RE: [cdt-dev] Preparsed Index Setup Questions

[Andrew.Ferguson@xxxxxxxxxxx]

hi Tim,

 I'll take a look at the bugs/rfes.

I've (re)discovered what is happening here - URIRelativeLocationConverter
is sensitive to whether
the URI passed to the constructor is terminated with
a forward slash. This is ultimately due to
the behaviour of java.net.URI:

           
    URI.create("file:/D:/Symbian/9.5/epoc32/include/").resolve("foo.h")
        evaluates to
           
    file:/D:/Symbian/9.5/epoc32/include/foo.h

           
    URI.create("file:/D:/Symbian/9.5/epoc32/include").resolve("foo.h")
        evaluates to
           
    file:/D:/Symbian/9.5/epoc32/foo.h

but this is not flagged up in the docs - I'll fix
that right away.

This is the mistake I made in yesterday's benchmarking
- correcting it with a slash-terminated URI I see:
        helloworld:  
     20KiB -> 20KiB, 3s -> 0.1s
        'agenda' user
application: 8MiB -> 740KiB, 12s -> 2.44s
which is more like the gains I was seeing this time
last year.

I did have to put in a workaround for an exception
during indexing to get these results:
        https://bugs.eclipse.org/bugs/show_bug.cgi?id=219773

thanks,
Andrew

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