J
James Palmer
Guest
Numa and progress are like oil and water. My understanding of the architecture and why is hazy so I'll leave that to someone else to explain, but I've seen evidence in practise. I believe one thing you can try is to disable some of the CPUs and rerun your benchmark and see if it improves. Disabling the processors forces numa to deactivate. James Palmer | Application Developer Tel: 01253 785103 From: RussellAdams Sent: 09/12/2014 22:53 To: TU.OE.RDBMS@community.progress.com Subject: RE: [Technical Users - OE RDBMS] Performace degradation between / /Power8 RE: Performace degradation between / /Power8 Reply by RussellAdams Sometimes what is happening is just that the new system has a cold cache For 4-12 hours on a system with 4 x 16GB HBAs? I agree the cache can be cold, but I could read the whole 500GB into RAM in a fraction of that time. NUMA is a glaring possibility I'd love to know more about NUMA issues in relation to Progress, especially as it applies to the POWER platform. Can you elaborate? Stop receiving emails on this subject. Flag this post as spam/abuse. This email has been scanned for email related threats and delivered safely by Mimecast. For more information please visit http://www.mimecast.com
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