http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47479
Summary: make -j 12 RUNTESTFLAGS="--target_board 'unix{-m32,}'" isn't parallelized Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: testsuite AssignedTo: unassig...@gcc.gnu.org ReportedBy: hjl.to...@gmail.com CC: ja...@redhat.com On Linux/x86-64 with 12 cores, make -j 12 check RUNTESTFLAGS="--target_board 'unix{-m32,}'" takes 1 hour and 44 minutes while make -j 12 check only takes 20 minutes. I got [hjl@gnu-34 bld]$ ls gcc/testsuite g++ gcc gfortran objc [hjl@gnu-34 bld]$ vs [hjl@gnu-34 bld]$ ls gcc/testsuite g++ g++2 gcc1 gcc3 gcc5 gfortran gfortran2 objc g++1 gcc gcc2 gcc4 gcc6 gfortran1 gfortran3 objc1 [hjl@gnu-34 bld]$