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Few months back I moved one of my websites from a shared hosting service provider to virtual dedicated server on Linode. I had to do that to set my own memory limits in PHP configurations and do other performance optimisations. I tried many performance optimisation techniques like Squid cache, MySQL optimisation, PHP APC and eAccelerator, Apache thread and process limits, code optimisations, installing mod_deflate etc etc. Though I have seen some good performance improvement, website response time is not satisfactory during peak load times. For some time now I am considering about moving my site to a dedicated server. Currently Linode is my VPS hosting service provider.
http://www.linode.com/
They are migrating all the hosting plans from UML ( user mode linux) to XEN.
I hear many webmasters say that XEN is better than UML.
So, for now I have decided to wait and watch the performance improvements after migrating to XEN. If it is satisfactory I will stay with Linode. Their customer support is excellent. If performance is poor even after migration to XEN, then I have to move to a Intel Xeon based dedicated server.
Come back after some time to see which one fared well in this experiment..
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