On Tue, Apr 21, 2015 at 01:47:12PM +0100, Ciara Loftus wrote: > This patch allows the user to specify the number of Exact Match Cache > entries they wish to have available for their instance of the vswitch. > This is a achieved by means of a 'configure' flag. > > At the moment, the default number of EMC entries is 1024, for which > the switch should perform optimally up to this number of flows. > However, if the user expects say roughly 2000 flows of traffic, an EMC > with 2048 entries will perform better, allbeit with a larger demand on > memory and time spent flushing the cache. If these requirements are > acceptable to the user, they may choose to allocate 2048 entries like so, > and in turn receive improved performance for their specific use case: > > './configure --with-emcsize=11' > > The number of entries is calculated as 2^11 = 2048.
configure flags are really inconvenient. Is there a reason that this can't be made configurable at runtime? It would be better yet if the EMC size could automatically adjust itself. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
