-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Fri, Apr 3, 2009 at 9:30 PM, <fedora-docs-list-request@xxxxxxxxxx> wrote: Ruediger Landmann <r.landmann@xxxxxxxxxx> wrote: > > Mani A wrote: >> I had a look at some parts of >> >> http://rlandmann.fedorapeople.org/Installation Guide/en-US/html >> > Many thanks! We need eyes on this. >> "7.22.4. SMP Motherboards and GRUB >> In previous versions of Fedora there were two different kernel >> versions, a uniprocessor version and an SMP version. In Fedora 11 the >> kernel is SMP-enabled by default and will take advantage of multiple >> core, hyperthreading, and multiple CPU capabilities when they are >> present. This same kernel can run on single CPUs with a single core >> and no hyperthreading. " >> >> >> This is being repeated since FC-4-6? >> > Did the native kernel have multiprocessor support before F9? > http://docs.fedoraproject.org/release-notes/f9/en_US/sn-Kernel.html > (whatever version it was, the text should be clarified to name it > specifically) http://docs.fedoraproject.org/release-notes/fc6/en_US/sn-Kernel.html#id2840748 mentions it http://docs.fedoraproject.org/release-notes/fc5/release-notes-ISO/#id3131236 says 'There is no separate SMP kernel available for the x86_64 architecture in Fedora Core 5' > This note will become less and less relevant with each release – at what > point should we drop it though? I think it is time. Very few distros have been having different kernels for SMP and uniprocessors for 2+ years. >> "Swap should equal 2x physical RAM for up to 2 GB of physical RAM, and >> then an additional 1x physical RAM for any amount above 2 GB, but >> never less than 32 MB. >> So, if: >> M = Amount of RAM in GB, and S = Amount of swap in GB, then >> >> If M < 2 >> S = M *2 >> Else >> S = M + 2" >> >> Using this formula, a system with 2 GB of physical RAM would have 4 GB >> of swap, while one with 3 GB of physical RAM would have 5 GB of swap. >> Creating a large swap space partition can be especially helpful if you >> plan to upgrade your RAM at a later time. >> For systems with really large amounts of RAM (more than 32 GB) you can >> likely get away with a smaller swap partition (around 1x, or less, of >> physical RAM)." >> >> >> The formula is not correct. Or is this the result of some special study? >> > The formula is the current recommendation in Red Hat Enterprise Linux > (see http://kbase.redhat.com/faq/docs/DOC-15252 ) and is what anaconda > will create by default when installing Red Hat Enterprise Linux or > Fedora. I don't think we should change this recommendation unless > anaconda's behaviour changes as well. > > I think the text makes it pretty clear that this recommendation is only > indicative; it's prefaced "If you are unsure about what size swap > partition to create..." > > Do you think we need to draw more attention to this being a "rule of thumb"? Some references should be provided. On systems with SSDs swap partitions are not recommended. __________________________ Kernel Options Most if not all desktop, netbook and laptop users will need the option iommu=noaperture It should be documented. btw some parts of the draft guide have explicit instructions for RHEL Best A. Mani - -- A. Mani Member, Cal. Math. Soc -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEARECAAYFAknWoBYACgkQunMISzvdfU6pUACfQFTm4nhYVEQm4LOMHO1JD3mb 2rIAnjsn3CLs7jlxh7XGOA06VUbUQW8s =Rsf/ -----END PGP SIGNATURE----- -- fedora-docs-list mailing list fedora-docs-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-docs-list
