Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1502627

Re: [4.9-rc1] Build-time 2x slower

Show all headers | View raw

On Tue, Oct 18, 2016 at 12:04 AM, Sedat Dilek <sedat.dilek@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.

>
> Regards,
> - Sedat -
>
> P.S.: Listing content of attached tarball file.
>
> $ LC_ALL=C ls -R
> .:
> build-time  configs  scripts  toolchain-amd64
>
> ./build-time:
> ls-alt_building-4-4-25-under-4-8-2.txt
> ls-alt_building-4-8-2-under-4-9-0-rc1.txt
>
> ./configs:
> 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
>
> ./scripts:
> build_linux-upstream.sh
>
> ./toolchain-amd64:
> HOST-AND-BUILD-TOOLCHAIN.txt



Thanks,
Ming Lei

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: [4.9-rc1] Build-time 2x slower Ming Lei <tom.leiming@gmail.com> - 2016-10-18 03:40 +0200
  Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-18 11:40 +0200
    Re: [4.9-rc1] Build-time 2x slower Jörg Otte <jrg.otte@gmail.com> - 2016-10-18 19:00 +0200
      Re: [4.9-rc1] Build-time 2x slower Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-18 19:20 +0200
        Re: [4.9-rc1] Build-time 2x slower Jörg Otte <jrg.otte@gmail.com> - 2016-10-19 17:30 +0200
          Re: [4.9-rc1] Build-time 2x slower Linus Torvalds <torvalds@linux-foundation.org> - 2016-10-19 17:30 +0200
            Re: [4.9-rc1] Build-time 2x slower Jörg Otte <jrg.otte@gmail.com> - 2016-10-19 19:00 +0200
              Re: [4.9-rc1] Build-time 2x slower "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-10-19 22:50 +0200
                Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-20 09:50 +0200
                Re: [4.9-rc1] Build-time 2x slower "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-10-20 13:10 +0200
                Re: [4.9-rc1] Build-time 2x slower "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-10-20 16:30 +0200
                Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-20 16:40 +0200
                Re: [4.9-rc1] Build-time 2x slower "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-10-20 16:50 +0200
                Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-21 03:00 +0200
                Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-20 16:30 +0200
                Re: [4.9-rc1] Build-time 2x slower Jörg Otte <jrg.otte@gmail.com> - 2016-10-20 10:00 +0200
                Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-20 10:10 +0200
                Re: [4.9-rc1] Build-time 2x slower "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-10-20 13:10 +0200
                Re: [4.9-rc1] Build-time 2x slower Jörg Otte <jrg.otte@gmail.com> - 2016-10-20 16:40 +0200
                Re: [4.9-rc1] Build-time 2x slower "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2016-10-20 16:50 +0200
              Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-20 09:30 +0200
            Re: [4.9-rc1] Build-time 2x slower Sedat Dilek <sedat.dilek@gmail.com> - 2016-10-20 09:50 +0200

csiph-web