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hardware:raspberry_pi:dietpi:zram_swap [2022/06/17 02:58] – ともやん | hardware:raspberry_pi:dietpi:zram_swap [2022/08/10 00:49] (現在) – [ZRAM の他にさらに Swap を 3072MB 追加する] ともやん |
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===== dietpi-set_swapfile 編 ===== | ===== dietpi-set_swapfile 編 ===== |
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==== ZRAM (428MB) + Swap (3072MB) を設定する方法 ==== | ==== ZRAM (476MB) + Swap (3072MB) を設定する方法 ==== |
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=== ZRAM スワップを 428MB に設定する === | === ZRAM スワップを 476MB に設定する === |
**free** コマンドで RAM サイズを調べる🤔\\ | **free** コマンドで RAM サイズを調べる🤔\\ |
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total used free shared buff/cache available | total used free shared buff/cache available |
<b class=GRN>Mem: 429</b> 109 20 233 299 37 | <b class=GRN>Mem: 477</b> 30 411 1 34 404 |
Swap: 0 0 0 | Swap: 0 0 0 |
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現在の **dietpi-set_swapfile** では ZRAM のサイズは RAM サイズ (429MB) -1 の 428MB まで設定できる😉\\ | 現在の **dietpi-set_swapfile** では ZRAM のサイズは RAM サイズ (477MB) -1 の 476MB まで設定できる😉\\ |
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$ sudo /boot/dietpi/func/dietpi-set_swapfile 428 zram | $ sudo /boot/dietpi/func/dietpi-set_swapfile 476 zram |
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<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> swapoff -a | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> swapoff -a |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> Generating new swap space | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> Generating new swap space |
<b class=HIK>[</b> INFO <b class=HIK>] DietPi-Set_swapfile | Size = 428 MiB</b> | <b class=HIK>[</b> INFO <b class=HIK>] DietPi-Set_swapfile | Size = 476 MiB</b> |
<b class=HIK>[</b> INFO <b class=HIK>] DietPi-Set_swapfile | Path = /dev/zram0</b> | <b class=HIK>[</b> INFO <b class=HIK>] DietPi-Set_swapfile | Path = /dev/zram0</b> |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 1 > /sys/block/zram0/reset | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 1 > /sys/block/zram0/reset |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo '428M' > /sys/block/zram0/disksize | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo '476M' > /sys/block/zram0/disksize |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> chmod 0600 /dev/zram0 | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> chmod 0600 /dev/zram0 |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> mkswap /dev/zram0 | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> mkswap /dev/zram0 |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> swapon /dev/zram0 | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> swapon /dev/zram0 |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 'zram' > /etc/modules-load.d/dietpi-zram-swap.conf | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 'zram' > /etc/modules-load.d/dietpi-zram-swap.conf |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 'SUBSYSTEM=="block", KERNEL=="zram0", ACTION=="add", ATTR{disksize}="428M", RUN+="chmod 0600 /dev/zram0", RUN+="/sbin/mkswap /dev/zram0", RUN+="/sbin/swapon /dev/zram0"' > /etc/udev/rules.d/98-dietpi-zram-swap.rules | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 'SUBSYSTEM=="block", KERNEL=="zram0", ACTION=="add", ATTR{disksize}="476M", RUN+="chmod 0600 /dev/zram0", RUN+="/sbin/mkswap /dev/zram0", RUN+="/sbin/swapon /dev/zram0"' > /etc/udev/rules.d/98-dietpi-zram-swap.rules |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 'swappiness=50' > /etc/sysctl.d/98-dietpi-zram-swap.conf | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> eval echo 