DE LARA, E., WALLACH, D. S., AND ZWAENEPOEL, W. Opportunities for bandwidth adaptation in Microsoft Office documents. In Proceedings of the Fourth USENIX Windows Symposium (Seattle, Washington, Aug. 2000).  Home/Search   Document Details and Download   Summary   Related Articles   Check

....by AbiWord) 4.2. Bandwidth Savings Transmitting text only versions of documents to PDAs can result in large reductions in the amount of data transmitted. Although the AbiWord test set was relatively small (960 test cases derived from 10 source documents) results from the Puppeteer project [11] also substantiate the savings achievable by content reduction as shown in Figure 6. Another indicator of how FCDP reduces the amount of data that mobile devices need to transmit is shown in Figure 7. If the mobile device has to transmit the entire v 1 ( document, it will have to transmit far ....

E. d. Lara, D. Wallach, and W. Zwaenepoel, "Opportunities for Bandwidth Adaptation in Microsoft Office Documents," presented at 4th USENIX Windows Systems Symposium, Seattle, Washington, 2000.

....only process running on the server. For the Puppeteer experiments, the Apache server and Puppeteer server proxy run on the same machine. 5 Data sets We selected the set of PowerPoint documents used in our experiments from a collection of Microsoft Office documents that we characterized earlier [10]. The full collection includes 2167 documents downloaded from 334 Web sites with sizes ranging from 20 KB to 21 MB. We obtained our HTML documents by re executing the traces of Web client accesses collected and characterized by Cunha et al. 9] These traces include access from 2 user groups ....

....2.5 3 3.5 4 4.5 5 0 200 400 600 800 Figure 12: Load latency for HTML documents at 10 Mb sec. 9 100 200 300 400 500 600 700 800 900 0 200 400 600 800 Size Figure 13: Data transfered to load HTML documents. size. These results are consistent with our earlier findings of [10] where text accounted for a small fraction of the total data in large PowerPoint documents. These results suggest that text should be prefetched in almost all situations and that the lazy fetching of components is more appropriate for the larger image and OLE embedded objects that appear in the ....

DE LARA, E., WALLACH, D. S., AND ZWAENEPOEL, W. Opportunities for bandwidth adaptation in Microsoft Office documents. In Proceedings of the Fourth USENIX Windows Symposium (Seattle, Washington, Aug. 2000).

....data loss in the event that a mobile computer is damaged or stolen. We measured the energy used to fetch presentations from the server and render them on the client. We chose a sample set of documents from a database of 1900 presentations gathered from the Web as described by de Lara et al. [1]. From the database, we selected ten documents relatively evenly distributed in A B C D E F G H I J 0 1 2 native full distilled This gure shows the relative energy used to load ten PowerPoint presentations from a remote server, as described in Figure 4. For each data set, results are ....

de Lara, E., Wallach, D. S., and Zwaenepoel, W. Opportunities for bandwidth adaptation in Microsoft Oce documents. In Procceedings of the 4th USENIX Windows Systems Symposium, Seattle, WA, August 2000.

....this results in better throughput and enables clients and server to run on different platforms. The Puppeteer client runs on Windows NT while the Puppeteer server runs on Linux. In the course of constructing our prototype and in a previous study that evaluated Microsoft Office file formats [9] we have built several parsers for both text and binary formats. In our experience, writing parsers for text formats, like HTML and XML, is much simpler than creating parsers for binary formats, even when appropriate documentation is available. Finally, Puppeteer tracks the users as she uses the ....

....user enters a URL and to track the location of the mouse. Puppeteer uses this information to drive image fetching and fidelity refinement. 5 Data sets We selected the set of PowerPoint documents used in our experiments from a collection of Microsoft Office documents that we characterized earlier [9]. The full collection includes 2167 documents downloaded from 334 Web sites with sizes ranging from 20 KB to 21 MB. We obtained our HTML documents by re executing the traces of Web client accesses collected and characterized by Cunha et al. 7] These traces include access from 2 user groups made ....

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DE LARA, E., WALLACH, D. S., AND ZWAENEPOEL, W. Opportunities for bandwidth adaptation in Microsoft Office documents. In Proceedings of the Fourth USENIX Windows Symposium (Seattle, Washington, Aug. 2000).

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