Run test cases with longer timeout first

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Run test cases from different architectures in parallel

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Merge branch 'mjj/amd64' into amd64-smp
primer.c::total from 1000 to 10,  and update related primer.testspec