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1*******************
2Real-World Examples
3*******************
4
5This chapter contains real-world examples.
6
7Slow Write Speed on Live Images
8===============================
9
10In one of our previous releases (denzil), users noticed that booting off
11of a live image and writing to disk was noticeably slower. This included
12the boot itself, especially the first one, since first boots tend to do
13a significant amount of writing due to certain post-install scripts.
14
15The problem (and solution) was discovered by using the Yocto tracing
16tools, in this case 'perf stat', 'perf script', 'perf record' and 'perf
17report'.
18
19See all the unvarnished details of how this bug was diagnosed and solved
20here: Yocto Bug #3049