#arpnetworks 2016-04-17,Sun

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WhoWhatWhen
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nathani@weather whitby [17:46]
BryceBot3 locations matched your query: Whitby, ON, CA (zmw:00000.11.WCYOO), Whitby, GB (zmw:00000.1.03282), Whitby, WV (zmw:25823.2.99999), [17:46]
nathani@weather zmw:00000.11WCY00 [17:47]
BryceBotError, No cities match your search query [17:47]
nathani@weather zmw:00000.11.WCYOO [17:48]
BryceBotWhitby, Ontario: Clear 58°F (14°C), Humidity: 33%, Wind: Calm -- For more details including the forecast and almanac, see http://www.wunderground.com/cgi-bin/findweather/getForecast?query=43.908073,-78.928635 or re-request this with: @weather -v zmw:00000.11.WCYOO [17:48]
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mnathanido any Intel i7 processors support 128 GB ram? [19:20]
mercutionope
oh hangon the xeon i7s should
but they're xeons with xeon pricing and i7 names :)
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117402
actualyl not as bad as i thought
[19:28]
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231853 [19:34]
mnathanihttp://ark.intel.com/products/82932/Intel-Core-i7-5820K-Processor-15M-Cache-up-to-3_60-GHz < that says 64 GB Ram max [19:40]
mercutioit may predate 1gb sicks [19:40]
mnathanis/1gb sicks/16gb sticks [19:41]
BryceBot<mercutio> it may predate 16gb sticks [19:41]
mercutiowow i missed two characters
what is "Hyper-V VMBus hypercall user-space exit" :)
it's getting into the silly naming :)
this new schedule/cpu frequency scaling coming to linux sounds good
at the moment cpu frequency scaling ends up not working very well unless you have light/high load
[19:41]
mnathanimercutio: you ever try proxmox? [19:49]
mercutiomnathani: not yet
i tried smartos
[19:50]
mnathaniis that also like a virtualization gui?
or more command line based stuff?
[19:53]
mercutioit's like a virtualisation OS [19:54]
mnathanibased on Linux? [19:54]
mercutiohttps://smartos.org/
nah
solaris
[19:54]
mnathaniis there a paid version?
or all free?
[19:55]
mercutioit's free
you may be able to get support contract
i wish dtrace would come to linux
it's what i miss most from solaris ;)
i think dtrace is on freebsd
[19:55]
mnathanihow would you explain dtrace? The wikipedia page is too technical [19:59]
mercutiodtrace is great for looking at what low level code programs are doing
in order to debug issues/performance/etc
basically it's great for performance analysis
so you can do things like see which applications are doing small synchronous disk writes easily
[20:00]
mnathaniuseful mainly for developer / programer type persons? [20:01]
mercutioNah it is more devops and sys admin [20:06]
mnathaniare there wrappers / gui programs around it
or is it more like low level system commands
[20:06]
mercutioit basically makes it easy to identify what is causing bottlenecks in a running system
so if you have a web page that sometimes takes 7 seconds to load but usually takes 0.1 seconds to load, it's great for figuring out why
like it may be dns, or network, or disk, or something else
and so it helps pinpoint where issues are
[20:07]
mnathaniI see [20:09]
mercutioespecially with niggly intermittment problems like that [20:09]
mnathanido you know of a site that can provide best value for money on an i7 series processor
probably the DDR3 2011 board
[20:18]
mercutioi wouldnt' go over 64gb myself
better to go skylake and 64gb
[20:31]
jpalmermnathani: we use proxmox a lot at work. [20:32]
mercutioddr3 2011 would go second hand
apparently you can just use xeon cpus in some of the desktop boards
although ddr3 can't do 128gb on desktop boards
you need to do ddr4
[20:32]
mnathaniprobably stick with 64 gb for now
ddr3 if possible to keep costs down
[20:33]
mercutioi'm not sure why you'd want heaps of ram on a desktop though
ddr3 and ddr4 are similar pricing
but you can get 16gb ddr4 sticks way cheaper than 16gb ddr3 sticks
for 16gb on ddr3 you need to use registered ram which i suspect the desktop boards won't support
with ddr4 you can do 8x8 pretty cheap
on haswell-ep
and skylake you should be able to do 4x16gb on normal boards
[20:33]
mnathaniI want to be able to do nested vms
proxmox / vmware vsphere
[20:35]
mercutiothen get a separate server [20:35]
mnathanito try them out
then cisco virtual routers
[20:35]
mercutioi hvae a hp single cpu server with 6x8gb
was cheap
and still ecc
it's noisy though
so it's usually turned off
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