Solved

Thread cache: explanation needed

Posted on 2013-12-17
5
379 Views
Last Modified: 2013-12-22
Ah hello.

Can someone please provide an explanation of/give references to recommended books I can read:

1) What exactly a thread-cache is, and how it differs from a processor cache
2) How we can have "cache misses"
3) This SO answer, specifically the last paragraph about how "locks typically reduce contention".

I have tried googling for this but cannot find anything.

(Hopefully I have chosen the best zones for this, had a bit of a hard time deciding:))

TIA
0
Comment
Question by:mrwad99
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 86

Accepted Solution

by:
jkr earned 500 total points
ID: 39725322
"thread cache" could actually refer to two things, one solution described here http://publib.boulder.ibm.com/infocenter/aix/v6r1/index.jsp?topic=%2Fcom.ibm.aix.genprogc%2Fdoc%2Fgenprogc%2Fmalloc_threadcache.htm for OS-specific implementations:

The Malloc Thread Cache maintains a per-thread pool of unallocated memory for the purpose of reducing contention for the global heap structures.

This cache attempts to preallocate memory pieces for future use according to the pattern of allocations already performed by the thread. If an allocation request can be serviced using one of the unallocated pieces in the Thread Cache, it is removed from the cache and returned to the caller. If an allocation request cannot be serviced using an unallocated piece in the cache, the request is passed on to the global heap structure.

and the other discussed in the paper at http://www.hpcaconf.org/hpca11/papers/32_chandra-predictinginter-thread.pdf ("Predicting Inter-Thread Cache Contention on a Chip Multi-Processor Architecture", consider this one "suggested reading" ;o)
0
 
LVL 19

Author Comment

by:mrwad99
ID: 39733841
Disappointingly few responses on this one!

Thanks for participating.
0
 
LVL 19

Author Comment

by:mrwad99
ID: 39733846
Oh, I almost forgot; do you have any comment on the SO question query I linked to?
0
 
LVL 86

Expert Comment

by:jkr
ID: 39734295
I wished I could, but as for new EE policy, SO does not exist. But I guess it is safe to say that while there are some truisms in it, it's on point ;o)
0
 
LVL 19

Author Comment

by:mrwad99
ID: 39734616
>> new EE policy

Have I missed that?  Could you provide a link with this on at all?
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
How to convert MFC::CString to UTF8 wchar_t* 10 387
I could not build boost code, 10 107
unix example issues 18 106
Documenting and diagramming code flow within a VBA Excel project 5 53
Before You Read The Article Please make sure you understand these two concepts: Variable Scope (http://www.php.net/manual/en/language.variables.scope.php) and Property Visibility (http://www.php.net/manual/en/language.oop5.visibility.php).  And to …
Introduction Many of the most common information processing tasks require sorting data sets.  For example, you may want to find the largest or smallest value in a collection.  Or you may want to order the data set in numeric or alphabetical order. …
The viewer will learn additional member functions of the vector class. Specifically, the capacity and swap member functions will be introduced.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.

730 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question