Sql server sockets vs cores. I have 1 SQL Server with two databases.

Sql server sockets vs cores I have one terminal server that mostly gets used for office applications. I want to deploy a SQL server VM and I am a bit confuse while allocating CPU. Some applications behave differently with cores per socket variations. SQL Server will have a greater number of schedulers, which means more workers, which means more threads can be executed across more cores - you'll still be constrained by RAM and storage I/O though. In that case, you can configure up to 4 x 6 core processors or 2 x 12 core processors. 45 (improvement factor 5. Since the most common method to license SQL Server is by the core, there is real value in spending the money to make sure the VM hosts have high-powered CPUs rather than CPUs that might have a lower cost, lower power This question is very broad, and the answer depends very much on the nature of your workloads and your planned SQL Server setup. It is 2016 and some people still think SQL Server cannot be run on a virtual machine. It has a limitation of 4 sockets and 24 cores. 4 (improvement factor 1. reconfigure the VMware hosts, and boot you up with a different sockets/cores mix. Practically speaking there's no difference between sockets and cores. 11 = not possible (without negative impact) 12 = 2 sockets 6 cores I just got a HP server with 2 Xeon CPUs and 32GB of ram. Even though they're sitting on 2 sockets, they seem to be on the same NUMA node (the server is virtualized by VMWare) (coreinfo output): MAXDOP is set to 6, which is an entire socket. SQL Server is licensed per processor socket, and not per logical CPU basis. An operating system/application will schedule work differently on an 8 socket 1 core system than a 1 socket 8 core system (because communication between threads on different sockets is more expensive than between cores on the same socket). If it's a general vm the one core per socket method is fine. This led to rampant CXPACKET waits because queries went wild with parallelism. For example comparing one server with 2 Dual Core CPUs to a similarly configured machine with a Single Quad core, or even four single core processors. The new one and two-socket servers with the latest generation processors from AMD and Intel are much less expensive than two and four-socket servers from a few years ago. D. I am installing a 2014 SQL Server VM on VMware. SQL Server detected 8 sockets with 8 cores per socket and 8 logical processors per socket, 64 total logical processors; using 20 logical processors based on SQL Server licensing. There are 16 physical cores per socket and 32 logical cores per socket. Rule of thumb - match the underlying hardware topology. Heck, take NUMA minimums into consideration. It is the physical Processor on the server. Not following best practices can be the difference between poor vs exceptional virtual SQL Server First, SQL Server will only use the number of sockets or cores that the SQL Server Standard Edition license allows. To verify how many CPU’s your SQL Database Server can see, type the following SQL Query: select cpu_count from sys. Follow 14 votes, 46 comments. We’ve helped many clients optimize performance simply by fixing this ratio. One of the checks that I did was to check how many CPUs the server has, and how many CPUs the SQL Server is configured to work with. We build a VM with 1 socket and 32 cores. A general estimation is that 1 vCPU = 1 Physical CPU Core. If you had 2 physical sockets on the host you could do 2 sockets with two cores each, but still not 4 sockets with 1 core each. Try using 4 sockets with 16 virtual cores (4 cores per socket). Azure is also licensed on the basis of virtual By default vmware will push you to one core per socket and increase only sockets. The memory on this box is seperated into 4 seperate nodes, each attached to a single socket. " My understanding is that it would be able to use two or more cores in parallel. It will make a performance difference. Hi all, I thought I knew the answer to this but I’ve read some contradicting answers from different sources recently and now I am not so sure. This gives us now only 2 vSockets in the Virtual Machine. For a list of instance types that are available for SQL Server Standard edition, see the Amazon RDS for SQL Server documentation. For SQL Server Standard edition can only use the lesser of 4 sockets and 24 cores and is not NUMA aware. 1 physical cpu in GEN4 is represent one core that based on Intel E5-2673 v3 (Haswell) 2. New comments cannot be posted and votes cannot be cast. 4 Virtual sockets X 2 number of cores per socket. Which approach is the best ? and why? a. In this tip we will provide a PowerShell script that you can use to query your servers for the number of processors (CPUs) and cores. licenses under SA will be exchanged for a minimum of 4 SQL Server Enterprise Edition: $7,128 per core; SQL Server Standard Edition: $1,859 per core; SQL Server Standard Edition Server Licensing: $931 plus $209 per named user client access license (CAL) This server would be used for general purpose hyper-v, sql database, terminal servers, or single purpose all-in-one server. For each SQL Server Core license with active SA coverage, customers can use one virtual core in a VM/OSE deployed on a shared server infrastructure, subject to a minimum of 4 core licenses per VM/OSE. 18 Server Registry startup parameters: -d master. 