Google announced yesterday that it has implemented several improvements in the company's Chrome web browser that improve how the browser renders content.
While improvements in raw speed are always good, there is only so much you can do about that. This is why Google started to look at other methods to improve performance of Chrome.
One improvement that Google mentions in the article changes how Chrome handles redraws of pages. The browser identifies areas of the page that have not changed, and those that have changed. Anything that has not changed is copied which speeds up the operation.
Performance can take a hit when pages are very dynamic. Google's optimization has Chrome track draw commands, and enables the browser to identify elements that have not been modified. It can then copy the entire thing from cache, which, according to Google, may speed up the painting of a new frame by up to 35%.
The article describes a second optimization method in which Google Chrome copies tiles from previous frames, to only update specific pixels in that tile afterwards to speed up the time it takes to redraw.
This new method reduces the tile redraw time by up to 40% according to the company.
This sounds all good and great, but Google fails to mention that the second method is not supported by all operating systems, and even architectures.
If you follow the link to Intel's blog post about the new zero-copy feature, you will learn that the feature is only enabled by default on Chrome OS. The article dates back to March 2016 though but Google gives no indication on the version of Chrome, nor the operating systems it is enabled on by default.
To check whether the new Zero Copy mode is available on your device, do the following:
If only Tile Update Mode is not set correctly, the default is set to One-copy, then you may enable the feature in the following way:
A couple of things are unclear after reading Google's blog post. First, the company does not mention the Chrome version, or operating systems the new features are available for.
There is also no mentioning of whether the new zero-copy feature is an Intel only feature, or available for non-Intel processors as well.
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.