Thursday Oct 25, 2012
Tuesday Nov 03, 2009
By Amir Javanshir on Nov 03, 2009
Did you ever have a performance problem and not know where to start looking? Well, who didn't? In such a situation, it is important to perform a proper monitoring of the system and resist the immediate urge to blame the processing power --the storage subsystem is often overlooked. Now that I spoiled the suspense giving away the answer, give me 5 minutes to illustrate this with a typical example. Why typical? Because this is a case I meet quite often with startup companies who rightly concentrate on their core business and not on their IT infrastructure --that's what we are here for.
One of our partners, Squid Solutions, recently reported a performance problem with an Oracle database; they had engaged our team as part of the Sun Startup Essentials support program. Squid Solutions makes a software called Nautilus that performs intensive analytics on database systems, whatever their kind or size. They call Nautilus an SQL Knowledge Engine because it models data and business knowledge, and then automatically generates SQL code to execute the data processing tasks. Nautilus is sold as a service performed by Squid's engineers as Customer Intelligence projects.
So, Squid Solutions had purchased a brand-new Sun
server --quad-core Intel Xeon with 4 GB of RAM, running Solaris 10--,
and was experiencing poor performance --much lower than their old
system of previous generation-- when executing a read-n-write intensive
workload on the database. When I first got on the server, something
jumped right to my eyes…
Thursday Sep 10, 2009
By Frederic Pariente on Sep 10, 2009
"Thanks to Sun technology, we are continuing to bring innovative identity management solutions to market and driving growth."
Hervé Prot, CEO, Symeos
Specialized in Web services security, Symeos provides online identity management, federated authentication services and single sign-on technologies for customers across multiple industries, including banking and finance. With the support of Sun, Symeos has developed a new scalable identity management product called EGO to support the more than 10 million expected users.
Read the whole story at http://www.sun.com/customers/servers/symeos.xml to learn how the combinaison of Sun systems, storage and software reduced the Symeos development cost by 60%, delivered a 99.999% infrastructure availability and improved Web application server performance by 92%. Symeos is a member of the Sun Startup Essentials program.
Wednesday Jan 14, 2009
By Frederic Pariente on Jan 14, 2009
So our partner was experiencing poor performance and blocking situations under high load (280 users, 16M files, 15 server instances) with Perforce Server 2006.2 when running off a Sparc V440 server, Solaris 10 and UFS filesystem --with logging enabled. Benchmark results at the 2003 Perforce User Conference had already pointed out the low performance of UFS with Perforce, where synchronous directory updates are a key factor of performance. Linux performs better because it executes directory updates asynchronously --at the risk of data loss, of course. Our partner rather wanted to run off a more reliable Solaris Sparc server --the source code repository and management system is the number one mission-critical application in a software house--, tuned the kernel parameter segmap_percent to 80 but that yields very limited gains in Solaris 10. At that point, we offered to test ZFS, the novel filesystem introduced in Solaris 10.
We benchmarked Perforce Server (P4D) 2007.2 on a Sun Fire X4200 server and …[Read More]
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