Re: Questions about the zoned page frame allocator and fix mapped addresses

2015-04-01 Thread Sunny Shah
On Mon, Mar 30, 2015 at 10:46 PM, wrote: > On Mon, 30 Mar 2015 20:25:38 +0530, Sunny Shah said: > > >- The book says, about releasing page frames to the per CPU cache - > "no > >page frame is ever released to the cold cache: the kernel always > assumes > >the freed page frame is hot w

Re: Questions about the zoned page frame allocator and fix mapped addresses

2015-03-30 Thread Valdis . Kletnieks
On Mon, 30 Mar 2015 20:25:38 +0530, Sunny Shah said: >- The book says, about releasing page frames to the per CPU cache - "no >page frame is ever released to the cold cache: the kernel always assumes >the freed page frame is hot with respect to the hardware cache". What is >the rea

Questions about the zoned page frame allocator and fix mapped addresses

2015-03-30 Thread Sunny Shah
Hello, I have few more questions from my reading of "Understanding the Linux Kernel", chapter "Memory Management". - The book says, about releasing page frames to the per CPU cache - "no page frame is ever released to the cold cache: the kernel always assumes the freed page frame is hot