[darcs-users] profiling darcs (issue973)
Ashley Moran
ashley.moran at patchspace.co.uk
Tue Aug 5 13:42:11 UTC 2008
On Aug 04, 2008, at 3:59 pm, zooko wrote:
> Looks like http://bugs.darcs.net/issue971 .
>
> According to that ticket it is not fixed and the work-around is to
> install the GHC darcs repository from a tarball. :-(
>
> Also rsync would probably do, if you have that.
>
> Regards,
>
> Zooko
Hi Zooko/Eric
I found another workaround on Mac OS X: create a disk image formatted
as Mac OS Extended (Case Sensitive), and then you can darcs get fine.
(Which also proves it's the case sensitivity bug too, I guess.)
I don't know how the GHC team would react to having to work off a
mounted disk image on Windows though...
My profiling output, on an iMac Core 2 Duo 2.5GHz, running OS X
10.5.4, out of that disk image:
Run 1
=====
Old summary
-----------
total time = 4.74 secs (237 ticks @ 20 ms)
total alloc = 1,531,704,836 bytes (excludes profiling overheads)
Hashed summary
--------------
total time = 14.02 secs (701 ticks @ 20 ms)
total alloc = 1,626,606,948 bytes (excludes profiling overheads)
Darcs 2 summary
---------------
total time = 13.80 secs (690 ticks @ 20 ms)
total alloc = 1,573,600,364 bytes (excludes profiling overheads)
Run 2
=====
Old summary
-----------
total time = 4.44 secs (222 ticks @ 20 ms)
total alloc = 1,531,704,948 bytes (excludes profiling overheads)
Hashed summary
--------------
total time = 6.18 secs (309 ticks @ 20 ms)
total alloc = 1,626,522,456 bytes (excludes profiling overheads)
Darcs 2 summary
---------------
total time = 4.86 secs (243 ticks @ 20 ms)
total alloc = 1,573,521,540 bytes (excludes profiling overheads)
Hope this is of some use.
Ashley
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