README: Update for the 2015.09 release2015.09

Signed-off-by: Gary S. Robertson <gary.robertson@linaro.org>

1 files changed, 12 insertions, 13 deletions

diff --git a/README.textile b/README.textile
index 127f968..d6878c9 100644
--- a/README.textile
+++ b/README.textile
@@ -1,21 +1,20 @@
 p. The Linaro Networking Group (LNG) is pleased to announce the
-2015.08 release of the Linaro Networking Kernel.
+2015.09 release of the Linaro Networking Kernel.
 
 h4. Interesting changes include:
 
-* The LNG v3.14 kernel branches have been superseded by the LNG v3.18 branches and are no longer being updated.
-* The LNG v3.18 kernel branches have been updated with the July 2015 releases of the respective LSK v3.18 branches.
-* Both LNG v3.18 branches are now capable of achieving extended periods of full tickless (i.e. NO_HZ_FULL) isolation when given the proper initialization.
-* Two new LNG v4.1 branches have been added, since the RT patch set is now available for the 4.1 kernel.
-* The new LNG v4.1 branches are based on corresponding LSK v4.1 branches, but with patches added to enhance NO_HZ_FULL capabilities.
-* The linux-linaro-lng-v4.1 (non-RT) branch is now capable of achieving extended periods of full tickless isolation.
+* The LNG v3.18 kernel branches have been updated with the August 2015 releases of the respective LSK v3.18 branches.
+* The LNG v4.1 kernel branches have been updated with the August 2015 releases of the corresponding LSK v4.1 branches.
+* Patches by Christian Ziethen have added enhanced support for using both the 3.18 and 4.1 LNG kernels as KVM hosts or guests.
+* Patches by Yogesh Tillu have added enhanced perf counter access from userspace in both the 3.18 and 4.1 LNG kernels.
+* Configuration fragments have been updated in both the 3.18 and 4.1 kernels with merges of the latest fragments from Linaro kernel/configs.git.
 
 <br>The release is also available via tags in the LNG git repository:
 
-bc. git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-3.18.17-2015.08
-git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-preempt-rt-3.18.16-2015.08
-git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-4.1.4-2015.08
-git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-preempt-rt-4.1.3-2015.08
+bc. git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-3.18.20-2015.09
+git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-preempt-rt-3.18.16-2015.09
+git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-4.1.5-2015.09
+git://git.linaro.org/kernel/linux-linaro-lng.git linux-lng-preempt-rt-4.1.5-2015.09
 
 More information on Linaro Networking Group Kernels is available at
 "http://wiki.linaro.org/LNG/Engineering/Foundational":http://wiki.linaro.org/LNG/Engineering/Foundational
@@ -24,11 +23,11 @@ h4. Fixed in this release
 
 h4. Known issues
 
-NO_HZ_FULL isolation performance has been significantly improved in both branches of the LNG v3.18 kernels, and also in the 'non-RT' version of the LNG v4.1 kernel.  However, NO_HZ_FULL isolation continues to be a 'work in progress' and still is not fully functional in the LNG v4.1 'RT' kernel.
+Contrary to statements in last month's release notes, NO_HZ_FULL isolation is not fully functional in either branch of the LNG v3.18 kernels, or in the LNG v4.1 'RT' kernel.
 
 Extended periods of isolation presently come at the expense of CPU accounting accuracy on the isolated cores while running in 'full tickless' mode.
 
-CPU cores designated for use as 'full tickless' isolated cores are excluded from CPU load balancing, so CPU load balancing is effectively disabled on the LNG 3.18 kernels as currently configured.  This is due to the compile-time configuration setting of CONFIG_NO_HZ_FULL_ALL=y, coupled with the fact that the allocation of CPUs as either 'nohz_full' or 'housekeeping' cores is statically defined at boot time.  A work-around for the 3.18 kernels would be to configure the kernel with CONFIG_NO_HZ_FULL=y and CONFIG_NO_HZ_FULL_ALL=n, and then to use boot command line "nohz_full=..." CPU list parameter to apportion CPU resources appropriately.  But for testing purposes the most convenient NO_HZ_FULL configuration is the one used in our kernel builds.
+CPU cores designated for use as 'full tickless' isolated cores are excluded from CPU load balancing, so CPU load balancing is effectively disabled on the LNG 3.18 kernels as currently configured.  This is due to the compile-time configuration setting of CONFIG_NO_HZ_FULL_ALL=y, coupled with the fact that the allocation of CPUs as either 'nohz_full' or 'housekeeping' cores is statically defined at boot time.  A work-around would be to configure the kernel with CONFIG_NO_HZ_FULL=y and CONFIG_NO_HZ_FULL_ALL=n, and then to use boot command line "nohz_full=..." CPU list parameter to apportion CPU resources appropriately.  But for testing purposes the most convenient NO_HZ_FULL configuration is the one used in our kernel builds.
 
 h4. Feedback and Support