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 %MEM TIME+ 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
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