From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: linux-kernel@vger.kernel.org, lttng-dev@lists.lttng.org,
rp@svcs.cs.pdx.edu
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
Stephen Hemminger <stephen@networkplumber.org>,
Alan Stern <stern@rowland.harvard.edu>,
Lai Jiangshan <jiangshanlai@gmail.com>
Subject: [RELEASE] Userspace RCU 0.8.11, 0.9.5, 0.10.1
Date: Tue, 23 Jan 2018 20:34:10 +0000 (UTC) [thread overview]
Message-ID: <2066090908.8090.1516739650023.JavaMail.zimbra@efficios.com> (raw)
Hi,
This is a set of releases for the stable branches of the Userspace
RCU library.
liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This
data synchronization library provides read-side access which scales
linearly with the number of cores. It does so by allowing multiple
copies of a given data structure to live at the same time, and by
monitoring the data structure accesses to detect grace periods after
which memory reclamation is possible.
liburcu-cds provides efficient data structures based on RCU and
lock-free algorithms. Those structures include hash tables, queues,
stacks, and doubly-linked lists.
On versions 0.8 and 0.9, the fixes introduced target pretty much only
the Cygwin port.
On 0.10, the use of SHARED membarrier by liburcu-bp is removed,
because this kernel system call sometimes takes between 10-100ms
to execute, which is not acceptable for some workloads. Note:
a new PRIVATE_EXPEDITED membarrier is introduced in kernel 4.14,
and the next version of liburcu will use it when available [1].
Changelog:
2018-01-23 Userspace RCU 0.8.11
* Fix: don't use overlapping mmap mappings on Cygwin
* Tests fix: add missing Cygwin thread id
* Fix: assignment from incompatible pointer type warnings
* Tests fix: unused variable warnings
2018-01-23 Userspace RCU 0.9.5
* Fix: don't use overlapping mmap mappings on Cygwin
* Fix: don't use membarrier SHARED syscall command in liburcu-bp
* Tests fix: add missing Cygwin thread id
* Fix: assignment from incompatible pointer type warnings
* Tests fix: unused variable warnings
2018-01-23 Userspace RCU 0.10.1
* Fix: don't use overlapping mmap mappings on Cygwin
* Fix: don't use membarrier SHARED syscall command in liburcu-bp
* Tests fix: add missing Cygwin thread id
* Fix: assignment from incompatible pointer type warnings
* Tests fix: unused variable warnings
* Fix: add missing m68k headers to dist
[1] http://lttng.org/blog/2018/01/15/membarrier-system-call-performance-and-userspace-rcu/
Project website: http://liburcu.org
Git repository: git://git.liburcu.org/urcu.git
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
reply other threads:[~2018-01-23 20:34 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=2066090908.8090.1516739650023.JavaMail.zimbra@efficios.com \
--to=mathieu.desnoyers@efficios.com \
--cc=jiangshanlai@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=lttng-dev@lists.lttng.org \
--cc=paulmck@linux.vnet.ibm.com \
--cc=rp@svcs.cs.pdx.edu \
--cc=stephen@networkplumber.org \
--cc=stern@rowland.harvard.edu \
/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.