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![]() 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> |
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.. | ||
configs | ||
dig | ||
hp | ||
ia32 | ||
kernel | ||
kvm | ||
lib | ||
mm | ||
oprofile | ||
pci | ||
scripts | ||
sn | ||
uv | ||
install.sh | ||
Kconfig | ||
Kconfig.debug | ||
Makefile | ||
module.lds |