamic compression on IIS. Here's my dynamicTypes section from the applicationHost.config: <dynamicTypes> <add mimeType="text/*" enabled="true" /> <add mimeType="message/*" enabled="true" /

I have an MVC application view that is generating quite a large HTML table of values (>20MB). I am compressing the view in the controller using a compression filter internal class CompressFilter : ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { HttpRequestBase request = filterContext.HttpContext.Request; string acceptEncoding = request.Headers["Accept-Encoding"]; if (string.IsNullOrEmpty(acceptEncoding)) return; acceptEncoding = acceptEncoding.ToUpperInvariant(); HttpResponseBase response = filterContext.HttpContext.Response; if

I am having issues with javascript files not decompressing in IIS7 and stylesheets not loading properly. I can fix this issue by turning off Static compression in IIS but this can't be a permanent solution. The issue has suddenly started happening. We haven't changed the code. The web application is an asp.net web forms app in .net 4. static and dynamic compression was set in IIS. another web forms web application is still running fine with static compression set at the application level. the server was updated to .net 4.5 framework. Some of the stylesheets tags are set to runat server as I

How can I enable compression for POSTed data uploaded to a .NET WebService (SOAP, not WCF)? I thought it would be a simple matter of enabling dynamic compression in IIS but after enabling, it's only compressing the response , not the POST request . I've added it as a Service Reference and I can't find any settings on the generated SOAPClient to enable compression of requests. It seems I might be missing a configuration setting or code on the client side to compress the request before sending it to the server? Or is what I'm trying to do (GZipping POST data) not even supported? Further info: I

What is the best plugin for Rails that gzips my webpage output? Edit: The company I am hosting with has stated they will not install mod_deflate . Unless you are running your Rails application without another webserver (which usually isn't a great idea), you should probably look at your webserver. All major webservers have options to enable gzip. For example, for Apache, you can use mod_deflate . Have you tested to see if it's already enabled? If your hosting provider uses Apache it very well could be there by default. Run this command against your site and see if you get the Content-Encoding:

I've been trying unsuccessfully to enable gzip HTTP compression on my Windows Azure hosted WCF Restful service which returns JSON only from GET and POST requests. I have tried so many things that I would have a hard time listing all of them, and I now realise I have been working with conflicting information (regarding old version of azure etc) so think it best to start with a clean slate! I am working with Visual Studio 2008, using the February 2010 tools for Visual Studio. So, according to the following link .. .. HTTP compression has now been enabled. I've used the advice at the following