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Man Pages


Manual Reference Pages  -  PMC_GET_DRIVER_STATS (3)

NAME

pmc_get_driver_stats - retrieve driver statistics

CONTENTS

Library
Synopsis
Description
Return Values
See Also

LIBRARY


.Lb libpmc

SYNOPSIS


.In pmc.h int pmc_get_driver_stats struct pmc_driverstats *gms

DESCRIPTION

The function pmc_get_driver_statistics retrieves a snapshot of the usage statistics maintained by hwpmc(4) into the memory area pointed to by argument gms.

The returned structure includes the following fields:
pm_intr_ignored The number of sampling interrupts ignored.
pm_intr_processed The number of sampling interrupts processed.
pm_intr_bufferfull The number of sampling interrupts dropped due to lack of space in the sample buffer.
pm_syscalls The number of system calls into hwpmc(4).
pm_syscalls_errors The number of system calls into hwpmc(4) that failed.
pm_buffer_requests The number of log buffer requests so far.
pm_buffer_requests_failed
  The number of log buffer requests that failed due to lack of buffers.
pm_log_sweeps The number of sample buffer processing sweeps.

RETURN VALUES


.Rv -std

SEE ALSO

pmc(3), hwpmc(4)
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