[PATCH] D13524: Performance tweaks for powerpc64 lnt buildbots

[Bill Seurer via llvm-commits]

seurer added a comment.

In http://reviews.llvm.org/D13524#262182, @rengolin wrote:

> The multisample option is obvious, I'm not sure about the -j8. On all my LNT bots, all cores are busy all the time, so if you have 4 cores, I don't think -j8 will help you. If you have 8 cores, than you should change jobs=8, too.


The buildbots are now the only "users" on this system and it has 64 cores though other llvm buildbots also run there.  I have been monitoring it for a while now and running with -j8 should be OK.  In fact, that ought to just about keep everything busy when all the bots are actively running tests.

I did some manual runs of lnt on this system yesterday and using -j8 tremendously reduced the time to run.


http://reviews.llvm.org/D13524