Filed: https://bugs.openjdk.java.net/browse/JDK-8065791
On 11/13/2014 10:59 PM, Steven R. Loomis wrote: > Late to the party, but please note that the README-builds.html *still* > says that ccache is great and you should install it. Doesn't mention > *anything* about ccache being off by default or `--enable-ccache` being > needed. In fact, configure actively disables ccache if you use a > symlink to ccache for gcc. > > I'll file a ticket if need be to fix the docs. Bit by this change- > ccache does much, much more good than harm for people who are making > small changes to big projects. Not going to argue the default, but > please keep the capability around if possible. > > -s (doing an overnight build to prime the ccache pump) > > On 1/28/2014 3:31 PM, Magnus Ihse Bursie wrote: >> Bug: https://bugs.openjdk.java.net/browse/JDK-8027584 >> >> While ccache can be used to speed up recompilations, there are also >> several issues with ccache. Old versions does not work correctly for >> the jdk (we try to detect that). It does not work well on other >> platforms than Linux; on Windows it does not work at all. Nevertheless >> is ccache enabled on Windows if it is installed, which it apparently >> tends to be with Cygwin nowadays, requiring the use of >> --disable-ccache to avoid compilation failure. >> >> In many circumstances ccache also does not provide any performance >> benefit. For instance, new compilations gets a performance hit. Only >> recompilations benefits. >> >> It is better to turn this upside down. This patch makes ccache >> disabled by default, on all platforms. If you want ccache and are sure >> you are in a situation that benefits from it, then you can enable it. >> It also removes the output in configure hinting that ccache should be >> used. >> >> WebRev: >> http://cr.openjdk.java.net/~ihse/JDK-8027584-disable-ccache-by-default/webrev.01 >> >> /Magnus
