Big CPU-consumption of picture viewer

2009-06-16 Thread mse
Hello all,

is anyone experiencing problems with built-in picture viewer? 

My settings: Attachments are shown in a column, not minimized as a 
symbol in message header preview. When I double-click on a 
picture-attachment the built-in picture viewer opens and CPU-usage 
increases dramatically from less than 5 to over 50 percent.
The amount of CPU consumption seems to correlate with the file size. 
My system: XP SP3, Centrino Duo 2 x 2,4 GHz, 1 GB RAM

-- 
Best regards,
mse

Using The Bat! v4.2.6 on Windows XP 5.1 Build  2600 Service Pack 3




 Current beta is 4.2.6 | 'Using TBBETA' information:
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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread Roelof Otten
Hallo mse,

On Tue, 16 Jun 2009 14:57:56 +0200GMT (16-6-2009, 14:57 +0200, where
I live), you wrote:

M is anyone experiencing problems with built-in picture viewer? 

No problems, no.

M My settings: Attachments are shown in a column, not minimized as a 
M symbol in message header preview. When I double-click on a 
M picture-attachment the built-in picture viewer opens and CPU-usage 
M increases dramatically from less than 5 to over 50 percent.
M The amount of CPU consumption seems to correlate with the file size. 
M My system: XP SP3, Centrino Duo 2 x 2,4 GHz, 1 GB RAM

Over here the PC has a slightly different config.
But  depending  on  the settings of the viewer I'm getting this with a
1.47MB picture of 4288x2848 pixels:
200% viewer: CPU usage from 0% via a short 15% peak to a steady 1%
150% viewer: the same
1:1  viewer: CPU usage from 0% via a short 15% peak to a steady 0%
50%  viewer: CPU usage from 0% via a short 22% peak to a steady 8%
20%  viewer: CPU usage from 0% via a short 21% peak to a steady 13%
10%  viewer: CPU usage from 0% via a short 25% peak to a steady 11%
Fit image  : CPU usage from 0% via a short 25% peak to a steady 15%
Fit heigth, fit width: the same

As my default setting is to view pictures 1:1 I didn't encounter any
problems, most attached pictures I get are of a size that makes 1:1 a
good choice for me.



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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread mse
Hello Roelof, hello Volker,

indeed, it's the zoom level. I understand that it consumes CPU-power
to resize a picture but from my point of view, resizing a picture is
not an endless process and CPU-workload should go back to a normal
level once resizing has finished. 
But I'll switch zoom factor to 1:1 too. Guess that will be enough.

 Over here the PC has a slightly different config.
 But  depending  on  the settings of the viewer I'm getting this with a
 1.47MB picture of 4288x2848 pixels:
 200% viewer: CPU usage from 0% via a short 15% peak to a steady 1%
 150% viewer: the same
 1:1  viewer: CPU usage from 0% via a short 15% peak to a steady 0%
 50%  viewer: CPU usage from 0% via a short 22% peak to a steady 8%
 20%  viewer: CPU usage from 0% via a short 21% peak to a steady 13%
 10%  viewer: CPU usage from 0% via a short 25% peak to a steady 11%
 Fit image  : CPU usage from 0% via a short 25% peak to a steady 15%
 Fit heigth, fit width: the same

Yous system has More power! than mine ...

-- 
Best regards,
mse

Using The Bat! v4.2.6 on Windows XP 5.1 Build  2600 Service Pack 3






 Current beta is 4.2.6 | 'Using TBBETA' information:
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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread Volker Ahrendt
[Reply to: »mse« · 2009-06-16 · 16:44 h (CET)]

Moin, Mse!

 But I'll switch zoom factor to 1:1 too. Guess that will be enough.

Nevertheless you should file a BT report. – I would confirm it. ;-)

Cheers!
VA

- --
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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread mse
Hello mse,

 Hello Roelof, hello Volker,

 indeed, it's the zoom level. I understand that it consumes CPU-power
 to resize a picture but from my point of view, resizing a picture is
 not an endless process and CPU-workload should go back to a normal
 level once resizing has finished. 
 But I'll switch zoom factor to 1:1 too. Guess that will be enough.

Further testing:
It's not the zoom level. It's the selected stretch filter.
The attached screen shot shows the CPU-load with different stretch 
filters used to resize a 1,35MB JPG-file to 150 %.

Baseline: Filter: Nearest
1st plateau: Filter Linear
2nd plateau: Filter Spline
3rd plateau: Filter Lanczos
4th plateau: Filter Mitchell

-- 
Best regards,
mse

Using The Bat! v4.2.6 on Windows XP 5.1 Build  2600 Service Pack 3


attachment: 2009-06-09_16-51_CPU-Usage.png
 Current beta is 4.2.6 | 'Using TBBETA' information:
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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread Volker Ahrendt
[Reply to: »mse« · 2009-06-16 · 16:58 h (CET)]

Moin, Mse!

 It's not the zoom level. It's the selected stretch filter.

Yep, confirmed: Stretch Filter Nearest is the best one followed by
Linear on my computer.

Cheers!
VA

- --
Volker Ahrendt | q...@ahrendt.net
Direct eMail without [tbb] in subject line will end in Nirvana!
Using /\^o^/\! 4.2.6 [Pro] on Windows XP [Pro] Service Pack 3.

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what the Universe is for and why it is here, it will instantly vanish
and be replaced by something even more bizarre and incomprehensible.
There is another theory which states that this has already happened …«

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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread mse
Hello Volker,

 Nevertheless you should file a BT report. – I would confirm it.  

Here it is:
https://www.ritlabs.com/bt/view.php?id=7632

Thanks for your comments. :yes:


-- 
Best regards,
mse

Using The Bat! v4.2.6 on Windows XP 5.1 Build  2600 Service Pack 3






 Current beta is 4.2.6 | 'Using TBBETA' information:
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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread Volker Ahrendt
[Reply to: »mse« · 2009-06-16 · 17:33 h (CET)]

Moin, Mse!

 Nevertheless you should file a BT report. – I would confirm it.

 Here it is:
 https://www.ritlabs.com/bt/view.php?id=7632

 Thanks for your comments. :yes:

Done.

Cheers!
VA

- --
Volker Ahrendt | q...@ahrendt.net
Direct eMail without [tbb] in subject line will end in Nirvana!
Using /\^o^/\! 4.2.6 [Pro] on Windows XP [Pro] Service Pack 3.

»The knack of flying is learning how to throw yourself at the ground
and miss.«

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Re: Big CPU-consumption of picture viewer

2009-06-16 Thread Rick
 Hello all,

 is anyone experiencing problems with built-in picture viewer? 

 My settings: Attachments are shown in a column, not minimized as a 
 symbol in message header preview. When I double-click on a 
 picture-attachment the built-in picture viewer opens and CPU-usage 
 increases dramatically from less than 5 to over 50 percent.
 The amount of CPU consumption seems to correlate with the file size. 
 My system: XP SP3, Centrino Duo 2 x 2,4 GHz, 1 GB RAM

I couldn't help on this one. On JPGs and GIFs in the 1 MB range it would 
momentarily increase to 10% or 12% and immediately drop.

I am not experiencing the problem.

-- 
Rick
You're only young once; you can be immature forever

v4.2.6 on Windows XP 5.1 Build  2600
Service Pack 3

 



 Current beta is 4.2.6 | 'Using TBBETA' information:
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