Date: Fri, 20 Nov 2015 11:12:33 -0500 From: Dan Langille <dan@langille.org> To: Tom Curry <thomasrcurry@gmail.com> Cc: freebsd-performance@freebsd.org, Marcelo Araujo <araujo@freebsd.org> Subject: Re: Measuring ZFS configuration differences Message-ID: <81C1CC91-F9EC-43DC-A2D8-A8BDDE28E9A3@langille.org> In-Reply-To: <CAGtEZUBQokwKs8N31WmW-CCax8ysY=X8=6U_8hfdCJJAxdujaw@mail.gmail.com> 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> <CAOfEmZjXaLfkV6DuokMjQzPnWFdHnfsQQxZUfdFK=7wZV0oDFw@mail.gmail.com> <E8E50E34-B48C-42EB-95D0-19A5272D1BC9@langille.org> <CAGtEZUBQokwKs8N31WmW-CCax8ysY=X8=6U_8hfdCJJAxdujaw@mail.gmail.com>
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> On Nov 18, 2015, at 5:47 PM, Tom Curry <thomasrcurry@gmail.com> wrote: > > On Wed, Nov 18, 2015 at 4:12 PM, Dan Langille <dan@langille.org> wrote: > >> >>> On Nov 17, 2015, at 9:31 PM, Marcelo Araujo <araujobsdport@gmail.com> >> wrote: >>> >>> 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 >> start >>>>>>> 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 >> arrange >>>>>>> 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 >> ssh >>>>>>> connection >>>>>>>> 4 - give people access >>>>>>>> >>>>>>>> Any suggestions? >>>>>>> >>>>>>> — >>>>>>> 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-tests-using-zopkio >>>>>> >>>>>> The good of Zopkio is, we can write tests at once and run it as much >> as >>>> 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 >> and >>>> 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 >> be >>>>>> 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. >> >> OK. The only thing holding us back is: >> >> - adding the air filters to the case >> - moving to the new switch with the new VLANs >> >> It's now a matter of time. >> >> — >> Dan Langille >> http://langille.org/ >> >> >> >> _______________________________________________ >> freebsd-performance@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-performance >> To unsubscribe, send any mail to " >> freebsd-performance-unsubscribe@freebsd.org" >> > > > Dan, > > I don't know if you have already cracked the serial access nut, but every > supermicro motherboard I have owned has supported serial over lan. I > personally have never used it, I have just noticed it from time to time. > Here is a good resource on setting it up > http://serverfault.com/questions/574351/serial-over-lan-on-freebsd-10-0-with-supermicro-x9-scm-f > (note: it's for an X9 motherboard but it should work for your X10, see the > comment at the very end) If we go that way, I will keep that in mind, thank you. > Also, FreeBSD, ZFS and performance are three of my most favorite words. Is > there any way I can participate in this adventure? Yes, there will be, I'm sure. This comes to mind immediately: running the tests on your own server will validate/invalidate our results. For now, we have no results, because it's all waiting on me and my network at home. It's a time issue. This weekend is pretty much filled with other stuff. — Dan Langille http://langille.org/
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