Re: [mythtv-users] Front end memory usage
Alberto Alonso wrote: I am finding more info on this. It seems to be mostly related to theme and resolution. Going down to 640x480 I now get 57M of RES usage, which is a heck of a lot better, but still rather large if you ask me. What theme and resolution are you using to the 17M resident? Also, does anybody know of any setting to set things up that maybe doesn't cache the whole theme stuff to memory? It seems that reading from disk on a page change should be fast enough. I'm using Minimalist-wide (which is appropriate for widescreen TV's). Another Myth box I maintain shows: PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 32076 root 15 0 69764 26m 18m S 6.3 5.3 752:49.75 mythfrontend And the guy who owns it uses visor--the theme with the clouds (a complex background image)--at 1024x768. I really don't think it's the theme's being cached that's causing the problem. The default theme, as distributed (XML descriptions and unscaled images), is only 2736KB, Minimalist wide is 2900KB, and visor is 2828KB. On disk, my themecache (the scaled images)--Minimalist-wide.1920.1080--is 7776KB, and visor.1024.768 is 5712KB. Also, TTBOMK, Myth doesn't maintain the entire theme in memory. Images are cached on disk as just described. Also, since it notices changes to the XML theme files at runtime, it may not even keep the theme descriptions in memory (although I haven't looked at the source to verify this--it could also be checking modification times or something). Regardless, I can't see the theme causing it to take 50-100MB of RAM. Maybe for a program like Windows Media Player, but this is MythTV. ;) You can check your theme size with: du -sk /usr/local/share/mythtv/themes/theme name You can check your themecache size with: du -sk ~mythtv/.mythtv/themecache Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Front end memory usage
On 30/10/05, Michael T. Dean [EMAIL PROTECTED] wrote: Alberto Alonso wrote: I am finding more info on this. It seems to be mostly related to theme and resolution. Going down to 640x480 I now get 57M of RES usage, which is a heck of a lot better, but still rather large if you ask me. What theme and resolution are you using to the 17M resident? Also, does anybody know of any setting to set things up that maybe doesn't cache the whole theme stuff to memory? It seems that reading from disk on a page change should be fast enough. I'm using Minimalist-wide (which is appropriate for widescreen TV's). Another Myth box I maintain shows: PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 32076 root 15 0 69764 26m 18m S 6.3 5.3 752:49.75 mythfrontend And the guy who owns it uses visor--the theme with the clouds (a complex background image)--at 1024x768. I really don't think it's the theme's being cached that's causing the problem. The default theme, as distributed (XML descriptions and unscaled images), is only 2736KB, Minimalist wide is 2900KB, and visor is 2828KB. On disk, my themecache (the scaled images)--Minimalist-wide.1920.1080--is 7776KB, and visor.1024.768 is 5712KB. Also, TTBOMK, Myth doesn't maintain the entire theme in memory. Images are cached on disk as just described. Also, since it notices changes to the XML theme files at runtime, it may not even keep the theme descriptions in memory (although I haven't looked at the source to verify this--it could also be checking modification times or something). Regardless, I can't see the theme causing it to take 50-100MB of RAM. Maybe for a program like Windows Media Player, but this is MythTV. ;) Remember that those theme images are stored (on disk) in a compressed form. I believe a QImage is the raw bitmap, uncompressed, in memory. So a 1024x768x32-bit image would be 3MiB (25165824 bits) -- Robert Anaerin Johnston ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Front end memory usage
Robert Johnston wrote: On 30/10/05, Michael T. Dean [EMAIL PROTECTED] wrote: Alberto Alonso wrote: I am finding more info on this. It seems to be mostly related to theme and resolution. Going down to 640x480 I now get 57M of RES usage, which is a heck of a lot better, but still rather large if you ask me. What theme and resolution are you using to the 17M resident? Also, does anybody know of any setting to set things up that maybe doesn't cache the whole theme stuff to memory? It seems that reading from disk on a page change should be fast enough. I'm using Minimalist-wide (which is appropriate for widescreen TV's). Another Myth box I maintain shows: PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 32076 root 15 0 69764 26m 18m S 6.3 5.3 752:49.75 mythfrontend And the guy who owns it uses visor--the theme with the clouds (a complex background image)--at 1024x768. I really don't think it's the theme's