From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Alex Thorlton <athorlton@sgi.com>
Cc: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Rik van Riel <riel@redhat.com>,
Johannes Weiner <hannes@cmpxchg.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Sedat Dilek <sedat.dilek@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Dave Jones <davej@redhat.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
David Howells <dhowells@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Al Viro <viro@zeniv.linux.org.uk>,
Oleg Nesterov <oleg@redhat.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
Kees Cook <keescook@chromium.org>, Robin Holt <holt@sgi.com>,
linux-kernel@vger.kernel.org
Subject: RE: [PATCH] Add per-process flag to control thp
Date: Fri, 2 Aug 2013 23:13:01 +0300 (EEST) [thread overview]
Message-ID: <20130802201301.A872BE0090@blue.fi.intel.com> (raw)
In-Reply-To: <20130802194659.GP26476@sgi.com>
Alex Thorlton wrote:
> This patch implements functionality to allow processes to disable the use of
> transparent hugepages through the prctl syscall.
>
> We've determined that some jobs perform significantly better with thp disabled,
> and we need a way to control thp on a per-process basis, without relying on
> madvise.
What kind of workloads are you talking about?
What's wrong with madvise? Could you elaborate?
And I think thp_disabled should be reset to 0 on exec.
--
Kirill A. Shutemov
next prev parent reply other threads:[~2013-08-02 20:10 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-02 19:46 [PATCH] Add per-process flag to control thp Alex Thorlton
2013-08-02 19:53 ` Dave Jones
2013-08-02 20:00 ` Alex Thorlton
2013-08-02 20:13 ` Kirill A. Shutemov [this message]
2013-08-02 20:34 ` Alex Thorlton
2013-08-02 23:59 ` Kirill A. Shutemov
2013-08-03 19:35 ` Kees Cook
2013-08-04 14:19 ` Oleg Nesterov
2013-08-05 2:36 ` Andi Kleen
2013-08-05 15:07 ` Alex Thorlton
2013-08-16 14:33 ` [PATCH 0/8] " Alex Thorlton
2013-08-16 14:33 ` [PATCH 1/8] THP: Use real address for NUMA policy Alex Thorlton
2013-08-16 17:53 ` Dave Hansen
2013-08-16 18:17 ` Alex Thorlton
2013-08-16 18:52 ` Kirill A. Shutemov
2013-08-27 16:50 ` Alex Thorlton
2013-08-27 17:01 ` Robin Holt
2013-09-04 15:43 ` Alex Thorlton
2013-09-04 17:15 ` Alex Thorlton
2013-09-05 11:15 ` Ingo Molnar
2013-09-09 16:48 ` Alex Thorlton
2013-09-10 7:47 ` [benchmark] THP performance testcase Ingo Molnar
2013-09-13 13:06 ` [PATCH 0/9] split page table lock for PMD tables Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 1/9] mm: rename SPLIT_PTLOCKS to SPLIT_PTE_PTLOCKS Kirill A. Shutemov
2013-09-13 15:20 ` Dave Hansen
2013-09-13 13:06 ` [PATCH 2/9] mm: convert mm->nr_ptes to atomic_t Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 3/9] mm: introduce api for split page table lock for PMD level Kirill A. Shutemov
2013-09-13 13:19 ` Peter Zijlstra
2013-09-13 14:22 ` Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 4/9] mm, thp: change pmd_trans_huge_lock() to return taken lock Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 5/9] mm, thp: move ptl taking inside page_check_address_pmd() Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 6/9] mm, thp: do not access mm->pmd_huge_pte directly Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 7/9] mm: convent the rest to new page table lock api Kirill A. Shutemov
2013-09-13 13:06 ` [PATCH 8/9] mm: implement split page table lock for PMD level Kirill A. Shutemov
2013-09-13 13:24 ` Peter Zijlstra
2013-09-13 14:25 ` Kirill A. Shutemov
2013-09-13 14:52 ` Peter Zijlstra
2013-09-13 13:36 ` Peter Zijlstra
2013-09-13 14:25 ` Kirill A. Shutemov
2013-09-13 15:45 ` Naoya Horiguchi
2013-09-13 19:57 ` Dave Hansen
2013-09-13 13:06 ` [PATCH 9/9] x86, mm: enable " Kirill A. Shutemov
[not found] ` <20130828091814.GA13681@gmail.com>
2013-08-28 9:32 ` [PATCH 1/8] THP: Use real address for NUMA policy Peter Zijlstra
2013-08-16 19:46 ` Peter Zijlstra
2013-08-16 19:49 ` Alex Thorlton
2013-08-16 14:33 ` [PATCH 2/8] mm: make clear_huge_page tolerate non aligned address Alex Thorlton
2013-08-16 14:33 ` [PATCH 3/8] THP: Pass real, not rounded, address to clear_huge_page Alex Thorlton
2013-08-16 14:34 ` [PATCH 4/8] x86: Add clear_page_nocache Alex Thorlton
2013-08-16 14:34 ` [PATCH 5/8] mm: make clear_huge_page cache clear only around the fault address Alex Thorlton
2013-08-16 18:02 ` Dave Hansen
2013-08-16 14:34 ` [PATCH 6/8] x86: switch the 64bit uncached page clear to SSE/AVX v2 Alex Thorlton
2013-08-16 14:34 ` [PATCH 7/8] remove KM_USER0 from kmap_atomic call Alex Thorlton
2013-08-16 14:34 ` [PATCH 8/8] fix up references to kernel_fpu_begin/end Alex Thorlton
2013-08-16 14:47 ` [PATCH 0/8] Re: [PATCH] Add per-process flag to control thp Peter Zijlstra
2013-08-16 15:04 ` Alex Thorlton
2013-08-04 14:44 ` Rasmus Villemoes
2013-08-28 13:56 ` Andrea Arcangeli
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