Re: make with -j fails

[Thomas Mueller <thomas@chaschperli.ch>]

Am Sun, 04 Jul 2010 15:10:49 -0700 schrieb Sage Weil:

> On Sun, 4 Jul 2010, Thomas Mueller wrote:
> 
>> Am Fri, 02 Jul 2010 07:38:47 -0700 schrieb Sage Weil:
>> 
>> > On Fri, 2 Jul 2010, Thomas Mueller wrote:
>> >> as soon as I try to use the -j option the make fails. tried with -j2
>> >> and - j8
>> >> 
>> >> is it supposed to work to call make with "-j" to speedup the
>> >> compilation time?
>> > 
>> > Yeah.  The ceph_ver.h is autogenerated to include the git commit id,
>> > and the rules are a bit wonky.  I fixed a couple problems and I think
>> > it should be working now.  (I can't be sure, since for some reason I
>> > never see these errors in my environment.)  Can you let me know if
>> > it's better now?  You'll need to rm ceph_ver.h and make clean to be
>> > sure.
>> > 
>> > Thanks!
>> > sage
>> 
>> i've recreated the repo (rm -Rf && git clone && git checkout
>> origin/unstable) and ran "./autogen.sh && ./configure --without-debug
>> --without-hadoop && make -j8"
>> 
>> bails aut with this (but only the first time as Gregory wrote in his
>> mail):
> 
> Ok, I redid the ceph_ver.h rules again and I think I have it working,
> this time with a simpler set of dependencies.  Can you let me know if it
> works for you?
> 
> sage

perfect, now it compiles with -j8 in the first time! 

with -j8: real	0m19.681s, user	0m54.967s, sys	0m13.045s
with -j1: real	1m32.983s, user	1m12.738s, sys	0m18.164s

- Thomas