On 27/11/2010 17:22, Sven Barth wrote:
On 27.11.2010 18:16, Jürgen Hestermann wrote:

Calling the system to ask for the last-modification time that often
(even with all/most data cached by the OS) would take that long on
Windows, while under Linux it wouldn't even take a single second...

But how does it come that there can be such a difference doing nearly
the same things on Linux and Windows? I can't believe that Windows is
*such* a bad design. They all cook with water I think.

It would be interesting to see a comparison on the same filesystem. E.g. fat32 or ext2 (using ext2ifs). NTFS is a bad example because it is implemented on Linux using a user file system driver (fuse), which might influence the performance test.

@Martin: How does the IDE ask for the last modification time (on Linux and on Windows)? I can then crawl through the source code (for Windows using ReactOS) to see what both OSes are basically doing.
I don't remember, I can't even find the bug at the moment.

It was somewhere in codetools. It was invoked when you tried to do implementation-jump. I vaguely remember Codetool was not caching this info, so potentially asking several times for the same file.. A cache was added, and things go better.

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