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Kernel: Add a 1-deep cache to Process::region_from_range()
This simple cache gets hit over 70% of the time on "g++ Process.cpp" and shaves ~3% off the runtime.
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2 changed files with 14 additions and 1 deletions
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@ -452,6 +452,11 @@ private:
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Region* region_containing(const Range&);
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NonnullOwnPtrVector<Region> m_regions;
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struct RegionLookupCache {
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Range range;
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Region* region { nullptr };
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};
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RegionLookupCache m_region_lookup_cache;
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pid_t m_ppid { 0 };
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mode_t m_umask { 022 };
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