write-back cache Last modified: Friday, November 09, 2001
A caching method in which modifications to data in the cache aren't copied to the cache source until absolutely necessary. Write-back caching is available on many microprocessors, including all Intel processors since the 80486. With these microprocessors, data modifications (e.g., write operations) to data stored in the L1 cache aren't copied to main memory until absolutely necessary. In contrast, a write-through cache performs all write operations in parallel -- data is written to main memory and the L1 cache simultaneously. Write-back caching yields somewhat better performance than write-through caching because it reduces the number of write operations to main memory. With this performance improvement comes a slight risk that data may be lost if the system crashes. A write-back cache is also called a copy-back cache.
•E-mail this definition to a colleague• Sponsored listings Promotional Business Pens- 50% Off - Custom Business and Promotional Pens Starting at $2.49. No Set-Up Fees. No Minimums! Upload Photos & Logos. Personalize Your Pens Today! Personalized Promotional Pens from Amsterdam Printing - Personalized Pens, Customizable Laser Engraved Pens, & More Only At Amsterdam Printing. Since 1898. Personalized Writing Instruments - Online provider of personalized writing instruments, featuring a wide selection of imprinted pens with a custom logo or message. For internet.com pages about write-back cache . Also check out the following links! Sponsored listings Promotional Pens & Pencils - Supplies promotional products with custom logo printing including promotional pens and other writing instruments. EssayEdge.com: Pharmaceuticals Writing & Editorial Services - Harvard-educated editors critique and edit admissions essays and personal statements. Offers 100+ sample application essays and tips. Writing Courses Online - Career Advancement w/ Professional Writing Certification Online. Find Schools Offering Writing Training and Certification - Top schools offering quality writing education, training and certification. Degree.net makes learning easy. GlobalSpec.com: Backing Ring Gaskets - Provides database of suppliers for Backing Ring Gaskets. Browse catalogs and view technical information.	Caches Data Storage x86 Microprocessors cache write Give Us Your Feedback Shopping write back cache Products Compare Products,Prices and Stores Shop by Category: Cache Memory 4 Model Matches Tape Drives 5 Model Matches