mirror of
https://github.com/Ponce/slackbuilds
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system/earlyoom: Added (The Early OOM Daemon)
Signed-off-by: bedlam <dave@slackbuilds.org>
This commit is contained in:
Charadon
bedlam
parent
fdeee1781c
commit
7cf1544a43
7 changed files with 529 additions and 0 deletions
24
system/earlyoom/README
Normal file
24
system/earlyoom/README
Normal file
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@ -0,0 +1,24 @@
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earlyoom checks the amount of available memory and free swap up to 10
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times a second (less often if there is a lot of free memory). By
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default if both are below 10%, it will kill the largest process
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(highest oom_score). The percentage value is configurable via command
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line arguments.
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To enable it, put this line in your rc.local after running chmod +x on
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/etc/rc.d/rc.earlyoom:
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if [ -x /etc/rc.d/rc.earlyoom ];
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then
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/etc/rc.d/rc.earlyoom start
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fi
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and to have it turnoff at shutdown, simply put this in your
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rc.local_shutdown:
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if [ -x /etc/rc.d/rc.earlyoom ];
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then
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/etc/rc.d/rc.earlyoom stop
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fi
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A log file for it is kept at /var/log/earlyoom.log
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And earlyoom can be configured by modifying /etc/default/earlyoom
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26
system/earlyoom/doinst.sh
Normal file
26
system/earlyoom/doinst.sh
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#!/bin/sh
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config() {
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NEW="$1"
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OLD="$(dirname $NEW)/$(basename $NEW .new)"
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# If there's no config file by that name, mv it over:
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if [ ! -r $OLD ]; then
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mv $NEW $OLD
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elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then # toss the redundant copy
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rm $NEW
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fi
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# Otherwise, we leave the .new copy for the admin to consider...
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}
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preserve_perms() {
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NEW="$1"
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OLD="$(dirname $NEW)/$(basename $NEW .new)"
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if [ -e $OLD ]; then
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cp -a $OLD ${NEW}.incoming
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cat $NEW > ${NEW}.incoming
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mv ${NEW}.incoming $NEW
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fi
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config $NEW
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}
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preserve_perms etc/rc.d/rc.earlyoom.new
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272
system/earlyoom/earlyoom.1
Normal file
272
system/earlyoom/earlyoom.1
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@ -0,0 +1,272 @@
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.\" Automatically generated by Pandoc 2.16.2
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.\"
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.TH "earlyoom" "1" "" "" "General Commands Manual"
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.hy
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.SH NAME
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.PP
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earlyoom - Early OOM Daemon
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.SH SYNOPSIS
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.PP
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\f[B]earlyoom\f[R] [\f[B]OPTION\f[R]]\&...
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.SH DESCRIPTION
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.PP
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The oom-killer generally has a bad reputation among Linux users.
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One may have to sit in front of an unresponsive system, listening to the
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grinding disk for minutes, and press the reset button to quickly get
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back to what one was doing after running out of patience.
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.PP
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\f[B]earlyoom\f[R] checks the amount of available memory and free swap
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up to 10 times a second (less often if there is a lot of free memory).
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If \f[B]both\f[R] memory \f[B]and\f[R] swap are below 10%, it will kill
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the largest process (highest \f[C]oom_score\f[R]).
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The percentage value is configurable via command line arguments.
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.PP
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If there is a failure when trying to kill a process, \f[B]earlyoom\f[R]
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sleeps for 1 second to limit log spam due to recurring errors.
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.SH OPTIONS
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.SS -m PERCENT[,KILL_PERCENT]
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.PP
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set available memory minimum to PERCENT of total (default 10 %).
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.PP
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earlyoom starts sending SIGTERM once \f[B]both\f[R] memory \f[B]and\f[R]
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swap are below their respective PERCENT setting.
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It sends SIGKILL once \f[B]both\f[R] are below their respective
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KILL_PERCENT setting (default PERCENT/2).
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.PP
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Use the same value for PERCENT and KILL_PERCENT if you always want to
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use SIGKILL.
