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Date:   Wed, 8 Feb 2023 21:45:39 +0100
From:   Peter Zijlstra <peterz@infradead.org>
To:     Andrew.Cooper3@citrix.com
Cc:     x86@kernel.org, linux-kernel@vger.kernel.org, mhiramat@kernel.org,
        kirill.shutemov@linux.intel.com, jpoimboe@redhat.com
Subject: Re: [PATCH v3 3/4] x86/alternative: Rewrite optimize_nops() some
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On Wed, Feb 08, 2023 at 09:44:04PM +0100, Peter Zijlstra wrote:
> GNU as seems to go to .nops 12. 13 gives me a single byte nop and a 12.
> That's also exactly the 3 prefix limit, after which some uarchs start
> taking heavy decode penalties.

Oh noes, counting hard. It maxes out at 11, not 12. Sadness.

Instead, lemme go figure out what those alternatives actually are.