Date: Mon, 5 Nov 2012 11:23:45 -0500 From: Eitan Adler <lists@eitanadler.com> To: "Rodney W. Grimes" <freebsd@pdx.rh.cn85.chatusa.com> Cc: Juli Mallett <juli@clockworksquid.com>, "freebsd-mips@FreeBSD.org" <freebsd-mips@freebsd.org> Subject: Re: CACHE_LINE_SIZE macro. Message-ID: <CAF6rxgn-bNJOuvdiRj_UUGQUTRaeOt54OdzHOioNz5f566hoig@mail.gmail.com> In-Reply-To: <201211041828.qA4ISomC076058@pdx.rh.CN85.ChatUSA.com> References: <CACVs6=_BrwJ19CPj7OqKvV8boHfujVWqn96u3VPUmZ040JpAeQ@mail.gmail.com> <201211041828.qA4ISomC076058@pdx.rh.CN85.ChatUSA.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 4 November 2012 13:28, Rodney W. Grimes <freebsd@pdx.rh.cn85.chatusa.com> wrote: > > What ABI is exposing anything about cache parameters or may be come dependent > on such information? There has been some discussion recently about padding lock mutexs to the cache line size in order to avoid false sharing of CPUs. Some have claimed to see significant performance increases as a result. -- Eitan Adler
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAF6rxgn-bNJOuvdiRj_UUGQUTRaeOt54OdzHOioNz5f566hoig>