francis.wang
4c86c082a2
Combine poky (Yocto scarthgap), meta-openembedded (scarthgap), and meta-openwrt into a single repository. Components: - poky/ Yocto core framework (BitBake + OE-Core) - meta-openembedded/ Community layers (meta-oe, meta-python, meta-networking) - meta-openwrt/ OpenWrt customization layer - setup-env.sh One-click build environment setup - README.md Project documentation
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25 lines
752 B
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.. SPDX-License-Identifier: CC-BY-SA-2.0-UK
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*******************
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Real-World Examples
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*******************
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This chapter contains real-world examples.
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Slow Write Speed on Live Images
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===============================
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In one of our previous releases (denzil), users noticed that booting off
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of a live image and writing to disk was noticeably slower. This included
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the boot itself, especially the first one, since first boots tend to do
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a significant amount of writing due to certain post-install scripts.
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The problem (and solution) was discovered by using the Yocto tracing
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tools, in this case 'perf stat', 'perf script', 'perf record' and 'perf
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report'.
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See all the unvarnished details of how this bug was diagnosed and solved
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here: Yocto Bug #3049
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