From: Catalin Marinas <catalin.marinas@foss.arm.com>
To: Jungseok Lee <jungseoklee85@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
Catalin Marinas <catalin.marinas@arm.com>,
"barami97@gmail.com" <barami97@gmail.com>,
Will Deacon <will.deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [RFC PATCH 2/2] arm64: Implement vmalloc based thread_info allocator
Date: Mon, 25 May 2015 19:47:15 +0300 [thread overview]
Message-ID: <F68D2983-226C-4704-A1E0-E79C9425B822@foss.arm.com> (raw)
In-Reply-To: <B873B881-4972-4524-B1D9-4BB05D7248A4@gmail.com>
On 25 May 2015, at 13:01, Jungseok Lee <jungseoklee85@gmail.com> wrote:
>> Could the stack size be reduced to 8KB perhaps?
>
> I guess probably not.
>
> A commit, 845ad05e, says that 8KB is not enough to cover SpecWeb benchmark.
We could go back to 8KB stacks if we implement support for separate IRQ
stack on arm64. It's not too complicated, we would have to use SP0 for (kernel) threads
and SP1 for IRQ handlers.
Catalin
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next prev parent reply other threads:[~2015-05-25 16:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-24 16:02 Jungseok Lee
2015-05-24 17:49 ` Arnd Bergmann
2015-05-25 10:01 ` Jungseok Lee
2015-05-25 14:58 ` Minchan Kim
2015-05-26 12:10 ` Jungseok Lee
2015-05-27 4:24 ` Minchan Kim
2015-05-27 16:00 ` Jungseok Lee
2015-05-25 16:47 ` Catalin Marinas [this message]
2015-05-25 20:29 ` Arnd Bergmann
2015-05-25 22:36 ` Catalin Marinas
2015-05-26 9:51 ` Arnd Bergmann
2015-05-26 13:02 ` Jungseok Lee
2015-05-25 21:20 ` Arnd Bergmann
2015-05-25 14:40 ` Minchan Kim
2015-05-26 11:29 ` Jungseok Lee
2015-05-27 4:10 ` Minchan Kim
2015-05-27 6:22 ` Sergey Senozhatsky
2015-05-27 7:31 ` Arnd Bergmann
2015-05-27 16:05 ` Jungseok Lee
2015-05-27 16:08 ` Jungseok Lee
2015-05-26 2:52 ` yalin wang
2015-05-26 12:21 ` Jungseok Lee
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