A Look at Solaris 10 and Sun's Dual Core Fire V40z
by Kristopher Kubicki on June 29, 2005 4:00 PM EST- Posted in
- Systems
Compiling
We put a particular emphasis on compiling because it stresses the entire system (hard drive, processor and memory) but also because any *nix user knows, compiling is no fun on a slow machine.
GNU Make 3.79.1 / GCC 3.4.2
While GCC isn't multithreaded, we can run multiple jobs using the -j command in make. Below, you can see the significant improvement on performance going from 1 to 3 to 5 jobs. We used the commands as below to compile the Linux 2.6.4 kernel from kernel.org. The kernel is set for a cross-compilation of a default x86_64 machine:
# yes "" | make config
# time make -jX
There were minor advantages of the Solaris compilation over the SLES one. Like most of our other tests, as our compilation moved closer to nine jobs, the reduction in processing time was not quite linear. We do see considerable improvements in speed, but we really aren't getting all of the bang for our buck.
We also threw in some compile tests of entire GCC base, which take significantly longer than the Linux kernel to compile.
You'll notice pretty much the same problems from the Linux kernel compilation test; scaling becomes an issue as we increase the number of jobs. We see a 43% performance increase over the quad Opteron 250 V40z; certainly impressive but we would like to see more.
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Den - Thursday, June 30, 2005 - link
Interesting article, I am confused why you are dissapointed in the GCC complile time though. The dual core machine took 369 seconds (with 9 jobs) and the single took 603.18 seconds (with 5 jobs). 603.18/369=1.635 or 63.5% faster which is well in the 50-80% range. Your article says 43% faster, so maybe the GCC compile conclusion is based on a typo?Kilim - Thursday, June 30, 2005 - link
I saw the title to the PS3/XBOX article. It was a different one than the original article from last week. I clicked on it to read it and nothing showed up. It was an article critical of the CPU's on the two systems I believe. Matbe Anand find some insider stuff that was only limited to a few people inside MS. If so, I think the potential rewards of protecting the source is much better long term than getting them in trouble and burning a bridge. Along with the long term effects of insiders trusting Anand.jwbaker - Thursday, June 30, 2005 - link
You can no longer get v20z via ebay. I managed to buy a half-dozen of them for $1200-$1500 each, although I admit I had to collude with another buyer to do so. Probably Sun has enough traction with the v\d+z series that they no longer need the eBay channel.The only beef I have with the v-series is Sun can ben recalcitrant about supplying the voltage regulator modules. In the v20z there are four removable VRMs and if you bought a single-CPU machine, you only get 2. Additional VRMs sell in pairs for $175 but the lead time is indeterminant and sometimes very long.
Houdani - Thursday, June 30, 2005 - link
32: The article was pulled in order to protect one of the anonymous sources (see comment #10).hondaman - Thursday, June 30, 2005 - link
Actually, no its not. RHEL is by far and away more widely distributed, and more likely to show results to the people who can most relate to this review.finbarqs - Thursday, June 30, 2005 - link
i did read the comments, but i still don't know why it was taken down... it just said that it wasn't up to kris to take the article down.Houdani - Thursday, June 30, 2005 - link
30: What's with the hate?And it was quite obvious to me there were multiple sources.
Questar - Thursday, June 30, 2005 - link
So that article was based upon one source?!?!translation: It was crap, our source was an idiot.
yacoub - Thursday, June 30, 2005 - link
Is there no performance increase seen with PC3200 RAM over PC2700?PrinceXizor - Thursday, June 30, 2005 - link
If whomever is really worried about protecting his "insider" source, you might want to contact Google to have them clear the article from their cache (I don't even know if that's possible).P-X