Date: Wed, 24 Oct 2012 11:41:06 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Jim Harris <jimharris@freebsd.org> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r242014 - head/sys/kern Message-ID: <CAJ-VmonpdJ445hXVaoHqFgS0v7QRwqHWodQrVHm2CN9T661www@mail.gmail.com> In-Reply-To: <201210241836.q9OIafqo073002@svn.freebsd.org> References: <201210241836.q9OIafqo073002@svn.freebsd.org>
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On 24 October 2012 11:36, Jim Harris <jimharris@freebsd.org> wrote: > Pad tdq_lock to avoid false sharing with tdq_load and tdq_cpu_idle. Ok, but.. > struct mtx tdq_lock; /* run queue lock. */ > + char pad[64 - sizeof(struct mtx)]; .. don't we have an existing compile time macro for the cache line size, which can be used here? Adrian
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