45GHz base), they all offer the same number/speed of memory lanes. Hyper-V in Server 2008 and Server 2008 R2 projects a virtual topology to the VM that looks like a single CPU with multiple cores. He wanted to know how many virtual processors are there available for SQL Server. Options: 2 CPUs (2. I want to know the factors behind this. If there isn't heavy load on the node you probably wouldn't notice, but you should use 1 socket and 4 cores if you have a single socket node. But unfortunately, there’s no single page that has these details centralized for all SQL Server versions and If your SQL server needs 4 dual core processors, an 8 core VM is what you want. Hi, We are looking at a new server for a client with approx. Hi Klaus, Great article! I do have a situation in which it is unclear to me if I should set any affinity mask or not. And that's OK. Current one and two-socket servers with the latest When creating virtual machines in different hypervisors (VMWare, KVM, Hyper-V, etc. true. My assumption is that SQL Server 2014 will use the same core-based licensing The server is SQL Server 2012 Enterprise edition. 71) Between 1 and 4 cores we go from 2. Would you please clarify this last bit a little further? In the OP’s situation, assuming this server was a VM host would he be able to deploy a VM, assign it to use (4) vCPU’s and then purchase (4) MS-SQL Core licenses? Also is there a difference between say assigning (1) socket & (4) cores per socket or (2) sockets & (2) cores per socket? It allows only 4 sockets. vSphere High Availability (HA) and vSphere Fault Tolerance (FT) provide simple and reliable protection for SQL Server virtual machines and can be used in conjunction with SQL Server’s own HA capabilities. If you had created it as 4x4 (4 sockets and 4 cores) it wouldn’t be a valid configuration for that SQL license on that guest vm. Second, by default, the cores that SQL Server will use will not be evenly balanced across your NUMA nodes. I need your help to figure out what to do with CPUs and cores. We see 78, 72, 58 TPC-E/core at 2,4 and 8 sockets. After reconfiguring the VM to use 2 sockets with 4 cores each (mirroring our physical hardware), it was able to use all 8 cores. SQL Server accesses data and log files with very different I/O patterns. vSphere High Availability (HA) and vSphere Fault Tolerance (FT) provide It is limited to lesser of 4 sockets or 24 cores, and to less than 128 GB buffer pool per instance. 1 Cores Per Socket 8 Sockets Server #3 4 CPU 1 Cores Per Socket 4 Sockets. Few months we changed server to Windows Server 2012. dm_os_sys_info. Looking at this blog post it would seem 16 socket to 1 core may be the best setup: SQL Server is licensed by the core. Accessible processor sockets and cores are based on the Windows License, and then the database edition may further limit CPU cores. I would really appreciate your help. Core-based licensing is typically the only option you have at your disposal when the SQL server in question is being accessed by devices and users outside your company’s network, since Server + CAL licenses would require you to purchase a license for every external person/device, which would not only be expensive, it would also be impossible to keep track of. I am using core licensing since I can’t plan for the number of users who will be connecting. I will hae 2 physical sockets (CPUS) The server runs both OLTP and OLAP processing. Nodes Offline: Why Your SQL Server VM Can’t Use All Its Virtual Hardware by Brent Ozar; SQL Server 2019 Standard Edition Licensing by Glenn Berry; Since a socket has cores, I think of it like apples - for example: lesser of 4 apples or 24 slices. Archived post. 00 for Enterprise Edition. ” If the virtual machine is configured with 1 Socket x 8 Cores per Socket, all 8 vCPUs ) with 8 cores, but 1 core per socket – meaning you are using 8 sockets – 4 more than SQL Server standard supports. A Physical CPU could be dual-core,quad-core. Best Answer 2 Recommend. Ideally, you want the guest virtual machines Socket/Core configuration to vSphere Distributed Resource Scheduler™ (DRS) can be used to dynamically balance SQL Server workloads between physical servers. So too did BizTalk 2013. The host has a Xeon E5606 @ Another example would be to have two, two-socket servers with very fast, low-core count processors instead of one, two-socket server with much slower, high core-count processors. The SQL Express licensing specifies that a SQL Express instance can use the lessor of 1 socket or 4 cores. Based on your 2 x 6 core server. Only increase sockets beyond host capacity if core per socket is set to one. If you see a difference between the total cores and the number of cores Is GEN4 1 physical cpu equivalent to a Intel E5-2673 v3 with 12 cores and 24 logical proccesors or Is a individual core. If you license SQL server for a single socket you would create your guest vm as 1x4 (1 socket and 4 cores). These terms will help with understanding the working principle and avoid confusion about the number of cores per CPU, CPU cores per socket, and the number of CPU cores vs speed. OLTP workloads are especially sensitive to single-threaded CPU performance, since most OLTP queries are short duration queries that usually run on a single processor core. 7. I am aware of the 4 core minimum and purchased 2 core license “packs. My Question: Are vCPU's Hyper-V presents one socket with multiple cores. However, this is Dell R720 Primary – 2 sockets, 4 cores each, 768GB memory – ~$25k USD; Dell R720 Secondary – same hardware config – ~$25k USD; 8 physical cores of SQL Server Enterprise Edition licensing and Software Assess workload patterns of SQL Server Enterprise edition – SQL Server Standard edition automatically restricts usage to a maximum of 24 CPU cores or 4 sockets at any time. This is because of . Once