No-one connected to the show has commented, but the venue apologised for the late start via its Twitter feed saying: "Justin Bieber is now on stage and apologises for the lateness of his show".
The Brahma15 is a 21, 000 DMIP Quad-core ARMv7-A instruction set compatible multiprocessor. 32KB instruction and 32KB data caches per processor are backed by a shared 2MB L2 cache and feed the multi-issue, out-of-order superscalar 15-stage plus write back pipeline of the Brahma15.