Struct procfs::process::Limits

pub struct Limits {
    pub max_cpu_time: Limit,
    pub max_file_size: Limit,
    pub max_data_size: Limit,
    pub max_stack_size: Limit,
    pub max_core_file_size: Limit,
    pub max_resident_set: Limit,
    pub max_processes: Limit,
    pub max_open_files: Limit,
    pub max_locked_memory: Limit,
    pub max_address_space: Limit,
    pub max_file_locks: Limit,
    pub max_pending_signals: Limit,
    pub max_msgqueue_size: Limit,
    pub max_nice_priority: Limit,
    pub max_realtime_priority: Limit,
    pub max_realtime_timeout: Limit,
}

Process limits

For more details about each of these limits, see the getrlimit man page.

Fields

max_cpu_time: Limit

Max Cpu Time

This is a limit, in seconds, on the amount of CPU time that the process can consume.

max_file_size: Limit

Max file size

This is the maximum size in bytes of files that the process may create.

max_data_size: Limit

Max data size

This is the maximum size of the process’s data segment (initialized data, uninitialized data, and heap).

max_stack_size: Limit

Max stack size

This is the maximum size of the process stack, in bytes.

max_core_file_size: Limit

Max core file size

This is the maximum size of a core file in bytes that the process may dump.

max_resident_set: Limit

Max resident set

This is a limit (in bytes) on the processe’s resident set (the number of virtual pages resident in RAM).

max_processes: Limit

Max processes

This is a limit on the number of extant process (or, more precisely on Linux, threads) for the real user rID of the calling process.

max_open_files: Limit

Max open files

This specifies a value one greater than the maximum file descriptor number that can be opened by this process.

max_locked_memory: Limit

Max locked memory

This is the maximum number of bytes of memory that may be locked into RAM.

max_address_space: Limit

Max address space

This is the maximum size of the process’s virtual memory (address space).

max_file_locks: Limit

Max file locks

This is a limit on the combined number of flock locks and fcntl leases that this process may establish.

max_pending_signals: Limit

Max pending signals

This is a limit on the number of signals that may be qeueued for the real user rID of the calling process.

max_msgqueue_size: Limit

Max msgqueue size

This is a limit on the number of bytes that can be allocated for POSIX message queues for the real user rID of the calling process.

max_nice_priority: Limit

Max nice priority

This specifies a ceiling to which the process’s nice value can be raised using setpriority or nice.

max_realtime_priority: Limit

Max realtime priority

This specifies a ceiling on the real-time priority that may be set for this process using sched_setscheduler and sched_setparam.

max_realtime_timeout: Limit

Max realtime timeout

This is a limit (in microseconds) on the amount of CPU time that a process scheduled under a real-time scheduling policy may consume without making a blocking system call.

Trait Implementations

impl Clone for Limits

fn clone(&self) -> Limits

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Limits

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.