Speed tests (WRT54G v3.1 and WRT54GL)

Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware
Goto page 1, 2, 3, 4, 5, 6  Next
Author Message
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Wed Jun 14, 2006 10:34    Post subject: Speed tests (WRT54G v3.1 and WRT54GL) Reply with quote
<last update: 2006-10-23>

In the hope that someone will find these data useful, I have joined and
summarized the results of various speed tests performed by "whgpjay",
"Matthiaz" (see later in this thread), "2q2" (in the Hansenet User Forum)
and me. The firmware version used was v23 SP2. The following values
apply both to the WRT54G v3.1 and to the GL, unless specified explicitly:

Ethernet switch alone:
> 70 Mbit/s

NAT:
30 Mbit/s (GL), 21 Mbit/s (G v3.1)

PPPoE + NAT:
23Mbit/s (GL)

RP-PPPoE + NAT:
≈ 6 Mbit/s (GL)

WLAN (WPA2) :
24 Mbit/s

PPPoE + NAT + WLAN (WPA2):
16Mbit/s at least (GL, see below)

RP-PPPoE + NAT + WLAN (WPA):
4.6 Mbit/s (GL)

Notes:

- These are throughput values.

- The difference in NAT speed between the Gv3.1 and the GL is,
most likely, due to different CPU types: BCM47xx vs. BCM53xx

- "PPPoE" applies to the default (Linksys) PPPoE driver.
Note that the open-source RP-PPPoE is much slower,
because of heavy CPU usage and/or implementation flaws.

- WLAN throughput of 24 Mbit/s was the maximum value obtained
under optimum conditions. To my experience, typical values are
16...20 Mbit/s for a "good" connection running at a nominal rate of
54 Mbit/s.

- PPPoE + NAT + WLAN (WPA2):
See <http://www.hansenet-user-forum.de/viewtopic.php?p=72094>
and other posts in that forum, which confirm a speed of 16 Mbit/s
at least.

- CPU load should not differ between WPA and WPA2; I have just
indicated what was used for testing.


Last edited by WaS on Sun Oct 28, 2007 9:11; edited 15 times in total
Sponsor
Matthiaz
DD-WRT Guru


Joined: 12 Jun 2006
Posts: 635

PostPosted: Mon Jul 24, 2006 17:16    Post subject: Reply with quote
Today I discovered another bandwith limitation - encrypted WLAN... Confused

You only get about 11Mbit with WPA2 and PPPOE and standard 200Mhz WRT54GL.
Overclocking to 233Mhz gains about another 2 Mbit.

That said, it is unfortunate that I will not be able to max out my internet connection without compromising my security (which I wont). Crying or Very sad

Anyways, it's not that bad. I mean, when do you really need 16 Mbit going down the line... Wink

BTW: WPA is just slightly faster than WPA2, maybe another 1 Mbit.
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Mon Jul 24, 2006 19:30    Post subject: Reply with quote
Matthiaz wrote:
Today I discovered another bandwith limitation - encrypted WLAN... Confused

I can't confirm that.
I get 16...25 Mbit/sec between my WRT 54 and my iBook, regardless of WPA or WPA2.

Matthiaz wrote:

You only get about 11Mbit with WPA2 and PPPOE and standard 200Mhz WRT54GL

See my notes regarding PPPoE.
Matthiaz
DD-WRT Guru


Joined: 12 Jun 2006
Posts: 635

PostPosted: Mon Jul 24, 2006 20:55    Post subject: Reply with quote
WaS wrote:
I can't confirm that.
I get 16...25 Mbit/sec between my WRT 54 and my iBook, regardless of WPA or WPA2.

My WLAN to WLAN speeds are a little low of about 22 Mbits, just like you discovered. But I am talking about downloading from the internet.

Code:
 PID USER     STATUS   RSS  PPID %CPU %MEM COMMAND
  146 root     R        264   145 49.9  1.8 bcrelay
    3 root     RWN        0     1 45.1  0.0 ksoftirqd_CPU0
 3841 root     S        716   153  2.1  5.0 dropbear
 3865 root     R        440  3842  1.3  3.0 top
  285 root     S       1496     1  0.5 10.5 openvpn
[...]

This is what I am getting with a single download running at about 1.1 Mbytes/sec.
If I use my PC to connect to the internet directly, my speed are around 1.6 Mbytes/sec.

I belive BCrelay is the broadcom driver doing the encryption, and ksoftirq my pppoe connection+NAT. Besides that, no other consuming process is running, and the cpu is maxed out => no more speed left...
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Mon Jul 24, 2006 21:02    Post subject: Reply with quote
Matthiaz wrote:
If I use my PC to connect to the internet directly, my speed are around 1.6 Mbytes/sec.

Do you mean: connect the PC to an ethernet port of the router,
so that the router has to handle only PPPoE?
Matthiaz
DD-WRT Guru


Joined: 12 Jun 2006
Posts: 635

PostPosted: Tue Jul 25, 2006 6:04    Post subject: Reply with quote
WaS wrote:
Do you mean: connect the PC to an ethernet port of the router,
so that the router has to handle only PPPoE?

No, connect the modem to a LAN port of the router, and dial in with my PC connected via WLAN. That way, the router does not have to handle the PPPOE stuff.
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Tue Jul 25, 2006 8:48    Post subject: Reply with quote
This is bad news :-(

Q: You have tested WPA2 with AES encryption, and WPA with TKIP,
as suggested by the specifications?
Matthiaz
DD-WRT Guru


Joined: 12 Jun 2006
Posts: 635

PostPosted: Tue Jul 25, 2006 14:07    Post subject: Reply with quote
The above TOP was taken with WPA2 AES, yes.

