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Acessing imageData is way too slow in the dart vm #3312

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stevemessick opened this issue May 30, 2012 · 8 comments
Closed

Acessing imageData is way too slow in the dart vm #3312

stevemessick opened this issue May 30, 2012 · 8 comments
Labels
P1 A high priority bug; for example, a single project is unusable or has many test failures
Milestone
M3

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@stevemessick
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From Dart Editor user feedback:

acessing imageData is way too slow in the dart vm making it impossible to troubleshoot my code because it must be compiled to js to be able to run at a reasonable speed
////////////////////////////////////////////////////////////////////////////////////
Editor Version: 7905
////////////////////////////////////////////////////////////////////////////////////
OS: Linux - amd64 (3.2.0-24-generic)
SDK installed = true
Dartium installed = true
AnalysisServer enabled = true
////////////////////////////////////////////////////////////////////////////////////
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DartBot commented May 30, 2012

This comment was originally written by [email protected]

We don't expose typed arrays yet. We'll address that really soon.

Set owner to [email protected].
Removed Area-VM label.
Added Area-Dartium, Accepted labels.

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DartBot commented Jun 1, 2012

This comment was originally written by [email protected]

Added this to the M1 milestone.

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DartBot commented Jun 26, 2012

This comment was originally written by [email protected]

See http://code.google.com/p/dart/issues/detail?id=2985 as another good benchmark for typedarray performance.

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DartBot commented Aug 22, 2012

This comment was originally written by [email protected]

Sorry, due to limited resources we decided to defer proper typed arrays support after M1.

Removed this from the M1 milestone.
Added this to the Later milestone.

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DartBot commented Oct 3, 2012

This comment was originally written by [email protected]

Removed this from the Later milestone.
Added this to the M3 milestone.

@iposva-google
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Based on our discussion earlier this week I am adjusting this priority. Typed array support keeps coming back over and over again. See issue #5661.

Removed Priority-Medium label.
Added Priority-High label.

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DartBot commented Jan 21, 2013

This comment was originally written by [email protected]

Added Started label.

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DartBot commented Feb 7, 2013

This comment was originally written by [email protected]

As an experiment ImageData.data has been switched to Uint8ClampedList from dart:scalarlist, so performance should be better.

Added Fixed label.

@stevemessick stevemessick added Type-Defect P1 A high priority bug; for example, a single project is unusable or has many test failures labels Feb 7, 2013
@stevemessick stevemessick added this to the M3 milestone Feb 7, 2013
@iposva-google iposva-google mentioned this issue Jun 3, 2015
Closed
copybara-service bot pushed a commit that referenced this issue Feb 8, 2023
@devoncarew
[deps] rev markdown and dartdoc
1fc33f7 
dartdoc:
494a6bed  2023-02-02  Sam Rawlins  Bump markdown dep to a pre-release of 7.0.0 (#3321)
ad6f1612  2023-02-02  Devon Carew  introduce an environmentProvider abstraction (#3324)
d0b73000  2023-02-02  Sam Rawlins  Prepare testing code for some upcoming Warnings (#3322)
936a7888  2023-02-01  Sam Rawlins  Add text about front-end manual testing (#3286)
cbee812d  2023-02-01  Sam Rawlins  Avoid renaming generator params (#3316)
bcaa0349  2023-02-01  Sam Rawlins  Privatize Library.sdkLib and move getClassByName (#3317)
af32def5  2023-01-31  dependabot[bot]  Bump github/codeql-action from 2.1.39 to 2.2.1 (#3313)
528e97da  2023-01-31  dependabot[bot]  Bump actions/cache from 3.2.3 to 3.2.4 (#3312)
54020672  2023-02-01  Parker Lougheed  Begin changelog for next release after 6.1.5 (#3315)

markdown:
f51c24c  2023-02-01  Zhiguang Chen  Prepend a line ending if the p tag is removed and there is an element before it in a *tight* list (#513)
dd3e3a1  2023-01-31  dependabot[bot]  Bump dart-lang/setup-dart from 1.3 to 1.4 (#510)
5f25fc9  2023-01-31  dependabot[bot]  Bump actions/checkout from 3.2.0 to 3.3.0 (#511)
54266b2  2023-01-31  Kevin Moore  Prepare to release v7.0.0 (#509)
d6ceff9  2023-01-31  Zhiguang Chen  Add line endings before HTML blocks (#508)
ccd3c8b  2023-01-29  Zhiguang Chen  Rewrite link reference definitions (#506)
e8f84dc  2023-01-24  Kevin Moore  Update GFM to 0.29.0.gfm.7 (#507)
93f67b0  2023-01-20  Zhiguang Chen  Add an `enableTagfilter` option to `HtmlRenderer` to eanble GFM `tagfilter` extension (#447)
d110770  2023-01-13  Zhiguang Chen  Rewrite SetextHeaderSyntax (#500)
c1b9bc6  2023-01-09  Sam Rawlins  Migrate from no-implicit-casts to strict-casts (#504)
3e78c08  2023-01-01  dependabot[bot]  Bump actions/checkout from 3.0.2 to 3.2.0 (#501)
417747f  2022-12-15  Zhiguang Chen  Refactor list syntax (#499)
30ec05f  2022-11-29  Zhiguang Chen  Do not escape single quote(apostrophe) inside code (#498)
c3d1136  2022-11-29  Zhiguang Chen  introduce a Line class (#494)
Change-Id: I9d971b927b72500ab84cce461a60fe1a86818e2e
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/281543
Reviewed-by: Samuel Rawlins <[email protected]>
Commit-Queue: Devon Carew <[email protected]>
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