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SPARCVII+ vs. T5 comparision

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Operating Systems Solaris SPARCVII+ vs. T5 comparision
# 1  
Old 11-11-2013
SPARCVII+ vs. T5 comparision
Hello, I need migrate our applications from M-series to T-series. I would like compare two different SPARC processors - SPARCVII+ from Fujitsu and T5 from Oracle. I found only next benchmarks:

Code:
M8000:

_http://c970058.r58.cf2.rackcdn.com/individual_results/Oracle/Oracle_M8000-16_1TB_TPCH_ES_060311_V3.pdf
16 SPARC64 VII+ 3000 MHz Processors, 64 cores, 128 threads, 512GB
209,533.6 QphH@1000GB

SPARC T5-4 Server:

_http://c970058.r58.cf2.rackcdn.com/individual_results/Oracle/Oracle_T5-4_3TB_TPCH_ES_060713.pdf
4 SPARC T5 3.6GHz Processors, 64 cores, 512 threads, 2TB
409,721.8 QphH@3000GB

For comparing I choosed T5-2 which has 1/2 of T5-4 performance (410k/2 QphH) and same QphH performance as M8000:
Code:
-------------------------------------------------------------------------
|			|	M8000		|	T5-2		|
-------------------------------------------------------------------------
| QphH			|	~210k		|  ~205k (1/2 of T5-4)	|
| CPUs			|	16		|	4		|
| cores per CPU		|	4		|	16		|
| threads per CPU	|	8		|	128		|
| total cores		|	64		|	32		|
| total threads		|	128		|	256		|
-------------------------------------------------------------------------

So question is, if I will have full filled our M8000 box with 16 CPUs and migrate it to T5-2 Server, it will be enough for CPU performance?
Last edited by olibertu; 11-12-2013 at 12:21 AM.. Reason: Please use code tags
# 2  
Old 11-11-2013
Just setup a meeting with your Oracle rep. They have some internal tools to evaluate your current needs and estimate the hardware you need to replace it.
# 3  
Old 11-11-2013
Note that the T (Niagara) architecture runs the CPU cores with half the given clock speed i.e. 1.8 GHz.
Normal single-thread applications run slower than on the M series.
# 4  
Old 11-12-2013
Quote:
Originally Posted by MadeInGermany
Note that the T (Niagara) architecture runs the CPU cores with half the given clock speed i.e. 1.8 GHz.
Normal single-thread applications run slower than on the M series.
Could you elaborate on that? http://www.oracle.com/us/products/se...ds-1922871.pdf specifies the CPU frequency as 3.6GHz...
# 5  
Old 11-12-2013
I have run single-thread integer and FPU benchmarks on Niagara T1 and T2 processors,
and compared with various other Sparc systems (M series and older Sparc Fire systems).
The factor (execution speed versus clock rate) was about 0.5.
# 6  
Old 11-12-2013
Assuming that newest SPARC processors (T4 and T5) behave like T1, which is 8 years old, is unwise in my opinion. T4 is known for it's boost for single threaded processing (which T5 inherited).
# 7  
Old 11-12-2013
Quote:
Originally Posted by bartus11
Assuming that newest SPARC processors (T4 and T5) behave like T1, which is 8 years old, is unwise in my opinion. T4 is known for it's boost for single threaded processing (which T5 inherited).
Agreed... And the statement that the server runs the cpu at half the post speed isn't correct. Rather, we could say that the observed workload resulted in half the performance per cycle on the T series tested versus the M series tested.

The older T series had a strong single threaded performance penalty. The newer stuff is a lot more flexible and can deliver better single threaded performance than a comparable M series.
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