Bug 110104 – Web Inspector: Native Memory Instrumentation: Generate meta information for HeapSnapshot parser

• Component: Web Inspector (Deprecated)
• Status: RESOLVED FIXED

[Ilya Tikhonovsky]

The format of Native heap snapshot is slightly different so it should provide its own meta information.

[Ilya Tikhonovsky]

Created attachment 188852 [details]
Patch

[Build Bot]

Comment on attachment 188852 [details]
Patch

Attachment 188852 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://queues.webkit.org/results/16608326

New failing tests:
inspector/profiler/memory-instrumentation-cached-images.html

[WebKit Review Bot]

Comment on attachment 188852 [details]
Patch

Attachment 188852 [details] did not pass chromium-ews (chromium-xvfb):
Output: http://queues.webkit.org/results/16612190

New failing tests:
inspector/profiler/memory-instrumentation-cached-images.html
inspector/profiler/memory-instrumentation-canvas.html
inspector-protocol/nmi-webaudio-leak-test.html
inspector-protocol/nmi-webaudio.html

[Yury Semikhatsky]

Comment on attachment 188852 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=188852&action=review

> Source/WebCore/inspector/HeapGraphSerializer.cpp:64
> +    // FIXME: It is using as a magic constant for 'object' node type.

It is using -> It is used

> Source/WebCore/inspector/HeapGraphSerializer.cpp:175
> +                "[],"

Please add a comment here that we are trying to use the same array of strings as for other values instead of providing a predefined enum of types.

> Source/WebCore/inspector/HeapGraphSerializer.cpp:225
> +    m_typeStrings->setNumber(string, stringId);

This map is redundant we could store something like array of type ids instead.

> Source/WebCore/inspector/Inspector.json:81
> +                    { "name": "graphMetaInformation", "type": "object", "description": "An object describing a meta information about the heap graph."}

"An object describing structures of nodes and edges in the graph."

> Source/WebCore/inspector/front-end/HeapSnapshot.js:1034
> +                    console.log(JSON.stringify(dumpNode.serialize()));

Please add some indentation for the formatted JSON string.

[Ilya Tikhonovsky]

Committed r143218: <http://trac.webkit.org/changeset/143218>

[Alan Cutter]

(In reply to comment #5)
> Committed r143218: <http://trac.webkit.org/changeset/143218>

It seems this patch may have caused HeapGraphSerializerTest in run-api-tests to start failing: http://build.webkit.org/builders/Chromium%20Linux%20Release%20%28Tests%29/builds/44930/steps/run-api-tests/logs/stdio

Do you think these tests need rebaselining or are these results unexpected?

[Ilya Tikhonovsky]

(In reply to comment #6)
> (In reply to comment #5)
> > Committed r143218: <http://trac.webkit.org/changeset/143218>
> 
> It seems this patch may have caused HeapGraphSerializerTest in run-api-tests to start failing: http://build.webkit.org/builders/Chromium%20Linux%20Release%20%28Tests%29/builds/44930/steps/run-api-tests/logs/stdio
> 
> Do you think these tests need rebaselining or are these results unexpected?

Rebaselined. Thanks.

[Ilya Tikhonovsky]

(In reply to comment #4)
> (From update of attachment 188852 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=188852&action=review
> 
> > Source/WebCore/inspector/HeapGraphSerializer.cpp:64
> > +    // FIXME: It is using as a magic constant for 'object' node type.
> 
> It is using -> It is used

done

> 
> > Source/WebCore/inspector/HeapGraphSerializer.cpp:175
> > +                "[],"
> 
> Please add a comment here that we are trying to use the same array of strings as for other values instead of providing a predefined enum of types.
> 

done


> > Source/WebCore/inspector/HeapGraphSerializer.cpp:225
> > +    m_typeStrings->setNumber(string, stringId);
> 
> This map is redundant we could store something like array of type ids instead.
> 

I'll do that in another patch.


> > Source/WebCore/inspector/Inspector.json:81
> > +                    { "name": "graphMetaInformation", "type": "object", "description": "An object describing a meta information about the heap graph."}
> 
> "An object describing structures of nodes and edges in the graph."
> 

done


> > Source/WebCore/inspector/front-end/HeapSnapshot.js:1034
> > +                    console.log(JSON.stringify(dumpNode.serialize()));
> 
> Please add some indentation for the formatted JSON string.

I'll do that in another patch.