[jboss-jira] [JBoss JIRA] Issue Comment Edited: (JBRULES-2912) Planner: Divide by zero exception on timeMillisSpend on a fast computer

[ https://issues.jboss.org/browse/JBRULES-2912?page=com.atlassian.jira.plug... ] Geoffrey De Smet edited comment on JBRULES-2912 at 3/2/11 2:47 AM: ------------------------------------------------------------------- A night sleep brings wisdom: I fixed it like this now: if (timeMillisSpend == 0L) { // Avoid divide by zero exception on a fast CPU timeMillisSpend = 1L; } long averageCalculateCountPerSecond = localSearchSolverScope.getCalculateCount() * 1000L / timeMillisSpend; If it does a 77 calculations in 0 millisecond, we presume it took 1 millisecond, which makes 77000 calculations per second on average. Note: some OS's round their system.millis to 15 ms (most notably windows XP), so I wouldn't thrust the average calculations per second on any program that run less then 2 minutes. was (Author: ge0ffrey): A night sleep brings wisdom: I fixed it like this now: if (timeMillisSpend == 0L) { // Avoid divide by zero exception on a fast CPU timeMillisSpend = 1L; } long averageCalculateCountPerSecond = localSearchSolverScope.getCalculateCount() * 1000L / timeMillisSpend; If it does a 77 calculations in 0 millisecond, we presume it took 1 millisecond, which makes 77000 calculations per second on average. Note: some OS's round their system.millis to 15 ms (most notably winblows XP), so I wouldn't thrust the average calculations per second on any program that run less then 2 minutes. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira