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30325d1771
android_kernel_xiaomi_sm8350/arch/ia64
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David Mosberger-Tang 30325d1771 [IA64] speed up syscall path a bit more 
Recently I noticed that clearing ar.ssd/ar.csd right before srlz.d is
causing significant stalling in the syscall path.  The patch below
fixes that by moving the register-writes after srlz.d.  On a Madison,
this drops break-based getpid() from 241 to 226 cycles (-15 cycles).

Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-04-25 13:03:16 -07:00
..
configs Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
hp Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ia32 [IA64] ia32_signal.c: erroneous use of memset/memcpy 2005-04-22 13:06:47 -07:00
kernel [IA64] speed up syscall path a bit more 2005-04-25 13:03:16 -07:00
lib Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
mm [PATCH] freepgt: hugetlb_free_pgd_range 2005-04-19 13:29:16 -07:00
oprofile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
pci Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
scripts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sn [IA64-SGI] altix: tioca chip driver (agp) 2005-04-25 11:35:54 -07:00
defconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig.debug Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile 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