From: Alex Elsayed <eternaleye@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: linux-api@vger.kernel.org
Subject: Re: [PATCH 00/12] Add kdbus implementation
Date: Thu, 30 Oct 2014 13:28:09 -0700 [thread overview]
Message-ID: <m2u70q$gtl$2@ger.gmane.org> (raw)
In-Reply-To: CALCETrXv_CevG7166++ZHBok0ae7mNhF83VjrRVQ2AKF22Vf_g@mail.gmail.com
Andy Lutomirski wrote:
<snip>
> There should be a number measured in, say, nanoseconds in here
> somewhere. The actual extent of the speedup is unmeasurable here.
> Also, it's worth reading at least one of Linus' many rants about
> zero-copy. It's not an automatic win.
It's well-understood that it's not an automatic win; significant testing on
multiple architectures indicated that 512K is a surprisingly universal
crossover point. The userspace code, therefore, switches from copying
(normal kdbus parameters) to zero-copy (memfds) right around there.
next prev parent reply other threads:[~2014-10-30 20:28 UTC|newest]
Thread overview: 186+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-29 22:00 [PATCH 00/12] Add kdbus implementation Greg Kroah-Hartman
2014-10-29 22:00 ` Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add documentation Greg Kroah-Hartman
2014-10-30 12:20 ` Peter Meerwald
[not found] ` <alpine.DEB.2.02.1410301231040.32212-jW+XmwGofnusTnJN9+BGXg@public.gmane.org>
2014-11-02 1:29 ` Greg Kroah-Hartman
2014-11-02 1:29 ` Greg Kroah-Hartman
[not found] ` <1414620056-6675-1-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2014-10-29 22:00 ` kdbus: add header file Greg Kroah-Hartman
2014-10-29 22:00 ` Greg Kroah-Hartman
[not found] ` <1414620056-6675-3-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2014-10-30 8:20 ` Arnd Bergmann
2014-10-30 8:20 ` Arnd Bergmann
2014-10-30 11:02 ` Tom Gundersen
2014-10-30 11:26 ` Arnd Bergmann
2014-10-30 11:52 ` Daniel Mack
2014-10-30 11:52 ` Daniel Mack
2014-10-30 12:03 ` Arnd Bergmann
2014-10-31 10:03 ` Daniel Mack
2014-10-31 10:03 ` Daniel Mack
2014-10-29 22:00 ` kdbus: add connection pool implementation Greg Kroah-Hartman
2014-10-29 22:00 ` Greg Kroah-Hartman
2014-10-29 22:15 ` [PATCH 00/12] Add kdbus implementation Greg KH
2014-10-29 22:15 ` Greg KH
[not found] ` <20141029221505.GA7812-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-10-30 4:04 ` Eric W. Biederman
2014-10-30 4:04 ` Eric W. Biederman
[not found] ` <87egtqurrp.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-10-30 7:12 ` Daniel Mack
2014-10-30 7:12 ` Daniel Mack
2014-10-29 22:19 ` Andy Lutomirski
2014-10-29 22:19 ` Andy Lutomirski
2014-10-29 22:25 ` Greg Kroah-Hartman
2014-10-29 22:28 ` Andy Lutomirski
2014-10-29 22:36 ` Andy Lutomirski
[not found] ` <CALCETrX6vf7cKy=XDhDtn9hn1W930MRxBa=pk93RnyuZ-EaNyw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 7:44 ` Daniel Mack
2014-10-30 7:44 ` Daniel Mack
[not found] ` <CALCETrUBegZ4F1sKq3LxUgANX3=syYOrqOp9=F--g9pkVHHgUA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-05 14:34 ` Daniel Mack
2014-11-05 14:34 ` Daniel Mack
2014-10-29 23:00 ` Jiri Kosina
2014-10-29 23:00 ` Jiri Kosina
[not found] ` <alpine.LRH.2.00.1410292354480.11562-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2014-10-29 23:11 ` Greg Kroah-Hartman
2014-10-29 23:11 ` Greg Kroah-Hartman
[not found] ` <20141029231106.GB16548-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-10-29 23:12 ` Greg Kroah-Hartman
