Struct procfs::KPageCount

pub struct KPageCount { /* private fields */ }

Parse physical memory references accessing /proc/kpagecount

Require root or CAP_SYS_ADMIN

Implementations

impl KPageCount

pub fn new() -> ProcResult<Self>

Get a parser from default /proc/kpagecount

Return Err if process is not running as root or don’t have CAP_SYS_ADMIN

pub fn from_custom_root<P: AsRef<Path>>(root: P) -> ProcResult<Self>

Get a parser from custom /proc

Return Err if process is not running as root or don’t have CAP_SYS_ADMIN

pub fn get_count_at_pfn(&mut self, pfn: Pfn) -> ProcResult<u64>

Get the number of references to physical memory at pfn

Return Err if pfn is not in RAM. See crate::iomem() for a list of valid physical RAM addresses

See crate::process::Process::pagemap and crate::process::MemoryPageFlags::get_page_frame_number

pub fn get_count_in_range(&mut self, start: Pfn, end: Pfn) -> ProcResult<Vec<u64>>

Get the number of references to physical memory at for PFNs within start and end PFNs, end is excluded

Return Err if any pfn is not in RAM. See crate::iomem() for a list of valid physical RAM addresses

See crate::process::Process::pagemap and crate::process::MemoryPageFlags::get_page_frame_number