[IronPython] Performance Issue

Wed Nov 12 21:01:19 CET 2008

Oh, sorry, I missed a step...  You'll need to call ScriptEngine.GetCompilerOptions().  Cast that to a PythonCompilerOptions, and then do options.Module |= ModuleOptions.Optimized;  Finally do source.Compile(options) and then it should give you the optimized code.

From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Wilfredo Lugo
Sent: Wednesday, November 12, 2008 11:45 AM
To: Discussion of IronPython
Subject: Re: [IronPython] Performance Issue

Thanks!.

I was able to get the default scope from CompiledCode, but I am still getting the same performance.  Here is the latest code :
        static void Main(string[] args)
        {
            ScriptRuntime runtime = Python.CreateRuntime();
            ScriptEngine engine = Python.CreateEngine();
            ScriptSource source = engine.CreateScriptSourceFromFile("interpolate.py");
            Console.WriteLine(DateTime.Now);
            CompiledCode compiled = source.Compile();
            compiled.Execute();
            ScriptScope scope = compiled.DefaultScope;
            Microsoft.Func<string, string, string, string, int, int> func = scope.GetVariable<Microsoft.Func<string, string, string, string, int, int>>("interpolate_start");
            Console.WriteLine(func("3-day-data.txt", "3-day-output.txt", "2008-01-01 00:00:21","2008-01-03 23:59:08",60).ToString());
            Console.WriteLine(DateTime.Now);
            Console.ReadLine();
        }

This is the latest output :
   11/12/2008 3:13:01 PM
   WARNING: desired starting time (Tue Jan 01 00:00:21 2008) prior to time of first
    data point (Tue Jan 01 00:00:32 2008), current line: 9411
    series: 3D
    force==False, exiting..
    0
11/12/2008 3:16:41 PM

Is there could be a problem on how I am calling the interpolation function?  I mean from python.exe I do something like this:

if __name__ == '__main__':
   Interpolate('3-day-data.txt', '3-day-output-original.txt', '2008-01-01 00:00:
21', '2008-01-03 23:59:08', intvl=60, maxgap = 5, stacked = True, stackedCol = 2
, tformat = '%Y-%m-%d %H:%M:%S', debug = False).start()

To be able to call the script from the DLR I have something like this:

def interpolate_start(inFile, outFile, startDate, endDate, intvl):
   Interpolate(inFile, outFile,startDate,endDate,intvl, maxgap = 5, stacked = Tr
ue, stackedCol = 2, tformat = '%Y-%m-%d %H:%M:%S', debug = False).start()
   return 0

That's the only difference I found on how the script is called from python and DLR.

Any comments?

regards,

wilfredo

On Wed, Nov 12, 2008 at 2:56 PM, Dino Viehland <dinov at microsoft.com<mailto:dinov at microsoft.com>> wrote:

CompiledCode exposes the default scope it executes in via the DefaultScope property.  So hold onto the result of source.Compile and after executing the code you can grab the scope and use it to get your variable.

From: users-bounces at lists.ironpython.com<mailto:users-bounces at lists.ironpython.com> [mailto:users-bounces at lists.ironpython.com<mailto:users-bounces at lists.ironpython.com>] On Behalf Of Wilfredo Lugo
Sent: Wednesday, November 12, 2008 10:25 AM
To: Discussion of IronPython

Subject: Re: [IronPython] Performance Issue

Thanks.

But then If I don't use my defined scope, how I could fill my function delegate?

Right now I am using :

Microsoft.Func<string, string, string, string, int, int> func = scope.GetVariable<Microsoft.Func<string, string, string, string, int, int>>("interpolate_start");

If I use engine.GetVariables<Func<....>() I still need to pass a ScriptScope to it.  How do I get the default scope (from ScriptEngine or ScriptSource) to be able to get the delegate?

regards,

wilfredo

On Wed, Nov 12, 2008 at 2:01 PM, Dino Viehland <dinov at microsoft.com<mailto:dinov at microsoft.com>> wrote:

Instead of doing:

            ScriptScope scope = engine.CreateScope();

            Console.WriteLine(DateTime.Now);

            source.Execute(scope);

do:

                source.Compile().Execute()

and your code should then run in an optimized default scope for the code - just like it does at the command line.

From: users-bounces at lists.ironpython.com<mailto:users-bounces at lists.ironpython.com> [mailto:users-bounces at lists.ironpython.com<mailto:users-bounces at lists.ironpython.com>] On Behalf Of Wilfredo Lugo
Sent: Wednesday, November 12, 2008 9:29 AM
To: users at lists.ironpython.com<mailto:users at lists.ironpython.com>
Subject: Re: [IronPython] Performance Issue

I run the script directly from ipy.exe and it basically behaves pretty similar to python.exe (it always took one second more, but I could live with that).  Here is the output:

$ date +%M:%S;./ipy.exe interpolate.py;date +%M:%S

17:36

WARNING: desired starting time (Tue Jan 01 00:00:21 2008) prior to time of first

 data point (Tue Jan 01 00:00:32 2008), current line: 9411

 series: 3D

force==False, exiting..

17:41

So, the problem is on the DLR side.  Any clues?

-------------------------------------------------------------------------

How does python.exe compare directly to ipy.exe?  That is, try running "date +%M:%S;ipy.exe interpolate.py;date +%M:%S" instead of using the DLR hosting APIs.

Thanks,

Dave

From: users-bounces at lists.ironpython.com<http://lists.ironpython.com/listinfo.cgi/users-ironpython.com> [mailto:users-bounces at lists.ironpython.com<http://lists.ironpython.com/listinfo.cgi/users-ironpython.com>] On Behalf Of Wilfredo Lugo

Sent: Wednesday, November 12, 2008 8:32 AM

To: users at lists.ironpython.com<http://lists.ironpython.com/listinfo.cgi/users-ironpython.com>

Subject: [IronPython] Performance Issue

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