2014-10-29 23:12 ` Greg Kroah-Hartman
2014-10-29 23:24 ` Jiri Kosina
2014-10-29 23:24 ` Jiri Kosina
[not found] ` <alpine.LRH.2.00.1410300019570.11562-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2014-10-29 23:26 ` Jiri Kosina
2014-10-29 23:26 ` Jiri Kosina
[not found] ` <alpine.LRH.2.00.1410300024530.11562-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2014-10-29 23:34 ` Greg Kroah-Hartman
2014-10-29 23:34 ` Greg Kroah-Hartman
2014-10-29 23:40 ` Greg Kroah-Hartman
2014-10-29 23:40 ` Greg Kroah-Hartman
2014-10-29 23:55 ` Andy Lutomirski
2014-10-30 11:52 ` Tom Gundersen
[not found] ` <CAG-2HqX9RUQHiF1U_CXiDVVLS-7aUOQdYn7EVNSMZNdbe38cTA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 12:28 ` Simon McVittie
2014-10-30 12:28 ` Simon McVittie
2014-10-30 13:59 ` Andy Lutomirski
2014-10-30 20:28 ` Alex Elsayed [this message]
2014-10-30 9:51 ` Karol Lewandowski
2014-10-30 9:51 ` Karol Lewandowski
[not found] ` <54520A21.20404-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-10-30 10:44 ` Karol Lewandowski
2014-10-30 10:44 ` Karol Lewandowski
[not found] ` <54521697.1030900-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-10-30 14:47 ` Greg Kroah-Hartman
2014-10-30 14:47 ` Greg Kroah-Hartman
[not found] ` <20141030144709.GA19721-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-10-30 19:55 ` Karol Lewandowski
2014-10-30 19:55 ` Karol Lewandowski
[not found] ` <545297CC.6020306-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-10-30 20:24 ` Greg Kroah-Hartman
2014-10-30 20:24 ` Greg Kroah-Hartman
2014-10-31 11:15 ` Karol Lewandowski
2014-10-30 23:13 ` One Thousand Gnomes
2014-10-30 23:13 ` One Thousand Gnomes
[not found] ` <20141030231310.0b65b762-mUKnrFFms3BCCTY1wZZT65JpZx93mCW/@public.gmane.org>
2014-10-31 10:58 ` Karol Lewandowski
2014-10-31 10:58 ` Karol Lewandowski
2014-10-30 23:39 ` Paul Moore
2014-10-31 14:21 ` Karol Lewandowski
2014-10-31 14:21 ` Karol Lewandowski
2014-10-31 16:36 ` [RFC PATCH 0/5] kdbus: add support for lsm Karol Lewandowski
2014-10-31 16:36 ` [PATCH 1/5] kdbus: extend structures with security pointer " Karol Lewandowski
[not found] ` <1414773397-26490-2-git-send-email-k.lewandowsk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-11-17 1:47 ` Karol Lewandowski
2014-11-17 1:47 ` Karol Lewandowski
2014-11-17 18:37 ` Greg KH
2014-11-17 18:37 ` Greg KH
2014-10-31 16:36 ` [PATCH 2/5] security: export security_file_receive for modules Karol Lewandowski
2014-10-31 16:36 ` [PATCH 3/5] kdbus: check if lsm permits installing received fds Karol Lewandowski
[not found] ` <1414773397-26490-1-git-send-email-k.lewandowsk-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-10-31 16:36 ` [PATCH 4/5] security: introduce lsm hooks for kdbus Karol Lewandowski
2014-10-31 16:36 ` [PATCH 5/5] kdbus: make use of new lsm hooks Karol Lewandowski
2014-10-31 17:19 ` [PATCH 3/5] kdbus: check if lsm permits installing received fds Karol Lewandowski
2014-11-07 18:01 ` [RFC PATCH 0/5] kdbus: add support for lsm Greg KH
[not found] ` <20141107180120.GA15387-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-11-09 0:07 ` Karol Lewandowski
2014-11-09 0:07 ` Karol Lewandowski
2014-11-02 1:21 ` [PATCH 00/12] Add kdbus implementation Greg Kroah-Hartman
2014-11-02 1:21 ` Greg Kroah-Hartman
