Welcome to the MacNN Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Notebooks > networking benchmark PB667

networking benchmark PB667
Thread Tools
Mac Enthusiast
Join Date: May 2002
Status: Offline
Reply With Quote
Jul 1, 2002, 01:04 PM
 
Has anyone got a benchmark showing the PBs exceeding 10Mbit/s?? Im getting a 100Mbit FD connection but only sub 10Mbit/s throughput. The same switch port gives my PC full 100Mbit.

I'll be a little bit annoyed if this 10/100/1000 card sits on a bus that cant deal with it <img border="0" title="" alt="[Wink]" src="wink.gif" />

RM
     
Mac Enthusiast
Join Date: Sep 1999
Location: Arcadia, CA USA
Status: Offline
Reply With Quote
Jul 1, 2002, 01:59 PM
 
When I am exchanging files from one Powerbook Titanium to another iBook or Titanium through a crossover cable or 10/100 switch, I get 8 MB (not Mb) of information through. Of course, they are mostly large (20 MB+) chunks of large files. Small files ares slower.

Both ends must be the same speed in order to accommodate the full benefit of 100BaseTX.

Gigabit's speed benefit is marginal and it does not work through crossover cable--a gigabit switch (no gigabit hub) is essential.
     
Mac Enthusiast
Join Date: Sep 1999
Location: Arcadia, CA USA
Status: Offline
Reply With Quote
Jul 1, 2002, 02:00 PM
 
One more thing. Only if both sides are running OS 10.1.x.

OS 9.x? Forget about it. To get decent TCP/IP file transfer, 10.1.x is the ticket.
     
rm199  (op)
Mac Enthusiast
Join Date: May 2002
Status: Offline
Reply With Quote
Jul 1, 2002, 02:21 PM
 
good to know the box can handle it, I'll try a cross over to another laptop and see how that goes.

Disagree with the gigabit speed being marginal, certainly on a slow bus machine but when its on a 66mhz/64bit PCI its hard to live without (you can start to use the network for your storage). in fact gigabit ethernet is just fibrechannel with different framing on top. I agree that on a PB it would be almost no difference (the latency for shared drives might be much better but thats it)

What I do know is that standard PCI is fine when using 100Mbit and with FD at both sides I should be getting 8MB/s like yourself not 0.8 was just checking I dont need to install some strange apple driver (im a mac newbie)

RM
     
rm199  (op)
Mac Enthusiast
Join Date: May 2002
Status: Offline
Reply With Quote
Jul 1, 2002, 02:30 PM
 
oh and incase you want to try it out, you can run 1000basetx with a crossover cable. Make sure its cat5e or cat6 (350Mhz) however and also the crossover wiring is a little different - they changed the physical layer. Im sure you can find a wiring pinout on the web somewhere.

RM
     
rm199  (op)
Mac Enthusiast
Join Date: May 2002
Status: Offline
Reply With Quote
Jul 1, 2002, 04:26 PM
 
sorry dont mean to write my own thread but thought i better clarify... you can do gigabit crossover with standard 4 pair cat5, 5e or 6 recommended but not needed.

RM
     
Mac Enthusiast
Join Date: Sep 1999
Location: Arcadia, CA USA
Status: Offline
Reply With Quote
Jul 1, 2002, 04:38 PM
 
I consider 50% or 75% increase in performance "marginal" when:

0. the cost for gigabit switch is easily twenty times the cost of a 100TX switch.
1. the theoretical maximum is 10 times faster.
2. cost for PC gigabit card is five times higher than 100TX

Granted, four 10,000-RPM, striped SCSI-320 drives may increase the throughput of gigabit ethernet. After all, 18 MB/sec is bumping into the actual throughput of many stand-alone ATA hard drives.
     
   
Thread Tools
Forum Links
Forum Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On
Top
Privacy Policy
All times are GMT -4. The time now is 06:34 AM.
All contents of these forums © 1995-2015 MacNN. All rights reserved.
Branding + Design: www.gesamtbild.com
vBulletin v.3.8.8 © 2000-2015, Jelsoft Enterprises Ltd., Content Relevant URLs by vBSEO 3.3.2