On Tue, Mar 14, 2023 at 09:35:09PM -0700, Palmer Dabbelt wrote: > On Fri, 24 Feb 2023 08:26:23 PST (-0800), ajones@xxxxxxxxxxxxxxxx wrote: > > When the Zicboz extension is available we can more rapidly zero naturally > > aligned Zicboz block sized chunks of memory. As pages are always page > > I guess we're sort of in a grey area here: this is just a performance thing > so in theory some sort of benchmark should be required, but IMO it's OK to > just hand wave this one away -- if the "zero a cache block" instruction > doesn't make "zero a page" go faster then something has gone so far off the > rails it's probably better to just pretend the machine doesn't implement > Zicboz. > > This all LGTM, so unless anyone's opposed or it blows up on testing > overnight then it'll be on for-next. Thanks, Palmer! drew
