zlib memory usage / performance. With 500kb of data.

Posted by unixman83 on Stack Overflow See other posts from Stack Overflow or by unixman83
Published on 2011-03-19T00:00:22Z Indexed on 2011/03/19 0:10 UTC
Read the original article Hit count: 400

Filed under:

embedded

|

compression

|

memory-usage

|

zlib

|

decompression

Is zLib Worth it? Are there other better suited compressors?

I am using an embedded system. Frequently, I have only 3MB of RAM or less available to my application. So I am considering using zlib to compress my buffers. I am concerned about overhead however.

The buffer's average size will be 30kb. This probably won't get compressed by zlib. Anyone know of a good compressor for extremely limited memory environments?

However, I will experience occasional maximum buffer sizes of 700kb, with 500kb much more common. Is zlib worth it in this case? Or is the overhead too much to justify?

My sole considerations for compression are RAM overhead of algorithm and performance at least as good as zlib.

© Stack Overflow or respective owner

Related posts about embedded

New Product: Oracle Java ME Embedded 3.2 – Small, Smart, Connected

as seen on Oracle Blogs - Search for 'Oracle Blogs'
The Internet of Things (IoT) is coming. And, with todays launch of the Oracle Java ME Embedded 3.2 product, Java is going to play an even greater role in it. Java in the Internet of Things By all accounts, intelligent embedded devices are penetrating the world around us – driving industrial… >>> More
Embedded Office Application - How to know whether the app is running or the object is embedded

as seen on Stack Overflow - Search for 'Stack Overflow'
I am adding an Excel Worksheet object inside Word. Excel has a COM addin attached to it. Any idea how one can know whether Excel is running independently or as an embedded object? The COM Addin attached to Excel loads when the embedded Excel object is activated (double-clicked) inside Word. I am… >>> More
10 Reasons Why Java is the Top Embedded Platform

as seen on Oracle Blogs - Search for 'Oracle Blogs'
With the release of Oracle ME Embedded 3.2 and Oracle Java Embedded Suite, Java is now ready to fully move into the embedded developer space, what many have called the "Internet of Things". Here are 10 reasons why Java is the top embedded platform. 1. Decouples software development… >>> More
Junit with Embedded Glassfish fails - JMS Resource Adapter should be EMBEDDED

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to test a session bean (NetBeans 6.8, Glassfish V3). Unfortunately, the embedded glassfish is unable to start properly, as it tries to connect to a remote JMS Provider (at localhost:7676): $ ant test ... [junit] Mar 23, 2010 12:13:51 PM com.sun.messaging.jms.ra.ResourceAdapter start [junit]… >>> More
pass value from embedded function into conditional of page the embedded function is included on

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a page that includes/embeds a file that contains a number of functions. One of the functions has a variable I want to pass back onto the page that the file is embedded on. <?php include('functions.php'); userInGroup(); if($user_in_group) { print 'user is in group'; } else { print 'user… >>> More

Related posts about compression

Converting linear colors to SRGB shows banding in FFmpeg

as seen on Super User - Search for 'Super User'
When I convert an EXR file sequence with x264 using FFmpeg and convert the colorspace from linear to SRGB (with gamma 0.45454545) I get some heavy banding issues (most visible on a dark gradient). Here is the ffmpeg command I use: C:/ffmpeg.exe -y -i C:/seq_v001.%04d.exr -vf lutrgb=r=gammaval(0… >>> More
IIS7 Compression CSS files only compressed when dynamic compression is enabled

as seen on Server Fault - Search for 'Server Fault'
If anyone can help it would be appreciated. I would like to enable compression for static files within IIS7 (for the sake of simplicity I'll just refer to static css files for the time being). The problem I'm getting is that css files are only compressed when both dynamic and static compression… >>> More
Built-in GZip/Deflate Compression on IIS 7.x

as seen on West-Wind - Search for 'West-Wind'
IIS 7 improves internal compression functionality dramatically making it much easier than previous versions to take advantage of compression that’s built-in to the Web server. IIS 7 also supports dynamic compression which allows automatic compression of content created in your own applications (ASP… >>> More
Domino Document data compression and design compression

as seen on Server Fault - Search for 'Server Fault'
I was thinking of turning this on some large databases not just mail files - we have around 8 - 10GB of large databases as well as small databases of couple of hundred MB in size. But after reading this post I am not too sure: http://www-10.lotus.com/ldd/nd85forum.nsf/4b9931b774db788c85256bf0006b5e6d/1f4e67b569720e54852576c0003cb8ac… >>> More
I need to choose a compression algorithm

as seen on Stack Overflow - Search for 'Stack Overflow'
I need to choose a compression algorithm to compress some data. I don't know the type of data I'll be compressing in advance (think of it as kinda like the WinRAR program). I've heard of the following algorithms but I don't know which one I should use. Can anyone post a short list of pros and cons… >>> More