diff options
Diffstat (limited to 'ACE/ace/High_Res_Timer.h')
| -rw-r--r-- | ACE/ace/High_Res_Timer.h | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/ACE/ace/High_Res_Timer.h b/ACE/ace/High_Res_Timer.h index ff4d544159b..6c94f3566d3 100644 --- a/ACE/ace/High_Res_Timer.h +++ b/ACE/ace/High_Res_Timer.h @@ -29,7 +29,7 @@ ACE_BEGIN_VERSIONED_NAMESPACE_DECL * * @brief A high resolution timer class wrapper that encapsulates * OS-specific high-resolution timers, such as those found on - * Solaris, AIX, Win32/Pentium, and VxWorks. + * Win32/Pentium, and VxWorks. * * Most of the member functions don't return values. The only * reason that one would fail is if high-resolution time isn't @@ -58,9 +58,7 @@ ACE_BEGIN_VERSIONED_NAMESPACE_DECL * This is probably not a problem profiling code, but could be * on if the high resolution timer class is used to initiate * actions after a "long" timeout. - * On Solaris, a scale factor of 1000 should be used because its - * high-resolution timer returns nanoseconds. However, on Intel - * platforms, we use RDTSC which returns the number of clock + * On Intel platforms, we use RDTSC which returns the number of clock * ticks since system boot. For a 200MHz cpu, each clock tick * is 1/200 of a microsecond; the global_scale_factor_ should * therefore be 200 or 200000 if it's in unit/millisecond. @@ -75,8 +73,6 @@ ACE_BEGIN_VERSIONED_NAMESPACE_DECL * you query for your @c timer.stop() value might not be the one * you queried for @c timer.start(). Its not clear how much * divergence there would be, if any. - * This issue is not mentioned in the Solaris 2.5.1 gethrtime - * man page. * A RDTSC NOTE: RDTSC is the Intel Pentium read-time stamp counter * and is actualy a 64 bit clock cycle counter, which is increased * with every cycle. It has a low overhead and can be read within @@ -109,7 +105,7 @@ public: * global_scale_factor_. This allows applications to set the scale * factor just once for all High_Res_Timers. Check * High_Res_Timer.cpp for the default global_scale_factors for - * several platforms. For many platforms (e.g., Solaris), the + * several platforms. For many platforms the * global_scale_factor_ is set to 1000 so that <scale_factor> need * not be set. Careful, a <scale_factor> of 0 will cause division * by zero exceptions. |