On 05/05/2010 12:21 PM, David Malcolm wrote: > On Wed, 2010-05-05 at 18:24 +0200, Michal Schmidt wrote: >> On Wed, 05 May 2010 17:30:29 +0200 Jim Meyering wrote: >>> I propose (seriously, now) to add this to /etc/profile, >>> or to some always-sourced file like /etc/profile.d/glibc.sh: >>> >>> # Enable glibc's malloc perturbing feature in Rawhide. >>> # http://udrepper.livejournal.com/11429.html >>> read _f _r _n _code_name < /etc/redhat-release && >>> case $_code_name in >>> *Rawhide*) export MALLOC_PERTURB_=$((RANDOM % 255 + 1)) ;; >>> esac >> >> Would export MALLOC_CHECK_=3 be a useful addition too? > > I like the idea of rawhide-only debug checks like this, but can we add > some kind of message to login like this: Agreed, I'm tired of (insert random benchmarking site) saying "OH NOES! Fedora got SLOWER AGAIN!" when it's really a lot of debug going on. Stating something like this clearly on login & install would be nice, not just for this MALLOC_PERTURB_ change but in general. -Eric > <idea> > This is a pre-release version of Fedora, and is running with extra > diagnostics that help find bugs, but impact performance. > > Please read > (LINK TO A WIKI PAGE) > before attempting to run benchmarks on this system. > </idea> > > Is there a good place to add this? e.g. /etc/issue ? I'm not sure of > how to handle a conditional there. > > Dave > > -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
