Linked by Thom Holwerda on Sat 17th Mar 2007 19:30 UTC, submitted by IdaAshley
Linux "As evidenced by major central processing unit vendors, multi-core processors are poised to dominate the desktop and embedded space. With multiprocessing comes greater performance but also new problems. This article explores the ideas behind multiprocessing and developing applications for Linux that exploit SMP."
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RE[2]: SMP is as old as the hills..
by jebb on Sat 17th Mar 2007 21:47 UTC in reply to "RE: SMP is as old as the hills.."
jebb
Member since:
2006-07-06

Hum, if this was sarcasm, I don't get it. Name one case where it makes the slightest difference for Joe User, whether both cores sit in the same socket or not?

'course if Joe User is a bearded computer science student who gets a kick out of pushing the Hypertransports of his dual-opty to the limit, you may be right.

Reply Parent Score: 2

smitty Member since:
2005-10-13

Hum, if this was sarcasm, I don't get it. Name one case where it makes the slightest difference for Joe User, whether both cores sit in the same socket or not?

Actually, dual-core is mostly superior to dual-socket because core-to-core communication is faster than socket-to-socket communication. You also get the possibility of shared caches. The downside is that each core has less available bandwidth to memory, but currently that isn't a limiting factor. In the future you could get around this by creating a link to each core just like today they go to each socket.

Reply Parent Score: 3

raver31 Member since:
2005-07-06

My point was that PC World and others are selling dual core on the one application per core thing.....
It can be done like that with dual cpus, assigning one cpu to word processing and one cput to running the system, scanning etc, but not dual core.

The differences are that each cpu has its own memory bus and data bus, so, if you had say a 3Ghz Dual core and a bord with 2x 3Ghz single core cpus, the second option would (seem) to be much faster.

Reply Parent Score: 2