[Cmake] Win32 "Blended" processor vs Pentium
Miller, James V (CRD)
millerjv at crd . ge . com
Mon, 5 Nov 2001 08:54:04 -0500
This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
------_=_NextPart_000_01C16601.547F8BD0
Content-Type: multipart/alternative;
boundary="----_=_NextPart_001_01C16601.547F8BD0"
------_=_NextPart_001_01C16601.547F8BD0
Content-Type: text/plain;
charset="iso-8859-1"
Stephen Alyward mentioned the other day that he has seen as much as a 2X performance improvement if
VC++ is set to create instructions for the Pentium processor as opposed to the "Blended" mode which
is the current default.
Has anyone else seen such performance increases switching from "blended" to "pentium"?
Should CMake support changing this setting? Or perhaps should we just the default to be compile for
Pentium? Are we worried about building applications for people with 486's? (I am currently getting
pressure to pull machines with less than a Pentium II off our network :)
Jim Miller
_____________________________________
Visualization & Computer Vision
GE Corporate Research & Development
Bldg. KW, Room C218B
P.O. Box 8, Schenectady NY 12301
millerjv at crd . ge . com < mailto:millerjv at crd . ge . com <mailto:millerjv at crd . ge . com> >
(518) 387-4005, Dial Comm: 8*833-4005,
Cell: (518) 505-7065, Fax: (518) 387-6981
------_=_NextPart_001_01C16601.547F8BD0
Content-Type: text/html;
charset="iso-8859-1"
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META content="MSHTML 5.50.4807.2300" name=GENERATOR></HEAD>
<BODY>
<DIV><SPAN class=888344913-05112001><FONT size=2>Stephen Alyward mentioned the
other day that he has seen as much as a 2X performance improvement if VC++ is
set to create instructions for the Pentium processor as opposed to the "Blended"
mode which is the current default.</FONT></SPAN></DIV>
<DIV><SPAN class=888344913-05112001><FONT size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=888344913-05112001><FONT size=2>Has anyone else seen such
performance increases switching from "blended" to "pentium"?</FONT></SPAN></DIV>
<DIV><SPAN class=888344913-05112001><FONT size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=888344913-05112001><FONT size=2>Should CMake support changing
this setting? Or perhaps should we just the default to be compile for
Pentium? Are we worried about building applications for people with 486's?
(I am currently getting pressure to pull machines with less than a Pentium II
off our network :)</FONT></SPAN></DIV>
<DIV><SPAN class=888344913-05112001></SPAN> </DIV><BR>
<P><B><FONT face="Comic Sans MS" color=#000080>Jim Miller</FONT></B>
<BR><B><I><FONT face=Arial color=#ff0000
size=2>_____________________________________</FONT></I></B><I></I><BR><I></I><I><FONT
face=Arial color=#000000 size=1>Visualization & Computer Vision<BR>GE
Corporate Research & Development<BR>Bldg. KW, Room C218B<BR>P.O. Box 8,
Schenectady NY 12301<BR><BR></FONT><U><FONT face=Arial color=#0000ff
size=1>millerjv at crd . ge . com <<A
href="mailto:millerjv at crd . ge . com">mailto:millerjv at crd . ge . com</A>></FONT></U></I><BR><I><FONT
face=Arial color=#000000 size=1>(518) 387-4005, Dial Comm: 8*833-4005,
</FONT></I><BR><I><FONT face=Arial color=#000000 size=1>Cell: (518) 505-7065,
Fax: (518) 387-6981</FONT></I> </P><BR>
<DIV> </DIV></BODY></HTML>
------_=_NextPart_001_01C16601.547F8BD0--
------_=_NextPart_000_01C16601.547F8BD0
Content-Type: application/octet-stream;
name="Miller, James V (CRD).vcf"
Content-Disposition: attachment;
filename="Miller, James V (CRD).vcf"
BEGIN:VCARD
VERSION:2.1
N:Miller;James
FN:Miller, James V (CRD)
ORG:CRD;ESL
TITLE:Computer Scientist
TEL;WORK;VOICE:*833-4005
TEL;WORK;VOICE:1 518 387-4005
ADR;WORK:;KW-C218B;P.O. Box 8;Schenectady;New York;12301;USA
LABEL;WORK;ENCODING=QUOTED-PRINTABLE:KW-C218B=0D=0AP.O. Box 8=0D=0ASchenectady, New York 12301=0D=0AUSA
EMAIL;PREF;INTERNET:millerjv at crd . ge . com
REV:20010420T140329Z
END:VCARD
------_=_NextPart_000_01C16601.547F8BD0--