Re: Questions about alloc_large_system_hash() and TLB entries

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Eric Dumazet <[email protected]>
Date: Mon, 30 Jan 2006 10:03:40 +0100

> What would be the needed changes in the code to get both :
> 
>    - Allocate ram equally from all the nodes of the machine
> 
>    - Use large pages (2MB) to lower TLB stress

These two desires are mutually exclusive, I think.

If you want an 8MB hash table, for example, with 2MB mappings
you could use memory from a maximum of 4 nodes since the
2MB chunks have to be physically 2MB aligned and 2MB contiguous.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux