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Subject: Re: buildworld build times 10-stable vs. 11-stable
To: Slawa Olhovchenkov <slw@zxy.spb.ru>, Dan Mack <mack@macktronics.com>
References: <alpine.GSO.2.11.1701151033290.58251@localhost.local>
 <20170115171318.GC58505@zxy.spb.ru>
Cc: freebsd-stable@freebsd.org
From: Shane Ambler <BSD@ShaneWare.Biz>
Message-ID: <6820bd62-dacb-b804-f540-ea1357e15331@ShaneWare.Biz>
Date: Mon, 16 Jan 2017 15:54:12 +1030
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On 16/01/2017 03:43, Slawa Olhovchenkov wrote:
> On Sun, Jan 15, 2017 at 10:40:42AM -0600, Dan Mack wrote:
>
>> I have a system which builds world, kernel, install, boot, installworld,
>> reboot several times per week.   I just noticed that my build times
>> increased from about (just cherry picking a couple build logs):
>>
>>    Starting build of FreeBSD SVN [309852]  10.3-STABLE
>>    Kernel will be GENERIC
>>      building world ... 	90:35 0
>>
>>
>>    Starting build of FreeBSD SVN [312099]  11.0-STABLE
>>    Kernel will be GENERIC
>>      building world ... 	146:23 0
>>
>> before I start bisecting the log files, is there something obvious
>> introduced in 11 that I missed that would explain the roughly 50 minute
>> difference in my build times?   clang?  additional subsystems?
>
> lldb/clang and related.

+1

Try adding WITHOUT_CLANG_EXTRAS WITHOUT_CLANG_FULL WITHOUT_LLDB
to src.conf and see what build times you get.

-- 
FreeBSD - the place to B...Software Developing

Shane Ambler