Pci Latency Tool Windows 10

Re:Windows 7 PCI Latency Tool? 2010/03/02 14:20:22 ( permalink ) The PCI latency timer settings are in the firmware of the hardware, not in the OS. If you have an AGP or PCI (not PCIe) video card it may be possible to make it lower (shorter interval that it claims unshared access to the bus), and improve problems with dropouts in the data. The PCI latency timer settings are in the firmware of the hardware, not in the OS. If you have an AGP or PCI (not PCIe) video card it may be possible to make it lower (shorter interval that it claims unshared access to the bus), and improve problems with dropouts in the data stream to the audio interface.

The network latency test tool PRTG counts and monitors the hops that data packets need to travel from one computer to another. You can also perform a traceroute on a specific device with a click of the mouse. Optimize your routing to allow data packets to travel across fewer routers and switches.

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Pci Latency Tool Windows 10 64-bit

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Message boards : Aggie The Pew message board : PCI Latency Timer

Message

I have a MSI-970A-G45 mobo with a 1055T.
I was fiddling with some overclocking stuff (thanks to Gary, I now have to overclock my system to make up for the AVX instruction set, or lack thereof :), and I came across this:
Under the Advanced Menu in my BIOS, there's a section titled 'PCI Latency Timer' It states:
'This item controls how long each PCI device can hold the bus before another takes over. When set to higher values, every PCI device can conduct transactions for a longer time and thus improve the effective PCI bandwidth. For better PCI performance, you should set the item to higher values'
My BOIS had the PCI Latency Timer at the lowest setting: 32 PCI Bus Clocks
I jacked it up to 192 PCI Bus Clocks.
I haven't run any benchmarks yet, but I figured that you heavy GPU/Sandy Bridge users might find the above interesting.
Neo

ID: 49803

The highest value is not over the best choice. On modern motherboard it is ok to set 64-96 ( and that is recommended default values) but I dont think it will boost any PG calculation in measurably time...
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Proud member of team Aggie The Pew. Go Aggie!

ID: 49805
The highest value is not over the best choice. On modern motherboard it is ok to set 64-96 ( and that is recommended default values) but I dont think it will boost any PG calculation in measurably time...

192 was not the highest setting I could have chosen. I think there were three higher settings. I chose 192 because it was in the middle, and my setting was set by MSI at the lowest (32 clocks).
Neo
ID: 49812

I did a bit of googling on this and it seems that PCI latency doesn't affect PCIe cards unless you're using a PCIe to PCI bridge. That being said I'd be interested to see some benchmarks with it turned all the way down and all the way up. If I get some time over the weekend I'll see if I can do this on my rig.

ID: 49835

Speaking of PCIe connections. I am using a PCIe extender cable. It's 4-5 inches long and works great. I had to find a way to get my 460 connected. So if you have a pc but no room to put the gpu it's a great way to go. Downside is that the card isn't firmly mounted so you have to be careful and not bump the case once you have it sitting in place. Just had to find a way to put my card to use for the challenge.

ID: 49836
Speaking of PCIe connections. I am using a PCIe extender cable. It's 4-5 inches long and works great. I had to find a way to get my 460 connected. So if you have a pc but no room to put the gpu it's a great way to go. Downside is that the card isn't firmly mounted so you have to be careful and not bump the case once you have it sitting in place. Just had to find a way to put my card to use for the challenge.

That is hardcore Rick. :)
Neo
ID: 49837
I have a MSI-970A-G45 mobo with a 1055T.
I was fiddling with some overclocking stuff (thanks to Gary, I now have to overclock my system to make up for the AVX instruction set, or lack thereof :), and I came across this:
Under the Advanced Menu in my BIOS, there's a section titled 'PCI Latency Timer' It states:
'This item controls how long each PCI device can hold the bus before another takes over. When set to higher values, every PCI device can conduct transactions for a longer time and thus improve the effective PCI bandwidth. For better PCI performance, you should set the item to higher values'
My BOIS had the PCI Latency Timer at the lowest setting: 32 PCI Bus Clocks
I jacked it up to 192 PCI Bus Clocks.
I haven't run any benchmarks yet, but I figured that you heavy GPU/Sandy Bridge users might find the above interesting.
Neo

Cool discussion. I've only messed with PCI Latency in context of RAM performance when OCing.
A couple of things I think I remember. (My memory is bad however.) I don't think PCI Latency applies to new PCI express devices. This isn't a performance tweaker in itself. I believe it is just determining the time a particular device has exclusive access to the bus. If you were crunching and also doing some gaming or video editing, it might become necessary to adjust this setting to smooth out stuttering. But you're lowering settings actually. Example would be that you're actually lowering frame rate so things are smoother. I'm guessing that there is no GPU/primegrid/prpnet performance enhancements with upping the timing if you're just crunching and not multi-tasking. But I'd love to hear if someone gets some slight improvement.
ID: 49925

Pci Latency Tool Win 10

Message boards : Aggie The Pew message board : PCI Latency Timer