diff options
Diffstat (limited to 'ACE/performance-tests/Misc/preempt.cpp')
| -rw-r--r-- | ACE/performance-tests/Misc/preempt.cpp | 63 |
1 files changed, 29 insertions, 34 deletions
diff --git a/ACE/performance-tests/Misc/preempt.cpp b/ACE/performance-tests/Misc/preempt.cpp index 0e6edcfbc30..7e774fac3a8 100644 --- a/ACE/performance-tests/Misc/preempt.cpp +++ b/ACE/performance-tests/Misc/preempt.cpp @@ -1,35 +1,32 @@ -// $Id$ - -// ============================================================================ -// -// = LIBRARY -// performance-tests/Misc -// -// = FILENAME -// preempt.cpp -// -// = DESCRIPTION -// This is a simple test to illustrate OS thread preemption. One -// ore more high priority threads periodically (every half -// second, by default) reads the clock. They use select () to -// block for that duration. Meanwhile, a low priority thread -// continually chews up the CPU. Without preemption, the high -// priority thread won't have a chance to read the clock in a -// timely manner. -// -// At the end of the test, the actual clock read intervals by the -// high priority task(s) are printed out. With proper -// preemption, the intervals should correspond to the requested -// clock read interval. -// -// There is a -y option for the low priority thread to periodically -// yield. It shouldn't be necessary to use that option, if preemption -// is supported. It's a handy option for testing. -// -// = AUTHOR -// David L. Levine -// -// ============================================================================ + +//============================================================================= +/** + * @file preempt.cpp + * + * $Id$ + * + * This is a simple test to illustrate OS thread preemption. One + * ore more high priority threads periodically (every half + * second, by default) reads the clock. They use select () to + * block for that duration. Meanwhile, a low priority thread + * continually chews up the CPU. Without preemption, the high + * priority thread won't have a chance to read the clock in a + * timely manner. + * + * At the end of the test, the actual clock read intervals by the + * high priority task(s) are printed out. With proper + * preemption, the intervals should correspond to the requested + * clock read interval. + * + * There is a -y option for the low priority thread to periodically + * yield. It shouldn't be necessary to use that option, if preemption + * is supported. It's a handy option for testing. + * + * + * @author David L. Levine + */ +//============================================================================= + #include "ace/OS_main.h" #include "ace/ACE.h" @@ -41,8 +38,6 @@ #include "ace/OS_NS_errno.h" #include "ace/OS_NS_unistd.h" -ACE_RCSID(Misc, preempt, "$Id$") - #if defined (ACE_HAS_THREADS) || ! defined (ACE_LACKS_FORK) #if defined (ACE_HAS_STHREADS) |