Speeding up the build process of OpenJDK

Magnus Ihse Bursie magnus.ihse.bursie at oracle.com
Mon Sep 28 09:22:35 UTC 2015

On 2015-09-28 11:22, Manas Thakur wrote:
> No, it includes the images (make images). But the changes I do are usually only in hotspot.
Building complete images is slower than a default build ("exploded 
image") and most often not needed.

Try doing it in separate steps:
make hotspot
make jdk
make images

and check how long each step takes.


> Regards,
> Manas
>> On 28-Sep-2015, at 2:46 pm, Magnus Ihse Bursie <magnus.ihse.bursie at oracle.com> wrote:
>> On 2015-09-28 10:59, Manas Thakur wrote:
>>> Hello all,
>>> I use OpenJDK 8 built on Mac OS X Yosemite. The compilation process after doing even minor changes is very slow (takes about 15-20 minutes; with ccache enabled). Is it because the gcc version I have to use on Yosemite is older (gcc 4.2 supplied with Xcode 4.6.3)? If yes, any ideas on speeding up the incremental builds?
>> Is this for building only hotspot? E.g., "make hotspot"?
>> /Magnus

More information about the hotspot-dev mailing list