[tor-bugs] #3630 [Tor Relay]: Reduce token bucket refill interval
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Fri Jul 22 05:18:22 UTC 2011
#3630: Reduce token bucket refill interval
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Reporter: Flo | Owner:
Type: enhancement | Status: new
Priority: normal | Milestone:
Component: Tor Relay | Version:
Keywords: | Parent:
Points: | Actualpoints:
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Comment(by arma):
Profiling fast Tor relays in the past showed that they spent 5-10% of
their cpu time refilling buckets.
If we refill buckets 100 times as often, will we spend 90% of our cpu time
refilling buckets?
Also, are we removing any realistic chance that we would flush more than
one cell at once? If MTUs are often 1500, sending a second cell could be
much cheaper than the earlier analysis implies.
That's not to mean we shouldn't make a change like this. But it would be
great to better understand what results we expect to see, so we can check
to make sure that we actually see them.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3630#comment:2>
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