€•*[Œsphinx.addnodes”Œdocument”“”)”}”(Œ rawsource”Œ”Œchildren”]”(Œ translations”Œ LanguagesNode”“”)”}”(hhh]”(hŒ pending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ refdomain”Œstd”Œreftype”Œdoc”Œ reftarget”Œ5/translations/zh_CN/admin-guide/mm/idle_page_tracking”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ5/translations/zh_TW/admin-guide/mm/idle_page_tracking”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ5/translations/it_IT/admin-guide/mm/idle_page_tracking”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ5/translations/ja_JP/admin-guide/mm/idle_page_tracking”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ5/translations/ko_KR/admin-guide/mm/idle_page_tracking”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ5/translations/sp_SP/admin-guide/mm/idle_page_tracking”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒIdle Page Tracking”h]”hŒIdle Page Tracking”…””}”(hh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒO/var/lib/git/docbuild/linux/Documentation/admin-guide/mm/idle_page_tracking.rst”h Kubh¢)”}”(hhh]”(h§)”}”(hŒ Motivation”h]”hŒ Motivation”…””}”(hhºhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh·hžhhŸh¶h KubhŒ paragraph”“”)”}”(hXyThe idle page tracking feature allows to track which memory pages are being accessed by a workload and which are idle. This information can be useful for estimating the workload's working set size, which, in turn, can be taken into account when configuring the workload parameters, setting memory cgroup limits, or deciding where to place the workload within a compute cluster.”h]”hX{The idle page tracking feature allows to track which memory pages are being accessed by a workload and which are idle. This information can be useful for estimating the workload’s working set size, which, in turn, can be taken into account when configuring the workload parameters, setting memory cgroup limits, or deciding where to place the workload within a compute cluster.”…””}”(hhÊhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khh·hžhubhÉ)”}”(hŒ-It is enabled by CONFIG_IDLE_PAGE_TRACKING=y.”h]”hŒ-It is enabled by CONFIG_IDLE_PAGE_TRACKING=y.”…””}”(hhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khh·hžhubhŒtarget”“”)”}”(hŒ .. _user_api:”h]”h}”(h]”h ]”h"]”h$]”h&]”Œrefid”Œuser-api”uh1hæh Khh·hžhhŸh¶ubeh}”(h]”Œ motivation”ah ]”h"]”Œ motivation”ah$]”h&]”uh1h¡hh£hžhhŸh¶h Kubh¢)”}”(hhh]”(h§)”}”(hŒUser API”h]”hŒUser API”…””}”(hhÿhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hhühžhhŸh¶h KubhÉ)”}”(hŒŸThe idle page tracking API is located at ``/sys/kernel/mm/page_idle``. Currently, it consists of the only read-write file, ``/sys/kernel/mm/page_idle/bitmap``.”h]”(hŒ)The idle page tracking API is located at ”…””}”(hj hžhhŸNh NubhŒliteral”“”)”}”(hŒ``/sys/kernel/mm/page_idle``”h]”hŒ/sys/kernel/mm/page_idle”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj ubhŒ6. Currently, it consists of the only read-write file, ”…””}”(hj hžhhŸNh Nubj)”}”(hŒ#``/sys/kernel/mm/page_idle/bitmap``”h]”hŒ/sys/kernel/mm/page_idle/bitmap”…””}”(hj)hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj ubhŒ.”…””}”(hj hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KhhühžhubhÉ)”}”(hXThe file implements a bitmap where each bit corresponds to a memory page. The bitmap is represented by an array of 8-byte integers, and the page at PFN #i is mapped to bit #i%64 of array element #i/64, byte order is native. When a bit is set, the corresponding page is idle.”h]”hXThe file implements a bitmap where each bit corresponds to a memory page. The bitmap is represented by an array of 8-byte integers, and the page at PFN #i is mapped to bit #i%64 of array element #i/64, byte order is native. When a bit is set, the corresponding page is idle.”