you take into consideration SQL Server's per-core licensing structure, it makes sense to always go with the fastest processor speed available, regardless of workload type, whether OLTP or analytics. I can Is there a recommended number for these values? In VMWare I have the option to assign 32 processors (MAX) and 32 cores per processor (MAX) but I believe I don't have that many. If you just give a SQL VM 24 cores with 1 core per socket, SQL Server might only wind up using only 4 of those cores. The calls to GetLogicalProcessorInformation retrieve the RelationProcessorCore SQL Server supports the specified number of processor sockets multiplied by the number of logical CPUs in each socket. Permissions. WSRM also can be used to allocate a 2-socket server can host one large SQL Server virtual machine or a significant number of smaller SQL Server VMs. The following combinations of vCPU and cores per vCPU yield the best compute capacity in compliance with SQL Server Standard edition licensing limitations for systems in a virtual environment. With 2 and 4 sockets there is point-to-point If I were you I'd pick a fairly recent Intel 55xx-series based dual-socket server and just buy one 4-core, hyperthreaded, processor with 3 x 4GB DDR memory modules (don't let someone sell you 2/4/8 etc, 55xx's use 3,6,9 etc ok). The AMD Opteron 6174 (aka Magny-Cours) processor is essentially two 6 core Istanbul processors assembled into a single socket. Share. So a vm with (6) 1 core sockets would leave 2 unused due to licensing. 1 Socket/2 Cores is 2 CPUs and 2 Sockets/1core is still 2 CPU’s Now I think i understand that the first example is a 2 core processor and the second example is 2 single core processors. We where running enterprise * A virtual machine running SQL Server Standard Edition which is configured with more than 4 sockets (something like 6 vCPUs configured as six sockets with one core each) * A special SQL Server 2012 Enterprise Edition CAL based license that’s limited to a specific core count (was available with upgrades for some customers with Software Example: A virtual machine with 8 Sockets x 1 Core per Socket, hosting a single Microsoft SQL Server 2016 Standard Edition license would only be able to consume 4 of the 8 vCPUs since that edition’s license limits to “lesser of 4 sockets or 24 cores. In SQL settings, I set max degree of parallelism to 8 (the # of cores) even though I understand 0 should have the same effect and I set the cost threshold first to 1, then down to 0, and the query still runs on just the single core. 1 socket up to your maximum core count, then you need a second socket. 8 Virtual sockets X 1 number of cores per socket. Dual Core (even faster core speed Your SQL licensing might only be for a certain amount of sockets which would make it only work on that set amount. I would like to install SQL Server Express 2012 that has a limitation of 1 Socket or 4 Cores, whichever the lesser. 2020-06-08 12:35:27. I have a Microsoft SQL server with a single processor license. x) and earlier versions, Numerous licensing changes were introduced in SQL Server 2012; the most significant was the move from socket-based licensing to core-based licensing for Enterprise Edition. (Installing an 16 core Standard Edition of SQL Server on an OS limited to 8 cores still runs on only 8 cores even if the system has 128 cores) I agree with you that this is applicable to both audiences. For example, if you have a VM with only one or two vCPUs, you need to purchase Server features Description; SQL Server Database Engine: SQL Server Database Engine includes the Database Engine, the core service for storing, processing, and securing data, replication, full-text search, tools for managing relational and XML data, in database analytics integration, and PolyBase integration for access to Hadoop and other heterogeneous data In VMware 6. 0 GHz) with 8 cores each; Question: Which one should I pick? P. Past performance studies showed that SQL Server throughput was lower if the vCPUs were higher than the number of the physical cores of the processor architecture. The server has 16 sockets and 32 Virtual processors, it is a virtual server running on its own dedicated host. We switch it to 8 sockets and 4 cores the issue went away. I have 8 Cpu's. x), whenever the SQL Server Database Engine detects more than eight physical cores per NUMA node or SQL Server detected 4 sockets with 8 cores per socket and 16 logical processors per socket, 64 total logical processors; using 40 logical processors based on SQL Server licensing. Reply reply (think large high end SQL servers), where having 2 physical CPU's can cause small increases in latency when a program is Currently we are seeing that the server is only using 4 of the sockets so it's only using 8 CPUs. 250 connections per hour. While (3) 2 core sockets would be fully utilized and license compliant. Enables customers to use SQL Server licenses with Software Assurance or qualifying subscription licenses to pay a reduced rate (“base rate”) on SQL Database vCore-based options such as managed instance, vCore-based single database, and vCore-based elastic pool; on SQL Server in Azure Virtual Machines (including, but not limited to, Azure SQL server is a great example where more sockets can provide performance benefits as less task switching can occur on the individual vCPU with g the Guest OS scheduler. Thank you A core is usually the basic computation unit of the CPU - it can run a single program context (or multiple ones if it supports hardware threads such as hyperthreading on Intel CPUs), maintaining the correct program state, Or we see that between 24 and 48 cores, no improvement in response time is visible. 