Concurrency Kit

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Concurrency Kit provides a plethora of concurrency primitives, safe memory reclamation mechanisms and lock-less and lock-free data structures designed to aid in the design and implementation of high performance concurrent systems. It is designed to minimize dependencies on operating system-specific interfaces and most of the interface relies only on a strict subset of the standard library and more popular compiler extensions.

Please see http://concurrencykit.org/ for more information.

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recepient recepient

8/12/22

Examples of app code using epoch mechanism?

I'm very much interested in assessing the performance, and usability of EBR in this tool kit for

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Examples of app code using epoch mechanism?

I'm very much interested in assessing the performance, and usability of EBR in this tool kit for

8/12/22

Patrick Julien, Samy Al Bahra5

6/29/20

Responses inline. Patrick and I caught up offline, clarifications for folks following along below. On

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Responses inline. Patrick and I caught up offline, clarifications for folks following along below. On

6/29/20

Maisheri, Samy Al Bahra2

3/2/20

CK in userspace

CK is used quite a bit in user-space and no special precautions are needed for it. Examples of open-

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CK in userspace

CK is used quite a bit in user-space and no special precautions are needed for it. Examples of open-

3/2/20

Aleksey Demakov2

5/17/19

a centralized fair reader-writer spin lock

Hi all, Working code and a simple test can be found here: https://github.com/ademakov/Evenk/blob/

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a centralized fair reader-writer spin lock

Hi all, Working code and a simple test can be found here: https://github.com/ademakov/Evenk/blob/

5/17/19

Aaditya Kalsi, … Patrick Löffler3

9/5/17

Support for MSVC

Hi Samy, I am new to CK and also interested in MSVC compatibility. It seems like VS15 mostly

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Support for MSVC

Hi Samy, I am new to CK and also interested in MSVC compatibility. It seems like VS15 mostly

9/5/17

Michael Grunder

8/19/17

Best practices for determining when we're finished processing fifo entries.

Hi, First off, Concurrency Kit is fantastic. I was able to get up and running with it quickly and so

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Best practices for determining when we're finished processing fifo entries.

Hi, First off, Concurrency Kit is fantastic. I was able to get up and running with it quickly and so

8/19/17

Nookala Poornima, Samy Al Bahra3

5/2/17

ck_ring_dequeue_mpmc fails with concurrent producers and consumers

Hi Nookala Did my response help? On Sat, Apr 29, 2017, 11:28 PM Nookala Poornima <nookala.poornima

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ck_ring_dequeue_mpmc fails with concurrent producers and consumers

Hi Nookala Did my response help? On Sat, Apr 29, 2017, 11:28 PM Nookala Poornima <nookala.poornima

5/2/17

Samy Al Bahra, Richard Dawe4

2/28/17

Release: Concurrency Kit 0.6.0

I can see 0.6.0 on the concurrency kit.org home page now. Sorry for the noise. Thanks, best regards,

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Release: Concurrency Kit 0.6.0

I can see 0.6.0 on the concurrency kit.org home page now. Sorry for the noise. Thanks, best regards,

2/28/17

2/27/17

Ignorant question - difference between ck_rhs and ck_hs

This is probably a somewhat silly question but, outside of the implementation what is the differences

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Ignorant question - difference between ck_rhs and ck_hs

This is probably a somewhat silly question but, outside of the implementation what is the differences

2/27/17

Robert Fleischman

2/24/17

Lifetime of keys

Simple question about key lifetime. I do a: ck_ht_set_spmc() with new data. It returns the old data

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Lifetime of keys

Simple question about key lifetime. I do a: ck_ht_set_spmc() with new data. It returns the old data

2/24/17

Samy Al Bahra, … Doug Moore16

1/14/17

C++ support coming

The pull request has been rejected, and concurrencykit/ck won't support C++, ever. You can find

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C++ support coming

The pull request has been rejected, and concurrencykit/ck won't support C++, ever. You can find

1/14/17

8/28/16

Concurrency Kit 0.5.2 released

Concurrency Kit 0.5.2 has been released. This release contains performance improvements and a bug fix

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Concurrency Kit 0.5.2 released

Concurrency Kit 0.5.2 has been released. This release contains performance improvements and a bug fix

8/28/16

Darryl Rodden, Samy Al Bahra2

7/25/16

ck_ring_enqueue_mpsc behavior

Hi Darryl, Thanks for letting us know. This was fixed in master recently and will be included in

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ck_ring_enqueue_mpsc behavior

Hi Darryl, Thanks for letting us know. This was fixed in master recently and will be included in

7/25/16

Darryl Rodden, Samy Al Bahra2

7/21/16

Hi Darryl, It's there in master. Note that producers are serialized in the current implementation

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Hi Darryl, It's there in master. Note that producers are serialized in the current implementation

7/21/16

Andrey Ponomarenko, sbahra2

6/3/16

Hi Andrey, This is super cool, thanks! On Wednesday, February 24, 2016 at 8:08:20 AM UTC-5, Andrey

