In practical terms, it is safe to estimate that the Windows Server platforms can allocate approximately 4, sockets for every Mb of physical memory. The server can handle 65, sockets per single IP address. So the quantity can be easily extended by adding additional network interfaces to a server. A socket is a file for processes to exchange data. A server socket listens on a single port.
Multiple listening TCP sockets, all bound to the same port, can co-exist, provided they are all bound to different local IP addresses. For example, If you just want to host the data of 1 million users, you just need to upload it to your server and it will just require 1 server. The total number of sockets that can be created using the SocketTools controls or libraries varies, based on the version of Windows and the amount of physical memory that is available.
It is also important to distinguish between the number of sockets that can be allocated by a client application and the number of inbound connections a server can accept. By default, client applications will be automatically assigned local port numbers between and when a connection is made.
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Is this useful stuff? Will this save you any time or even help you start off your own CMDB? We'd love to hear from you! Update the version of xsos you have on that lab system. It's insaaaaaaaanely out of date. See: Yum repo available for xsos -- a tool for sysadmins. Amusingly, I was having to do this just the other day. Had a dual quad-core server that was showing up as 16 CPUs because of hyperthreading.
Speaking of which: when using performance tools that show CPU data and those tools aren't terribly MP-aware, what's the best way to normalize your data? I mean, a 16vCPU system that's actually only a dual quad-core system isn't technically going to yield 16 CPU's worth of output - at least not under all workloads.
Assuming I understand you, the answer is going to depend on the tool you're using, right? Specific ad hoc use-case was trying to get finer-grained CPU and memory utilization patterns than what sar provides by using the various ps tools.
Thanks for this article and all the comments. All your options are explained in the solution Difference between physical cpus, cpu cores, and logical cpus.
Only populated and enabled processors in their system sockets are counted as part of requirements and compliance for subscriptions. So for example, if you have a four socket system, but only have two processors installed, configured, and enabled, you only need a subscription for two sockets. It would be nice now to tie this to how the entitlements work on systems.
For example, when you need a up to 4 sockets as opposed to 1 socket for RHEL subscriptions. You might want to check the output of 'subscription-manager facts --list' to see how subscription manager sees it.
Anyone have thoughts on the best way to verify the number of "enabled" cores on a blade system? I ran into a discrepancy between output from lscpu and dmidecode that has me questioning what is actually enabled.
From lscpu I see:. Curious what thoughts any of you may have on this. Apologies if this isn't the right place to ask this. I can remove if needed.
I am confident in the number of populated sockets.
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