statistics.h File Reference

#include <jack/types.h>

Go to the source code of this file.

Functions
float	jack_get_max_delayed_usecs (jack_client_t *client)
float	jack_get_xrun_delayed_usecs (jack_client_t *client)
void	jack_reset_max_delayed_usecs (jack_client_t *client)

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Function Documentation

float jack_get_max_delayed_usecs

(

jack_client_t *

client

)

Returns:

the maximum delay reported by the backend since startup or reset. When compared to the period size in usecs, this can be used to estimate the ideal period size for a given setup.

float jack_get_xrun_delayed_usecs

(

jack_client_t *

client

)

Returns:

the delay in microseconds due to the most recent XRUN occurrence. This probably only makes sense when called from a JackXRunCallback defined using jack_set_xrun_callback().

void jack_reset_max_delayed_usecs

(

jack_client_t *

client

)

Reset the maximum delay counter. This would be useful to estimate the effect that a change to the configuration of a running system (e.g. toggling kernel preemption) has on the delay experienced by JACK, without having to restart the JACK engine.