May be we should add a new TODO section in BUILD.Windows like: diff --git a/BUILD.Windows b/BUILD.Windows index ca0d252..41e6eab 100644 --- a/BUILD.Windows +++ b/BUILD.Windows @@ -85,3 +85,11 @@ For example, --with-openssl="C:/OpenSSL-Win32"
* Run make for the ported executables. + +TODO: +---- + +* OVS currently has no native support for atomics on Windows. Pthreads +are used as a fallback, but some features, such as OVS-RCU are really +slow without native atomics support. Atomics support for Windows has to +be brought in. On Tue, Jun 3, 2014 at 2:16 PM, Jarno Rajahalme <jrajaha...@nicira.com> wrote: > > On Jun 3, 2014, at 2:03 PM, Ben Pfaff <b...@nicira.com> wrote: > >> On Tue, Jun 03, 2014 at 01:09:11PM -0700, Jarno Rajahalme wrote: >>> OVS is slow when compiled with pthreads atomics. Add a generic note >>> in INSTALL, with a reference to lib/ovs-atomic.h, where a new comment >>> provides additional detail. >>> >>> Signed-off-by: Jarno Rajahalme <jrajaha...@nicira.com> >> >> I think this is only likely to affect Windows (everyone else uses GCC >> or Clang) so should we put it in BUILD.Windows? > > > So you think this should not be mentioned in INSTALL? If so, I think the text > there should be modified to something like “* GCC 4.x or clang C compiler” > instead of the current “A C compiler, such as…”. > > How about adding the following to BUILD.Windows: > > diff --git a/BUILD.Windows b/BUILD.Windows > index ca0d252..05956ba 100644 > --- a/BUILD.Windows > +++ b/BUILD.Windows > @@ -39,6 +39,10 @@ project from > ftp://sourceware.org/pub/pthreads-win32/prebuilt-dll-2-9-1-release to a > directory (e.g.: C:/pthread). > > +OVS currently has no native support for atomics on Windows. Pthreads > +are used as a fallback, but some features, such as OVS-RCU are really > +slow without native atomics support. > + > * Get the Open vSwitch sources from either cloning the repo using git > or from a distribution tar ball. > > Jarno > > _______________________________________________ > dev mailing list > dev@openvswitch.org > http://openvswitch.org/mailman/listinfo/dev _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