…””}”(hjAhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KhhühžhubhÉ)”}”(hXbA page is considered idle if it has not been accessed since it was marked idle (for more details on what "accessed" actually means see the :ref:`Implementation Details ` section). To mark a page idle one has to set the bit corresponding to the page by writing to the file. A value written to the file is OR-ed with the current bitmap value.”h]”(hŒA page is considered idle if it has not been accessed since it was marked idle (for more details on what “accessed†actually means see the ”…””}”(hjOhžhhŸNh Nubh)”}”(hŒ,:ref:`Implementation Details `”h]”hŒinline”“”)”}”(hjYh]”hŒImplementation Details”…””}”(hj]hžhhŸNh Nubah}”(h]”h ]”(Œxref”Œstd”Œstd-ref”eh"]”h$]”h&]”uh1j[hjWubah}”(h]”h ]”h"]”h$]”h&]”Œrefdoc”Œ!admin-guide/mm/idle_page_tracking”Œ refdomain”jhŒreftype”Œref”Œ refexplicit”ˆŒrefwarn”ˆŒ reftarget”Œ impl_details”uh1hhŸh¶h KhjOubhŒ« section). To mark a page idle one has to set the bit corresponding to the page by writing to the file. A value written to the file is OR-ed with the current bitmap value.”…””}”(hjOhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KhhühžhubhÉ)”}”(hXOnly accesses to user memory pages are tracked. These are pages mapped to a process address space, page cache and buffer pages, swap cache pages. For other page types (e.g. SLAB pages) an attempt to mark a page idle is silently ignored, and hence such pages are never reported idle.”h]”hXOnly accesses to user memory pages are tracked. These are pages mapped to a process address space, page cache and buffer pages, swap cache pages. For other page types (e.g. SLAB pages) an attempt to mark a page idle is silently ignored, and hence such pages are never reported idle.”…””}”(hj†hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K%hhühžhubhÉ)”}”(hŒFor huge pages the idle flag is set only on the head page, so one has to read ``/proc/kpageflags`` in order to correctly count idle huge pages.”h]”(hŒNFor huge pages the idle flag is set only on the head page, so one has to read ”…””}”(hj”hžhhŸNh Nubj)”}”(hŒ``/proc/kpageflags``”h]”hŒ/proc/kpageflags”…””}”(hjœhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj”ubhŒ- in order to correctly count idle huge pages.”…””}”(hj”hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K*hhühžhubhÉ)”}”(hXReading from or writing to ``/sys/kernel/mm/page_idle/bitmap`` will return -EINVAL if you are not starting the read/write on an 8-byte boundary, or if the size of the read/write is not a multiple of 8 bytes. Writing to this file beyond max PFN will return -ENXIO.”h]”(hŒReading from or writing to ”…””}”(hj´hžhhŸNh Nubj)”}”(hŒ#``/sys/kernel/mm/page_idle/bitmap``”h]”hŒ/sys/kernel/mm/page_idle/bitmap”…””}”(hj¼hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj´ubhŒÉ will return -EINVAL if you are not starting the read/write on an 8-byte boundary, or if the size of the read/write is not a multiple of 8 bytes. Writing to this file beyond max PFN will return -ENXIO.”…””}”(hj´hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K-hhühžhubhÉ)”}”(hŒ_That said, in order to estimate the amount of pages that are not used by a workload one should:”h]”hŒ_That said, in order to estimate the amount of pages that are not used by a workload one should:”…””}”(hjÔhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K2hhühžhubhŒ block_quote”“”)”}”(hXy1. Mark all the workload's pages as idle by setting corresponding bits in ``/sys/kernel/mm/page_idle/bitmap``. The pages can be found by reading ``/proc/pid/pagemap`` if the workload is represented by a process, or by filtering out alien pages using ``/proc/kpagecgroup`` in case the workload is placed in a memory cgroup. 