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.PP
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Examples:
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.IP
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.nf
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\f[C]
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earlyoom # sets PERCENT=10, KILL_PERCENT=5
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earlyoom -m 30 # sets PERCENT=30, KILL_PERCENT=15
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earlyoom -m 20,18 # sets PERCENT=20, KILL_PERCENT=18
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\f[R]
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.fi
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.SS -s PERCENT[,KILL_PERCENT]
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.PP
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set free swap minimum to PERCENT of total (default 10 %).
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Send SIGKILL if at or below KILL_PERCENT (default PERCENT/2), otherwise
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SIGTERM.
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.PP
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You can use \f[C]-s 100\f[R] to have earlyoom effectively ignore swap
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usage: Processes are killed once available memory drops below the
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configured minimum, no matter how much swap is free.
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.PP
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Use the same value for PERCENT and KILL_PERCENT if you always want to
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use SIGKILL.
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.SS -M SIZE[,KILL_SIZE]
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.PP
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As an alternative to specifying a percentage of total memory,
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\f[C]-M\f[R] sets the available memory minimum to SIZE KiB.
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The value is internally converted to a percentage.
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If you pass both \f[C]-M\f[R] and \f[C]-m\f[R], the lower value is used.
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Example: Reserve 10% of RAM but at most 1 GiB:
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.IP
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.nf
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\f[C]
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earlyoom -m 10 -M 1048576
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\f[R]
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.fi
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.PP
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earlyoom sends SIGKILL if at or below KILL_SIZE (default SIZE/2),
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otherwise SIGTERM.
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.SS -S SIZE[,KILL_SIZE]
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.PP
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As an alternative to specifying a percentage of total swap, \f[C]-S\f[R]
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sets the free swap minimum to SIZE KiB.
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The value is internally converted to a percentage.
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If you pass both \f[C]-S\f[R] and \f[C]-s\f[R], the lower value is used.
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.PP
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Send SIGKILL if at or below KILL_SIZE (default SIZE/2), otherwise
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SIGTERM.
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.SS -k
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.PP
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removed in earlyoom v1.2, ignored for compatibility
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.SS -i
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.PP
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removed in earlyoom v1.7, ignored for compatibility
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.SS -d
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.PP
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enable debugging messages
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.SS -v
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.PP
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print version information and exit
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.SS -r INTERVAL
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.PP
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Time between printing periodic memory reports, in seconds (default 1.0).
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A memory report looks like this:
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.IP
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.nf
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\f[C]
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mem avail: 21790 of 23909 MiB (91.14%), swap free: 0 of 0 MiB ( 0.00%)
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\f[R]
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.fi
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.PP
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Set to 3600 to print a report every hour, to 86400 to print once a day
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etc.
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Set to 0 to disable printing periodic memory reports.
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Free memory monitoring and low-memory killing runs independently of this
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option at an adaptive poll rate that only depends on free memory.
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Due to the adaptive poll rate, when there is a lot of free memory, the
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actual interval may be up to 1 second longer than the setting.
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.SS -p
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.PP
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Increase earlyoom\[cq]s priority: set niceness of earlyoom to -20 and
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oom_score_adj to -100.
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.PP
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When earlyoom is run through its default systemd service, the
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\f[C]-p\f[R] switch doesn\[cq]t work.
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To achieve the same effect, enter the following three lines into
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\f[C]sudo systemctl edit earlyoom\f[R]:
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.IP
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.nf
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\f[C]
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[Service]
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OOMScoreAdjust=-100
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Nice=-20
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\f[R]
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.fi
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.SS -n
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.PP
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Enable notifications via d-bus.
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.PP
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To actually see the notifications in your GUI session, you need to have
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systembus-notify (https://github.com/rfjakob/systembus-notify) running
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as your user.
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.SS -N /PATH/TO/SCRIPT
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.PP
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Run the given script for each process killed.
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Must be an absolute path.
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.PP
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Within the script, information about the killed process can be obtained
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via the following environment variables:
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.IP
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.nf
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\f[C]
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EARLYOOM_PID Process PID
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EARLYOOM_NAME Process name truncated to 16 bytes (as reported in /proc/PID/comm)
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EARLYOOM_UID UID of the user running the process
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\f[R]
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.fi
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.PP
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WARNING: \f[C]EARLYOOM_NAME\f[R] can contain spaces, newlines, special
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characters and is controlled by the user, or it can be empty!
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Make sure that your notification script can handle that!
