On Mon, Jan 13, 2014 at 3:33 PM, Tim Starling <tstarling(a)wikimedia.org>wrote;wrote:
In fact, it would slow down individual requests by a factor of 7,
judging by the benchmarks of Calxeda and Xeon CPUs at
http://www.eembc.org/coremark/index.php
So instead of a 10s parse time, you would have 70s. Obviously that's
not tolerable.
Question - is that 10s linear CPU core time for a parse, or 10s of average
response time given our workloads?
If it is the linear one-core parse processing time, how much of that is
dependencies on DB lookups and the like, externalities within the
infrastructure rather than the straight-line CPU time needed for the parse
itself?
Amdahl's law works both ways...
--
-george william herbert
george.herbert(a)gmail.com