2. Wait until the workload accesses its working set. 3. Read ``/sys/kernel/mm/page_idle/bitmap`` and count the number of bits set. If one wants to ignore certain types of pages, e.g. mlocked pages since they are not reclaimable, he or she can filter them out using ``/proc/kpageflags``. ”h]”hŒenumerated_list”“”)”}”(hhh]”(hŒ list_item”“”)”}”(hX@Mark all the workload's pages as idle by setting corresponding bits in ``/sys/kernel/mm/page_idle/bitmap``. The pages can be found by reading ``/proc/pid/pagemap`` if the workload is represented by a process, or by filtering out alien pages using ``/proc/kpagecgroup`` in case the workload is placed in a memory cgroup. ”h]”hÉ)”}”(hX?Mark all the workload's pages as idle by setting corresponding bits in ``/sys/kernel/mm/page_idle/bitmap``. The pages can be found by reading ``/proc/pid/pagemap`` if the workload is represented by a process, or by filtering out alien pages using ``/proc/kpagecgroup`` in case the workload is placed in a memory cgroup.”h]”(hŒIMark all the workload’s pages as idle by setting corresponding bits in ”…””}”(hjóhžhhŸNh Nubj)”}”(hŒ#``/sys/kernel/mm/page_idle/bitmap``”h]”hŒ/sys/kernel/mm/page_idle/bitmap”…””}”(hjûhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhjóubhŒ$. The pages can be found by reading ”…””}”(hjóhžhhŸNh Nubj)”}”(hŒ``/proc/pid/pagemap``”h]”hŒ/proc/pid/pagemap”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhjóubhŒT if the workload is represented by a process, or by filtering out alien pages using ”…””}”(hjóhžhhŸNh Nubj)”}”(hŒ``/proc/kpagecgroup``”h]”hŒ/proc/kpagecgroup”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhjóubhŒ3 in case the workload is placed in a memory cgroup.”…””}”(hjóhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K5hjïubah}”(h]”h ]”h"]”h$]”h&]”uh1jíhjêubjî)”}”(hŒ2Wait until the workload accesses its working set. ”h]”hÉ)”}”(hŒ1Wait until the workload accesses its working set.”h]”hŒ1Wait until the workload accesses its working set.”…””}”(hjAhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K;hj=ubah}”(h]”h ]”h"]”h$]”h&]”uh1jíhjêubjî)”}”(hŒçRead ``/sys/kernel/mm/page_idle/bitmap`` and count the number of bits set. If one wants to ignore certain types of pages, e.g. mlocked pages since they are not reclaimable, he or she can filter them out using ``/proc/kpageflags``. ”h]”hÉ)”}”(hŒæRead ``/sys/kernel/mm/page_idle/bitmap`` and count the number of bits set. If one wants to ignore certain types of pages, e.g. mlocked pages since they are not reclaimable, he or she can filter them out using ``/proc/kpageflags``.”h]”(hŒRead ”…””}”(hjYhžhhŸNh Nubj)”}”(hŒ#``/sys/kernel/mm/page_idle/bitmap``”h]”hŒ/sys/kernel/mm/page_idle/bitmap”…””}”(hjahžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhjYubhŒ© and count the number of bits set. If one wants to ignore certain types of pages, e.g. mlocked pages since they are not reclaimable, he or she can filter them out using ”…””}”(hjYhžhhŸNh Nubj)”}”(hŒ``/proc/kpageflags``”h]”hŒ/proc/kpageflags”…””}”(hjshžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhjYubhŒ.”…””}”(hjYhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h K=hjUubah}”(h]”h ]”h"]”h$]”h&]”uh1jíhjêubeh}”(h]”h ]”h"]”h$]”h&]”Œenumtype”Œarabic”Œprefix”hŒsuffix”Œ.”uh1jèhjäubah}”(h]”h ]”h"]”h$]”h&]”uh1jâhŸh¶h K5hhühžhubhÉ)”}”(hXThe page-types tool in the tools/mm directory can be used to assist in this. If the tool is run initially with the appropriate option, it will mark all the queried pages as idle. Subsequent runs of the tool can then show which pages have their idle flag cleared in the interim.”h]”hXThe page-types tool in the tools/mm directory can be used to assist in this. If the tool is run initially with the appropriate option, it will mark all the queried pages as idle. Subsequent runs of the tool can then show which pages have their idle flag cleared in the interim.”…””}”(hj¢hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KBhhühžhubhÉ)”}”(hŒSee Documentation/admin-guide/mm/pagemap.rst for more information about ``/proc/pid/pagemap``, ``/proc/kpageflags``, and ``/proc/kpagecgroup``.”h]”(hŒHSee Documentation/admin-guide/mm/pagemap.rst for more information about ”…””}”(hj°hžhhŸNh Nubj)”}”(hŒ``/proc/pid/pagemap``”h]”hŒ/proc/pid/pagemap”…””}”(hj¸hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj°ubhŒ, ”…””}”(hj°hžhhŸNh Nubj)”}”(hŒ``/proc/kpageflags``”h]”hŒ/proc/kpageflags”…””}”(hjÊhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj°ubhŒ, and ”…””}”(hj°hžhhŸNh Nubj)”}”(hŒ``/proc/kpagecgroup``”h]”hŒ/proc/kpagecgroup”…””}”(hjÜhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj°ubhŒ.”