Merging upstream version 6.8.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 161 deletions

diff --git a/man5/acct.5 b/man5/acct.5
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-.\" Copyright (C) 2008, Michael Kerrisk <mtk.manpages@gmail.com>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH acct 5 2023-10-31 "Linux man-pages 6.7"
-.SH NAME
-acct \- process accounting file
-.SH SYNOPSIS
-.nf
-.B #include <sys/acct.h>
-.fi
-.SH DESCRIPTION
-If the kernel is built with the process accounting option enabled
-.RB ( CONFIG_BSD_PROCESS_ACCT ),
-then calling
-.BR acct (2)
-starts process accounting, for example:
-.P
-.in +4n
-acct("/var/log/pacct");
-.in
-.P
-When process accounting is enabled, the kernel writes a record
-to the accounting file as each process on the system terminates.
-This record contains information about the terminated process,
-and is defined in
-.I <sys/acct.h>
-as follows:
-.P
-.in +4n
-.EX
-#define ACCT_COMM 16
-\&
-typedef u_int16_t comp_t;
-\&
-struct acct {
-    char ac_flag;           /* Accounting flags */
-    u_int16_t ac_uid;       /* Accounting user ID */
-    u_int16_t ac_gid;       /* Accounting group ID */
-    u_int16_t ac_tty;       /* Controlling terminal */
-    u_int32_t ac_btime;     /* Process creation time
-                               (seconds since the Epoch) */
-    comp_t    ac_utime;     /* User CPU time */
-    comp_t    ac_stime;     /* System CPU time */
-    comp_t    ac_etime;     /* Elapsed time */
-    comp_t    ac_mem;       /* Average memory usage (kB) */
-    comp_t    ac_io;        /* Characters transferred (unused) */
-    comp_t    ac_rw;        /* Blocks read or written (unused) */
-    comp_t    ac_minflt;    /* Minor page faults */
-    comp_t    ac_majflt;    /* Major page faults */
-    comp_t    ac_swaps;     /* Number of swaps (unused) */
-    u_int32_t ac_exitcode;  /* Process termination status
-                               (see wait(2)) */
-    char      ac_comm[ACCT_COMM+1];
-                            /* Command name (basename of last
-                               executed command; null\-terminated) */
-    char      ac_pad[\fIX\fP];    /* padding bytes */
-};
-\&
-enum {          /* Bits that may be set in ac_flag field */
-    AFORK = 0x01,           /* Has executed fork, but no exec */
-    ASU   = 0x02,           /* Used superuser privileges */
-    ACORE = 0x08,           /* Dumped core */
-    AXSIG = 0x10            /* Killed by a signal */
-};
-.EE
-.in
-.P
-The
-.I comp_t
-data type is a floating-point value consisting of a 3-bit, base-8 exponent,
-and a 13-bit mantissa.
-A value,
-.IR c ,
-of this type can be converted to a (long) integer as follows:
-.P
-.nf
-    v = (c & 0x1fff) << (((c >> 13) & 0x7) * 3);
-.fi
-.P
-The
-.IR ac_utime ,
-.IR ac_stime ,
-and
-.I ac_etime
-fields measure time in "clock ticks"; divide these values by
-.I sysconf(_SC_CLK_TCK)
-to convert them to seconds.
-.SS Version 3 accounting file format
-Since Linux 2.6.8,
-an optional alternative version of the accounting file can be produced
-if the
-.B CONFIG_BSD_PROCESS_ACCT_V3
-option is set when building the kernel.
-With this option is set,
-the records written to the accounting file contain additional fields,
-and the width of
-.I c_uid
-and
-.I ac_gid
-fields is widened from 16 to 32 bits
-(in line with the increased size of UID and GIDs in Linux 2.4 and later).
-The records are defined as follows:
-.P
-.in +4n
-.EX
-struct acct_v3 {
-    char      ac_flag;      /* Flags */
-    char      ac_version;   /* Always set to ACCT_VERSION (3) */
-    u_int16_t ac_tty;       /* Controlling terminal */
-    u_int32_t ac_exitcode;  /* Process termination status */
-    u_int32_t ac_uid;       /* Real user ID */
-    u_int32_t ac_gid;       /* Real group ID */
-    u_int32_t ac_pid;       /* Process ID */
-    u_int32_t ac_ppid;      /* Parent process ID */
-    u_int32_t ac_btime;     /* Process creation time */
-    float     ac_etime;     /* Elapsed time */
-    comp_t    ac_utime;     /* User CPU time */
-    comp_t    ac_stime;     /* System time */
-    comp_t    ac_mem;       /* Average memory usage (kB) */
-    comp_t    ac_io;        /* Characters transferred (unused) */
-    comp_t    ac_rw;        /* Blocks read or written
-                               (unused) */
-    comp_t    ac_minflt;    /* Minor page faults */
-    comp_t    ac_majflt;    /* Major page faults */
-    comp_t    ac_swaps;     /* Number of swaps (unused) */
-    char      ac_comm[ACCT_COMM]; /* Command name */
-};
-.EE
-.in
-.SH VERSIONS
-Although it is present on most systems, it is not standardized,
-and the details vary somewhat between systems.
-.SH STANDARDS
-None.
-.SH HISTORY
-glibc 2.6.
-.P
-Process accounting originated on BSD.
-.SH NOTES
-Records in the accounting file are ordered by termination time of
-the process.
-.P
-Up to and including Linux 2.6.9,
-a separate accounting record is written for each thread created using
-the NPTL threading library;
-since Linux 2.6.10,
-a single accounting record is written for the entire process
-on termination of the last thread in the process.
-.P
-The
-.I /proc/sys/kernel/acct
-file, described in
-.BR proc (5),
-defines settings that control the behavior of process accounting
-when disk space runs low.
-.SH SEE ALSO
-.BR lastcomm (1),
-.BR acct (2),
-.BR accton (8),
-.BR sa (8)