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The files in this directory support controlled benchmarking of the ACE
synchronization mechanisms.
These mechanisms include:
. Mutexes
. Reader/writer locks
. Condition variables
. Semaphores
. Tokens
. Adaptive lockings
There are additional tests that measure the memory bandwidth under the
following conditions:
. User memory-to-memory copying of data within a single thread
. User memory-to-kernel-to-user memory copying via pipes
between separate processes, as well as between separate
threads in the same process
There are many options available for this module that can be put into
svc.conf files. See the Performance_Test_Options.[Chi] file for more
details. Some reasonable options to use to run the tests are:
-v -B -s 15
-v -n 4 -t 4 -s 15
You should experiment with other options as you see fit. Note that on
Solaris, you should always make sure that you have more than 1 LWP (by
using either the -B or the -n options) since otherwise the program may
get into an infinite loop due to the semantics of SunOS unbound
threads... (This may no longer be the case.)
Available Options in Performance_Test module:
=============================================
Thread Creation:
----------------
-B: Create thread with THR_BOUND
-D: Create thread with THR_DETACHED
-N: Create thread with flag THR_NEW_LWP
-n: Set # of lwp's (default is 0)
-t: Set # of threads contending the lock (default is 4)
Run Test:
---------
-s: Set testing duration (in seconds, default is 100)
-T: Enable/disable tracing.
Misc:
-----
-p: Toggle whether summary is printed
-e: Perform eager exit (without cleaning up)
-M: Set message size in pipe_[proc|thr]_test
Reserved Flags:
---------------
-a: Not used. (do_ack ???)
-A: Not used. (set rendezvous point)
-c: Not used. (# of connections)
-C: Not used. (Toggle calculate checksum)
-d: Not used. (Enable debugging)
-F: Not used. (Free memory)
-g: Not used. (generate data ??)
-H: Not used. (set high water mark)
-i: Not used. (# of iterations)
-L: Not used. (set low water mark)
-l: Not used. (set initial queue length)
-m: Not used. (set mapped file name)
-P: Not used. (set consecutive ports)
-S: Not used. (set service_entry ???)
-u: Not used. (use udp)
-v: Not used. (set display verbosely)
-X: Not used. (Use xdr conversion)
-Z: Not used. (Do zero copy)
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