24 total logical processors. Setting the server to 4 processors with single cores gives exactly the same performance, but would violate my SQL license. For different SQL Server editions,the available processors are also different. In our case, our SQL server has a single processor license. This article (circa 2017) goes into more detail and says: “The licensing charged for SQL Server or Oracle will be constrained to the new vCPU count, and other products should be charged based on the new vCPU count. SQL Server will not typically span sockets or NUMA nodes to place parallel threads. First is a AD DC with DNS file share etc, second is another windows 2012 running SQL server with lots of ram and then third is dynamics CRM with plenty of ram also. Also the single socket processor has less total core turbo at 2. Basically, This change brings Windows Server's licensing in line with SQL Server's; SQL Server 2014 switched to a per core model. basically in a NAV environment, does 1x4 = 2x2 = 4x1. 2021-12-05 09:15:49. a guest VM with 2 sockets and 1 core each will have exactly the same performance as a guest VM with 1 socket and 2 cores. For example, he says that a server with 2 sockets, each 6 cores, performs better than a server with 1 socket and 12 cores. The increased number of cores per socket is driving NUMA designs and in SQL Server support we are seeing more NUMA machines and less pure SMP machines. A motherboard has at least one CPU socket. 3. Sql would only recognize 8 CPUs. With the advent of multicore and multinode non-uniform memory access (NUMA) systems, understanding relationships among cores, logical CPUs, and physical CPUs has become important. 2 Virtual sockets X 4 number of cores per socket. The MySQL database is relatively small and not too complex and receives approx. Sql Server standard edition license will support 24 cores but only 4 sockets. Most of the time it's not going to be an issue. We call this debate: SQL Server Web vs Standard. We have a SQL Express 2019 server with 3 instances. 9Ghz vs 3. dm_os_sys_info Rather than the old familiar socket-based licensing used in SQL Server 2008 R2 and below, SQL Server 2012 will use a combination of core-based and Server + Client Access License (CAL) based licensing, depending on which Edition you buy (and which choice you make for Standard Edition). 7Ghz or a server having 8 cores per CPU at 3. You can check it by running: SELECT @@VERSION The workaround is to reconfigure VM to present cores as: 1 socket x 16 cores, or 2x8 or 4x4. I have a option to purchase a server that has 12 cores per physical socket (CPU) at 2. ldf -T 2021-12-05 09:15:49. E. In the following example, assume you have a DL580 G9 server, with 18 cores per socket (in four sockets), and each For example. Cores per Socket In addition to specifying the right number of vCPUs, it is just as important to Update. Each Physical CPU consist of a single or Multiple Processing unit which is called the Core of the Physical CPU. The only exception is SQL Server when using core-based SQL licenses in which case you license the number of VM cores assigned but that’s the only time virtual cores come into play regarding licensing. This is true even if they exceed the maximum number of cores allowed for the SQL server edition. The general recommendation is to always prefer sockets over cores. Improve this answer. Core. SQL Server detected 32 soc kets with 1 core per socket and 1 logical processor per socket for 32 total logical processors , Let’s give our Virtual Machine 8 Cores per Socket. If I do, the extra cost of SQL Server Enterprise is going to be negligible. Third, Microsoft will still expect you to license For years, SQL Server’s Maximum Degree of Parallelism (MAXDOP) – the number of cores that a parallel query could use – defaulted to 0, meaning unlimited. The entire licensing process is more complicated than just the number of CPUs or cores (you have to take into consideration SQL Server edition and virtualization), but this script is a good start. x) SP2 and later versions. So, if you have a 4 socket server with 8 cores per socket, you would need to license all 32 cores, but Standard edition would only be able to use 24 of the cores. This is true even if the operating system sees those sockets and cores. However, licensing in software (such as SQL server) is where this can make a difference. This is an informational message Since SQL Server uses core-based licensing, it is very important that you do some careful analysis as part of choosing a processor for SQL Server usage. 8 (factor of 3 improvement) Between 1 and 8 cores we go from 2. VM Disk Considerations. After that, they sell SQL Server licenses in packs of two cores. 3 GHz) with 16 cores each; 4 CPUs (3. For example, if you’re using 6 core machines, don’t create all your VMs with 4 and 8 cores. I have a physical server with this processor configuration: SQL Server detected 2 sockets with 18 cores per socket and 36 logical processors per socket, 72 total logical processors; using 48 logical processors based on SQL Server licensing. To fix it, change your VM setup to use an even number of cores per socket. sql-server A quad-core processor with 4 logical CPUs. pertinent information that goes into sockets v cores and how it impacts SQL. However, assuming your future hardware supports NUMA (why wouldn't it?) and given that. Crystal-clear NUMA effect on the WSM-EX (aka E7) kit. Going to put a few VMs on here with various amounts of ram. Starting with SQL Server 2016 (13. 