Messages in this thread | | | Date | Sat, 13 Apr 1996 02:03:31 -0400 (EDT) | From | Jauder Ho <> | Subject | Re: Fast Pentium memcpy stuff |
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I am using your memcpy.....
--Jauder
On Fri, 12 Apr 1996, Robert L Krawitz wrote:
> First off, would everyone who uses this please send me email? I'd > like to set up a mailing list so I don't have to bother everyone on > linux-kernel who's perfectly satisfied with slow memcpy performance. > > Secondly, I've started having problems with it (at least in the > routine that copies from system to user space; the others seem fine). > Specifically, make -j gets a lot of corruption (bogus source files) in > some of the newer kernels that didn't happen even as recently as the > low 1.3.8x's (I only got the usual sig11's that I also got without the > fast copy). This is only an issue with the _tofs routine; if I > disable that one and use the others (_fromfs, "regular" memcpy, and > zero_chunk) everything's fine (although read performance from the > filesystem drops a lot). I'd like someone else to do this to see if > this problem is reproducible or happens only on my system. > > -- > Robert Krawitz <rlk@tiac.net> http://www.tiac.net/users/rlk/ > > Member of the League for Programming Freedom -- mail lpf@uunet.uu.net > Tall Clubs International -- tci-request@aptinc.com or 1-800-521-2512 > >
.sig under construction
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