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bug #1598: Let MaxSizeVector respect alignment of objects and add a unit test

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Also revert 8b3d9ed081
This commit is contained in:
Christoph Hertzberg
2018-09-14 20:21:56 +02:00
parent d7378aae8e
commit 007f165c69
4 changed files with 86 additions and 8 deletions
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7
unsupported/Eigen/CXX11/src/ThreadPool/EventCount.h
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@@ -169,7 +169,9 @@ class EventCount {
class Waiter {
friend class EventCount;
std::atomic<Waiter*> next;
// Align to 128 byte boundary to prevent false sharing with other Waiter
// objects in the same vector.
EIGEN_ALIGN_TO_BOUNDARY(128) std::atomic<Waiter*> next;
std::mutex mu;
std::condition_variable cv;
uint64_t epoch;
@@ -179,9 +181,6 @@ class EventCount {
kWaiting,
kSignaled,
};
// Pad past 128 byte boundary to prevent false sharing with other Waiter
// objects in the same vector.
char pad_[128];
};
private: