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Source: ma.ttias.be
How to measure Linux Performance Avoiding Most Typical Mistakes: Memory
In this series, we are talking about Linux performance measurement, how to measure it right.
Other parts in this series include: In terms of memory, we look at the physical memory and virtual memory.
Another interesting fact: if you want to look at the memory usage by the applications, in many cases we look at the virtual memory and resident memory.
Virtual memory size may exceed the amount of physical memory available many times and it is OK. The good thing is that both in the swap and in the processor in general there is actually a VM swap field which shows you how much of a process was swapped out, and that can help you to understand residence elapsed swap size.
Other parts in this series include: In terms of memory, we look at the physical memory and virtual memory.
Another interesting fact: if you want to look at the memory usage by the applications, in many cases we look at the virtual memory and resident memory.
Virtual memory size may exceed the amount of physical memory available many times and it is OK. The good thing is that both in the swap and in the processor in general there is actually a VM swap field which shows you how much of a process was swapped out, and that can help you to understand residence elapsed swap size.
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