Disable NoGCRegion on Linux consumption. (#8687) (#8688)

safihamid · web-flow · commit c66e9946a742 · 2022-08-31T11:49:13.000-07:00
diff --git a/src/WebJobs.Script.WebHost/Middleware/ClrOptimizationMiddleware.cs b/src/WebJobs.Script.WebHost/Middleware/ClrOptimizationMiddleware.cs
@@ -31,7 +31,7 @@ public ClrOptimizationMiddleware(RequestDelegate next, IScriptWebHostEnvironment
             _environment = environment;
             _logger = logger;
             _next = next;
-            _invoke = InvokeClrOptimizationCheck;
+            _invoke = _environment.IsAnyLinuxConsumption() ? next : InvokeClrOptimizationCheck;
         }
 
         public Task Invoke(HttpContext context)
@@ -56,7 +56,7 @@ private void StartStopGCAsBestEffort()
             try
             {
                 // optimization not intended for single core VMs
-                if (_webHostEnvironment.InStandbyMode && _environment.GetEffectiveCoresCount() > 1)
+                if (_webHostEnvironment.InStandbyMode && _environment.GetEffectiveCoresCount() > 1 && !_environment.IsAnyLinuxConsumption())
                 {
                     // If in placeholder mode and already in NoGCRegion, let's end it then start NoGCRegion again.
                     // This may happen if there are multiple warmup calls(few minutes apart) during placeholder mode and before specialization.

Original file line number	Diff line number	Diff line change
`@@ -31,7 +31,7 @@ public ClrOptimizationMiddleware(RequestDelegate next, IScriptWebHostEnvironment`
`31`	`31`	`_environment = environment;`
`32`	`32`	`_logger = logger;`
`33`	`33`	`_next = next;`
`34`		`- _invoke = InvokeClrOptimizationCheck;`
	`34`	`+ _invoke = _environment.IsAnyLinuxConsumption() ? next : InvokeClrOptimizationCheck;`
`35`	`35`	`}`
`36`	`36`
`37`	`37`	`public Task Invoke(HttpContext context)`
`@@ -56,7 +56,7 @@ private void StartStopGCAsBestEffort()`
`56`	`56`	`try`
`57`	`57`	`{`
`58`	`58`	`// optimization not intended for single core VMs`
`59`		`- if (_webHostEnvironment.InStandbyMode && _environment.GetEffectiveCoresCount() > 1)`
	`59`	`+ if (_webHostEnvironment.InStandbyMode && _environment.GetEffectiveCoresCount() > 1 && !_environment.IsAnyLinuxConsumption())`
`60`	`60`	`{`
`61`	`61`	`// If in placeholder mode and already in NoGCRegion, let's end it then start NoGCRegion again.`
`62`	`62`	`// This may happen if there are multiple warmup calls(few minutes apart) during placeholder mode and before specialization.`