The performance component collects performance estimates from backends and picks a winner depending on an objective. More...

#include <esdm-internal.h>
#include <esdm.h>
#include <stdio.h>
#include <stdlib.h>

Include dependency graph for esdm-performancemodel.c:

Macros
#define	DEBUG_ENTER ESDM_DEBUG_COM_FMT("METADUMMY", "", "")

#define	DEBUG(fmt, ...) ESDM_DEBUG_COM_FMT("METADUMMY", fmt, __VA_ARGS__)

Functions
esdm_performance_t *	esdm_performance_init (esdm_instance_t *esdm)

esdm_status	esdm_performance_finalize (esdm_instance_t *esdm)

void	fetch_performance_from_backend (gpointer key, gpointer value, gpointer user_data)

esdm_status	esdm_performance_recommendation (esdm_instance_t esdm, esdm_fragment_t in, esdm_fragment_t *out)

esdm_status	esdm_backend_t_estimate_performance (esdm_backend_t *backend, int request)

Detailed Description

The performance component collects performance estimates from backends and picks a winner depending on an objective.

TODO: cache performance estimates

Function Documentation

esdm_status esdm_performance_recommendation	(	esdm_instance_t *	esdm,
		esdm_fragment_t *	in,
		esdm_fragment_t *	out
	)

Splits pending requests into one or more requests based on performance estimates obtained from available backends.

void fetch_performance_from_backend	(	gpointer	key,
		gpointer	value,
		gpointer	user_data
	)

Queries backend for performance estimate for the given fragment.