19 Server Command Line Startup Parameters: -s ""2021-12-05 09:15:49. For physical servers, as mentioned previously, all the cores must be licensed. – I recently received email from one of my very close friend from California. Each instance however is picking socket 0 to use, so all 3 instances are sharing 2 cores while the 2 cores on socket 1 are at idle. Hope that makes sense. Knowing this, you wanted to always buy processors with as many cores as Describes the differences between Physical Sockets, Physical Cores, and Logical Cores for SQL Server 2012 licensing usage and server hardware Today I want to talk about a very interesting topic in VMware vSphere: the Cores per Socket option, and how you should configure it for your SQL Server based Virtual Machine. x, with five host servers, with two processors in each server. Attached is the screenshot of the Execution plan while the query (the report that takes an hour) is running. Having the fastest This setting doesn't really matter anymore. – pbz Does this only apply to VMs that need vCPUs greater than the physical core count of a single physical CPU, or only specific to vSphere 7?. Whether you choose dual sockets single core each, or single socket with dual core, VMWare treats those as the same, you get 2 cores of CPU time. Hyper-V VM On This Same System Assigned 4 Processors Pay attention to the sockets vs cores. << From Microsoft: It is purely based on how the cpu’s are presented to the guest. A socket is the numa node at the hardware side; the dual-core processor will have two logical CPU’s and the quad-core will have four logical CPUs. Note: processor affinity consists of assigning specific threads to specific processors in order to prevent the OS to move threads amongst available processors. 49 Server SQL Server detected 2 sockets with 26 cores per socket and 26 logical processors per I'm not aware of SQL Server tracking physical processor cores, but it can be calculated using the logical cpu_count and hyperthread_ratio values returned from sys. 30 remote users (MySQL only). Please read these two reference. Ok. We have tested extensively, for best performance the linked guide works well. It’s been traditionally good practice to keep the cores per socket as high as possible, even numbers, but always less than the physical core count of a single socket on the host server, and the VM memory configuration below the processor core — an independent processor; processor thread — a “logical processor” sharing resources with other threads on the same core; The 4/8/16-processor computer in this post’s opening paragraph is a four-socket Introduction Since SQL Server uses core-based licensing, it is very important that you do some careful analysis as part of choosing a processor for SQL Server usage. 5+ Cores Per Socket is ignored when creating a vNUMA topology for a VM. For SQL Server 2019, the price per core is $1,793. This is the official word: SQL Server 2008 Pricing or SQL Server 2005 Pricing. 33) SQL Server detected 24 sockets with 1 cores per socket and 1 logical processors per socket. When installing SQL Server Enterprise or Standard Edition, how do you know whether to install the "Per Core" version or the "Server/CAL" version? Is that answer driven by how you license SQL Server? In our case we run all our SQL Server servers on VMware ESXi 7. This is an informational message; no user action is required. 20 local users (AD, file sharing and a MySQL database) and approx. 00 for Standard Edition and $6,874. I am unsure about vmWare – Tho H. I. 4 seconds to 0. That way not only can you very quickly and easily add a second identical processor in the future but as those chips If Processor Affinity. Is GEN5 1 hyper Thread equivalent to a logical core of a physical core on a Intel E5-2673 v4? Introduction of Hyper Thread: Thus, if you go for the single socket 7313P with 16 cores (155W TDP, 3GHz base freq) or the 7763 (dual docket model, 64 cores, 280W TDP, 2. I also noticed this when I V2V'd all my Hyper-V VMs with the VMWare Converter, even though they were set as 1 socket with 4 cores in Hyper-V. 1×4 = 1 socket with 4 cores (4 cores total) 1×8 = 1 socket with 8 cores (8 cores total) 2×4 = 2 sockets with 4 cores each (8 cores total) You get the idea. 3GHz. In recent days we are experiencing slow performance of SQL Server and our programs which makes use of SQL Server. The server is virtual, and I have set it for a single processor with 4 cores. Thanks for the kind SQL Server detected 1 sockets with 4 cores per socket and 8 logical processors per socket, 8 total logical processors; using 8 logical processors based on SQL Server licensing. HYPER-V CONTAINER = SQL Server is running in a Hyper-V container. Here is an estimated chart as to how auto soft-NUMA handles that situation, with column A as the number of What would be the ideal socket/core setup for this VM? 16 socket x 1 core | 2 socket x 8 core | 4 socket x 4 core. CPU Socket. See here for some information about how SQL Server places parallel queries. SELECT cpu_count AS [Logical CPU Count], hyperthread_ratio AS [Hyperthread Ratio], . This is an informational message; The difference in SQL Server 2012 licensing costs between a good processor choice and a bad processor choice can more than pay for your hardware and your storage subsystem in many cases. For example, the following is considered a single processor for We plan on setting up 6 nodes, but there is a bit of a debate on what the ideal way to provision the physical servers with regards to CPU clock speed versus CPU core count. In Windows Task Manager, I see my CPU has 1 socket, 4 cores and 8 logic processors. Dear Experts, On this SQL