Well. I'll let it run for a while in my staging environment but I'm seeing, even with some nested field() calls, an overall drop in average per instance CPU utilization of almost half. That is definitely a huge improvement.
I'll post more as the test runs. -- James -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Rainer Gerhards Sent: Friday, October 25, 2013 6:08 AM To: rsyslog-users Subject: Re: [rsyslog] Performance question. On Fri, Oct 25, 2013 at 1:02 PM, Boylan, James <[email protected]>wrote: > Quick Question. Which is more impactful to performance? > > set $!session = re_extract($msg, > '^.*[\\^][0-9.-]+\\|[A-Z]+\\|[a-zA-Z0-9.-]+\\|[a-zA-Z0-9._-]+\\|[a-zA- > Z0-9]*\\|([a-zA-Z0-9._-]*)[~]*[a-zA-Z0-9._-]*\\|.*', > 0, 1, 'N/A'); > > or > > set $!session = field(field(field($msg, 94, 2), 124, 6), 126, 1); > > I'm going to do some testing, but if I can get a quick response here > it could save me some time. I would expect the re_extract function to > be, but I'm not familiar with how the code for field works so I can't > make that assumption. > > That's my assumption as well, but I may be wrong. Rainer > Thanks! > > -- James > _______________________________________________ > 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. > _______________________________________________ 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. _______________________________________________ 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.

