Re: [Jython-users] printing to file with Jython, speed is very poor

[Patrick C. <pat...@nt...>]

At 12:44 26/01/2003, Diez B. Roggisch wrote:
>Maybe this isn't a jython-issue, but a java one. I recently noticed on 
>several
>occasions that dealing with large input in java causes strange delays - as if
>some internal buffer is filled (slowly) before the actual streams operate on
>the data.

looks like a Jython issue, and this has been raised already, as Samuele 
kindly points out

'file flushed to disk too often'
https://sourceforge.net/tracker/index.php?func=detail&aid=674932&group_id=12867&atid=112867

>However, as you have isolated the code so far, wouldn't it be possible to use
>a java-stream to write the csv lines? Maybe you lose some convenience there,
>but at least for debugging it would be helpful to see if the performance
>increases. If not - then you know who to blame and can joyfully switch to
>python :)

Yes performance increases dramatically if I do it the Java way with 
FileOutputStream and PrintStream. Not as fast as Python but, OK for what I 
need.

I'm a bit disappointed I can't do it the simple Python way!

thanks guys

Patrick