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74 lines
2.4 KiB
Plaintext
Executable File
74 lines
2.4 KiB
Plaintext
Executable File
#!/usr/sbin/dtrace -s
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/*
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* Copyright (c) 2012 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed at the University of Cambridge Computer
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* Laboratory with support from a grant from Google, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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* This script creates a trace of NFS RPCs, NFS attribute cache
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* activity, and NFS access cache activity, along with the system call
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* that instigated the activity. Notice that NFS events may happen
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* outside of the context of a system call, most likely due to the VM
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* system paging from NFS, in which case the system call name is
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* reported as "-"
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*/
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#pragma D option quiet
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dtrace:::BEGIN
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{
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printf("probe\targ0\texecutable\tsyscall\n");
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}
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syscall:::entry
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{
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self->syscallname = probefunc;
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}
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syscall:::return
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{
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self->syscallname = "";
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}
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nfsclient:::
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/self->syscallname != 0 && self->syscallname != ""/
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{
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printf("%s\t%s\t%s\t%s\n", probemod, stringof(arg0), execname,
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self->syscallname);
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}
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nfsclient:::
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/self->syscallname == 0 || self->syscallname == ""/
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{
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printf("%s\t%s\t%s\t%s\n", probemod, stringof(arg0), execname,
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self->syscallname);
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}
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