Messages in this thread | | | Date | Mon, 09 May 2005 14:09:10 -0600 | From | Chris Friesen <> | Subject | Re: /proc/cpuinfo format - arch dependent! |
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Bill Davidsen wrote:
> Might I suggest that if you like the "we know best just trust us" > approach, there is another OS to use. Making information available to > good applications will improve system performance, or at least allow > better limitation of requests for resources
What will you do with the information? The kernel is doing all the resource allocation and scheduling.
From a higher-level, the application wants the best performance. Doesn't it make more sense to have an API that lets you query things like: how many cores do I have, how many separate memory interfaces do I have, how many cores handle interrupts, etc.
Based on that information you tell the system: "I've got 4 processes, please put them all on cores with separate memory connectivity since they're all memory-intensive. Now please put these other two threads on the same cpu since they share memory but serialize each other by design."
The app shouldn't care about the details of architecture, but it should be able to work with the system to give the best performance.
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