On 27/12/2007, Kris Douglas <[EMAIL PROTECTED]> wrote: > > > > On 26/12/2007, Ian Pascoe <[EMAIL PROTECTED]> wrote: > > > > Matt > > > > I'm surprised that a dual processor machine came with only 1 Gb of RAM - > > I thought it was more common these days to ship with 1 Gb of Ram per > > processor. > > > > However, the differences between multi core and multi processor are > > rather ambiguous as depending on the manufacturer they can mean the same > > thing! Generally speaking multi core processors share the same DIN whereas > > multi processors each have their own seperate socket. > > > > But, as long as things work, thats great - just bear in mind what Chris > > says about the fact that unless you are running multiple processes / apps, > > you won't generally see much of a difference in performance in apps, as, > > referring back to a pre Xmas posting, very few apps on Linux are multi > > threading yet. > > > > HTH > > > > E > > > > -----Original Message----- > > *From:* [EMAIL PROTECTED] [mailto: > > [EMAIL PROTECTED] Behalf Of *Kris Douglas > > *Sent:* 26 December 2007 18:44 > > *To:* British Ubuntu Talk > > *Subject:* Re: [ubuntu-uk] Dual-Core = less not more? > > > > > > > > On 26/12/2007, Matthew Macdonald-Wallace <[EMAIL PROTECTED]> > > wrote: > > > > > > Hi all, > > > > > > I was one of the many who purchased the Dell laptops when they shipped > > > here in the UK with Ubuntu pre-installed. I've got a Pentium > > > Dual-Core > > > chip (not a core-duo although I'm not sure what the difference is!) > > > installed and although /proc/cpuinfo shows both cores as seperate > > > processors, I'm really not convinced that the dual-core with 1024MB > > > RAM > > > is faster than my old 1.4GHz with 512MB RAM. > > > > > > I've got stock Gutsy installed on the laptop (upgraded from feisty > > > using > > > apt-get dist-upgrade) so if there are any packages that you think > > > would > > > be more beneficial, please let me know. > > > > > > One of the things I've stumbled upon in the forums is the possibility > > > of > > > running x64 on Core2-Duo processors - would that help me here? > > > > > > Cheers, > > > > > > Matt. > > > > > > > > > -- > > > [email protected] > > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk > > > https://wiki.kubuntu.org/UKTeam/ > > > > > > > I think there is a point where the performance just levels out. You will > > notice the difference when you run lots of apps at once. I dont know, but > > I'm running X86 on a 2x dual xeon machine with 8gb of ram, and it boots > > about the same time as my dual core 3.6ghz 2gb ram, but is much better > > on performance, when running say, lots of applications, database stuff etc.. > > > > -- > > Kris Douglas > > Softdel Limited Hosting Services > > > > Web: www.softdel.net > > Mail: [EMAIL PROTECTED] > > > > > > -- > > [email protected] > > https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk > > https://wiki.kubuntu.org/UKTeam/ > > > > > Just referring to windows here, you can assign processes specific > positions on CPU's can't you, I think it's actually set as the Affinity, > like cpu0,1,2,3,4 depending on your configuration. Is this not possible with > Ubuntu/ The Linux Kernel? > > Just wondering, normally Linux has something ahead of windows when it > comes to this sort of thing.. > > To put it into practice, say you had a dual CPU 200mhz server, running > Apache and Postgres/ MySQL (whatever you prefer) on the one chip makes it > run slowly... So you can set the affinity of the SQL server to cpu1 only > (the second cpu) and have the Apache server only running on cpu0. This in > theory would allow the apps to have 200mhz of CPU each... I imagine that's > how it works in Win, so what about Linux? Anyone? > > -- > Kris Douglas > Softdel Limited Hosting Services > > Web: www.softdel.net > Mail: [EMAIL PROTECTED] >
For Reading, research lead me to see: http://www.cyberciti.biz/tips/setting-processor-affinity-certain-task-or-process.html http://ubuntuforums.org/showthread.php?t=636521 -- Kris Douglas Softdel Limited Hosting Services Web: www.softdel.net Mail: [EMAIL PROTECTED]
-- [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.kubuntu.org/UKTeam/
