AuroraMiddleware/v8
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26 Commits

Author SHA1 Message Date
vitalyr@chromium.org
90c9f1b989 Suspend runtime profiler as soon as we exit JS. 
Lots of web pages have really frequently firing timers that keep the
profiler thread spinning if we require a period of JS inactivity
before suspending the profiler. While it's possible to throttle it by
increasing the sleep delay and adjusting the duration of the required
inactive period, it seemed much simpler to just stop it immediately on
exiting JS.

Stopping the profiler this way effectively turned off two optimization
heuristics: 1) eager optimization (it's reset on waking up the
profiler and now the profiler wakes up much more frequently) and 2)
optimization throttling based on JS to non-JS state ratio (the ratio
is now 100%). I removed these two heuristics and found no performance
regressions so far.

R=ager@chromium.org
BUG=crbug.com/77625
TEST=none

Review URL: http://codereview.chromium.org/7274024

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8472 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-29 14:56:08 +00:00
karlklose@chromium.org
f4e4bc43a8 Merge arguments branch to bleeding edge (second try). 
Review URL: http://codereview.chromium.org/7187007

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8315 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-16 14:12:58 +00:00
karlklose@chromium.org
cc19d1e278 Revert "Merge arguments branch to bleeding merge." 
This reverts commit ceb31498b9d69edca3260820fb4047045891ce6d.

TBR=kmillikin@chromium.org

Review URL: http://codereview.chromium.org/7172030

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8308 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-16 06:37:49 +00:00
karlklose@chromium.org
6cfeb2d400 Merge arguments branch to bleeding merge. 
Review URL: http://codereview.chromium.org/7167006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8300 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-06-15 15:09:28 +00:00
vegorov@chromium.org
08e7b94924 Fix compilation with debuggersupport=off. 
Review URL: http://codereview.chromium.org/6901026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7681 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-26 13:53:19 +00:00
fschneider@chromium.org
ef24af119e Land Kevin's patch for supporting %_CallFunction in Crankshaft. 
Original code review: http://codereview.chromium.org/6838018/

TBR=ager@chromium.org
Review URL: http://codereview.chromium.org/6869005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7624 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-15 07:58:22 +00:00
vitalyr@chromium.org
09dfc4b5d3 Add global setup for runtime profiler. 
Whether it's enabled or not must not change while we're running. Let's
not waste time recomputing it. This also makes the VM state tracking
code slightly more lightweight.

Review URL: http://codereview.chromium.org/6825054

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7593 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-12 19:15:53 +00:00
jkummerow@chromium.org
ed968b1042 Introduce runtime function %OptimizeFunctionOnNextCall to manually trigger optimization. 
TEST=existing unit tests still pass

Review URL: http://codereview.chromium.org/6821009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7572 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-11 13:24:50 +00:00
vitalyr@chromium.org
c53727f591 Fix JS ratio computation on startup. 
Review URL: http://codereview.chromium.org/6826026

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7562 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-10 08:29:18 +00:00
mikhail.naganov@gmail.com
c9904976f9 Simplify isolates access during stack iteration (WAS: Move SafeStackFrameIterator::active_count_...) 
While trying to fix Mac and Windows versions for this change:
http://codereview.chromium.org/6771047/, I figured out, that we
already store an isolate in StackFrameIterator, so we can use it in
frame objects, instead of requiring it from caller.

I've changed iterators usage to the following scheme: whenever a
caller maintains an isolate pointer, it just passes it to stack
iterator, and no more worries about passing it to frame content
accessors.  If a caller uses current isolate, it can omit passing it
to iterator, in this case, an iterator will use the current isolate,
too.

There was a special case with LiveEdit, which creates
detached copies of frame objects.

R=vitalyr@chromium.org
BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6794019

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7499 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-04-05 09:01:47 +00:00
ager@chromium.org
1bdc8031fa Introduce accessors on builtins instance and use them to avoid TLS access when getting builtins. 
R=vitalyr@chromium.org

Review URL: http://codereview.chromium.org/6717018

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7327 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-23 13:40:07 +00:00
vitalyr@chromium.org
7976ca2cbc Merge isolates to bleeding_edge. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7271 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 20:35:07 +00:00
vitalyr@chromium.org
76e226f832 Revert r7268: it borked the history. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7269 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 19:41:05 +00:00
vitalyr@chromium.org
6ff7fdebd3 Merge isolates to bleeding_edge. 
Review URL: http://codereview.chromium.org/6685088

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7268 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-18 18:49:56 +00:00
fschneider@chromium.org
ef06ab5f3e Enable optimizing JSFunctions that are in new-space. 
It avoids strange performance behavior where hot functions do not
get optimized if there is no GC to promote them, and it does not seem
to hurt us otherwise.

Review URL: http://codereview.chromium.org/6594073

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7016 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-03-02 10:16:47 +00:00
ager@chromium.org
4c8fbaffa1 Move stack check patching to the architecture dependent deoptimizer 
files. On ARM it is not enough to iterate the relocation information
because that will only give us access to the constant pool and not to
the place in the instruction stream where the target in the constant
pool is called.

Review URL: http://codereview.chromium.org/6343005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6444 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-01-24 14:54:45 +00:00
antonm@chromium.org
ec16aa9a17 Do not optimize functions which are in new space. 
If there are many shortliving closures, they pollute sampler window and
delay optimizations of functions which should be optimized.

Review URL: http://codereview.chromium.org/6344006

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6364 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-01-18 13:59:49 +00:00
antonm@chromium.org
fae90d4f32 Make closures optimizable by Crankshaft compiler. 
Currently only closures which only read from the context are supported.

Review URL: http://codereview.chromium.org/5753005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6340 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2011-01-17 08:11:03 +00:00
mikhail.naganov@gmail.com
e521db4afa Make V8 compilable with profiling support turned off. 
BUG=990

Review URL: http://codereview.chromium.org/5890003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6044 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-16 12:14:56 +00:00
karlklose@chromium.org
efe2514eb3 Fix bug that disabled optimization when profiling. 
Review URL: http://codereview.chromium.org/5720003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5972 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-10 14:49:24 +00:00
karlklose@chromium.org
f2ec8be178 Fix a bug that caused the runtime profiler to sample huge amounts of stack frames in programs with recursively called optimized functions. 
Review URL: http://codereview.chromium.org/5786001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5961 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-10 12:00:26 +00:00
karlklose@chromium.org
69d6c0bb61 Collect only optimizable function samples. 
Keep track of the ratio between JS and non-JS ticks and use this ratio to adjust the lookup threshold. (Also add support to trace compilation statistics.)


Review URL: http://codereview.chromium.org/5633009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5955 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-09 13:12:23 +00:00
vegorov@chromium.org
9ff019b49a Fix strict aliasing rule violation in runtime-profiler.cc 
Review URL: http://codereview.chromium.org/5621005

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5923 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 11:40:36 +00:00
kasperl@chromium.org
90b3370374 Update V8 to version 3.0 (re-land r5920). 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 11:31:57 +00:00
kasperl@chromium.org
51b494d096 Revert r5920. Will re-land shortly. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5921 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 11:01:02 +00:00
kasperl@chromium.org
e5860bd6a8 Update V8 to version 3.0. 
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5920 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
 2010-12-07 09:11:56 +00:00