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-   -   Write-combining (https://www.linuxquestions.org/questions/linux-hardware-18/write-combining-180053/)

thiagorobert 05-10-2004 03:46 PM
Write-combining
 
Is there an easy way to check weather PCI Write-Combining is enabled or not? I'm performing some measurements and from the numbers I got I've concluded that it can only be enabled. But I would like to be sure about it. Has anyone ever written a software that checks the PCI page flags? Does linux provide support for that (something like a macro I could use)?


Thanks in advance.

Electro 05-10-2004 04:01 PM
You can use "lspci -vv". Then to set it using setpci. Its very dangerous, if you do not know what you are doing.

thiagorobert 05-11-2004 08:32 AM
Are you sure you know what you talking about?

Electro 05-11-2004 09:38 PM
Yep, I'm sure "lspci -vv" will give deep information about pci devices and their settings.

Another way is look into the /proc directory.

Did you try it?


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