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| | Pantek - Expert Linux and Open Source Services: : RFC #3229: Delta encoding in HTTP. J. Mogul, B. Krishnamurthy, F. ... |
 | | Delta encodings are instance-manipulations, and are computed at this stage. | | | Standards Track [Page 19] RFC 3229 Delta encoding in HTTP January 2002 then the meaning is the same as in the example above, except that after the delta encoding (and compression, if any) is computed, the server then returns only the first 100 bytes of the output of the delta encoding. | | | 6 Encoding algorithms and formats A number of delta encoding algorithms and formats have been described in the literature: diff -e The UNIX "diff" program is ubiquitously available, and is relatively fast for both encoding and decoding (decoding is actually done using the "ed" program). |
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http://www.pantek.com/library/general/rfc/rfc3229.html
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| | What is HTTP Delta Encoding? - WebReference.com |
| | Although the idea of transmitting just the differences between successive pieces of information is an old one (for example, SCCS, RCS, and similar revision-control systems store older revisions as differences), the first use of delta encoding in the Web was developed by Housel and Lindquist at IBM [8]. | | | However, this variation is more complex and less mature than basic delta encoding, so I won't cover it further in this article. | | | In fact, the cost of a Web cache miss could be greatly reduced, using delta encoding. |
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http://webreference.com/internet/software/servers/http/deltaencoding/intro
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| | As I May Think...: Using RFC3229 with Feeds. |
| | Rather, it is item or entry oriented in that deltas are computed not in bytes but rather in whole items or entries. | | | Support for a variety of encoding algorithms and formats. | | | Bob Wyman, CTO of PubSub, details how RFC3229, "Delta Encoding in HTTP," could be used to help solve the bandwidth problem of syndicated feeds. |
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http://bobwyman.pubsub.com/main/2004/09/using_rfc3229_w.html
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| | As I May Think...: Implementations of RFC3229 with "feed" |
| | Assuming everything is stable, I'll roll out the code across all JournURL communities... | | | BL is definitely getting deltas, but I'm not sure that 304s are being returned on previously retrieved deltas.) |
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http://bobwyman.pubsub.com/main/2004/09/implementations.html
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