…””}”(hj°hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KGhhühžhubhç)”}”(hŒ.. _impl_details:”h]”h}”(h]”h ]”h"]”h$]”h&]”hòŒ impl-details”uh1hæh KJhhühžhhŸh¶ubeh}”(h]”(hóŒid1”eh ]”h"]”(Œuser api”Œuser_api”eh$]”h&]”uh1h¡hh£hžhhŸh¶h KŒexpect_referenced_by_name”}”jhèsŒexpect_referenced_by_id”}”hóhèsubh¢)”}”(hhh]”(h§)”}”(hŒImplementation Details”h]”hŒImplementation Details”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hj hžhhŸh¶h KMubhÉ)”}”(hXœThe kernel internally keeps track of accesses to user memory pages in order to reclaim unreferenced pages first on memory shortage conditions. A page is considered referenced if it has been recently accessed via a process address space, in which case one or more PTEs it is mapped to will have the Accessed bit set, or marked accessed explicitly by the kernel (see mark_page_accessed()). The latter happens when:”h]”hXœThe kernel internally keeps track of accesses to user memory pages in order to reclaim unreferenced pages first on memory shortage conditions. A page is considered referenced if it has been recently accessed via a process address space, in which case one or more PTEs it is mapped to will have the Accessed bit set, or marked accessed explicitly by the kernel (see mark_page_accessed()). The latter happens when:”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KOhj hžhubjã)”}”(hXC- a userspace process reads or writes a page using a system call (e.g. read(2) or write(2)) - a page that is used for storing filesystem buffers is read or written, because a process needs filesystem metadata stored in it (e.g. lists a directory tree) - a page is accessed by a device driver using get_user_pages() ”h]”hŒ bullet_list”“”)”}”(hhh]”(jî)”}”(hŒZa userspace process reads or writes a page using a system call (e.g. read(2) or write(2)) ”h]”hÉ)”}”(hŒYa userspace process reads or writes a page using a system call (e.g. read(2) or write(2))”h]”hŒYa userspace process reads or writes a page using a system call (e.g. read(2) or write(2))”…””}”(hj8hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KVhj4ubah}”(h]”h ]”h"]”h$]”h&]”uh1jíhj1ubjî)”}”(hŒža page that is used for storing filesystem buffers is read or written, because a process needs filesystem metadata stored in it (e.g. lists a directory tree) ”h]”hÉ)”}”(hŒa page that is used for storing filesystem buffers is read or written, because a process needs filesystem metadata stored in it (e.g. lists a directory tree)”h]”hŒa page that is used for storing filesystem buffers is read or written, because a process needs filesystem metadata stored in it (e.g. lists a directory tree)”…””}”(hjPhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h KYhjLubah}”(h]”h ]”h"]”h$]”h&]”uh1jíhj1ubjî)”}”(hŒ=a page is accessed by a device driver using get_user_pages() ”h]”hÉ)”}”(hŒ` section), and cleared automatically whenever a page is referenced as defined above.”h]”(hŒoThe idle memory tracking feature adds a new page flag, the Idle flag. This flag is set manually, by writing to ”…””}”(hj˜hžhhŸNh Nubj)”}”(hŒ#``/sys/kernel/mm/page_idle/bitmap``”h]”hŒ/sys/kernel/mm/page_idle/bitmap”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jhj˜ubhŒ (see the ”…””}”(hj˜hžhhŸNh Nubh)”}”(hŒ:ref:`User API `”h]”j\)”}”(hj´h]”hŒUser API”…””}”(hj¶hžhhŸNh Nubah}”(h]”h ]”(jgŒstd”Œstd-ref”eh"]”h$]”h&]”uh1j[hj²ubah}”(h]”h ]”h"]”h$]”h&]”Œrefdoc”jtŒ refdomain”jÀŒreftype”Œref”Œ refexplicit”ˆŒrefwarn”ˆjzŒuser_api”uh1hhŸh¶h Kbhj˜ubhŒT section), and cleared automatically whenever a page is referenced as defined above.”