Class: RubyProf::Profile
- Inherits:
-
Object
- Object
- RubyProf::Profile
- Defined in:
- lib/ruby-prof/profile.rb,
ext/ruby_prof/ruby_prof.c
Class Method Summary collapse
-
.profile { ... } ⇒ RubyProf::Result
Profiles the specified block and returns a RubyProf::Result object.
Instance Method Summary collapse
-
#detect_recursion(thread) ⇒ Object
This method detect recursive calls in the call graph.
-
#eliminate_methods!(matchers) ⇒ Object
eliminate some calls from the graph by merging the information into callers.
-
#RubyProf::Profile.new(mode, exclude_threads) ⇒ Object
constructor
Returns a new profiler.
-
#pause ⇒ RubyProf
Pauses collecting profile data.
-
#paused? ⇒ Boolean
Returns whether a profile is currently paused.
-
#post_process ⇒ Object
This method gets called once profiling has been completed but before results are returned to the user.
-
#resume { ... } ⇒ RubyProf
Resumes recording profile data.
-
#running? ⇒ Boolean
Returns whether a profile is currently running.
-
#start ⇒ RubyProf
Starts recording profile data.
-
#stop ⇒ self
Stops collecting profile data.
-
#threads ⇒ Array of RubyProf::Thread
Returns an array of RubyProf::Thread instances that were executed while the the program was being run.
Constructor Details
#RubyProf::Profile.new(mode, exclude_threads) ⇒ Object
Returns a new profiler.
== Parameters
mode:: Measure mode (optional). Specifies the profile measure mode. If not specified, defaults
to RubyProf::WALL_TIME.
exclude_threads:: Threads to exclude from the profiling results (optional).
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# File 'ext/ruby_prof/ruby_prof.c', line 477
static VALUE
prof_initialize(int argc, VALUE *argv, VALUE self)
{
prof_profile_t* profile = prof_get_profile(self);
VALUE mode;
prof_measure_mode_t measurer = MEASURE_WALL_TIME;
VALUE exclude_threads;
int i;
switch (rb_scan_args(argc, argv, "02", &mode, &exclude_threads))
{
case 0:
{
measurer = MEASURE_WALL_TIME;
exclude_threads = rb_ary_new();
break;
}
case 1:
{
measurer = (prof_measure_mode_t)NUM2INT(mode);
exclude_threads = rb_ary_new();
break;
}
case 2:
{
Check_Type(exclude_threads, T_ARRAY);
measurer = (prof_measure_mode_t)NUM2INT(mode);
break;
}
}
profile->measurer = prof_get_measurer(measurer);
for (i = 0; i < RARRAY_LEN(exclude_threads); i++)
{
VALUE thread = rb_ary_entry(exclude_threads, i);
VALUE thread_id = rb_obj_id(thread);
st_insert(profile->exclude_threads_tbl, thread_id, Qtrue);
}
return self;
}
|
Class Method Details
.profile { ... } ⇒ RubyProf::Result
Profiles the specified block and returns a RubyProf::Result object.
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# File 'ext/ruby_prof/ruby_prof.c', line 707
static VALUE
prof_profile(int argc, VALUE *argv, VALUE klass)
{
int result;
VALUE profile = rb_class_new_instance(argc, argv, cProfile);
if (!rb_block_given_p())
{
rb_raise(rb_eArgError, "A block must be provided to the profile method.");
}
prof_start(profile);
rb_protect(rb_yield, profile, &result);
return prof_stop(profile);
}
|
Instance Method Details
#detect_recursion(thread) ⇒ Object
This method detect recursive calls in the call graph.
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# File 'lib/ruby-prof/profile.rb', line 16 def detect_recursion(thread) visited_methods = Hash.new do |hash, key| hash[key] = 0 end visitor = CallInfoVisitor.new(thread) visitor.visit do |call_info, event| case event when :enter visited_methods[call_info.target] += 1 call_info.recursive = (visited_methods[call_info.target] > 1) when :exit visited_methods[call_info.target] -= 1 if visited_methods[call_info.target] == 0 visited_methods.delete(call_info.target) end end end end |
#eliminate_methods!(matchers) ⇒ Object
eliminate some calls from the graph by merging the information into callers. matchers can be a list of strings or regular expressions or the name of a file containing regexps.
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# File 'lib/ruby-prof/profile.rb', line 38 def eliminate_methods!(matchers) matchers = read_regexps_from_file(matchers) if matchers.is_a?(String) eliminated = [] threads.each do |thread| matchers.each{ |matcher| eliminated.concat(eliminate_methods(thread.methods, matcher)) } end eliminated end |
#pause ⇒ RubyProf
Pauses collecting profile data.
