Tree: 74e7baa2f4

24-1-mkql-runtime

24.3.14.stream-nb-24-3.fullflash-exp1

add-upcoming-event-1

alexv-smirnov-patch-1

alexv-smirnov-patch-2

alexv-smirnov-patch-3

alexv-smirnov-patch-4

blinkov-patch-1

blinkov-patch-2

bs/vdisk/split-synclog-processing

cmake-actions-1

cmake2

cmake3

cmakebuild

dev-changelog-for-main-2025-02-20

dev-dirty_fix_clang14

dev-iddqd

dev-jinja-html

dev-jinja-html2

dev-night

dev-nightly

dev-remove_clang14_from_pr

dev-sammy-optimization

dev-stable-24-3

dev-stable-25-1

dev-test-policy

dev-test-wf

dev-upload-tests

dev-warmup

dev-wf-run

dev-whole-analytics

dev-whole-analytics-sammy

dev/spilling_1

dev/yurchuk-stable-24-4

dev/yurchuk/_LIBCPP_HARDENING_MODE_DEBUG

dev_dirty_fix_clang14

docker-connect-doc-up

docs-14381-fix-mistype

docs-24-2-dont-change-revision

docs-3-nodes-mirror-3-dc

docs-371-tmp

docs-633-review-follow-up

docs-add-coscup

docs-add-database-node-synonym

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docs-add_translation_for_terraform_ydb_doc

docs-ansible-add-extra-note

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docs-ansible-installation-options

docs-ansible-mistype-restart

docs-ansible-ydb-archive

docs-bugfix

docs-build-fixes

docs-change-storage-bucket

docs-changelog-cli-mistype

docs-clear-field

docs-cli-recipes

docs-cli-restore-import-data

docs-cli-win-change-url

docs-codowners-root-md

docs-columnar-pk

docs-concepts-cluster

docs-contents-snippet

docs-coordination

docs-create-table-ident

docs-dark-theme

docs-data-at-rest-improvement

docs-default-sql-version

docs-dev-getting-started-mistype

docs-diplodoc-workaround

docs-distconf

docs-distconf-migration

docs-distconf-stage-1-1

docs-distconf-tmp

docs-docker-old-version-note

docs-dont-link-to-archived-go-sdk

docs-drop-old-public-talks

docs-drop-old-public-talks-1

docs-drop-unused-files

docs-drop-wip

docs-edit-ru-ansible-articles

docs-edu-test

docs-enable-feature-codegen

docs-example-app-en-fixes

docs-fix-ansible-repo-name

docs-fix-column-table-redirect

docs-fix-concat-md

docs-fix-internal-build

docs-fix-internal-build-1

docs-fix-oauth2-link

docs-fix-pg-create-include

docs-fix-rendering

docs-fix-ru-text-in-en

docs-fix-test-commit-ui

docs-fq-postgresql-fix-link

docs-grafana-columnar

docs-gtm

docs-hotfix-config-examples

docs-hotfix-public-talks-redirect

docs-increase-disabled-nodes-ratio-limit

docs-indiafoss-2024

docs-insert-into-hotfix

docs-kikimr-20945-pin-configs

docs-kubecon-hongkong

docs-localhost-broken-link

docs-manual-deployment-refactoring

docs-md-fix-cast-examples

docs-more-internal-fixes

docs-mute

docs-old-docker

docs-pause-autodeploy

docs-pg-redirect-hotfix

docs-postgresql-docker-connect-minor-fix

docs-preview-in-pr

docs-quickstart-add-mkdir

docs-quickstart-apple-silicon-note

docs-quickstart-docker-arm

docs-recommended-node-count

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docs-refactoring-ydbdocs-633

docs-release-workflow-add-paths

docs-remove-setup-playbook-mention

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docs-ru-glossary-terminology-fixes

