4b1a631b8a
This patch introduces the out-of-band (oob) core monitoring functions. The functions are similar to the channel manager functions. There are function to add and remove cores from the list of cores being monitored. There is a function to initialise the monitor setup, run the monitor thread, and exit the monitor. The monitor thread runs in it's own lcore, and is separate functionality to the channel monitor which is epoll based. THis thread is timer based. It loops through all monitored cores, calculates the branch ratio, scales up or down the core, then sleeps for an interval (~250 uS). The method it uses to read the branch counters is a pread on the /dev/cpu/x/msr file, so the 'msr' kernel module needs to be loaded. Also, since the msr.h file has been made unavailable in recent kernels, we have #defines for the relevant MSRs included in the code. The makefile has a switch for x86 and non-x86 platforms, and compiles stub function for non-x86 platforms. Signed-off-by: David Hunt <david.hunt@intel.com> Acked-by: Radu Nicolau <radu.nicolau@intel.com> |
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| devtools | ||
| doc | ||
| drivers | ||
| examples | ||
| kernel | ||
| lib | ||
| license | ||
| mk | ||
| pkg | ||
| test | ||
| usertools | ||
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| GNUmakefile | ||
| MAINTAINERS | ||
| Makefile | ||
| meson_options.txt | ||
| meson.build | ||
| README | ||
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD-3-Clause license for the core libraries and drivers. The kernel components are GPL-2.0 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org