Date: Mon, 5 Sep 2011 14:48:57 -0500 From: Dan Nelson <dnelson@allantgroup.com> To: Sean Hamilton <seanhamilton@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: Recommended amount of swap Message-ID: <20110905194857.GC9801@dan.emsphone.com> In-Reply-To: <CAL8FB_2vN-1uxUgLhB-gC%2BwqPx=jKo-88rMrDzJbJ5JPJoqNNA@mail.gmail.com> References: <CAL8FB_2vN-1uxUgLhB-gC%2BwqPx=jKo-88rMrDzJbJ5JPJoqNNA@mail.gmail.com>
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In the last episode (Sep 05), Sean Hamilton said: > What is the state of the art for the recommended amount of swap in > FreeBSD? Both "normal" systems with 512 MB - 8 GB of RAM, and large > database systems with around 128 - 256 GB. I suggest 2x RAM for systems less than 4gb or so. Anything more than 4GB of swap is probably never going to be used, and if it is used, you're just going to thrash your swap device. If you have 128GB of RAM and need to swap to disk, you desperately need more RAM, not swap :) -- Dan Nelson dnelson@allantgroup.com
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