> On Sat, Sep 02, 2006 at 04:24:01PM +0200, Jean Delvare wrote: > > I don't have the time to even try measuring it. I just thought I would > > mention performance in the conversation, after I noticed with a user > > some days ago that logging sensors data using "sensors" every other > > second would put 15% of load on the system, while I expected it > > to be unnoticeable. > > This is probably just due to an interruptable sleep happening, which > artificially increases the load average. I would be supprised if the > CPU usage really goes up by that much. The bus driver msleep()s, so it's rather an uninterruptible sleep? Not that I know what different it makes in that context. And there's the userspace part probably taking a great deal of CPU as well, but I did not bother analyzing in detail where the time was spent back then. -- Jean Delvare
