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...> New processes aren't created until client_limit is reached in all the existing processes. When there are multiple processes they're all listening for new connections and whichever happens to be fastest gets it. Related to this, I'm thinking about implementing SO_REUSEPORT (https://lwn.net/Articles/542629/ <https://lwn.net/Articles/542629/> <https://lwn.net/Articles/542629/ <https://lwn.net/Articles/542629/>>) soon that would change the behavior a bit. Although its main purposes would be as a workaround to allow Dovecot restarts to work even though some of the o...

...l and political jousting, and the great times at conferences and summits! I wish you all the best of luck! Or to quote Douglas Adams: "So long and thanks for all the fish!" Cheers, Dan Magenheimer The Transcendent Memory ("tmem") guy Tmem-related historical webography: http://lwn.net/Articles/454795/ http://lwn.net/Articles/475681/ http://lwn.net/Articles/545244/ https://oss.oracle.com/projects/tmem/ http://www.linux-kvm.org/wiki/images/d/d7/TmemNotVirt-Linuxcon2011-Final.pdf http://lwn.net/Articles/465317/ http://lwn.net/Articles/340080/ http://lwn.net/Articles/38609...

...ur email with [ATTEND] so there''s less chance of it getting lost in the large mail pile. Presentations are allowed to guide discussion, but are strongly discouraged. There will be no recording or audio bridge. However, written minutes will be published as in previous years: 2012: http://lwn.net/Articles/490114/ http://lwn.net/Articles/490501/ 2011: http://lwn.net/Articles/436871/ http://lwn.net/Articles/437066/ 2010: http://lwn.net/Articles/399148/ http://lwn.net/Articles/399313/ http://lwn.net/Articles/400589/ 2009: http://lwn.net/Articles/327601/ http://lwn.net/Articles/3...

Is here: https://lwn.net/Articles/475592/ (sorry if it's not available to non-subscribers yet). Really good overview of our current status. Jeremy.

...and packagers as a result of a temporary dip in the volunteer resources available to them (caused by an unfortunate set of co-incidences, though we haven't heard the details yet)." and "This has slowed the Samba effort a bit." The full text of this news can be seen at http://lwn.net/ So, what's up? What needs to be done? -Don

Hello, Just to follow up on this, we've hit over 16k (default client limit here) hibernated sessions: --- dovecot 119157 0.1 0.0 63404 56140 ? S Apr01 62:05 dovecot/imap-hibernate [11291 connections] dovecot 877825 0.2 0.0 28512 21224 ? S Apr23 1:34 dovecot/imap-hibernate [5420 connections] --- No issues other than the minor bug I reported, CPU usage is

Hello, I read an article on the site lwn.net (http://lwn.net/Articles/397034/). My question (a newbie question !) is : where may I find these packages xulrunner-1.9.2.7-2.el5.x86_64.rpm and firefox-3.6.7-2.el5.centos.x86_64.rpm ? Regards, Yann -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lis...

I found this bug fix report http://lwn.net/Articles/616130/ I thought we were not able to get Chromium for C6. Apparently it looks like the work has been already done. Is it possible we (hi Johnny) can get this package into C6? This would be a wonderful addition to CentOS 6. Please and thank you.

Hello Tom, On the page 'http://lwn.net/Articles/313328/' i found info about changes in 'cls_flow.c' in kernel-2.6.29: net/sched/cls_flow.c | 4 +- and may be now it will work properly to everyone's entertainment. Thank you, Alex --- Прогноз погоды ТУТ - http://pogoda.tut.by --...

...file | 3 + > drivers/vhost/blk.c | 510 +++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 526 insertions(+) > create mode 100644 drivers/vhost/blk.c > Hi: Thanks for the patches. This is not the first attempt for having vhost-blk: - Badari's version: https://lwn.net/Articles/379864/ - Asias' version: https://lwn.net/Articles/519880/ It's better to describe the differences (kiocb vs bio? performance?). E.g if my memory is correct, Asias said it doesn't give much improvement compared with userspace qemu. And what's more important, I beli...

