mirror of
https://git.yoctoproject.org/poky
synced 2026-05-01 06:32:11 +02:00
7ea70a656b
SPDX headers have been added to each file, and match the headers used in the DocBook files. (From yocto-docs rev: 79dbb0007ae24da4a3689a23e921f2a2638757f7) Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
23 lines
746 B
ReStructuredText
23 lines
746 B
ReStructuredText
.. SPDX-License-Identifier: CC-BY-2.0-UK
|
|
|
|
*******************
|
|
Real-World Examples
|
|
*******************
|
|
|
|
This chapter contains real-world examples.
|
|
|
|
Slow Write Speed on Live Images
|
|
===============================
|
|
|
|
In one of our previous releases (denzil), users noticed that booting off
|
|
of a live image and writing to disk was noticeably slower. This included
|
|
the boot itself, especially the first one, since first boots tend to do
|
|
a significant amount of writing due to certain post-install scripts.
|
|
|
|
The problem (and solution) was discovered by using the Yocto tracing
|
|
tools, in this case 'perf stat', 'perf script', 'perf record' and 'perf
|
|
report'.
|
|
|
|
See all the unvarnished details of how this bug was diagnosed and solved
|
|
here: Yocto Bug #3049
|