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 [IA64] update sn2_defconfig 2006-10-17 14:55:45 -07:00
dig [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
hp [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
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 Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
pci [IA64] replace kmalloc+memset with kzalloc 2006-12-07 13:46:43 -08:00
scripts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sn [IA64] fix NULL pointer in ia64/irq_chip-mask/unmask function 2007-03-07 14:57:35 -08:00
Kconfig ATA convert GSI to irq on ia64 2007-02-15 18:04:53 -05:00
Kconfig.debug [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
Makefile [IA64] add vmlinuz target 2006-06-21 14:31:07 -07:00
defconfig [PATCH] sgiioc4: Always share IRQ 2006-07-31 13:28:40 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
module.lds Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00