Re: Problems with multithreading and slow compilation

[Hans Aberg]

I do not know. I think the best thing would be if Paul Eggert or somebody
could time profile Bison using your input file too see where the bottleneck
is. Then one might be able to do something about it.


At 16:33 -0700 2004/07/13, Guru Chakravarthy wrote:
>Well sorry for the late reply,
>well my Input file size is around 1092 KB and there
>are around 3000 Rules and 1500 Terminals.
>When we used Bison 1.35 we had fast compilation in
>both windows and solaris less than 15-30 seconds.
>but after upgrading to 1.875 it takes around 4-5 min
>in solaris and 20-30 seconds in windows. ...
>
>any clue what is happening ?
>
>thanks
>Guru
>--- Hans Aberg <address@hidden> wrote:
>> At 13:13 -0700 2004/07/07, Guru Chakravarthy wrote:
>>
>> >> >Have other users been having similar problems?
>> >>
>> >
>> >I am not sure if my problem is same as yours but,
>> for
>> >me  producing the .cpp file from .ypp takes around
>> 5-6
>> >min. in solaris and most of the time is spent on
>> "m4"
>> >and its m4 memory usage touchs nearly 175 MB. but
>> on
>> >windows it is very fast taking less than 45 seconds
>> !
>> >
>> >Both machines have decent configurations .
>> (Solaris:
>> >Sunblade 100, 512 MB RAM, Windows: P4 2.4 ,1 GB RAM
>> )
>> >
>> >can anyone tell what might be the issue ?
>>
>> Something funny is going on with your setup, because
>> on my very slow Mac G2
>> computer, Bison compiles in no-time (fraction of a
>> second). How large is
>> your input file (mine is 52 KB). What skeleton file
>> are you using?
>>
>>   Hans Aberg
>>
>>
>>
>>
>> _______________________________________________
>> address@hidden
>> http://lists.gnu.org/mailman/listinfo/help-bison
>>
>
>
>
>
>
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