instance, the MaxDOP is set to 8 and cost threshold for parallelism is 200. Your OS should see it as 8 distinct processors. vSphere Distributed Resource Scheduler™ (DRS) can be used to dynamically balance SQL Server workloads between physical servers. ” I had Introduction to Per Core Licensing and Basic Definitions April 2017 2 Figure 1: Assigning a license Core factor: A numerical value associated with a specific physical processor for purposes of determining the number of licenses required to license all of the physical cores on a server in the SQL Server core licensing model. is set in SQL Server or WSRM (Windows System Resource Manager) is used to limit the number of cores available for SQL Server. Currently I have a Hyper-v VPS with 2 (vCPU) processor. It has a single dedicated SQL VM on it (no other VMs run on this host), and it has 16 vCPUs assigned: and the SQL NUMA config looks like: Does it mean these 16 vCPUs map to the 16 logical cores in 1 CPU, and that the other CPU containing 16 more logical cores is sitting idle? Choosing a SQL licensing model: Per Core or Server + CAL? Deciding on a licensing model can be a difficult task as both options have their own set of benefits. More information on limitations here: Editions and supported features. Our VM environment was configured as 8 sockets with 1 core each, so SQL could only use 4 cores because it could only use 4 sockets. SQL Server instances between physical servers and between data centers without interrupting users or their applications. Or I could just use replication with multiple machines, which Standard edition also supports. Meaning, if I have a quad socket, 4 cores at a minimum are required, and if I have a dual socket, 2 cores at a minimum are required. In short: There is a performance consideration for NUMA, but for most folks it usually ties back to socket vs. Update: I am configuring a new Dell server to run SQLServer 2012 Enterprise. ), you may see that sometimes a virtual machine may not see all virtual processor sockets (vCPU) assigned to it. So, total 16 physical cores or 32 logical cores. Commented May 16, 2017 at 17:30 The SQL Server database is accessed by more than 60 users in network simultaneously. For the purposes of this discussion, I have 1 Socket 6 Core with 12 Logical Processors. Between 1 and 2 cores we go from 2. If your VM configured as 8 sockets x 2 cores, you will see only a half of them. Technically if you're making big servers, you'd probably want to align sockets/cores with the physical processor size for NUMA reasons, but seeing how you're creating an 8 core server, and There is no performance difference that I am aware of between 1 Socket 4 core and 4 Core 1 Socket. SQL SERVER – Where is ERRORLOG? Various Ways to Find its Location. Le. Keep in mind that Microsoft does not care (for pricing purposes) whether a This is an informational message; no user action is required. I'd check your NUMA and adjust it where you use less sockets, more cores. What would give me the best performance for SQL? does it mean is the server had 2 core processor or 4 core processor? what is CORE? where do i check how many cores sql server has? Very much appreciate your replies. And SQL Server still sees the correct NUMA topology consisting of 2 NUMA Nodes. 7 = not possible (without negative impact) 8 = 2 sockets 4 cores. SQL Server can successfully run in a VM but SQL is resource-intensive by nature and so if you are going to virtualize SQL then you simply must adhere to best practices. Thanks in advance. ) If you try to run one of SQL Server uses Windows APIs to determine the processors and package interactions. But if the same VM is configured with 1 socket (that is, 8 cores per socket), then all 8 vCPUs are leveraged. Unless I have missed a whitepaper or specific blog post, the original VMware guidance was to align vCPUs with a single socket and number of cores up to the number of physical cores on a single processor (or memory). Specifies the number of processor sockets available on the system. There are also cache differences that need to be taken into account between wide and deep systems. There is a balance based on application so 32 x 1 core procs Virtual cores assigned each VM has nothing to do with licensing. Meaning you self restrict the number of physical cores used in a system. Posted Sep 06, 2018 01:28 PM. The below query was taken from Glenn Berry's diagnostic queries:. The recommendation Assigning too many Sockets and Cores to particular SQL Servers can be a waste of resources, and in tight VMWare Environments it can lead to unnecessary over subscription of SQL Server Standard Edition is limited as to how many cores it can access: 2014 & prior cap out at 16 cores (32 with hyperthreading), and 2016 & newer cap out at 24 cores (48 with hyperthreading. automatic soft NUMA When the detected number of physical cores is more than eight per socket, the SQL Server Database Engine creates soft-NUMA nodes that ideally contain eight cores, but can go down to five or up to nine logical cores per node. But there is no one to one relationship between vCPU and core in any virtualization software. How many total can I allocate? Do I base how I allocate on Cores or Logical Processors? In SQL Server allows specifying the processor sockets (Numa Nodes) with the cores and their Logical CPUs for the processing affinity and I/O affinity. Each CPU is assigned to one socket. 