Google's New Search Engine- Caffeine

Google's New Search Engine- Caffeine

Google's New Search Engine- Caffeine

Today, Google announced the completion of its new web indexing system title Caffeine. Google boasts that Caffeine, "provides 50 percent fresher results for web searches than our last index, and it's the largest collection of web content we've offered." Google goes onto explain just how their old index and Caffeine differ:

Our old index had several layers, some of which were refreshed at a faster rate than others; the main layer would update every couple of weeks. To refresh a layer of the old index, we would analyze the entire web, which meant there was a significant delay between when we found a page and made it available to you.

With Caffeine, we analyze the web in small portions and update our search index on a continuous basis, globally. As we find new pages, or new information on existing pages, we can add these straight to the index. That means you can find fresher information than ever beforeno matter when or where it was published.

Google also shares statistics about just how fast Caffeine actually crawls the web:

Caffeine lets us index web pages on an enormous scale. In fact, every second Caffeine processes hundreds of thousands of pages in parallel. If this were a pile of paper it would grow three miles taller every second. Caffeine takes up nearly 100 million gigabytes of storage in one database and adds new information at a rate of hundreds of thousands of gigabytes per day. You would need 625,000 of the largest iPods to store that much information; if these were stacked end-to-end they would go for more than 40 miles.

Not sure what iPods have to do with it. They could of just referenced gigabytes. We're not that stupid. In any case, pretty impressive.

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