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| author | Nitin Gupta <nitin.m.gupta@oracle.com> | 2016-03-30 11:17:13 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-05-20 18:44:27 -0700 |
| commit | 24e49ee3d76b70853a96520e46b8837e5eae65b2 (patch) | |
| tree | 4893dd3011dc7a4db11082ce6953d1e1d2c13803 /Documentation | |
| parent | b1ac6b7b4061f6c92bacf6938f94fb61b2fbf7f3 (diff) | |
sparc64: Reduce TLB flushes during hugepte changes
During hugepage map/unmap, TSB and TLB flushes are currently
issued at every PAGE_SIZE'd boundary which is unnecessary.
We now issue the flush at REAL_HPAGE_SIZE boundaries only.
Without this patch workloads which unmap a large hugepage
backed VMA region get CPU lockups due to excessive TLB
flush calls.
Orabug: 22365539, 22643230, 22995196
Signed-off-by: Nitin Gupta <nitin.m.gupta@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions