IBM POWER7

Configuration: IBM Power 730 Express server: POWER7 cpu, 3.55 GHz, 2 sockets (8 cores per socket, 16-cores total, 64-threads total), one Memory Controller per socket, 64 GB RDIMM DDR3 (Registered DDR3-1066 CL7).

64 KB pages mode (Linux)

Size Latency Description
32 K 2 ERAT + L1
256 K 8 +6 (L2)
4 M 24 +16 (L3-Local)
32 M 158 +14 (ERAT miss -> TLB hit) + 120 (L3-Global)
... 180 + 70 ns +22 (TLB miss -> L2) + 70 ns (RAM)

Branch misprediction penalty = 15 cycles.

Execution Latency = 2 cycles for simple dependent integer instructions !!!

Links

Power7 at Wikipedia

"IBM POWER7 multicore server processor". B. SINHAROY ET AL.