[Bug libstdc++/51618] synchronous futures are slow

2018-08-16 Thread redi at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug libstdc++/51618] synchronous futures are slow

2014-09-19 Thread redi at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 Jonathan Wakely changed: What|Removed |Added Severity|normal |enhancement

[Bug libstdc++/51618] synchronous futures are slow

2011-12-19 Thread dave at boostpro dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 --- Comment #4 from Dave Abrahams 2011-12-19 13:24:16 UTC --- Not a problem; thanks for looking.

[Bug libstdc++/51618] synchronous futures are slow

2011-12-19 Thread redi at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 --- Comment #3 from Jonathan Wakely 2011-12-19 13:13:32 UTC --- (In reply to comment #2) > I'm confused. IIUC even shared_futures aren't supposed to be accessed > concurrently from multiple threads. Why would multiple threads be > accessing a s

[Bug libstdc++/51618] synchronous futures are slow

2011-12-19 Thread dave at boostpro dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 --- Comment #2 from Dave Abrahams 2011-12-19 12:11:33 UTC --- on Mon Dec 19 2011, "redi at gcc dot gnu.org" wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 > > --- Comment #1 from Jonathan Wakely 2011-12-19 > 11:51:52 UTC --- > Cou

[Bug libstdc++/51618] synchronous futures are slow

2011-12-19 Thread redi at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51618 --- Comment #1 from Jonathan Wakely 2011-12-19 11:51:52 UTC --- Could you expand on what you mean by "no attached synchronization"? If a global future visible to all threads stores a deferred function then it still needs synchronization to ensur