forked from luck/tmp_suning_uos_patched
0007eceace
Then, the code can be shared between kvm events and perf stat. Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> [ Dong Hao <haodong@linux.vnet.ibm.com>: rebase it on acme's git tree ] Signed-off-by: Dong Hao <haodong@linux.vnet.ibm.com> Cc: Avi Kivity <avi@redhat.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: kvm@vger.kernel.org Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com Link: http://lkml.kernel.org/r/1347870675-31495-3-git-send-email-haodong@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
17 lines
297 B
C
17 lines
297 B
C
#ifndef __PERF_STATS_H
|
|
#define __PERF_STATS_H
|
|
|
|
#include "types.h"
|
|
|
|
struct stats
|
|
{
|
|
double n, mean, M2;
|
|
};
|
|
|
|
void update_stats(struct stats *stats, u64 val);
|
|
double avg_stats(struct stats *stats);
|
|
double stddev_stats(struct stats *stats);
|
|
double rel_stddev_stats(double stddev, double avg);
|
|
|
|
#endif
|