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| author | Alex Williamson <alex.williamson@redhat.com> | 2010-11-05 16:01:29 -0600 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2010-11-16 09:31:18 -0600 |
| commit | b538e53ee7e8b9e2920d3286b480276cef209fd4 (patch) | |
| tree | 75fa15ef85234efa3cab5e0c4f7cd5ffdfd7bb9b /cursor.c | |
| parent | 4cff0a5994d0300e6e77e90d3354aa517a120539 (diff) | |
apic: Don't iterate past last used apic
local_apics are allocated sequentially and never removed, so
we can stop any iterations that go to MAX_APICS as soon as we
hit the first NULL. Looking at a small guest running a virtio-net
workload with oprofile, this drops apic_get_delivery_bitmask()
from #3 in the profile to down in the noise.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'cursor.c')
0 files changed, 0 insertions, 0 deletions