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Test Your Knowledge in Computers #825
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The term API seems to appear for the first time in the article of Ira W. Cotton, Data structures and techniques for remote computer graphics, published in 1968.
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pmap(1) [osx man page]

PMAP(1)                                                            User Commands                                                           PMAP(1)

NAME
pmap - report memory map of a process SYNOPSIS
pmap [options] pid [...] DESCRIPTION
The pmap command reports the memory map of a process or processes. OPTIONS
-x, --extended Show the extended format. -d, --device Show the device format. -q, --quiet Do not display some header or footer lines. -A, --range low,high Limit results to the given range to low and high address range. Notice that the low and high arguments are single string separated with comma. -X Show even more details than the -x option. WARNING: format changes according to /proc/PID/smaps -XX Show everything the kernel provides -p, --show-path Show full path to files in the mapping column -c, --read-rc Read the default configuration -C, --read-rc-from file Read the configuration from file -n, --create-rc Create new default configuration -N, --create-rc-to file Create new configuration to file -h, --help Display help text and exit. -V, --version Display version information and exit. EXIT STATUS
0 Success. 1 Failure. 42 Did not find all processes asked for. SEE ALSO
ps(1), pgrep(1) STANDARDS
No standards apply, but pmap looks an awful lot like a SunOS command. REPORTING BUGS
Please send bug reports to <procps@freelists.org> procps-ng September 2012 PMAP(1)

Check Out this Related Man Page

PMAP(9) 						   BSD Kernel Developer's Manual						   PMAP(9)

NAME
pmap -- machine-dependent portion of virtual memory subsystem SYNOPSIS
#include <sys/param.h> #include <vm/vm.h> #include <vm/pmap.h> DESCRIPTION
The pmap module is the machine-dependent portion of the FreeBSD VM (Virtual Memory) sub-system. Each function documented herein must have its own architecture-dependent implementation. The pmap module is responsible for managing hardware-dependent objects such as page tables, address maps, TLBs, etc. Machine-dependent code must provide the header file <machine/pmap.h>. This file contains the definition of the pmap structure: struct pmap { /* Contents defined by pmap implementation. */ }; typedef struct pmap *pmap_t; This header file may also define other data structures used by the pmap implementation. The header file <vm/pmap.h> defines a structure for tracking pmap statistics (see below). This structure is defined as: struct pmap_statistics { long resident_count; /* number of mapped pages */ long wired_count; /* number of wired pages */ }; The implementation's struct pmap must contain an instance of this structure having the name pm_stats, and it must be updated by the implemen- tation after each relevant pmap operation. SEE ALSO
pmap(9), pmap_activate(9), pmap_clear_modify(9), pmap_copy(9), pmap_copy_page(9), pmap_enter(9), pmap_extract(9), pmap_extract_and_hold(9), pmap_growkernel(9), pmap_init(9), pmap_init2(9), pmap_is_modified(9), pmap_is_prefaultable(9), pmap_map(9), pmap_mincore(9), pmap_object_init_pt(9), pmap_page_exists_quick(9), pmap_page_init(9), pmap_pinit(9), pmap_pinit0(9), pmap_pinit2(9), pmap_protect(9), pmap_qenter(9), pmap_qremove(9), pmap_release(9), pmap_remove(9), pmap_remove_all(9), pmap_remove_pages(9), pmap_resident_count(9), pmap_ts_referenced(9), pmap_unwire(9), pmap_wired_count(9), pmap_zero_area(9), pmap_zero_idle(9), pmap_zero_page(9), vm_map(9) AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>. BSD
August 3, 2014 BSD

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