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+---- Thread: XBMC on Raspberry Pi - Wonder if this will work out? (Historical Discussion Thread) (/showthread.php?tid=113824)
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - s7mx1 - 2012-05-09 21:49
(2012-05-09 20:48)humla Wrote: maybe try PM3.
Tried PM3 as well as welo and no noticeable difference.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - Jezz_X - 2012-05-09 23:54
(2012-05-09 16:54)s7mx1 Wrote: 1) Bit slow. CPU load is over 90% on home screen at idle and interesting drops to 40% at file manager as reported by topI can pretty much agree with this and has been my experience as well on all points. I have managed to get the ui a little better by basically removng all the cover art, fanart, background video and viz but it still lags a little on scrolling. It could be because I'm only using a class 4 SD card but I purchased a class 6 one the other day only to find out that it doesn't work ( quite a big list here http://elinux.org/RPi_VerifiedPeripherals#Problem_SD_Cards as a found out too late )
2) H264 video files plays very nicely up to 720p. For 1080p h264 videos it pauses every 5 seconds or so. The cpu load when playing H264 720p video is about 60% and it goes over 90% when playing 1080p video. The fast forward and fast backwards does not yet work. Skip works fine but you got some grey screen initially when you do the skip.
3) Plugins are really slow as I mentioned which is likely due to high CPU load whilst idle. It took about 10 seconds for the plugin to execute
4) Have not tried.
Will try the advantaged setting tonight.
Another thing needed is to turn off the background generation of video thumbnails and meta data in video settings it really slows it down too.
Also maybe a network library might be of advantage here but I've not bothered to set that up
Also TheUni has been working on a better internal thumbnail loader for jpg images that may help as well in the long run for loading the covers
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - davilla - 2012-05-10 00:05
Remember, it took iOS the better part of 4-6 months to pickup speed, this platform I expect will be similar.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - s7mx1 - 2012-05-10 00:06
(2012-05-09 23:54)Jezz_X Wrote:(2012-05-09 16:54)s7mx1 Wrote: 1) Bit slow. CPU load is over 90% on home screen at idle and interesting drops to 40% at file manager as reported by topI can pretty much agree with this and has been my experience as well on all points. I have managed to get the ui a little better by basically removng all the cover art, fanart, background video and viz but it still lags a little on scrolling. It could be because I'm only using a class 4 SD card but I purchased a class 6 one the other day only to find out that it doesn't work ( quite a big list here http://elinux.org/RPi_VerifiedPeripherals#Problem_SD_Cards as a found out too late )
2) H264 video files plays very nicely up to 720p. For 1080p h264 videos it pauses every 5 seconds or so. The cpu load when playing H264 720p video is about 60% and it goes over 90% when playing 1080p video. The fast forward and fast backwards does not yet work. Skip works fine but you got some grey screen initially when you do the skip.
3) Plugins are really slow as I mentioned which is likely due to high CPU load whilst idle. It took about 10 seconds for the plugin to execute
4) Have not tried.
Will try the advantaged setting tonight.
Another thing needed is to turn off the background generation of video thumbnails and meta data in video settings it really slows it down too.
Also maybe a network library might be of advantage here but I've not bothered to set that up
Also TheUni has been working on a better internal thumbnail loader for jpg images that may help as well in the long run for loading the covers
Maybe its time to create a micro skin instead of lite. A faster SD card may or may not help and to me it more looks like cpu is the bottleneck.
Personally I am not too bothered about smooth skin. The biggest show stopper is the (video) addon. Python is running very slow (at least on openelec). I think instead of calling python every time when an addon lauches it should be loaded into memory at boot and only load additional modules if needed.
(2012-05-10 00:05)davilla Wrote: Remember, it took iOS the better part of 4-6 months to pickup speed, this platform I expect will be similar.
Thanks for the info. Will wait patiently.
One thing I cannot get answer anywhere is will raspberry pi's GPU requires 128MB memory with xbmc running? From my experience I can only get xbmc work with 128MB memory allocated to GPU.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - Jezz_X - 2012-05-10 00:14
(2012-05-10 00:05)davilla Wrote: Remember, it took iOS the better part of 4-6 months to pickup speed, this platform I expect will be similar.Oh I'm sure it probably will get better
I'm just saying what I as basically an end user experience now so other people don't go rushing into it thinking its all roses and then bitch because its not (currently)
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - gimli - 2012-05-10 09:34
(2012-05-10 00:05)davilla Wrote: Remember, it took iOS the better part of 4-6 months to pickup speed, this platform I expect will be similar.
I have the feeling people still think it's an i7. They expect to much from the device.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - gimli - 2012-05-10 09:42
(2012-05-09 16:54)s7mx1 Wrote: 1) Bit slow. CPU load is over 90% on home screen at idle and interesting drops to 40% at file manager as reported by top
2) H264 video files plays very nicely up to 720p. For 1080p h264 videos it pauses every 5 seconds or so. The cpu load when playing H264 720p video is about 60% and it goes over 1.90% when playing 1080p video. The fast forward and fast backwards does not yet work. Skip works fine but you got some grey screen initially when you do the skip.
