Re: [PATCH] Make client behavior configurable: drop_caches

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On Tue, 2009-11-10 at 10:28 -0800, John Admanski wrote:
> Will this code actually work on a standalone client job? I'm not sure
> we've ever used global_config stuff outside of the server (despite the
> fact that the code lives in the common_lib).

Whoops, I just forgot that global_config.ini is a top level file. 2
possible solutions:

1 - Move global_config.ini to client/
2 - Create a specific configuration file for client.

But yes, the patch has already been applied and introduces a regression
since the stand alone client won't be able to see global_config.ini. I
am sorry.

I believe solution 1) is not bad, client/global_config.ini is just
slightly non intuitive, but splitting conf files does not sound like a
better idea.

> -- John
> 
> On Thu, Nov 5, 2009 at 12:23 PM, Lucas Meneghel Rodrigues
> <lmr@xxxxxxxxxx> wrote:
> > Right now autotest will drop caches between:
> >  * Test executions
> >  * Same test iterations
> >
> > This change turns those into configurable options on
> > global_config.ini. Default configuration:
> >
> > [CLIENT]
> > drop_caches: True
> > drop_caches_between_iterations: True
> >
> > Signed-off-by: Lucas Meneghel Rodrigues <lmr@xxxxxxxxxx>
> > ---
> >  client/bin/autotest |    7 ++++++-
> >  client/bin/job.py   |   11 ++++++++---
> >  global_config.ini   |    7 ++++++-
> >  3 files changed, 20 insertions(+), 5 deletions(-)
> >
> > diff --git a/client/bin/autotest b/client/bin/autotest
> > index fe8f2c7..2d47843 100755
> > --- a/client/bin/autotest
> > +++ b/client/bin/autotest
> > @@ -6,6 +6,7 @@ import os, sys, shutil
> >  import common
> >  from optparse import OptionParser
> >  from autotest_lib.client.bin import job
> > +from autotest_lib.client.common_lib import global_config
> >
> >
> >  # Use the name of the binary to find the real installation directory
> > @@ -58,5 +59,9 @@ options, args = parser.parse_args()
> >  if len(args) != 1:
> >     usage()
> >
> > +drop_caches = global_config.global_config.get_config_value('CLIENT',
> > +                                                           'drop_caches',
> > +                                                           type=bool)
> > +
> >  # JOB: run the specified job control file.
> > -job.runjob(os.path.realpath(args[0]), options)
> > +job.runjob(os.path.realpath(args[0]), drop_caches, options)
> > diff --git a/client/bin/job.py b/client/bin/job.py
> > index ebfb3a3..6099188 100755
> > --- a/client/bin/job.py
> > +++ b/client/bin/job.py
> > @@ -15,6 +15,8 @@ from autotest_lib.client.bin import config, sysinfo, test, local_host
> >  from autotest_lib.client.bin import partition as partition_lib
> >  from autotest_lib.client.common_lib import error, barrier, log, logging_manager
> >  from autotest_lib.client.common_lib import base_packages, packages
> > +from autotest_lib.client.common_lib import global_config
> > +
> >
> >  LAST_BOOT_TAG = object()
> >  NO_DEFAULT = object()
> > @@ -251,7 +253,10 @@ class base_job(object):
> >         """
> >         Perform the drop caches initialization.
> >         """
> > -        self.drop_caches_between_iterations = True
> > +        self.drop_caches_between_iterations = (
> > +                       global_config.global_config.get_config_value('CLIENT',
> > +                                            'drop_caches_between_iterations',
> > +                                            type=bool))
> >         self.drop_caches = drop_caches
> >         if self.drop_caches:
> >             logging.debug("Dropping caches")
> > @@ -1339,7 +1344,7 @@ class disk_usage_monitor:
> >         return decorator
> >
> >
> > -def runjob(control, options):
> > +def runjob(control, drop_caches, options):
> >     """
> >     Run a job using the given control file.
> >
> > @@ -1367,7 +1372,7 @@ def runjob(control, options):
> >         if options.cont and not os.path.exists(state):
> >             raise error.JobComplete("all done")
> >
> > -        myjob = job(control, options)
> > +        myjob = job(control=control, drop_caches=drop_caches, options=options)
> >
> >         # Load in the users control file, may do any one of:
> >         #  1) execute in toto
> > diff --git a/global_config.ini b/global_config.ini
> > index cc20a96..d018374 100644
> > --- a/global_config.ini
> > +++ b/global_config.ini
> > @@ -28,7 +28,6 @@ parse_failed_repair_default: 0
> >  # Autotest potential install paths
> >  client_autodir_paths: /usr/local/autotest,/home/autotest
> >
> > -
> >  [SERVER]
> >  hostname: autotest
> >  # Turn on RPC Logging
> > @@ -48,6 +47,12 @@ smtp_port:
> >  smtp_user:
> >  smtp_password:
> >
> > +[CLIENT]
> > +# Drop test client caches between every test execution
> > +drop_caches: True
> > +# Drop test client caches between every test iteration execution
> > +drop_caches_between_iterations: True
> > +
> >  [SCHEDULER]
> >  die_on_orphans: False
> >  enable_scheduler: True
> > --
> > 1.6.2.5
> >
> >
> --
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