From: Ingo Molnar <mingo@kernel.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Andy Lutomirski <luto@amacapital.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
Denys Vlasenko <vda.linux@googlemail.com>,
Borislav Petkov <bp@alien8.de>, X86 ML <x86@kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: For your amusement: slightly faster syscalls
Date: Thu, 18 Jun 2015 11:06:25 +0200 [thread overview]
Message-ID: <20150618090624.GA22009@gmail.com> (raw)
In-Reply-To: <B1C32488-EADB-490F-9821-7454E273EF65@zytor.com>
* H. Peter Anvin <hpa@zytor.com> wrote:
> Well... with UP we don't even need GS in the kernel...
Yeah, but it was just a simple demo, to see how much of a speedup the GS access
reordering it is, so in that sense it was good enough to see that the speedup is 3
cycles.
(Got the original email forwarded meanwhile.)
Thanks,
Ingo
prev parent reply other threads:[~2015-06-18 9:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-13 0:09 For your amusement: slightly faster syscalls Andy Lutomirski
[not found] ` <CA+55aFzMCeDc5rw8bj3Zyimbi7C1RcU15TeiMA6jOMfnd+3B=Q@mail.gmail.com>
2015-06-15 21:42 ` H. Peter Anvin
2015-06-15 21:51 ` Andy Lutomirski
2015-06-18 8:01 ` Ingo Molnar
2015-06-18 8:48 ` Ingo Molnar
2015-06-18 8:50 ` H. Peter Anvin
2015-06-18 9:06 ` Ingo Molnar [this message]
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