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Add a mon_data directory for the root rdtgroup and all other rdtgroups. The directory holds all of the monitored data for all domains and events of all resources being monitored. The mon_data itself has a list of directories in the format mon_<domain_name>_<domain_id>. Each of these subdirectories contain one file per event in the mode "0444". Reading the file displays a snapshot of the monitored data for the event the file represents. For ex, on a 2 socket Broadwell with llc_occupancy being monitored the mon_data contents look as below: $ ls /sys/fs/resctrl/p1/mon_data/ mon_L3_00 mon_L3_01 Each domain directory has one file per event: $ ls /sys/fs/resctrl/p1/mon_data/mon_L3_00/ llc_occupancy To read current llc_occupancy of ctrl_mon group p1 $ cat /sys/fs/resctrl/p1/mon_data/mon_L3_00/llc_occupancy 33789096 [This patch idea is based on Tony's sample patches to organise data in a per domain directory and have one file per event (and use the fp->priv to store mon data bits)] Signed-off-by: Vikas Shivappa <vikas.shivappa@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: ravi.v.shankar@intel.com Cc: tony.luck@intel.com Cc: fenghua.yu@intel.com Cc: peterz@infradead.org Cc: eranian@google.com Cc: vikas.shivappa@intel.com Cc: ak@linux.intel.com Cc: davidcc@google.com Cc: reinette.chatre@intel.com Link: http://lkml.kernel.org/r/1501017287-28083-20-git-send-email-vikas.shivappa@linux.intel.com
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.