JP5324934B2 - 情報処理装置および情報処理方法 - Google Patents
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- G06—COMPUTING OR CALCULATING; COUNTING
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- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
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- G06F9/4806—Task transfer initiation or dispatching
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Description
図1は、本実施の形態を適用できる情報処理装置の構成例を示している。情報処理装置10は、マイクロプロセッサユニット18、入出力装置(I/O)42、メインメモリ44、補助記憶装置(HDD)46を備え、それぞれがバス48を介して接続される。マイクロプロセッサユニット18は、複数の処理ユニット22a、22b、・・・、22nがそれぞれ内部バス19を介して接続する構成を有する。
実施の形態1は、優先度や実行時間などに基づき、ユーザレベル管理部25のタスク割り当て部26が各タスクを適宜処理ユニットに割り当てていくことによりスケジュールを生成していく態様であった。本実施の形態では、各処理ユニットが自律的にタスクを選択して実行する自律的なユーザレベルスケジューリングの機構において、実施の形態1の如く、システム処理をスケジュールに則った処理ユニットで実行させる。
Claims (9)
- プログラムのタスクを処理するタスク処理部と、
実行中のアプリケーションプログラムによってシステムレベルのプログラムが呼び出された場合に、当該システムレベルのプログラムのタスクに、処理要求を発行してから実行開始までに許容される実行期限を実行条件として付加したうえ処理要求を発行する処理要求部と、
前記処理要求部が処理要求を発行した前記システムレベルのプログラムのタスクを、前記タスク処理部における、実行中のアプリケーションプログラムのタスクの処理予定を決定づけるユーザレベルのスケジュール制御に組み入れるタスク割り当て部と、
前記ユーザレベルのスケジュール制御によって前記タスク処理部における前記システムレベルのプログラムのタスクの処理が前記実行期限内に開始されるか否かを監視する実行監視部と、
前記システムレベルのプログラムのタスクの処理が実行期限内に開始されないと判定された際に、前記処理予定によらず前記タスク処理部の処理を前記システムレベルのプログラムのタスクに切り替える実行制御部と、
を備えたことを特徴とする情報処理装置。 - 前記実行監視部は、前記タスク処理部から、前記システムレベルのプログラムのタスク処理を受け入れ可能である旨の通知が、前記実行期限内になされなかった場合に、前記システムレベルのプログラムのタスクの処理が実行期限内に開始されないと判定することを特徴とする請求項1に記載の情報処理装置。
- 前記タスク割り当て部は、前記システムレベルのプログラムの処理内容の種別に対してあらかじめ設定された優先度、実行期限、動作周期、および実行時間、の少なくともいずれかの情報を特定し、特定した情報に基づき、前記ユーザレベルのスケジュール制御に基づく当該システムレベルのプログラムのタスクの処理予定を定めることを特徴とする請求項1または2に記載の情報処理装置。
- 前記タスク割り当て部は、ユーザレベルのスケジュール制御によるタスクの処理予定を前記タスク処理部ごとに生成し、前記処理要求部が前記システムレベルのプログラムのタスクの処理要求を発行した際、当該システムレベルのプログラムのタスクを前記タスク処理部ごとの処理予定のいずれかに挿入し、
前記タスク処理部は、前記タスク割り当て部が生成した処理予定に則りタスクを処理することを特徴とする請求項1から3のいずれかに記載の情報処理装置。 - 前記タスク割り当て部は、タスクをメモリのタスクキューに格納し、前記処理要求部が前記システムレベルのプログラムのタスクの処理要求を発行した際、当該タスクに係る情報を、ユーザレベルのタスクと同様の情報に変換したうえ、前記メモリのタスクキューに格納し、
前記タスク処理部は、前記タスクキューに格納されたタスクから選択したタスクを処理することを特徴とする請求項1または2に記載の情報処理装置。 - 前記タスク割り当て部は、前記システムレベルのプログラムのタスクに係る情報をユーザレベルのタスクと同様の情報に変換する際、当該システムレベルのプログラムを呼び出したアプリケーションプログラムにおいて当該システムレベルのプログラムのタスクに対し設定された優先度および割り当てることのできるタスク処理部の数の少なくともいずれかを、変換後の情報に付加することを特徴とする請求項5に記載の情報処理装置。
- 前記処理要求部は、実行中のアプリケーションプログラムにおいて、呼び出すシステムレベルのプログラムのタスクを前記タスク処理部におけるユーザレベルのスケジュール制御へ組み入れない旨の設定がなされていた場合、前記処理要求を発行せず、前記実行制御部は、いずれかの前記タスク処理部の処理を、呼び出されたシステムレベルのプログラムのタスクへ切り替えることを特徴とする請求項1に記載の情報処理装置。
- 実行すべきプログラムのタスクをプロセッサにおいて処理するステップと、
実行中のアプリケーションプログラムによってシステムレベルのプログラムが呼び出された場合、当該システムレベルのプログラムのタスクに、処理要求を発行してから実行開始までに許容される実行期限を実行条件として付加したうえ処理要求を発行するステップと、
処理要求が発行された前記システムレベルのプログラムのタスクを、実行中のアプリケーションプログラムのタスクの処理予定を決定づけるユーザレベルのスケジュール制御に組み入れるステップと、
前記ユーザレベルのスケジュール制御によって前記システムレベルのプログラムのタスクの処理が前記実行期限内に開始されるか否かを監視するステップと、
前記システムレベルのプログラムのタスクの処理が実行期限内に開始されないと判定された際、前記処理予定によらず、前記プロセッサにおけるタスクの処理を、前記システムレベルのプログラムのタスクに切り替えるステップと、
を含むことを特徴とする情報処理方法。 - 実行すべきプログラムのタスクを処理する機能と、
実行中のアプリケーションプログラムによってシステムレベルのプログラムが呼び出された場合、当該システムレベルのプログラムのタスクに、処理要求を発行してから実行開始までに許容される実行期限を実行条件として付加したうえ処理要求を発行する機能と、
処理要求が発行された前記システムレベルのプログラムのタスクを、実行中のアプリケーションプログラムのタスクの処理予定を決定づけるユーザレベルのスケジュール制御に組み入れる機能と、
前記ユーザレベルのスケジュール制御によって前記システムレベルのプログラムのタスクの処理が前記実行期限内に開始されるか否かを監視する機能と、
前記システムレベルのプログラムのタスクの処理が実行期限内に開始されないと判定された際、前記処理予定によらず、前記タスクを処理する機能におけるタスクの処理を、前記システムレベルのプログラムのタスクに切り替える機能と、
をコンピュータに実現させることを特徴とするコンピュータプログラム。
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| JP2009008162A JP5324934B2 (ja) | 2009-01-16 | 2009-01-16 | 情報処理装置および情報処理方法 |
| US13/142,156 US8793695B2 (en) | 2009-01-16 | 2009-09-29 | Information processing device and information processing method |
| PCT/JP2009/004995 WO2010082244A1 (ja) | 2009-01-16 | 2009-09-29 | 情報処理装置および情報処理方法 |
| CN200980154610.4A CN102282543B (zh) | 2009-01-16 | 2009-09-29 | 信息处理装置和信息处理方法 |
| EP09838214.6A EP2388699B1 (en) | 2009-01-16 | 2009-09-29 | Information processing device and information processing method |
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| JP2009008162A JP5324934B2 (ja) | 2009-01-16 | 2009-01-16 | 情報処理装置および情報処理方法 |
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| JP2010165259A JP2010165259A (ja) | 2010-07-29 |
| JP5324934B2 true JP5324934B2 (ja) | 2013-10-23 |
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