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25

CPU time is allocated in discrete time slices (ticks). For a certain number of time slices, the cpu is busy, other times it is not (which is represented by the idle process). In the picture below the CPU is busy for 6 of the 10 CPU slices. 6/10 = .60 = 60% of busy time (and there would therefore be 40% idle time). A percentage is defined as "a number or ...


10

The CPU time is the time that the process is using the CPU - converting it to a percentage is done by dividing by the amount of real time that's passed. So, if I have a process that uses 1 second of CPU time over a period of 2 seconds, it's using 50% of a CPU. In the case of your MATLAB process, 217% indicates that it's used 2.17 seconds of CPU time per ...


3

No CPU requirements listed by FreeNAS because it does nothing but change some of the speed and how much that does is very dependent on setup. If you use hardware RAID and/or mirrored RAID then the CPU does practically nothing. That's why many of these kinds of boxes are built out of single core, 32bit Atom procs. So in most cases your Celeron would do just ...


3

It will run, but it won't take advantage of any new CPU features. CPU upgrades are rarely or never an issue; where you will run into problems is with other hardware in the new server, such as storage and network drivers. EL5 is in Production 3 phase, meaning no new hardware enablement will be shipped, and Red Hat expects existing servers to be virtualized ...


1

Your software is likely licensed per (visible) CPU socket. If you configure your destination virtual machine with the appropriate socket and core count, it doesn't really matter where ESXi decides to schedule threads on the underlying hardware. Your software should only be concerned with what's visible to the virtual machine. In this case, a 1-socket, 4-core ...


1

Is it fair to assume (in this and similar cases): numbers 0 to 11 represent each of the physical cores (or are the 'hyperthreads' numbered too)? Yes and yes HT are included if I wanted to limit the VM to run on one of the physical CPUs, I should enter either 0-5 or 6-11 (or are these numbers in some different pattern)? ...


1

You can verify if GC is the issue by using Performance Monitor and the '.NET Memory\% Time in GC' performance counter. If you only have one .NET process on the server, you can just use the _total instance. Otherwise you'll have to find the instance that has a matching process ID and watch that one (though be aware that the instance name for you application ...



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