Re: code coverage and teuthology

[Loic Dachary <loic@dachary.org>]

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On 01/15/2013 06:21 PM, Josh Durgin wrote:
> On 01/15/2013 02:10 AM, Loic Dachary wrote:
>> On 01/14/2013 06:26 PM, Josh Durgin wrote:
>>>
>>> Looking at how it's run automatically might help:
>>>
>>> https://github.com/ceph/teuthology/blob/master/teuthology/coverage.py#L88
>>>
>>>
>>> You should also add 'coverage: true' for the ceph task overrides.
>>> This way daemons are killed with SIGTERM, and the atexit function
>>> that outputs coverage information will run.
>>>
>>> Then you don't need your patch changing the flavor either.
>>> For each task X, the docstring for teuthology.task.X.task documents
>>> example usage and extra options like this.
>> Hi,
>>
>> That helped a lot, thanks :-) I think I'm almost there. After running:
>>
>> ./virtualenv/bin/teuthology --archive /tmp/a1 /srv/3node_rgw.yaml
>>
>> wget -O /tmp/build/tmp.tgz http://gitbuilder.ceph.com/ceph-tarball-precise-x86_64-gcov/sha1/$(cat /tmp/a1/ceph-sha1)/ceph.x86_64.tgz
>>
>> echo ceph_build_output_dir: /tmp/build >> ~/.teuthology.yaml
>>
>> ./virtualenv/bin/teuthology-coverage -v --html-output /tmp/html --lcov-output /tmp/lcov --cov-tools-dir /srv/teuthology/coverage /tmp
>>
>> I get
>>
>> INFO:teuthology.coverage:initializing coverage data...
>> Retrieving source and .gcno files...
>> Initializing lcov files...
>> Deleting all .da files in /tmp/lcov/ceph/src and subdirectories
>> Done.
>> Capturing coverage data from /tmp/lcov/ceph/src
>> Found gcov version: 4.7.2
>> Scanning /tmp/lcov/ceph/src for .gcno files ...
>> Found 692 graph files in /tmp/lcov/ceph/src
>> Processing src/test_libhadoopcephfs_build-AuthMethodList.gcno
>> geninfo: ERROR: /tmp/lcov/ceph/src/test_libhadoopcephfs_build-AuthMethodList.gcno: reached unexpected end of file
>>
>> root@ceph:/srv/teuthology# ls -l /tmp/lcov/ceph/src/test_libhadoopcephfs_build-AuthMethodList.gcno
>> -rw-r--r-- 1 root root 41088 Jan 15 09:49 /tmp/lcov/ceph/src/test_libhadoopcephfs_build-AuthMethodList.gcno
>>
>> I'm using
>>
>> lcov: LCOV version 1.9
>>
>> The only problem I can think of is that the machine I'm running lcov on is a Debian GNU/Linux Wheezy, trying to analyze coverage for binaries created for Ubuntu Precise. They are both amd64 but .gcno files may have dependencies to the toolchain.
>>
>> Did you ever run into similar problems ?
>
> I think I did when I built and ran on debian, and it was fixed with a
> later version of lcov (I think 1.9-2). I didn't try doing the coverage
> analysis on a different distribution from where ceph was built and run
> though, so that may also cause some issues.
It was indeed a compatibility problem : running lcov on precise works fine.

Thanks :-)
>
> Josh
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fn:Loic Dachary
n:Dachary;Loic
org:Artisan Logiciel Libre
adr:;;12 bd Magenta;Paris;;75010;France
email;internet:loic@dachary.org
title:Senior Developer
tel;work:+33 4 84 25 08 05
tel;home:+33 9 51 18 43 38
tel;cell:+33 6 64 03 29 07
note:Born 131414404 before EPOCH.
url:http://dachary.org/
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