This is a weird response. This is the Open vSwitch list, so the original poster is asking about Open vSwitch.
On Sun, Mar 26, 2017 at 10:13:19PM -0400, Daniel Lohin wrote: > No idea what you are talking about… in what? > > Generally speaking… a user application runs as fast as kernel, as long as it > doesn’t need to make system level calls (i.e. write files, network packets, > etc). The reason is the kernel needs to do a lot of things like, does the > person have permissions… This is called context switching. > > Running at the kernel level is always fast… there is never any context > switching.. > > now for the drawback… errors in programming in the kernel are disasterous… > major system crashes (the whole computer), really bad security issues, etc… > User mode is a lot safer, at least to the system itself (an error can still > result in the crashing of the app, or security problems with the app itself, > but not the entire system). > > We try to keep as much out of the kernel as possible, but there are some > areas where it is needed for performance reasons. > > > On Mar 26, 2017, at 8:33 PM, Michael Williams <mw7...@hotmail.com> wrote: > > > > What are the advantages of running the kernel verses the user mode switch? > > > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
