Sadly these things rely heavily on the underlying OS, so there are no platform-independent calls. (Maybe there are some wrapper frameworks, but I don’t know of any.) On Linux you could have a look at the getrusage() function call, on Windows you can use GetProcessMemoryInfo() for RAM Usage. Have also a look at the other … Read more
new PerformanceCounter(“Processor”, …); You are using the wrong counter if you insist on seeing an exact match with Task Manager or Perfmon. Use “Processor Information” instead of “Processor”. The reason these counters show different values is addressed pretty well in this blog post. Which counter is “right” is a question I wouldn’t want to touch … Read more
You can find this information in /proc/PID/stat where PID is your parent process’s process ID. Assuming that the parent process waits for its children then the total CPU usage can be calculated from utime, stime, cutime and cstime: utime %lu Amount of time that this process has been scheduled in user mode, measured in clock … Read more
I know this is an oldish question and Tim provided a great answer, but I just thought I should post an update for anyone looking for a solution to this problem, since there’s now a simpler way… As of jQuery 1.4.3 you can set the interval jQuery’s animate uses directly via the jQuery.fx.interval property. So … Read more
There is a gem in the comments on the article which kgiannakakis linked: javasysmon JavaSysMon manages processes and reports useful system performance metrics cross-platform. You can think of it as a cross-platform version of the UNIX `top’ command, along with the ability to kill processes. It comes in the form of a single JAR file … Read more
I noticed this myself a while ago, I think the problem is that every time you call setText, the size of the textbox can change, thus requiring the entire screen to go through relayout (expensive). I haven’t tried this myself yet, but if your textbox is simple and can be made to be a relatively … Read more
This article appears to provide the code you need to monitor CPU usage for a process using native Delphi. What follows is a direct quote from the above article. Using the unit When starting to monitor a process, call cnt:=wsCreateUsageCounter(Process_id) to initialize a usage counter. When you need to get the current CPU usage of … Read more
This thread is over four years old, and it still annoys me that the accepted answer criticizes the question rather than answering it. There are many valid reasons you would want to limit the CPU time taken by your program, I can list a few off the top of my head. It might seem like … Read more
According the htop source code, my assumptions looks like they are valid: (see static inline double LinuxProcessList_scanCPUTime(LinuxProcessList* this) function at LinuxProcessList.c) // Guest time is already accounted in usertime usertime = usertime – guest; # As you see here, it subtracts guest from user time nicetime = nicetime – guestnice; # and guest_nice from nice … Read more
Use PHPSysInfo library phpSysInfo is a open source PHP script that displays information about the host being accessed. It will displays things like: Uptime CPU Memory SCSI, IDE, PCI Ethernet Floppy Video Information It directly parsed parses /proc and does not use exec. Another way is to use Linfo. It is a very fast cross-platform … Read more