73 lines
2.1 KiB
Plaintext
Executable File
73 lines
2.1 KiB
Plaintext
Executable File
#!/usr/sbin/dtrace -s
|
|
/*
|
|
* Copyright (c) 2012 Robert N. M. Watson
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed at the University of Cambridge Computer
|
|
* Laboratory with support from a grant from Google, Inc.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*
|
|
* This script measures all time spent waiting on RPC replies for each
|
|
* system call, and then generates a histogram of those times sorted by
|
|
* system call name.
|
|
*
|
|
* Currently only supports NFSv3
|
|
*
|
|
* Usage: nfsclienttime
|
|
*
|
|
* Press Ctrl-C to exit and display statistics.
|
|
*/
|
|
|
|
#pragma D option quiet
|
|
|
|
dtrace:::BEGIN
|
|
{
|
|
printf("Collecting data...press Ctrl-C to exit.\n");
|
|
}
|
|
|
|
syscall:::entry
|
|
{
|
|
|
|
self->count = 0;
|
|
}
|
|
|
|
nfsclient:nfs3::start
|
|
{
|
|
|
|
self->timestamp = timestamp;
|
|
}
|
|
|
|
nfsclient:nfs3::done
|
|
{
|
|
|
|
self->count += (timestamp - self->timestamp);
|
|
}
|
|
|
|
syscall:::return
|
|
/self->count != 0/ {
|
|
|
|
@syscalls[probefunc] = quantize(self->count);
|
|
}
|