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Re: Cygwin Filesystem Performance degradation 1.7.5 vs 1.7.7, and methods for improving performance


On 9/29/2010 2:29 PM, Derry Shribman wrote:
Hi,

xstat() is a new Linux system call that allows a user-mode application to
specifically request more (or less) stat information.

Since this is a new Linux API, it requires porting for existing Unix
application to replace every single stat() calls in their code to xstat() in
order to benefit from this API.

This is quite a big change in the code - and application maintainers will not
 rush to change their code until this new Linux kernels with this API are
commonly installed.

So it does not fit what Cygwin needs because: 1) it requires a lot of change
to existing code of every single application. 2) it will take many years
until it will be available on most of the installed Linux kernel images.

OK, so if we accept that as a premise for the sake of argument, why would application developers be more inclined to support a Cygwin-specific solution to this problem than they would a portable one? Every existing usage of stat() still needs to be inspected before any solution is implemented at the application level.

--
Larry


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