being cached that's causing the problem. The default theme, as distributed (XML descriptions and unscaled images), is only 2736KB, Minimalist wide is 2900KB, and visor is 2828KB. On disk, my themecache (the scaled images)--Minimalist-wide.1920.1080--is 7776KB, and visor.1024.768 is 5712KB. Also, TTBOMK, Myth doesn't maintain the entire theme in memory. Images are cached on disk as just described. Also, since it notices changes to the XML theme files at runtime, it may not even keep the theme descriptions in memory (although I haven't looked at the source to verify this--it could also be checking modification times or something). Regardless, I can't see the theme causing it to take 50-100MB of RAM. Maybe for a program like Windows Media Player, but this is MythTV. ;) Remember that those theme images are stored (on disk) in a compressed form. I believe a QImage is the raw bitmap, uncompressed, in memory. So a 1024x768x32-bit image would be 3MiB (25165824 bits) OK. We've got 2.5MiB out of his 56MiB RES/VIRT unknown at 640x480 to 107MiB RES/171MiB VIRT at some unspecified resolution, so where's the rest--especially considering there's probably only one full-size image. Also, as specified earlier in the thread, my 1920x1080 frontend with a simple theme is only using 16MiB RES/57MiB VIRT--significantly less than his 640x480 frontend. And, as shown in the message you quoted, the frontend with the 1024x768 complex theme is using 26MiB RES/68MiB VIRT. So if the theme is the major problem, both should be using more memory than he is... Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Front end memory usage
Alberto Alonso wrote: I am experimenting with a diskless setup based on Knoppmyth R5A16 After the frontend is done resizing things, memory usage of the mythfrontend process starts to increase from 18M (right after the resizing is done) to 107M of Resident memory (virtual is at 171M) Trying to run the weather plugin kills the frontend, as I only have 256M RAM and it runs out of memory. So, the question is, where is the frontend memory going? It seems that 107M of resident RAM just to display the main menu is quite excessive. Did I miss-configure my system? Mine is using 17M physical memory (16M shared) and 58M virtual memory while displaying the main menu after 44 1/2 CPU hours (just upgraded my TV to a digital TV, so I had to change my resolution) during which I've watched several shows and used plugins--and I'm now using a 1920x1080 X and Myth GUI resolution. PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 58284 17m 16m R 0.7 3.5 44:28.03 mythfrontend So, the only help I can really provide is that this is not normal and is not a Myth bug. So, it's probably a configuration problem. The question then becomes, Configuration of what? Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Front end memory usage
Thanks, at least this confirms that it is something that can be fixed. What myth plugins are you using? My next step is to remove them one by one and see if that helps. Thanks, Alberto On Sat, 2005-10-29 at 15:40 -0400, Michael T. Dean wrote: Alberto Alonso wrote: I am experimenting with a diskless setup based on Knoppmyth R5A16 After the frontend is done resizing things, memory usage of the mythfrontend process starts to increase from 18M (right after the resizing is done) to 107M of Resident memory (virtual is at 171M) Trying to run the weather plugin kills the frontend, as I only have 256M RAM and it runs out of memory. So, the question is, where is the frontend memory going? It seems that 107M of resident RAM just to display the main menu is quite excessive. Did I miss-configure my system? Mine is using 17M physical memory (16M shared) and 58M virtual memory while displaying the main menu after 44 1/2 CPU hours (just upgraded my TV to a digital TV, so I had to change my resolution) during which I've watched several shows and used plugins--and I'm now using a 1920x1080 X and Myth GUI resolution. PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 58284 17m 16m R 0.7 3.5 44:28.03 mythfrontend So, the only help I can really provide is that this is not normal and is not a Myth bug. So, it's probably a configuration problem. The question then becomes, Configuration of what? Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Front end memory usage
