Processor Scalability and Linux

Joshua C. joshuacov at
Sun Aug 8 15:12:11 UTC 2010


I’ve been planning on buying a new machine but I’m not that sure what to take.

We’ve been seeing test and reviews on the internet between amd and
linux. I can say that when it comes to pure (single) core apps then
intel might have the lead. When it comes to scalability then amd is on
the move. You can check some recent reviews between i5–750/760 and
1055t/1090t for this. I DO NOT want to start a one–is–better
discussion here.

We know that in the windows world most of the apps aren’t optimized
for multicore processers. I think the windows OS isn’t optimized
either. Therefore the discussion goes down to “what are you going to
do with it? If you work with video (photoshop) then amd, else  – maybe

However I want to ask how well linux scales on multicore processors. I
know that maybe more that 90% of all internet servers are running with
some version of linux. But this doesn’t mean that linux scales better
than windows, because maybe the costs are at play here – Free (as in
Freedom) vs. $$. Most of the linux apps are compiled with GCC 4.xx.
Therefore it goes down to how well GCC is optimized for a multicore

My machine also must satisfy some other criteria:

1.) future–proof (that’s why an amd 6–core ???)
2.) must be environmental friendly (less watts) (that’s why an intel)
3.) good linux support (I’ll put intel here because I think their
overall support is better than amd. Remember the SB850 and how fast
amd responded? What about ati?)

Therefore I’m asking if a 6–core amd makes more sense in linux than in
windows? How well does linux scales?


PS. I’ll be happy to see some links with some results to support your answers.

More information about the users mailing list