[v6test] Test download server

Mon Mar 24 14:43:31 UTC 2008

Hello,

Kevin Day escreveu:
> I'm starting to do some performance/load testing of our download  
> cluster. If anyone wants to see what kind of speeds they're getting  
> from us right now, there are a couple of videos posted at http://testdownload.ipv6experiment.com 
> . Accessible both over v4 and v6, to help with speed comparisons.
>
> If you're getting really bad or really good download speeds off that,  
> let me know off list. I'm at the point where I can start looking for  
> routing/performance problems to get them fixed before it launches.
>   

Don't know if it's bad or good. Guess it is better to have greater 
speeds IPv6 than with IPv4.

$ time wget -4 http://testdownload.ipv6experiment.com/24-h264-aac.mp4 -O 
/dev/null
--10:06:20--  http://testdownload.ipv6experiment.com/24-h264-aac.mp4
Resolving testdownload.ipv6experiment.com... 216.14.100.2
Connecting to testdownload.ipv6experiment.com|216.14.100.2|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 36228544 (35M) [application/octet-stream]
Saving to: `/dev/null'

100%[===========================================================================================>] 
36,228,544  55.9K/s   in 10m 56s

10:17:16 (53.9 KB/s) - `/dev/null' saved [36228544/36228544]

real    10m56.229s
user    0m0.000s
sys     0m0.000s

$ time wget -6 http://testdownload.ipv6experiment.com/24-h264-aac.mp4 -O 
/dev/null
--10:06:26--  http://testdownload.ipv6experiment.com/24-h264-aac.mp4
Resolving testdownload.ipv6experiment.com... 
2001:4978:8:1:218:8bff:fe52:b5b0
Connecting to 
testdownload.ipv6experiment.com|2001:4978:8:1:218:8bff:fe52:b5b0|:80... 
connected.
HTTP request sent, awaiting response... 200 OK
Length: 36228544 (35M) [application/octet-stream]
Saving to: `/dev/null'

100%[===========================================================================================>] 
36,228,544   168K/s   in 2m 1s 

10:08:28 (292 KB/s) - `/dev/null' saved [36228544/36228544]

real    2m1.537s
user    0m0.000s
sys     0m0.010s

IPv6 peaked 400 KB/s at the start.

The hop distance is the same, and final RTT is the roughly the same 
(consider that our IPv6 connections at currently tunneled, over 
international IP links).

$ traceroute6 testdownload.ipv6experiment.com
traceroute to testdownload.ipv6experiment.com 
(2001:4978:8:1:218:8bff:fe52:b5b0), 30 hops max, 40 byte packets
 1  * * *
 2  gigaborder01-ge00.stech.net.br (2001:128c::2)  0.750 ms  0.744 ms  
0.737 ms
 3  2001:4830:e3:18::1 (2001:4830:e3:18::1)  213.752 ms  213.756 ms  
213.901 ms
 4  bbr01-p1-0.atln01.occaid.net (2001:4830:ff:e300::1)  224.363 ms  
224.352 ms  224.326 ms
 5  bbr01-g0-1.asbn01.occaid.net (2001:4830:ff:e250::1)  236.025 ms  
236.027 ms  236.009 ms
 6  core1.ash1.he.net (2001:504:0:2::6939:1)  256.682 ms  256.532 ms  
256.502 ms
 7  10g-1-2.core1.nyc4.ipv6.he.net (2001:470:0:36::2)  257.389 ms  
259.643 ms  260.611 ms
 8  10g-1-2.core1.chi1.ipv6.he.net (2001:470:0:4e::1)  260.509 ms  
263.390 ms  263.374 ms
 9  2001:470:0:7f::2 (2001:470:0:7f::2)  259.854 ms  253.682 ms  253.665 ms
10  unassigned.v6.your.org (2001:4978:8:1:218:8bff:fe52:b5b0)  253.624 
ms  254.204 ms  255.446 ms

$ traceroute testdownload.ipv6experiment.com
traceroute to testdownload.ipv6experiment.com (216.14.100.2), 30 hops 
max, 40 byte packets
 1  * * *
 2  gigaborder02-ge00.stech.net.br (200.152.255.7)  1.202 ms  1.196 ms  
1.186 ms
 3  200-184-234-77.ded.intelignet.com.br (200.184.234.77)  3.090 ms  
3.084 ms  3.242 ms
 4  200.184.254.101 (200.184.254.101)  17.631 ms  17.619 ms  17.610 ms
 5  intelig-ae1-ixrspo104.intelignet.com.br (200.184.193.213)  17.588 
ms  17.582 ms intelig-ae0-ixrspo104.intelignet.com.br (200.184.193.152)  
18.890 ms
 6  so-0-3-3.ar2.MIA1.gblx.net (64.210.28.193)  133.343 ms  132.631 ms  
132.618 ms
 7  te9-2-10G.ar2.CHI2.gblx.net (67.17.109.114)  176.584 ms  186.397 ms  
186.379 ms
 8  64.213.176.242 (64.213.176.242)  318.977 ms  344.256 ms  344.238 ms
 9  your.org.ge2-5.br02.chc01.pccwbtn.net (63.218.5.38)  231.135 ms  
231.128 ms  231.114 ms
10  testdownload.ipv6experiment.com (216.14.100.2)  231.155 ms  231.139 
ms  231.126 ms

Didn't test the video, as you told us it didn't matter at this point.

> Teredo users may get some really bad performance right now, this is a  
> known problem and I'm working on a solution.
>
> Right now I'm just testing our monitoring system. Each download is  
> logging things like MSS, packet loss, window size, etc. I'm not too  
> worried about problems with the video compression or content itself  
> yet, that comes next!
>
> Don't spread the URL all over the place, please. :)
>
> -- Kevin
>
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> V6test site list
> V6test at lists.your.org
> http://mail.your.org/mailman/listinfo/v6test
>   

-- 
Felipe Grazziotin
Suporte Técnico
fgrazziotin at stech.net.br

SouthTech Datacenter
www.stech.net.br

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