Sciweavers

Share
WWW
2002
ACM

Aliasing on the world wide web: prevalence and performance implications

12 years 2 months ago
Aliasing on the world wide web: prevalence and performance implications
Aliasing occurs in Web transactions when requests containing different URLs elicit replies containing identical data payloads. Conventional caches associate stored data with URLs and can therefore suffer redundant payload transfers due to aliasing and other causes. Existing research literature, however, says little about the prevalence of aliasing in user-initiated transactions, or about redundant payload transfers in conventional Web cache hierarchies. This paper quantifies the extent of aliasing and the performance impact of URL-indexed cache management using a large client trace from WebTV Networks. Fewer than 5% of reply payloads are aliased (referenced via multiple URLs) but over 54% of successful transactions involve aliased payloads. Aliased payloads account for under 3.1% of the trace's "working set size" (sum of payload sizes) but over 36% of bytes transferred. For the WebTV workload, roughly 10% of payload transfers to browser caches and 23% of payload transfe...
Terence Kelly, Jeffrey C. Mogul
Added 22 Nov 2009
Updated 22 Nov 2009
Type Conference
Year 2002
Where WWW
Authors Terence Kelly, Jeffrey C. Mogul
Comments (0)
books