dev-manual: how to purge duplicate sstate cache files

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State New
Headers show
Series dev-manual: how to purge duplicate sstate cache files | expand

Commit Message

Michael Opdenacker Nov. 19, 2021, 4:06 p.m. UTC
Signed-off-by: Michael Opdenacker <>
 documentation/dev-manual/common-tasks.rst | 25 ++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)


diff --git a/documentation/dev-manual/common-tasks.rst b/documentation/dev-manual/common-tasks.rst
index 3eead147a3..37612c84b7 100644
--- a/documentation/dev-manual/common-tasks.rst
+++ b/documentation/dev-manual/common-tasks.rst
@@ -6242,8 +6242,11 @@  Changing the listed common targets is as easy as editing your version of
 ``conf-notes.txt`` in your custom template configuration directory and
 making sure you have ``TEMPLATECONF`` set to your directory.
+Conserving Disk Space
 Conserving Disk Space During Builds
 To help conserve disk space during builds, you can add the following
 statement to your project's ``local.conf`` configuration file found in
@@ -6257,6 +6260,26 @@  building a recipe once the recipe is built. For more information on
 :ref:`rm_work <ref-classes-rm-work>` class in the
 Yocto Project Reference Manual.
+Purging Duplicate Shared State Cache Files
+After multiple build iterations, the Shared State (sstate) cache can contain
+duplicate cache files for a given package, while only the most recent one
+is likely to be reusable. The following command purges all but the
+newest sstate cache file for each package::
+ --remove-duplicated --cache-dir=build/sstate-cache
+This command will ask you to confirm the deletions it identifies.
+   The duplicated sstate cache files of one package must have the same
+   architecture, which means that sstate cache files with multiple
+   architectures are not considered as duplicate.
+Run ```` for more details about this script.
 Working with Packages