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authorMark Hatle <mark.hatle@windriver.com>2012-05-10 18:13:38 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2012-05-11 17:59:53 +0100
commitd9f655753fbdc8cbd8e705577430fed4f23732b3 (patch)
tree735024e0537a94d63ad9a8baf9bb379158bb9f8b /meta/classes/pkgconfig.bbclass
parent4cb21630cf87e6cc9a062f1c2be9fea25d3e218a (diff)
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sstate.bbclass: Improve sstate_installpkg performance
In a pathological case, lots of files to process, the sstate_installpkg performance was very poor. It interated over each file and ran 3 individual sed commands per file. Changing this to keep iterating but running only a single command took about 1/3 time time. However, when looking at the corresponding sstate_hardcode_path function, it was clear we could optimize this further. Using the same encoding logic to specify only the minimumal sed operation necessary, and using xargs to avoid the os.system call the install step was able to be performed in 13% of the original time. Example timing numbers for perl: 3m7s original code 1m20s single sed, but interating 0m26s using xargs and limited sed Signed-off-by: Mark Hatle <mark.hatle@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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