java Programming Glossary: measurements

Precision vs. accuracy of System.nanoTime()

http://stackoverflow.com/questions/11452597/precision-vs-accuracy-of-system-nanotime

1 wouldn't guarantee that kind of compliance between measurements and thus wouldn't necessarily imply a high precision of time.. necessarily imply a high precision of time difference measurements. Updated 4 15 13 The Java 7 documentation for System.nanoTime..

Why is BigDecimal.equals specified to compare both value and scale individually?

http://stackoverflow.com/questions/14102083/why-is-bigdecimal-equals-specified-to-compare-both-value-and-scale-individually

of error may be important. For example if you're storing measurements made by two physical sensors perhaps one is 10x more precise..

Java Sound API to access the system/master volume control in Vista and Win 7

http://stackoverflow.com/questions/1727511/java-sound-api-to-access-the-system-master-volume-control-in-vista-and-win-7

adjust the Windows Volume to calculated levels based on measurements made when calibrating the USB sound device headphones during..

How do I calculate the elapsed time of an event in java?

http://stackoverflow.com/questions/238920/how-do-i-calculate-the-elapsed-time-of-an-event-in-java

admin user changing the clock and skew your interval measurements. System.nanoTime on the other hand returns the number of nanoseconds..

http://stackoverflow.com/questions/2422289/any-recommended-java-profiling-tutorial

The more popular one is that you proceed by getting measurements . That is you try to see how long each function takes and or..

Measuring Java execution time, memory usage and cpu load for a code segment

http://stackoverflow.com/questions/302026/measuring-java-execution-time-memory-usage-and-cpu-load-for-a-code-segment

common conventional way of achieving this in Java Such measurements are for one off performance comparisons and so I'm not looking..

Want to know whether enough memory is free on a linux machine to deploy a new application

http://stackoverflow.com/questions/3784974/want-to-know-whether-enough-memory-is-free-on-a-linux-machine-to-deploy-a-new-ap

Naturally memory management and the related statistics and measurements are more complicated than this. The numbers shown by free are..

Does use of final keyword in Java improve the performance?

http://stackoverflow.com/questions/4279420/does-use-of-final-keyword-in-java-improve-the-performance

for performance reasons you should perform appropriate measurements before bending the clearest code out of shape that way you can..

How to get link speed programmatically?

http://stackoverflow.com/questions/4429605/how-to-get-link-speed-programmatically

offer just the information you where looking for use these measurements with elapsed times and you can easily measure current average..

How do I write a correct micro-benchmark in Java?

http://stackoverflow.com/questions/504103/how-do-i-write-a-correct-micro-benchmark-in-java

something faster or slower. Rule 7 Reduce noise in your measurements. Run your benchmark on a quiet machine and run it several times..

How expensive are Exceptions [duplicate]

http://stackoverflow.com/questions/567579/how-expensive-are-exceptions

just about runtime behaviour Do you have real experiences measurements java performance exception share improve this question ..

Why do System.nanoTime() and System.currentTimeMillis() drift apart so rapidly?

http://stackoverflow.com/questions/5839152/why-do-system-nanotime-and-system-currenttimemillis-drift-apart-so-rapidly

expect some drift and jitter between these independent measurements but I expected well less than a minute per day of drift. 1 msec..

Where to stop/destroy threads in Android Service class?

http://stackoverflow.com/questions/680180/where-to-stop-destroy-threads-in-android-service-class

do stuff which can be interrupted if necessary 2 Your measurements list is accessed by multiple threads the event thread and your.. operation and only really make sense if you expect measurements to be extremely infrequent say one an hour or less . Either..

How to run 32-bit Java on Mac OSX 10.7 Lion

http://stackoverflow.com/questions/6942063/how-to-run-32-bit-java-on-mac-osx-10-7-lion

And how Also does anyone have experiences comparative measurements regarding speed and memory efficiency between the 32 64 bit..

What is the best macro-benchmarking tool / framework to measure a single-threaded complex algorithm in Java? [closed]

http://stackoverflow.com/questions/7146207/what-is-the-best-macro-benchmarking-tool-framework-to-measure-a-single-threade

how often the program has to be iterated to get accurate measurements and interprets these for reporting and warnings e.g. about outliers.. simpler grapher so that the user can visually inspect the measurements e.g. for correlations and outliers. Caliper parameterizable..

JMeter - response time calculation

http://stackoverflow.com/questions/8397700/jmeter-response-time-calculation