Bug 10097

Summary: Add support for non interactive execution of build-perf-test-wrapper.sh script
Product: [QA/Testing] Build Testing Reporter: Jose Perez C <jose.perez.carranza>
Component: generalAssignee: Markus Lehtonen <markus.lehtonen>
Status: VERIFIED NOTABUG QA Contact: Jose Perez C <jose.perez.carranza>
Severity: enhancement    
Priority: Undecided    
Version: 2.2   
Target Milestone: ---   
Hardware: x86   
OS: Multiple   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: No (bug/feature does not impact docs)

Description Jose Perez C 2016-08-08 16:54:01 UTC 
Currently build-perf-test-wrapper.sh asks for sudo password to check KernelDropCaches in an interactive way, our machines needs a method to execute this script in non interactive way.
Comment 1 Markus Lehtonen 2016-08-09 06:59:26 UTC 
oe-build-perf test script (that is being called by build-perf-test-wrapper.sh) needs root privileges in order to drop the kernel caches. The script uses the tee command for writing into /proc/sys/vm/drop_caches. You can avoid the password prompt by defining:

<user> ALL = NOPASSWD: /usr/bin/tee /proc/sys/vm/drop_caches

in a sudoers file (e.g. /etc/sudoers.d/buildperf). Just replace <user> with the username that is supposed to be able to run the script without a password probmpt.
Comment 2 Jose Perez C 2016-08-09 21:47:19 UTC 
Not a bug