Re: 8.0 performance issue when running build.sh?

[Thor Lancelot Simon <tls%panix.com@localhost>]

On Thu, Aug 09, 2018 at 10:10:07AM +0200, Martin Husemann wrote:
> With the patch applied:
> 
> Elapsed time: 1564.93 seconds.
> 
> -- Kernel lock spin
> 
> Total%  Count   Time/ms          Lock                       Caller
> ------ ------- --------- ---------------------- ------------------------------
> 100.00    2054     14.18 kernel_lock            <all>
>  47.43     846      6.72 kernel_lock            fileassoc_file_delete+20
>  23.73     188      3.36 kernel_lock            intr_biglock_wrapper+16
>  16.01     203      2.27 kernel_lock            scsipi_adapter_request+63
>   5.29     662      0.75 kernel_lock            VOP_POLL+93
>   5.29      95      0.75 kernel_lock            biodone2+81
>   0.91      15      0.13 kernel_lock            sleepq_block+1c5
>   0.60      21      0.08 kernel_lock            frag6_fasttimo+1a
>   0.29       9      0.04 kernel_lock            ip_slowtimo+1a
>   0.27       2      0.04 kernel_lock            VFS_SYNC+65
>   0.07       2      0.01 kernel_lock            callout_softclock+42c
>   0.06       3      0.01 kernel_lock            nd6_timer_work+49
>   0.05       4      0.01 kernel_lock            frag6_slowtimo+1f
>   0.01       4      0.00 kernel_lock            kevent1+698
> 
> so .. no need to worry about kernel_lock for this load any more.

Actually, I wonder if we could kill off the time spent by fileassoc.  Is
it still used only by veriexec?  We can easily option that out of the build
box kernels.

-- 
 Thor Lancelot Simon	                                     tls%panix.com@localhost
  "Whether or not there's hope for change is not the question.  If you
   want to be a free person, you don't stand up for human rights because
   it will work, but because it is right."	--Andrei Sakharov