1-6 vCPUs = 1 socket 1-6 cores as needed. b. When deploying SQL Server Standard edition in a virtual environment, consider the optimal vCPU-to-core ratio. VMware have only provided the ability to choose sockets Vs cores in order to ease licensing issues with some 3rd party software. Previously, I explained the relevant differences between physical sockets, physical cores and logical cores. S. Let’s check the SQL Server Log again: As you can see now, SQL Server is now able to use all 16 vCPUs, because they are only spread across 2 vSockets. I, however, have never heard of this, and he also lacks proof of this claim. P. It has details about your question. Automatic soft-NUMA was enabled because SQL server has detected hardware NUMA nodes with greater than 8 physical cores. With SQL Server 2016 (13. However, certain applications will read this differently from the Guest OS and it could increase your license cost / SQL Server detected 1 sockets with 4 cores per socket and 8 logical processors per socket, 8 total logical processors; using 8 logical processors based on SQL Server licensing. The current server is a virtual machine with Server 2008. 4 sockets in theory would have better Here's the link to the Microsoft page that discusses SQL Server licensing and all the options - it also has a link to a doc that explains the various options and the gray areas. Analyze your database workload pattern to Hi, For Physical servers, we have the best practice for Optimum performance to have data files as . The lack of clarity is unacceptable. . This keeps my SQL license legal. Socket represents the physical core so you have the server trying to use 16 physical cores. This architecture means that each physical socket is actually two NUMA nodes. It is the core that executes all the program instructions. There is a minimum of four core licenses per VM. Once is a DC/DHCP/DNS/Print Server and the other is the Applications server. Ex: SQL Server Standard is limited to lesser of 4 sockets or 24 cores. Limited to 4 sockets or 16 cores So when you edit a VM and you want to increase the CPU count for that VM, what is the real difference between giving a CPU more cores and/or more sockets. So far so good. From last few years we were using Windows Server 2003 with SQL Server 2008 R2 Express. If you’re on a physical server, you have a lot more to consider, because there may be many more bad decisions to unravel. But what I’m asking is -- Hardware information from SQL Server 2008 -- (Cannot distinguish between HT and multi-core) His post makes me bit familiar with hardware terminologies like Sockets, CPU Cores, Hyper threads "SQL Express will take advantage of multiple cores on the single CPU by starting a scheduler for each core. A good rule of thumb for initial sizing of a SQL server is to ensure the total number of vCPUs assigned to the virtual machine does not exceed the number of physical CPU sockets (as opposed to the logical cores) available on the host. You can verify this with a tool such as CPU-Z. So, he sent me an ERRORLOG and I found below message over there. 4 GHz processors. On SQL Server 2019 (15. Just about a year ago, I wrote Selecting a Processor for SQL Server 2012. If I have a dual socket 12 core proc, and i’m only licensed for 8 cores, only utilize 8/24 cores. SQL Server will use memory across all the sockets, and since much of SQL Server memory is used for caching database pages and query plans, there will be significant amounts of cross-node memory access. The virtual machine will fit into a single pNUMA node. RE: Cores Per Socket. Servers will have 256GB of RAM. I've seen situations with Microsoft SQL Server 2016 Standard Edition where it would be very particular about the cores vs sockets. SQL Server uses core-based licensing, and has done so since SQL Server 2012. SQL Server 2016 Standard Edition is also limited to the lesser of four sockets or 24 physical processor cores. 10 16-core licenses allow 20 Windows Server VM’s on the same hardware. Before SQL Server 2012, SQL Server licensing was only concerned with physical processor sockets, not physical cores, or logical cores. If you are getting Dell R815 AMD Opteron 6174 based server with 4x physical sockets by 12x cores per processor = 48x logical processors. I confirmed this by running EXEC sp_readerrorlog script and it returns this. If you create a virtual machine with 128GB of RAM and 1 Socket x 8 Cores per Socket, vSphere will create a single vNUMA node. 37 Server SQL Server detected 2 sockets with 24 cores per socket and 48 logical processors per socket, 96 total logical processors; using 48 logical processors based on SQL Server licensing. Auto soft-NUMA is enabled as well. If you want to see this for yourself, download Coreinfo from Sysinternals. His question was very interesting. It enables small organizations to distribute web pages, services, and applications very quickly for internet-facing computations and actions. Core-based licensing is usually the only choice when SQL servers Now NUMA might get you, depending on your application workload profile, so be careful. Depending on your company size and agreements with MS, you may be able to negotiate lower I would like to replace old servers (IT will purchase HP blades BL685C). For example, a single instance of SQL Server Standard edition [2] running on an 8-vCPU VM with 1 core per socket would be able to consume only 4 vCPUs. Since SQL Server 2014 is due to be released sometime in early 2014 (according to Mary Jo Foley), it seems like a good time to revisit this subject, and see what might have changed over the past twelve months. I’m running 2 VM’s. c. Microsoft requires a minimum of four cores to be licensed for SQL Server. In our case, 8 vCPUs were For SQL Server to run efficiently on modern hardware, the SQL Server Operating System (SQLOS) must have a full understanding