Date: Wed, 18 Nov 2015 10:31:08 +0800 From: Marcelo Araujo <araujobsdport@gmail.com> To: Dan Langille <dan@langille.org> Cc: freebsd-performance@freebsd.org Subject: Re: Measuring ZFS configuration differences Message-ID: <CAOfEmZjXaLfkV6DuokMjQzPnWFdHnfsQQxZUfdFK=7wZV0oDFw@mail.gmail.com> In-Reply-To: <D85EFCE4-3CBE-4E5D-92FB-7C2405457A8F@langille.org> References: <8B37FEDC-218A-4071-8CB7-48361BB72B1D@langille.org> <14A0EA61-6545-42BB-910E-62C752D4396C@langille.org> <CAOfEmZgKXXfUCY0L-%2Bw=op_9mfAgy23hjDr=xWej8TM_RsJCUg@mail.gmail.com> <A6A23726-A6AE-41C8-9E18-C1057A34D0E4@langille.org> <CAOfEmZi79Us3SPOZ9zQ-siqLBQn0N2LCYLbuTQEDac0LCkq6bA@mail.gmail.com> <D85EFCE4-3CBE-4E5D-92FB-7C2405457A8F@langille.org>
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2015-11-18 10:23 GMT+08:00 Dan Langille <dan@langille.org>: > > > On Nov 17, 2015, at 8:46 PM, Marcelo Araujo <araujobsdport@gmail.com> > wrote: > > > > 2015-11-18 3:14 GMT+08:00 Dan Langille <dan@langille.org>: > > > >> > >> On Nov 12, 2015, at 1:30 AM, Marcelo Araujo <araujobsdport@gmail.com> > >> wrote: > >> > >> > >> > >> 2015-11-12 6:34 GMT+08:00 Dan Langille <dan@langille.org>: > >> > >>> On Oct 12, 2015, at 1:00 PM, Dan Langille <dan@langille.org> wrote: > >>>> > >>>> Following up on the discussions during EuroBSDCon 2015 (Stockholm) > >>> during the FreeBSD Developer > >>>> Summit regarding various ZFS configuration settings, I write to star= t > >>> our implementation phase now that some > >>>> usual suspects have joined the list. > >>>> > >>>> re https://wiki.freebsd.org/201510DevSummit/Performance > >>>> > >>>> I think the first order of business is granting access rights to the > >>> server (varm) in question: > >>>> > >>>> http://dan.langille.org/2015/07/19/varm/ > >>>> > >>>> During the workshop, mention was made of serial access. I can arran= ge > >>> that. > >>>> > >>>> The server has IPMI, however, my first thought: > >>>> > >>>> 1 - connect a USB-serial cable to varm & link that to another server > in > >>> my rack. > >>> > >>> Marcelo: At EuroBSDCon, was it you who mentioned a particular > >>> configuration for the test machine which made > >>> it easy to configure and run tests? Was it PXE booting or something? > >>> > >>>> 2 - create a jail in that server and give it access to that serial > >>> connection > >>>> 3 - redirect incoming port XYZ to that jail via a public-key-only ss= h > >>> connection > >>>> 4 - give people access > >>>> > >>>> Any suggestions? > >>> > >>> =E2=80=94 > >>> Dan Langille > >>> http://langille.org/ > >>> > >>> > >> Hello Dan, > >> > >> Yes, was me :) > >> > >> I mention about zopkio test framework. > >> I gave a presentation last weekend at PyCon Hong Kong about it. > >> > >> Here is my slides: > >> > http://www.slideshare.net/araujobsd/functional-and-scale-performance-test= s-using-zopkio > >> > >> The good of Zopkio is, we can write tests at once and run it as much a= s > we > >> want in different machines. Also Zopkio depends of Naarad, that can > parse a > >> CSV file and create metrics and SLA over those metrics, plot graphs an= d > so > >> on. Pretty nice tool!!! > >> > >> I'm wondering if we could start to test something and maybe show it at > >> AsiaBSDCon and BSDCon(Canada) next year? What do you think? > >> What I need right now would be a list of tests that we want to perform > as > >> well as what parameters we would like to take as metrics to compare.\ > >> > >> > >> For tests, we can start with this list: > >> https://github.com/dlangille/zfs_benchmarks/issues > >> > >> We can start as soon as I figure out how to provide access to the > >> testers. See above re serial connection. > >> > >> I want to provide access, but I want to keep access restricted to only > >> this box and not to the rest of my home LAN. I plan to do this via a > >> VLAN. > >> > >> I could fire up a Rasperberry Pi and allow ssh into that. Will that b= e > >> enough > >> power for what you need to do? > >> > >> > > First of all, thanks to share the tests cases. > > > > If I use zopkio, the best would be access SSH direct to the target > machine > > where I need to run the tests. For zopkio, I need to have my SSH KEY on > the > > target machine. > > I am OK with this. > > > As I don't know your network, maybe what you could do is: Via > RasperBerry, > > forward the SSH to the target machine, I will pass-through via your > > RasperBerry where you can control the access for the rest of your LAN. > > > > Another approach could be, two different subnets and a firewall. Or as > you > > said, VLANS. > > I will be doing VLANS, which have yet to be set up. > > The target system will have ZFS pools can be configured for different > tests (i.e. raidz2 vs raidz3). > This will involve gpart etc because the drives & pools will need to be > 'wiped' between different test > runs. > > I seem to recall someone suggesting PXE boot and configuring the system > remotely. Does anyone > recall that? That aspect of the discussion was not recorded: > https://wiki.freebsd.org/201510DevSummit/Performance > > Bapt@ mentioned that, this is the way how we are doing in another project. But in my point of view, it is not a must for our case! The PXE wold be good if we try to test different of OS flavors, or build different images. Best, --=20 --=20 Marcelo Araujo (__)araujo@FreeBSD.org \\\'',)http://www.FreeBSD.org <http://www.freebsd.org/>; \/ \ ^ Power To Server. .\. /_)
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