New Mono Log Profiler

Paolo has checked into Mono's GIT repository our brand-new profiler for Mono applications.

The new profiler is documented in detail here, and is available with Mono 2.9+ (this means: it is available if you build Mono from GIT, and will be part of the upcoming 2.10 release).

We would love to hear your feedback on it, and we hope to have a UI integrated into MonoDevelop soon.

Update: This is what one of the reports of the new profiler can produce, this is taken from running an ASP.NET application (a question that came up a few days ago on IRC):

       Heap shot 5 at 14.518 secs: size: 43684432, object count: 562907, class count: 543
            Bytes      Count  Average Class name
         10506984      87373      120 System.Collections.Hashtable.Slot[] (bytes: +1939272, count: +16161)
               87346 references from: System.Collections.Hashtable
          8130304      87486       92 System.Int32[] (bytes: +1706912, count: +16164)
               87346 references from: System.Collections.Hashtable
               40 references from: System.Collections.Generic.Dictionary
               30 references from: System.Globalization.NumberFormatInfo
          6846000      57050      120 System.Web.Caching.CacheItem (bytes: +1232880, count: +10274)
          4891432      87347       56 System.Collections.Hashtable (bytes: +904176, count: +16146)
               28526 references from: System.Web.HttpStaticObjectsCollection
               28525 references from: System.Threading.ReaderWriterLock
               28524 references from: System.Web.SessionState.SessionStateItemCollection
          1597344      28524       56 System.Web.SessionState.InProcSessionItem (bytes: +287672, count: +5137)
               28524 references from: System.Web.Caching.CacheItem
          1597344      28524       56 System.Web.SessionState.SessionStateItemCollection (bytes: +287616, count: +5136)
               28524 references from: System.Web.SessionState.InProcSessionItem

	This heapshot was taken 14.518 seconds after application startup, at the
	time there were 562907 objects in the heap, of 543 different types,
	using about 43 MB of memory.