With the development of multi-core processors

it becomes a key problem to transmit concurrent trace data simultaneously to on-chip buffer under bandwidth constraint.To deal with the problem

we propose a Map-based Self-regulation Location Selection (MSLS) algorithm.This algorithm locates multiple trace buffers in interconnection fabrics under the bandwidth constraint

and reduces the average distance between trace sources and trace buffers.Experimental results show our algorithm can achieve high efficiency for post-silicon debug.