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This chapter is from the book

This chapter is from the book

Show Me Adobe Photoshop CSShow Me Adobe Photoshop CS

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This chapter is from the book

This chapter is from the book

Show Me Adobe Photoshop CSShow Me Adobe Photoshop CS

Learn More Buy

Allocating Memory & Image Cache

The Memory & Image Cache preferences, give you control over how much RAM memory is assigned to Photoshop, and how much memory is allocated to screen draws (Image Cache). Photoshop, being a high-performance application, requires a fairly large amount of RAM memory. Adjusting these options can help increase Photoshop's overall speed performance. Photoshop has many names for RAM memory: History States, Undo, Clipboard, and Cache. When you modify the cache settings, you are increasing or decreasing the amount of RAM Photoshop uses for various tasks. Experimentation is the key here. Try different settings and record Photoshop's performance. By fine-tuning Photoshop's engine, you increase it's overall speed, and you'll get more design miles to the gallon.

Allocate Memory & Image Cache Options

  1. Click the Edit (Win) or Photoshop (Mac) menu, and then point to Preferences.

  2. Click Memory & Image Cache.

  3. Select the Cache Settings options you want to use:

    • Cache Levels. Select a number from 1 to 8.

    • Style. For a more accurate Histogram, leave this option unchecked.

    Figure 3.15Figure 3.15

    NOTE

    See Also

    See "Managing System Requirements," on page 3 for information on RAM and other system needs.

    NOTE

    Setting the Cache Levels

    Cache Levels are screen redraws. It's how many versions of the current active document Photoshop saves. When you're working on large documents, Cache Levels helps speed up the redraw function, and makes image manipulation proceed faster. However, they are held primarily in RAM memory, so the more Cache Levels you select, the less RAM memory is available for other Photoshop functions.

  4. Enter the percentage of RAM used in the Maximum Used By Photoshop box.

  5. Photoshop needs RAM memory to work efficiently (5 times the size of the open document).

    6. NOTE

    Important!

    Any setting changes made for allocating memory and image caching will take place the next time you start Photoshop. Please see the message at the bottom of the screen.

  6. Click OK.

    7. Figure 3.16Figure 3.16

NOTE

Important!

Never select 100 percent Memory Usage. Selecting 100 percents gives Photoshop your entire available RAM, leaving nothing for the operating system or any other open programs. If you are experiencing more than your usual share of Photoshop crashes, experiment with reducing memory usage.

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Other Collection and Use of Information


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Children


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Marketing


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Correcting/Updating Personal Information


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Supplemental Privacy Statement for California Residents


California residents should read our Supplemental privacy statement for California residents in conjunction with this Privacy Notice. The Supplemental privacy statement for California residents explains Pearson's commitment to comply with California law and applies to personal information of California residents collected in connection with this site and the Services.

Sharing and Disclosure


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Links


This web site contains links to other sites. Please be aware that we are not responsible for the privacy practices of such other sites. We encourage our users to be aware when they leave our site and to read the privacy statements of each and every web site that collects Personal Information. This privacy statement applies solely to information collected by this web site.

Requests and Contact


Please contact us about this Privacy Notice or if you have any requests or questions relating to the privacy of your personal information.

Changes to this Privacy Notice


We may revise this Privacy Notice through an updated posting. We will identify the effective date of the revision in the posting. Often, updates are made to provide greater clarity or to comply with changes in regulatory requirements. If the updates involve material changes to the collection, protection, use or disclosure of Personal Information, Pearson will provide notice of the change through a conspicuous notice on this site or other appropriate way. Continued use of the site after the effective date of a posted revision evidences acceptance. Please contact us if you have questions or concerns about the Privacy Notice or any objection to any revisions.

Last Update: November 17, 2020