Date: Wed, 26 Apr 2006 09:26:36 -0400 From: Stephen Clark <Stephen.Clark@seclark.us> To: Mike Tancsa <mike@sentex.net> Cc: stable@freebsd.org Subject: Re: Freebsd Stable 6.x ipsec slower than with 4.9 Message-ID: <444F750C.7070206@seclark.us> In-Reply-To: <6.2.3.4.0.20060425134955.051d58d0@64.7.153.2> References: <444E2503.9090506@seclark.us> <6.2.3.4.0.20060425093417.068dfc08@64.7.153.2> <444E5608.4050704@seclark.us> <6.2.3.4.0.20060425134955.051d58d0@64.7.153.2>
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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. 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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