If you've been keeping up with our articles for a while, you might have picked up on vApus Mark I: the virtualized stress test we created for internal use at the Sizing Servers testlab.
As detailed in Johan's article, this bench consists of 3 separate applications, all of which we are very familiar with due to extensive optimization and stress testing efforts. Although we believe the results published based on this bench speak for themselves, the problem remained that it was impossible for anyone outside our lab to verify the results, seeming as how two out of three of the applications used were owned by private companies and were entrusted to our lab under rather strict conditions (distributing them to the rest of the world sadly not being one of them).
Secondly, vApus M1 being a bench that focuses on fairly heavy VM's, we feel the need to create another point of reference. One that will back up the results of the original, but with a completely different mix of VM's.
Thus began the process of creating vApus For Open Source, or vApus FOS, as we like to call it in the lab.
The idea behind vApus FOS is that the VM's can be freely distributed to any vendors that wish to...
First of all, we were pretty excited to see so many comments and votes (5000!) on our last IT poll. It is good to see that professional IT is so much alive at Anandtech.com. So yes, we should have updated this blog quicker, to keep the momentum going. The reason why this update comes rather late is -once again - that we are working on the much delayed hypervisor comparison. Hundreds of tests have already been done, but we have added more tests to check important I/O performance factors such as VMDq and iSCSI performance.
And of course, the virtualization market is evolving fast. There is a new kid on the block: KVM. Two of the three most important Linux vendors, Red Hat and Canonical, have ripped Xen out of their distributions in favor of KVM. KVM has an interesting philosophy: it simply adds two kernel modules to the Linux kernel to turn the latter into a hypervisor. As a result, KVM can leverage the huge amount of Linux drivers and the Linux kernel improvements such as power management. Still, a virtualization solution needs to mature quite a bit before it is ready. And that is more than a cliche. Xen's support for Windows VMs was for example supposed to work at the beginning of...
If you read our last article, it is clear that when your applications are virtualized, you have a lot more options to choose from in order to build your server infrastructure . Let us know how you would build up your "dynamic datacenter" and why!
...
Want to gain the upper hand on your colleagues by getting the very best performance out of ESX? AnandTech IT shares its best practices uncovered in the development of their vApus Mark I benchmark....
AMD added 2 cores to the improved AMD quad-core “Shanghai”. Which applications can take advantage of these extra cores? The answer is more interesting than you might think at first. ...
We proudly present our newest virtualization benchmarking effort: vApus Mark I. The results are quite surprising on the latest server CPUs as it paints a very different picture than VMmark. Get a second opinion on how strong or weak the different CPUs are when they are running heavy-duty virtualized applications on ESX 3.5 Update 4....
VMmark is supposedly the most important industry standard benchmark today. We investigate the confusing number of different Xeon 5570 VMmark scores and try to understand how relevant VMmark is for the IT professional who is consolidating servers....
In our last article about server CPUs, I wrote:
"the challenge for AMD and Intel is to convince the rest of the market - that is 95% or so - that the new platforms provide a compelling ROI (Return On Investment). The most productive or intensively used servers in general get replaced every 3 to 5 years. Based on Intel's own inquiries, Intel estimates that the current installed base consists of 40% dual-core CPU servers and 40% servers with single-core CPUs."
At the end of the presentation of Pat Gelsinger (Intel) makes the point that replacing nine servers based on the old single core Xeons with one Xeon X5570 based server will result in a quick payback. Your lower energy bill will pay back your investment back in 8 months according to Intel.
Why these calculations are quite optimistic is beyond the scope of this blogpost, but suffice to say that Specjbb is a pretty bad benchmark to perform ROI calculations (it can be "inflated" too easiliy) and that Intel did not consider the amount of work it takes to install and configure those servers. However, Intel does have a point that replacing the old power hungry Xeons (irony...) will...
Better hardware virtualization, a vastly improved server platform, and eight logical cores per CPU: it's no secret that the Xeon "Nehalem" X5570 is the Formula One car among the server CPUs, but how much faster is it, and more importantly, does it offer return on investment? Find out as we run real world server applications on the newest Xeon....
We compare RAID configurations of up to 16 SATA drives, up to eight SAS drives, and up to eight Intel X25-E SLC SSDs in different situations and try to find out which configuration makes the most sense for different enterprise applications. OLTP in particular has our attention: are the expensive SLC SSD drives capable of outperforming SAS RAID configurations at a lower price point?...
This article is different from the previous ones, as we have changed the methodology we use to evaluate a server CPU. Read on, and find out why we feel this is a better and more realistic approach to compare the best AMD and Intel Server CPUs....
We have emphasized
it more than once: the Nehalem architecture is all about
regaining the performance crown in servers and HPC, desktop and mobile
use were sometimes a bonus, sometimes an afterthought. Today it becomes
almost painfully obvious. Just read Anand's
thoughts about the Core i7:
"The
Core i7's general purpose performance is solid, you're looking at a 5 -
10% increase in general application performance at the same clock
speeds as Penryn"
and now look at the graph below.
