SharpZipLib Versus 7-Zip for Large File Sets (://URLFAN)

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SharpZipLib Versus 7-Zip for Large File Sets

Post Date: Sep 23, 2008 9:21 p.m.
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Recently I was asked to help out when we had a need to reduce the size of a directory of rolling backups. And when I say size, I am talking around 12GB a day backup sizes.  This was already a compressed directory, but I found that if we zip up the folders, we can get even better compression (to the tune of 60+% more room). First note: Windows built-in zipping utility is not so good, it won’t even try to compress anything that size. Instead it throws an error. Nice. Basically I started working with two options, #ZipLib (SharpZipLib) or 7-Zip .  #ZipLib is written entirely in C#, which lends nicely to logging and reporting purposes, but in my experience it may not be the answer for large file sets ( NOTE: I benchmarked with #Zip’s ZipFile, not with FastZip, which might be faster with the same compression results). 7-Zip is a fast utility, but it is an external application, so you have to call it from within your code an...

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