…””}”(hj˜hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Kbhj hžhubhÉ)”}”(hXaWhen a page is marked idle, the Accessed bit must be cleared in all PTEs it is mapped to, otherwise we will not be able to detect accesses to the page coming from a process address space. To avoid interference with the reclaimer, which, as noted above, uses the Accessed bit to promote actively referenced pages, one more page flag is introduced, the Young flag. When the PTE Accessed bit is cleared as a result of setting or updating a page's Idle flag, the Young flag is set on the page. The reclaimer treats the Young flag as an extra PTE Accessed bit and therefore will consider such a page as referenced.”h]”hXcWhen a page is marked idle, the Accessed bit must be cleared in all PTEs it is mapped to, otherwise we will not be able to detect accesses to the page coming from a process address space. To avoid interference with the reclaimer, which, as noted above, uses the Accessed bit to promote actively referenced pages, one more page flag is introduced, the Young flag. When the PTE Accessed bit is cleared as a result of setting or updating a page’s Idle flag, the Young flag is set on the page. The reclaimer treats the Young flag as an extra PTE Accessed bit and therefore will consider such a page as referenced.”…””}”(hjÜhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Khhj hžhubhÉ)”}”(hXSince the idle memory tracking feature is based on the memory reclaimer logic, it only works with pages that are on an LRU list, other pages are silently ignored. That means it will ignore a user memory page if it is isolated, but since there are usually not many of them, it should not affect the overall result noticeably. In order not to stall scanning of the idle page bitmap, locked pages may be skipped too.”h]”hXSince the idle memory tracking feature is based on the memory reclaimer logic, it only works with pages that are on an LRU list, other pages are silently ignored. That means it will ignore a user memory page if it is isolated, but since there are usually not many of them, it should not affect the overall result noticeably. In order not to stall scanning of the idle page bitmap, locked pages may be skipped too.”…””}”(hjêhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhŸh¶h Kqhj hžhubeh}”(h]”(Œimplementation-details”jþeh ]”h"]”(Œimplementation details”Œ impl_details”eh$]”h&]”uh1h¡hh£hžhhŸh¶h KMj}”jþjôsj }”jþjôsubeh}”(h]”Œidle-page-tracking”ah ]”h"]”Œidle page tracking”ah$]”h&]”uh1h¡hhhžhhŸh¶h Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”h¶uh1hŒcurrent_source”NŒ current_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(h¦NŒ generator”NŒ datestamp”NŒ source_link”NŒ source_url”NŒ toc_backlinks”Œentry”Œfootnote_backlinks”KŒ sectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒ strip_classes”NŒ report_level”KŒ halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ traceback”ˆŒinput_encoding”Œ utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”j.Œerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œ language_code”Œen”Œrecord_dependencies”NŒconfig”NŒ id_prefix”hŒauto_id_prefix”Œid”Œ dump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”h¶Œ _destination”NŒ _config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒ raw_enabled”KŒline_length_limit”M'Œpep_references”NŒ pep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒ rfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œ smart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œ docinfo_xform”KŒsectsubtitle_xform”‰Œ image_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”(hó]”hèajþ]”jôauŒnameids”}”(jjhùhöjhójjjþjþjýjúuŒ nametypes”}”(j‰hù‰jˆj‰jþˆjý‰uh}”(jh£höh·hóhüjhüjþj júj uŒ footnote_refs”}”Œ citation_refs”}”Œ autofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ footnotes”]”Œ citations”]”Œautofootnote_start”KŒsymbol_footnote_start”KŒ id_counter”Œ collections”ŒCounter”“”}”j<Ks…”R”Œparse_messages”]”Œtransform_messages”]”(hŒsystem_message”“”)”}”(hhh]”hÉ)”}”(hhh]”hŒ.Hyperlink target "user-api" is not referenced.”…””}”hj™sbah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhj–ubah}”(h]”h ]”h"]”h$]”h&]”Œlevel”KŒtype”ŒINFO”Œsource”h¶Œline”Kuh1j”ubj•)”}”(hhh]”hÉ)”}”(hhh]”hŒ2Hyperlink target "impl-details" is not referenced.”…””}”hj´sbah}”(h]”h ]”h"]”h$]”h&]”uh1hÈhj±ubah}”(h]”h ]”h"]”h$]”h&]”Œlevel”KŒtype”j®Œsource”h¶Œline”KJuh1j”ubeŒ transformer”NŒ include_log”]”Œ decoration”Nhžhub.