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Posted to issues@openoffice.apache.org by bu...@apache.org on 2016/07/31 17:07:02 UTC

[Issue 117845] [gbuild] invalid link-target dep-files can be generated

https://bz.apache.org/ooo/show_bug.cgi?id=117845

damjan@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
             Status|RESOLVED                    |REOPENED
   Target Milestone|4.0.0                       |---
                 CC|                            |damjan@apache.org
          Developer|---                         |Research
         Difficulty|                            |

--- Comment #3 from damjan@apache.org ---
This patch causes a MASSIVE build performance regression on Windows, roughly
DOUBLING the total build time in branches/gbuild-reintegration, and increasing
the main/sw build time almost 6-fold, from 38 minutes to 218:


r1409590 in braches/gbuild, merged in r1735004 in branches/gbuild-reintegration

gnumake4: #i117845#: LinkTarget.mk: refactor dep-files:
 introduce dependency from object dep-file to object.



It is sufficient to patch only the CxxObject section in Linktarget.mk to
reproduce it.

Parallelization has little effect: "make -j4" on a 4 core box is only slightly
faster than -j2 (187 minutes vs 218), even though 4 instances of cl.exe are
found running on sporadic checks.

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