Date: Wed, 13 May 2015 08:19:25 -0700 From: Tim Kientzle <tim@kientzle.com> To: Andreas Andersson <aandersson@tappsi.co> Cc: freebsd-arm@freebsd.org Subject: Re: Performance issues with raspberry pi 2 Message-ID: <5C015967-4CE2-403E-A0BA-200F8EAA1AC4@kientzle.com> In-Reply-To: <CAOx9_ZiUw5nkBK=Bsumb=K2W1hv0P%2BNAwT7OXE7VAz_96awqOw@mail.gmail.com> References: <CAOx9_ZiUw5nkBK=Bsumb=K2W1hv0P%2BNAwT7OXE7VAz_96awqOw@mail.gmail.com>
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Do you have WITNESS and INVARIANTS enabled in your FreeBSD kernel = configuration? WITNESS and INVARIANTS are used on development kernels to enable = additional in-kernel consistency checks. They make things a lot slower = and are normally not enabled in production kernels. If you do have those enabled, try removing them and let us know how much = of a difference it makes. Cheers, Tim > On May 13, 2015, at 4:27 AM, Andreas Andersson <aandersson@tappsi.co> = wrote: >=20 > I do understand this is still very new and not ready for "producton" = use. >=20 > But freebsd 11 on rpi2 suffers permance issues. Severely. >=20 > For instance, the same code I am running (tornado project which = inserts > stuff to rabbitmq) is running at ~190 req/s or 190 publishments/sec = (to > rabbitmq) on raspbian. >=20 > On FreeBSD 11 this is at around 85/s. >=20 > With my consumer (using all the cores) I am seeing a high get rate = from > rabbitmq. But ACKing those messages are painstakingly behind. How can = I > help you debug this. >=20 > What information would you need? >=20 >=20 >=20 >=20 > My own theory on this is that on FreeBSD we are doing stuff with = software > floating point, while on raspbian we are doing stuff with hardware = floating > point. > _______________________________________________ > freebsd-arm@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
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