'swappiness=50' > /etc/sysctl.d/98-dietpi-zram-swap.conf |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> Setting in <b class=YEL>/boot/dietpi.txt</b> adjusted: <b class=YEL>AUTO_SETUP_SWAPFILE_SIZE=428</b> | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> Setting in <b class=YEL>/boot/dietpi.txt</b> adjusted: <b class=YEL>AUTO_SETUP_SWAPFILE_SIZE=476</b> |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> Desired setting in <b class=YEL>/boot/dietpi.txt</b> was already set: <b class=YEL>AUTO_SETUP_SWAPFILE_LOCATION=zram</b> | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> Desired setting in <b class=YEL>/boot/dietpi.txt</b> was already set: <b class=YEL>AUTO_SETUP_SWAPFILE_LOCATION=zram</b> |
<b class=HIK>[</b> INFO <b class=HIK>] DietPi-Set_swapfile | Setting /tmp tmpfs size: 428 MiB</b> | <b class=HIK>[</b> INFO <b class=HIK>] DietPi-Set_swapfile | Setting /tmp tmpfs size: 476 MiB</b> |
<b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> mount -o remount /tmp | <b class=HIK>[</b> <b class=GRN>OK</b> <b class=HIK>] DietPi-Set_swapfile |</b> mount -o remount /tmp |
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=== さらに Swap を 3072MB 追加する === | === ZRAM の他にさらに Swap を 3072MB 追加する === |
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$ sudo fallocate -l 3072M /var/swap | $ sudo fallocate -l 3072M /var/swap |
$ sudo chmod 0600 /var/swap | $ sudo chmod 0600 /var/swap |
| $ sudo mkswap /var/swap |
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$ sudo swapon /var/swap | $ sudo swapon -v /var/swap |
$ sudo swapon -s | $ sudo swapon -s |
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Filename Type Size Used Priority | Filename Type Size Used Priority |
/dev/zram0 partition 438268 56152 -2 | /dev/zram0 partition 487420 0 -2 |
/var/swap file 3145724 0 -3 | /var/swap file 3145724 0 -3 |
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total used free shared buff/cache available | total used free shared buff/cache available |
Mem: 429 141 43 192 244 46 | Mem: 477 29 405 1 42 402 |
Swap: 3499 55 3444 | Swap: 3499 55 3444 |
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$ echo '/var/swap none swap sw' | sudo tee -a /etc/fstab | $ echo '/var/swap none swap sw 0 0' | sudo tee -a /etc/fstab |
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/var/swap none swap sw | /var/swap none swap sw 0 0 |
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| ※[[https://unix.stackexchange.com/questions/365953/what-sw-means-in-the-fstab-swap-entry-for-mount-options-column|What 'sw' means in the fstab swap entry for 'mount options' column]]\\ |
| [[https://forums.ubuntulinux.jp/viewtopic.php?id=20079|Ubuntu日本語フォーラム / swap fileの設定をfstabへの記述するときの設定値の違いについて]]\\ |
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==== dietpi-set_swapfile の動作... ==== | ==== dietpi-set_swapfile の動作... ==== |
$ sudo fallocate -l 3072M /var/swap | $ sudo fallocate -l 3072M /var/swap |
$ sudo chmod 0600 /var/swap | $ sudo chmod 0600 /var/swap |
| $ sudo mkswap /var/swap |
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</code> | </code> |
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**swapon** に priority **100** を指定する🤤 (大きい priority が優先される)\\ | **swapon** に priority **100** を指定する🤤 (大きい priority が優先される🤔ここでは 100 の zram0 から優先して使われる😻)\\ |
<code autoconf /etc/udev/rules.d/98-dietpi-zram-swap.rules> | <code autoconf /etc/udev/rules.d/98-dietpi-zram-swap.rules> |
SUBSYSTEM=="block", KERNEL=="zram0", ACTION=="add", ATTR{disksize}="428M", RUN+="chmod 0600 /dev/zram0", RUN+="/sbin/mkswap /dev/zram0", RUN+="/sbin/swapon -p 100 /dev/zram0" | SUBSYSTEM=="block", KERNEL=="zram0", ACTION=="add", ATTR{disksize}="428M", RUN+="chmod 0600 /dev/zram0", RUN+="/sbin/mkswap /dev/zram0", RUN+="/sbin/swapon -p 100 /dev/zram0" |