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8079561: Add a method to convert counters to milliseconds

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Reviewed-by: mgerdin, ehelin
This commit is contained in:
Bengt Rutisson 2015-05-08 10:30:16 +02:00
parent 00e2ae0942
commit 890471d11a
3 changed files with 9 additions and 9 deletions
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15
hotspot/src/share/vm/runtime/timer.cpp
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@ -28,9 +28,12 @@
#include "utilities/ostream.hpp"
double TimeHelper::counter_to_seconds(jlong counter) {
double count = (double) counter;
double freq = (double) os::elapsed_frequency();
return counter/freq;
return counter / freq;
}
double TimeHelper::counter_to_millis(jlong counter) {
return counter_to_seconds(counter) * 1000.0;
}
void elapsedTimer::add(elapsedTimer t) {
@ -56,8 +59,7 @@ double elapsedTimer::seconds() const {
}
jlong elapsedTimer::milliseconds() const {
jlong ticks_per_ms = os::elapsed_frequency() / 1000;
return _counter / ticks_per_ms;
return TimeHelper::counter_to_millis(_counter);
}
jlong elapsedTimer::active_ticks() const {
@ -86,11 +88,8 @@ double TimeStamp::seconds() const {
jlong TimeStamp::milliseconds() const {
assert(is_updated(), "must not be clear");
jlong new_count = os::elapsed_counter();
jlong count = new_count - _counter;
jlong ticks_per_ms = os::elapsed_frequency() / 1000;
return count / ticks_per_ms;
return TimeHelper::counter_to_millis(new_count - _counter);
}
jlong TimeStamp::ticks_since_update() const {