Tree:
06c6c6616b
24-1-mkql-runtime
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-dirty_fix_clang14
dev-jinja-html
dev-jinja-html2
dev-night
dev-nightly
dev-remove_clang14_from_pr
dev-sammy-optimization
dev-stable-24-3
dev-test-policy
dev-warmup
dev-whole-analytics
dev-whole-analytics-sammy
dev_dirty_fix_clang14
docker-connect-doc-up
docs-3-nodes-mirror-3-dc
docs-371-tmp
docs-633-review-follow-up
docs-add-coscup
docs-add-database-node-synonym
docs-add-gitignore
docs-add_translation_for_terraform_ydb_doc
docs-ansible-add-extra-note
docs-ansible-installation-options
docs-ansible-mistype-restart
docs-ansible-ydb-archive
docs-bugfix
docs-build-fixes
docs-change-storage-bucket
docs-cli-recipes
docs-cli-restore-import-data
docs-codowners-root-md
docs-columnar-pk
docs-concepts-cluster
docs-contents-snippet
docs-create-table-ident
docs-dark-theme
docs-data-at-rest-improvement
docs-default-sql-version
docs-dev-getting-started-mistype
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-edit-ru-ansible-articles
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-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-docker-arm
docs-refactor-build-sh
docs-refactoring-ydbdocs-633
docs-release-workflow-add-paths
docs-remove-setup-playbook-mention
docs-rm-mirror-3dc-3-nodes
docs-ru-glossary-terminology-fixes
docs-ru-index-yaml
docs-security-encryption
docs-simplify-sidebar
docs-single-page
docs-stackonf-fix-url
docs-test-codeowners
docs-test-if-oss
docs-tls-mistype
docs-tmp-alter-table
docs-topic-workload-fix-option-name
docs-topology-md-improvements
docs-translate-9019
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-ya-make-yql
docs-ydb-go-sdk-prometheus
docs-ydb-var
docs-ydbdocs-119-glossary-revamp
docs-ydbdocs-191-translate-fq
docs-ydbdocs-519-translate-config-related
docs-ydbdocs-596
docs-ydbdocs-633-continue
docs-ydbdocs-633-continue-2
docs-ydbdocs-633-continue-3
docs-ydbdocs-633-continue-4
docs-ydbdocs-633-refactoring
docs-ydbdocs-653-restore-minikube-quickstart
docs-ydbdocs-668-add-ansible-logging
docs-ydbdocs-668-playbook-name
docs-ydbdocs-690-ansible-restart
docs-ydbdocs-691-introduce-recipes-section
docs-ydbdocs-692-update-config
docs-ydbdocs-696-fix-yql-build
docs-ydbdocs-760-analytics-faq
docs-ydbdocs-804-ansible-fq-connector
docs-ydbdocs-909
docs-ydbdocs-917
docs-ydbops-9957-updating-executables-ansible
docs-yfm-link
docs-yfm-warnings
docs-yfmlint
docs-yfmlint-2
docs-yfmlint-3
docstools-update-build-workflow
embedded-ui-refresh-v4.31.0
embedded-ui-refresh-v4.31.1
embedded-ui-v4.33.0
embedded-ui-v5.5.0
embedded-ui-v6.10.2
embedded-ui-v6.16.0
embedded-ui-v6.17.2
embedded-ui-v6.28.0
embedded-ui-v6.4.0
embedded-ui-v6.8.0
feature/KIKIMR-20843/fix-reserve
feature/backups/pre-6
feature/integrations_and_ide
fix-header-ident-bloom
license-year-2023
main
mergelibs-240308-1527
mergelibs-240312-1040
mergelibs-240313-1032
mergelibs-240313-1536
mergelibs-240318-0944
mergelibs-240325-1123
mergelibs-240326-1411
mergelibs-240326-1608
mergelibs-240327-1029
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mergelibs-241106-0903
mergelibs-241108-0852
mergelibs-241115-0911
mergelibs-yql
mergelibs-yurchuk-manual
mute/naspirato
mute/naspirato-1
mute/naspirato-10
mute/naspirato-11
mute/naspirato-12
mute/naspirato-13
mute/naspirato-14
mute/naspirato-15
mute/naspirato-16
mute/naspirato-17
mute/naspirato-18
mute/naspirato-19
mute/naspirato-2
mute/naspirato-20
mute/naspirato-21
mute/naspirato-3
mute/naspirato-4
mute/naspirato-5
mute/naspirato-6
mute/naspirato-7
mute/naspirato-7-1
mute/naspirato-8
mute/naspirato-9
mute/ydb/core/kqp/workload_service/ut
mute/ydb/core/mind/hive/ut/THiveTest.DrainWithHiveRestart
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/yurchuk/kqp
mute/yurchuk/kqp2
naspirato/fix_report_html
naspirato/mute
naspirato/mute-1
naspirato/mute-2
naspirato/mute-3
naspirato/mute-4
naspirato/mute-5
naspirato/mute-6
naspirato/mute-patch-1
naspirato/patch-1
naspirato/patch-1-1
naspirato/unmute
naspirato/unmute-1
naspirato/unmute-2
naspirato/unmute-3
naspirato/update_collect_analytics
oidc-proxy-stable-2024-09
oleshiy-fix-yc-terraform
password_in_file
prestable-24-4
q-stable-2023-11-22
q-stable-2024-01-09
q-stable-2024-03-21
q-stable-2024-07-08
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-3499-main
revert-4919-olap-buffer
revert-4924-fix-joins
revert-5604-memory-free-fix
revert-5852-marat_nurgaleev_moi_drug
revert-6267-stats/change_as_usage
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-8383-legacy_kv_api_remove
revert-9886-libpq17-compat
revert-9998-mute/naspirato-17
rightlib
roadmap
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
stable-24-1-14-analytics
stable-24-1-14-hotfix
stable-24-1-14-roaring
stable-24-1-16-analytics
stable-24-1-18-analytics
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
stable-24-1-iddqd-3
stable-24-2
stable-24-2-1-hotfix
stable-24-2-4-analytics
stable-24-2-4-hotfix
stable-24-2-6-hotfix
stable-24-2-7-hotfix
stable-24-2-fix-lwtrace
stable-24-3
stable-24-3-10-analytics
stable-24-3-10-hotfix
stable-24-3-11-hotfix
stable-24-3-6-logbroker
stable-24-3-7-hotfix
stable-24-3-8-analytics
stable-24-3-8-analytics-misha
stable-24-3-9-cs
stable-24-3-9-hotfix
stream-nb-1
stream-nb-1-tracing
stream-nb-1.put-lwtrack
stream-nb-2
stream-nb-2.put-lwtrack
stream-nb-24-3
testowners/naspirato
testowners/naspirato-patch-1
unmute/naspirato
unmute/naspirato-1
unmute/naspirato-2
unmute/naspirato_test
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-test1
yql-temp-table
24.3.11-hotfix.7.stream-nb-24-3
24.3.11-hotfix.6.stream-nb-24-3
24.3.11-hotfix.7
24.3.13
24.3.11-hotfix.5.stream-nb-24-3.1
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24.3.11-hotfix.5.stream-nb-24-3
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24.3.11-hotfix.3.stream-nb-24-3
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24.3.12
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24.3.11
24.3.10-stream-nb-24-3
CLI_2.15.0
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24.3.9-hotfix-11
CLI_2.14.0
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24.2.7-stream-nb-2.3
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README.md 1.0 KB
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