Performance for Linux on Power Systems servers

You can adjust the performance of your system and applications by tuning some of the variables on your system. For example, you can synchronize threads, disable processor-heavy services, apply new or updated patches, and so on.

For other performance-related information for Linux on Power, see the Linux on IBM Power Systems developer portal.

Improving performance with IBM Advance Toolchain for Linux on Power
The IBM Advance Toolchain for Linux on Power provides early and easy access to libraries and the latest compiler technologies for Linux distributions. Over time, these libraries and latest compiler technologies are integrated into the shipping distributions. However, the IBM Advance Toolchain for Linux on Power contains the latest tested and supported GNU Compiler Collection (GCC) compiler versions, tailored for Power® systems, and packaged together with an expanding set of processor-tuned libraries, allowing you to take advantage of the latest technology without waiting.
Getting started with OProfile on Power
This topic gives you the information that you need to get started quickly with OProfile on Power Systems™ servers running Linux.
Memory assignment and allocation
In some cases, the amount of memory you assign to a partition is not the same as the amount of memory that is actually allocated by the system.
64-bit DMA performance benefits
On Power Systems servers, certain PCIe slots support 64-bit direct memory access (DMA), which improves I/O operations so that there is less system usage and better performance.
Configuring Linux servers for Sybase IQ
Linux configuration considerations that affect performance of Sybase IQ on a Linux system include kernel parameters, volume management, file systems, and I/O tuning.
InfiniBand how-to topics
InfiniBand is available on both IBM® x86 and Power Systems servers running Linux. IBM InfiniBand adapters can be used to create a high bandwidth, low latency communication network for your applications.