On 6 December 2010 20:53, Martin Sustrik <sust...@250bpm.com> wrote: > Steven, > > Interesting the _ReadWriteBarrier() intrinsic does not work even though >> that is what it is designed for. I manually add a memory fence using a >> locking intrinsic or just disable optimisation of the entire function. >> For high performance of TCP it is probably better to go with adding >> the intrinsic. >> >> To reproduce just run the following a few times and see if it locks, >> >> remote_thr.exe "epgm://10.6.28.35 <http://10.6.28.35>;239.192.0.1:7500 >> <http://239.192.0.1:7500>" 10 10 >> >> >> Patches are not signed because there are two options, therefore I >> explicitly state these patches are released under the MIT/X11 license. >> > > Something strange is going on here. > > If the compiler optimises out source->read() the second patch would not > work. > > Assuming that it actually helps, I would say it's rather a timing issue or > somesuch... > > I've tested, both work. Feel free to find other workarounds.
-- Steve-o
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