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Performance issues after migrating to a new server with better hardware config

Question asked by V V on Jun 26, 2015
Latest reply on Dec 2, 2015 by Mark Willert
I need help optimizing a server. We are currently using a pc with below configuration  as a server (current) for Sugarcrm.

Hard disk: SATA 500GB 7200 rpm
OS: Ubuntu 12.04 LTS
SugarCRM version: 6.5.10 CE
DB: mysql
DB size: Around 5 GB

Since the number of users were increasing we thought of migrating to a server (new) based hardware with below configuration

Processor: Xeon E5-2630v3 8 core x 2
Hard disk: SAS 1 TB Raid
OS: Ubuntu 14.04 LTS
SugarCRM version: 6.5.10 CE
DB: mysql
DB size: Same as above

Surprisingly, the same lead takes about 4.5 seconds to open on current i7 pc but takes about 12 seconds on the xeon server. The xeon server currently does not have any users connected to it as we are unable to resolve the issues related to performance.

We even tried taking a clone of the current server but didn't help.

We've spent about 20 days trying to optimize it but are still unable to do the same. Could anyone please suggest how we can identify what the bottleneck might be.

I'm attaching a top command screen shot for reference.

Any help would be greatly appreciated. Thanks in advance.