Intel's Xeon E5-2600 V2: 12-core Ivy Bridge EP for Servers
by Johan De Gelas on September 17, 2013 12:00 AM ESTVirtualization Performance: ESXi 5.1 & vApus FOS Mark 2 (beta)
We introduced our new vApus FOS (For Open Source) benchmark in our review of the Facebook "Open Compute" servers. In a nutshell, it is a mix of four VMs with open source workloads: two PhpBB websites (Apache2, MySQL), one OLAP MySQL "Community server 5.1.37" database, and one VM with VMware's open source groupware Zimbra 7.1.0.
As we try to keep our benchmarks up to date, some changes have been made to the original vApus FOS Mark. We've added more realistic workloads and tuned them in accordance with optimizations performed by our industry partners.
With our latest and greatest version (a big thanks to Wannes De Smet), we're able to:
- Simulate real-world loads
- Measure throughput, response times, and energy usage for a each concurrency
- Scale to 80 (logical) core servers and beyond
We have a grouped our different workloads into what we call a 'tile'. A tile consists of four VMs, each running a different load:
- A phpBB forum atop a LAMP stack. The load consists of navigating through the forum, creating new threads, and posting replies. There are also large res pictures on the pages, causing proper network load.
- Zimbra, which is stressed by navigating the site, sending emails, creating appointments, adding and searching contacts, etc.
- Our very own Drupal-based website. We create new posts, send contact emails, and generate views in this workload.
- A MySQL database from a news aggregator, loaded with queries from the aggregator for an OLAP workload.
Each VM's hardware configuration is specced to fit each workload's needs. These are the detailed configurations:
| Workload | CPUs | Memory (GB) | OS | Versions |
|---|---|---|---|---|
| phpBB | 2 | 4 | Ubuntu 12.10 | Apache 2.2.22, MySQL server 5.5.27 |
| Zimbra | 4 | 4 | Ubuntu 12.04.3 | Zimbra 8 |
| Drupal | 4 | 10 | Ubuntu 12.04.2 | Drupal 7.21, Apache 2.2.22, MySQL server 5.5.31 |
| MySQL | 16 | 8 | Ubuntu 12.04.2 | MySQL server 5.5.31 |
Depending on the system hardware, we place a number of these tiles on the stressed system to max it out and compare its performance to other servers. Developing a new virtualization benchmark takes a lot of time, but we wanted to give you our first results. Our benchmark is still in beta, so results are not final yet. Therefore we only tested one system, the Intel system, using three CPUs.
Intel reports that the Xeon E5-2697 v2 is 30% faster than the Xeon E5-2690 on SPECvirt_sc2010. Our current benchmark is slightly less optimistic, however it is pretty clear that the Ivy Bridge based Xeons are tangibly faster.
We also measured the power needed to run the three tiles of vApusMark FOS 2013 beta. It is by no means realistic, but even then, peak power remains an interesting metric since all CPUs are tested in the same server.
According to our measurements, the Xeon E5 2697 v2 needs only 85% of the peak power of the Xeon E5-2690. That is considerable power savings, considering that we get 22% more throughput. Also note that the virtualization improvements (vApic, VT-d large pages) are not implemented in ESXi 5.1.
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Kevin G - Tuesday, September 17, 2013 - link
Odd that Intel went the 3 die route with Ivy Bridge-EP. It was no surprise that the lowend would be a variant of the 6 core Ivy Bridge-E found in the Core i7-4900 series. Apple leaked that the line up would scale to 12 cores. The surprise is a native 10 core part and the differences between it and the 12 core design.Judging from the diagrams, Intel altered its internal ring bus for connecting cores. One ring goes orbits around all three columns of cores while another connects two columns. Thus the cores in the middle column have better latency for coherency as they have fewer stops on the ring bus to reach any core. The outer columns should have similar latency than the native 10 core chip for coherency: fewer cores to stop but longer traces on the die between columns.
Not disclosed is how the 12 core chip divides cache. Previously each core would have a 2.5 MB of L3 cache that was more local than the rest of the L3 cache. The middle column may have access to L3 cache on both sides.
The usage of dual memory controllers on the 12 core die is interesting. I wonder what measurable differences it produces. I'd fathom tests with a mix of reads/writes (ie databases) would show the greatest benefit as a concurrent read and write may occur. In a single socket configuration, enabling NUMA may produce a benefit. (Actually, how many single socket 2011 boards have this option?)
madmilk - Tuesday, September 17, 2013 - link
It looks like each ring is connected to two columns. One ring goes around all three, but does not connect to the center column.JlHADJOE - Tuesday, September 17, 2013 - link
I'm guessing the 12-core might see action in the 8P segment, which is well overdue for an update.psyq321 - Tuesday, September 17, 2013 - link
There will be 15-core E7 8xxx v2 CPUs based on the same IvyTown architecture.As Intel is not showing the die-shot of a 12 core Ivy EP, I wonder if the 15-core EX and 12-core EP are using the same 3x5 die.
Kevin G - Tuesday, September 17, 2013 - link
The memory controller interfaces are different between the Ivy Bridge-EP and Ivy Bridge-EX. The EP uses DDR3 in all of its forms (vanilla, ECC, buffered ECC, LR ECC) where as the EX version is going to use a serial interface similar in concept to FB-DIMMs. There will be two types of memory buffers for the EX line, one for DDR3 and later another that will use DDR4 memory. No changes need to be made to the new EX socket to support both types of memory.Brutalizer - Tuesday, September 17, 2013 - link
I would have expected this newest Intel 12-core cpu to perform better. For instance, in Java SPECjbb2013 benchmarks, it gets 35,500 and 4,500. However, the Oracle SPARC T5 gets 75.700 and 23.300 which totally demolishes the x86 cpu. Have not the x86 cpus improved that much in comparison to SPARC? The x86 still lags behind?https://blogs.oracle.com/BestPerf/entry/20130326_s...
JohanAnandtech - Tuesday, September 17, 2013 - link
Be careful when you compare inflated, for marketing purposes results with independent "limited optimization" results ;-)Phil_Oracle - Friday, February 21, 2014 - link
What do you mean by inflated for marketing purposes? SPECjbb2013 is clearly a real world, recent benchmark that’s full audited by all vendors on the SPEC committee. If you make such claims, surely you have some evidence?extide - Tuesday, September 17, 2013 - link
Dont forget those T5's run at TDP's in the 200-300W range... If you clocked up one of these babies to those power levels I am sure it would be >= to the T5.Kevin G - Tuesday, September 17, 2013 - link
TDP's are indeed higher on the SPARC side but not as radically as you indicate. Generally they do not consume more than 200W. (Unfortunately Oracle doesn't give a flat power consumption figure for just the CPU, this is just an estimate based upon their total system power calculator. For reference, the POWER7 is 200W and the POWER7+ is 180W.)