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nivertech on May 26, 2011 | parent | context | favorite | on: BareMetal is a 64-bit OS for x86-64 based computer...

I don't have a link, but something similar was done with custom kernels with Redis compiled to run native above Xen - the performance gain was only ~ 13% - so in this case it didn't worth the trouble.

But if you a large HPC cluster, getting 13% more of each compute node definitely worth the trouble.

EDITED: see link in child's post

davej on May 26, 2011 [–]

Not EC2, but is this what you are thinking about?… http://openfoo.org/blog/redis-native-xen.html

kwis on May 26, 2011 | [–]

That's interesting, though I think my takeaway was that the "performance tax" of the operating system layer is pretty minor, all things considered.

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