Date: Fri, 24 Jul 2015 00:49:39 +0000 From: Glen Barber <gjb@FreeBSD.org> To: Mark Linimon <linimon@lonesome.com> Cc: Brandon Allbery <allbery.b@gmail.com>, Michelle Sullivan <michelle@sorbs.net>, freebsd-stable <freebsd-stable@freebsd.org>, Jason Unovitch <jason.unovitch@gmail.com>, herbert@oslo.ath.cx Subject: Re: 10.2-Beta i386..what's wrong..? Message-ID: <20150724004939.GN84931@FreeBSD.org> In-Reply-To: <20150724004443.GC1370@lonesome.com> References: <55B17B7A.4080402@gmail.com> <20150723234805.GK84931@FreeBSD.org> <55B18488.9060602@sorbs.net> <20150724004026.GA1370@lonesome.com> <CAKFCL4VVtLspj%2BRQxSHjyQxAhixPuMiQoehoA2MYWeSgqTTwAQ@mail.gmail.com> <20150724004343.GM84931@FreeBSD.org> <20150724004443.GC1370@lonesome.com>
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--tpyx7gKuSYt+mjHM Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Jul 23, 2015 at 07:44:43PM -0500, Mark Linimon wrote: > On Fri, Jul 24, 2015 at 12:43:43AM +0000, Glen Barber wrote: > > Even on amd64, you need to tune the system with less than 4GB RAM. >=20 > The only correct answer to "how much RAM do you need to run ZFS" is > "always more" AFAICT. >=20 There's a bit more to it than that. You *can* successfully run amd64 ZFS system with certain tunings (vfs.kmem_max IIRC), but you also need to adjust things like disabling prefetching with less than 4GB RAM (accessible to the OS). So yeah, "more RAM" is always a thing in this playing field. Glen --tpyx7gKuSYt+mjHM Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVsYujAAoJEAMUWKVHj+KTlWcP/RxYnX7Tkgs02S8cvzyOLQ4k lgAgNXF0Dvb4PBwaN1ZOPtRT1m/hzStzwM5nlyH4+g63H/C64WlF8++xJaSVTByr XgAEqJyeOjP0wBQYLvKfWJitXOEpr1BLyYMy/dRj1uXcNYm5X4oLIByxUGl3GJIe tUNiDdDdfxXgFMun9o4dyK/w3jYVw6uGW9tJFD/2fUGv0SMikSS7OkEylVAGL91F Q6Yb4V9ExPsfgr4WEQPVUAEeeSVpWpFyTc+r8FsPe+s3UPRcJYz7jJ4CaWg1kCRP G2EQck/VBX6TsR0JmtdHa9TP0xQSRybsQ6jc2igfq809QrFgYX39f5AwdBM+DzRE H8mBvikgJTNhr5qAzuO3b1eeyvLZArFK7rOc1m9vUxXMINRlCkH9aPvWeGiPhekh 6KEDHlFPhqGlXDI9fG838Mss9FtGW+KjSVJitvfToOBLxzmuTLkHCUbnE8FmW90s o+Yx3CvmcO6zFKjY/GMvJmzspRIOcg0Sha6dvPRAC548VQFP+utcExQPXX4cWzxV s1l9jmqICnOVw+VJncxjPf3xhv0E9c0P2ckZtDQI8ewDGTp4fKiXP5kZkK6ZqxwQ 18uvJMxuU0BaqHjqRFAd5UhCt2HlOg4bsPAj+E/yv/+0n8nZt12mK8qmqhNoC/Zo m1hUdxhX82pFlW7t58Yz =67Nj -----END PGP SIGNATURE----- --tpyx7gKuSYt+mjHM--
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