Mission Critical Computing Blog
Your source for the latest insights on HP Integrity, mission critical computing, and other relevant server and technology topics from the BCS team.

HP Integrity and balanced performance, part 2

Last week I commented on balanced performance and HP Integrity.  I was still very interested in hearing about HP Integrity users' experiences with application performance and system I/O.  Please continue to send comments back to me.  I am eager to find out about how others have observed relative system performance compared to SPARC and POWER-based servers.


One of the other areas of performance that I have observed for Itanium-based servers is in the area of application latency.   Within a single server, latency has to do with the amount of time it takes for an application to execute a process and respond.  It can vary quite a bit between hardware platforms.  Application vendors (such as SAP) and certain industries (such as Banking) set SLAs for latency and expect the hardware vendor to meet those criterea.  A good way to find out about latency is to compare two different servers running the exact same workload.  When this is done in a real world test it sometimes surprises customers.  The results are not always what were expected.  Even more importantly, relative latency is often a good indicator of  how a system would perform under heavy workload conditions.  There is a good possiblity that if you test a number of differenent systems, the server with the lowest latency will also be the one that will do well in peak batch or query workload scenarios.  While publicly available benchmarks can give an indication of latency, real-world testing is the only way to truly find out and compare. 


Intel Itanium-based servers have always done well against both Sun and IBM servers when sandbox tests are run and latency is evaluated.  Probably the most frustrating thing I hear is when a customer decides not to buy HP Integrity servers becauese the other vendor's server had 'twice' the clock speed or a 'higher' industry benchmark number.  Those are just not the metrics to use when comparing application performance.  HP Integrity servers have very, very good real-world application performance - which many users have found out. 


Next time I will talk about some of the system design characteristics of the HP Integrity server and Itanium processor that help improve applicaiton performance.  


 

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About the Author(s)
  • I work as a Master Architect in HP Servers R & D group. I work with teams spread across the lab and outside to build solutions which are highly available on HP-UX, OpenVMS and Mission Critical Linux platforms. In particular I contribute to develop HP Serviceguard clusters, HP-UX Security and Middleware products. I have been with HP for last 17 years and have exposure to HA/DR field from both R & D and customer perspectives.
  • Kirk Bresniker is the Vice President/Chief Technologist for HP Business Critical Systems where he has technical responsibility for all things Mission Critical, including HP-UX, NonStop and scalable x86 platforms. He joined HP in 1989 after graduating from Santa Clara University and has been an HP Fellow since 2008.
  • I’m the worldwide marketing manager for HP NonStop. I’ll be blogging and tweeting out news as it relates to NonStop solutions – you can find me here and on twitter at @CarolynatHP
  • Cynthia is part of the HP ExpertOne team. ExpertOne offers professional IT training and certifications from infrastructure refresh to areas that span across the datacenter like Cloud and Converged Infrastructure.
  • Hi, I work on the HP Servers team as HP-UX worldwide product marketing manager. I´m interested in how customers use our technology and will be blogging about their stories and on how our products evolve to help their businesses be always on.
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  • Joe Androlowicz is a Technical Communications and Marketing manager in HP’s NonStop Product Division. Joe is a 25 year journeyman in information systems design, instructional technologies and multimedia development. He left Apple Computer for Tandem Computers to help launch G03 and hasn’t looked back yet. He previously managed the program management team for the NonStop Education and Training Center and drove the development and growth of the NonStop Certification programs.
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  • Greetings! I am on the HP Enterprise Group marketing team. Topics I am interested in include Converged Infrastructure, Converged Systems and Management, and HP BladeSystem.
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  • Wendy Bartlett is a Distinguished Technologist in HP’s NonStop Enterprise Division, and focuses on dependability – security and availability - for the NonStop server line. She joined Tandem in 1978. Her other main area of interest is system architecture evolution. She has an M.S. degree in computer science from Stanford University.
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