Doom9's Forum - View Single Post - An approach to an open source fast memset

ARDA · 30th April 2007, 22:31

Changelog Version 1.2

It does not include Camel - CPU Identifying Tool Copyright (C) 2002, Iain Chesworth anymore
A new L2 cache size detection code. Updated for some new machines.
An error detection has been added to test this new code
Added use of 128 xmm registers for old Athlon XP and Pentium III SSE capable.
Several small changes to optimize perfomance.

At this stage I can say that memset is almost finished; some fine tunning can still be
done. This code depends highly on a correct L2 cache size detection. The updated version
includes a new code; that is why I need your help.
If anyones gets "L2 cache size not detected; impossible to continue. Use greyscale()."
I ask you please to report here. Need processor type and L2 cache size.

Version 1.2.1
updated:
Source and dll http://www.iespana.es/Ardaversions/GREY1_21.7z

Thanks ARDA

30th April 2007, 22:31	#11 \| Link
ARDA Registered User Join Date: Nov 2001 Posts: 291	Changelog Version 1.2 It does not include Camel - CPU Identifying Tool Copyright (C) 2002, Iain Chesworth anymore A new L2 cache size detection code. Updated for some new machines. An error detection has been added to test this new code Added use of 128 xmm registers for old Athlon XP and Pentium III SSE capable. Several small changes to optimize perfomance. At this stage I can say that memset is almost finished; some fine tunning can still be done. This code depends highly on a correct L2 cache size detection. The updated version includes a new code; that is why I need your help. If anyones gets "L2 cache size not detected; impossible to continue. Use greyscale()." I ask you please to report here. Need processor type and L2 cache size. Version 1.2.1 updated: Source and dll http://www.iespana.es/Ardaversions/GREY1_21.7z Thanks ARDA Last edited by ARDA; 24th June 2007 at 08:14.