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Re: Virtual Memory MySQL Server
Posted by: Daniel Beer
Date: July 08, 2013 04:54AM

Hello Rick,

i understand that much. But we have an Server with 24GB RAM, so i guess that this would be okay. But this isn't all. It grows up to 32GB continously and Swapping happens easily.

My Question was more in general: what does virtual memory mean, and how did unix calculate virtual memory?
which source is unix taking in for knowing "i have to reserve 12GB (or in the worst case 32GB) of virtual memory?".
Is it only the variables, is it the amount of data (SQL Executions like UPDATE or INSERT)?
I miss a lil bit of general understanding of the handling of reserving memory for an process in unix. when did mysql reserve ram and why? and what is the reason for it? that is merely the question i want to ask, sorry if i wasn't precise enough before.

(and again, sorry for my bad english ^^)

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