Date: Mon, 28 Jul 2008 20:23:58 +0100 From: "Pegasus Mc Cleaft" <ken@mthelicon.com> To: <freebsd-hackers@freebsd.org> Subject: Kernel Memeory - AMD64 Message-ID: <002301c8f0e7$7cb7a1a0$7626e4e0$@com>
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Hello everyone,
I was wondering if you guys could comment or give guidance
to the following question: By watching the threads here and also in the CVS
commit group, I see there has been (or will be) a change to the way the
kernel addresses memory. Specifically in its ability to use memory beyond
the 2 gig boundry?
At the moment, I have increased the limits on my box by
adding the following to the /boot/loader.conf file:
vm.kmem_size_max="1073741824"
vm.kmem_size="1073741824"
I did this because of ZFS and its requirements for memory
(Just take a moment here to say thank you to the people involved in porting
ZFS to the BSD platform. I love it! And I use it all the time on my
machines) But with the recent changes to how the kernel addresses memory and
its limits, am I better off removing these entries and letting the kernel
grow is memory usage as needs be, or should I increase the limits further?
If the answer is application specific, one of the boxes is a
mysql server, Q6600 w/ 4 Gigs.. The other is a Q9450 w/ 8 Gigs of ram that
serves as my desktop machine (xorg, kde, kdevelop, etc)
Thank you in advance for your comment,
Peg
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