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Re: [PATCH] mmap implementation for mingw.

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
Nov 21, 2008, 10:48 UTC
Message-ID
<alpine.DEB.1.00.0811211143550.30769@pacific.mpi-cbg.de>
In-Reply-To
<gg5t5s$qc8$1@ger.gmane.org>
Hi,
[re-Cc:ed j6t]
On Fri, 21 Nov 2008, Vasyl' Vavrychuk wrote:
Show 6 quoted lines
> [Dscho knows that j6t wrote this:]
> 
> > It doesn't pass the test suite, for example t5301-sliding-window.sh 
> > fails.
>
> I will investigate.

Note that I quickly discarded the idea of mmap() on MinGW because at least in the past, we used to rename files that were mmap()ed. That is a no-go with CreateFile().

And I'd really like to see speed comparisons; AFAIR we had major issues with mmap() performance on MacOSX, and use lseek() && pread() for that particular code instead now.

Note that I find your work valuable, even if it should turn out that CreateFile() is slower, because at least we will know.

Thanks, Dscho

Previous: Johannes SixtNext: Bryan Donlan
Message 5 of 7 in “mmap implementation for mingw.”
  1. mmap implementation for mingw.Vasyl Vavrychuk, Nov 21, 2008
  2. Johannes SixtNov 21, 2008
  3. Vasyl' VavrychukNov 21, 2008
  4. Johannes SixtNov 21, 2008
  5. Johannes SchindelinNov 21, 2008
  6. Bryan DonlanNov 21, 2008
  7. Johannes SchindelinNov 21, 2008

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