hi: thank you all for the reply.
i found DMA is disabled.. so will enable it first and try.. then as Hugo has suggested to check for the patch.. i will do it.. don't know why kernel image from debain sid did;t work for me.. but from debain stable it is working and performance is good. Thanks Paras. On 9/13/05, Jan Willem Stumpel <[EMAIL PROTECTED]> wrote: > Paras pradhan wrote: > > hi: > > > > i want to build a custom 2.6.x kernel for desktop systems. i > > have build kernel 2.6.12-3 successfully , but the performace of > > the kernel 2.4.27-1-386 ( from debian sid mirror ) is much > > better than kernel 2.6.12-3 that i built from source. for ex: > > in kernel 2.4.27-1 if it takes 5 minutes to burn a CD, it will > > take around 20 minutes in my customized kernel. Also running 2 > > or more applications is very sppedy in 2.4.27-1 than my custom > > built kernel. > > > > what shouild i add in .config before building my 2.6.x keries > > so that the perfomance will be equal or better than 24.x series > > kernel. > > You may not have DMA enabled. Check in menuconfig > > Device Drivers ---> > ATA/ATAPI/MFM/RLL support ---> > Generic PCI bus-master DMA support > > And perhaps > > Use PCI DMA by default when available > > Regards, Jan > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > >
