mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-30 04:22:44 +00:00
72 lines
2.5 KiB
Groff
72 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 THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
|
|
.\"
|
|
.Dd November 25, 2007
|
|
.Dt PMC_GET_DRIVER_STATS 3
|
|
.Os
|
|
.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
|