From: Christoph Hellwig <hch@infradead.org>
To: Alexandre Ghiti <aghiti@upmem.com>
Cc: aou@eecs.berkeley.edu, catalin.marinas@arm.com,
palmer@sifive.com, ndesaulniers@google.com, mingo@kernel.org,
atish.patra@wdc.com, linux-riscv@lists.infradead.org,
akpm@linux-foundation.org, mike.kravetz@oracle.com
Subject: Re: [PATCH 3/3] riscv: Adjust mmap base address at a third of task size
Date: Tue, 15 Jan 2019 08:02:06 -0800 [thread overview]
Message-ID: <20190115160206.GF13095@infradead.org> (raw)
In-Reply-To: <20181210062146.24951-4-aghiti@upmem.com>
On Mon, Dec 10, 2018 at 06:21:46AM +0000, Alexandre Ghiti wrote:
> This ratio is the most used among all other architectures and make
> icache_hygiene libhugetlbfs test pass: this test mmap lots of
> hugepages whose addresses, without this patch, reach the end of
> the process user address space.
This does indeed look common, so this looks sensible to me and might
be worth picking up ASAP even without the hugetlb support:
Reviewed-by: Christoph Hellwig <hch@lst.de>
I wonder if we should provide this value as a defualt
TASK_UNMAPPED_BASE if the architecture doesn't provide one.
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next prev parent reply other threads:[~2019-01-15 16:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-10 6:21 [PATCH 0/3] Hugetlbfs support for riscv Alexandre Ghiti
2018-12-10 6:21 ` [PATCH 1/3] riscv: Introduce huge page support for 32/64bit kernel Alexandre Ghiti
2019-01-11 6:18 ` Paul Walmsley
2019-01-11 13:58 ` Alexandre Ghiti
2019-01-15 16:11 ` Christoph Hellwig
2019-01-15 18:52 ` Alex Ghiti
2018-12-10 6:21 ` [PATCH 2/3] riscv: Fix wrong comment about task size for riscv64 Alexandre Ghiti
2019-01-15 15:58 ` Christoph Hellwig
2019-01-15 18:53 ` Alex Ghiti
2019-02-07 12:52 ` Alexandre Ghiti
2018-12-10 6:21 ` [PATCH 3/3] riscv: Adjust mmap base address at a third of task size Alexandre Ghiti
2019-01-15 16:02 ` Christoph Hellwig [this message]
2019-01-15 18:54 ` Alex Ghiti
2019-01-25 19:02 ` Palmer Dabbelt
2019-01-26 9:23 ` Alex Ghiti
2019-01-27 16:57 ` Alex Ghiti
2019-01-28 11:17 ` Alexandre Ghiti
2019-01-07 17:57 ` [PATCH 0/3] Hugetlbfs support for riscv Alex Ghiti
2019-01-07 21:52 ` Paul Walmsley
2019-01-08 9:26 ` Alexandre Ghiti
2019-01-09 18:26 ` Palmer Dabbelt
2019-01-09 19:23 ` Mike Kravetz
2019-01-09 22:15 ` Palmer Dabbelt
2019-01-10 7:33 ` Alex Ghiti
2019-01-10 8:09 ` Alex Ghiti
2019-01-10 18:28 ` Mike Kravetz
2019-01-12 1:09 ` Alex Ghiti
2019-01-15 16:04 ` Christoph Hellwig
2019-01-15 18:56 ` Alex Ghiti
2019-01-15 19:25 ` Mike Kravetz
2019-01-15 20:52 ` Christoph Hellwig
2019-01-16 13:18 ` Alexandre Ghiti
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