ping for this series..... thanks a lot bing
On 2018年05月29日 18:58, [email protected] wrote:
From: Bing Niu <[email protected]> This series is to introduce RDT memory bandwidth allocation support by extending current virresctrl implementation. The Memory Bandwidth Allocation (MBA) feature provides indirect and approximate control over memory bandwidth available per-core. This feature provides a method to control applications which may be over-utilizing bandwidth relative to their priority in environments such as the data-center. The details can be found in Intel's SDM 17.19.7. Kernel supports MBA through resctrl file system same as CAT. Each resctrl group have a MB parameter to control how much memory bandwidth it can utilize in unit of percentage. In this series, MBA is enabled by enhancing existing virresctrl implementation. The policy employed for MBA is similar with CAT: The sum of each MBA group's bandwidth dose not exceed 100%. The enhancement of virresctrl include two parts: Patch 1: Add two new structure virResctrlInfoMB and virResctrlAllocMB for collecting host system MBA capability and domain memory bandwidth allocation. Patch 2: On frontend XML parsing, add new element "llc" in cachetune section for MBA allocation. Bing Niu (2): util: Add memory bandwidth support to resctrl conf: Extend cputune/cachetune to support memory bandwidth allocation src/conf/domain_conf.c | 86 +++++++++- src/util/virresctrl.c | 422 ++++++++++++++++++++++++++++++++++++++++++++++--- src/util/virresctrl.h | 5 + 3 files changed, 487 insertions(+), 26 deletions(-)
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