Reduce allocations when Activity is enabled #11020
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- Remove string allocations caused by DiagnosticSource.Stop/StartActivity - Pass the HttpContext directly as the object for StartActivity and StopActivity to avoid the anonymous object allocation. - Though it's a bit ugly, added an HttpContext property to DefaultHttpContext to avoid breaking back-compat (which had to do reflection to get the HttpContext property anyways)
davidfowl
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Tratcher,
analogrelay and
jkotalik
as code owners
Tratcher
reviewed
Jun 9, 2019
- Mark HttpContext field as editable browsable never - Ran code check
watfordgnf
reviewed
Jun 10, 2019
src/Hosting/Hosting/src/Internal/HostingApplicationDiagnostics.cs
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Co-Authored-By: Christopher Watford <[email protected]>
Tratcher
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Jun 10, 2019
ghost
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|
cc @lmolkova @SergeyKanzhelev as an FYI, this should be non breaking though. |
lmolkova
reviewed
Jun 14, 2019
| { | ||
| hasDiagnosticListener = true; | ||
| _diagnosticListener.StartActivity(activity, new { HttpContext = httpContext }); | ||
| StartActivity(activity, httpContext); |
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I like this and we may be able to update listener in time for 3.0 to support it. But it is breaking (i.e. there is no HttpContext property on HttpContext type), everyone who attempts to get it will fail.
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ooops, you've added property on HttpConetxt 😂
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HttpContext.HttpContext 😄
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Contributes to #9594
Before:
After:
