We're currently investigating a performance issue (high CPU usage on the server) and most of the call stacks are showing that we are in the Editor code when this is happening. Have you seen anything like this?
00000000`6cddbbb8 00000000`7785ba32 ntdll!ZwWaitForMultipleObjects+0xa [o:\rtm.obj.amd64fre\base\ntdll\daytona\objfre\amd64\usrstubs.asm @ 876]
8 00000000`6cddbbc0 000007fe`f8e01c89 kernel32!WaitForMultipleObjectsEx+0x10b [d:\rtm\base\win32\client\synch.c @ 1810]
110 00000000`6cddbcd0 000007fe`f8e072c5 mscorwks!GetCLRFunction+0x8475
a0 00000000`6cddbd70 000007fe`f8f12fe5 mscorwks!GetCLRFunction+0xdab1
60 00000000`6cddbdd0 000007fe`f8f33248 mscorwks!GetMetaDataInternalInterface+0x44a5
100 00000000`6cddbed0 000007fe`f8e5a896 mscorwks!GetMetaDataInternalInterface+0x24708
70 00000000`6cddbf40 000007fe`f8de4b5d mscorwks!CreateAssemblyNameObject+0x97d6
b0 00000000`6cddbff0 000007fe`f8f4ac92 mscorwks+0xf4b5d
d0 00000000`6cddc0c0 000007fe`f936366d mscorwks!GetMetaDataInternalInterfaceFromPublic+0x5716
30 00000000`6cddc0f0 000007fe`f425b149 mscorwks!PreBindAssembly+0x3a1ad
260 00000000`6cddc350 000007fe`f425c6f6 mscorlib_ni!System.RuntimeType+RuntimeTypeCache+MemberInfoCache`1[[System.__Canon, mscorlib]].Insert(System.Reflection.CerArrayList`1<System.__Canon> ByRef, System.String, System.Reflection.MemberListType)+0x59
90 00000000`6cddc3e0 000007fe`f42735ae mscorlib_ni!System.RuntimeType+RuntimeTypeCache+MemberInfoCache`1[[System.__Canon, mscorlib]].AddMethod(System.RuntimeTypeHandle, System.RuntimeMethodHandle, CacheType)+0x1d6
80 00000000`6cddc460 000007fe`f427296c mscorlib_ni!System.RuntimeType.GetMethodBase(System.RuntimeTypeHandle, System.RuntimeMethodHandle)+0x24e
90 00000000`6cddc4f0 000007fe`f42727f6 mscorlib_ni!System.Reflection.CustomAttributeData..ctor(System.Reflection.Module, System.Reflection.CustomAttributeRecord)+0x13c
2c0 00000000`6cddc7b0 000007fe`f42726a9 mscorlib_ni!System.Reflection.CustomAttributeData.GetCustomAttributes(System.Reflection.Module, Int32)+0xb6
a0 00000000`6cddc850 000007fe`f427fcd6 mscorlib_ni!System.Reflection.CustomAttributeData.GetCustomAttributes(System.Reflection.Assembly)+0x79
60 00000000`6cddc8b0 000007fe`f427fc1d mscorlib_ni!System.Resources.ResourceManager.GetSatelliteContractVersion(System.Reflection.Assembly)+0x66
c0 00000000`6cddc970 000007fe`f42719ab mscorlib_ni!System.Resources.ResourceManager.GetSatelliteAssembly(System.Globalization.CultureInfo)+0x3d
60 00000000`6cddc9d0 000007fe`f4277556 mscorlib_ni!System.Resources.ResourceManager.InternalGetResourceSet(System.Globalization.CultureInfo, Boolean, Boolean)+0x1ab
b0 00000000`6cddca80 000007ff`00908425 mscorlib_ni!System.Resources.ResourceManager.GetString(System.String, System.Globalization.CultureInfo)+0x36
50 00000000`6cddcad0 000007ff`009083ba Telerik_Web_UI!Telerik.Web.LocalizationProvider+EmbeddedResourceLocator.GetString(System.String)+0x35
40 00000000`6cddcb10 000007ff`00906944 Telerik_Web_UI!Telerik.Web.LocalizationStrings.GetString(System.String)+0x6a
40 00000000`6cddcb50 000007ff`0090479e Telerik_Web_UI!Telerik.Web.UI.RadEditor.FillDefaultDialogDefinitions()+0xb4
630 00000000`6cddd180 000007fe`f062d18c Telerik_Web_UI!Telerik.Web.UI.RadEditor.OnPreRender(System.EventArgs)+0x2e
30 00000000`6cddd1b0 000007fe`f062d200 System_Web_ni!System.Web.UI.Control.PreRenderRecursiveInternal()+0x6c
...
Version 2008.1.415.35 of Telerik.Web.UI.
00000000`6cddbbb8 00000000`7785ba32 ntdll!ZwWaitForMultipleObjects+0xa [o:\rtm.obj.amd64fre\base\ntdll\daytona\objfre\amd64\usrstubs.asm @ 876]
8 00000000`6cddbbc0 000007fe`f8e01c89 kernel32!WaitForMultipleObjectsEx+0x10b [d:\rtm\base\win32\client\synch.c @ 1810]
110 00000000`6cddbcd0 000007fe`f8e072c5 mscorwks!GetCLRFunction+0x8475
a0 00000000`6cddbd70 000007fe`f8f12fe5 mscorwks!GetCLRFunction+0xdab1
60 00000000`6cddbdd0 000007fe`f8f33248 mscorwks!GetMetaDataInternalInterface+0x44a5
100 00000000`6cddbed0 000007fe`f8e5a896 mscorwks!GetMetaDataInternalInterface+0x24708
70 00000000`6cddbf40 000007fe`f8de4b5d mscorwks!CreateAssemblyNameObject+0x97d6
b0 00000000`6cddbff0 000007fe`f8f4ac92 mscorwks+0xf4b5d
d0 00000000`6cddc0c0 000007fe`f936366d mscorwks!GetMetaDataInternalInterfaceFromPublic+0x5716
30 00000000`6cddc0f0 000007fe`f425b149 mscorwks!PreBindAssembly+0x3a1ad
260 00000000`6cddc350 000007fe`f425c6f6 mscorlib_ni!System.RuntimeType+RuntimeTypeCache+MemberInfoCache`1[[System.__Canon, mscorlib]].Insert(System.Reflection.CerArrayList`1<System.__Canon> ByRef, System.String, System.Reflection.MemberListType)+0x59
90 00000000`6cddc3e0 000007fe`f42735ae mscorlib_ni!System.RuntimeType+RuntimeTypeCache+MemberInfoCache`1[[System.__Canon, mscorlib]].AddMethod(System.RuntimeTypeHandle, System.RuntimeMethodHandle, CacheType)+0x1d6
80 00000000`6cddc460 000007fe`f427296c mscorlib_ni!System.RuntimeType.GetMethodBase(System.RuntimeTypeHandle, System.RuntimeMethodHandle)+0x24e
90 00000000`6cddc4f0 000007fe`f42727f6 mscorlib_ni!System.Reflection.CustomAttributeData..ctor(System.Reflection.Module, System.Reflection.CustomAttributeRecord)+0x13c
2c0 00000000`6cddc7b0 000007fe`f42726a9 mscorlib_ni!System.Reflection.CustomAttributeData.GetCustomAttributes(System.Reflection.Module, Int32)+0xb6
a0 00000000`6cddc850 000007fe`f427fcd6 mscorlib_ni!System.Reflection.CustomAttributeData.GetCustomAttributes(System.Reflection.Assembly)+0x79
60 00000000`6cddc8b0 000007fe`f427fc1d mscorlib_ni!System.Resources.ResourceManager.GetSatelliteContractVersion(System.Reflection.Assembly)+0x66
c0 00000000`6cddc970 000007fe`f42719ab mscorlib_ni!System.Resources.ResourceManager.GetSatelliteAssembly(System.Globalization.CultureInfo)+0x3d
60 00000000`6cddc9d0 000007fe`f4277556 mscorlib_ni!System.Resources.ResourceManager.InternalGetResourceSet(System.Globalization.CultureInfo, Boolean, Boolean)+0x1ab
b0 00000000`6cddca80 000007ff`00908425 mscorlib_ni!System.Resources.ResourceManager.GetString(System.String, System.Globalization.CultureInfo)+0x36
50 00000000`6cddcad0 000007ff`009083ba Telerik_Web_UI!Telerik.Web.LocalizationProvider+EmbeddedResourceLocator.GetString(System.String)+0x35
40 00000000`6cddcb10 000007ff`00906944 Telerik_Web_UI!Telerik.Web.LocalizationStrings.GetString(System.String)+0x6a
40 00000000`6cddcb50 000007ff`0090479e Telerik_Web_UI!Telerik.Web.UI.RadEditor.FillDefaultDialogDefinitions()+0xb4
630 00000000`6cddd180 000007fe`f062d18c Telerik_Web_UI!Telerik.Web.UI.RadEditor.OnPreRender(System.EventArgs)+0x2e
30 00000000`6cddd1b0 000007fe`f062d200 System_Web_ni!System.Web.UI.Control.PreRenderRecursiveInternal()+0x6c
...
Version 2008.1.415.35 of Telerik.Web.UI.