4 mai 2011
Understanding Memory Compression in vSphere 4.1
vSphere 4.1 comes with a new performance-enhancing feature called memory compression. It can give your system a performance boost when it starts running low on RAM. Just like swap memory, memory compression is not equal to real memory but can help to prevent degradation of performance when you're running low on memory. For comparison, memory compression is faster than swap on disk but slower than real memory.
--> The rest of the article and explanation is on the blog :
http://www.petri.co.il/memory-compression-in-vsphere-4-1.htm
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