From: Andrew Morton <akpm@linux-foundation.org>
To: Eric B Munson <emunson@akamai.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>,
linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mips@linux-mips.org, linux-parisc@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org,
linux-xtensa@linux-xtensa.org, linux-mm@kvack.org,
linux-arch@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH 0/3] Allow user to request memory to be locked on page fault
Date: Fri, 8 May 2015 12:42:03 -0700 [thread overview]
Message-ID: <20150508124203.6679b1d35ad9555425003929@linux-foundation.org> (raw)
In-Reply-To: <1431113626-19153-1-git-send-email-emunson@akamai.com>
On Fri, 8 May 2015 15:33:43 -0400 Eric B Munson <emunson@akamai.com> wrote:
> mlock() allows a user to control page out of program memory, but this
> comes at the cost of faulting in the entire mapping when it is
> allocated. For large mappings where the entire area is not necessary
> this is not ideal.
>
> This series introduces new flags for mmap() and mlockall() that allow a
> user to specify that the covered are should not be paged out, but only
> after the memory has been used the first time.
Please tell us much much more about the value of these changes: the use
cases, the behavioural improvements and performance results which the
patchset brings to those use cases, etc.
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next prev parent reply other threads:[~2015-05-08 19:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-08 19:33 Eric B Munson
2015-05-08 19:33 ` [PATCH 1/3] Add flag to request pages are locked after " Eric B Munson
2015-05-08 19:33 ` [PATCH 2/3] Add mlockall flag for locking pages on fault Eric B Munson
2015-05-08 19:33 ` [PATCH 3/3] Add tests for lock " Eric B Munson
2015-05-08 19:42 ` Andrew Morton [this message]
2015-05-08 20:06 ` [PATCH 0/3] Allow user to request memory to be locked on page fault Eric B Munson
2015-05-08 20:15 ` Andrew Morton
2015-05-11 14:36 ` Eric B Munson
2015-05-11 19:12 ` Andrew Morton
2015-05-11 21:05 ` Eric B Munson
2015-05-13 13:58 ` Michal Hocko
2015-05-13 14:14 ` Eric B Munson
2015-05-11 18:06 ` Eric B Munson
2015-05-13 15:00 ` Eric B Munson
2015-05-14 8:08 ` Michal Hocko
2015-05-14 13:58 ` Eric B Munson
2015-05-15 15:35 ` Eric B Munson
2015-05-19 20:30 ` Eric B Munson
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