New stat stuff (was [PATCH] improve performance of stat() ope rations (e.g. ls -lR ))

Christopher Faylor
Tue May 28 19:27:00 GMT 2002

On Tue, May 28, 2002 at 10:25:37PM -0400, Christopher Faylor wrote:
>On Tue, May 28, 2002 at 09:58:52PM -0400, Don Bowman wrote:
>>So I've performed a mini-benchmark of Chris' changes.
>>I did a ls -lR >/dev/null of the cygwin source tree on my
>>Baseline (current setup.exe install): 1m14.9s
>>'statquery' patch I sent earlier: 4.081s
>>Current CVS tree: 3.718s
>>Current CVS tree w/ -E switch to mount: 3.711s
>>Current CVS tree w/ -X switch to mount: 3.716s
>>Not all that scientific, I ran each twice, took the 2nd timing.
>>So, looks good, excellent work. I still don't see any 
>>difference on the -E or the -X tho'.
>That has got to mean that there's something wrong in the stat
>logic.  I didn't do anything to speed up the normal case, AFAIK,
>unless you're doing this on a FAT/FAT32 partition.

Actually, even in that case, it shouldn't make that big a deal.


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