Date: Sun, 15 Mar 2015 20:34:18 -0400 From: Mike Tancsa <mike@sentex.net> To: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: 35-40% performance drop releng9 vs releng10 openvpn Message-ID: <5506250A.2000506@sentex.net>
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As part of moving from a RELENG8 based image to a RELENG9 or 10, I was doing some simple performance testing and found RELENG_9 to be quite a bit faster when generating traffic through a pcengines APU (dual core, AMD64, 2G of RAM). Both are using generic kernels blasting across an aes-128cbc tunnel, on releng9 I get # dd if=/dev/zero | nc 10.3.24.25 500 326002688 bytes transferred in 37.188139 secs (8766308 bytes/sec) vs # dd if=/dev/zero | nc 10.3.24.25 500 146982400 bytes transferred in 27.750440 secs (5296579 bytes/sec) on releng10. Both have identical pf rules, but disabling pf does not make much of a difference in speed. I havent started checking any of the default tunables. The box will be functioning as a VPN router and I was hoping to get at least 50Mb/s out of it, and I can do that on RELENG9, but not 10. Any ideas what to do with RELENG10 to get comparable performance out of it ? ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
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