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.SS -g
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.PP
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Kill all processes that have same process group id (PGID) as the process
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with excessive memory usage.
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.PP
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For example, with this flag turned on, the whole application will be
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killed when one of its subprocess consumes too much memory (as long as
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they all have the same PGID, of course).
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.PP
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Enable this flag when completely cleaning up the \[lq]entire
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application\[rq] is more desirable, and you are sure that the
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application puts all its processes in the same PGID.
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.PP
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Note that some desktop environments (GNOME, for example) put all desktop
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application in the same process group as \f[C]gnome-shell\f[R].
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earlyoom might kill all such processes including \f[C]gnome-shell\f[R]
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when this flag is turned on.
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.PP
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Be sure to check how your environment behaves beforehand.
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Use
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.IP
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.nf
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\f[C]
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pstree -gT
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\f[R]
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.fi
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.PP
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to show all processes with the PGID in brackets.
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.SS --prefer REGEX
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.PP
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prefer killing processes matching REGEX (adds 300 to oom_score)
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.SS --avoid REGEX
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.PP
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avoid killing processes matching REGEX (subtracts 300 from oom_score)
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.SS --ignore REGEX
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.PP
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ignore processes matching REGEX.
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.PP
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Unlike the --avoid option, this option disables any potential killing of
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the matched processes that might have occurred due to the processes
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attaining a high oom_score.
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.PP
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Use this option with caution as other processes might be sacrificed in
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place of the ignored processes when earlyoom determines to kill
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processes.
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.SS --dryrun
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.PP
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dry run (do not kill any processes)
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.SS -h, --help
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.PP
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this help text
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.SH EXIT STATUS
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.PP
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0: Successful program execution.
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.PP
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1: Other error - inspect message for details
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.PP
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2: Switch conflict.
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.PP
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4: Could not cd to /proc
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.PP
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5: Could not open proc
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.PP
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7: Could not open /proc/sysrq-trigger
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.PP
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13: Unknown options.
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.PP
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14: Wrong parameters for other options.
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.PP
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15: Wrong parameters for memory threshold.
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.PP
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16: Wrong parameters for swap threshold.
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.PP
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102: Could not open /proc/meminfo
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.PP
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103: Could not read /proc/meminfo
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.PP
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104: Could not find a specific entry in /proc/meminfo
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.PP
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105: Could not convert number when parse the contents of /proc/meminfo
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.SH Why not trigger the kernel oom killer?
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.PP
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Earlyoom does not use \f[C]echo f > /proc/sysrq-trigger\f[R] because the
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Chrome people made their browser always be the first (innocent!)
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victim by setting \f[C]oom_score_adj\f[R] very high.
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Instead, earlyoom finds out itself by reading through
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\f[C]/proc/*/status\f[R] (actually \f[C]/proc/*/statm\f[R], which
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contains the same information but is easier to parse programmatically).
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.PP
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Additionally, in recent kernels (tested on 4.0.5), triggering the kernel
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oom killer manually may not work at all.
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That is, it may only free some graphics memory (that will be allocated
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immediately again) and not actually kill any process.
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.SH MEMORY USAGE
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.PP
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About 2 MiB VmRSS.
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All memory is locked using mlockall() to make sure earlyoom does not
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slow down in low memory situations.
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.SH BUGS
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.PP
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If there is zero total swap on earlyoom startup, any \f[C]-S\f[R]
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(uppercase \[lq]S\[rq]) values are ignored, a warning is printed, and
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default swap percentages are used.
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.PP
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For processes matched by \f[C]--prefer\f[R], negative
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\f[C]oom_score_adj\f[R] values are not taken into account, and the
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process gets an effective \f[C]oom_score\f[R] of at least 300.
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See https://github.com/rfjakob/earlyoom/issues/159 for details.
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.SH AUTHOR
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.PP
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The author of earlyoom is Jakob Unterwurzacher
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\[la]jakobunt\[at]gmail.com\[ra].
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.PP
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This manual page was written by Yangfl \[la]mmyangfl\[at]gmail.com\[ra],
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for the Debian project (and may be used by others).
