Sometimes I have to put text on a path

Wednesday, July 6, 2011

"Task manager" of Google Chrome; le gestionnaire de tâches;monitor the amount of memory taken up; accès à l'espace mémoire occupé

Click the wrench icon on the browser toolbar.
Select Tools.
Select Task manager.

Use the Task Manager to get details about a specific process running in Google Chrome, or to force a misbehaving tab or application to close.

For each active item in Google Chrome, you can monitor the amount of memory taken up, the amount of CPU used, and the network activity (bytes sent and received).

Ref:
http://www.google.com/support/chrome/bin/answer.py?answer=95672

--------an example:
-the post editor of blogger takes 70MB.
-a rich complex HTML5 page ("HTML5 showcase"; local with google app engine) takes around 70MB.
"HTML5 showcase":
http://ex-ample.blogspot.com/2011/06/with-google-app-engine-there-are-no.html
http://www.htmlfivewow.com/slide1

The Gears team implemented a multi-process architecture in Chrome where, by default, a separate process is allocated to each site instance and plugin, a procedure referred to as process isolation. This prevents tasks from interfering with each other, increasing security and stability. An attacker successfully gaining access to one application cannot gain access to others, and failure in one instance results in a Sad Tab screen, similar to the well-known Sad Mac, but only a single tab crashes instead of the whole application. This strategy exacts a fixed per-process cost up front, but results in less memory bloat overall as fragmentation is confined to each instance and no longer requires further memory allocations.

Chrome includes a process management utility called Task Manager which allows the user to see what sites and plugins are using the most memory, downloading the most bytes and over-utilizing the CPU and provides the ability to terminate them.

Firefox and Safari are also adopting this architecture, meaning that most common browsers use a multi-process architecture.

---------en français:

Le gestionnaire de tâches permet l'accès à des détails à propos d'un processus en cours dans Google Chrome (ou pour forcer la fermeture d'un onglet ou d'une application défaillants).

Pour ouvrir le gestionnaire de tâches
1/Cliquez sur l'icône représentant une clé à molette  qui est située dans la barre d'outils du navigateur à droite.
Sélectionnez Outils.
Sélectionnez Gestionnaire de tâches.

Pour chaque élément actif dans Google Chrome, vous pouvez "surveiller" l'espace mémoire occupé, l'utilisation du processeur et l'activité réseau (octets envoyés et reçus).

Le gestionnaire permet d'arrêter un processus:
pour forcer la fermeture d'une page Web ou d'une application dans Google Chrome, sélectionnez la page Web dans le gestionnaire, puis cliquez sur le bouton Arrêter le processus.

No comments:

Post a Comment