On Tue, Oct 27, 2009 at 10:27 PM, Darin Fisher <[email protected]> wrote: > What version of Windows are you using? I find the double-buffering on Vista > and Win7 to have a big negative impact on performance as compared to WinXP. > I'm always delighted to run Chrome on my old WinXP laptop. It seems so > much faster there.
I lied. I actually have four laptops. So both Vista and XP. However, the Vista one has worse specs so I wasn't counting it. > On X-windows, the renderer backingstores are managed by the X server, and > the transport DIBs are also managed by the X server. So, we avoid a lot of > memcpy costs incurred on Windows due to keeping the backingstores in main > memory there. We don't draw into a device dependent bitmap on Windows? Is that not similar? I was wondering if core IPC latency was lower on Linux. That number bleeds into a lot of other times. > I suspect this is at least one of the bigger issues. > I also suspect that process creation is a problem on Windows. We should > probably look into having a spare child process on Windows to minimize new > tab jank. Maybe there is a bug on this already? If we're not doing that already, that seems like it might be a big win. Adam --~--~---------~--~----~------------~-------~--~----~ Chromium Developers mailing list: [email protected] View archives, change email options, or unsubscribe: http://groups.google.com/group/chromium-dev -~----------~----~----~----~------~----~------~--~---