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108
system/earlyoom/earlyoom.SlackBuild
Normal file
108
system/earlyoom/earlyoom.SlackBuild
Normal file
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@ -0,0 +1,108 @@
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#!/bin/bash
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# Slackware build script for earlyoom
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# Copyright 2022 Charadon US
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# All rights reserved.
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#
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# Redistribution and use of this script, with or without modification, is
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# permitted provided that the following conditions are met:
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#
|
||||
# 1. Redistributions of this script must retain the above copyright
|
||||
# notice, this list of conditions and the following disclaimer.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED
|
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# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
||||
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
|
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# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||||
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
||||
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
||||
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
||||
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
||||
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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||||
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cd $(dirname $0) ; CWD=$(pwd)
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PRGNAM=earlyoom
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VERSION=${VERSION:-1.7}
|
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BUILD=${BUILD:-1}
|
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TAG=${TAG:-_SBo}
|
||||
PKGTYPE=${PKGTYPE:-tgz}
|
||||
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||||
if [ -z "$ARCH" ]; then
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||||
case "$( uname -m )" in
|
||||
i?86) ARCH=i586 ;;
|
||||
arm*) ARCH=arm ;;
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||||
*) ARCH=$( uname -m ) ;;
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||||
esac
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||||
fi
|
||||
|
||||
# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
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||||
# the name of the created package would be, and then exit. This information
|
||||
# could be useful to other scripts.
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||||
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
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echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
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||||
exit 0
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||||
fi
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||||
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||||
TMP=${TMP:-/tmp/SBo}
|
||||
PKG=$TMP/package-$PRGNAM
|
||||
OUTPUT=${OUTPUT:-/tmp}
|
||||
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||||
if [ "$ARCH" = "i586" ]; then
|
||||
SLKCFLAGS="-O2 -march=i586 -mtune=i686"
|
||||
LIBDIRSUFFIX=""
|
||||
elif [ "$ARCH" = "i686" ]; then
|
||||
SLKCFLAGS="-O2 -march=i686 -mtune=i686"
|
||||
LIBDIRSUFFIX=""
|
||||
elif [ "$ARCH" = "x86_64" ]; then
|
||||
SLKCFLAGS="-O2 -fPIC"
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||||
LIBDIRSUFFIX="64"
|
||||
else
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||||
SLKCFLAGS="-O2"
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||||
LIBDIRSUFFIX=""
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||||
fi
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||||
set -e
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||||
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||||
rm -rf $PKG
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||||
mkdir -p $TMP $PKG $OUTPUT
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||||
cd $TMP
|
||||
rm -rf $PRGNAM-$VERSION
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||||
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
|
||||
cd $PRGNAM-$VERSION
|
||||
chown -R root:root .
|
||||
find -L . \
|
||||
\( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
|
||||
-o -perm 511 \) -exec chmod 755 {} \; -o \
|
||||
\( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
|
||||
-o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
|
||||
|
||||
|
||||
make PREFIX=/usr
|
||||
make DESTDIR=$PKG PREFIX=/usr install-bin
|
||||
install -Dm644 earlyoom.default $PKG/etc/default/earlyoom
|
||||
install -Dm644 $CWD/earlyoom.1 $PKG/usr/man/man1/earlyoom.1
|
||||
|
||||
|
||||
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la
|
||||
|
||||
find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
|
||||
| cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
|
||||
|
||||
find $PKG/usr/man -type f -exec gzip -9 {} \;
|
||||
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
|
||||
|
||||
install -Dm644 $CWD/rc.earlyoom $PKG/etc/rc.d/rc.earlyoom.new
|
||||
|
||||
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
|
||||
#cp -a <documentation> $PKG/usr/doc/$PRGNAM-$VERSION
|
||||
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
|
||||
|
||||
mkdir -p $PKG/install
|
||||
cat $CWD/slack-desc > $PKG/install/slack-desc
|
||||
cat $CWD/doinst.sh > $PKG/install/doinst.sh
|
||||
|
||||
cd $PKG
|
||||
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE
|
||||
10
system/earlyoom/earlyoom.info
Normal file
10
system/earlyoom/earlyoom.info
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
PRGNAM="earlyoom"
|
||||
VERSION="1.7"
|
||||
HOMEPAGE="https://github.com/rfjakob/earlyoom"
|
||||
DOWNLOAD="https://github.com/rfjakob/earlyoom/archive/v1.7/earlyoom-1.7.tar.gz"
|
||||
MD5SUM="9c567930c60b2ccdc536951b005d413d"
|
||||
DOWNLOAD_x86_64=""
|
||||
MD5SUM_x86_64=""
|
||||
REQUIRES=""
|
||||
MAINTAINER="Charadon"
|
||||
EMAIL="dev@iotib.net"
|
||||
70
system/earlyoom/rc.earlyoom
Normal file
70
system/earlyoom/rc.earlyoom
Normal file
|
|
@ -0,0 +1,70 @@
|
|||
#!/bin/sh
|
||||
set -eu
|
||||
|
||||
. /etc/default/earlyoom
|
||||
|
||||
do_start() {
|
||||
if ps -p "$(cat /var/run/earlyoom.pid)" > /dev/null
|
||||
then
|
||||
echo "earlyoom is already running."
