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Use BOOST_SMT_PAUSE starting from the first iteration

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This commit is contained in:
Peter Dimov
2020-06-06 16:54:57 +03:00
parent d38f64ded9
commit f8dcf5f6f4
1 changed files with 6 additions and 12 deletions
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14
include/boost/smart_ptr/detail/yield_k.hpp
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@@ -74,15 +74,12 @@ namespace detail
inline void yield( unsigned k ) BOOST_NOEXCEPT inline void yield( unsigned k ) BOOST_NOEXCEPT
{ {
if( k < 4 ) if( k < 16 )
{ {
}
#if defined( BOOST_SMT_PAUSE ) #if defined( BOOST_SMT_PAUSE )
else if( k < 16 )
{
BOOST_SMT_PAUSE BOOST_SMT_PAUSE
}
#endif #endif
}
else if( k < 32 ) else if( k < 32 )
{ {
Sleep( 0 ); Sleep( 0 );
@@ -116,15 +113,12 @@ namespace detail
inline void yield( unsigned k ) inline void yield( unsigned k )
{ {
if( k < 4 ) if( k < 16 )
{ {
}
#if defined( BOOST_SMT_PAUSE ) #if defined( BOOST_SMT_PAUSE )
else if( k < 16 )
{
BOOST_SMT_PAUSE BOOST_SMT_PAUSE
}
#endif #endif
}
else if( k < 32 || k & 1 ) else if( k < 32 || k & 1 )
{ {
sched_yield(); sched_yield();