Commit Graph

46 Commits

Author SHA1 Message Date
Markus Lehtonen
b16001f3e2 oeqa.buildperf: measure apparent size instead of real disk usage
This change aligns disk usage measurements of the eSDK test with the old
build-perf-test.sh script. And thus, also makes the results between the
old and the new script comparable.

(From OE-Core rev: dadb84936b3672dcf07e5ab8226158136762801f)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-10-06 07:51:00 +01:00
Markus Lehtonen
0736079dc6 oeqa.buildperf: another fix for splitting 'nevr' string
When processing buildstats we determine recipe name, epoch, version and
revision from the per-recipe buildstat directory name.  One previous
patch made an assumption that package version starts with a number.
That might not be true because of a packaging mistake or whatever
reason. Thus, if a version starting with a number is not found, fall
back to the "old" method of just taking the second-last dash-delimited
part (the one before revision).

(From OE-Core rev: 936eb9aac055f1d4f41bb351477a0f5bebf76a0e)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-14 22:22:07 +01:00
Markus Lehtonen
98264a9191 oeqa.buildperf: be sure to use the latest buildstats
Be sure to take the latest buildstats if multiple buildstats are found.

(From OE-Core rev: bad495f0d0144728a0132c3d3c4d98c24ead4afd)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-08 00:32:43 +01:00
Markus Lehtonen
d021889ba9 oeqa.buildperf: try harder when splitting 'nevr' string
Try to be more intelligent when splitting out recipe name, epoch,
version and revision from the buildstat directory name. Previous
assumption was that package versions never contain a dash but obviously
that is not necessarily true. The new assumption is that the package
version starts with a number.

(From OE-Core rev: 91d3fce1eb3e27d646afba8cf3c03ae560412d1d)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-08 00:32:43 +01:00
Markus Lehtonen
f7ca989ddc oeqa.buildperf: correct globalres time format
Always use two digits for (integer part of) seconds, i.e. show '1:02.34'
instead of '1:2.34'.

(From OE-Core rev: 55bb6816aca39bfa25d4f7e2158a57a5f0ac1cca)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-06 10:24:04 +01:00
Markus Lehtonen
7d77c02401 oeqa.buildperf: include commands log file name in results.json
(From OE-Core rev: b22a71cf3a53a33763ff02608119d2c73cbde006)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:42 +01:00
Markus Lehtonen
c39db4bc45 oeqa.buildperf: include buildstats file name in results.json
No need to do lsdir magic for finding buildstats when reading results.

(From OE-Core rev: 4502f0979bf2e8698bb196345b89b170641fd43f)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:42 +01:00
Markus Lehtonen
c5d1301245 oeqa.buildperf: show skipped tests in results, too
(From OE-Core rev: 4112779f9f314148b475fc4b8e33146de8be6b27)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:42 +01:00
Markus Lehtonen
81b8ccc1f6 oeqa.buildperf: convert buildstats into json format
Instead of archiving buildstats in raw text file format convert all
buildstats into one json-formatted file. Some redundant information,
i.e. 'Event:', 'utime:', 'stime:', 'cutime:' and 'cstime:' fields, are
dropped.

(From OE-Core rev: efcf74b194f2a40eb3e6359dd41386db3eb25287)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:42 +01:00
Markus Lehtonen
f1fb013d48 oeqa.buildperf: measure io stat
Add data from /proc/<pid>/io to system resource measurements.

(From OE-Core rev: e69a46a77854fac1169a09e0c5b70fa4b972255a)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:42 +01:00
Markus Lehtonen
0b332039ea oeqa.buildperf: don't use Gnu time
Use Python standard library functionality instead of the time utility
for measuring elapsed (wall clock) time of commands. The time.* log
files are also ditched. However, the same detailed resource usage data,
previously found in time.* logs is now provided in results.json file.
This data is collected through the resource module of Python.

(From OE-Core rev: d5ad818dd501b18379aa3540bffa9b920d7c3bab)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:42 +01:00
Markus Lehtonen
33a38bc18a oeqa.buildperf: rename buildstats directories
Change directory name from 'buildstats-<test_name>' to just
'buildstats'. However, this patch adds the possibility to label
buildstats directory name with a postfix which makes it possible to save
multiple buildstats per test, for example.

