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【Linux】一時的にSwap領域を増やす

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# swap領域用にファイルをつくる(下記は1GB)
# bs=バッファサイズ(1024 * 1048576 = 1073741824byte = 1GB)
dd if=/dev/zero of=/var/swapfile1 bs=1024 count=1048576
chmod 600 /var/swapfile1

# swap領域作成
mkswap /var/swapfile1 1048576

# swap領域有効化
swapon /var/swapfile1
# 確認
swapon -s

# swap領域を外す
swapoff /var/swapfile1

AWSとか開発サーバとかでたまに
メモリ少ないけどインストール時とかだけなのでとりあえず補ったり。
(PHPとかLaravelとか入れたときの関連で…)

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