diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2018-09-17 16:29:13 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2018-09-27 20:39:38 +0200 |
| commit | 69c31e69df3d2efc4ad7f53d500fdd920d3865a4 (patch) | |
| tree | 0615952a93400f07f1529dcb3d063f5dc4177a11 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | x86/mm/cpa: Add large page preservation statistics (diff) | |
| download | linux-dev-69c31e69df3d2efc4ad7f53d500fdd920d3865a4.tar.xz linux-dev-69c31e69df3d2efc4ad7f53d500fdd920d3865a4.zip | |
x86/mm/cpa: Avoid static protection checks on unmap
If the new pgprot has the PRESENT bit cleared, then conflicts vs. RW/NX are
completely irrelevant.
Before:
1G pages checked: 2
1G pages sameprot: 0
1G pages preserved: 0
2M pages checked: 540
2M pages sameprot: 466
2M pages preserved: 47
4K pages checked: 800770
4K pages set-checked: 7668
After:
1G pages checked: 2
1G pages sameprot: 0
1G pages preserved: 0
2M pages checked: 540
2M pages sameprot: 466
2M pages preserved: 47
4K pages checked: 800709
4K pages set-checked: 7668
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Dave Hansen <dave.hansen@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Bin Yang <bin.yang@intel.com>
Cc: Mark Gross <mark.gross@intel.com>
Link: https://lkml.kernel.org/r/20180917143546.245849757@linutronix.de
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions