| """ |
| Lockstat is the basic tool used to control the kernel's Lockmeter |
| functionality: e.g., turning the kernel's data gathering on or off, and |
| retrieving that data from the kernel so that Lockstat can massage it and |
| produce printed reports. See http://oss.sgi.com/projects/lockmeter for |
| details. |
| |
| NOTE: if you get compile errors from config.h, referring you to a FAQ, |
| you might need to do 'cat < /dev/null > /usr/include/linux/config.h'. |
| But read the FAQ first. |
| """ |
| import os |
| from autotest_lib.client.bin import utils, profiler |
| |
| class lockmeter(profiler.profiler): |
| version = 1 |
| |
| # ftp://oss.sgi.com/projects/lockmeter/download/lockstat-1.4.11.tar.gz |
| # patched with lockstat.diff |
| # ftp://oss.sgi.com/projects/lockmeter/download/v2.6/patch.2.6.14-lockmeter-1.gz |
| # is the kernel patch |
| |
| def setup(self, tarball = 'lockstat-1.4.11.tar.bz2'): |
| self.tarball = utils.unmap_url(self.bindir, tarball, self.tmpdir) |
| utils.extract_tarball_to_dir(self.tarball, self.srcdir) |
| os.chdir(self.srcdir) |
| |
| utils.make() |
| self.cmd = self.srcdir + '/lockstat' |
| |
| |
| def initialize(self): |
| self.job.require_gcc() |
| |
| if not os.path.exists('/proc/lockmeter'): |
| msg = ('Lockmeter is not compiled into your kernel' |
| 'Please fix and try again') |
| print msg |
| raise AssertionError(msg) |
| |
| |
| def start(self, test): |
| utils.system(self.cmd + ' off') |
| utils.system(self.cmd + ' reset') |
| utils.system(self.cmd + ' on') |
| |
| |
| def stop(self, test): |
| utils.system(self.cmd + ' off') |
| |
| |
| def report(self, test): |
| args = ' -m ' + utils.get_systemmap() |
| self.output = self.profdir + '/results/lockstat' |
| utils.system(self.cmd + args + ' print > ' + self.output) |
