Re: F9 and move to Hyperthreaded processor

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 11/15/2008 06:03 PM, Bob Kinney wrote:
Hello--

I am running F9 on an older box that has a Pentium 4 non-hyperthreaded processor--it works great.

I want to plop in a hyperthreaded processor--let's assume here that the processor and mainboard are compatible and working fine together.

When I fire this system back up, how will the kernel react?
I have read that SMP is built into the kernel already, so will it simply
pick up on the "extra" processor and begin working in hyperthreaded/dual
processor mode or will this be an OS rebuild event (or something in between)?
Be wary of hyperthreading. AFAIK, Intel no longer supports this feature in their processors. First, there are a number of applications that actually suffer from hyperthreading. For instance, my company's product runs significantly slower on a system with hyperthreading enabled. So, make sure you runs some tests. It was a good idea to extend the old single core processors. A colleague of mine also found some bugs in the microcode.

--
Jerry Feldman <gaf@xxxxxxx>
Boston Linux and Unix
PGP key id: 537C5846
PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB  CA3B 4607 4319 537C 5846


Attachment: signature.asc
Description: OpenPGP digital signature

-- 
fedora-list mailing list
fedora-list@xxxxxxxxxx
To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list
Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [Fedora Magazine]     [Fedora News]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Maintainers]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Legacy]     [Fedora Desktop]     [Fedora Fonts]     [ATA RAID]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [SSH]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Centos]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Tux]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Asterisk PBX]     [Fedora Sparc]     [Fedora Universal Network Connector]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux