original_kernel/arch/ia64
Huang, Xiaolan 839052d27e [IA64] fix personality(PER_LINUX32) performance issue
The patch aims to fix a performance issue for the syscall
personality(PER_LINUX32).

On IA-64 box, the syscall personality (PER_LINUX32) has poor performance
because it failed to find the Linux/x86 execution domain. Then it tried
to load the kernel module however it failed always and it used the default
execution domain PER_LINUX instead. Requesting kernel modules is very
expensive. It caused the performance issue. (see the function
lookup_exec_domain in kernel/exec_domain.c).

To resolve the issue, execution domain Linux/x86 is always registered in
initialization time for IA-64 architecture.

Signed-off-by: Xiaolan Huang <xiaolan.huang@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2008-05-15 09:54:19 -07:00
..
configs
dig
hp
ia32 [IA64] fix personality(PER_LINUX32) performance issue 2008-05-15 09:54:19 -07:00
kernel [IA64] Properly unregister legacy interrupts 2008-05-14 16:00:14 -07:00
kvm
lib
mm [IA64] fix personality(PER_LINUX32) performance issue 2008-05-15 09:54:19 -07:00
oprofile
pci
scripts
sn
uv
Kconfig
Kconfig.debug
Makefile
install.sh
module.lds