How does Linux 4.x manage page table caches?












0















I was reading this article
[https://www.kernel.org/doc/gorman/html/understand/understand006.html#sec:%20Bootstrapping][1]



and it said:




the pages used for the page tables are cached in a number of different lists called quicklists (...) Broadly speaking, the three implement caching with the use of three caches called pgd_quicklist, pmd_quicklist and pte_quicklist




However, the documentation is quite old, and I couldn't find those quicklists in the latest Linux (tip/tip.git) source tree.



I am pretty sure that page table pages be cached, but I cannot find the exact implementation.



Where can I find file that manages page table page caches?



Thanks!






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    0















    I was reading this article
    [https://www.kernel.org/doc/gorman/html/understand/understand006.html#sec:%20Bootstrapping][1]



    and it said:




    the pages used for the page tables are cached in a number of different lists called quicklists (...) Broadly speaking, the three implement caching with the use of three caches called pgd_quicklist, pmd_quicklist and pte_quicklist




    However, the documentation is quite old, and I couldn't find those quicklists in the latest Linux (tip/tip.git) source tree.



    I am pretty sure that page table pages be cached, but I cannot find the exact implementation.



    Where can I find file that manages page table page caches?



    Thanks!






    linux






    share







    New contributor




    Seonghyun Park is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.























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      0








      I was reading this article
      [https://www.kernel.org/doc/gorman/html/understand/understand006.html#sec:%20Bootstrapping][1]



      and it said:




      the pages used for the page tables are cached in a number of different lists called quicklists (...) Broadly speaking, the three implement caching with the use of three caches called pgd_quicklist, pmd_quicklist and pte_quicklist




      However, the documentation is quite old, and I couldn't find those quicklists in the latest Linux (tip/tip.git) source tree.



      I am pretty sure that page table pages be cached, but I cannot find the exact implementation.



      Where can I find file that manages page table page caches?



      Thanks!






      linux






      share







      New contributor




      Seonghyun Park is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I was reading this article
      [https://www.kernel.org/doc/gorman/html/understand/understand006.html#sec:%20Bootstrapping][1]



      and it said:




      the pages used for the page tables are cached in a number of different lists called quicklists (...) Broadly speaking, the three implement caching with the use of three caches called pgd_quicklist, pmd_quicklist and pte_quicklist




      However, the documentation is quite old, and I couldn't find those quicklists in the latest Linux (tip/tip.git) source tree.



      I am pretty sure that page table pages be cached, but I cannot find the exact implementation.



      Where can I find file that manages page table page caches?



      Thanks!






      linux




      linux





      share







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      Seonghyun Park is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










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      Seonghyun Park is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share






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      Seonghyun ParkSeonghyun Park

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      Seonghyun Park is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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