PATCH: Always use ll/sc for mips

Ralf Baechle ralf@oss.sgi.com
Tue Jul 2 13:08:00 GMT 2002


On Tue, Jul 02, 2002 at 11:40:45AM -0700, H. J. Lu wrote:

> The ll/sc emulation is implemented in 2.4.0 and above. This patch makes
> glibc always use ll/sc.

Which means the overhead of two syscalls instead of one sysmips() call
for something that is assumed to be dirt cheap.  R3000, R5900 etc.
users won't this patch you, which'll have significant impact on their
glibc performance.

  Ralf



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