Date: Mon, 5 Nov 2012 15:30:33 -0600 From: "Sam Fourman Jr." <sfourman@gmail.com> To: Garrett Cooper <yanegomi@gmail.com> Cc: Yuri <yuri@rawbw.com>, freebsd-hackers@freebsd.org Subject: Re: pgbench performance is lagging compared to Linux and DragonflyBSD? Message-ID: <CAOFF%2BZ3skNbeoHk9Yhdb2oTjprWcQrZbh46ZdLfBRn-EyD2H2g@mail.gmail.com> In-Reply-To: <CAGH67wScvnE7gYzVVtfehYbVfM465vrLjP9bX4KXSp8Sq-25mA@mail.gmail.com> References: <50980ADD.4010402@rawbw.com> <CAGH67wScvnE7gYzVVtfehYbVfM465vrLjP9bX4KXSp8Sq-25mA@mail.gmail.com>
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> The important item that has been left out (or is just implied as OS level > defaults) is sysctl/tunable variables set in the *BSD OSes (on DFly, > FreeBSD, and NetBSD). Unfortunately (based on my experience) FreeBSD could > be a lot better when it comes to defaults, and more tuning is required to > get better performance. So if they're working with the OS defaults, this > might not be a fair equivalent to the best performance that FreeBSD can > yield, but it's probably fair to do this for the sake of repeatability and > to prove what these OSes can do out of the box. This is in addition to the > [lock] contention issues that jeffr@ and a few others are working on > alleviating. > has someone wrote a howto for how to tune pgsql 9+ in FreeBSD? im mostly asking here to get information posted here for future reference, as google will pick this thread up and it will help others. -- Sam Fourman Jr.
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