StackOverflow Questions for Tag: false-sharing

hookenz

Reputation: 38947

How and when to align to cache line size?

c++ccachingfalse-sharing

Score: 76

Answers: 2

Nathan Doromal

Reputation: 3547

What does the C++ compiler do to ensure that different but adjacent memory locations are safe to be used on different threads?

c++multithreadingthread-safetyfalse-sharing

Score: 47

Answers: 2

jdphenix

Reputation: 15445

Parallel Framework and avoiding false sharing

c#performanceparallel-processingfalse-sharing

Score: 12

Answers: 2

fabian

Reputation: 1881

Why does Perf c2c display cachline contention for read-only variables?

c++multithreadingperffalse-sharing

Score: 1

Answers: 0

fabian

Reputation: 1881

Why don't I see more false sharing when different Threads write to the same variable?

c++multithreadingintelperffalse-sharing

Score: 1

Answers: 1

progr

Reputation: 63

Can false sharing happen in Direct-Mapped Cache?

c++cachingcpucpu-architecturefalse-sharing

Score: 0

Answers: 3

Rishi Jain

Reputation: 133

Why am I getting cache miss while accessing a variable, only updated by the same thread?

c++multithreadingcachingperffalse-sharing

Score: 1

Answers: 0

aolo2

Reputation: 101

How can a weaker memory model prevent slowdown from false sharing?

multithreadingx86armcpu-architecturefalse-sharing

Score: 6

Answers: 0

egev

Reputation: 51

Thread safety with std::vector (accessing and modifying different vector items with different threads)

c++multithreadingthread-safetyfalse-sharing

Score: 0

Answers: 0

SinkOrSwim

Reputation: 1

Multicore Processor False Sharing Problem

multiprocessingfalse-sharing

Score: 0

Answers: 0

apadana

Reputation: 722

How minimize "false sharing" in this array processing with OpenMP?

optimizationparallel-processingopenmphpcfalse-sharing

Score: 3

Answers: 1

Aean

Reputation: 779

What is "false sharing"? How to reproduce / avoid it?

cachingoptimizationparallel-processingcpu-architecturefalse-sharing

Score: 20

Answers: 2

user11313931

Reputation:

What is true sharing?

c++false-sharing

Score: 12

Answers: 4

Mercurial

Reputation: 1

How to modify a Linux kernel header file without compiling like livepatch?

linux-kernelfalse-sharinghotpatching

Score: 0

Answers: 0

Rajesh Shashi Kumar

Reputation: 137

Is there false-sharing when writing to unique elements of an output array?

multithreadingopenmpfalse-sharing

Score: 0

Answers: 1

Zeosleus

Reputation: 51

When examining False Sharing, why are there more L1d cache misses when running with sibling-threads than when running with independent threads

x86cpu-architecturecpu-cacheamd-processorfalse-sharing

Score: 3

Answers: 1

Claudio Tomasi

Reputation: 153

Workaround for writing in different entries of the same vector in multithreading

c++multithreadingoptimizationthread-safetyfalse-sharing

Score: 1

Answers: 1

Dan Kennedy

Reputation: 538

How can one analyze cacheline contention for multithreaded programs on Linux/AMD? Like "perf c2c" can for Intel

linuxcpu-cacheperfamd-processorfalse-sharing

Score: 1

Answers: 1

Chris Costa

Reputation: 691

Parallelise 2 for loops with OpenMP

cmultithreadingparallel-processingopenmpfalse-sharing

Score: 0

Answers: 1

Stan

Reputation: 327

How many cycles does false sharing cost?

cperformancearmx86-64false-sharing

Score: 0

Answers: 0

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StackOverflow Questions for Tag: false-sharing

How and when to align to cache line size?

What does the C++ compiler do to ensure that different but adjacent memory locations are safe to be used on different threads?

Parallel Framework and avoiding false sharing

Why does Perf c2c display cachline contention for read-only variables?

Why don&#39;t I see more false sharing when different Threads write to the same variable?

Can false sharing happen in Direct-Mapped Cache?

Why am I getting cache miss while accessing a variable, only updated by the same thread?

How can a weaker memory model prevent slowdown from false sharing?

Thread safety with std::vector (accessing and modifying different vector items with different threads)

Multicore Processor False Sharing Problem

How minimize &quot;false sharing&quot; in this array processing with OpenMP?

What is &quot;false sharing&quot;? How to reproduce / avoid it?

What is true sharing?

How to modify a Linux kernel header file without compiling like livepatch?

Is there false-sharing when writing to unique elements of an output array?

When examining False Sharing, why are there more L1d cache misses when running with sibling-threads than when running with independent threads

Workaround for writing in different entries of the same vector in multithreading

How can one analyze cacheline contention for multithreaded programs on Linux/AMD? Like &quot;perf c2c&quot; can for Intel

Parallelise 2 for loops with OpenMP

How many cycles does false sharing cost?

Why don't I see more false sharing when different Threads write to the same variable?

How minimize "false sharing" in this array processing with OpenMP?

What is "false sharing"? How to reproduce / avoid it?

How can one analyze cacheline contention for multithreaded programs on Linux/AMD? Like "perf c2c" can for Intel