...file | 3 + > drivers/vhost/blk.c | 510 +++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 526 insertions(+) > create mode 100644 drivers/vhost/blk.c > Hi: Thanks for the patches. This is not the first attempt for having vhost-blk: - Badari's version: https://lwn.net/Articles/379864/ - Asias' version: https://lwn.net/Articles/519880/ It's better to describe the differences (kiocb vs bio? performance?). E.g if my memory is correct, Asias said it doesn't give much improvement compared with userspace qemu. And what's more important, I beli...

...t;>> >>> /usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/linux/fence.h >>> /usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/linux/seqno-fence.h >>> /usr/src/kernels/3.10.0-514.26.2.el7.centos.plus.x86_64/include/trace/events/fenhttps://lwn.net/Articles/685049/ce.h >>> /usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/linux/dma-fence.h >>> /usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/linux/seqno-fence.h >>> /usr/src/kernels/3.10.0-693.2.2.el7.centos.plus.x86_64/include/trace/ev...

I found at: http://lwn.net/Articles/212852/ * Thu Nov 23 2006 Harald Hoyer <harald at redhat.com> - 0.7.0-11 - fixed gnome-obex-send - removed gnome-bluetooth-manager And there is a 0.9 floating around that has it and more. And I really want to get a bluetooth manager.... :(

...arning when I start my > > KVM guest on s390 with virtio balloon enabled: > > The deeper problem is that virtio_ccw_get_config just silently fails on > OOM. > > Neither get_config nor set_config are expected to fail. AFAIK this is currently not a problem. According to http://lwn.net/Articles/627419/ these kmalloc calls never fail because they allocate less than a page. Thomas

...arning when I start my > > KVM guest on s390 with virtio balloon enabled: > > The deeper problem is that virtio_ccw_get_config just silently fails on > OOM. > > Neither get_config nor set_config are expected to fail. AFAIK this is currently not a problem. According to http://lwn.net/Articles/627419/ these kmalloc calls never fail because they allocate less than a page. Thomas

...> Isn't this premature optimization? I really don't like adding things > > like this without some numbers to show it's worth it. > > I don't think it's premature given this optimization technique is > already being deployed elsewhere, see: > > https://lwn.net/Articles/774347/ For one this one was backed by numbers, and second after feedback from Linux we switched to the NULL pointer check instead.

...> Isn't this premature optimization? I really don't like adding things > > like this without some numbers to show it's worth it. > > I don't think it's premature given this optimization technique is > already being deployed elsewhere, see: > > https://lwn.net/Articles/774347/ For one this one was backed by numbers, and second after feedback from Linux we switched to the NULL pointer check instead.

Greetings, I was reading the LWN article from today (free to non-subscribers next Thursday). Here's a subscriber link for those who might want to see it now: CentOS and Red Hat - http://lwn.net/SubscriberLink/592723/485ea802859f6c36/ I saw that Xen was mentioned as an area where CentOS went beyond RHEL with CentOS 6... and b...

This allows users to start an independent instance of unicorn on a the same port as a running unicorn (as long as both instances use :reuseport). ref: https://lwn.net/Articles/542629/ --- lib/unicorn/configurator.rb | 19 +++++++++++++++++++ lib/unicorn/socket_helper.rb | 30 ++++++++++++++++++++++-------- test/unit/test_socket_helper.rb | 8 ++++++++ 3 files changed, 49 insertions(+), 8 deletions(-) diff --git a/lib/unicorn/configurator.rb b/lib/u...

On Mon, Feb 17, 2020 at 02:08:03PM +0800, Jason Wang wrote: > I thought you were copied in the patch [1], maybe we can move vhost related > discussion there to avoid confusion. > > [1] https://lwn.net/Articles/811210/ Wow, that is .. confusing. So this is supposed to duplicate the uAPI of vhost-user? But it is open coded and duplicated because .. vdpa? > So it's cheaper and simpler to introduce a new bus instead of refactoring a > well known bus and API where brunches of drivers...