/* example usage: stap /path/to/dist.systemtap -x <pid> */
/*
* %CopyrightBegin%
*
* Copyright Scott Lystig Fritchie and Andreas Schultz, 2011. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
/*
* Note: This file assumes that you're using the non-SMP-enabled Erlang
* virtual machine, "beam". The SMP-enabled VM is called "beam.smp".
* Note that other variations of the virtual machine also have
* different names, e.g. the debug build of the SMP-enabled VM
* is "beam.debug.smp".
*
* To use a different virtual machine, replace each instance of
* "beam" with "beam.smp" or the VM name appropriate to your
* environment.
*/
probe process("beam").mark("dist-monitor")
{
printf("monitor: pid %d, who %s, what %s, node %s, type %s, reason %s\n",
pid(),
user_string($arg1), user_string($arg2), user_string($arg3), user_string($arg4),
user_string($arg5));
}
probe process("beam").mark("dist-port_busy")
{
printf("dist port_busy: node %s, port %s, remote_node %s, blocked pid %s\n",
user_string($arg1), user_string($arg2), user_string($arg3), user_string($arg4));
blocked_procs[user_string($arg4)] = timestamp;
}
probe process("beam").mark("dist-port_busy")
{
printf("dist port_busy: node %s, port %s, remote_node %s, blocked pid %s\n",
user_string($arg1), user_string($arg2), user_string($arg3), user_string($arg4));
blocked_procs[user_string($arg4)] = timestamp;
}
probe process("beam").mark("dist-output")
{
printf("dist output: node %s, port %s, remote_node %s bytes %d\n",
user_string($arg1), user_string($arg2), user_string($arg3), $arg4);
}
probe process("beam").mark("dist-outputv")
{
printf("port outputv: node %s, port %s, remote_node %s bytes %d\n",
user_string($arg1), user_string($arg2), user_string($arg3), $arg4);
}
probe process("beam").mark("process-scheduled")
{
pidstr = user_string($arg1);
if (pidstr in blocked_procs) {
printf("blocked pid %s scheduled now, waited %d microseconds\n",
pidstr, (timestamp - blocked_procs[pidstr]) / 1000);
delete blocked_procs[pidstr];
}
}
global blocked_procs;
