10-01-2008
follow up on otheus code
Thanks for the code, when I ran it I got this:
2.6.9/Xeon/3.2 MHz
(3 runs)
129186.76 semop/s (8784700/68) [100]
129367.65 semop/s (8797000/68) [100]
129257.35 semop/s (8789500/68) [100]
SCO/Xeon/3.2 MHz
(3 runs)
527641.18 semop/s (8969900/17) [100]
564212.50 semop/s (9027400/16) [100]
535800.00 semop/s (9108600/17) [100]
I see SCO is capable of doing roughly 3 times more semop/s than Linux.
BTW, the h/w is identical, I believe I have it posted in this looong thread.
For Linux, I will re-post here s/w versions:
Fedora 2.6.9
gcc - ver.3.4.3
ldd - ver. 2.3.5
glibc - ver 2.3.5
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LEARN ABOUT SUNOS
semaphore.h
semaphore.h(3HEAD) Headers semaphore.h(3HEAD)
NAME
semaphore.h, semaphore - semaphores
SYNOPSIS
#include <semaphore.h>
DESCRIPTION
The <semaphore.h> header defines the sem_t type, used in performing semaphore operations. The semaphore can be implemented using a file
descriptor, in which case applications are able to open up at least a total of {OPEN_MAX} files and semaphores. The symbol SEM_FAILED is
defined (see sem_open(3RT)).
Inclusion of the <semaphore.h> header can make visible symbols defined in the headers <fcntl.h> and <sys/types.h>. See fcntl.h(3HEAD) and
types.h(3HEAD).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
fcntl.h(3HEAD), types.h(3HEAD), sem_destroy(3RT), sem_getvalue(3RT), sem_init(3RT), sem_open(3RT), sem_post(3RT), sem_timedwait(3RT),
sem_unlink(3RT), sem_wait(3RT), attributes(5), standards(5)
SunOS 5.10 10 Sep 2004 semaphore.h(3HEAD)