On Tue, Oct 18, 2016 at 3:38 AM, Ming Lei <tom.leim...@gmail.com> wrote:
> On Tue, Oct 18, 2016 at 12:04 AM, Sedat Dilek <sedat.di...@gmail.com> wrote:
>> Hi Linus,
>> not sure whom to address on this issue.
>> I have built Linux v4.9-rc1, v4.8.2 and v4.4.25 kernels (in this
>> order) this morning.
>> Building a Linux v4.8.2 under Linux v4.9-rc1 took two times longer.
>> As usually I build with 2 parallel-make-jobs.
>> This takes approx. 30mins.
>> Under Linux v4.9-rc1 it took approx. an hour.
>> My system is a Ubuntu/precise AMD64 (WUBI installation).
>> I use my normal build-environment.
>> If you need further informations, please let me know.
> Kernel building is more like a CPU-bound workload, so maybe
> some clues can be got by comparing results of 'perf top/record',
> which should be very easy to collect.
I have no big experiences with perf.
Last I played was testing early days of "lockdep" feature.
Can you give some clear instructions on how to use perf top/record in
- Sedat -
>> - Sedat -
>> P.S.: Listing content of attached tarball file.
>> $ LC_ALL=C ls -R
>> build-time configs scripts toolchain-amd64
>> WHATS-IN-DILEKS-LINUX-KERNEL.txt config-4.4.25-1-iniza-small
>> config-4.8.2-1-iniza-small config-4.9.0-rc1-1-iniza-small
> Ming Lei