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Add trace flag 876 #151

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BrentOzar opened this issue Sep 25, 2018 · 1 comment

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@BrentOzar
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commented Sep 25, 2018

From Slava Oks' tweet this week on SQL Server 2019:

https://twitter.com/slava_oks/status/1044257034361757696

With every new #SQLServer announcement it feels like Christmas time of the year, presents for everyone, @NikoNeugebauer with #SQLServer2019 CTP 2.0, could you please try trace flag -T876 instead of -T834 for some of key CS scenarios and check performance?

https://twitter.com/slava_oks/status/1044413511466512384

No -T876 is different beast... it turns 8k page allocations for CS segments into 2MB instead. -T834 does exactly that as well as it pre-commits the entire sql memory with large pages which many workloads don’t really need.

@ktaranov ktaranov self-assigned this Sep 25, 2018

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commented Sep 25, 2018

@BrentOzar Great thanks for this trace flag,
added via 7fc8ce4

Waiting for Niko answer to add more information and use cases.

@ktaranov ktaranov closed this Jan 24, 2019

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