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docs-security-encryption

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docs-translate-connections-string

docs-translate-tracing

docs-translation-debts

docs-trigger-ci

docs-try-lunr

docs-unpause-deploy

docs-unrestrict-revision-access

docs-update-decimal-note

docs-update-diplodoc-actions

docs-update-favicon

docs-update-gitignore

docs-update-license-year

docs-update-query-limits

docs-update-readme

docs-update-redirects

docs-update-workflow-type

docs-use-ansible-collections-playbook

docs-version-builtin

docs-workflow-on-create

docs-workflow-stable-24-2

docs-workflow-stable-24-3

docs-ya-make-yql

docs-ydb-go-sdk-prometheus

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docs-ydbdocs-1020

docs-ydbdocs-119-glossary-revamp

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docs-ydbdocs-596

docs-ydbdocs-633-continue

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docs-ydbdocs-653-restore-minikube-quickstart

docs-ydbdocs-668-add-ansible-logging

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docs-ydbdocs-691-introduce-recipes-section

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docs-ydbdocs-696-fix-yql-build

docs-ydbdocs-760-analytics-faq

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docs-ydbdocs-909

docs-ydbdocs-917

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docs-ydbops-9957-updating-executables-ansible

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docs-yfmlint

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docstools-update-build-workflow

dstool/pypi

embedded-ui-refresh-v4.31.0

embedded-ui-refresh-v4.31.1

embedded-ui-v4.33.0

embedded-ui-v5.5.0

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embedded-ui-v6.8.0

embedded-ui-v7.2.0

embedded-ui-v8.6.0

embedded-ui-v8.7.0

feature/KIKIMR-20843/fix-reserve

feature/backups/pre-6

feature/integrations_and_ide

fix-header-ident-bloom

license-year-2023

main

mbkkt/fix-bug-kikimr-gateway

mbkkt/fix-prefixed-vector-index-verify

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mergelibs-241216-1701

mergelibs-241218-0753

mergelibs-241219-0815

mergelibs-241225-1031

mergelibs-yql

mergelibs-yurchuk-manual

mute/-ydb/tests/olap/ttl_tiering-data_correctness.py.TestDataCorrectness.test

mute/ManyColumnShardsWithRestarts

mute/naspirato-7

mute/ydb/core/blobstorage/ut_vdisk2_VDiskTest.HugeBlobWrite

mute/ydb/core/kqp/workload_service/ut

mute/ydb/core/mind/hive/ut/THiveTest.DrainWithHiveRestart

mute/ydb/core/tablet_flat/ut_TSharedPageCache.Compaction_BTreeIndex

mute/ydb/core/viewer/tests-test.py.test_storage_groups

mute/ydb/library/yql/providers/generic/connector/tests/datasource/clickhouse-test.py.test_select_datetime

mute/ydb/library/yql/providers/generic/connector/tests/datasource/ms_sql_server-test.py.test_select_positive

mute/ydb/tests/fq/yds-test_row_dispatcher.py.TestPqRowDispatcher.test_restart_compute_node

mute/ydb/tests/olap/ttl_tiering-ttl_delete_s3.py.TestDeleteS3Ttl.test_data_unchanged_after_ttl_change

mute/ydb/tests/stress/kv/tests-test_workload.py.TestYdbKvWorkload.testcolumn]

