Implementing Our Own Cache Replacement Policy

[Alanoud Alsalman]

Hi,

My team and I would like to implement an enhanced LRU cache replacement policy.
My question is: how do we do it based on sniper codes and classes?
I already figured out the configuration part, but I don't know what to do with the code part. Can we do the replacement policy from scratch then add sniper code lines to it or should I edit one of the available cache replacement codes? What other files should I edit in order to run our own implementation?
Can you help us please?

Thank you,
Alan

[Wim Heirman]

Hi Alan,

Replacement policies are implemented in the files common/core/memory_subsystem/cache/cache_set_*. It's easiest to start from a copy of cache_set_lru.cc and modify that to implement your own policy. Note that you also need a few small additions to cache_set.cc and cache_base.h (the ReplacementPolicy enum) to make your new policy known to Sniper.

Regards,

Wim

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[Alanoud Alsalman]

Thank you Wim,

One more thing please, is there a page or a document that explains the cache codes? i.e. a documentation?

best,
Alan

On Monday, March 20, 2017 at 2:55:21 AM UTC-6, Wim Heirman wrote:

Hi Alan,

Replacement policies are implemented in the files common/core/memory_subsystem/cache/cache_set_*. It's easiest to start from a copy of cache_set_lru.cc and modify that to implement your own policy. Note that you also need a few small additions to cache_set.cc and cache_base.h (the ReplacementPolicy enum) to make your new policy known to Sniper.

Regards,

Wim

On 19 March 2017 at 22:21, Alanoud Alsalman <alanoudi...@gmail.com> wrote:

Hi,

My team and I would like to implement an enhanced LRU cache replacement policy.
My question is: how do we do it based on sniper codes and classes?
I already figured out the configuration part, but I don't know what to do with the code part. Can we do the replacement policy from scratch then add sniper code lines to it or should I edit one of the available cache replacement codes? What other files should I edit in order to run our own implementation?
Can you help us please?

Thank you,
Alan

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[Alanoud Alsalman]

And can you tell me where is the main function in the cache replacement policies, please?

Thank you,

Alan

On Monday, March 20, 2017 at 2:55:21 AM UTC-6, Wim Heirman wrote:

Hi Alan,

Replacement policies are implemented in the files common/core/memory_subsystem/cache/cache_set_*. It's easiest to start from a copy of cache_set_lru.cc and modify that to implement your own policy. Note that you also need a few small additions to cache_set.cc and cache_base.h (the ReplacementPolicy enum) to make your new policy known to Sniper.

Regards,

Wim

On 19 March 2017 at 22:21, Alanoud Alsalman <alanoudi...@gmail.com> wrote:

Hi,

My team and I would like to implement an enhanced LRU cache replacement policy.
My question is: how do we do it based on sniper codes and classes?
I already figured out the configuration part, but I don't know what to do with the code part. Can we do the replacement policy from scratch then add sniper code lines to it or should I edit one of the available cache replacement codes? What other files should I edit in order to run our own implementation?
Can you help us please?

Thank you,
Alan

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[Nora almayouf]

This is really helpful.

 kindly I want know how to capture the read and write that is done in each cache line, for I want to change the LRU algorithm based on the W/R.

Thank you 

Nora

On Monday, March 20, 2017 at 2:55:21 AM UTC-6, Wim Heirman wrote:

Hi Alan,

Replacement policies are implemented in the files common/core/memory_subsystem/cache/cache_set_*. It's easiest to start from a copy of cache_set_lru.cc and modify that to implement your own policy. Note that you also need a few small additions to cache_set.cc and cache_base.h (the ReplacementPolicy enum) to make your new policy known to Sniper.

Regards,

Wim

On 19 March 2017 at 22:21, Alanoud Alsalman <alanoudi...@gmail.com> wrote:

Hi,

My team and I would like to implement an enhanced LRU cache replacement policy.
My question is: how do we do it based on sniper codes and classes?
I already figured out the configuration part, but I don't know what to do with the code part. Can we do the replacement policy from scratch then add sniper code lines to it or should I edit one of the available cache replacement codes? What other files should I edit in order to run our own implementation?
Can you help us please?

Thank you,
Alan

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