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scott <sco### [at] scott com> wrote:
> I meant the CPU being at 100% during the program loading, not that
> particular program using 100% all for itself. Of course I assume the OS can
> do important things, but still the CPU should not be below 100% while I am
> waiting for a program to load (assuming it's CPU bound). That would be just
> wasted time.
Often when a program loads, it reads a lot of data from the disk. This
means that most programs are I/O-intensive during loading, not CPU-intensive.
(Basically the CPU has to constantly wait for the superslow hard disk to do
its job.)
Some programs might perform some other forms of I/O during loading,
which may also cause the CPU to have to wait mostly idle. For example
a game could be loading tons of textures to the GPU memory, which takes
its time.
--
- Warp
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