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perf: add more perf events support

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With current perf framework, this patch adds support and documentation
for more perf events, including cache misses, cache references, cpu cycles,
and instructions.

Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
This commit is contained in:
Qiaowei Ren
2016-09-02 17:00:58 -04:00
committed by John Ferlan
parent b00d7f298b
commit bae660869d
9 changed files with 117 additions and 1 deletions
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include/libvirt/libvirt-domain.h
+39
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@@ -1972,6 +1972,45 @@ void virDomainStatsRecordListFree(virDomainStatsRecordPtr *stats);
*/
# define VIR_PERF_PARAM_MBML "mbml"
/**
* VIR_PERF_PARAM_CACHE_MISSES:
*
* Macro for typed parameter name that represents cache_misses perf
* event which can be used to measure the count of cache misses by
* applications running on the platform. It corresponds to the
* "perf.cache_misses" field in the *Stats APIs.
*/
# define VIR_PERF_PARAM_CACHE_MISSES "cache_misses"
/**
* VIR_PERF_PARAM_CACHE_REFERENCES:
*
* Macro for typed parameter name that represents cache_references
* perf event which can be used to measure the count of cache hits
* by applications running on the platform. It corresponds to the
* "perf.cache_references" field in the *Stats APIs.
*/
# define VIR_PERF_PARAM_CACHE_REFERENCES "cache_references"
/**
* VIR_PERF_PARAM_INSTRUCTIONS:
*
* Macro for typed parameter name that represents instructions perf
* event which can be used to measure the count of instructions
* by applications running on the platform. It corresponds to the
* "perf.instructions" field in the *Stats APIs.
*/
# define VIR_PERF_PARAM_INSTRUCTIONS "instructions"
/**
* VIR_PERF_PARAM_CPU_CYCLES:
*
* Macro for typed parameter name that represents cpu_cycles perf event
* which can be used to measure how many cpu cycles one instruction needs.
* It corresponds to the "perf.cpu_cycles" field in the *Stats APIs.
*/
# define VIR_PERF_PARAM_CPU_CYCLES "cpu_cycles"
int virDomainGetPerfEvents(virDomainPtr dom,
virTypedParameterPtr *params,
int *nparams,