|
||||
else
|
||||
echo "Starting earlyoom..."
|
||||
nohup /usr/bin/earlyoom $EARLYOOM_ARGS > /var/log/earlyoom.log 2>&1 &
|
||||
echo "$!" > /var/run/earlyoom.pid
|
||||
fi
|
||||
}
|
||||
|
||||
do_stop() {
|
||||
if ps -p "$(cat /var/run/earlyoom.pid)" > /dev/null
|
||||
then
|
||||
echo "Stopping earlyoom..."
|
||||
kill -15 "$(cat /var/run/earlyoom.pid)"
|
||||
else
|
||||
echo "earlyoom is not running."
|
||||
fi
|
||||
}
|
||||
|
||||
do_force_stop() {
|
||||
if ps -p "$(cat /var/run/earlyoom.pid)" > /dev/null
|
||||
then
|
||||
echo "Killing earlyoom..."
|
||||
kill -9 "$(cat /var/run/earlyoom.pid)"
|
||||
else
|
||||
echo "earlyoom appears to not be running."
|
||||
fi
|
||||
}
|
||||
|
||||
do_restart() {
|
||||
do_stop
|
||||
do_start
|
||||
}
|
||||
|
||||
do_status() {
|
||||
if ps -p "$(cat /var/run/earlyoom.pid)" > /dev/null
|
||||
then
|
||||
echo "earlyoom is running with pid $(cat /var/run/earlyoom.pid)."
|
||||
else
|
||||
echo "earlyoom is not running."
|
||||
fi
|
||||
}
|
||||
|
||||
case $1 in
|
||||
start)
|
||||
do_start
|
||||
;;
|
||||
stop)
|
||||
do_stop
|
||||
;;
|
||||
restart)
|
||||
do_restart
|
||||
;;
|
||||
force-stop)
|
||||
do_force_stop
|
||||
;;
|
||||
status)
|
||||
do_status
|
||||
;;
|
||||
*)
|
||||
echo "USAGE: rc.earlyoom (start|stop|force-stop|restart|status)"
|
||||
;;
|
||||
esac
|
||||
19
system/earlyoom/slack-desc
Normal file
19
system/earlyoom/slack-desc
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
# HOW TO EDIT THIS FILE:
|
||||
# The "handy ruler" below makes it easier to edit a package description.
|
||||
# Line up the first '|' above the ':' following the base package name, and
|
||||
# the '|' on the right side marks the last column you can put a character in.
|
||||
# You must make exactly 11 lines for the formatting to be correct. It's also
|
||||
# customary to leave one space after the ':' except on otherwise blank lines.
|
||||
|
||||
|-----handy-ruler------------------------------------------------------|
|
||||
earlyoom: earlyoom (The Early OOM Daemon)
|
||||
earlyoom:
|
||||
earlyoom: earlyoom checks the amount of available memory and free swap up to
|
||||
earlyoom: 10 times a second (less often if there is a lot of free memory). By
|
||||
earlyoom: default if both are below 10%, it will kill the largest process
|
||||
earlyoom: (highest oom_score). The percentage value is configurable via
|
||||
earlyoom: command line arguments.
|
||||
earlyoom:
|
||||
earlyoom:
|
||||
earlyoom:
|
||||
earlyoom:
|
||||
Loading…
Reference in a new issue