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Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51173]

Fri, 15 February 2019 08:21

jjacksonRIAB
Messages: 225
Registered: June 2011

Experienced Member

Platform: Win7x64

Even the simplest examples cause large memory usage increases every time the window is moved to the edge of the desktop to prompt a resize until memory usage plateaus. Insufficient reclamation occurs - it will sustain high memory usage until another image is chosen. In sufficiently complex images moving to desktop extents rapidly will cause the application to freeze for a few seconds. Thoughts?

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51175 is a reply to message #51173]

Fri, 15 February 2019 19:56

jjacksonRIAB
Messages: 225
Registered: June 2011

Experienced Member

The number of page faults also appears to increase significantly to around 30,000-40,000/second while moving the window to the extents, though I'm not sure how significant that is.

[Updated on: Fri, 15 February 2019 20:11]

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51199 is a reply to message #51173]

Tue, 19 February 2019 14:29

mirek
Messages: 14158
Registered: November 2005

Ultimate Member

jjacksonRIAB wrote on Fri, 15 February 2019 08:21

Platform: Win7x64

every time the window is moved to the edge of the desktop to prompt a resize until memory usage plateaus.

Somehow I cannot decifer what exactly this means... especially I am confused by "prompt a resize"... Smile

Other than that, what U++ version is this? 2018.1 or trunk?

Mirek

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51200 is a reply to message #51199]

Tue, 19 February 2019 14:50

peterh
Messages: 108
Registered: November 2018
Location: Germany

Experienced Member

mirek wrote on Tue, 19 February 2019 14:29

jjacksonRIAB wrote on Fri, 15 February 2019 08:21
Platform: Win7x64

every time the window is moved to the edge of the desktop to prompt a resize until memory usage plateaus.

Somehow I cannot decifer what exactly this means... especially I am confused by "prompt a resize"...

In Win7, if a window is moved, as soon as the mousearrow touches the outer margin of the deskop, Windows draws a resized ghost image of the window that is attached to the mouse and offers to resize the window automatically.

[Updated on: Tue, 19 February 2019 14:54]

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51201 is a reply to message #51200]

Tue, 19 February 2019 14:56

mirek
Messages: 14158
Registered: November 2005

Ultimate Member

peterh wrote on Tue, 19 February 2019 14:50

mirek wrote on Tue, 19 February 2019 14:29
jjacksonRIAB wrote on Fri, 15 February 2019 08:21
Platform: Win7x64

every time the window is moved to the edge of the desktop to prompt a resize until memory usage plateaus.

Somehow I cannot decifer what exactly this means... especially I am confused by "prompt a resize"...

In Win7, if a window is moved, as soon as the mousearrow touches the outer margin of the deskop, Windows draws a resized ghost image of the window that is attached to the mouse and offers to resize the window automatically.

Ah, this, thanks!

Mirek

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51229 is a reply to message #51201]

Sat, 23 February 2019 17:22

jjacksonRIAB
Messages: 225
Registered: June 2011

Experienced Member

Yes, that's what I meant. Sorry what I said was unclear.

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51230 is a reply to message #51229]

Sat, 23 February 2019 18:30

mirek
Messages: 14158
Registered: November 2005

Ultimate Member

jjacksonRIAB wrote on Sat, 23 February 2019 17:22

Yes, that's what I meant. Sorry what I said was unclear.

Can you try with trunk? (I have made some optimizations).

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51231 is a reply to message #51230]

Sat, 23 February 2019 19:09

jjacksonRIAB
Messages: 225
Registered: June 2011

Experienced Member

Sure, the memory usage appears to be a lot better now - going from 7.1 to 29.

The one example I am still having problems with is the Pythagoras tree causing the window to stop and lag when the image is clipped off the edge of the screen, though the memory usage is down on that as well so I think that's a separate issue.

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51243 is a reply to message #51231]

Mon, 25 February 2019 09:11

mirek
Messages: 14158
Registered: November 2005

Ultimate Member

jjacksonRIAB wrote on Sat, 23 February 2019 19:09

Sure, the memory usage appears to be a lot better now - going from 7.1 to 29.

The one example I am still having problems with is the Pythagoras tree causing the window to stop and lag when the image is clipped off the edge of the screen, though the memory usage is down on that as well so I think that's a separate issue.

Pythagoras tree is extreme example. That one is slow no matter what...

Mirek

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51249 is a reply to message #51243]

Mon, 25 February 2019 11:16

jjacksonRIAB
Messages: 225
Registered: June 2011

Experienced Member

Ahh, so if I wanted to keep fluid movement, I'd have to render it to an image or something else that would allow some stretching (that likely won't be noticed anyway) so the clipping computation becomes temporarily simpler?

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51255 is a reply to message #51249]

Mon, 25 February 2019 12:06

mirek
Messages: 14158
Registered: November 2005

Ultimate Member

jjacksonRIAB wrote on Mon, 25 February 2019 11:16

Ahh, so if I wanted to keep fluid movement, I'd have to render it to an image or something else that would allow some stretching (that likely won't be noticed anyway) so the clipping computation becomes temporarily simpler?

Well, if you render things with similar complexity, then you definitely should take some steps...

Mirek

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Re: Painter: Excessive memory usage in PainterExamples moving window to edges of screen. [message #51260 is a reply to message #51255]

Mon, 25 February 2019 12:50

jjacksonRIAB
Messages: 225
Registered: June 2011

Experienced Member

Will do, then. Thanks, Mirek - the reduction in memory usage is great!

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