(From OE-Core rev: 8997556040b2e7bfcfa6a75d4d97eb2e32207217)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
6d75f39f09 oeqa.buildperf: separate output dir for each test
Store the output data of each test in an individual subdirectory instead
of storing everything in the root output directory.

(From OE-Core rev: 64ff34df96aa9a74dd4303f76ec711aa5e9d5030)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
700ebe996a oeqa.buildperf: strip date from buildstats directory path
Archive buildstats in a directory like 'buildstats' instead of something
like 'buildstats/20160513120000'.

(From OE-Core rev: 95138cdc70bb7f9b7ab74e1d83305f009790dccc)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
e8c47a6343 oeqa.buildperf: enable json-formatted results
Automatically create a json.formatted file (results.json) in the results
directory that contains results from all tests.

(From OE-Core rev: 6df3263531a41805b2280bb999cb4a73f9f91eae)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
44188933ce oeqa.buildperf: add 'product' to test result data
This defaults to 'oe-core' but can be defined using the
OE_BUILDPERF_PRODUCT environment variable.

(From OE-Core rev: a22cc3e04001be5d11bd85dbdceb7088cae7c735)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
899b17413c oeqa.buildperf: treat failed measurements as errors
Now failed measurements correctly cause a test failure (recorded as an
error). There should be no need to continue the test if one step fails,
especially now that the tests don't depend on each other.

(From OE-Core rev: 446e32aadc775ca146d12173b1463f524d7fe6ef)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
85b7b10b4a oeqa.buildperf: make tests independent
Add test set-up functionality so that the individual tests do not depend
on each other. This should make sure that a failure in one test does not
affect the results of another test. The patch also makes it reasonable
to run only a subset of the tests by using the --run-tests option.

The increase in total execution time of the full suite - caused by the
additional set-up steps - is insignificant because normally no
additional tasks need to be run. The previous test has already done all
set-up work.

(From OE-Core rev: 69b3c63e32d09ea4a41b21daacdff6bf1fc447c1)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
6722b0412c oeqa.buildperf: fix checking of invalid results
The test status check done when writing globalres log was incorrect.

(From OE-Core rev: 3efbd49fd80d2b349a8fd44dbcd509168dbc1061)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-09-03 09:58:41 +01:00
Markus Lehtonen
7155a9b64d oe-build-perf-test: add {git_commit_count} keyword for --commit-results-tag
Makes it possible to create easily sortable tags. Also, the default tag
format is updated to use the new keyword.

(From OE-Core rev: e3161654d75dfc3b059c519205b38b26e3ffb215)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
d0bac259bd oeqa.buildperf: add git commit count to result data
This number represents the number of commits since the beginning of git
history until the tested revision. This helps e.g. in ordering results.

(From OE-Core rev: b52070dd057ff5b410cd193f9be2f25bc4c506cc)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
caf6ad889c oe-build-perf-test: new {tag_num} keyword for --commit-results-tag
This makes it possible to create numbered tags, where the "basename" of
the tag is the same and the only difference is an (automatically)
increasing index number. This is useful if you do multiple test runs on
the same commit. For example, using:
--commit-results-tag {tester_host}/{git_commit}/{tag_num}

would give you tags something like:
myhost/decb3119dffd3fd38b800bebc1e510f9217a152e/0
myhost/decb3119dffd3fd38b800bebc1e510f9217a152e/1
...

The default tag format is updated to use this new keyword in order to
prevent unintentional tag name clashes.

(From OE-Core rev: cf2aba16338a147f81802f48d2e24a96c7133548)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
06b2c75c7e oe-build-perf-test: tag results committed to Git
Create a Git tag when committing results to a Git repository. This patch
also implements --commit-results-tag command line option for controlling
the tag name. The value
is a format string where the following fields may be used:
- {git_branch} - target branch being tested
- {git_commit} - target commit being tested
- {tester_host} - hostname of the tester machine

Tagging can be disabled by giving an empty string to
--commit-results-tag. The option has no effect if --commit-results is
not defined.

