TFS Scalability

re: TFS Scalability

Brian Harry MS — Fri, 23 Apr 2010 11:02:57 GMT

10,000 users is a very large number on a single server. It will depend a great deal on what those users do.

Are they all developers or a lot of them less frequent participants in the development process?

How many separate projects are there?

How large are the projects that are being worked on? How many files, on average, is a developer enlisted in?

If you have only a few very large projects then I would recommend very large hardware (24 or 32 core data tier with 64 or 128GB of RAM and a SAN with a few hundred spindles).

If you have a large number of smaller projects, then I would use TFS's scale out ability and have multiple lower capabilty application tier and data tier machines.

If you can give me a bit more info I can help you figure out what would be best.

Brian

re: TFS Scalability

Srinivas Prasad — Fri, 23 Apr 2010 06:48:08 GMT

Hi Brian,

I have read through most of your blogs and they are very useful stuff.

I'm currently working on a hardware sizing for a customer, where they are looking at having close to 10,000 users connecting to it. Hence i was looking for help from you in terms of what kind of hardware(processor, memory...) we should plan for?

re: TFS Scalability

Brian Harry MS — Sun, 07 Sep 2008 15:00:25 GMT

We haven't changed the basic guidance. Essentially we are just "playing it safe". The new feature in SP1 only downloads meta-data for projects that users are authorized to see. If you manage your server in a way that users only have access to a small subset of projects, you can succeed with more projects on your server. I have heard of TFS 2008 SP1 installations working successfully with about 1,000 projects per server without suffering significant performance issues.

Brian

re: TFS Scalability

Anand — Fri, 05 Sep 2008 18:52:46 GMT

What about number of Projects. 2005 version had around 250 projects recommendation for MSF-CMMI and around 500 for Agile. Can you comment on improvement along the number of projects? I appreciate the input. Thanks.

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re: TFS Scalability

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DEV - Scalabilitate TFS

Weblogul lui Zoli — Fri, 09 Feb 2007 16:45:43 GMT

Vesti bune pentru Visual Studio 2005 Team Foundation Server: vom actualiza recomandarea pentru numarul

re: TFS Scalability

Brian Harry MS — Tue, 20 Dec 2005 15:25:18 GMT

Yes, the bottleneck (today) is the datatier CPU. More CPU will mean more supported users. We are in the process of testing on an 8 proc and we'll see what results that yields.

re: TFS Scalability

Lee — Mon, 19 Dec 2005 19:55:07 GMT

I think it's very good news that the data server is CPU bound.

In fact Intel is now releasing *dual-core* processors at 3.46Ghz, which would surely double your CPU power.

If the processing power on the data server could be doubled, wouldn't this have a big impact on your scalability limit?

re: TFS Scalability

Brian Harry MS — Sat, 17 Dec 2005 03:55:51 GMT

This was done on an internal build and there are quite a few perf improvements since the Beta 3 refresh. It's pretty close to the Dec CTP (although remember that's not a go-live build). We'll have a release candidate early next year that will have all the tuning in it.

The DT is the bottle neck because we do so much of the work in TSQL. We don't cache a ton in AT. Probably the most expensive thing that we do on the AT is generate tickets for download (this is an important part of enabling the proxy). I think in future versions we'll be looking at how we can better balance the load between them.

Brian