Re: Snappy GUI response
Alan Cox <[email protected]>
| Newsgroups | gmane.comp.xfree86.forum |
|---|---|
| Message-ID | <[email protected]> |
> Hmm.. I'll try this, but I'm intentionally trying to include the time > from the mouse click until the UI is visible. It's supposed to be the > user-percieved time, and when the client-app receives the expose > event, nothing is visible so the user is certainly still waiting. The PS/2 mouse won't give you that info. Its also very slow to talk to (milliseconds a message). With a USB mouse you can probably safely assume that the mouse->kernel path is <= 100uS. This btw illustrates why without figures the data is useless - I can do context switches faster than an ISA I/O cycle. I like your synthetic click suggestion.