(From OE-Core rev: 60059ff5b81d6ba9ba344161d51d1290559ac2df)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
96e8337830 oe-build-perf-test: implement --commit-results-branch
A new command line option for defining the branch where results are
commited. The value is actually a format string accepting two field
names:
- {git_branch} expands to the name of the target branch being tested
- {tester_host} expands to the hostname of the tester machine

The option has no effect if --commit-results is not used.

(From OE-Core rev: b54b63395ec632748a57a702812c8a9a07af35ab)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
8335422b00 oe-build-perf-test: support committing results data to Git
Implement a new command line option '--commit-results' which commits the
test results data into a Git repository. The given path must be an
existing initialized local Git repository.

(From OE-Core rev: b6f635513ca971402e7a970acc2168fb5d4a9476)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
66540ae5c1 oeqa.buildperf: use term commit instead of revision
This is basically a internal change, at this point. Term 'commit' better
represents the data we actually have. Term 'revision' is more vague and
could be understood to point to a tag object, for example.

(From OE-Core rev: f49cf7959b8aaa52b79b22a5884c6aa580a50302)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:47 +01:00
Markus Lehtonen
618a2ede75 oeqa.utils.git: implement GitRepo.get_current_branch()
(From OE-Core rev: dcba2302adab47b398f1ce7d09c38828ea9ae426)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:46 +01:00
Markus Lehtonen
6cf74643e9 oeqa.utils.git: introduce GitRepo.rev_parse()
(From OE-Core rev: 55726e931536ed0cbd7b80588060b05a3145c934)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-25 23:03:46 +01:00
Markus Lehtonen
9cabc18016 oeqa.buildperf: fix crash when creating globalres.log
Fix a bug that was introduced when converting to unittest framework.

(From OE-Core rev: 3bdb7b2e512b2f160360e95ed5b2be3871ec0b4b)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-20 16:06:02 +01:00
Markus Lehtonen
9800b4d9ff oeqa.buildperf: use oe.path.remove()
Drop the self-baked force_rm() method.

(From OE-Core rev: c86bf80abd87acb0da5860806822c64ec9dee089)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:44 +01:00
Markus Lehtonen
51970d10d6 oeqa.buildperf: be more verbose about failed commands
Log failures of commands whose output is stored.

(From OE-Core rev: 240f6e7366c8a9ea830e531d307dd2e27a61a6bd)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:44 +01:00
Markus Lehtonen
d82a795683 oeqa.buildperf: introduce runCmd2()
Special runCmd() for build perf tests which doesn't raise an
AssertionError when the command fails. This causes command failures to
be detected as test errors instead of test failures. This way "failed"
state of tests is reserved for future making it possible to set e.g.
thresholds for certain measurement results.

(From OE-Core rev: 09590ac76a19ee1b1b4a9188f7fce5029f0de52a)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:44 +01:00
Markus Lehtonen
09b9a4aeee oeqa.buildperf: add BuildPerfTestResult class
The new class is derived from unittest.TextTestResult class. It is
actually implemented by modifying the old BuildPerfTestRunner class
which, in turn, is replaced by a totally new simple implementation
derived from unittest.TestRunner.

(From OE-Core rev: 89eb37ef1ef8d5deb87fd55c9ea7b2cfa2681b07)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:44 +01:00
Markus Lehtonen
3acf648f58 oeqa.buildperf: add BuildPerfTestLoader class
(From OE-Core rev: b281c4a49b0df1de9b3137efb8ff50744e06c48d)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:43 +01:00
Markus Lehtonen
3f519df38e oeqa.buildperf: derive BuildPerfTestCase class from unitest.TestCase
Rename BuildPerfTest to BuildPerfTestCase and convert it to be derived
from TestCase class from the unittest framework of the Python standard
library. This doesn't work with our existing testcases or test runner
class and these need to be modified, too.

(From OE-Core rev: b0b434210a3dbd576f68344e29b8c20d18561099)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:43 +01:00
Jose Perez Carranza
6203a77a53 buildperf: Add support for times without decimal part
Add logic for the cases when the time retrieved does
not have decimal part.

