AJUK said:Yes it does, the QoS service.
Turn the service off, it is a complete waste of resources.
http://www.blackviper.com/WinXP/Services/QoS_RSVP.htm
Fine, I turned it off when I was using Windows and it made a difference. I don't care either way.marc2003 said:i just knew someone was going to post that. it's cobblers.![]()
AJUK said:I don't care either way.![]()
Clarification about the use of QoS in end computers that are running Windows XP
As in Windows 2000, programs can take advantage of QoS through the QoS APIs in Windows XP. One hundred percent of the network bandwidth is available to be shared by all programs unless a program specifically requests priority bandwidth. This "reserved" bandwidth is still available to other programs unless the requesting program is sending data. By default, programs can reserve up to an aggregate bandwidth of 20 percent of the underlying link speed on each interface on an end computer. If the program that reserved the bandwidth is not sending sufficient data to use it, the unused part of the reserved bandwidth is available for other data flows on the same host.
Wiggins said:I take it then that the QOS Packet Scheduler reserves this bandwidth for the likes of programs wanting updates etc...
Wiggins said:Just ran TCP Optimizer.
MTU was set to 1200![]()
Connection speed on this was @ 2000 kbps and I have 8meg although I do lay asleep at night dreaming that BT would send the magic man out to make it a FULL 8meg.
Anyway, I set the MTU to 1500 and the connection speed to 8meg, low and behold the speed has actually increased.![]()
Nice One
Really? It's network dependent... that may be the ideal setting for BT Wholesale - not necessarily any other provider...richardbirks said:The optimal size for MTU on ADSL is 1458... this is the value BT Wholesale use across their ATM backbone.
You'll get good results if you set this on your router and/or network adapter.
--
Richard.
ping -f -l 1472 www.google.co.uk
Packet needs to be fragmented but DF set.
You can do a lot more damage than good if you don't know what you're changing with these tools. a lot of them suggest huge RWINs - which is just ridiculous and will hurt your download. A lot of thought has to go into tcp "optimisation".AJUK said:Download TCP Optimizer and let it work out the best settings for you.![]()
Unless you're LLU then your ISP is almost certainly peering on BT Wholesale and in which case 1458 is the way to go.=walls= said:Really? It's network dependent... that may be the ideal setting for BT Wholesale - not necessarily any other provider...
=wiggins= said:Connection speed on this was @ 2000 kbps and I have 8meg although I do lay asleep at night dreaming that BT would send the magic man out to make it a FULL 8meg.
richardbirks said:Unless you're LLU then your ISP is almost certainly peering on BT Wholesale and in which case 1458 is the way to go.
richardbirks said:Are we saying BT are now offering ISPs (forgetting about ISPs that are LLU and have their DSLAMs in exchanges) alternatives to the L2TP from exchange to ISP backbone?
L2TP incurs a packet overhead of 42 bytes, meaning the best that you can hope to achieve (or the best that you could hope to achieve) was 1500 - 42 bytes of overhead, giving you a theoretical optimal MTU of 1458 bytes.