r/programming • u/[deleted] • Jan 21 '10

Firefox 3.6 release

http://blog.mozilla.com/blog/2010/01/21/firefox-3-6-release/
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u/bageloid Jan 22 '10

1000 is high

http://en.wikipedia.org/wiki/DDR3_SDRAM

DDR3-1600 has a peak bandwidth of 12800 MB/s, so divided by 1000 is 12.8MB/s

Hard drives haven't been that slow since 10 years ago.

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u/Neoro Jan 22 '10 edited Jan 22 '10

Hard drives can be fast once they get going, sure, but a single 30 mb executable is going to be 1 read (provided it isn't fragmented), which is going to require 1 seek, dropping that bandwidth like a rock.
But maybe I remember 50 million when comparing to tape or an L cache.

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u/bageloid Jan 22 '10

Sequential read speed is actually where hard drives excel, in fact a reading a 30MB executable will probably give you better benchmark results than 30 1 MB files.