Bug 109263 - Web Inspector: Native Memory Instrumentation: adjust chunk transfer size for better speed.
Summary: Web Inspector: Native Memory Instrumentation: adjust chunk transfer size for ...
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Web Inspector (Deprecated) (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Ilya Tikhonovsky
URL:
Keywords:
Depends on:
Blocks: 107254
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Reported: 2013-02-07 23:51 PST by Ilya Tikhonovsky
Modified: 2013-02-08 00:19 PST (History)
8 users (show)

See Also:

Attachments
Patch (2.53 KB, patch)
2013-02-08 00:07 PST, Ilya Tikhonovsky 		yurys: review+
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Description Ilya Tikhonovsky 2013-02-07 23:51:08 PST 
With the current values the snapshot on gmail requires about 27sec.
This operation could be 30 times faster if we increase the chunk size from 100 items to 10000.
Also very long strings will significantly affect the transfer size.
Comment 1 Ilya Tikhonovsky 2013-02-08 00:07:57 PST 
Created attachment 187251 [details]
Patch
Comment 2 Yury Semikhatsky 2013-02-08 00:11:31 PST 
(In reply to comment #0)
> With the current values the snapshot on gmail requires about 27sec.
> This operation could be 30 times faster if we increase the chunk size from 100 items to 10000.
What would be an average message size in bytes in this case?
Comment 3 Ilya Tikhonovsky 2013-02-08 00:17:51 PST 
sizeof(int) * 10000 * nodeFieldCount = 200kb
sizeof(int) * 10000 * edgeFieldCount = 120kb
sizeof(int) * 10000 * idMapEntryFieldCount = 80kb
sizeof(String) * 1000 = 80kb

So the expected working set for the serializer is ~480kb
Comment 4 Ilya Tikhonovsky 2013-02-08 00:19:48 PST 
Committed r142241: <http://trac.webkit.org/changeset/142241>