| |||||||||||||
What mattersWhat mattersPosted Jan 18, 2012 6:02 UTC (Wed) by kevinm (guest, #69913)In reply to: What matters by dlang Parent article: The logger meets linux-kernel
It's not the time taken by the extra cycles that matters - of course a user space daemon could keep up with the rate of message, even on a slow processor.
Rather, it's the fact that every extra cycle wasted is an extra cycle that the CPU must remain in a higher power state, and thus represents an incremental hit to the battery life. Recall in particular that context-switching from one userspace process to another requires a cache-flush on older ARM processors.
(Log in to post comments)
|
|||||||||||||