#arpnetworks 2015-07-09,Thu

so i finally caved in and got me a gigabit router/switch
only a cheapy thing to openwrt, but claims it can do 900mbps hardware nat
http://www.tp-link.com/en/products/details/cat-9_TL-WDR3600.html .. 800mbps sorry

[15:09]

mercutio

grody: that can't do anything like gigabit with openwrt
more like 150megabit i think
for wan/lan
but at least you can switch fast

[15:12]

..... (idle for 22mn)

the wireless ac ones have faster cpus

[15:36]

m0unds

i think i paid like $75 for the one i bought my inlaws

[15:37]

mercutio

that's about how much the ac ones cost now i think

[15:39]

m0unds

yea, this one's the same one you have iirc
c7

[15:40]

mercutio

ahh yeh so they have ok cpu
sort of
i wish they were like 2 or 3 faster cpu :)

[15:40]

m0unds

yeah, for what it's supposed to do
hahaha

[15:40]

mercutio

i dunno, i want to do tcp/ip acceleration / retermination
i just use pc as router and router for bridging wireless

[15:41]

m0unds

QCA9558 dual-band, 3-stream 802.11n SoC / Atheros AR8327 switch / 128MB DDR2 / 8MB Flash

[15:42]

mercutio

nice
oh 802.11n?

[15:44]

m0unds

that's in the C7

[15:44]

mercutio

yeh it's ac
why does it say 802.11n? :)

[15:45]

m0unds

idk

[15:45]

mercutio

3600 is ar9344 it seems
hmm archer c7 has 16 mb of flash in v2
and qca9880
actually 9558 isn't much faster than 9344
there's 802.11ad chips from atheros now apparently
http://www.ebay.com/itm/Dell-Wireless-DW1601-QCA9005-8V256-WiGig-802-11AD-7Gbps-Half-Mini-Wireless-Card-/251802031092?pt=LH_DefaultDomain_0&hash=item3aa09213f4
they're not even expensive to get mini pci-e cards!
werid that doesn't support ac or does it?

[15:45]

m0unds

huh, dunno

[15:51]

grody

mercutio, its more the wifi on it im hoping will be semi decent
just concerned open wont suffice and have to use dd-wrt (have seen a version for it) - will delicate it to pure bridge/switch then
delegate*
no need for ac atm
not all my devices do 5GHz yet

[16:00]

mercutio

use gargoyle?
my cellphone doesnt' do 5 ghz
i was surprised even on single stream 2.4 it did 45 megabit speedtest
but newer devices seem to be taking more of the limited bandwidth

[16:02]

grody

phones do, tablets do.. laptops don't
hmm
never seen that before

[16:07]

mercutio

my laptop does about 250 megabit with udp i think
with 300 megabit max

[16:08]

grody

usually build my own openwrt

[16:08]

mercutio

cool
i should do that really :/

[16:08]

m0unds

my phone does 433mbit on 5ghz

[16:08]

grody

yea, on similar hardware, dd wins hands down for wifi performance vs. open

[16:08]

mercutio

openwrt is a pita on archer c7

[16:08]

m0unds

i think my macbook does too

[16:08]

mercutio

my tablet does that m0unds
macbok may be 866

[16:08]

grody

on a wdr841nd i can get 96mbps wire speed off the wifi on 2.4GHz

[16:09]

m0unds

2012 vintage

[16:09]

grody

openwrt i get abot 40
both forced HT40 too

[16:09]

mercutio

grody: i had to use a different blob and dev oepnwrt to get 400 to 500 megabit/sec out of wireless ac on archer c7
where native does 600 megabit
that's bridging two together, so 1.3 gigabit line rate or whatever

[16:09]

grody

nice

[16:09]

mercutio

i got about that too grody
ie it was saturating the 100 megabit ethernet
oh i wonder where that device is :)
what i want to try is doing less acking
because wifi is half duplex tcp acking every second packet should impair performance

[16:10]

grody

hmm, if 150mbps NAT on Open is about what'd it, what if it were pure routed?

[16:11]

m0unds

i really hate that android's app backup stuff seems to be completely broken w/gapps accts

[16:11]

mercutio

but in order to do that seemlessly need to do it on router :/

[16:11]

grody

PPPoE WAN to LAN no NAT, firewalling or QoS
(similar to what i do atm)

[16:11]

mercutio

and terminating tcp session on router is slow
you'd have to try grody
i reckon 250 megabit is about your peak limit with tweaking

[16:11]

grody

the 841nd handles the 79/19 easy

[16:12]

mercutio

oh pppoe
well it's the same cpu as rb2011 i think

[16:12]

grody

but i'd want the PPPoE WAN > Port1 > pfSense > Port2 > wifi bridge w/ VLANs

[16:12]

mercutio

using recent kernel?
vlans are done on the switch afaiak

[16:12]

grody

3.18.14

[16:13]

mercutio

so no cpu overhead for them
yeh that shoudl be good
there was some improvements a while back

[16:13]

grody

kept the stock firmware, as the wifi on that was quite amazing
laptop did 103mbps on 2.4GHz

[16:13]

mercutio

79 megabit is a lot easier than 300 megabit :)
i kind of wish they'd just stick 2 ghz cpu's in
and stop doing offload :/

