mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-17 10:26:15 +00:00
677d4530c2
- pmc_attach(), pmc_detach(). - pmc_capabilities(), pmc_cpuinfo(), pmc_ncpu(), pmc_npmc(), pmc_pmcinfo(), pmc_width(). - pmc_get_driver_stats(). - pmc_get_msr(). - pmc_read(), pmc_rw(), pmc_write(). - pmc_set(). - pmc_start(), pmc_stop().
74 lines
2.5 KiB
Groff
74 lines
2.5 KiB
Groff
.\" Copyright (c) 2007 Joseph Koshy. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" This software is provided by Joseph Koshy ``as is'' and
|
|
.\" any express or implied warranties, including, but not limited to, the
|
|
.\" implied warranties of merchantability and fitness for a particular purpose
|
|
.\" are disclaimed. in no event shall Joseph Koshy be liable
|
|
.\" for any direct, indirect, incidental, special, exemplary, or consequential
|
|
.\" damages (including, but not limited to, procurement of substitute goods
|
|
.\" or services; loss of use, data, or profits; or business interruption)
|
|
.\" however caused and on any theory of liability, whether in contract, strict
|
|
.\" liability, or tort (including negligence or otherwise) arising in any way
|
|
.\" out of the use of this software, even if advised of the possibility of
|
|
.\" such damage.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd November 25, 2007
|
|
.Os
|
|
.Dt PMC_GET_DRIVER_STATS 3
|
|
.Sh NAME
|
|
.Nm pmc_get_driver_stats
|
|
.Nd retrieve driver statistics
|
|
.Sh LIBRARY
|
|
.Lb libpmc
|
|
.Sh SYNOPSIS
|
|
.In pmc.h
|
|
.Ft int
|
|
.Fn pmc_get_driver_stats "struct pmc_driverstats *gms"
|
|
.Sh DESCRIPTION
|
|
The function
|
|
.Fn pmc_get_driver_statistics
|
|
retrieves a snapshot of the usage statistics maintained by
|
|
.Xr hwpmc 4
|
|
into the memory area pointed to by argument
|
|
.Fa gms .
|
|
.Pp
|
|
The returned structure includes the following fields:
|
|
.Bl -tag -width pmc_intr_bufferfull -offset indent -compact
|
|
.It pm_intr_ignored
|
|
The number of sampling interrupts ignored.
|
|
.It pm_intr_processed
|
|
The number of sampling interrupts processed.
|
|
.It pm_intr_bufferfull
|
|
The number of sampling interrupts dropped due to lack of space
|
|
in the sample buffer.
|
|
.It pm_syscalls
|
|
The number of system calls into
|
|
.Xr hwpmc 4 .
|
|
.It pm_syscalls_errors
|
|
The number of system calls into
|
|
.Xr hwpmc 4
|
|
that failed.
|
|
.It pm_buffer_requests
|
|
The number of log buffer requests so far.
|
|
.It pm_buffer_requests_failed
|
|
The number of log buffer requests that failed due to lack of buffers.
|
|
.It pm_log_sweeps
|
|
The number of sample buffer processing sweeps.
|
|
.El
|
|
.Sh RETURN VALUES
|
|
.Rv -std
|
|
.Sh SEE ALSO
|
|
.Xr pmc 3 ,
|
|
.Xr hwpmc 4
|