Re: speed tests (Re: Replace bcopy() to update ether_addr)

22.08.2012 17:36, Luigi Rizzo написал: On Wed, Aug 22, 2012 at 02:32:21AM +, Bruce Evans wrote: luigi wrote: even more orthogonal: I found that copying 8n + (5, 6 or 7) bytes was much much slower than copying a multiple of 8 bytes. For n=0, 1,2,4,8 bytes are efficient, other cases are slo

Re: speed tests (Re: Replace bcopy() to update ether_addr)

On Wed, Aug 22, 2012 at 05:26:47PM +0300, Mitya wrote: > 22.08.2012 17:36, Luigi Rizzo ??: > >On Wed, Aug 22, 2012 at 02:32:21AM +, Bruce Evans wrote: > >>luigi wrote: > >> > >>>even more orthogonal: > >>> > >>>I found that copying 8n + (5, 6 or 7) bytes was much much slower than >

speed tests (Re: Replace bcopy() to update ether_addr)

On Wed, Aug 22, 2012 at 02:32:21AM +, Bruce Evans wrote: > luigi wrote: > > > even more orthogonal: > > > > I found that copying 8n + (5, 6 or 7) bytes was much much slower than > > copying a multiple of 8 bytes. For n=0, 1,2,4,8 bytes are efficient, > > other cases are slow (turned into 2 or