[not found] ` <20141102012130.GA9335-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-11-03 14:38 ` One Thousand Gnomes
2014-11-03 14:38 ` One Thousand Gnomes
2014-10-30 8:33 ` Arnd Bergmann
2014-10-30 8:33 ` Arnd Bergmann
2014-10-30 16:17 ` Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add driver skeleton, ioctl entry points and utility functions Greg Kroah-Hartman
[not found] ` <1414620056-6675-4-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2014-10-30 3:50 ` Eric W. Biederman
2014-10-30 3:50 ` Eric W. Biederman
2014-10-30 23:45 ` Thomas Gleixner
2014-10-30 23:45 ` Thomas Gleixner
2014-10-31 0:23 ` Jiri Kosina
2014-10-31 0:23 ` Jiri Kosina
[not found] ` <alpine.LRH.2.00.1410310114290.11562-1ReQVI26iDCaZKY3DrU6dA@public.gmane.org>
2014-10-31 0:42 ` Thomas Gleixner
2014-10-31 0:42 ` Thomas Gleixner
2014-10-29 22:00 ` kdbus: add connection, queue handling and message validation code Greg Kroah-Hartman
[not found] ` <87k33iw759.fsf@x220.int.ebiederm.org>
[not found] ` <87k33iw759.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-10-30 3:55 ` Andy Lutomirski
2014-10-30 3:55 ` Andy Lutomirski
2014-10-30 9:06 ` Djalal Harouni
2014-10-29 22:00 ` kdbus: add code to gather metadata Greg Kroah-Hartman
[not found] ` <1414620056-6675-7-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2014-10-29 22:33 ` Andy Lutomirski
2014-10-29 22:33 ` Andy Lutomirski
[not found] ` <CALCETrWqbpxk83L0k0_78JZCO+ntZhx_hHMcRu=vxs6VE2f5JQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 0:13 ` Andy Lutomirski
2014-10-30 0:13 ` Andy Lutomirski
[not found] ` <CALCETrVkuKxMMEw3HBEOZoFUuw8PndXtB13+bLWmcp_E34SaFw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 8:45 ` Daniel Mack
2014-10-30 8:45 ` Daniel Mack
[not found] ` <5451FA9B.8070501-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>
2014-10-30 14:07 ` Andy Lutomirski
2014-10-30 14:07 ` Andy Lutomirski
[not found] ` <CALCETrWjOS0AHF33zN0Vy1NC1441To7AgNPge3sKCz8bn2d8gg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 15:54 ` Daniel Mack
2014-10-30 15:54 ` Daniel Mack
[not found] ` <54525F32.3040502-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>
2014-10-30 21:01 ` Andy Lutomirski
2014-10-30 21:01 ` Andy Lutomirski
[not found] ` <CALCETrV6MLYUQN6mqZbH=FrLyrETVoemtdC05po8+X=6SKQ70A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-01 11:05 ` Daniel Mack
2014-11-01 11:05 ` Daniel Mack
[not found] ` <5454BE6E.5040507-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>
2014-11-01 16:19 ` Andy Lutomirski
2014-11-01 16:19 ` Andy Lutomirski
[not found] ` <CALCETrXxx4juUGA3mwOxq0BtErM0kj7_THxiO5LwCVLzCXnd2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-03 12:00 ` Simon McVittie
2014-11-03 12:00 ` Simon McVittie
[not found] ` <54576E48.40800-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
2014-11-03 17:05 ` Andy Lutomirski
2014-11-03 17:05 ` Andy Lutomirski
2014-10-30 8:09 ` Daniel Mack
2014-10-30 8:09 ` Daniel Mack
2014-10-29 22:00 ` kdbus: add code for notifications and matches Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add code for buses, domains and endpoints Greg Kroah-Hartman
[not found] ` <1414620056-6675-9-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2014-10-30 3:59 ` Eric W. Biederman
2014-10-30 3:59 ` Eric W. Biederman
2014-10-30 9:58 ` Djalal Harouni
