News for hackers. Stuff that matters.

A comment on I build High Availability Platforms so Cloud is not for me. Parent comment

Re:I build High Availability Platforms so Cloud is not for me by gummadi on Monday July 02, 2012 @06:43PM (#4191436)
How many software systems are even 1% as battle tested as a "CPU"? Even the most well designed software system doesn't have the kind of test coverage of a hardware.
[ Parent | on HN ]
Re:I build High Availability Platforms so Cloud is not for me by Retric on Monday July 02, 2012 @07:17PM (#4191577)
CPU's are complex and far from perfect, often shipping with hundreds of 'errata' at the design level plus a wide assortment of random manufacturing errors in each chip. So, there is software that has fewer bugs and better coverage than a modern CPU. ex: Grep

EX: Pages 19-73 with 2 to 4 errata per page for a single popular CPU design: http://download.intel.com/design/processor/specupdt/320836.p... And that's just limited to stuff Intel knows about.

[ Parent | on HN ]