On Fri, Jun 21, 2013 at 11:45 AM, David Lang <[email protected]> wrote: > I believe that what rsyslog implements is zip, not gzip (not quite as good > compression, but less CPU
It's zlib, which basically just uses the standard deflate() algorithm. The implementation does allow you to set your compression level, and automatically creates the appropriate gzip file headers when creating files. > If you use the built-in compression then you are just shifting the CPU > load into rsyslog, but you are avoiding the I/O load of writing the file > and then reading it again. (if you have enough ram, this may end up being > reads from memory instead of from disk). > This was exactly why we used it. The disk IO hit was way, way more expensive than the CPU cost of compressing upfront. -Aaron _______________________________________________ rsyslog mailing list http://lists.adiscon.net/mailman/listinfo/rsyslog http://www.rsyslog.com/professional-services/ What's up with rsyslog? Follow https://twitter.com/rgerhards NOTE WELL: This is a PUBLIC mailing list, posts are ARCHIVED by a myriad of sites beyond our control. PLEASE UNSUBSCRIBE and DO NOT POST if you DON'T LIKE THAT.
