Over the past months server vendors have been announcing benchmark results for systems incorporating Intel’s high-end x86 CPU, the E7, with HP trumping all existing benchmarks with their recently announced numbers (although, as noted in x86 Servers Hit The High Notes, the results are clustered within a few percent each other). HP recently announced new performance numbers for their ProLiant DL980, their high-end 8-socket x86 server using the newest Intel E7 processors. With up to 10 cores, these new processors can bring up to 80 cores to bear on large problems such as database, ERP and other enterprise applications.
The performance results on the SAP SD 2-Tier benchmark, for example, at 25160 SD users, show a performance improvement of 35% over the previous high-water mark of 18635. The results seem to scale almost exactly with the product of core count x clock speed, indicating that both the system hardware and the supporting OS, in this case Windows Server 2008, are not at their scalability limits. This gives us confidence that subsequent spins of the CPU will in turn yield further performance increases before hitting system of OS limitations. Results from other benchmarks show similar patterns as well.
Key takeaways for I&O professionals include:
Expect to see at least 25% to 35% throughput improvements in many workloads with systems based on the latest the high-performance PCUs from Intel. In situations where data center space and cooling resources are constrained this can be a significant boost for a same-footprint upgrade of a high-end system.
For Unix to Linux migrations, target platform scalability continues become less of an issue.
I don’t understand why firms spend millions of dollars on Java application servers like Oracle Weblogic or IBM WebSphere Application Server. I get why firms spend money on Red Hat JBoss -- they want to spend less on application servers. But, why spend anything at all? Apache Tomcat will satisfy the deployment requirements of most Java web applications.
Your Java Web Applications Need A Safe, Fast Place To Run
Most Java applications don’t need a fancy container that has umpteen features. Do you want to pay for a car that has windshield wipers on the headlights? (I wish I could afford it.) Most Java applications do not need these luxuriant features or can be designed not to need them. Many firms do, in fact, deploy enterprise-class Java web applications on Apache Tomcat. It works. It is cheap. It can save tons of dough.
Expensive Java Application Servers Sometimes Add Value
There is a need for luxury. But, you probably don’t need it to provide reliable, performant, and scalable Java web applications. Application server vendors will argue that:
You need an application container that supports EJBs. EJB3 fixed the original EJB debacle, but why bother? Use Spring, and you don’t need an EJB-compliant container. Many applications don’t even need Spring. EJBs are not needed to create scalable or reliable applications.