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Re: gprof : histogram records

From: Lilia Ghachem
Subject: Re: gprof : histogram records
Date: Tue, 16 Aug 2005 08:45:20 +0200

Thanks a lot lan, It's more clear now !


On 15 Aug 2005 11:28:47 -0700, Ian Lance Taylor <address@hidden> wrote:
> Lilia Ghachem <address@hidden> writes:
> > I have a question about the number of histogram records in the profile
> > data file: gmon.out file : Can we have more than ONE histogram record?
> > in all the tests I made, I found just 1 ...
> > So If it's not the case, where these histogram records are stored?
> > (list, vector..?)
> The gprof program is only prepared to see a single histogram record in
> a gmon.out file.  So I think it is fairly safe to assume that a
> gmon.out file will have only one histogram.
> More precisely, gprof can use more than histogram, but they must cover
> the same range of the program--same low PC, high PC, number of bins,
> and profiling rate.  Support multiple histograms over the same
> executable space is intended to let you generate multiple gmon.out
> files from a single executable and combine them in a single gprof run.
> Ian

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