Intel driver - DRI profiling

Kevin DeKorte kdekorte at gmail.com
Fri Mar 14 07:13:55 PDT 2008


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Vedran Rodic wrote:
>>  The driver is, in this case, continously allocating new buffers from the
>>  kernel to use as batch- and perhaps state buffers. Each new buffer
>>  allocation means new pages need to be allocated and faulted in using
>>  nopfn. This is costly.
> 
> Seems obvious that it should re-use the old buffers, no?

Or would it be better to just allocate a bunch of buffers and keep a
pool of them? Or do allocations of more than one buffer at a time?

Kevin


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