On Mon, 12 Jun 2006, Scott Long wrote:
I run a number of high-load production systems that do a lot of network and
filesystem activity, all with HZ set to 100. It has also been shown in the
past that certain things in the network area where not fixed to deal with a
high HZ value, so it's possible that it's even more stable/reliable with an
HZ value of 100.
My personal opinion is that HZ should gop back down to 100 in 7-CURRENT
immediately, and only be incremented back up when/if it's proven to be the
right thing to do. And, I say that as someone who (errantly) pushed for the
increase to 1000 several years ago.
I think it's probably a good idea to do it sooner rather than later. It may
slightly negatively impact some services that rely on frequent timers to do
things like retransmit timing and the like. But I haven't done any
measurements.
Robert N M Watson
Computer Laboratory
Universty of Cambridge
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