ldap_rb_stats_script.d [plain text]
/*
* Copyright (c) 2008 Apple Inc. All Rights Reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*
* Does this need to be released under the OpenLDAP License instead of, or in
* addition to the APSL?
*
*/
/*
* Dtrace script to see the response message rb tree stats
*
* To run this script:
* sudo dtrace -s ldap_rb_stats_script.d -p <pid of some ldap using process>
* sudo dtrace -s ldap_rb_stats_script.d -c "some ldap using command"
*/
#pragma D option quiet
#pragma D option bufsize=2m
#pragma D option switchrate=150hz
/* High water mark for the count */
int hwmcount;
ldap_rb_stats$target:::count
{
printf("\n%s: msg id: %d, msg ptr %p nodes in rb tree %d", probefunc, arg1, arg2, arg0);
ustack();
}
ldap_rb_stats$target:::count
/ arg0 > hwmcount /
{
hwmcount = arg0;
}
END
{
printf("nodes in rb tree high water mark: %d\n", hwmcount);
}