On 1/26/2012 10:27 AM, Douglas Otis wrote:
To support touted performance feature, chrome aggressively resolves
links in advance. This strategy makes chrome sensitive to DNS
performance. Cache in their recursive resolvers is kept current ahead
of requests. People addicted to speed. ;^)
I might be being argumentative for it's own sake (sorry), but doesn't
this make Chrome less sensitive to DNS performance rather than more
sensitive?
With a browser that doesn't pre-cache DNS lookups, the user is aware of
DNS latency every time they click a link and with every resource that
the browser loads from a different domain. Conversely, with caching, in
most cases pre-caching every link on a page will take longer than it
takes the user to find a link and click on it even if the DNS cache is
extremely slow.
Now I'd agree that faster DNS servers makes a noticeable difference when
browsing since many websites load content from a dozen or more hostname,
but I'd argue that Chrome's precaching makes it less sensitive to slow
DNS queries.
--
Dave Warren, CEO
Hire A Hit Consulting Services
http://ca.linkedin.com/in/davejwarren
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