Science Fair Project Encyclopedia
Most operating systems (OS) disable interrupts in order to protect their critical regions. Therefore interrupt latency is determined by the software of a computer system.
Interrupt latency and throughput are not the same. Many of the techniques that improve interrupt latency reduce throughput. For example, low-latency operating systems use special data structures that permit the OS to enable interrupts on each cycle of the search of the data structure. This reduces the absolute number of times that the OS can switch tasks per second (i.e., it lowers throughput), but decreases the OS's response time to service the electronics.
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details