The level of precision for the high–resolution timer will vary depending on your CPU and cannot be changed. So, if you know that a given process took 100 counts and the frequency of the high–resolution timer is 250,000 counts per second, the elapsed time is 0.0004 (100 / 250,000) seconds. The high–resolution timer has two important pieces of information: the number of elapsed counts and the number of counts per second. The high–resolution timer is built into most, but not all CPUs. If the Timer function is not precise enough, you can use Windows API calls to the system high–resolution timer. StartTime and ElapsedTime should be data type Single. Note that since the Timer function provides the number of seconds since midnight, be careful using it on jobs that run overnight. The variable ElapsedTime will contain the number of seconds it took to process your code. So, if you know the Timer value at the start of a procedure and the Timer value at the end of a procedure, the difference in the two values is the number of seconds it took for the procedure to process. The Timer function counts the fractional number of seconds elapsed since midnight. This degree of precision should be accurate enough for most applications. The VBA Timer (not Time) function is typically accurate to 1/256th of a second on Windows based PCs. Many VBA processes run much faster than that. The VBA functions Now and Time are only accurate to a second. In order to record elapsed time, you need an accurate function to track time.
This article presents a few simple techniques to find the bottleneck.
#Active work timer for excel code
Do you have an Excel VBA model that runs for a long time and you don’t know why? The first step in resolving the problem is identifying the section of code that is slow.
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