Sam Leffler wrote:
Stephen Clark wrote:
Mike Tancsa wrote:
At 01:02 PM 25/04/2006, Stephen Clark wrote:
Try first
sysctl -w net.inet.tcp.inflight.enable=0
If its still slower, try using FAST_IPSEC instead on the server.
However, make sure you disable INET6
That increased it to 39mbits/sec. Still far from 54mbits/sec
Are all of the TCP params (compare sysctl -a net.inet.tcp on both )and
application defaults still the same on both systems ? One that that
for sure is not in RELENG_4 is SACK. Try disabling that and see if
there is a difference.
---Mike
I checked the sysctl's between the two system and where the match they
are the same. The raw transfer rate ~94mbits/sec is the same as I was
getting between the systems when they were both 4.9. The real
difference appears to be in ipsec. The other thing that is interesting
is the idle time when I am running this test on the 6.x system is about
70% when it was a 4.9 system getting 54mbits/sec the idle time was only
50-55%.
I am reluctant to try fast ipsec because of problems I had when I tried
it under 4.9, it didn't work with our existing sites.
There are known locking bottlenecks in the crypto subsystem that fast
ipsec depends on. This is consistent with idle time going up.
Not sure when they'll be fixed but I know they're important to at least
one person.
Sam
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Hi Sam,
I am going to try the fast ipsec.
Regards,
Steve
--
"They that give up essential liberty to obtain temporary safety,
deserve neither liberty nor safety." (Ben Franklin)
"The course of history shows that as a government grows, liberty
decreases." (Thomas Jefferson)
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