Compilation of Emacs trunk (24) too slow.

Compilation of Emacs trunk (24) too slow.

[Oleksandr Gavenko]

It takes about 10 min for processing lines likes:

  Reloading stale files.el
  Loading /home/user/devel/emacs/emacs-bzr/trunk/lisp/files.el (source)...
  Reloading stale loaddefs.el
  Loading /home/user/devel/emacs/emacs-bzr/trunk/lisp/loaddefs.el (source)...

which printed many times (on "make" command in out of source build).
loaddefs.el is about 1.2 MiB files.el is about 300 KiB.

So my Emacs build with -j2 still not complete for second evening after job...

Am I anything missing in current Emacs design?

-- 
Best regards!

Re: Compilation of Emacs trunk (24) too slow.

[Yagnesh Raghava Yakkala]

Hello,

On 12月 19 2012, Oleksandr Gavenko <gavenkoa@gmail.com> wrote:

> It takes about 10 min for processing lines likes:
>
>   Reloading stale files.el
>   Loading /home/user/devel/emacs/emacs-bzr/trunk/lisp/files.el (source)...
>   Reloading stale loaddefs.el
>   Loading /home/user/devel/emacs/emacs-bzr/trunk/lisp/loaddefs.el (source)...
>
> which printed many times (on "make" command in out of source build).
> loaddefs.el is about 1.2 MiB files.el is about 300 KiB.
>
> So my Emacs build with -j2 still not complete for second evening after job...
>
> Am I anything missing in current Emacs design?

Just built with "make -j2"  on Gnu/linux

,----[emacs-24 branch]
| real	7m24.100s
| user	11m54.270s
| sys	1m24.510s
`----

,----[trunk]
| real	8m5.704s
| user	12m9.180s
| sys	1m26.470s
`----

CPU details:
,----[ cat /proc/cpuinfo | grep "Intel" ]
| vendor_id	: GenuineIntel
| model name	: Intel(R) Core(TM)2 CPU          6700  @ 2.66GHz
| vendor_id	: GenuineIntel
| model name	: Intel(R) Core(TM)2 CPU          6700  @ 2.66GHz
`----

--
ఎందరో మహానుభావులు అందరికి వందనములు
YYR

Re: Compilation of Emacs trunk (24) too slow.

[Oleksandr Gavenko]

On 2012-12-18, Yagnesh Raghava Yakkala wrote:

> On 12月 19 2012, Oleksandr Gavenko wrote:
>
>> It takes about 10 min for processing lines likes:
>>
>>   Reloading stale files.el
>>   Loading /home/user/devel/emacs/emacs-bzr/trunk/lisp/files.el (source)...
>>   Reloading stale loaddefs.el
>>   Loading /home/user/devel/emacs/emacs-bzr/trunk/lisp/loaddefs.el (source)...
>>
>> which printed many times (on "make" command in out of source build).
>> loaddefs.el is about 1.2 MiB files.el is about 300 KiB.
>>
>> So my Emacs build with -j2 still not complete for second evening after job...
>>
>> Am I anything missing in current Emacs design?
>
> Just built with "make -j2"  on Gnu/linux
>
> ,----[emacs-24 branch]
> | real	7m24.100s
> | user	11m54.270s
> | sys	1m24.510s
> `----
>
> ,----[trunk]
> | real	8m5.704s
> | user	12m9.180s
> | sys	1m26.470s
> `----

Ok, I get it.

I configure with:

  opt='--enable-checking=all --enable-autodepend --enable-dependency-tracking'

I don't check which of this option make Emacs (temacs or how it called during
build) tooooo slow.

I think that this is a '--enable-checking=all' but don't try. Just disable all
of them. Am I right?

From 'configure':

  --enable-dependency-tracking   do not reject slow dependency extractors

  --enable-checking[=LIST]
                          enable expensive run-time checks. With LIST, enable
                          only specific categories of checks. Categories are:
                          all,yes,no. Flags are: stringbytes, stringoverrun,
                          stringfreelist, xmallocoverrun, conslist, glyphs

-- 
Best regards!

Re: Compilation of Emacs trunk (24) too slow.

[Yagnesh Raghava Yakkala]

> I think that this is a '--enable-checking=all' but don't try. Just disable all
> of them. Am I right?

Not sure. I never bothered to check them and I simply don't give any configure
flags (except --prefix)

On Ubuntu I have a long script which does simply the following.. 

#+begin_src sh
sudo apt-get build-dep emacs23          # first time only
git clone git://repo.or.cz/emacs.git    # or git pull
cd emacs
./autogen.sh
./configure --prefix=~/local/emacs-commit-hash
make bootstrap 
make install
#+end_src

Thanks.,
-- 
ఎందరో మహానుభావులు అందరికి వందనములు
YYR