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bug#27560: 26.0.50; seq-uniq is slow

From: Tino Calancha
Subject: bug#27560: 26.0.50; seq-uniq is slow
Date: Mon, 3 Jul 2017 23:19:27 +0900 (JST)
User-agent: Alpine 2.20 (DEB 67 2015-01-07)

On Mon, 3 Jul 2017, Nicolas Petton wrote:

Nicolas Petton <address@hidden> writes:

Indeed, I will run some benchmarks as well. In your benchmarks, cl-lib
is still much faster than seq-uniq, even if it's not as impressive as
Oleh's benchmark.

It looks like I read the benchmark results wrong :)

seq-uniq seems to be much faster than in 2015, while its definition
basically hasn't changed.  I won't investigate much further as I'm happy
with then benchmark results.
I am quite amazed with the 27 garbage collections that Oleh found:
    (benchmark-run (seq-uniq cands 'equal))
    (5.270219822 27 2.396615401000002)

I might get occasionally 1 gc, tipically 0: 27 demands a double checking.

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