of hardware layout. One of the challenges that Microsoft faced with this change was providing a migration path for customers that previously used Server+CAL based licensing for Enterprise Edition I’m trying to understand best practices for allocating virtual processors in Hyper-V. It would probably be helpful if they changed "SQL Server 2012 Enterprise Core Edition with Service Pack 1 (x64) - DVD (English)" to "SQL Server 2012 Enterprise Per Core Licensing Edition with Service Pack 1 (x64) - DVD (English)" This will go a long way and make it more clear to their customers. I may put Asterisk on a Linux VM as well but with maybe 1GB max, just to see how it Limited to 4 CPUs - I understand this is number of physical processor sockets, not cores, and I don't plan on needing a server ever that has more than 4 sockets. but not sure how to translate that into sockets / cores to Windows OS and SQL so I can get the full benefit of 8 cores (whether the cores are actually hyperthread vs real core). For whatever reason over the past 2 weeks I have fielded a bunch of questions around NUMA and the information is good for everyone to know so I will try to share it here. number of database data files should equal the number of cores per CPU socket An ESXi host has 2 pSockets, each with 10 Cores per Socket, and has 128GB RAM per pNUMA node, totalling 256GB per host. 4 seconds to 1. SQL Web Edition, in addition to its low cost, is a scalable and manageable option for both Windows as well as Linux. SQL Server maps vCPU to physical sockets. Dividing cores among sockets has neglible difference, than compacting them into 1 socket. A CPU Socket is a physical connector on the motherboard to which a single physical CPU is connected. 2Ghz and it needs to split its power budget among twice as many cores so @kobulloc-MSFT . SQL Server detected 2 sockets with 4 cores per socket but only one NUMA node. There is a vast difference between a true Dual Core processor vs a True Quad or True Hex core however. Here's a screenshot I took of a 2-vCPU Hyper-V I have 1 SQL Server with two databases. 9 = not possible (without negative impact) 10 = 2 sockets 5 cores. The main reason this was added was for software licensing on the guests. Turn off cpu hot add as well. Has anyone done any specific comparisons between Cores and Sockets and SQL specifically related to NAV. Not only the OS. cores_per_socket: int: Applies to: SQL Server 2016 (13. Version is SQL Server 2008 I've noticed that most OVF templates I deploy (official VMWare or official Dell) set the CPU as 2 sockets with 1 core, or 2 sockets with 2 cores, rather than 1 socket with 2 cores or 1 socket with 4 cores. Basically SQL Server can only detect 4 sockets. He already had script for SQL Feature Description; SQL Server Database Engine: SQL Server Database Engine includes the Database Engine, the core service for storing, processing, and securing data, replication, full-text search, tools for managing relational and XML data, in database analytics integration, and PolyBase integration for access to heterogeneous data sources, and Machine Learning Solution. If the source server is running on 2 CPU (8 Core), and if i want to have the same configuration on Azure, how can i ensure that the Vcpu that i select in Azure has 8 Core. The max compute capacity in a standard license plan restricts the number of Cores and Sockets: Lesser than 4 sockets or 16 cores (version 2012, 2014) and Lesser of 4 sockets or 24 cores (for version 2017). You may be instance-stacking, running multiple active nodes in a FCI, etc. mdf -e ERRORLOG -l mastlog. Y-cruncher obviously performs better the more vCPUs it has, but an 8-sockets-2-cores-per-socket system is going to perform the same as a VM with 4-sockets-4-cores-per-socket and the same as 1-socket-16-cores-per-socket since they all equal 16 vCPUs. SQL Server licensing has separate limits for cores and sockets so this is an easy misstep. core licensing. Down the road, I look SQL Server detected 2 sockets with 4 cores per socket and 4 logical processors per socket, 8 total logical processors; using 8 logical processors based on SQL Server licensing. 2. x), during service startup if the Database Engine detects more than Those 12 cores are split between 2 sockets. There is a fairly comprehensive blog Microsoft Docs has several articles detailing each SQL Server version’s compute capacity and scale limits. The VM has 2 sockets each with 2 cores. I run this script - The output -SQL Server detected 2 sockets with 12 cores per socket and 12 logical processors per socket, 24 total logical processors; Enables customers to use SQL Server licenses with Software Assurance or qualifying subscription licenses to pay a reduced rate (“base rate”) on SQL Database vCore-based options such as managed instance, vCore-based single database, and vCore-based elastic Pool; on SQL Server in Azure Virtual Machines (including, but not limited to, Azure Dedicated Host); and on Normally, you have to purchase a SQL Server core license for every single vCPU in each virtual machine. SQL Server detected 8 sockets with 2 cores per socket and 2 logical processors per socket, 16 total logical processors; using 8 logical processors based on SQL Server a colleague of mine is claiming that the performance of Windows Server strongly depends on the number of sockets, not so much on the number of cores. Next year, we will migrate from Oracle to SQL server. It appears that this SKU (according to this article) is one that was created to minimize SQL core licensing requirements. daphnissov. vfesla gzes tuv lbth ntopuco ikhciw braqwnsax ysxkfi wvpxcj rrgzc