Alberto Alonso wrote: On Sat, 2005-10-29 at 15:40 -0400, Michael T. Dean wrote: Alberto Alonso wrote: I am experimenting with a diskless setup based on Knoppmyth R5A16 After the frontend is done resizing things, memory usage of the mythfrontend process starts to increase from 18M (right after the resizing is done) to 107M of Resident memory (virtual is at 171M) Trying to run the weather plugin kills the frontend, as I only have 256M RAM and it runs out of memory. So, the question is, where is the frontend memory going? It seems that 107M of resident RAM just to display the main menu is quite excessive. Did I miss-configure my system? Mine is using 17M physical memory (16M shared) and 58M virtual memory while displaying the main menu after 44 1/2 CPU hours (just upgraded my TV to a digital TV, so I had to change my resolution) during which I've watched several shows and used plugins--and I'm now using a 1920x1080 X and Myth GUI resolution. PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 58284 17m 16m R 0.7 3.5 44:28.03 mythfrontend So, the only help I can really provide is that this is not normal and is not a Myth bug. So, it's probably a configuration problem. The question then becomes, Configuration of what? Thanks, at least this confirms that it is something that can be fixed. What myth plugins are you using? My next step is to remove them one by one and see if that helps. I've got MythControls, MythDVD, MythGallery, MythGame, MythMusic, MythNews, MythVideo, MythWeather, and MythStream (not MythStreamTV) installed (and MythWeb, but that doesn't even touch mythfrontend). I just went in to MythWeather and got this while it was displaying the weather: PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 59972 19m 12m S 1.3 3.8 49:12.06 mythfrontend and after PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 59976 19m 13m D 1.3 4.0 49:12.94 mythfrontend Happy hunting. Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
Re: [mythtv-users] Front end memory usage
I am finding more info on this. It seems to be mostly related to theme and resolution. Going down to 640x480 I now get 57M of RES usage, which is a heck of a lot better, but still rather large if you ask me. What theme and resolution are you using to the 17M resident? Also, does anybody know of any setting to set things up that maybe doesn't cache the whole theme stuff to memory? It seems that reading from disk on a page change should be fast enough. Thanks again for your help, Alberto On Sat, 2005-10-29 at 19:13 -0400, Michael T. Dean wrote: Alberto Alonso wrote: On Sat, 2005-10-29 at 15:40 -0400, Michael T. Dean wrote: Alberto Alonso wrote: I am experimenting with a diskless setup based on Knoppmyth R5A16 After the frontend is done resizing things, memory usage of the mythfrontend process starts to increase from 18M (right after the resizing is done) to 107M of Resident memory (virtual is at 171M) Trying to run the weather plugin kills the frontend, as I only have 256M RAM and it runs out of memory. So, the question is, where is the frontend memory going? It seems that 107M of resident RAM just to display the main menu is quite excessive. Did I miss-configure my system? Mine is using 17M physical memory (16M shared) and 58M virtual memory while displaying the main menu after 44 1/2 CPU hours (just upgraded my TV to a digital TV, so I had to change my resolution) during which I've watched several shows and used plugins--and I'm now using a 1920x1080 X and Myth GUI resolution. PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 58284 17m 16m R 0.7 3.5 44:28.03 mythfrontend So, the only help I can really provide is that this is not normal and is not a Myth bug. So, it's probably a configuration problem. The question then becomes, Configuration of what? Thanks, at least this confirms that it is something that can be fixed. What myth plugins are you using? My next step is to remove them one by one and see if that helps. I've got MythControls, MythDVD, MythGallery, MythGame, MythMusic, MythNews, MythVideo, MythWeather, and MythStream (not MythStreamTV) installed (and MythWeb, but that doesn't even touch mythfrontend). I just went in to MythWeather and got this while it was displaying the weather: PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 59972 19m 12m S 1.3 3.8 49:12.06 mythfrontend and after PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND 660 root 9 0 59976 19m 13m D 1.3 4.0 49:12.94 mythfrontend Happy hunting. Mike ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
[mythtv-users] Front end memory usage
I am experimenting with a diskless setup based on Knoppmyth R5A16 After the frontend is done resizing things, memory usage of the mythfrontend process starts to increase from 18M (right after the resizing is done) to 107M of Resident memory (virtual is at 171M) Trying to run the weather plugin kills the frontend, as I only have 256M RAM and it runs out of memory. So, the question is, where is the frontend memory going? It seems that 107M of resident RAM just to display the main menu is quite excessive. Did I miss-configure my system? Thanks, Alberto ___ mythtv-users mailing list mythtv-users@mythtv.org http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