mute/yurchuk/kqp

mute/yurchuk/kqp2

mute/yurchuk/viewer

mute/zverevgeny

naspirato/asan-retry

naspirato/coverage_2

naspirato/example

naspirato/fix_codeonwer

naspirato/mute

naspirato/mute-1

naspirato/mute-10

naspirato/mute-11

naspirato/mute-12

naspirato/mute-13

naspirato/mute-2

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naspirato/muted-4

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naspirato/muted-6

naspirato/muted-7

naspirato/muted_resolve

naspirato/olap_req

naspirato/test-asan-mod

naspirato/test_asan_mod

naspirato/test_coverage_over_nr

naspirato/test_wf

naspirato/testowners

naspirato/testowners-1

naspirato/unmute

naspirato/update_regression_wf

oidc-proxy-stable-2024-09

oleshiy-fix-yc-terraform

password_in_file

prestable-24-4

prestable-24-4-del-me

q-stable-2023-11-22

q-stable-2024-01-09

q-stable-2024-03-21

q-stable-2024-07-08

q-stable-2024-12-05

q-stable-ydb-24-1

q-stable-ydb-24-2

q-stable-ydb-24-3

readme-linkedin-link

readme-links-update

readme-social-update

revert-10009-dev/check_thread_in_blockdevice

revert-10337-fix_includes_3

revert-11474-mvcc-snapshot-evwrite

revert-11605-YQL-19292

revert-12084-harmonizer/split_to_files

revert-12824-VIEW.s3_backup.1

revert-3499-main

revert-4919-olap-buffer

revert-4924-fix-joins

revert-5604-memory-free-fix

revert-5852-marat_nurgaleev_moi_drug

revert-6270-stats-24-1/change_as_usage

revert-6271-stats-24-2/change_as_usage

revert-6286-add-enable-impl-params-to-table-service-config

revert-7492-drop_old_json

revert-750-revert-634-kqp-computation-pattern-cache-serialized-program

revert-7994-mergelibs-240819-0942

revert-8164-ci-remove-warnings

revert-8269-patch/24-3/revert-as

revert-9886-libpq17-compat

revert-9998-mute/naspirato-17

revert-dffc12acf95248fe644c7a64a71abcd5467b4bf8

rightlib

roadmap

sammyvimes/experiments

spuchin-patch-1

stable-22-2

stable-22-4

stable-22-5

stable-23-1

stable-23-2

stable-23-3

stable-23-3-33-hotfix

stable-23-4

stable-23-4-11-normalizer-fix

stable-24-1

stable-24-1-10-hotfix

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stable-24-1-8

stable-24-1-CS-patch

stable-24-1-CS-patch-2

stable-24-1-CS-patch-3

stable-24-1-CS-patch-3-att-2

stable-24-1-async-replication

stable-24-1-bump-workflows1

stable-24-1-bumpci2

stable-24-1-cbo

stable-24-1-iddqd

stable-24-1-iddqd-2

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stable-24-2

stable-24-2-1-hotfix

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stable-24-2-fix-lwtrace

stable-24-3

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stable-24-3-13-hotfix-yasubd

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stable-24-3-8-analytics

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stable-24-3-9-cs

stable-24-3-9-hotfix

stable-24-4

stable-24-4-1-hotfix

stable-24-4-compatibility-patch

stable-24-4-version-definition

stable-25-1

stream-nb-1

stream-nb-1-tracing

stream-nb-1.put-lwtrack

stream-nb-2

stream-nb-2.put-lwtrack

stream-nb-24-3

stream-nb-24.3.11.1-hotfix.7-hf.1

update-readme-docs-link

workflow-check-1

ydbdocs-557

yql-stable-2024-03-14

yql-stable-2024-05-07

yql-stable-2024-07-01

yql-stable-2024-09-03

yql-stable-2024-12-23

yql-stable-test1

yql-temp-table

robot-piglet aaf551fb50 Intermediate changes		3 months ago
..
README.md	d28c55ab25 Intermediate changes	1 year ago
stockpile.h	d17ef5729f Intermediate changes	4 months ago
stockpile_linux.cpp	aaf551fb50 Intermediate changes	3 months ago
stockpile_other.cpp	d17ef5729f Intermediate changes	4 months ago
ya.make	d28c55ab25 Intermediate changes	1 year ago

stockpile

При приближении к лимиту памяти в memory cgroup, linux запускает механизм direct reclaim, чтобы освободить свободную память. По опыту YT, direct reclaim очень сильно замедляет работу всего процесса.

Проблема возникает не только, когда память занята анонимными страницами. 50% памяти контейнера может быть занято не dirty страницами page cache, но проблема всёравно будет проявляться. Например, если процесс активно читает файлы с диска без O_DIRECT, вся память очень быстро будет забита.

Чтобы бороться с этой проблемой, в яндексовом ядре добавлена ручка madvise(MADV_STOCKPILE). Больше подробностей в https://st.yandex-team.ru/KERNEL-186

README.md

stockpile