Deprecated: Creation of dynamic property wpdb::$categories is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/wp-db.php on line 668

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Deprecated: Return type of WP_Theme::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/home/bugyo/public_html/b-log/wp-includes/class-wp-theme.php on line 595

Deprecated: Return type of WP_Theme::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/home/bugyo/public_html/b-log/wp-includes/class-wp-theme.php on line 535

Deprecated: Return type of WP_Theme::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/home/bugyo/public_html/b-log/wp-includes/class-wp-theme.php on line 544

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Deprecated: Return type of WP_REST_Request::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/home/bugyo/public_html/b-log/wp-includes/rest-api/class-wp-rest-request.php on line 960

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Realtek8110S – B-LOG https://blog.bugyo.tk/b-log bugyoのlog。決してblogではない。 Fri, 11 Dec 2009 04:55:16 +0000 en-US hourly 1 https://wordpress.org/?v=5.7.2 GbEの速度 https://blog.bugyo.tk/b-log/archives/305 https://blog.bugyo.tk/b-log/archives/305#respond Thu, 26 Mar 2009 02:22:28 +0000
Deprecated: Creation of dynamic property WP_Term::$cat_ID is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 378

Deprecated: Creation of dynamic property WP_Term::$category_count is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 379

Deprecated: Creation of dynamic property WP_Term::$category_description is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 380

Deprecated: Creation of dynamic property WP_Term::$cat_name is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 381

Deprecated: Creation of dynamic property WP_Term::$category_nicename is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 382

Deprecated: Creation of dynamic property WP_Term::$category_parent is deprecated in /usr/home/bugyo/public_html/b-log/wp-includes/category.php on line 383
http://www.kitcc.org/~bugyo/b-log/?p=305 「CG-SW05GTPLXB」

上ではGbE環境でのFTP転送スループットは最大で34.MB/sだった。

「おしえてブロードバンド 第52回：ギガビットイーサネットってどれくらい速いの？」

では最大で523.56Mb/s、つまり65.445MB/s、こちらのほぼ倍の速度が出ている。

もちろんこちらで計測したときにはファイルには書き込まず、GETしたデータはnullに捨ててた。

チップはRealtek8110SとMarvel88E8053のよう。

どこかにボトルネックがあるのだろうかと思ってlocalにftpしてみたら34MB/sぐらいしか出ていなかった。

どうやらサーバ側のディスクI/Oがボトルネックになっていたよう。

転送用ダミーデータをSATA接続のHDDに移してホスト1→ホスト3をもう一度計測してみた。

ホスト スループット
ホスト1→ホスト2 36.31MB/s

※ホスト1:GbE-PCI2、ホスト2:Intel PRO/1000 MT Mobile Connection

やはりディスクI/Oがボトルネックになっていた。

ネットワーク速度がHDDの速度に追いついているということは遅延を考えなければ非常に快適な環境ということ。

ホスト1はFreeBSDのサーバ機。

カーネルオプションなどでディスクI/Oのスループットが上がったりするかも。

ネットワーク自体の速度はまた計測方法を考えよう。

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