うちで管理してるLINUXサーバー
ちょっと重いコンテンツを載せたのでメモリの使用量がどのぐらいなのかな?と調査しようとfreeコマンドを使ってみたら空き容量が100MBを切ってる!?
2GBのメモリ組んでるのにそんなばかな!?
ちょっと重いコンテンツを載せたのでメモリの使用量がどのぐらいなのかな?と調査しようとfreeコマンドを使ってみたら空き容量が100MBを切ってる!?
2GBのメモリ組んでるのにそんなばかな!?
コマンドを打った結果はこんな感じで・・・
$free
total used free shared buffers cached
Mem: 2067376 1982852 84524 0 181452 1635836
-/+ buffers/cache: 165564 1901812
Swap: 4192956 0 4192956
Memの項目のfreeは84MB弱
けどいくら重いコンテンツを載せ始めたとはいえまだアクセスそれほどないしそんなはずはない。
とfreeコマンドについて調べてみる。
というか正直に言うとfreeコマンドを使うのは初めてだったのだけど。。。
すると Linuxの場合 ディスクアクセスの内容などもとりあえずメモリーにキャッシュしてるから長い間起動してるとメモリの使用率はすぐこれぐらいになるらしい。
ただあくまでキャッシュしてるだけで他のアプリから要求があれば解放する種類のメモリだからあまり気にしなくてよく 2段目のbuffers/casheの行はこのキャッシュをのぞいた実質の数字が出るのでここを確認すればいいみたい。
というわけで1.9GBあいてることがわかって一安心。
これでまたひとつ賢くなりました。
$free
total used free shared buffers cached
Mem: 2067376 1982852 84524 0 181452 1635836
-/+ buffers/cache: 165564 1901812
Swap: 4192956 0 4192956
Memの項目のfreeは84MB弱
けどいくら重いコンテンツを載せ始めたとはいえまだアクセスそれほどないしそんなはずはない。
とfreeコマンドについて調べてみる。
というか正直に言うとfreeコマンドを使うのは初めてだったのだけど。。。
すると Linuxの場合 ディスクアクセスの内容などもとりあえずメモリーにキャッシュしてるから長い間起動してるとメモリの使用率はすぐこれぐらいになるらしい。
ただあくまでキャッシュしてるだけで他のアプリから要求があれば解放する種類のメモリだからあまり気にしなくてよく 2段目のbuffers/casheの行はこのキャッシュをのぞいた実質の数字が出るのでここを確認すればいいみたい。
というわけで1.9GBあいてることがわかって一安心。
これでまたひとつ賢くなりました。
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