2014-10-30 12:15 ` Eric W. Biederman
2014-10-30 12:15 ` Eric W. Biederman
[not found] ` <87wq7hiwjb.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-10-30 14:48 ` Djalal Harouni
2014-10-30 14:48 ` Djalal Harouni
2014-10-30 14:58 ` Andy Lutomirski
2014-10-30 14:58 ` Andy Lutomirski
2014-10-30 18:08 ` Djalal Harouni
2014-10-30 18:46 ` Simon McVittie
2014-10-30 18:46 ` Simon McVittie
[not found] ` <54528798.40107-ZGY8ohtN/8pPYcu2f3hruQ@public.gmane.org>
2014-11-05 19:59 ` Djalal Harouni
2014-11-05 19:59 ` Djalal Harouni
2014-10-30 20:37 ` Andy Lutomirski
2014-10-30 20:37 ` Andy Lutomirski
2014-10-30 21:47 ` Alex Elsayed
2014-10-30 22:00 ` Andy Lutomirski
2014-10-30 22:00 ` Andy Lutomirski
2014-10-30 23:38 ` How Not To Use kref (was Re: kdbus: add code for buses, domains and endpoints) Al Viro
2014-10-30 23:38 ` Al Viro
[not found] ` <20141030233801.GF7996-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2014-10-31 18:00 ` Linus Torvalds
2014-10-31 18:00 ` Linus Torvalds
[not found] ` <CA+55aFxB=jWGvPH3TMhB=ungOg9TBai5Ak-ma5vChBB-H2AgnQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-31 19:56 ` Al Viro
2014-10-31 19:56 ` Al Viro
2014-11-04 9:11 ` David Herrmann
2014-11-04 9:11 ` David Herrmann
2014-10-31 1:39 ` kdbus: add code for buses, domains and endpoints Al Viro
2014-10-31 1:39 ` Al Viro
[not found] ` <20141031013922.GG7996-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2014-10-31 9:55 ` Daniel Mack
2014-10-31 9:55 ` Daniel Mack
2014-10-29 22:00 ` kdbus: add name registry implementation Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add policy database implementation Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add Makefile, Kconfig and MAINTAINERS entry Greg Kroah-Hartman
2014-10-29 22:00 ` kdbus: add selftests Greg Kroah-Hartman
[not found] ` <1414620056-6675-13-git-send-email-gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
2014-10-30 8:31 ` Arnd Bergmann
2014-10-30 8:31 ` Arnd Bergmann
2014-11-14 3:42 ` Michael Ellerman
2014-11-14 3:42 ` Michael Ellerman
2014-11-14 8:56 ` Daniel Mack
2014-11-14 8:56 ` Daniel Mack
2014-10-29 22:15 ` [PATCH 00/12] Add kdbus implementation Andy Lutomirski
[not found] ` <CALCETrWrxc8foPYbRPtxwNX0sHK_=vLFLDXXyXu+2U2=B+=qCQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-29 22:27 ` Greg Kroah-Hartman
2014-10-29 22:27 ` Greg Kroah-Hartman
2014-10-29 22:34 ` Andy Lutomirski
[not found] ` <20141029222729.GB8129-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-10-30 2:27 ` Andy Lutomirski
2014-10-30 2:27 ` Andy Lutomirski
[not found] ` <CALCETrVxvF2ie=vVgpjeqikn+nci_9jyKfU4s3t=4cjyNZNaNQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 4:20 ` Eric W. Biederman
2014-10-30 4:20 ` Eric W. Biederman
[not found] ` <87bnourxx4.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2014-10-30 10:15 ` Tom Gundersen
2014-10-30 10:15 ` Tom Gundersen
[not found] ` <CAG-2HqUChohNrRSdXzckSiv8ZUYwFLMvRTc41Uo7-b-qmkSFMQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-10-30 12:02 ` Eric W. Biederman
2014-10-30 12:02 ` Eric W. Biederman
2014-10-30 13:48 ` Andy Lutomirski
2014-10-30 13:48 ` Andy Lutomirski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='m2u70q$gtl$2@ger.gmane.org' \
--to=eternaleye@gmail.com \
--cc=linux-api@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.