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Posted to commits@santuario.apache.org by "Maxim Makeev (JIRA)" <ji...@apache.org> on 2011/03/22 13:59:05 UTC
[jira] [Created] (SANTUARIO-267) high memory and processor time
cost while signing big files
high memory and processor time cost while signing big files
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Key: SANTUARIO-267
URL: https://issues.apache.org/jira/browse/SANTUARIO-267
Project: Santuario
Issue Type: Task
Components: C++
Affects Versions: C++ 1.6.0
Environment: OS: Windows 7 x64
Build: MS Visual Studio 2010 (x86 and x64)
Xerces 3.1.1
Reporter: Maxim Makeev
Assignee: Scott Cantor
Test file (36MB) is XML document.
Signing and verifying signature on this file takes 20 seconds, but .NET XML Sigature library makes it ten times faster..
Bottleneck is canonicalisation. TXFMC14n::readBytes gets too much processor's time while operation. Any canonicalization type works this way.
Application allocates ~360MB (x86) and ~700MB(x64) while signing. Half of this memory allocates while parsing XML and half while canonisation...
Its to much, because we need to work with big documents. Is it possible to optimize this operations?
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[jira] [Commented] (SANTUARIO-267) high memory and processor time
cost while signing big files
Posted by "Scott Cantor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/SANTUARIO-267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009666#comment-13009666 ]
Scott Cantor commented on SANTUARIO-267:
----------------------------------------
One point to consider is that if it's a memory allocation issue slowing things down, that would indicate it's a problem with the Xerces DOM, and it might work better to alter the Xerces allocation strategy or provide a custom memory manager there.
> high memory and processor time cost while signing big files
> -----------------------------------------------------------
>
> Key: SANTUARIO-267
> URL: https://issues.apache.org/jira/browse/SANTUARIO-267
> Project: Santuario
> Issue Type: Task
> Components: C++
> Affects Versions: C++ 1.6.0
> Environment: OS: Windows 7 x64
> Build: MS Visual Studio 2010 (x86 and x64)
> Xerces 3.1.1
> Reporter: Maxim Makeev
> Assignee: Scott Cantor
>
> Test file (36MB) is XML document.
> Signing and verifying signature on this file takes 20 seconds, but .NET XML Sigature library makes it ten times faster..
> Bottleneck is canonicalisation. TXFMC14n::readBytes gets too much processor's time while operation. Any canonicalization type works this way.
> Application allocates ~360MB (x86) and ~700MB(x64) while signing. Half of this memory allocates while parsing XML and half while canonisation...
> Its to much, because we need to work with big documents. Is it possible to optimize this operations?
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
[jira] [Commented] (SANTUARIO-267) high memory and processor time
cost while signing big files
Posted by "Scott Cantor (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/SANTUARIO-267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13009663#comment-13009663 ]
Scott Cantor commented on SANTUARIO-267:
----------------------------------------
No, I have no plans to do work of that magnitude on this code, and my use cases are for small messages. If somebody else wants to join the project and rearchitect the code, they are of course very welcome.
This isn't terribly helpful to you, but I didn't want you to labor under the impression there was any chance of me working on it, and right now I'm the only one maintaining this library.
> high memory and processor time cost while signing big files
> -----------------------------------------------------------
>
> Key: SANTUARIO-267
> URL: https://issues.apache.org/jira/browse/SANTUARIO-267
> Project: Santuario
> Issue Type: Task
> Components: C++
> Affects Versions: C++ 1.6.0
> Environment: OS: Windows 7 x64
> Build: MS Visual Studio 2010 (x86 and x64)
> Xerces 3.1.1
> Reporter: Maxim Makeev
> Assignee: Scott Cantor
>
> Test file (36MB) is XML document.
> Signing and verifying signature on this file takes 20 seconds, but .NET XML Sigature library makes it ten times faster..
> Bottleneck is canonicalisation. TXFMC14n::readBytes gets too much processor's time while operation. Any canonicalization type works this way.
> Application allocates ~360MB (x86) and ~700MB(x64) while signing. Half of this memory allocates while parsing XML and half while canonisation...
> Its to much, because we need to work with big documents. Is it possible to optimize this operations?
--
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