Establish a performance profiling environment guarantees meaningful and consistency of consecutive invocations of the odp_cpu_xxx() APIs. While after profiling was done restore the execution environment to its multi-core optimized state.
Signed-off-by: Yi He <[email protected]> --- include/odp/api/spec/cpu.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/include/odp/api/spec/cpu.h b/include/odp/api/spec/cpu.h index 2789511..0bc9327 100644 --- a/include/odp/api/spec/cpu.h +++ b/include/odp/api/spec/cpu.h @@ -27,6 +27,21 @@ extern "C" { /** + * @typedef odp_profiler_t + * ODP performance profiler handle + */ + +/** + * Setup a performance profiling environment + * + * A performance profiling environment guarantees meaningful and consistency of + * consecutive invocations of the odp_cpu_xxx() APIs. + * + * @return performance profiler handle + */ +odp_profiler_t odp_profiler_start(void); + +/** * CPU identifier * * Determine CPU identifier on which the calling is running. CPU numbering is @@ -170,6 +185,22 @@ uint64_t odp_cpu_cycles_resolution(void); void odp_cpu_pause(void); /** + * Stop the performance profiling environment + * + * Stop performance profiling and restore the execution environment to its + * multi-core optimized state, won't preserve meaningful and consistency of + * consecutive invocations of the odp_cpu_xxx() APIs anymore. + * + * @param profiler performance profiler handle + * + * @retval 0 on success + * @retval <0 on failure + * + * @see odp_profiler_start() + */ +int odp_profiler_stop(odp_profiler_t profiler); + +/** * @} */ -- 1.9.1 _______________________________________________ lng-odp mailing list [email protected] https://lists.linaro.org/mailman/listinfo/lng-odp
