[mythtv] Ticket #3986: BOB interlacing makes EPG slow in latest SVN

Daniel Kristjansson danielk at cuymedia.net
Wed Oct 3 16:11:12 UTC 2007


On Wed, 2007-10-03 at 11:55 -0400, Daniel Kristjansson wrote:
> On Wed, 2007-10-03 at 11:05 -0400, Shane wrote:
> > I tracked down a similar killer performance regression the other day.
> > I thought it was mostly because I use a slow remote backend but the
> > symptoms are similar so I thought I would mention it.
> > 
> > It was the regex searches introduced in r14448 that caused the extra
> > load. This is the workaround I put in. I don't have any funky chars in
> > my channels so I'm not sure this doesn't breaks thing for those who
> > do.
> 
> Interesting. It's easy enough to cache the regular expression, let me
> write some code for that for you to test.

I've attached a patch...

-- Daniel
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