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Hi Andrey, This is super cool, thanks! On Wednesday, February 24, 2016 at 8:08:20 AM UTC-5, Andrey

6/3/16

Ian A. Mason, Samy Al Bahra3

4/4/16

Thanks Samy! On Monday, April 4, 2016 at 6:31:35 PM UTC-7, sbahra wrote: Hi Ian, The extra arguments

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Thanks Samy! On Monday, April 4, 2016 at 6:31:35 PM UTC-7, sbahra wrote: Hi Ian, The extra arguments

4/4/16

Fedor Sakharov, Samy Al Bahra2

1/17/16

ck_ht multiple readers

Hi Fedor That is up to you and your requirements. CK has a bunch of spin locks or if you wanted

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ck_ht multiple readers

Hi Fedor That is up to you and your requirements. CK has a bunch of spin locks or if you wanted

1/17/16

Sameer Kumar, sbahra2

12/30/15

re-initialize after doing ck-ring-init

Hi, This behavior is not supported at the moment. You can try increasing the initialize size until it

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re-initialize after doing ck-ring-init

Hi, This behavior is not supported at the moment. You can try increasing the initialize size until it

12/30/15

12/30/15

Manual page fixes

The manual pages have been updated on the website. Due to limitations in man2html, I have migrated

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Manual page fixes

The manual pages have been updated on the website. Due to limitations in man2html, I have migrated

12/30/15

12/30/15

Concurrency Kit 0.5.1 has been released. This release includes critical bug fixes to ck_epoch. It is

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Concurrency Kit 0.5.1 has been released. This release includes critical bug fixes to ck_epoch. It is

12/30/15

11/1/15

New release: 0.5.0

Correction re:ck_ht: This issue did not affect compaction. It affected concurrent load with

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New release: 0.5.0

Correction re:ck_ht: This issue did not affect compaction. It affected concurrent load with

11/1/15

Aval Sarri, … Samy Al Bahra10

9/12/15

ck_ring : consumer slower, throughly confused: kindly guide

Besides correctness issues here, granularity of gettimeofday is unclear nor is cost relative to the

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ck_ring : consumer slower, throughly confused: kindly guide

Besides correctness issues here, granularity of gettimeofday is unclear nor is cost relative to the

9/12/15

8/28/15

Re: ck_ring bug?

Hi Alex Make sure it is power of 2 size. On Fri, Aug 28, 2015, 2:44 PM Alex Forster <alex@

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Re: ck_ring bug?

Hi Alex Make sure it is power of 2 size. On Fri, Aug 28, 2015, 2:44 PM Alex Forster <alex@

8/28/15

Brian Nichols, … Samy Al Bahra4

8/24/15

Support for shared memory

Our shared memory data consists of fixed size data structures with offsets. Having a process-safe

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Support for shared memory

Our shared memory data consists of fixed size data structures with offsets. Having a process-safe

8/24/15

Michael Haberler, Samy Al Bahra3

8/8/15

machinekit.io to use concurrencykit

On Sat, Aug 8, 2015 at 2:20 PM, Samy Al Bahra <sba...@repnop.org> wrote: > Hi all, > >

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machinekit.io to use concurrencykit

On Sat, Aug 8, 2015 at 2:20 PM, Samy Al Bahra <sba...@repnop.org> wrote: > Hi all, > >

8/8/15

Michael Haberler

7/29/15

regression test for relaxed memory order/missing barrier?

hi, I'd appreciate hints for a regression test which can reliably trigger on missing barriers, in

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regression test for relaxed memory order/missing barrier?

hi, I'd appreciate hints for a regression test which can reliably trigger on missing barriers, in

7/29/15

satish varagani, Paul Khuong3

5/6/15

concurrent reads -- thread safe

On Wed, May 6, 2015 at 3:28 AM, satish varagani <satish....@gmail.com> wrote: > whether

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concurrent reads -- thread safe

On Wed, May 6, 2015 at 3:28 AM, satish varagani <satish....@gmail.com> wrote: > whether

5/6/15

satish varagani

4/6/15

concurrency kit - ck_ht usage

Hi I have seen some examples in regressions/ck_ht , I would like to know the difference between

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concurrency kit - ck_ht usage

Hi I have seen some examples in regressions/ck_ht , I would like to know the difference between

4/6/15

3/13/15

Concurrency mechanism in ck_hs/ck_rhs/ck_ht

Hi all, This is now documented at http://backtrace.io/blog/blog/2015/03/13/workload-specialization/

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Concurrency mechanism in ck_hs/ck_rhs/ck_ht

Hi all, This is now documented at http://backtrace.io/blog/blog/2015/03/13/workload-specialization/

3/13/15

Andrew J. Schorr, Samy Al Bahra10

2/28/15

-Wcast-qual warnings

Hi Andrew, Fixing the noise is fairly pervasive, requiring me to re-test. In some cases, the casts

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-Wcast-qual warnings

Hi Andrew, Fixing the noise is fairly pervasive, requiring me to re-test. In some cases, the casts

2/28/15

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