Use 3 threads in linux ci (#4733)
Use 3 threads in linux ci (#4733)


besser82/shogun,geektoni/shogun,shogun-toolbox/shogun,lambday/shogun,besser82/shogun,lambday/shogun,besser82/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,besser82/shogun,besser82/shogun,geektoni/shogun,geektoni/shogun,shogun-toolbox/shogun,geektoni/shogun,lambday/shogun,lambday/shogun,besser82/shogun,lambday/shogun,lambday/shogun,geektoni/shogun,geektoni/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun