Re: [rfc] SLQB: YASA

["Luiz Fernando N. Capitulino" <lcapitulino@mandriva.com.br>]

Em Tue, 8 Apr 2008 13:57:17 +0200
Nick Piggin <npiggin@suse.de> escreveu:

| Here is my more working version of SLQB. 
| 
| Was experimenting with a couple of different ways to do remote freeing,
| but it is really hard to tune properly without having "real" workloads,
| due to cache effects.
| 
| Anyway, same comments apply. Patch is against mainline.

 I get the following error when compiling without CONFIG_SMP

"""
In file included from include/linux/rcupdate.h:52,
                 from include/linux/slqb_def.h:15,
                 from include/linux/slab.h:121,
                 from include/asm/pgtable_32.h:22,
                 from include/asm/pgtable.h:241,
                 from include/linux/mm.h:40,
                 from arch/x86/kernel/pci-dma_32.c:12:
include/linux/percpu.h: In function '__percpu_alloc_mask':
include/linux/percpu.h:106: error: implicit declaration of function 'kzalloc'
include/linux/percpu.h:106: warning: return makes pointer from integer without a cast
In file included from include/asm/pgtable_32.h:22,
                 from include/asm/pgtable.h:241,
                 from include/linux/mm.h:40,
                 from arch/x86/kernel/pci-dma_32.c:12:
include/linux/slab.h: At top level:
include/linux/slab.h:272: error: conflicting types for 'kzalloc'
include/linux/percpu.h:106: error: previous implicit declaration of 'kzalloc' was here
ICECC[27645] 15:49:30: Compiled on XXXXXXXX
make[1]: *** [arch/x86/kernel/pci-dma_32.o] Error 1
make: *** [arch/x86/kernel] Error 2

"""

 Could not figure out what the problem is.

 Regarding performance tests, I saw that Christoph has some
interesting test modules in his git repository. Do you think it's
worth to run them?

-- 
Luiz Fernando N. Capitulino

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