Microsoft recently released RTM version of VS 2015. As part of this
release, there is an important feature which helps doing performance analysis
of application called PerTips
What are PerfTips?
As you step over
lines of code or run from breakpoint to breakpoint, the debugger will display a
PerfTip (tooltips with
performance
information) in the editor at the end of the code line indicating how long the
program was running during the previous step or since the last breakpoint. All
you need to do is look at it!
The ≤ sign
indicates that there is some debug overhead included in the PerfTip and that
this number is showing you an upper bound of how long the code took to run. The
upper bound allows you to identify which sections of code are running fast
enough, and which sections of code may need further investigation. Notice in
the screenshot above, that the PerfTip is shown after the line of code that
will be executed next. If you hover over the PerfTip you will notice that it is
a link:
When you click on
the link it brings the Diagnostic Tools window into focus so that you can see
the history of PerfTip values on the Events break track.
