On Fri, Jun 21, 2013 at 2:58 PM, pdknsk <[email protected]> wrote: > How does this work on multi-core VMs I wonder. As far as I understand, > multi-threading here doesn't mean multi-processing, so each backend still > only runs on a single core. > > Be careful when using multiple cores within Java applications; it may be faster to run everything on a single core. The author of Mailinator sped up his server by 6x by moving to a single core: http://mailinator.blogspot.com/2010/02/how-i-sped-up-my-server-by-factor-of-6.html
The TLDR of the article is that the extra cores cause memory contention depending on the type of CPU used. It might be more cost-efficient to kick up multiple 1-core Compute Engine machines than using a single multicore machine. (I need to test this when I have spare time.) ----------------- -Vinny P Technology & Media Advisor Chicago, IL App Engine Code Samples: http://www.learntogoogleit.com -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/google-appengine. For more options, visit https://groups.google.com/groups/opt_out.
