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Re: [lkp-robot] [Kbuild] 050e9baa9d: netperf.Throughput_total_tps ...

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Linus Torvalds writes: (Summary) wrote:

[...]

FYI, we noticed a -5.6% regression of netperf.Throughput_total_tps due to commit 050e9b ("Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables") That's perhaps a surprisingly large cost to stack protector, but you did move from "no stack protector at all": did move from "no stack protector at all":

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CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
To having the *strong* stack protector enabled:
To having the *strong* stack protector enabled:

[...]

CONFIG_CC_HAS_SANE_STACKPROTECTOR=y
so you're testing the "no overhead" case to the "worst overhead" case.

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