WSL2-Linux-Kernel/include/linux/trace_clock.h

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#ifndef _LINUX_TRACE_CLOCK_H
#define _LINUX_TRACE_CLOCK_H
/*
* 3 trace clock variants, with differing scalability/precision
* tradeoffs:
*
* - local: CPU-local trace clock
* - medium: scalable global clock with some jitter
* - global: globally monotonic, serialized clock
*/
#include <linux/compiler.h>
#include <linux/types.h>
extern u64 notrace trace_clock_local(void);
extern u64 notrace trace_clock(void);
extern u64 notrace trace_clock_global(void);
extern u64 notrace trace_clock_counter(void);
#endif /* _LINUX_TRACE_CLOCK_H */