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Full Discussion: SPARCVII+ vs. T5 comparision
Operating Systems Solaris SPARCVII+ vs. T5 comparision Post 302873567 by DustinT on Tuesday 12th of November 2013 11:20:29 AM
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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LEARN ABOUT FREEBSD

pthread_multi_np

PTHREAD_MULTI_NP(3)					   BSD Library Functions Manual 				       PTHREAD_MULTI_NP(3)

NAME

     pthread_multi_np, pthread_single_np -- switch between multi- and single-threaded scheduling modes

LIBRARY

     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS

     #include <pthread_np.h>

     int
     pthread_multi_np(void);

     int
     pthread_single_np(void);

DESCRIPTION

     The pthread_single_np() function switches the process to a single-threaded mode, i.e., suspends all threads except the current.  The seman-
     tics of this function is similar to pthread_suspend_all_np(3).

     The pthread_multi_np() function switches the process to a multi-threaded mode.  The semantics of this function is similar to
     pthread_resume_all_np(3).

RETURN VALUES

     The pthread_multi_np() and pthread_single_np functions always return 0.

SEE ALSO

     pthread_resume_all_np(3), pthread_suspend_all_np(3)

AUTHORS

     This manual page was written by Alexey Zelkin <phantom@FreeBSD.org>.

BSD
								 February 13, 2003							       BSD
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