On Wed, Jul 13, 2011 at 07:30, Neil Baylis <neil.baylis@xxxxxxxxx> wrote: > For example, would it be possible to create a block driver that does not use > the buffer cache? I think the answer must be 'no' because the caching > happens before the block driver gets any requests to move data. something like dd iflag=direct or oflag=direct does? btw, you are still under effect of hardware cache installed in the hard disk itself...so what you see is actually IMHO a cumulative effect of caching happen in the entire system -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
