How to do profiling in MAL interface?

Martin Kersten martin.kersten at cwi.nl
Sat Apr 9 08:17:15 CEST 2016


You better consider using the stethoscope for doing this kind of analysis.
The documentation need some updates.


On 09/04/16 06:07, Constantine Feng wrote:
> Hi all,
>
> I know I can use the TRACE SQL command. But I want to do it in the "-lmal" interface (because I massaged the MAL plans a bit to test my research ideas).
>
> Particularly, I find the information given on this website (https://www.monetdb.org/Documentation/Manuals/MonetDB/Modules/profiler ) doesn't match the source code. I can't find the profiler.activate() or profiler.deactivate(), for example.
>
>
> mal>manual.help("profiler.*");
> profiler.cpuload
> profiler.cpustats
> profiler.cleanup
> profiler.closeStream
> profiler.dumpTrace
> profiler.getSystemTime
> profiler.getUserTime
> profiler.getDiskWrites
> profiler.getDiskReads
> profiler.getTrace
> profiler.noop
> profiler.openStream
> profiler.reset
> profiler.setHeartbeat
> profiler.stop
> profiler.stethoscope
> profiler.tomograph
>
>
> Version: (Jul2015-SP3). Build from source.
>
> - Neo
>
>
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