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  2. ps (Unix) - Wikipedia

    en.wikipedia.org/wiki/Ps_(Unix)

    Memory address of the process C or CP: CPU usage and scheduling information COMMAND* Name of the process, including arguments, if any NI: nice value F: Flags PID: Process ID number PPID: ID number of the process's parent process PRI: Priority of the process RSS: Resident set size: S or STAT: Process status code START or STIME: Time when the ...

  3. List of performance analysis tools - Wikipedia

    en.wikipedia.org/wiki/List_of_performance...

    Performance profiler. Shows I/O, communication, floating point operation usage and memory access costs. Supports multi-threaded and multi-process applications - such as those with MPI or OpenMP parallelism and scales to very high node counts. Proprietary CodeAnalyst by AMD: Linux, Windows C, C++, Objective C .NET, Java (works at the executable ...

  4. Process identifier - Wikipedia

    en.wikipedia.org/wiki/Process_identifier

    There are two tasks with specially distinguished process IDs: PID 0 is used for swapper or sched, which is part of the kernel and is a process that runs on a CPU core whenever that CPU core has nothing else to do. [1] Linux also calls the threads of this process idle tasks. [2] In some APIs, PID 0 is also used as a special value that always ...

  5. cgroups - Wikipedia

    en.wikipedia.org/wiki/Cgroups

    cgroups (abbreviated from control groups) is a Linux kernel feature that limits, accounts for, and isolates the resource usage (CPU, memory, disk I/O, etc. [1]) of a collection of processes. Engineers at Google started the work on this feature in 2006 under the name "process containers". [2]

  6. Unix domain socket - Wikipedia

    en.wikipedia.org/wiki/Unix_domain_socket

    For a Unix domain socket, the name is a /path/filename. For an Internet domain socket, the name is an IP address:Port number. In either case, the name is called an address. [3] Two processes may communicate with each other if each obtains a socket. The server process binds its socket to an address, opens a listen channel, and then continuously ...

  7. nice (Unix) - Wikipedia

    en.wikipedia.org/wiki/Nice_(Unix)

    nice is a program found on Unix and Unix-like operating systems such as Linux. It directly maps to a kernel call of the same name. nice is used to invoke a utility or shell script with a particular CPU priority, thus giving the process more or less CPU time than other processes. A niceness of -20 is the lowest niceness, or highest priority.

  8. Program counter - Wikipedia

    en.wikipedia.org/wiki/Program_counter

    The program counter (PC), [1] commonly called the instruction pointer (IP) in Intel x86 and Itanium microprocessors, and sometimes called the instruction address register (IAR), [2] [1] the instruction counter, [3] or just part of the instruction sequencer, [4] is a processor register that indicates where a computer is in its program sequence.

  9. CPUID - Wikipedia

    en.wikipedia.org/wiki/CPUID

    They both provide CPU cache information in a series of sub-leaves selected by ECX - to get information about all the cache levels, it is necessary to invoke CPUID repeatedly, with EAX=4 or 8000'001Dh and ECX set to increasing values starting from 0 (0,1,2,...) until a sub-leaf not describing any caches (EAX[4:0]=0) is found. The sub-leaves that ...