bholley

diff --git a/ipc/glue/GeckoChildProcessHost.h b/ipc/glue/GeckoChildProcessHost.h
index 460834d9336a..efe2ea11b624 100644
--- a/ipc/glue/GeckoChildProcessHost.h
+++ b/ipc/glue/GeckoChildProcessHost.h
@@ -251,24 +251,26 @@ class GeckoChildProcessHost : public ChildProcessHost,
   // In between launching the subprocess and handing off its IPC
   // channel, there's a small window of time in which *we* might still
   // be the channel listener, and receive messages.  That's bad
   // because we have no idea what to do with those messages.  So queue
   // them here until we hand off the eventual listener.

bholley

diff -r -U8 apple/MacOSX10.11.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVAudioEngine.h MacOSX10.11.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVAudioEngine.h
--- apple/MacOSX10.11.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVAudioEngine.h	2015-10-29 14:06:32.000000000 -0700
+++ MacOSX10.11.sdk/System/Library/Frameworks/AVFoundation.framework/Headers/AVAudioEngine.h	2015-11-16 01:13:53.000000000 -0800
@@ -279,17 +279,17 @@
 		this property is first accessed. To receive input, connect another node from the output of 
 		the input node, or create a recording tap on it.
  
 		The AVAudioSesssion category and/or availability of hardware determine whether an app can
 		perform input. Check for non-nil input node and its input format (i.e. hardware format) for non-zero
 		sample rate and channel count to see if input is enabled.

bholley

Methodology:

Tested mozilla-central with an --enable-optimize --disable-debug --disable-release build. This was fast enough for testing, but the --disable-release means that the traversal times aren't meaningful (they're several times higher than they otherwise would be). That's fine though, because we just care about the number of shared styles.

I then launched the browser with DUMP_STYLE_STATISTICS=1. I tested [1] and [2], under both single-threaded and multithreaded conditions. I launched the pages, waited for them to fully load, and then executed the bookmarklet at [3] to observe a restyle. My integration of cuviper/fifo-spawn is at [4].

The metrics of interest are:
* elements_styled: The total number of elements styled.
* elements_matched: The number of elements for which we could not share.

bholley

                let err: &CStr = match err.kind {
                    ParseErrorKind::Custom(StyleParseErrorKind::MediaQueryExpectedFeatureName(
                        ..,
                    )) => cstr!("PEMQExpectedFeatureName"),

bholley

error: trailing comma is not permitted after `..`
   --> /files/mozilla/mc/r/servo/ports/geckolib/error_reporter.rs:356:27
    |
356 |                         ..,
    |                           ^

Error writing files: parse error
error: trailing comma is not permitted after `..`
   --> /files/mozilla/mc/r/servo/ports/geckolib/tests/../../../ports/geckolib/error_reporter.rs:356:27
    |

bholley

000000000456a0a0 <_ZN53_$LT$$RF$$u27$a$u20$T$u20$as$u20$core..fmt..Debug$GT$3fmt17ha7da47afc47dcdbeE>:
 456a0a0:    55                       push   %rbp
 456a0a1:    48 89 e5                 mov    %rsp,%rbp
 456a0a4:    48 8b 3f                 mov    (%rdi),%rdi
 456a0a7:    5d                       pop    %rbp
 456a0a8:    e9 53 e4 56 00           jmpq   4ad8500 <_ZN4core3fmt3num54_$LT$impl$u20$core..fmt..Display$u20$for$u20$usize$GT$3fmt17h5a7782e29a5631cdE>
 456a0ad:    0f 1f 00                 nopl   (%rax)

bholley

diff --git a/layout/style/GeckoStyleContext.cpp b/layout/style/GeckoStyleContext.cpp
index bd101d6..44a5d83 100644
--- a/layout/style/GeckoStyleContext.cpp
+++ b/layout/style/GeckoStyleContext.cpp
@@ -31,6 +31,8 @@ GeckoStyleContext::Initialize()
 }
 #endif
 
+static Atomic<size_t> gGeckoStyleContexts(0);
+

bholley

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

//! Small vectors in various sizes. These store a certain number of elements inline, and fall back
//! to the heap for larger allocations.  This can be a useful optimization for improving cache
//! locality and reducing allocator traffic for workloads that fit within the inline buffer.

use std::borrow::{Borrow, BorrowMut};
use std::cmp;

bholley

bholley@slice /files/mozilla/mc/v (slice_v) $ ./mach build
 0:00.36 /usr/bin/make -f client.mk -s
 0:01.68 Adding client.mk options from /files/mozilla/mc/v/.mozconfig:
 0:01.68     AUTOCLOBBER=1
 0:01.68     MOZ_OBJDIR=/files/mozilla/mc/v/obj-x86_64-apple-darwin16.6.0
 0:01.68     OBJDIR=/files/mozilla/mc/v/obj-x86_64-apple-darwin16.6.0
 0:01.68     FOUND_MOZCONFIG=/files/mozilla/mc/v/.mozconfig
 0:02.32 Elapsed: 0.01s; From dist/public: Kept 0 existing; Added/updated 0; Removed 0 files and 0 directories.
 0:02.32 Elapsed: 0.01s; From dist/private: Kept 0 existing; Added/updated 0; Removed 0 files and 0 directories.
 0:02.32 Elapsed: 0.01s; From dist/branding: Kept 5 existing; Added/updated 0; Removed 0 files and 0 directories.

bholley

diff --git a/perf-reftest/bloom-basic.html b/perf-reftest/bloom-basic.html
index c29a514..3a49210 100644
--- a/perf-reftest/bloom-basic.html
+++ b/perf-reftest/bloom-basic.html
@@ -4,8 +4,8 @@
     <script src="util.js"></script>
     <script>
 window.onload = function() {
-  document.head.appendChild(build_rule("caption div, caption span", 20000, '{ color: blue; } '));
-  let dom = build_dom(5000, "div");