> 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 > >>notebook. > >> > >>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.
Its the anti-virus. Your change no longer opens the file for read, so the anti-virus doesn't do anything, thus the enormous difference. As to why the negligible difference between -E/-X/nothing, no idea.
