[Swan-dev] kvm-install speed up run git commands on host

Andrew Cagney andrew.cagney at gmail.com
Mon Sep 9 19:55:46 UTC 2019


On Mon, 9 Sep 2019 at 15:38, Antony Antony <antony at phenome.org> wrote:

> Hi Andrew,
> this disagreement escalated with 8b77b407eea. I committed optional
> variable ADD_GIT_DIRTY=true to get --dirty back. Its default is "false"
> cae06e797508 . I thik default should the true. any one else has an opinion?
>
> --dirty is important for me and I guess it savedi also Paul many times.
> However, he may swing towards saving 30 seconds of his life argument and
> agree dirty is not necessary. I am not always using kvm and 9pfs.
> On namespace and docker the saving is one or two seconds with --dirty.
> Those
> seconds are likely to save many potential  mistakes without --dirty.
>
>
2019-08-21 06:34:27 <antony>    cagney: I agree.  your recent changes
project  a bit different idea along with vague promise of speed: i don't
need this feature remove it even if someone else need it.
2019-08-21 06:34:38 <antony>    it is in the name of speed so no discussion.


> <rant>
> It is sad to see your commit remove --dirty feature. To me you are
> imposing
> your personal favorite as default overruling a what others think is good
> principle to have.
>
> I am a bit surprised to see this commit in spite of explanations on the
> IRC,
> and what, to me, seemed was an agreement to leave it alone.
>
> Since it only affect few people, may be a handful, it quickly turns to
> matter of personal taste. Not much point in arguing over it.
>
> Do keep in mind soon we are likely to move to namespace testing for single
> test like "make base kvm-install kvm-test
> KVM_TESTS=testing/pluto/basic-pluto-01" there the saving is 1-4 out 15 -
> 30
> seconds to run a test vs 2+ minutes now.
> </rant>
>
> regards,
> -antony
>
> On Wed, Aug 21, 2019 at 08:43:35AM -0400, Andrew Cagney wrote:
> > On Tue, 20 Aug 2019 at 16:54, Antony Antony <antony at phenome.org> wrote:
> > >
> > > Here is an idea to speedup up building inside kvm when using
> "kvm-install"
> > > from what I red on IRC this would save upto 80seconds in the build.
> Testrun
> > > could take 4hours.
> >
> > It hurts when it matters and it also hurts the host (just not as bad)
> > - when trying to turn around a test result after (possibly) tweaking a
> > single .c file, vis:
> >
> >    make base kvm-install kvm-test KVM_TESTS=testing/pluto/basic-pluto-01
> >
> > Some time back I went through all this pain with the web code - Paul
> > pointed out it was crippling KVM.  From memory, the critical thing was
> > to drop -dirty (it's not exactly a must have) but I need to re-confirm
> > this.
> >
> > >
> > > I am curious if it helps Andrew.
> > > I am trying avoid loosing features in the name saving few seconds.
> > >
> > > -antony
> > > _______________________________________________
> > > Swan-dev mailing list
> > > Swan-dev at lists.libreswan.org
> > > https://lists.libreswan.org/mailman/listinfo/swan-dev
>
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