* Best gcc flags? @ 2010-01-22 18:54 Mark Knecht 2010-01-22 22:09 ` John Kacur 0 siblings, 1 reply; 7+ messages in thread From: Mark Knecht @ 2010-01-22 18:54 UTC (permalink / raw) To: RT Hi, I've got a new Intel Core i5-661 machine that I'm loading Gentoo on. I wonder if anyone here has any strong opinion son the best gcc options for this sort of machine and specifically what makes for the best rt performance? Thanks, Mark ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Best gcc flags? 2010-01-22 18:54 Best gcc flags? Mark Knecht @ 2010-01-22 22:09 ` John Kacur 2010-01-22 22:58 ` Mark Knecht 0 siblings, 1 reply; 7+ messages in thread From: John Kacur @ 2010-01-22 22:09 UTC (permalink / raw) To: Mark Knecht; +Cc: RT On Fri, Jan 22, 2010 at 7:54 PM, Mark Knecht <markknecht@gmail.com> wrote: > Hi, > I've got a new Intel Core i5-661 machine that I'm loading Gentoo > on. I wonder if anyone here has any strong opinion son the best gcc > options for this sort of machine and specifically what makes for the > best rt performance? > AFAIK, there are no -rt specific requirements for gcc, just use what you would normally use. John -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Best gcc flags? 2010-01-22 22:09 ` John Kacur @ 2010-01-22 22:58 ` Mark Knecht 2010-01-23 20:11 ` Xavier Miller 0 siblings, 1 reply; 7+ messages in thread From: Mark Knecht @ 2010-01-22 22:58 UTC (permalink / raw) To: John Kacur; +Cc: RT On Fri, Jan 22, 2010 at 2:09 PM, John Kacur <jkacur@redhat.com> wrote: > On Fri, Jan 22, 2010 at 7:54 PM, Mark Knecht <markknecht@gmail.com> wrote: >> Hi, >> I've got a new Intel Core i5-661 machine that I'm loading Gentoo >> on. I wonder if anyone here has any strong opinion son the best gcc >> options for this sort of machine and specifically what makes for the >> best rt performance? >> > > AFAIK, there are no -rt specific requirements for gcc, just use what you > would normally use. > > John > Yes that's my understanding also, but this is a brand new machine to me, Gentoo based where I can set all my gcc flags pretty easily, and for the Core i5-661 I'm not finding much info on what's recommended for gcc. -march=native? Or maybe use specific settings such as those for an i7? I'm just grasping around for ideas mostly. Thanks! - Mark -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Best gcc flags? 2010-01-22 22:58 ` Mark Knecht @ 2010-01-23 20:11 ` Xavier Miller 2010-01-23 22:27 ` Mark Knecht 0 siblings, 1 reply; 7+ messages in thread From: Xavier Miller @ 2010-01-23 20:11 UTC (permalink / raw) To: Mark Knecht; +Cc: John Kacur, RT Hello, Don't play with CFLAGS/LDFLAGS. -march=native will let GCC find the best (and most sable) options for your compiler. Playing with unsafe CFLAGS/LDFLAGS will produce unstable system, hard to debug. Kind regards, Xavier Miller. Le 22/01/10 23:58, Mark Knecht a écrit : > On Fri, Jan 22, 2010 at 2:09 PM, John Kacur <jkacur@redhat.com> wrote: >> On Fri, Jan 22, 2010 at 7:54 PM, Mark Knecht <markknecht@gmail.com> wrote: >>> Hi, >>> I've got a new Intel Core i5-661 machine that I'm loading Gentoo >>> on. I wonder if anyone here has any strong opinion son the best gcc >>> options for this sort of machine and specifically what makes for the >>> best rt performance? >>> >> >> AFAIK, there are no -rt specific requirements for gcc, just use what you >> would normally use. >> >> John >> > > Yes that's my understanding also, but this is a brand new machine to > me, Gentoo based where I can set all my gcc flags pretty easily, and > for the Core i5-661 I'm not finding much info on what's recommended > for gcc. -march=native? Or maybe use specific settings such as those > for an i7? > > I'm just grasping around for ideas mostly. > > Thanks! > > - Mark > -- > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Best gcc flags? 2010-01-23 20:11 ` Xavier Miller @ 2010-01-23 22:27 ` Mark Knecht 2010-01-24 13:45 ` Xavier Miller 0 siblings, 1 reply; 7+ messages in thread From: Mark Knecht @ 2010-01-23 22:27 UTC (permalink / raw) To: Xavier Miller; +Cc: John Kacur, RT On Sat, Jan 23, 2010 at 12:11 PM, Xavier Miller <xavier.miller@cauwe.org> wrote: > Hello, > > Don't play with CFLAGS/LDFLAGS. -march=native will let GCC find the best > (and most sable) options for your compiler. > Playing with unsafe CFLAGS/LDFLAGS will produce unstable system, hard to > debug. > > Kind regards, > Xavier Miller. > thanks. That's the direction I went. Trying to bring up X now. When it's up I'll start working on adding rt-sources. Cheers, Mark ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Best gcc flags? 2010-01-23 22:27 ` Mark Knecht @ 2010-01-24 13:45 ` Xavier Miller 2010-01-24 15:36 ` Mark Knecht 0 siblings, 1 reply; 7+ messages in thread From: Xavier Miller @ 2010-01-24 13:45 UTC (permalink / raw) Cc: RT The latest rt-sources for Gentoo are available in the pro-audio overlay ;) Xavier. Le 23/01/10 23:27, Mark Knecht a écrit : > thanks. That's the direction I went. Trying to bring up X now. When > it's up I'll start working on adding rt-sources. > > Cheers, > Mark -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: Best gcc flags? 2010-01-24 13:45 ` Xavier Miller @ 2010-01-24 15:36 ` Mark Knecht 0 siblings, 0 replies; 7+ messages in thread From: Mark Knecht @ 2010-01-24 15:36 UTC (permalink / raw) To: Xavier Miller; +Cc: RT Yep - I've used it for years. On Sun, Jan 24, 2010 at 5:45 AM, Xavier Miller <xavier.miller@cauwe.org> wrote: > The latest rt-sources for Gentoo are available in the pro-audio overlay ;) > > Xavier. > Le 23/01/10 23:27, Mark Knecht a écrit : >> thanks. That's the direction I went. Trying to bring up X now. When >> it's up I'll start working on adding rt-sources. >> >> Cheers, >> Mark > -- > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2010-01-24 15:36 UTC | newest] Thread overview: 7+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2010-01-22 18:54 Best gcc flags? Mark Knecht 2010-01-22 22:09 ` John Kacur 2010-01-22 22:58 ` Mark Knecht 2010-01-23 20:11 ` Xavier Miller 2010-01-23 22:27 ` Mark Knecht 2010-01-24 13:45 ` Xavier Miller 2010-01-24 15:36 ` Mark Knecht
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for NNTP newsgroup(s).