Specifications

April 2012 v1 AMD Opteron™ 6200 Linux Tuning Guide
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5.0 Known Issues
5.1 Address Space Layout Randomization (ASLR)
The AMD Opteron™ 4200/6200 Series processors have a shared Level-1 instruction-cache that, under specific
circumstances, leads to different performance characteristics to previous processor generations.
Running specific scenarios under Linux on Family 15h-based systems can cause a rapid increase of cache
cross-invalidations leading to diminished system performance due to system configuration.
To learn how to avoid the ASLR issue and more about how this shared L1 cache micro-architecture works,
refer to AMD’s whitepaper Shared Level-1 instruction-cache performance on AMD family 15h CPUs located at:
http://developer.amd.com/Assets/SharedL1InstructionCacheonAMD15hCPU.pdf.