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Re: GCC 3.3 compile speed regression - THE GRAPH


> The following graph shows the deterioration in compile-time performance
> as seen on the gcc-3_3-branch (and, prior to the creation of the branch,
> on the trunk itself).  The test case is the same Qt fragment I used for
> my earlier GC analysis; the test machine (a RedHat Linux 8.0 box) is
> also the same.  You can find the preprocessed source at:

>   http://homepage.mac.com/zlaski/FileSharing1.html

Good work.

With this program the GC cost is around 35%, including 2.6% cost for
allocating using ggc_alloc (versus sequential allocation).

Tim Josling


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