Date: Mon, 13 Jan 2014 21:15:06 +0200 From: Alexander Motin <mav@FreeBSD.org> To: Alexey Dokuchaev <danfe@FreeBSD.org> Cc: svn-src-stable@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org, svn-src-stable-9@freebsd.org Subject: Re: svn commit: r260474 - stable/9/sys/x86/cpufreq Message-ID: <52D43B3A.9090808@FreeBSD.org> In-Reply-To: <20140113142347.GA96299@FreeBSD.org> References: <201401091045.s09AjcFi083701@svn.freebsd.org> <20140113142347.GA96299@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On 13.01.2014 16:23, Alexey Dokuchaev wrote: > On Thu, Jan 09, 2014 at 10:45:38AM +0000, Alexander Motin wrote: >> New Revision: 260474 >> URL: http://svnweb.freebsd.org/changeset/base/260474 >> >> Log: >> MFC r259197: >> Do not DELAY() for P-state transition unless we want to see the result. >> >> Intel manual says: "If a transition is already in progress, transition to >> a new value will subsequently take effect. Reads of IA32_PERF_CTL determine >> the last targeted operating point." So seems it should be fine to just >> trigger wanted transition and go. Linux does the same. >> >> Modified: >> stable/9/sys/x86/cpufreq/est.c > > It looks like stable/8 can also benefit from this commit. Mind making one? Done. -- Alexander Motin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?52D43B3A.9090808>