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# File 'ext/ruby_prof/ruby_prof.c', line 618
static VALUE
prof_pause(VALUE self)
{
prof_profile_t* profile = prof_get_profile(self);
if (profile->running == Qfalse)
{
rb_raise(rb_eRuntimeError, "RubyProf is not running.");
}
if (profile->paused == Qfalse)
{
profile->paused = Qtrue;
profile->measurement_at_pause_resume = profile->measurer->measure();
st_foreach(profile->threads_tbl, pause_thread, (st_data_t) profile);
}
return self;
}
|
#paused? ⇒ Boolean
Returns whether a profile is currently paused.
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# File 'ext/ruby_prof/ruby_prof.c', line 546
static VALUE
prof_paused(VALUE self)
{
prof_profile_t* profile = prof_get_profile(self);
return profile->paused;
}
|
#post_process ⇒ Object
This method gets called once profiling has been completed but before results are returned to the user. Thus it provides a hook to do any necessary post-processing on the call graph.
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# File 'lib/ruby-prof/profile.rb', line 9 def post_process self.threads.each do |thread| detect_recursion(thread) end end |
#resume { ... } ⇒ RubyProf
Resumes recording profile data.
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# File 'ext/ruby_prof/ruby_prof.c', line 641
static VALUE
prof_resume(VALUE self)
{
prof_profile_t* profile = prof_get_profile(self);
if (profile->running == Qfalse)
{
rb_raise(rb_eRuntimeError, "RubyProf is not running.");
}
if (profile->paused == Qtrue)
{
profile->paused = Qfalse;
profile->measurement_at_pause_resume = profile->measurer->measure();
st_foreach(profile->threads_tbl, unpause_thread, (st_data_t) profile);
}
return rb_block_given_p() ? rb_ensure(rb_yield, self, prof_pause, self) : self;
}
|
#running? ⇒ Boolean
Returns whether a profile is currently running.
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# File 'ext/ruby_prof/ruby_prof.c', line 557
static VALUE
prof_running(VALUE self)
{
prof_profile_t* profile = prof_get_profile(self);
return profile->running;
}
|
#start ⇒ RubyProf
Starts recording profile data.
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# File 'ext/ruby_prof/ruby_prof.c', line 568
static VALUE
prof_start(VALUE self)
{
char* trace_file_name;
prof_profile_t* profile = prof_get_profile(self);
if (profile->running == Qtrue)
{
rb_raise(rb_eRuntimeError, "RubyProf.start was already called");
}
#ifndef RUBY_VM
if (pCurrentProfile != NULL)
{
rb_raise(rb_eRuntimeError, "Only one profile can run at a time on Ruby 1.8.*");
}
#endif
profile->running = Qtrue;
profile->paused = Qfalse;
profile->last_thread_data = NULL;
/* open trace file if environment wants it */
trace_file_name = getenv("RUBY_PROF_TRACE");
if (trace_file_name != NULL)
{
if (strcmp(trace_file_name, "stdout") == 0)
{
trace_file = stdout;
}
else if (strcmp(trace_file_name, "stderr") == 0)
{
trace_file = stderr;
}
else
{
trace_file = fopen(trace_file_name, "w");
}
}
prof_install_hook(self);
return self;
}
|
#stop ⇒ self
Stops collecting profile data.
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# File 'ext/ruby_prof/ruby_prof.c', line 664
static VALUE
prof_stop(VALUE self)
{
prof_profile_t* profile = prof_get_profile(self);
if (profile->running == Qfalse)
{
rb_raise(rb_eRuntimeError, "RubyProf.start was not yet called");
}
prof_remove_hook();
/* close trace file if open */
if (trace_file != NULL)
{
if (trace_file !=stderr && trace_file != stdout)
{
#ifdef _MSC_VER
_fcloseall();
#else
fclose(trace_file);
#endif
}
trace_file = NULL;
}
prof_pop_threads(profile);
/* Unset the last_thread_data (very important!)
and the threads table */
profile->running = profile->paused = Qfalse;
profile->last_thread_data = NULL;
/* Post process result */
rb_funcall(self, rb_intern("post_process") , 0);
return self;
}
|
#threads ⇒ Array of RubyProf::Thread
Returns an array of RubyProf::Thread instances that were executed while the the program was being run.
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# File 'ext/ruby_prof/ruby_prof.c', line 728
static VALUE
prof_threads(VALUE self)
{
VALUE result = rb_ary_new();
prof_profile_t* profile = prof_get_profile(self);
st_foreach(profile->threads_tbl, collect_threads, result);
return result;
}
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