Experimental Performance Evaluation of POBICOS Middleware for Wireless Sensor Networks

Table 3

Middleware and TinyOS task descriptions from the sample run.

Task name	Source	Description
McuSleep.sleep	TinyOS	Command called in task scheduler when there is no tasks to be run.
PoPerfInspM$CpuUsageMilliTimer$fired	POBICOS	Timer task to measure CPU load periodically. Default measurement period is 3 seconds. Because this task resets the performance counters details of the profiler cannot measure all metrics.
VirtualizeTimerC$0$updateFromTimer	TinyOS	Task to manage TinyOS timers.
PoCommTimersM$BaseTimer$fired	POBICOS	Task to manage reliable transport timers. Default period is 4 seconds.
PoReliableTransportIstub$Timer$fired	POBICOS	Timer task to manage reliable transport transmissions.
CC2480P$sendDoneTask	POBICOS	Radio transmission task.
CC2480P$receiveTask	POBICOS	Radio reception task.
PoNetworkMngrM$MilliTimer$fired	POBICOS	Task for network management. Default period is 1 second.