Thank you for those informative comments, Elliott. My own tests in Firefox reflect yours and Boris's feedback. While there is clearly overhead from non-Canvas vectors, it's pretty minor.
On Wed, Jul 9, 2014 at 12:43 PM, Elliott Sprehn <espr...@gmail.com> wrote: > > On Tue, Jul 8, 2014 at 7:37 AM, Brian Blakely <anewpage.me...@gmail.com> > wrote: >> >> I agree, that would be valuable. This proposal is coming from the >> direction that sweeping out the main thread, and leaving only what is >> necessary for a full Canvas experience, would benefit such >> experiences. >> > > Blink doesn't actually schedule anything related to CSS or layout on the > main thread if all you're doing is drawing to <canvas> so you wouldn't be > saving any main thread time. I doubt having those features is causing you > any jank. They do use some memory, but for a document with nothing but a > <canvas> I suspect it's very little. > > - E
