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Old 2008-05-23, 17:25   #42
A Sunny Moo
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Aug 2007

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Originally Posted by gd_barnes View Post
I haven't checked my main machines yet but at least 2 of my slower cores are sleeping on LLRnet right now. I'll make the rounds and see if others are having the same problem.

Unfortunately I have the cache set at 1 for all of them.

I would recommend having the cache set at 2, at the very least--otherwise you have about a half second to a second (depending on your connection latency and DNS server speed) of idle time between k/n pairs (since it can't start on the next one until it downloads it). It may not seem like much, but it adds up.

I generally, as a rule of thumb, keep a minimum cache of 5 for numbers this size on my Core 2 Duo. (That is, a cache of 5 on each core.) In fact, I usually use a cache size of 10 just to give myself some extra "padding" in case my internet connection skips out (which it does, for brief intervals, regularly; this is why I do only manual work while I'm on vacation). On slower machines such as my P3 1Ghz, I usually use a cache of 2 (about 40 minutes of work on that machine).
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