I don't think -O -O1 and -O2 impliciet -fomit-fram-pointer not sure about -O3
Ming-Wei > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf > Of Eelco van Beek - IC&S > Sent: Tuesday, October 28, 2003 9:37 AM > To: [email protected] > Subject: Re: [Dbmail] 100% cpu usage with dbmail-pop3d -- > SOLVED, for me > at least > > > I thought the stable version was compiled with -O which automatically > enables the omission of frame pointer usage? > > Best regards, > > Eelco > > On 27-okt-03, at 23:08, Bret Baptist wrote: > > > On Friday 24 October 2003 5:35 am, Shih Ming-Wei wrote: > >> hi, > >> > >> I have solve the 99% CPU usage on Linux/sparc systems that > >> we are using, apparently changing CFLAGS from "-O2 -pipe" to > >> "-march=v8 -mtune=v9 -O2 -pipe -fomit-frame-pointer" cahnges > >> the CPU usage from 99% to max 1.8% (avg 0.4 %). So my > >> conclusion is this is not a dbmail bug but dbmail must trigger > >> some bug in platform/compiler/glibc, > >> > >> Just my 2 cents > >> > >> > >> Hope this might help someone else > >> > >> Ming-Wei > > > > After more testing I have found that the important bit here is the > > -fomit-frame-pointer. If I define that I don't get the > excessive CPU > > usage. > > Is there any reason for not making this a standard compile flag? > > > > I am running debian testing (sarge): > > > > Which has: > > > > gcc-3.3.1-2 > > kernel: 2.4.18-bf2.4 #1 Son Apr 14 09:53:28 CEST 2002 i686 GNU/Linux > > libc6-2.3.2-7 > > mysql-client-4.0.13-3 > > > > Anything else relevant? > > > > -- > > Bret Baptist > > Systems and Technical Support Specialist > > [EMAIL PROTECTED] > > Internet Exposure, Inc. > > http://www.iexposure.com > > > > (612)676-1946 x17 > > Web Development-Web Marketing-ISP Services > > ------------------------------------------ > > > > > > Today is the tomorrow you worried about yesterday. > > > > _______________________________________________ > > Dbmail mailing list > > [email protected] > > https://mailman.fastxs.nl/mailman/listinfo/dbmail > > > _________________________ > E.J.A. van Beek > ICT Manager > IC&S > T: +31 30 2322878 > F: +31 30 2322305 > > PGP-key: > www.ic-s.nl/keys/eelco.txt > > _______________________________________________ > Dbmail mailing list > [email protected] > https://mailman.fastxs.nl/mailman/listinfo/dbmail >
