Bug 165003 – Streamline and speed up tokenizer and segmented string classes

• Component: Page Loading
• Status: RESOLVED FIXED

[Darin Adler]

Streamline and speed up tokenizer and segmented string classes

[Darin Adler]

Created attachment 295282 [details]
Patch

[Build Bot]

Comment on attachment 295282 [details]
Patch

Attachment 295282 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/2550774

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 295283 [details]
Archive of layout-test-results from ews102 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews102  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 295282 [details]
Patch

Attachment 295282 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/2550776

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 295284 [details]
Archive of layout-test-results from ews105 for mac-yosemite-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews105  Port: mac-yosemite-wk2  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 295282 [details]
Patch

Attachment 295282 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2550781

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 295285 [details]
Archive of layout-test-results from ews115 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews115  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 295282 [details]
Patch

Attachment 295282 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: http://webkit-queues.webkit.org/results/2550779

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 295286 [details]
Archive of layout-test-results from ews121 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews121  Port: ios-simulator-wk2  Platform: Mac OS X 10.11.6

[Darin Adler]

Created attachment 295287 [details]
Patch

[Build Bot]

Comment on attachment 295287 [details]
Patch

Attachment 295287 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2551069

Number of test failures exceeded the failure limit.

[Build Bot]

Created attachment 295288 [details]
Archive of layout-test-results from ews117 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews117  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 295287 [details]
Patch

Attachment 295287 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/2551087

New failing tests:
http/tests/security/contentSecurityPolicy/default-src-inline-blocked.html
http/tests/security/contentSecurityPolicy/injected-inline-script-blocked.html
fast/dom/nested-script-exceptions.html
fast/dom/Document/document-write-recursion.html
http/tests/security/contentSecurityPolicy/injected-inline-style-blocked.html
http/tests/security/contentSecurityPolicy/inline-script-blocked.html

[Build Bot]

Created attachment 295290 [details]
Archive of layout-test-results from ews103 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews103  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 295287 [details]
Patch

Attachment 295287 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/2551086

New failing tests:
http/tests/security/contentSecurityPolicy/default-src-inline-blocked.html
http/tests/security/contentSecurityPolicy/injected-inline-script-blocked.html
fast/dom/nested-script-exceptions.html
fast/dom/Document/document-write-recursion.html
http/tests/security/contentSecurityPolicy/injected-inline-style-blocked.html
http/tests/security/contentSecurityPolicy/inline-script-blocked.html

[Build Bot]

Created attachment 295291 [details]
Archive of layout-test-results from ews106 for mac-yosemite-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews106  Port: mac-yosemite-wk2  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 295287 [details]
Patch

Attachment 295287 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: http://webkit-queues.webkit.org/results/2551105

New failing tests:
http/tests/security/contentSecurityPolicy/default-src-inline-blocked.html
http/tests/security/contentSecurityPolicy/injected-inline-script-blocked.html
fast/dom/nested-script-exceptions.html
fast/dom/Document/document-write-recursion.html
http/tests/security/contentSecurityPolicy/injected-inline-style-blocked.html
http/tests/security/contentSecurityPolicy/inline-script-blocked.html

[Build Bot]

Created attachment 295292 [details]
Archive of layout-test-results from ews122 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews122  Port: ios-simulator-wk2  Platform: Mac OS X 10.11.6

[Darin Adler]

Created attachment 295298 [details]
Patch

[Build Bot]

Comment on attachment 295298 [details]
Patch

Attachment 295298 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2552519

New failing tests:
fast/forms/style-display-none.html

[Build Bot]

Created attachment 295301 [details]
Archive of layout-test-results from ews114 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews114  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Darin Adler]

Created attachment 295304 [details]
Patch

[Darin Adler]

OK, I expect this time it will pass all tests. I’m measuring a 3% speedup in Speedometer on my iMac.

[Darin Adler]

Created attachment 295313 [details]
Patch

[Darin Adler]

All tests passing. No rush to review this since I’ll be out of town for a few days, but I think it’s ready to go.

[Darin Adler]

I hope someone gets a chance to review this soon. I wonder what kind of speedup we will see on ARM.

[Sam Weinig]

Comment on attachment 295313 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=295313&action=review

> Source/WebCore/html/track/BufferedLineReader.cpp:95
> +        String line = m_lineBuffer.toString();

auto?

[Darin Adler]

Committed r209058: <http://trac.webkit.org/changeset/209058>

[Saam Barati]

It looks like this is a 33% regression on the json-stringify-tinderbox Kraken test, leading to a 1-1.5% regression on the overall Kraken benchmark.

[WebKit Commit Bot]

Re-opened since this is blocked by bug 165188

[Ryan Haddad]

*** Bug 165142 has been marked as a duplicate of this bug. ***

[Ryan Haddad]

*** Bug 165151 has been marked as a duplicate of this bug. ***

[Ryan Haddad]

(In reply to comment #30)
> Re-opened since this is blocked by bug 165188

Rolled out this change in https://trac.webkit.org/r209120 due to it breaking an API test. See these bugs for details:

https://bugs.webkit.org/show_bug.cgi?id=165142
https://bugs.webkit.org/show_bug.cgi?id=165151

[Darin Adler]

Committed r209129: <http://trac.webkit.org/changeset/209129>

[Darin Adler]

(In reply to comment #29)
> It looks like this is a 33% regression on the json-stringify-tinderbox
> Kraken test, leading to a 1-1.5% regression on the overall Kraken benchmark.

Oh, I didn’t see this comment!

I will roll out the JSON stringify part of this patch and tackle the slowness in that function another way. I’ll do that right now.

[Chris Dumez]

(In reply to comment #28)
> Committed r209058: <http://trac.webkit.org/changeset/209058>

Still running A/B testing but it looks like a ~1% progression on Speedometer.

[Saam Barati]

For posterity: stringify bits rolled out in:
https://trac.webkit.org/changeset/209173