Tuesday, August 25, 2009

[dumpoeac] Scroll CPU

I am disturbed that the operation that sends my CPU utilization to 100%, and yet I perceive as not fast enough, is scrolling. In Firefox, it doesn't complete scrolling until a while after releasing the Down key. Scrolling up or sideways for images is especially slow.

In the terminal, if a command produces a lot of output, I don't get my typing, e.g., Control-C, back for a while.

Is there a better way to engineer these?

Rapid scrolling only samples a virtual frame buffer, at at most the display refresh rate . The contents of a framebuffer is calculated lazily on demand (on sampling).

Use moving pointers instead of memcopy.

1 comment :

Laptop Parts said...

I won't suggest that you should go for a laptop repair straightway but it would have been better had you put in your CPU configuration as well so that I could suggest you some solution.