Re: [PATCH] use local_t for page statistics

On Saturday 07 January 2006 04:48, Nick Piggin wrote:

> 
> At a 3x cache footprint cost? (and probably more than 3x for icache, though
> I haven't checked) And I think hardware trends are against us. (Also, does
> it have race issues with nested interrupts that Andrew noticed?)

Well the alternative would be to just let them turn off interrupts.
If that's cheap for them that's fine too. And would be equivalent
to what the current high level code does.

If you worry about icache footprint it can be even done out of line.

-Andi
-
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/

---

• References:
  • [PATCH] use local_t for page statistics
    • From: Benjamin LaHaise <[email protected]>
  • Re: [PATCH] use local_t for page statistics
    • From: Andi Kleen <[email protected]>
  • Re: [PATCH] use local_t for page statistics
    • From: Nick Piggin <[email protected]>

• Prev by Date: Re: [2.6 patch] remove drivers/net/tulip/xircom_tulip_cb.c
• Next by Date: Re: [patch 03/21] mutex subsystem, add asm-generic/mutex-[dec|xchg|null].h implementations
• Previous by thread: Re: [PATCH] use local_t for page statistics
• Next by thread: Re: [PATCH] use local_t for page statistics
• Index(es):
  • Date
  • Thread

[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]