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Hey, without getting into massive details of this app (since it is huge) I am getting a memory leak some place... Let me try to explain: - I have a List<Order> that I am iterating over in a simple foreach. (this list has currently 8 thousand of "Orders") - - as the List<Order> has increased in size, this memory issues has become more of a problem - in that foreach loop I call a static method in a Drawing class called GenerateImage() - in that method it generates a bunch of unique images and stores them in a Dictionary<string, Aurigma.GraphicsMill.Bitmap> - once all of the unique assets have been created inside that Dictionary, I then place them onto a newly created destination Aurigma.GraphicsMill.Bitmap at predefined positions - the dictionary is used to not have to create the same image multiple times as I place them onto the destination Aurigma.GraphicsMill.Bitmap - the destination Aurigma.GraphicsMill.Bitmap is then returned I am forcing garbage collection to occur to highlight the memleak in this process in the below:
I have a sneaking suspicion it has to do with the Dictionary<string, Aurigma.GraphicsMill.Bitmap>... but I am not sure how to proceed... Please advise... Like I said, the app is massive with a lot of image dependencies so it is super difficult to share code snippets in a meaningful way... I will try to explain as much as I can if needed... Edited by user Wednesday, August 2, 2017 7:21:39 AM(UTC)
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Are you disposing of the bitmaps in the dictionary at the end/once they aren't needed?
Does the memory use continue to go up forever or does it even out as that isn't a lot of memory being used by the process in that screenshot.
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Originally Posted by: Chris Jones  Are you disposing of the bitmaps in the dictionary at the end/once they aren't needed?
Does the memory use continue to go up forever or does it even out as that isn't a lot of memory being used by the process in that screenshot. That is the start of the process... It will eventually use all memory and crash. Here is what i hope is a helpful snippet what I am doing regarding the Dictionary: Code:
foreach (KeyValuePair<string, Aurigma.GraphicsMill.Bitmap> kvp in assetCache)
{
// iterate over every element that matches the kvp.key and put that image onto the base
foreach (XElement elem in sheet.Data.Descendants("elem").Where(e => e.Attribute("type").Value == kvp.Key))
{
if (elem.Attribute("vertical") != null && elem.Attribute("vertical").Value.ToLower() == "true")
{
kvp.Value.Transforms.Rotate(-90);
}
baseImage.Draw(
kvp.Value,
Convert.ToInt32(elem.Attribute("x").Value) - bleed,
Convert.ToInt32(elem.Attribute("y").Value) - bleed,
CombineMode.Alpha
);
//reset
if (elem.Attribute("vertical") != null && elem.Attribute("vertical").Value.ToLower() == "true")
{
kvp.Value.Transforms.Rotate(90);
}
}
kvp.Value.Dispose();
}
// attempt to solve mem leak
assetCache.Clear();
assetCache = new Dictionary<string, Bitmap>();
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I have refactored out the need for a Dictionary, and the memory leak is still happening... so it isn't the disposing of the Dictionary items... As far as i know I am wrapping everything in a "using" so I have no idea...
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It is still unclear how the assetCache collection is built. Could you post a code where you init the assetCache variable? Code:foreach (KeyValuePair<string, Aurigma.GraphicsMill.Bitmap> kvp in assetCache)
BTW, what image formats do you process? |
Best regards,
Fedor Skvortsov
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I will write a proof of concept app that highlights this when I get a chance. I am processing uncompressed 300DPI CMYK TIF's.
I had to come up with a solution quickly which took priority over tracking down the leak.
I will have the sample app done hopefully tonight.
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Originally Posted by: Fedor It is still unclear how the assetCache collection is built. Could you post a code where you init the assetCache variable? Code:foreach (KeyValuePair<string, Aurigma.GraphicsMill.Bitmap> kvp in assetCache)
BTW, what image formats do you process? I have created an app that demonstrates the issue... how can I send it to you?
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nokturnal wrote:I have created an app that demonstrates the issue... how can I send it to you? Please submit a case and attach the application. |
Best regards,
Fedor Skvortsov
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