Intel
has apparantely allowed HP and Fujitsu-Siemens to break the NDA on the Xeon 5570 processor for PR reasons as both companies have published SAP
numbers on a Dual Xeon 5570. The Xeon 5570 is based on the same architecture as the Core i7. It is a 2.93 GHz quadcore CPU with 4 times a 256 KB L2-cache and one huge shared 8 MB L3.
The SAP
numbers are absolutely astonishing, as Intel's dual socket is able
to outperform quad socket opteron machines. Based
on the scaling of Barcelona, we speculate that a quad Shanghai at 2.7
GHz would obtain the performance of the Dual Xeon 5570 w/o HT.The new Xeon 5570...
The last post generated some very interesting comments and questions, which I wanted to address. Unfortunately, some people misinterpreted the post as a "the best scores Nehalem and Shanghai can get in Linpack" review.
So let me make this very clear: this and the previous blogpost are not meant to be a "buyer's guide". The Nehalem desktop system and AMD "Shanghai" server are completely different machines, targeted at totally different markets. Normally, we should wait for the Xeon 5500 to run these kind of benchmarks, but consider this a preview out of curiosity.
Secondly, we were not trying to get the highest possible LINPACK scores on both architectures. We wanted to use one binary which has good optimizations for both AMD's and Intel CPU's. Fully optimized binaries won't even run on the other CPU.
Our only goal is to get an idea how the Nehalem and Shanghai architectures compare when running a "LINPACK" alike binary which is optimized to run on all machines.
Thirdly, this is not our review of course. This is a blogpost which talks about some of the tests we are doing for the review.
MKL on AMD?
Using the Intel Math...
If you've been keeping up with our articles for a while, you might have picked up on vApus Mark I: the virtualized stress test we created for internal use at the Sizing Servers testlab.
As detailed in Johan's article, this bench consists of 3 separate applications, all of which we are very familiar with due to extensive optimization and stress testing...
First of all, we were pretty excited to see so many comments and votes (5000!) on our last IT poll. It is good to see that professional IT is so much alive at Anandtech.com. So yes, we should have updated this blog quicker, to keep the momentum going. The reason why this update comes rather late is -once again - that we are working on the much delayed hypervisor...
If you read our last article, it is clear that when your applications are virtualized, you have a lot more options to choose from in order to build your server infrastructure . Let us know how you would build up your "dynamic datacenter" and why!
{poll 157:440}
...
Take two Nehalem dies, turn them 90 degrees, add a lot of system interface logic and 8 MB extra of L3-cache and you get - very oversimplified - the impressive Nehalem EX, alias "Beckton". The new Xeon MP is an impressive monster, just like it's predecessor Dunnington. Dunnington consisted of 1.9 Billion transistors, the Xeon MP based on the "Nehalem"...
We promised you a new datapoint, a new independent virtualization benchmark in "a few days". Those "few days" have become a week in good "IT at Anandtech" tradition. :-) But this wednesday, unless Murphy strikes us hard, the article will be online. It will offer a refreshing look at the virtualization performance, the result of months of work. Liz...
In our last article about server CPUs, I wrote:
"the challenge for AMD and Intel is to convince the rest of the market - that is 95% or so - that the new platforms provide a compelling ROI (Return On Investment). The most productive or intensively used servers in general get replaced every 3 to 5 years. Based on Intel's own inquiries,...
My last post generated quite a bit of discussion, some of it based on misunderstandings. In this post I'll try to make a few things more clear. In a previous post, I pointed out that there are a good indications that a dual Nehalem EP has a 40 to 100% advantage over Shanghai (depending on the application, based on the SAP and Core i7 workstation benchmarks).
If...
Now that the actual conference is behind us, and we've found our way back to the lab, it's time to finish what we started. First off, an apology for our radio silence on day 3: our schedule turned out to be quite a bit more packed than we thought it was, so finding our way to the quiet of the press room proved to be more of a hurdle than originally...
Here we are once more, blogging away after a very interesting second keynote by VMware CTO Stephen Herrod, delving a bit deeper into the actual changes being pushed into different levels of the software. At this point, the amount of information available might actually fill up an entire article, but alas, time constraints force me to keep this...
The Istanbul cores are the same as those that can be found in the AMD's latest Shanghai CPU. But the "uncore" part of Istanbul is more interesting. By now, you have probably heard about AMD's "HT-assist" technology, a probe or snoop filter. Every time a new cacheline is brought into the L3-cache of for example CPU 1 on the current Shanghai Platform, a...
Seeming as how virtualization is a technology that is still expanding exponentially, and our research is not of the kind that drops a subject once the novelty has worn off, the Belgian IT department of Anandtech is once again attending VMworld Europe, with high hopes of greatly improving our knowledge on the vast amounts of fields virtualization has...