Dual Core Linux Performance: Two Penguins are Better than One
by Kristopher Kubicki on July 1, 2005 5:55 AM EST- Posted in
- Linux
Multitasking Scenario 1: DVD Transcoding
Ripping DVDs on Linux is one of the applications Linux really does well at - if you don't mind getting past the pretty GUI of DVD Shrink or a similar application. Ripping DVDs in general is fairly common for any desktop regardless of OS, and checking mail while ripping a disc can inflict havoc sometimes. The following test attempts to mirror Anand's Windows benchmarks on Linux and is very comparable to the Windows alternatives.
- Open FireFox 1.0.4 and load all 5 web pages. We chose 5 pre-downloaded pages from various sites like AnandTech, CNN and ESPN
- Open XMMS and start playing a Nine Inch Nails CD ripped to Ogg
- Open Thunderbird for news
- Login to our news server and start downloading headers for our subscribed news groups
- Open dvd::rip
- Start backup of Star Wars Episode VI - Return of the Jedi. All default settings
Again the emphasis is not particularly whether or not one system is capable of finishing the DVD backup faster than the other, but whether or not the system is still useable while doing so. We might be pushing the load of our system a bit far - but a machine that can rip DVDs fast but can't play music at the same time is effectively useless to us. Like Anand's test, the vob files were already placed on the hard drive to eliminate the DVD drive bottleneck. We have instructed dvd::rip to reduce our vobs from 7.5GB with transcoding to 4.5GB.
Although the load from our other application is not substantial, the combination of several low intensity applications and the introduction of a maximum load application (dvd::rip) end up bringing our single core platforms to a halt. The results of this benchmark were eerily similar to Anand's Windows benchmark, and the same culprits are pretty much to blame. Even if Linux might have a leg up on Windows' scheduler, no amount of clever preempting can beat a second processor core.
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juhl - Friday, July 1, 2005 - link
I see that "Norton AntiVirus 2004" is listed with "No Suggestions yet" in the "Linux Application" column. I'd like to make a suggestion : ClamAV - ClamAV is a very capable free virus scanner that runs on Linux - check it out at http://www.clamav.net/Hacp - Friday, July 1, 2005 - link
He clearly stated that this test was based on the best bang for the buck. For all of you who wanted to see tests with higher end processors, you should have stopped reading the article and waited for one that met your needs. Don't complain and ask for stuff that the article was not designed to inform us about.fishbits - Friday, July 1, 2005 - link
Why bother to test the 840 D and draw no conclusions about it? And can you at least fix the price you quote in the one-sided swipe at the X2? I've given up on your explaining why the price of the 840 isn't also "paying through the nose," but at least fix the obvious error either in the text or the price list above it."we have left a lot of not-so-subtle hints as to our feelings concerning performance between the two"
Ah, you were talking about Windows and Linux there. Fits for CPUs too in this case.
semo - Friday, July 1, 2005 - link
listen upeveryone who needs the anandtech next gen console articles just email me. i printed them out to read in the bus/train and i can make some scans.
semo.pz@gmail.com
Avalon - Friday, July 1, 2005 - link
You guys need to remember that this is Linux, so for everyone out there hollering that this article contradicts all the others out there that you read, all the others out there that you did read were most likely Windows based.DrMrLordX - Friday, July 1, 2005 - link
I agree that including only the X2 4200+ is a mistake. For ages, we saw benchmarks of new AMD cpus vs every Intel proc in the field, regardless of price. Kubicki shows up and insists on culling all AMD cpus from the lineup except one priced similarly(or even priced lower than) the Intel offerings in the test. I remember his initial, and rather controversial, article in which he did Linux benchmarks with a 3.6 ghz P4 vs a A64 3500+ Newcastle. Stupid! Where's the 4400+ and 4800+? If you don't have the hardware, DON'T DO THE REVIEW. If AMD has superior processors out at a much higher price, that's because AMD has better chips right now, and they damn well ought to be included in the review as well. Throw in an 840EE if you're so inclined.FURTHERMORE, where are the single-app tests and dual-app tests? All we have are contrived multitasking tests. This is about 1/3rd of the entire content of Anandtech's initial X2 review in a Windows environment. The Pentium Ds don't look so great when you put them into a scenario in which it's running one or two apps alone. Funny how Kubicki neglected to run any such tests in this article.
This article has too little hardware, and too few tests. Thumbs down.
KristopherKubicki - Friday, July 1, 2005 - link
Where do you see that? It should be 3.3.4Kristopher
allanw - Friday, July 1, 2005 - link
gcc3.4.5? That doesn't even exist! :)xtknight - Friday, July 1, 2005 - link
#39 - I meant why?KristopherKubicki - Friday, July 1, 2005 - link
xtknight: Yes.Kristopher