diff options
Diffstat (limited to 'documentation/profile-manual/examples.rst')
-rw-r--r-- | documentation/profile-manual/examples.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/documentation/profile-manual/examples.rst b/documentation/profile-manual/examples.rst new file mode 100644 index 0000000000..97a9e9e21a --- /dev/null +++ b/documentation/profile-manual/examples.rst | |||
@@ -0,0 +1,24 @@ | |||
1 | .. SPDX-License-Identifier: CC-BY-SA-2.0-UK | ||
2 | |||
3 | ******************* | ||
4 | Real-World Examples | ||
5 | ******************* | ||
6 | |||
7 | | | ||
8 | |||
9 | This chapter contains real-world examples. | ||
10 | |||
11 | Slow Write Speed on Live Images | ||
12 | =============================== | ||
13 | |||
14 | In one of our previous releases (denzil), users noticed that booting off | ||
15 | of a live image and writing to disk was noticeably slower. This included | ||
16 | the boot itself, especially the first one, since first boots tend to do | ||
17 | a significant amount of writing due to certain post-install scripts. | ||
18 | |||
19 | The problem (and solution) was discovered by using the Yocto tracing | ||
20 | tools, in this case 'perf stat', 'perf script', 'perf record' and 'perf | ||
21 | report'. | ||
22 | |||
23 | See all the unvarnished details of how this bug was diagnosed and solved | ||
24 | here: Yocto Bug #3049 | ||