Comments for Glenn Berry's SQL Server Performance http://sqlserverperformance.wordpress.com Semi-random musings about SQL Server performance Thu, 13 Mar 2014 20:32:36 +0000 hourly 1 http://wordpress.com/ Comment on Selecting an Appropriate Intel Xeon E5-2600 v2 Family Processor for SQL Server 2012 by Glenn Berry http://sqlserverperformance.wordpress.com/2013/09/17/selecting-an-appropriate-intel-xeon-e5-2600-v2-family-processor-for-sql-server-2012/#comment-8526 Thu, 13 Mar 2014 20:32:36 +0000 https://sqlserverperformance.wordpress.com/?p=2022#comment-8526 That would depend on your workload, i.e. whether it was more of an OLTP workload or more of a DW workload, and on your expected volume of concurrent queries. For a pure OLTP workload, a lower core count processor with a higher clock speed will perform better for individual queries (which are mostly going to be running on one core). You will have less overall CPU capacity with fewer total cores, so you will be able to support fewer concurrent queries.

If you have more of a DW workload, with longer-running queries that are usually running one more than one core, then the 12-core SKU will give better performance.

All of this assumes that you have enough RAM and enough I/O performance so that the CPU is the main bottleneck.

]]> Comment on Selecting an Appropriate Intel Xeon E5-2600 v2 Family Processor for SQL Server 2012 by Gabriel Cuevas http://sqlserverperformance.wordpress.com/2013/09/17/selecting-an-appropriate-intel-xeon-e5-2600-v2-family-processor-for-sql-server-2012/#comment-8524 Thu, 13 Mar 2014 17:25:25 +0000 https://sqlserverperformance.wordpress.com/?p=2022#comment-8524 Hi Glenn, I’d appreciate some guidance. If we assume that license cost is not a factor and I can choose between the 10 or 12 core models, do you have a preference if the primary variance is clock speed? In a two socket machine, are four additional cores at a lower clock speed going to perform better than the 20 total cores at a higher clock speed? What factors should I consider in making this choice? Thanks in advance! ]]> Comment on SQL Server Diagnostic Information Queries for February 2014 by Richard Lee http://sqlserverperformance.wordpress.com/2014/02/06/sql-server-diagnostic-information-queries-for-february-2014/#comment-8165 Thu, 20 Feb 2014 08:59:00 +0000 https://sqlserverperformance.wordpress.com/?p=2046#comment-8165 Thanks. Seriously useful as it turned out that our production boxes plan caches were full of ad-hoc query plans, so we turned on the “optimize for ad-hoc workloads” after a CU upgrade reboot and since then our top 50 are mainly prepared query plans. ]]> Comment on Three Generations of Toshiba Portege Laptops Compared by Glenn Berry http://sqlserverperformance.wordpress.com/2012/08/07/three-generations-of-toshiba-portege-laptops-compared/#comment-8035 Sun, 09 Feb 2014 16:40:16 +0000 https://sqlserverperformance.wordpress.com/?p=1899#comment-8035 I don’t have my R835 any longer, but I think that I was seeing SATA III speeds from it (if memory serves). If there is a problem there, I would not hold that much hope of Toshiba fixing it, since that model is long out of production now. ]]> Comment on Three Generations of Toshiba Portege Laptops Compared by Aman http://sqlserverperformance.wordpress.com/2012/08/07/three-generations-of-toshiba-portege-laptops-compared/#comment-8014 Fri, 07 Feb 2014 23:13:19 +0000 https://sqlserverperformance.wordpress.com/?p=1899#comment-8014 Hi,
I read your reviews, pretty helpful. Thanks for that. I would like to comment though that the R835′s have a problem of the SATA port being limited to SATA2 speeds by Toshiba’s bios. Its a big issue. there has been many big forums, complaints and efforts about making toshiba to take this limit off from their bios. Toshiba reps have usually replied by saying that they would do that if their models came with SATA3 SSD’s. Do you have any comments on this. Have you gotten any SST to show SATA3 speeds on your R835 ever? Since you seem to hae many kinds of SSD’s you can probably try.
Thanks ]]> Comment on Three Generations of Toshiba Portege Laptops Compared by Larry http://sqlserverperformance.wordpress.com/2012/08/07/three-generations-of-toshiba-portege-laptops-compared/#comment-8005 Fri, 07 Feb 2014 00:02:36 +0000 https://sqlserverperformance.wordpress.com/?p=1899#comment-8005 How about an update on the laptop(s) you are using now. Your earlier comments were spot on and I’d be interested in your recommendations especially for ultra books. Thanks ]]> Comment on Choosing a Mobile Workstation by Glenn Berry http://sqlserverperformance.wordpress.com/2012/08/11/choosing-a-mobile-workstation/#comment-7945 Fri, 31 Jan 2014 15:57:17 +0000 https://sqlserverperformance.wordpress.com/?p=1902#comment-7945 Yeah, I need to do an updated version of this post, to cover newer models. Thanks! ]]> Comment on Choosing a Mobile Workstation by Dustin Jones http://sqlserverperformance.wordpress.com/2012/08/11/choosing-a-mobile-workstation/#comment-7944 Fri, 31 Jan 2014 15:24:43 +0000 https://sqlserverperformance.wordpress.com/?p=1902#comment-7944 Hi Glenn, Any chance you could update this post with the latest offerings from Dell? I’m in the market looking to buy a laptop powerful enough to run multiple VMs with SQL server for a home lab. Thanks for the great info! ]]> Comment on SQL Server Diagnostic Information Queries for January 2014 by (SFTW) SQL Server Links 17/01/14 - SQL Server - SQL Server - Toad World http://sqlserverperformance.wordpress.com/2014/01/14/sql-server-diagnostic-information-queries-for-january-2014/#comment-7920 Fri, 17 Jan 2014 10:03:00 +0000 https://sqlserverperformance.wordpress.com/?p=2042#comment-7920 […] SQL Server Diagnostic Information Queries for January 2014 - Glenn Berry (Blog|Twitter) […] ]]> Comment on SQL Server Diagnostic Information Queries for January 2014 by (SFTW) SQL Server Links 17/01/14 • John Sansom http://sqlserverperformance.wordpress.com/2014/01/14/sql-server-diagnostic-information-queries-for-january-2014/#comment-7919 Fri, 17 Jan 2014 09:22:30 +0000 https://sqlserverperformance.wordpress.com/?p=2042#comment-7919 […] SQL Server Diagnostic Information Queries for January 2014 - Glenn Berry (Blog|Twitter) […] ]]>