3) Plugins are really slow as I mentioned which is likely due to high CPU load whilst idle. It took about 10 seconds for the plugin to execute
4) Have not tried.
Will try the advantaged setting tonight.
1.) CPU usage is not the main factor. Turn off the debug messages. Keep in mind which device you have in front and tell how the GUI feels then.
2.) For network shares prefer nfs over samba. Prefer passthrough over software decoding. Convert DTS -> AC3. DTS.
None of the current "dirty region" modes work on the PI.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - s7mx1 - 2012-05-10 10:04
(2012-05-10 09:42)gimli Wrote:(2012-05-09 16:54)s7mx1 Wrote: 1) Bit slow. CPU load is over 90% on home screen at idle and interesting drops to 40% at file manager as reported by top
2) H264 video files plays very nicely up to 720p. For 1080p h264 videos it pauses every 5 seconds or so. The cpu load when playing H264 720p video is about 60% and it goes over 1.90% when playing 1080p video. The fast forward and fast backwards does not yet work. Skip works fine but you got some grey screen initially when you do the skip.
3) Plugins are really slow as I mentioned which is likely due to high CPU load whilst idle. It took about 10 seconds for the plugin to execute
4) Have not tried.
Will try the advantaged setting tonight.
1.) CPU usage is not the main factor. Turn off the debug messages. Keep in mind which device you have in front and tell how the GUI feels then.
2.) For network shares prefer nfs over samba. Prefer passthrough over software decoding. Convert DTS -> AC3. DTS.
None of the current "dirty region" modes work on the PI.
CPU may play a big role in addon execution time. Currently I am happy with the HD playback performance, which is better than ATV 1 with crystalhd card. I am not too concerned about smooth gui. But currently video addon takes 20 seconds to simply load which is unusable for most people.
Thanks for the tips. Nfs not working in openelec at the moment. I am using FTP at moment. A lot people only got tv so audio software decoding is a the only way for us.
Dirty region mode 3 apparently works with latest openelec.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - s7mx1 - 2012-05-10 11:10
(2012-05-10 09:34)gimli Wrote:(2012-05-10 00:05)davilla Wrote: Remember, it took iOS the better part of 4-6 months to pickup speed, this platform I expect will be similar.
I have the feeling people still think it's an i7. They expect to much from the device.
i7. Thanks but I will have my pc downgraded (upgraded?) next time for arm based devices like mele A1000.
I only compare raspberry pi with Pentium III based ATV 1 with crystalhd card. Raspberry pi beats ATV1 in video playback but seriously lags behind in addon performance. Let's take a look of iPlayer addon:
iPlayer -> TV -> Favourites
In order for an end user to navigate to "Favourites" folder of iPlayer addon 3 clicks is needed. I measured that each click will take around 20 seconds to complete. This means the iPlayer addon user will need a good 1 minute to reach "Favourites" folder before they can watch anything inside.
Most end user would "expect" addon to finish loading less than 5 seconds for each single click. I understand that serious optimisation work need to be done on that new platform. As a end user I am merely pointing out area interested developers could focus on for raspberry pi.
RE: Raspberry Pi [HTPC] - Wonder if this will work out for XBMC?? - simonk83 - 2012-05-10 12:36
(2012-05-10 10:04)s7mx1 Wrote:(2012-05-10 09:42)gimli Wrote:(2012-05-09 16:54)s7mx1 Wrote: 1) Bit slow. CPU load is over 90% on home screen at idle and interesting drops to 40% at file manager as reported by top
2) H264 video files plays very nicely up to 720p. For 1080p h264 videos it pauses every 5 seconds or so. The cpu load when playing H264 720p video is about 60% and it goes over 1.90% when playing 1080p video. The fast forward and fast backwards does not yet work. Skip works fine but you got some grey screen initially when you do the skip.
3) Plugins are really slow as I mentioned which is likely due to high CPU load whilst idle. It took about 10 seconds for the plugin to execute
4) Have not tried.
Will try the advantaged setting tonight.
1.) CPU usage is not the main factor. Turn off the debug messages. Keep in mind which device you have in front and tell how the GUI feels then.
2.) For network shares prefer nfs over samba. Prefer passthrough over software decoding. Convert DTS -> AC3. DTS.
None of the current "dirty region" modes work on the PI.
CPU may play a big role in addon execution time. Currently I am happy with the HD playback performance, which is better than ATV 1 with crystalhd card. I am not too concerned about smooth gui. But currently video addon takes 20 seconds to simply load which is unusable for most people.
Thanks for the tips. Nfs not working in openelec at the moment. I am using FTP at moment. A lot people only got tv so audio software decoding is a the only way for us.
Dirty region mode 3 apparently works with latest openelec.
NFS works fine, I've been using it from the start
The newer versions with the newer Confluence skin is actually pretty smooth I find. Sure it can take a while to do certain thing occasionally, but moving around the menu's is pretty good I reckon, certainly chalk and cheese compared to the earlier versions.
Plugins do struggle though, but very early days yet (I don't think the openelec guys even have a pi so they've done amazing work in my opinion). I'm using it as my main media server at the moment, and all my media is 720p (a lot of it DTS). No problems so far.