Commit Graph

4 Commits

Author SHA1 Message Date
mikhail.naganov@gmail.com
f332ab9615 Profiler tick processor: exploit d8's readline to avoid reading
entire file prior to parsing it. This allows processing of huge
log files (over 200 MB.)

Review URL: http://codereview.chromium.org/574015

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3811 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-02-08 08:15:18 +00:00
mikhail.naganov@gmail.com
999e3fca90 Fix issue 553: function frame is skipped in profile when compare stub is called.
The problem appeared due to a fact that stubs doesn't create a stack
frame, reusing the stack frame of the caller function. When building
stack traces, the current function is retrieved from PC, and its
callees are retrieved by traversing the stack backwards. Thus, for
stubs, the stub itself was discovered via PC, and then stub's caller's
caller was retrieved from stack.

To fix this problem, a pointer to JSFunction object is now captured
from the topmost stack frame, and is saved into stack trace log
record. Then a simple heuristics is applied whether a referred
function should be added to decoded stack, or not, to avoid reporting
the same function twice (from PC and from the pointer.)

BUG=553
TEST=added to mjsunit/tools/tickprocessor

Review URL: http://codereview.chromium.org/546089

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3673 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-01-21 16:42:41 +00:00
mikhail.naganov@gmail.com
910b5ef31a Fix issue 420: accept truncated log files.
http://code.google.com/p/v8/issues/detail?id=420

Review URL: http://codereview.chromium.org/171038

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2695 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-08-17 09:31:58 +00:00
mikhail.naganov@gmail.com
a1a962f65e Implemented processing of compressed log files.
- fixed address delta calculation;
- code creations are also compressed to be in sync with other events;
- factored out a base class from TickProcessor to reuse code in DevTools profiler.

Review URL: http://codereview.chromium.org/125256


git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@2216 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-06-18 07:59:13 +00:00