From: Greg KH <gregkh@linuxfoundation.org>
To: Kohei Tarumizu <tarumizu.kohei@fujitsu.com>
Cc: catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
x86@kernel.org, hpa@zytor.com, rafael@kernel.org,
lenb@kernel.org, mchehab+huawei@kernel.org, eugenis@google.com,
tony.luck@intel.com, pcc@google.com, peterz@infradead.org,
marcos@orca.pet, marcan@marcan.st, linus.walleij@linaro.org,
nicolas.ferre@microchip.com, conor.dooley@microchip.com,
arnd@arndb.de, ast@kernel.org, peter.chen@kernel.org,
kuba@kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org
Subject: Re: [PATCH v5 0/6] Add hardware prefetch control driver for A64FX and x86
Date: Fri, 10 Jun 2022 15:07:26 +0200 [thread overview]
Message-ID: <YqNCDrqcp9t8HlUJ@kroah.com> (raw)
In-Reply-To: <20220607120530.2447112-1-tarumizu.kohei@fujitsu.com>
On Tue, Jun 07, 2022 at 09:05:24PM +0900, Kohei Tarumizu wrote:
> This patch series add sysfs interface to control CPU's hardware
> prefetch behavior for performance tuning from userspace for the
> processor A64FX and x86 (on supported CPU).
Why does userspace want to even do this?
How will they do this?
What programs will do this?
And why isn't just automatic and why does this hardware require manual
intervention to work properly?
thanks,
greg k-h
next prev parent reply other threads:[~2022-06-10 13:07 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 12:05 Kohei Tarumizu
2022-06-07 12:05 ` [PATCH v5 1/6] soc: fujitsu: Add hardware prefetch control driver for A64FX Kohei Tarumizu
2022-06-10 13:20 ` Greg KH
2022-06-07 12:05 ` [PATCH v5 2/6] soc: fujitsu: Add Kconfig/Makefile to build hardware prefetch control driver Kohei Tarumizu
2022-06-07 14:40 ` Randy Dunlap
2022-06-07 12:05 ` [PATCH v5 3/6] arm64: Create cache sysfs directory without ACPI PPTT for hardware prefetch control Kohei Tarumizu
2022-06-07 12:05 ` [PATCH v5 4/6] x86: Add hardware prefetch control driver for x86 Kohei Tarumizu
2022-06-07 12:05 ` [PATCH v5 5/6] x86: Add Kconfig/Makefile to build hardware prefetch control driver Kohei Tarumizu
2022-06-07 14:40 ` Randy Dunlap
2022-06-08 6:11 ` tarumizu.kohei
2022-06-07 12:05 ` [PATCH v5 6/6] docs: ABI: Add sysfs documentation interface of " Kohei Tarumizu
2022-06-10 13:07 ` Greg KH [this message]
2022-06-14 11:55 ` [PATCH v5 0/6] Add hardware prefetch control driver for A64FX and x86 tarumizu.kohei
2022-06-14 12:34 ` 'Greg KH'
2022-06-17 9:20 ` tarumizu.kohei
2022-06-27 9:36 ` Linus Walleij
2022-06-28 13:55 ` tarumizu.kohei
2022-06-28 16:39 ` Luck, Tony
2022-06-30 5:24 ` tarumizu.kohei
2022-06-28 15:46 ` Dave Hansen
2022-06-28 20:20 ` Linus Walleij
2022-06-28 21:01 ` Dave Hansen
2022-06-28 21:17 ` Linus Walleij
2022-06-30 9:43 ` tarumizu.kohei
2022-06-10 13:48 ` Linus Walleij
2022-06-17 9:06 ` tarumizu.kohei
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