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Questions tagged [compression]

Decrease the size of data, typically to preserve space or reduce network bandwidth required while transmitting files. It can be applied to files, folders, disks, etc.

418 questions
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Ultra-efficient compression

I store a very large (TBytes) amount of logs. These logs will rarely be extracted, and when they will - only a single file will be required. Could you recommend an ultra-efficient and extremely stable compression algorithm that's considerably better…
Adam Matan
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Limiting 7zip CPU usage on Windows Server 2008 (from batch file)

Does anyone know of a way (specific to 7zip or general) to limit the CPU usage of 7zip while it is archiving a long list of files? OS is Windows Server 2008 R2, and 7zip is run via command line from a batch file.
UpTheCreek
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How does a web server/the http protocol handle version control and compression?

When a client browser requests a file from the web server, I know that some kind of check is performed, because the files needed to serve the web page may already be cached by the web browser. So, if a file exists in the cache, no files are sent.…
Sune Rasmussen
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Compress and host large amounts of static HTML

I currently run a small website which is being used to host large amounts of (generated) static HTML. The problem is that disk space is limited, and the HTML is growing by 1GB a week. (The files are grouped into directories, with around 500 files…
Matthew
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HTTP compression in IIS 6.0 causing problems with certain users

We're getting a few sporadic customer calls (less than 0.1% of our users) complaining of not being able to access my company's website - either they get a blank page (if they use IE), or a "Content Encoding Error" that says the page uses an invalid…
gharper
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Is it safe to zip/tar hotcopied svn repositories?

We want to store our backups of our svn repositories as a flat file. We'd like to tar/zip the whole hotcopied directory. I know that we could dump it to a flat file but let's pretend that we'd rather use hotcopy instead. Are there any gotchas (i.e.…
Son of the Wai-Pan
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What kind of algorithm is used in LTO tape hardware compression?

LTO tape drives, from their very first generation, offer hardware compression that, theoretically, allows a maximum of 2 - 2.5x the rated data capacity of each cartridge to be stored, with only a slight penalty to read/write rates. I'm having…
Mikey T.K.
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How can I troubleshoot why my IIS7 site is not gzip compressing?

I've got a number of websites on a single IIS7 machine running W2K8. I'm using Fiddler to help me figure out if something is compressed or not. Nothing is. So, I've googled for a few things and tried some things out. I have the following…
Pure.Krome
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Hardware compression on tape drives: does it still make sense?

Does hardware compression still make sense on tape drives, considering the performance of modern CPUs? Also, what should I do if I have some data which is already compressed in GZIP and my drive is working with hardware compression enabled? And, are…
Laurent
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Compression of Tomcat mod_jk results in Apache httpd

I'm developing a web application locally on my system, serving it using Tomcat (tomcat-7.0.52). In production, I want to front the Tomcat with an Apache httpd (Apache/2.2.15). This works and I managed to configure caching as needed. Now I want to…
Blama
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7zip command line - cannot find code that works with archives

We are in the process of a server move, both to a new host and from a Server 2k8 box to a Server 2012 box. The server in question has a few drives that hold our sites and some utilities. These drives were duplicated exactly during the move. Data,…
Jeff
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What is good compression algorithm that can be used for Oracle .DMP files

I'm planning to compress the Oracle export dump files of all Oracle database servers to reduce space usage on their disks. My question is: Do you know of any good compression utility/algorithm for compressing this type of file?
titanium
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Gzip compression with nginx

In my nginx.conf I have: gzip on; gzip_static on; gzip_buffers 16 8k; gzip_comp_level 9; gzip_http_version 1.0; gzip_min_length 1000; gzip_types text/plain text/css image/x-icon image/bmp image/png image/gif…
Jerry
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Why can't I copy .zip files from a server to a server in a different domain?

At work, we're using a Windows Server 2008 R2 VM as our build server. At the end of the build process for any of our projects, we copy the packaged deployment files to a folder on the server where they'll be deployed. (This is done in a batch…
Kyralessa
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What is the best way to compress backend to nginx reverse proxy data?

We are going to be running a nginx reverse proxy that will pull data from a backend via the internet. What we mean by via the internet is the backend machine will not be on a lan with the front facing reverse proxy. We were thinking it would be nice…
anonymous-one
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