Re: F38 proposal: Add _FORTIFY_SOURCE=3 to distribution build flags (System-Wide Change proposal)

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On Tue, Dec 6, 2022 at 12:47 PM Siddhesh Poyarekar <siddhesh@xxxxxxxxxx> wrote:

> Overall even if there is a miniscule performance overhead, I
> reckon the reward is much higher.

I am curious how you can claim there is only a
minuscule performance overhead without doing
any benchmarks?

I am not claiming the overheads are high, I
don't know, but I know enough to trust that
when you (yourself) said in the article:

   "We need a proper study of performance
   and code size to understand the magnitude
   of the impact"

that you are making a very clear statement
that you believe that such a study is needed.

If you do not believe that that statement
is correct, will you be issuing a correction
to the posted article saying that such a study
is no longer needed?



And without any benchmarks, the proposal
should acknowledge explicitly that some
unknown performance penalty may be seen,
and needs to be accepted as a trade-off for
security reasons (some may be fine with that,
others less so, but that is a different debate
to have).
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