[16:13]

grody

aye.. ideally this router will future proof me for FTTP (upto 300mbps)
heh yea
if USB etherner wasn't so w**k i'd use my pogoplug as a router.. 256MB RAM 1.2GHz CPU and can handle routed traffic quite well
that sits with a gigabit port, so bouncing back traffic through a VLAN would be doable
would need a smart switch though

[16:14]

mercutio

i think the cpus are weak in cache
but like 100 megabit nat you can do on p75 :)
of course that's cisc..
and cpu speed seems to make a difference
err cpu mhz does
you can actually overclock some

[16:16]

grody

http://pastebin.com/MW6LYLQf

[16:17]

mercutio

i've never tried it just read about it

[16:17]

grody

yea, 16kb L1 and 256KB L2

[16:17]

mercutio

but it seemed to boost throughput more than it should
ie it's cpu bound

[16:18]

grody

this thing handles well for an old board

[16:18]

mercutio

not bus bound or such

[16:18]

grody

have one acting as a backup mail relay

[16:18]

mercutio

is l1 cache 8k split data instruction?
i wonder how complex the forward path is on linux

[16:18]

grody

L1 Data cache = 16 KB. 4-Way, 32 B/line.
L1 Instruction cache = 16 KB, 4-Way, 32 B/line..
http://www.7-cpu.com/cpu/Kirkwood.html

[16:18]

mercutio

you'd think it could stay in l1 cache for forwarding
but hard to know

[16:19]

grody

need to get a new thin/apu for pfsense too
so much stuff to choose from and getting something decent at a good price is hard

[16:21]

mercutio

go second hand
i'm hoping to bid tomorrow on i3-2120
i want to shift my routing stuff off my server and stick dual ethernet card in it and plug straight into modems

[16:23]

brycec

Why not OPNsense, grody ?

[16:26]

grody

brycec, used it for 5+ years, i know it
have looked at bsdrp (or something) too
but meh
i've gotten to ♥ pfsense' quirks
hmm.. Dell-Wyse-R90L
has gigabit ethernet.. could simply bounce traffic back and force over port and tagged vlans
my neoware ca10 (ancient thing) can actually handle 122mbps routed and 75 (at least) NAT
can do 47mbps openvpn too
but it also routed traffic between two virtal wireless networks - and it gets kinda hot when everything is going on

[16:28]

.... (idle for 16mn)

brycec

I've become rather disillusioned with pfSense's management and direction, but I like OPNsense and their fork of it.

[16:47]

.......... (idle for 46mn)

RandalSchwartz

so, I'm at a place that thinks that a shot of alcohol is about 6 oz, like it was a beer thing.
they charge 14 BRL for it, but that's about 3.5 USD
so I'm making out like a bandit
... https://www.facebook.com/photo.php?fbid=10153078738704372&set=a.453592139371.245979.504874371&type=1&theater&notif_t=like

[17:33]

grody

thats all alcohol, no mixer?
shot here is 25ml (double 50ml) - costs vary but for most things (decentish) start at about £3 (GBP)

[17:42]

brycec

Viva Brazil, or something :p

[17:43]

grody

although cheap pub here sells double grey goose for 4.05
free mixer

[17:43]

RandalSchwartz

yeah
that's what makes it crazy

[17:44]

mercutio

how much is 6 oz? :)
oh wow!
so how many shots did you do randal? :)

[17:51]

RandalSchwartz

I had three drinks. I think that means I had 15 shots or so

[17:53]

mercutio

heh
a shot is normally 60 mls here i think

[17:53]

brycec

Sounds right, about 2oz

[17:53]

mercutio

when you mix your own drinks i tend to find it means you start with like 1:5
and shift to like 1:1

[17:54]

RandalSchwartz

a shot is typically about 1.5 oz
heading to my room... hopefully internet active there.

[17:54]

brycec

Good luck

[17:56]

mercutio

in brazil?
actually that looks like more than 6 oz

[17:56]

m0unds

seems reasonable to me

[18:07]

............................. (idle for 2h23mn)

mnathani_

does it make sense to create a FreeNAS Virtual Machine, with virtual disks residing on separate physical disks for the purpose of mirroring / RAID 10 redundancy. How difficult would it be to rebuild the RAID upon failure of one of the physical disks?

[20:30]

brycec

Relatively few VM solutions support hotplugging disks, so that's an issue. You'd also have to rebuild the drive before you could feed it back into kvm/qemu/whatnot
ie. new partition table, recreate volumes/containers on it, files if necessary, etc

[20:32]

m0unds

yea, i'd say that's something best left to the host box

[20:32]

brycec

Or best left to pass through the physical devices
brycec sits still and complies
wrong channel >.>

[20:32]

mnathani_

[20:36]

....... (idle for 33mn)

whats a popular disk i/o benchmark on windows
https://www.raymond.cc/blog/measure-actual-hard-disk-perfomance-under-windows/ found that<< but its 2 years old

[21:09]

m0unds

that's the only one i've seen
there's another tool that maps out i/o latency
don't remember the name of it though
oh, there's also iometer, but it's hosted on sf
and sf is shady nowadays

https://technet.microsoft.com/en-us/library/cc742157.aspx there's also winsat

[21:12]

mnathani_

https://gist.github.com/mnathani/9442e1e00e2ed32b89b6

[21:23]

BryceBot

Gist: "SSD Performance Benchmark - CrystalDiskMark 4.1.0 x64"

[21:23]

.................. (idle for 1h25mn)

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mnathani_ has quit IRC ()

[22:48]

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