qemu how-to?

qemu how-to?

[Dmitry Monakhov]

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Hi,

lkp-test project has nice howto about local case. But I want to run
lkp inside qemu in order to get beter resource utilization.
Unfortunetly it is not obvious how to do that. I've tried 
#lkp split jobs/hackbench.yaml
#lkp compile hackbench-50%-threads-socket.yaml > job.yaml.sh
#lkp qemu -k $my-kernel//arch/x86/boot/bzImage job.yaml.sh
It gives me a lot of errors and exit, It's looks like script expect some
magic enviroment variables to be configured before run.
Can you please explain how to do that, or share your autostart script.

Can you please do that on clean enviroment debian enviroment (for
example inside docker container), so very first commands are
# docker run --rm -it --privileged debian:sid
#$ apt-get update
#$ apt-get install git make -y
#$ git clone https://github.com/01org/lkp-tests
#$ cd lkp-tests
#$ make install


BTW It would be nice to have this info in README file. Because IFAIU
many people want to ask this question again and again.

Re: qemu how-to?

[Huang, Ying]

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Dmitry Monakhov <dmonakhov@openvz.org> writes:

> Hi,
>
> lkp-test project has nice howto about local case. But I want to run
> lkp inside qemu in order to get beter resource utilization.
> Unfortunetly it is not obvious how to do that. I've tried 
> #lkp split jobs/hackbench.yaml
> #lkp compile hackbench-50%-threads-socket.yaml > job.yaml.sh
> #lkp qemu -k $my-kernel//arch/x86/boot/bzImage job.yaml.sh

lkp qemu is mainly for boot test now.  For performance test like
hackbench, you need to run lkp-tests inside the qemu.  Something like,

start the qemu, login into the Linux in qemu, then

# cd $lkp-tests
# make install
# lkp install jobs/hackbench.yaml
# lkp run xxx.yaml # one split job

> It gives me a lot of errors and exit, It's looks like script expect some
> magic enviroment variables to be configured before run.
> Can you please explain how to do that, or share your autostart script.
>
> Can you please do that on clean enviroment debian enviroment (for
> example inside docker container), so very first commands are
> # docker run --rm -it --privileged debian:sid
> #$ apt-get update
> #$ apt-get install git make -y
> #$ git clone https://github.com/01org/lkp-tests
> #$ cd lkp-tests
> #$ make install
>
>
> BTW It would be nice to have this info in README file. Because IFAIU
> many people want to ask this question again and again.

Thanks for your suggestion.  We will do that.

Best Regards,
Huang, Ying

Re: qemu how-to?

[Dmitry Monakhov]

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"Huang, Ying" <ying.huang@intel.com> writes:

> Dmitry Monakhov <dmonakhov@openvz.org> writes:
>
>> Hi,
>>
>> lkp-test project has nice howto about local case. But I want to run
>> lkp inside qemu in order to get beter resource utilization.
>> Unfortunetly it is not obvious how to do that. I've tried 
>> #lkp split jobs/hackbench.yaml
>> #lkp compile hackbench-50%-threads-socket.yaml > job.yaml.sh
>> #lkp qemu -k $my-kernel//arch/x86/boot/bzImage job.yaml.sh
>
> lkp qemu is mainly for boot test now.  For performance test like
> hackbench, you need to run lkp-tests inside the qemu.  Something like,
In fact my primarry interest are functional tests.
I want to check that patches before submission to LKML.
So the only thing I do care is total time of validation.
For that reason it is reasonable to split full autotest/validation
job to indepented peaces and run them in parallel in different
qemu VMs. I use this trick for xfstests-bld and it drops test time to
3minutes instead of 3600min if all tests runs sequentially.

BTW1: https://github.com/tytso/xfstests-bld is a good example of
hermetic kvm enviroment for xfstests execution.

BTW2: It would be nice to have syntax checkers ala
sparse/smatch/checkpatch.pl run as part of autotest, but
commit 52a4a8c490fa and 0b8003f06 remove smatch and sparse
with statement that "We already has smatch test for kernel", but
I can not find it. How I can run syntax checkers from LKP-tests?
>
> start the qemu, login into the Linux in qemu, then
>
> # cd $lkp-tests
> # make install
> # lkp install jobs/hackbench.yaml
> # lkp run xxx.yaml # one split job
>
>> It gives me a lot of errors and exit, It's looks like script expect some
>> magic enviroment variables to be configured before run.
>> Can you please explain how to do that, or share your autostart script.
>>
>> Can you please do that on clean enviroment debian enviroment (for
>> example inside docker container), so very first commands are
>> # docker run --rm -it --privileged debian:sid
>> #$ apt-get update
>> #$ apt-get install git make -y
>> #$ git clone https://github.com/01org/lkp-tests
>> #$ cd lkp-tests
>> #$ make install
>>
>>
>> BTW It would be nice to have this info in README file. Because IFAIU
>> many people want to ask this question again and again.
>
> Thanks for your suggestion.  We will do that.
>
> Best Regards,
> Huang, Ying