Date: Mon, 2 Nov 2015 00:04:26 -0700 From: Warner Losh <imp@bsdimp.com> To: Eugene Grosbein <eugen@grosbein.net> Cc: Adrian Chadd <adrian@freebsd.org>, "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: CPU underload Message-ID: <CANCZdfrB0hkjmTU-9NzimBv=X_h-=bF0D2azBxg=9B=kmitv7Q@mail.gmail.com> In-Reply-To: <563707A0.3040700@grosbein.net> References: <56348063.3090508@grosbein.net> <56348239.3050701@grosbein.net> <CAJ-Vmok%2BgKXcpzpxNCBhxX8sYSh%2BQO7OaeojB4MCufO%2BA4zceg@mail.gmail.com> <563500FC.8020201@grosbein.net> <CAJ-Vmo=EpmG6OJxq_v_mqKMF48h_B3K7vKqnnaKAi3x1s-uaWQ@mail.gmail.com> <5635148B.2070307@grosbein.net> <CAJ-VmomzkG8ZB0h1Qc=Oeny2ZOzQg1UirUprM_gmMy64F5ZRYw@mail.gmail.com> <56351AA6.80903@grosbein.net> <CAJ-VmomLen5p7ELejU7QtC5CO2j8hydb_CvdOqQsfaaMAtmdkA@mail.gmail.com> <563523CA.3040207@grosbein.net> <CAJ-Vmonpd8R5C%2BNvhOGFD1okkkit990DV8c4Dm%2BLmpZ2uFfVkA@mail.gmail.com> <56367686.4090801@grosbein.net> <CAJ-VmomtJ9eKfAJYfn4e2S1xWN8-YHo0M0KH-9V=VjNBf6vVVA@mail.gmail.com> <563707A0.3040700@grosbein.net>
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On Sun, Nov 1, 2015 at 11:50 PM, Eugene Grosbein <eugen@grosbein.net> wrote: > On 02.11.2015 03:47, Adrian Chadd wrote: > > Yeah, I'll poke at it tomorrow. > > > > I should just be able to fire up this in gdb and figure it out. > > > > How's it all looking so far? Is it still stable and still performing OK? > > I do not use the device in practice yet, only for experiments. > There are lots of things to be done before I can use it for real. > > First, the kernel in head it way too big. It should be possible > to compile out lots of unneeded but large subsystems like JAIL support etc. > > Then, routing performance is still low and pmcstat shows lots of memcpy > too many locking for uniprocessor kernel comparing with bridging. > > Next, USB flash support is not very stable as I have written before, > lots of USB i/o can easily panic the kernel. > Does your flash device support trim / delete? Warner > Also, I need to think of reliable way to perform freebsd image upgrade > over IP, without having physical access to device. I think recently > introduced > 're-root' feature could help. > > And I have not tested wifi yet because wifi support takes lots of flash > space. > I still need to figure out how to fit all its bits and other binaries > I need (like openssh, routing daemons etc.) using just 8M flash. > >
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