Synopsis

numad bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated numad packages that fix two bugs and add one enhancement are now
available for Red Hat Enterprise Linux 6.

Description

The numad packages provide a daemon for NUMA (Non-Uniform Memory Architecture)
systems, monitors NUMA characteristics and manages placement of processes and
memory to minimize memory latency. The packages also provide an interface that
can be used to query the numad daemon for the best manual placement of an
application.

This update fixes the following bugs:

• When all CPUs were busy, the numad daemon was too reluctant to balance
  processes across nodes even though it would have resulted in significantly
  better application and system performance. With this update, numad is more
  aggressive about moving processes even when all CPUs are busy. As a result,
  overall system performance has improved significantly. (BZ#987563)
  
• Previously, it was not possible to set the system's hugepage
  "scan_sleep_millisecs" parameter. As a consequence, NUMA performance was damaged
  when process memory was migrated across nodes. The underlying code has been
  changed to accept the new "-H" option to specify "scan_sleep_millisecs", thus
  fixing the bug. The user can now set the value to fine-tune the numad's
  performance. (BZ#987559)
  

This update also adds the following enhancement:

• A configuration file for the logrotate tool has been added to be fully
  supported by Red Hat Enterprise Linux 6. (BZ#913546)
  

All users of numad are advised to upgrade to these updated packages, which fix
these bugs and add this enhancement.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386

Fixes

• BZ - 913546 - Logrotate config missing
• BZ - 987559 - Allow NUMAD to change hugepage scan_sleep_millisecs parameter
• BZ - 987563 - numad too reluctant to balance loads when all CPUs busy

CVEs

(none)

References

(none)

Red Hat Enterprise Linux Server 6

SRPM
numad-0.5-9.20130814git.el6.src.rpm	SHA-256: 874f9ea1ccde94a451b811347ef19d8d15099017eeee3ba0e7fae22a10659245
x86_64
numad-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: 28b1bccbada20fad18b021618851df74202778654f229388ece2206cf625b847
numad-debuginfo-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: b60d1a60678c405df4820ec9ae5df0307f7365604d7e494da4aa7389d14fd0de
i386
numad-0.5-9.20130814git.el6.i686.rpm	SHA-256: 40322a5e56ae2ffe3690aee98d4b484a3fb72b491efea7f1eba2cb3357f3498d
numad-debuginfo-0.5-9.20130814git.el6.i686.rpm	SHA-256: 92971593f0b5ba50b66f96671f9b84a3953a4fd855bdb64ce041b8f1d5005196

Red Hat Enterprise Linux Workstation 6

SRPM
numad-0.5-9.20130814git.el6.src.rpm	SHA-256: 874f9ea1ccde94a451b811347ef19d8d15099017eeee3ba0e7fae22a10659245
x86_64
numad-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: 28b1bccbada20fad18b021618851df74202778654f229388ece2206cf625b847
numad-debuginfo-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: b60d1a60678c405df4820ec9ae5df0307f7365604d7e494da4aa7389d14fd0de
i386
numad-0.5-9.20130814git.el6.i686.rpm	SHA-256: 40322a5e56ae2ffe3690aee98d4b484a3fb72b491efea7f1eba2cb3357f3498d
numad-debuginfo-0.5-9.20130814git.el6.i686.rpm	SHA-256: 92971593f0b5ba50b66f96671f9b84a3953a4fd855bdb64ce041b8f1d5005196

Red Hat Enterprise Linux Desktop 6

SRPM
numad-0.5-9.20130814git.el6.src.rpm	SHA-256: 874f9ea1ccde94a451b811347ef19d8d15099017eeee3ba0e7fae22a10659245
x86_64
numad-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: 28b1bccbada20fad18b021618851df74202778654f229388ece2206cf625b847
numad-debuginfo-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: b60d1a60678c405df4820ec9ae5df0307f7365604d7e494da4aa7389d14fd0de
i386
numad-0.5-9.20130814git.el6.i686.rpm	SHA-256: 40322a5e56ae2ffe3690aee98d4b484a3fb72b491efea7f1eba2cb3357f3498d
numad-debuginfo-0.5-9.20130814git.el6.i686.rpm	SHA-256: 92971593f0b5ba50b66f96671f9b84a3953a4fd855bdb64ce041b8f1d5005196

Red Hat Enterprise Linux for Power, big endian 6

SRPM
numad-0.5-9.20130814git.el6.src.rpm	SHA-256: 874f9ea1ccde94a451b811347ef19d8d15099017eeee3ba0e7fae22a10659245
ppc64
numad-0.5-9.20130814git.el6.ppc64.rpm	SHA-256: f4dcc6250b270ca6ad19e02c9fa53ef6ee1b6b643e46a9769aea643cfed0911f
numad-debuginfo-0.5-9.20130814git.el6.ppc64.rpm	SHA-256: 767b22bddfd17e1a4033b07ecc7ac2184d5cc19af2f3c5814a16fd7728c9e55a

Red Hat Enterprise Linux for Scientific Computing 6

SRPM
numad-0.5-9.20130814git.el6.src.rpm	SHA-256: 874f9ea1ccde94a451b811347ef19d8d15099017eeee3ba0e7fae22a10659245
x86_64
numad-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: 28b1bccbada20fad18b021618851df74202778654f229388ece2206cf625b847
numad-debuginfo-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: b60d1a60678c405df4820ec9ae5df0307f7365604d7e494da4aa7389d14fd0de

Red Hat Enterprise Linux Server from RHUI 6

SRPM
numad-0.5-9.20130814git.el6.src.rpm	SHA-256: 874f9ea1ccde94a451b811347ef19d8d15099017eeee3ba0e7fae22a10659245
x86_64
numad-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: 28b1bccbada20fad18b021618851df74202778654f229388ece2206cf625b847
numad-debuginfo-0.5-9.20130814git.el6.x86_64.rpm	SHA-256: b60d1a60678c405df4820ec9ae5df0307f7365604d7e494da4aa7389d14fd0de
i386
numad-0.5-9.20130814git.el6.i686.rpm	SHA-256: 40322a5e56ae2ffe3690aee98d4b484a3fb72b491efea7f1eba2cb3357f3498d
numad-debuginfo-0.5-9.20130814git.el6.i686.rpm	SHA-256: 92971593f0b5ba50b66f96671f9b84a3953a4fd855bdb64ce041b8f1d5005196