| commit | 05e33fc20ea5e493a2a1e7f1d04f43cdf89f83ed | |
| author | Jack Steiner <steiner@sgi.com> | |
| Fri, 5 Aug 2011 14:09:00 +0000 (5 09:09 -0500) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Fri, 5 Aug 2011 21:48:34 +0000 (5 23:48 +0200) | ||
| tree | dceeb82c6aa858f734a96c908e54070613002466 | treesnapshot (tar.gz zip) |
| parent | a3ea14df0e383f44dcb2e61badb71180dbffe526 | commitdiff |
x86, UV: Remove UV delay in starting slave cpus
Delete the 10 msec delay between the INIT and SIPI when starting
slave cpus. I can find no requirement for this delay. BIOS also
has similar code sequences without the delay.
Removing the delay reduces boot time by 40 sec. Every bit helps.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20110805140900.GA6774@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Delete the 10 msec delay between the INIT and SIPI when starting
slave cpus. I can find no requirement for this delay. BIOS also
has similar code sequences without the delay.
Removing the delay reduces boot time by 40 sec. Every bit helps.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20110805140900.GA6774@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| arch/x86/kernel/apic/x2apic_uv_x.c | diffblobblamehistory |