[Beowulf] IEEE 1588 (PTP) - a better cluster clock?

Greg Lindahl lindahl at pbm.com
Fri Jul 20 16:29:24 EDT 2007


On Fri, Jul 20, 2007 at 04:07:09PM -0400, Patrick Geoffray wrote:

> NTP's precision is good enough 
> for comparing log and other administration needs.

I agree with this, however, there's another upcoming use of very high
resolution synchronized clocks: synchronizing timer ticks across your
cluster. The new "tickless" Linux infrastructure looks like it makes
it fairly easy to have your clock ticks take place at roughly the same
time on all your nodes, which should improve performance when you have
big clusters and a lot of synchronization in your code.

-- greg



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