Target Market
The UltraSPARC T1 microprocessor is unique in its strength and weaknesses, and as such is targeted at specific markets. Rather than being used for high-end number-crunching and ultra-high performance applications, the chip is targeted at network-facing high-demand servers, such as high-traffic web servers, and mid-tier Java, ERP, and CRM application servers, which often utilize a large number of separate threads. One of the limitations of the T1 design is that a single floating point unit (FPU) is shared between all 8 cores, making the T1 unsuitable for applications performing a lot of floating point mathematics. However, since the processor's intended markets do not typically make much use of floating-point operations, Sun does not expect this to be a problem. Sun provides a tool for analysing an application's level of parallelism and use of floating point instructions to determine if it is suitable for use on a T1 or T2 platform.
In addition to web and application tier processing, the UltraSPARC T1 may be well suited for smaller database applications which have a large user count. One customer has published results showing that a MySQL application running on an UltraSPARC T1 server ran 13.5 times faster than on an AMD Opteron server.
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