Staging
v0.5.1
v0.5.1
https://github.com/torvalds/linux
Revision 839052d27e8db0c1545256fe5827abcd00fb51c5 authored by Huang, Xiaolan on 15 May 2008, 02:18:41 UTC, committed by Tony Luck on 15 May 2008, 16:54:19 UTC
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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Tip revision: 839052d27e8db0c1545256fe5827abcd00fb51c5 authored by Huang, Xiaolan on 15 May 2008, 02:18:41 UTC
[IA64] fix personality(PER_LINUX32) performance issue
[IA64] fix personality(PER_LINUX32) performance issue
Tip revision: 839052d
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| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
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| .gitignore | -rw-r--r-- | 682 bytes |
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| CREDITS | -rw-r--r-- | 90.5 KB |
| Kbuild | -rw-r--r-- | 2.4 KB |
| MAINTAINERS | -rw-r--r-- | 97.3 KB |
| Makefile | -rw-r--r-- | 53.7 KB |
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