28/04/2018 06:39, Yang, Zhiyong: > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Marvin Liu > Sent: Saturday, April 28, 2018 5:54 PM > > > > When building share library, thread-local storage model will be changed to > > global-dynamic. It will cost additional protect for read thread local > > variable. By > > now only lcore id is this kind of varaible and not need to dynamic share > > with > > other threads. So make TLS model back to initial-exec like static library > > for > > better performance. > > > > Signed-off-by: Marvin Liu <yong....@intel.com> > > > > For vhost-user, > If no this pach, vhost user in shared lib perf drops 14.3% than working in > static. > after applying the patch , vhost-user in shared lib can achieve the similar > perf as in static lib. > > Tested-by: Zhiyong Yang <zhiyong.y...@intel.com>
For the record, I have decided to not try this optimization in the last weeks of the 18.05 release. However we could try it in 18.08 by applying the patch early in the cycle. Is there anyone against this patch?
