Date: Sat, 26 Apr 2014 12:49:41 +0100 From: Karl Pielorz <kpielorz_lst@tdx.co.uk> To: Jilles Tjoelker <jilles@stack.nl> Cc: freebsd-hackers@freebsd.org Subject: Re: HAST performance / dtrace / _umtx_op Message-ID: <055E8D8DCB6AC34FD6E7AB24@study64.tdx.co.uk> In-Reply-To: <20140426112943.GA81447@stack.nl> References: <B044E9557B63332185C7792F@study64.tdx.co.uk> <20140426112943.GA81447@stack.nl>
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--On 26 April 2014 13:29:43 +0200 Jilles Tjoelker <jilles@stack.nl> wrote: > _umtx_op implements blocking not only for mutexes but also for condition > variables, and in the latter case waiting for a long time does not > indicate a problem. Thanks for the info - I'll keep looking around, though it's looking like the cause is not going to be anything obvious/simple (to me, anyway :-) -Karl
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