Experiment with the available browsers, and make sure you're up-to-date on OS and browser patches Make sure hardware acceleration is enabled in Flash (it's on by default) and in your browser (also on by default) The way that you get performance and power/thermal efficiency beyond that is to use the dedicated video processing silicon on the GPU. That stuff is industry-standard (we license the video codecs on your behalf), and have been tuned for maximal performance. There's no magic knob to turn to make video decoding more efficient in software. When that's not available - either because the video isn't encoded in a way that would allow us to leverage hardware, or because those resources are unavailable (they're in-use, they're disabled in the browser, etc.), then we're going to fall back to software-based decoding, which puts a load on the CPU. Ideally, we'd ask the GPU to decode video using the dedicated graphics hardware. It's using the available CPU resources, and the computer decides that active thermal management is required at some point.Īnyway, the really important question is 'Why isn't Flash able to offload some of this work to the GPU?'. It's annoying when they come on because they're loud, but that's what they're there for. Your computer has fans designed to keep the CPU cool when it's operating at capacity. Like any language, it's possible to write code that uses lots of resources, and there isn't a generic way to prevent software from being written inefficiently, or from using the available system resources. Flash isn't a video player or conferencing software, although you can write those things using Flash technology. Other people write software in ActionScript, which they compile to bytecode, which we interpret and do all of the low-level processing stuff for - like allocating and tracking memory, rendering pixels to the screen, etc.

Check cpu usage on mac