Date: Tue, 16 Mar 2004 13:32:10 -0800 (PST) From: Doug White <dwhite@gumbysoft.com> To: Seigo Tanimura <tanimura@tanimura.dyndns.org> Cc: arch@FreeBSD.org Subject: Re: Is MTX_CONTESTED evil? Message-ID: <20040316133013.P42715@carver.gumbysoft.com> In-Reply-To: <200403160519.i2G5J0V6023193@urban> References: <200403160519.i2G5J0V6023193@urban>
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On Tue, 16 Mar 2004, Seigo Tanimura wrote: > What would it be like if we axed MTX_CONTEST and let > _mtx_unlock_sleep() wake up all of the blocked threads? Excuse my naievete, but this sounds like it would trigger a thundering-herd response on a heavily contested mutex (like Giant). That would be Bad. :) -- Doug White | FreeBSD: The Power to Serve dwhite@gumbysoft.com | www.FreeBSD.org
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