Re: [PATCH 1/2] lib/string: Improve strstarts() performance

[Zijun Hu]

On 2025/4/7 21:51, Andy Shevchenko wrote:
> First of all, this function is supposed to be run against constant string literals.

for strstarts(s, "prefix"), strlen("prefix") should *NOT* be compile
time constant. it is a loop and unavoidable to have strlen("prefix")
iterations.

> Second, this commit message has zero proofs to tell if there is actual performance
> downgrage even in the case when prefix is not a constant string literal.

for either constant string or non constant string. this patch
eliminating a loop which have strlen()iterations. i feel it is obvious
it can improve performance.