Currently only two stack frames are sampled (current function and its caller).
Output of tick processor looks like this:
[Call profile]:
total call path
15.2% LazyCompile: am3 crypto.js:108 <- LazyCompile: montReduce crypto.js:583
6.5% LazyCompile: am3 crypto.js:108 <- LazyCompile: bnpSquareTo crypto.js:431
2.9% Builtin: KeyedStoreIC_Generic <- LazyCompile: montReduce crypto.js:583
2.3% LazyCompile: am3 crypto.js:108 <- LazyCompile: bnpMultiplyTo crypto.js:415
Tested under Windows, Linux and OS X.
Review URL: http://codereview.chromium.org/21403
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1292 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
V8 can now be build with MinGW. It still fails the following four tests in debug mode:
mjsunit/parse-int-float
mjsunit/mirror-array.js
mjsunit/integer-to-string.js
mjsunit/regress/regress-114.js
Building with MinGW has been tested with version 5.1.4 using GCC 3.4.5.
In addition to supporting MinGW this change also makes it more explicit which targets needs to link with which libraries.
BUG=64
Review URL: http://codereview.chromium.org/20177
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1240 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Thus, instead of the following profiler records:
1.5% 1.5% LazyCompile: <anonymous>
we'll now have these:
1.5% 1.5% LazyCompile: <anonymous> richards.js:309
Basically, I translated two functions from messages.js into C++.
In the next CL I will update messages.js to use added native functions.
Review URL: http://codereview.chromium.org/19537
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1216 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This imports a Python version of Douglas Crockford's JSMin. JavaScript files can annotate that they want to be run through the minifier. Currently debug and mirror are minified.
This results in ~12k savings on the final binary size.
Review URL: http://codereview.chromium.org/19013
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1179 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
through the API. This allows us to verify state on entry through the API.
In this change verification in the API entry is checking that the current
thread holds the V8 lock when a HandleScope is instantiated if a v8::Locker
has ever been used by the V8 instance.
Review URL: http://codereview.chromium.org/18707
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1140 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
of the generated code. These can be used by the profiler to
categorize the ticks that occur within generated code and thereby show
more detailed information about where time is spent in generated code.
For instance, this is what the profiler displayed for a simple regexp
benchmark with irregexp-native before:
[JavaScript]:
total nonlib name
87.2% 87.2% RegExp: (?:\w*\W+)*
This is what we can display now:
[JavaScript]:
total nonlib name
87.2% 87.2% RegExp: (?:\w*\W+)*
- 53.0% 56.7% BranchOrBacktrack
- 14.9% 59.8% CheckCharacterLT
- 13.7% 20.4% CheckStackLimit
- 6.7% 6.7% SafeCall
- 2.7% 7.0% CheckCharacterGT
- 2.4% 2.4% SafeReturn
- 2.1% 2.1% LoadCurrentCharacter
- 1.8% 1.8% PushRegister
- 0.9% 0.9% PopRegister
- 0.9% 0.9% AdvanceRegister
- 0.3% 0.3% PopCurrentPosition
- 0.3% 0.3% CheckGreedyLoop
- 0.0% 20.4% PushBacktrack
- 0.0% 22.3% CheckCharacter
- 0.0% 2.4% IfRegisterLT
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@1010 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
break location [condition]
clear <breakpoint #>
backtrace [from frame #] [to frame #]]
frame <frame #>
step [in | next | out| min [step count]]
print <expression>
source [from line [num lines]]
scripts
continue
help
It is enabled through the option --debugger which is on by default.
Review URL: http://codereview.chromium.org/14509
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@996 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
running tests on Windows. This requires
Added the option --win-error-box to enable general protection fault
message box which can be convenient when debugging failing tests on
Windows.
Added crash detection when running tests on Windows. The output
is not fully polished but crashed indications are printed for the
different progess indicators.
Changed the OS::Abort on Windows from generating a "crash" (int3)
to calling abort(). This is to avoid tests which are known to fail
with out of memory errors to be detected as crashed tests.
Review URL: http://codereview.chromium.org/8676
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@633 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
- Changed the structure of regexp objects from having two internal
fields to having a single field containing a fixed array, since it's
easier to store the whole fixed array in the cache.
