consider cherry picking glibc improvement for memchr on ARM |
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Issue descriptionConsider cherry-picking ARM improvements for memchr from here: https://patchwork.sourceware.org/patch/20982/ questions, does this routine show in CWP profiles? do we have any benchmarks for this to measure imprvoement?
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Jan 2 2018
[It appears that a bunch of old cros issues bulk-added the "Infra" component recently, but they should probably be "Infra>Client>ChromeOS".]
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Jan 4 2018
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Feb 5 2018
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Oct 10
We are going to upgrade glibc to glibc 2.27 soon, the memchar takes less than 0.1% running time so we just skip this cherry pick for now.
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Oct 10
is the patch part of glibc 2.27 or 2.28?
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Oct 10
No.
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Oct 10
Please clarify.. where is this at?
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Oct 10
The patch https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;a=commit;h=c47c9bdc1b94b2ae9432f90b6b93fd99f7f9c209 landed in glibc 2.26 |
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Comment 1 by zalcorn@chromium.org
, Dec 26 2017