linux/arch/i386
Christoph Lameter 6c036527a6 [PATCH] mostly_read data section
Add a new section called ".data.read_mostly" for data items that are read
frequently and rarely written to like cpumaps etc.

If these maps are placed in the .data section then these frequenly read
items may end up in cachelines with data is is frequently updated.  In that
case all processors in an SMP system must needlessly reload the cachelines
again and again containing elements of those frequently used variables.

The ability to share these cachelines will allow each cpu in an SMP system
to keep local copies of those shared cachelines thereby optimizing
performance.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Shobhit Dayal <shobhit@calsoftinc.com>
Signed-off-by: Christoph Lameter <christoph@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-07 18:23:46 -07:00
..
boot [PATCH] coverity: i386: build.c: negative return to unsigned fix 2005-06-28 21:20:33 -07:00
crypto [PATCH] arch/i386/crypto/aes.c: fix sparse warnings 2005-06-25 16:24:59 -07:00
kernel [PATCH] mostly_read data section 2005-07-07 18:23:46 -07:00
lib [PATCH] Remove i386_ksyms.c, almost. 2005-06-23 09:45:11 -07:00
mach-default [PATCH] x86_64: CPU hotplug support 2005-06-25 16:24:30 -07:00
mach-es7000 Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mach-generic Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mach-visws [PATCH] i386: cleanup boot_cpu_logical_apicid variables 2005-06-25 16:25:05 -07:00
mach-voyager [PATCH] x86: i8253/i8259A lock cleanup 2005-06-30 08:45:10 -07:00
math-emu Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mm [PATCH] iounmap debugging 2005-07-07 18:23:35 -07:00
oprofile [PATCH] xen: x86: Rename usermode macro 2005-06-23 09:45:14 -07:00
pci [PATCH] PCI: pci_assign_unassigned_resources() on x86 2005-07-01 13:35:50 -07:00
power [PATCH] MTRR suspend/resume cleanup 2005-07-07 18:23:42 -07:00
defconfig [PATCH] swsusp: kill config_pm_disk 2005-06-25 16:24:32 -07:00
Kconfig [PATCH] kdump: Kconfig 2005-06-25 16:24:53 -07:00
Kconfig.debug Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] biarch compiler support for i386 2005-06-23 09:45:07 -07:00