But it's not that bad. Not too many people even have a 10 or more Mbit DSL connections, and if they need full speed, they still can go back to WEP or just use a LAN port to surf. For me, that 12Mbit maximum with overclocking is ok for now. Maybe the code will get optimized eventually.
The test was done on DD-WRT v23 SP2 (07/22/06) vpn.
oolloo
DD-WRT Novice


Joined: 01 Jul 2006
Posts: 7

PostPosted: Fri Aug 04, 2006 8:23    Post subject: throughput is always half Reply with quote
throughput is always half, search google and you will find that most 802.11g is always around 25mbps or around half same goes for A and B, but who cares anyways I used wired ethernet for file transfer on LAN and 802.11 for internet, my internet tops out at 3 so 25 gives me plenty of headroom, like the web in north america will ever be more than 25Mbps, lol
_________________
I love satellite television and radio without ads if you do too and want to receive Dishnetwork channels without paying for them or Bell ExpressVu channels then go to http://www.templarworld.com these tiny units go for less than 3 bills US
Matthiaz
DD-WRT Guru


Joined: 12 Jun 2006
Posts: 635

PostPosted: Sun Aug 27, 2006 12:17    Post subject: Reply with quote
Matthiaz wrote:
[...]The test was done on DD-WRT v23 SP2 (07/22/06) vpn.

Update: seems like the bcrelay-process taking half of the cpu in my tests is related to the PPTP-server running on the router. Deaktivating it results in higher PPPoE throughput and less cpu consumption.

Thus, I belive WAN speeds higher than 11Mbit are easily possible.
jchuit
DD-WRT Novice


Joined: 16 Jun 2006
Posts: 5

PostPosted: Mon Aug 28, 2006 19:43    Post subject: wrt54g v 2.2 @ 216 mhz versus wrt54gl v1.1 @ 200 Mhz Reply with quote
Maybe nice to know:

Last week I did install a small ftp and http server, this for testing the Tarifa b025 firmware and loaded the original Linksys firmware 4.30.5 and third party firmwares.

I connected the server to the WAN port of the router and connected the LAN cable to my laptop. I used a 180 Mbyte file to copy.

wrt54g:
The HTTP speed is max around 3 Mbyte per second on average. (24Mbps)
FTP speed from WAN to LAN around 41 Mbps and from LAN to WAN around 22Mbps

wrt54gl:
The HTTP speed is max around 4 Mbyte per second on average. (32Mbps)
FTP speed from WAN to LAN around 46 Mbps (max average 38 Mbps) and from LAN to WAN around 20Mbps.

Conclusion:
The wrt54gl is much faster and the LAN to WAN speed is low but this seems firmware dependend.

Greetings,
jchuit

_________________
http://sourceforge.net/projects/tarifa


Last edited by jchuit on Mon Oct 23, 2006 17:23; edited 1 time in total
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Tue Aug 29, 2006 11:57    Post subject: Reply with quote
Matthiaz wrote:

Update: seems like the bcrelay-process taking half of the cpu in my tests is related to the PPTP-server running on the router. Deaktivating it results in higher PPPoE throughput and less cpu consumption.

Thus, I belive WAN speeds higher than 11Mbit are easily possible.

Why are you only "believing" it? OMG...

Is there anyone else, who has 1) a fast DSL connection and 2) the
technical understanding to perform a reliable speed test involving
PPPoE, NAT and WPA-encrypted WLAN? Thank you in advance
for your contribution!
Matthiaz
DD-WRT Guru


Joined: 12 Jun 2006
Posts: 635

PostPosted: Tue Aug 29, 2006 21:05    Post subject: Reply with quote
WaS wrote:
Matthiaz wrote:
Thus, I belive WAN speeds higher than 11Mbit are easily possible.

Why are you only "believing" it? OMG...

Well, since I have my unit overclocked to 233Mhz my downloads are maxing out my connection at about 1.4Mbyte/sec with a load of about 60% WITHOUT the PPTP server running. That is about 11-12Mbit/sec. That's why I can only belive. Wink

But I'd like to have the PPTP-server running, though... Wink
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Tue Aug 29, 2006 21:57    Post subject: Reply with quote
Ah, I understand Idea

I assumed you had a faster WAN connection, so I wondered
why you did not perform an exact measurement. Apologies
for my slightly impatient tone!
WaS
DD-WRT Guru


Joined: 06 Jun 2006
Posts: 731
Location: Erlangen, Germany

PostPosted: Mon Sep 04, 2006 17:33    Post subject: Reply with quote
Update:

I just had the possibility to test a WRT 54GL on a somewhat faster
DSL connection. In particular, I gained dome new data regarding
RP-PPPoE; see the message on top of this thread.


Addendum:

The above-mentioned experiments were carried out using v23 as of
Aug. 22. In the course of bug report #1701 an experimental release of
v23 with a (hopefully) faster RP-PPPoE was provided in the meantime.
However, the fast DSL connection is no longer available to me for such
experiments.

I'd be grateful if someone could try RP-PPPoE + NAT+ WLAN(WPA) using
this experimental release, too, on a fast (at least 6Mbit/s) DSL connection
and report the download speed that is reached. The file can be downloaded
via the the bugtracker; just open the bug #1701 to see the link.
Goto page 1, 2, 3, 4, 5, 6  Next Display posts from previous:    Page 1 of 6
Post new topic   Reply to topic    DD-WRT Forum Forum Index -> Broadcom SoC based Hardware All times are GMT

Navigation

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum