scirpts: drop old buggy DTrace script
David Wilson
7 years ago
parent
446c97b910
commit
e3842db315
@ -1,57 +0,0 @@
|
||||
#!/usr/bin/env python
|
||||
# Copyright 2017, David Wilson
|
||||
#
|
||||
# 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.
|
||||
#
|
||||
# 3. Neither the name of the copyright holder nor the names of its contributors
|
||||
# may be used to endorse or promote products derived from this software without
|
||||
# specific prior written permission.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
|
||||
|
||||
"""
|
||||
Read a CSV produced by profile_ansible.d on stdin and produce a 100ms-precision
|
||||
series of accumulated CPU time on stdout, with floating point second-resolution
|
||||
timestamps relative to time of first event.
|
||||
"""
|
||||
|
||||
import collections
|
||||
import csv
|
||||
import sys
|
||||
|
||||
nanosec = 1e9
|
||||
precision = 1
|
||||
|
||||
c = collections.Counter()
|
||||
wall = 0
|
||||
|
||||
for row in csv.DictReader(sys.stdin):
|
||||
n = float(row['wall_nsec']) / nanosec
|
||||
if wall == 0:
|
||||
wall = n
|
||||
if row['op'] == 'SCHED':
|
||||
c[round(n-wall, precision)] += int(row['cpu_nsec'])
|
||||
|
||||
wr = csv.writer(sys.stdout)
|
||||
wr.writerow(['wall', 'cpu'])
|
||||
total = 0.0
|
||||
for wall, cpu in sorted(c.iteritems()):
|
||||
total += cpu
|
||||
wr.writerow((wall, total))
|
||||
@ -1,143 +0,0 @@
|
||||
#!/usr/sbin/dtrace -qs
|
||||
|
||||
/*
|
||||
* Copyright 2017, David Wilson
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* 3. Neither the name of the copyright holder nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software without
|
||||
* specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.
|
||||
*/
|
||||
|
||||
/*
|
||||
* OS X DTrace script to record the CPU time consumed by any python2.7 or SSH
|
||||
* process, and the exact read/write sizes to any AF_INET socket opened by an
|
||||
* SSH process.
|
||||
*
|
||||
* This introduces significant tracing overhead of between 5-10%, most likely
|
||||
* due to the SCHED events.
|
||||
*
|
||||
* Produces a CSV file containing columns:
|
||||
* - wall_nsec: Nanoseconds wall time.
|
||||
* - op: One of START, SCHED, EXIT, READ, WRITE
|
||||
* - nbytes: for READ/WRITE, size of AF_INET data read/written
|
||||
* - cpu_nsec: for SCHED, nanoseconds spent scheduled.
|
||||
* - pid: Process ID.
|
||||
* - execname: argv[0]
|
||||
*
|
||||
* Operations:
|
||||
* - START: thread relevant to the trace started up.
|
||||
* - EXIT: thread relevant to the trace ended, cpu_nsec contains total
|
||||
* time scheduled
|
||||
* - SCHED: thread relevant to the trace was scheduled, cpu_nsec contains
|
||||
* time spent before it went off-cpu again.
|
||||
* - READ: SSH process performed a nbytes read from an AF_INET socket.
|
||||
* - WRITE: SSH process performed a nbytes write to an AF_INET socket.
|
||||
*/
|
||||
|
||||
inline string SSH = "ssh";
|
||||
inline string PYTHON = "python2.7";
|
||||
inline int PF_INET = 2;
|
||||
|
||||
dtrace:::BEGIN
|
||||
{
|
||||
printf("wall_nsec,op,nbytes,cpu_nsec,pid,execname\n");
|
||||
}
|
||||
|
||||
syscall::socket:entry
|
||||
/execname == SSH/
|
||||
{
|
||||
self->is_inet = (arg0 == PF_INET);
|
||||
}
|
||||
|
||||
syscall::socket:return
|
||||
/self->is_inet/
|
||||
{
|
||||
self->inet_fds[arg0] = 1;
|
||||
}
|
||||
|
||||
syscall::close:entry
|
||||
/execname == SSH/
|
||||
{
|
||||
self->inet_fds[arg0] = 0;
|
||||
}
|
||||
|
||||
syscall::write:entry,
|
||||
syscall::write_nocancel:entry
|
||||
{
|
||||
self->fd = arg0;
|
||||
}
|
||||
|
||||
syscall::write:return,
|
||||
syscall::write_nocancel:return
|
||||
/self->inet_fds[self->fd] && arg0 > 0/
|
||||
{
|
||||
printf("%d,WRITE,%d,,,\n", walltimestamp, arg0);
|
||||
}
|
||||
|
||||
syscall::read:entry,
|
||||
syscall::read_nocancel:entry
|
||||
{
|
||||
self->fd = arg0;
|
||||
}
|
||||
|
||||
syscall::read*:return,
|
||||
syscall::read_nocancel:return
|
||||
/self->inet_fds[self->fd] && arg0 > 0/
|
||||
{
|
||||
printf("%d,READ,%d,,,\n", walltimestamp, arg0);
|
||||
}
|
||||
|
||||
proc:::lwp-start
|
||||
/execname == SSH || execname == PYTHON/
|
||||
{
|
||||
self->start_vtime = vtimestamp;
|
||||
printf("%d,START,,,%d,%s\n", walltimestamp, pid, execname);
|
||||
}
|
||||
|
||||
proc:::lwp-exit
|
||||
/(execname == SSH || execname == PYTHON) && self->start_vtime/
|
||||
{
|
||||
this->nsecs = vtimestamp - self->start_vtime;
|
||||
printf("%d,EXIT,,%d,%d,%s\n", walltimestamp, this->nsecs, pid, execname);
|
||||
/* Kernel threads are recycled, variables hang around. */
|
||||
self->start_vtime = 0;
|
||||
self->ontime = 0;
|
||||
}
|
||||
|
||||
sched:::on-cpu
|
||||
/self->start_vtime/
|
||||
{
|
||||
self->ontime = timestamp;
|
||||
}
|
||||
|
||||
sched:::off-cpu
|
||||
/self->ontime/
|
||||
{
|
||||
printf("%d,SCHED,,%d,%d,%s\n",
|
||||
walltimestamp,
|
||||
timestamp - self->ontime,
|
||||
pid,
|
||||
execname
|
||||
);
|
||||
}
|
||||
Loading…
Reference in New Issue