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Date:	Sat, 22 Feb 2025 09:24:49 -0800 (PST)
X-X-Sender:	jeremyd AT resin DOT csoft DOT net
To:	Corinna Vinschen via Cygwin <cygwin AT cygwin DOT com>
Subject:	Re: [CALL FOR TESTING] Cygwin-3.6.0
In-Reply-To:	<Z7mysSoCPc5tu1cB@calimero.vinschen.de>
Message-ID:	<7dc539c9-c4dc-085c-6691-f0fc97076246@jdrake.com>
References:	<Z7RUxWZt7iN9wxR1 AT calimero DOT vinschen DOT de>
	<aba49b13-6ae4-b9ed-298b-68c4887ee55e AT jdrake DOT com>
	<Z7mysSoCPc5tu1cB AT calimero DOT vinschen DOT de>
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From:	Jeremy Drake via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Jeremy Drake <cygwin AT jdrake DOT com>
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On Sat, 22 Feb 2025, Corinna Vinschen via Cygwin wrote:

> On Feb 21 14:35, Jeremy Drake via Cygwin wrote:
> > 2. This seems to have fixed a severe performance regression in Curl's test
> > suite (https://github.com/curl/curl/pull/16217) that I was recently
> > looking into.  My research tracked it down to c7fe29f ("Cygwin: pipe:
> > Restore blocking mode of read pipe on close()/raw_read()"), reverting that
> > got performance back to normal.  The fhandler/pipe.cc code changed
> > significantly in master vs 3.5.
>
> This sounds a bit ambiguous to me.
>
> Do you see this performance regression with the latest 3.6.0 test
> release, or does it fix this performance regression?

Sorry.  Regression introduced between 3.5.4 and 3.5.7 (we skipped 3.5.5
and 3.5.6).  "Bisected" (really, educated guess found it on the first try)
to c7fe29f.  Fixed in 3.6.0.

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