Cache Timeout Preferences | ||||||
OmniWeb stores (or caches) the HTML, images, and other media it fetches in your computer's virtual memory so that it can be displayed quickly without having to be downloaded multiple times from a remote server. The default settings in Cache preferences should be adequate for most users, but advanced users may desire to change them. Beware that changing these settings may cause OmniWeb to behave undesirably. There are three types of cache entries for which the timeout settings can be changed: Original HTML or image source - By default, the original data downloaded from the network will remain in the cache for five minutes (300 seconds). This means if you access a document again within five minutes you won't have to fetch it over the network, but your machine will have to decompress/decode/convert the source again, which takes time on slow machines. Increase this type if you have a fast machine, but little memory and a slow network. Processed HTML documents - Once OmniWeb downloads an HTML document, it converts it to a form it can easily display (and evaluates JavaScripts which might change the content of the document). The default for this type is 10 minutes. If you re-access a document whose processed form is cached, the document won't have to be re-processed by OmniWeb, which will mean you won't have to wait either for the network or for the unpacking. Additionally, if you are filling out an HTML form, the form will retain your data between visits while it's still in the cache. Processed images - Likewise, OmniWeb decompresses and/or converts downloaded images so it can display them. The default is 10 minutes. If these images are reused before expiring, they won't have to be re-decompressed from the source (or loaded off the network), so they'll show up faster than if only the source were cached. However, keeping uncompressed images around uses up more memory than keeping the source (until they expire, of course). Set this higher if you have lots of memory, a slow network and a slow machine.
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