(From OE-Core rev: a6c9e515f8bc590612e3082ab1c4c254711c8e3b)

Signed-off-by: Jose Perez Carranza <jose.perez.carranza@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-08-17 10:35:43 +01:00
Markus Lehtonen
eb36f00002 oe-build-perf-test: implement --globalres-file option
Using this option the script appends test results into a 'global results
file'. A CSV-formatted output of the results. This option is to provide
compatibility with the old build-perf-test.sh.

(From OE-Core rev: e9f18e63220e452f2b0c878998e57d944ae83980)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:47 +01:00
Markus Lehtonen
8c596369dd oeqa.buildperf: add git revision and branch to result data
BuildPerfTestRunner determines these from the Git repository under which
it is being run (i.e. where the build directory exists). The branch and
revision may be defined/overridden with OE_BUILDPERFTEST_GIT_BRANCH
and OE_BUILDPERFTEST_GIT_BRANCH environment variables, if needed. This
makes it possible to run the build performance test script even if the
top directory is not a git repository clone, for example.

(From OE-Core rev: e6004582454d8c6a18f617c12e6e408ded5be8df)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:47 +01:00
Markus Lehtonen
5599645d33 oeqa.buildperf: archive build/conf into test results
Have the build/conf directory as part of test results.

(From OE-Core rev: ea32a8a65f668450e0ec0e80483bd5e8c91b8a18)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:47 +01:00
Markus Lehtonen
1d88659ef6 oeqa.buildperf: implement BuildPerfTestRunner class
The new class is responsible for actually running the tests and
processing their results. This commit also adds a decorator function for
adding new tests. No automatic test discovery, at least yet.

(From OE-Core rev: bf90aecb7e150d6bfac7240286c797b79d26528b)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00
Markus Lehtonen
6512d6956b oeqa.buildperf: add method for saving buildstats
(From OE-Core rev: 15b44a484ce408b0a1acfb907e2b12ebc6cce296)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00
Markus Lehtonen
45c6a04a37 oeqa.buildperf: add method for measuring file disk usage
Add a new method to BuildPerfTest class for measuring the disk usage of
a file of directory.

(From OE-Core rev: 85cdc240e75d481e93238fbf75f8b8431da05f19)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00
Markus Lehtonen
1a0e20546e oeqa.buildperf: add method to log shell commands
Add new methods to BuildPerfTest class for running a shell
command and logging its output.

(From OE-Core rev: 8f0b11ba1266f9c650cf34d9b394d72009ee7207)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00
Markus Lehtonen
6e27b2ae0e oeqa.buildperf: method for measuring system resource usage
Extend BuildPerfTest class with a new method for measuring the system
resource usage of a shell command to BuildPerfTest class.  For now,
easurement of the elapsed time is done with the Gnu time utility,
similarly to the build-perf-test.sh shell script. And, it currently only
records the elapsed (wall clock).

The measured values (currently, only the elapsed time) is actually a
dictionary, making it possible to extend it with additional resource
values, e.g. cpu time or i/o usage, in the future.  In addition to the
actual values of the measurement each record contains a 'name' and
'legend' where name is supposed to function as a common key or id over
test runs, making comparison and trending easier, for example. Legend is
supposed to be a short human readable description.

(From OE-Core rev: ced156bfea4a6649d201f41275641a633f218322)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00
Markus Lehtonen
1b10ded015 oeqa.buildperf: add BuildPerfTest class
The new class will be used as an abstract base class for build
performance tests. This implementation contains some common
functionality used in multiple tests, "copied" from the
build-perf-test.sh shell script.

(From OE-Core rev: 35cd7363759a286e80ddca0d028db3d2bf524b17)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00
Markus Lehtonen
cee685ca0d oeqa.buildperf: functionality to drop kernel caches
Add a new utility class for dropping Linux kernel caches.  It uses sudo
and tee to write to the drop_caches file. Checking if the user has the
permissions to drop caches (without a password) is done by trying to
writing an invalid value to the drop_caches file. This way, we will find
if writing (with tee) is possible but not really dropping caches, yet.

User can avoid giving the password by adding something like:
<user> ALL = NOPASSWD: /usr/bin/tee /proc/sys/vm/drop_caches
to the system sudoers file.

(From OE-Core rev: c9cb248429ced50c96d11ba5361c272d4c9b9323)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2016-07-01 16:22:46 +01:00