[fetzerch]

I was hoping that some other folks who've experienced the slowdowns could also test this, but that doesn't seem to be happening.

Sorry for being late to the show! I didn't notice until today, that I was having exactly the same problem. I had been running my backend for a couple of weeks without restarting it, and suddenly today, my recordings were stuttering like crazy when I tried to watch them. Looking at my cpu usage for the backend, it was howering between 85% and 99%. Since I only do SD recordings from an analog source, I guess I could run with excessive cpu usuage for quite some time until there just wasn't enough resources left for playback.

I've now compiled and installed the debug-backend-cpu branch and restarted my backend. Just installing the debug-backend-cpu plugin and restarting XBMC didn't do anything good, but restarting the backend lowered the cpu usage to between 0% and 1%. Now, the real question is, will it stay there?

Any results to report after several days?

My backend has now been up for almost ten days. I'm seeing divergent mythbackend cpu load numbers depending on the recording being played, and quite a bit of variation during the playing of a single recording. For some recordings, it's 15% -20%, for others it's 30% to slightly over 40%. (I'm running the latest compiled version from "master".)

While this is much higher than immediately after a boot, it's not high enough to cause problems. And it doesn't seem to be increasing dramatically anymore.

So the current version of the addon will probably work fine for everyone except those with a really old and slow backend system.

Unfortunately, version 1.6.8 did not make it into OpenELEC 2.99.3 (RC3). It still shows 1.6.7. It would be really unfortunate if it doesn't get into the final release, since it's been improved so much.

I'm thinking of rebooting my backend and watching what happens when it's touched only by the latest addon code. Before I do that, cfetzer, is there anything else you'd like me to test with a backend that's been up for a while?

Sorry for the late response. I checked your log, but that socket error should be fine. We need to know the backend version and mythbackend prints this error when we try to get it. Should be harmless. Do you see any of those errors? "writeStringList: Error, No data written on writeBlock)"?

I still believe that there's something wrong in how we setup/use the socket connections to the backend. But it's very difficult and time consuming to debug.

Sure just reboot the backend. I'd be interested as well what happens if you only run the latest addon code. I really hope you are right and the current version works for most of the people.

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"Client speaks protocol version 8 but we speak 72" should not cause any problems and is in libcmyth from the beginning. libcmyth tries to connect with different versions until it gets an OK from the server. Not nice, and maybe something to be redone at some point.

@markcs: Aubrien is right, your xbmc version must contain this commit: https://github.com/xbmc/xbmc/commit/465c...69c849e72c
A current nightly or freshly built version should do it.

Thanks for your replies.
- I did a git pull on both xbmc and the xbmc-pvr-addons (from fetzerch's repository) but both were up to date.
- I deleted the db files in userdate/Database directory.
- I thought my problem may be due to an 'old' install of xbmc that was from the ppa repository for ubuntu. I removed all traces I could find of xbmc under /usr/local/share/xbmc and /usr/share/xbmc
- I reinstalled.

I can enable the addon, but when I try to go into any of the Live TV menu's, i'm told the addon has not started.

...clip...

Thanks!

Has this been resolved?:

"Client speaks protocol version 8 but we speak 7*"

I am having the problem too.

My client is mythbox running as an addon to raspbmc which I just created yesterday (i.e. fresh download of all files) on 2013.02.22. My mythback end is running version .26.

-thanks

version information:
raspbmc-rls-1.0-hardfp-b20130208-u20130208
MythTV Version : v0.26.0 Network Protocol : 75

This thread is about the XBMC PVR addon for mythtv. MythBox is something different and its support thread is this one: http://forum.xbmc.org/showthread.php?tid...ht=mythbox

The error that you are seeing is not really an error. It means that the version of mythbox you are running is too old
and does not support your backend version. The last posts of the linked thread above suggest to upgrade from this repo https://github.com/mitchcapper/mythbox

Another alternative would be to switch to our addon which is a bit better integrated into xbmc. Read http://wiki.xbmc.org/index.php?title=PVR/Backend/MythTV if you are interested. (Haven't used mythbox for a long time, so I cannot tell if our addon suits your needs)