[mythtv] CC benchmarks and procedure list ? Was: how would one speed up the channel changing in mythtv ?
Linuxguy123
linuxguy123 at gmail.com
Sun Oct 19 16:01:25 UTC 2008
Thanks for the replies to my question about speeding up the channel
change, herein referred to a CC.
What gets measured gets fixed. I haven't looked at the mythtv source
code yet. Has anyone installed timer stubs to log how long each of the
steps in a channel change takes ? Do we really know why mythtv is
slow ?
What would the call stack for a channel change look like ? (What
procedures get called, in what order ?)
People tell me the dvr program changes channels much faster than mythtv.
The Captiveworks CW3000/CW4000 satellite receivers are based on dvr.
They change channels in about 1 second. How is mythtv different from
dvr and what makes mythtv slower and dvr faster ?
Lest anyone think that it takes special hardware to get fast channel
changes, the CW3000/4000 machines use standard, off the shelf Genpix
receiver modules.
Thanks
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