1.. SPDX-License-Identifier: CC-BY-SA-2.0-UK 2 3******************* 4Real-World Examples 5******************* 6 7| 8 9This chapter contains real-world examples. 10 11Slow Write Speed on Live Images 12=============================== 13 14In one of our previous releases (denzil), users noticed that booting off 15of a live image and writing to disk was noticeably slower. This included 16the boot itself, especially the first one, since first boots tend to do 17a significant amount of writing due to certain post-install scripts. 18 19The problem (and solution) was discovered by using the Yocto tracing 20tools, in this case 'perf stat', 'perf script', 'perf record' and 'perf 21report'. 22 23See all the unvarnished details of how this bug was diagnosed and solved 24here: Yocto Bug #3049 25