#3456: Add support for CPU counter timestamps
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Reporter: Sebastian Huber | Owner: Sebastian Huber
Type: enhancement | Status: assigned
Priority: normal | Milestone: 5.1
Component: score | Version: 5
Severity: normal | Keywords:
Blocked By: | Blocking:
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The original use case for the CPU counter was low level profiling of SMP
synchronization primitives and busy wait loops for device drivers.
For low overhead timestamps the CPU counter may be also used, e.g. for
tracing. To support timestamps, the CPU counter must increment
monotonically within the whole range of the CPU counter data type, e.g.
32-bit unsigned integer. In addition, it should not be affected by power
saving states of the processor.
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Ticket URL: <http://devel.rtems.org/ticket/3456>
RTEMS Project <http://www.rtems.org/>
RTEMS Project
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