Alex Gartrell <[email protected]> wrote: > This patch adds the IFF_MULTI_READ flag. This has the following behavior. > > 1) If a read is too short for a packet, a single stripped packet will be read > > 2) If a read is long enough for multiple packets, as many *full* packets > will be read as possible. We will not return a stripped packet, so even if > there are many, many packets, we may get a short read. > > In casual performance testing with a simple test program that simply reads > and counts packets, IFF_MULTI_READ conservatively yielded a 30% CPU win, as > measured by top. Load was being driven by a bunch of hpings running on a > server on the same L2 network (single hop through a top-of-rack switch). > > Signed-off-by: Alex Gartrell <[email protected]>
As tun already has a socket interface can we do this through recvmmsg? Thanks, -- Email: Herbert Xu <[email protected]> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
