From e3842db3154f2c7c8000612ce441545c236c00ea Mon Sep 17 00:00:00 2001 From: David Wilson Date: Wed, 28 Feb 2018 00:17:02 +0545 Subject: [PATCH] scirpts: drop old buggy DTrace script --- scripts/generate_cpu_series.py | 57 ------------- scripts/profile_ansible.d | 143 --------------------------------- 2 files changed, 200 deletions(-) delete mode 100644 scripts/generate_cpu_series.py delete mode 100755 scripts/profile_ansible.d diff --git a/scripts/generate_cpu_series.py b/scripts/generate_cpu_series.py deleted file mode 100644 index 60cc4764..00000000 --- a/scripts/generate_cpu_series.py +++ /dev/null @@ -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)) diff --git a/scripts/profile_ansible.d b/scripts/profile_ansible.d deleted file mode 100755 index ad66a2c8..00000000 --- a/scripts/profile_ansible.d +++ /dev/null @@ -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 - ); -}