linux/arch/ia64
Fenghua Yu 3bc207d2b7 [IA64] fsys_getcpu for IA64
On 1.6GHz Montectio Tiger4, the following performance data is measured with
kernel built with defconfig which has NUMA configured:

Fastest sys_getcpu: 502 itc counts.
Fastest fsys_getcpu: 28 itc counts.

fsys_getcpu performance is largly impacted by whether data (node_to_cpu_map
etc) is in cache. It can take fsys_getcpu up to ~150 itc counts in cold
cache case.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-03-07 16:27:09 -08:00
..
configs
dig
hp
ia32 [IA64] sync compat getdents 2007-03-06 14:49:24 -08:00
kernel [IA64] fsys_getcpu for IA64 2007-03-07 16:27:09 -08:00
lib [IA64] always build arch/ia64/lib/xor.o 2007-03-06 14:48:52 -08:00
mm [IA64] point saved_max_pfn to the max_pfn of the entire system 2007-03-06 14:47:54 -08:00
oprofile
pci
scripts
sn [IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function 2007-03-07 14:57:35 -08:00
defconfig
install.sh
Kconfig
Kconfig.debug
Makefile
module.lds