Andi Kleen wrote:
On Thu, Dec 06, 2007 at 05:02:40PM -0600, Chris Friesen wrote:
I just reran on a 3.2GHZ P4 running 2.6.11 (Fedora Core 4). 42% latency
increase.
Sounds like something that should be looked into. I know of no
principal reasons for that.
For stream sockets, unix gives approximately a 62% bandwidth increase
over tcp. (Although tcp could probably be tuned to do better than this.)
How long a stream did you test? You might be measuring slow start.
No idea. These are just the standard local networking tests in lmbench
v2. In our case the latency was the big concern and we were using
datagrams anyway.
Chris
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