Re: [patch 02/10] SLUB: Noinline some functions to avoid them being folded into alloc/free

On Sat, Oct 27, 2007 at 08:31:58PM -0700, Christoph Lameter wrote:
> Some function tend to get folded into __slab_free and __slab_alloc
> although they are rarely called. They cause register pressure that
> leads to bad code generation.

Nice - an example of uninlining to directly improve performance!

-- 
Mathematics is the supreme nostalgia of our time.
-
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 00/10] SLUB: SMP regression tests on Dual Xeon E5345 (8p) and new performance patches
  - From: Christoph Lameter <[email protected]>
- [patch 02/10] SLUB: Noinline some functions to avoid them being folded into alloc/free
  - From: Christoph Lameter <[email protected]>

Prev by Date: Re: [stable] 2.6.23 regression: top displaying 9999% CPU usage
Next by Date: 32bit builds on x86-64 host.
Previous by thread: Re: [patch 02/10] SLUB: Noinline some functions to avoid them being folded into alloc/free
Next by thread: [patch 01/10] SLUB: Consolidate add_partial and add_partial_tail to one function
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]