- Move printing of the command to after printing std{err,out} in the
compact progress indicators in the test framework.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@579 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
/GF) in both SCons and Visual Studio build. There is not mesurable difference
neither in speed nor in code size.
Added whole program optimization to the SCons release build. This clutters the
linking of the samples a little with the option /LTCG. This option is not
strictly needed for linking, but if it is not specified the linker complaints
as it can see object files compiled with /GL and then restarts itself with
/LTCG which dosen't look very pretty.
Review URL: http://codereview.chromium.org/5664
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@407 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
it for scripts too. In the context of Chromium, this should
have a very positive impact on memory consumption for web apps
that run multiple tabs from the same domain with a lot of the
same JavaScript code.
For now, the cache retirement policy is really simple:
Whenever a mark-sweep collection is started we clear the
cache. This guarantees that this change will not have a
huge negative impact on memory consumption, but it may
not be ideal. We should consider a more sophisticated LRU
scheme.
Review URL: http://codereview.chromium.org/1933
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@270 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
linter attempts to check them for style issues. This is not helpful. This
chance makes the presubmit linter skip the data directory where they are
located.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@182 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
- Added option to test runner that allows us to run the tests under
valgrind.
- Added test status for the failing arm simulator tests.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@116 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
to fail on Windows.
Updated mozilla.status to use correct syntax for tests that are
allowed to fail in debug mode.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@97 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
now responsible for adding the status information for the tests in the
corresponding test suite.
Added status file from mjsunit tests.
Added tests for known bugs.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@29 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
- Fixed mozilla test breakage caused by python's obscure module
loading rules.
- Made sure test.py propagates test failures out as the exit code of
the script.
- Remove runtime calls to get number constants. Remove Heap roots for
some special numbers.
- Fix typo in accessors.h.
- Changes CopyMap to not copy descriptors. Adds
CopyMapRemoveTransitions that copies non-transition descriptors.
Changes interface of DescriptorArray::Copy operations to simplify
them.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Added better test support.
Added load, quit and version functions to the shell sample so it's easier to run benchmarks and tests.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
In the shell sample don't print the result of executing a script, only
evaluating expressions.
Fixed issue when building samples on Windows using a shared V8
library. Added visibility option on Linux build which makes the
generated library 18% smaller.
Changed build system to accept multiple build modes in one build and
generate seperate objects, libraries and executables for each mode.
Removed deferred negation optimization (a * -b => -(a * b)) since this
visibly changes operand conversion order.
Improved parsing performance by introducing stack guard in preparsing.
Without a stack guard preparsing always bails out with stack overflow.
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Extended the shell sample with a --runtime-flags option.
Added Visual Studio project files for the shell.cc and process.cc samples.
git-svn-id: http://v8.googlecode.com/svn/trunk@14 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Cleaned up ARM version by removing top of stack caching and by introducing push/pop elimination.
Cleaned up the way runtime functions are called to allow runtime calls with no arguments.
Changed Windows build options to make sure that exceptions are disabled and that optimization flags are enabled.
Added first version of Visual Studio project files.
git-svn-id: http://v8.googlecode.com/svn/trunk@13 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Added a few samples and support for building them. The samples include a simple shell that can be used to benchmark and test V8.
Changed V8::GetVersion to return the version as a string.
Added source for lazily loaded scripts to snapshots and made serialization non-destructive.
Improved ARM support by fixing the write barrier code to use aligned loads and stores and by removing premature locals optimization that relied on broken support for callee-saved registers (removed).
Refactored the code for marking live objects during garbage collection and the code for allocating objects in paged spaces. Introduced an abstraction for the map word of a heap-allocated object and changed the memory allocator to allocate executable memory only for spaces that may contain code objects.
Moved StringBuilder to utils.h and ScopedLock to platform.h, where they can be used by debugging and logging modules. Added thread-safe message queues for dealing with debugger events.
Fixed the source code reported by toString for certain builtin empty functions and made sure that the prototype property of a function is enumerable.
Improved performance of converting values to condition flags in generated code.
Merged disassembler-{arch} files.
git-svn-id: http://v8.googlecode.com/svn/trunk@8 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
