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Neil Horman 9f7b1a9315 fix balancing when numa information isn't available 
Discovered a bug in which, when numa isn't available we failed to assign
the unspecified node to the device tree, leading us to not balance any
interrupts.  Make sure it gets added so irq get parsed down through the
tree to the proper topology node

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
2019-02-26 09:35:38 -05:00
misc fix socket path creation 2019-01-14 09:58:52 -05:00
tests Add make check targets 2018-05-14 14:14:02 -04:00
ui fix socket path creation 2019-01-14 09:58:52 -05:00
.gitignore irqbalance: Misc build enhancements 2012-03-26 10:19:00 -04:00
.travis.yml Dump the log to the console 2018-05-14 14:27:03 -04:00
activate.c remove affinity_hint infrastructure 2016-04-26 14:55:55 -04:00
AUTHORS Add autotools scripts to irqbalance 2009-09-01 15:50:39 +00:00
autogen.sh Make sure the m4 directory is created in autogen.sh 2012-06-20 11:45:37 -04:00
bitmap.c import __bitmap_parselist from Linux kernel 2015-03-12 17:47:00 -04:00
bitmap.h import __bitmap_parselist from Linux kernel 2015-03-12 17:47:00 -04:00
classify.c policyscript: ignore non-executable files when specifying a directory 2018-10-12 17:55:22 +08:00
configure.ac Update configure.ac to print latest version 2018-10-27 05:36:59 -04:00
constants.h Compute load in nanoseconds 2013-02-18 14:08:57 -05:00
COPYING Adding missing configure files 2009-10-02 18:22:21 +00:00
cpumask.h fix cpulist_parse definition to match bitmap_parselist and kernel 2015-03-12 17:47:00 -04:00
cputree.c fix balancing when numa information isn't available 2019-02-26 09:35:38 -05:00
irqbalance.1 Update document for option --banmod and --deepestcache 2018-11-09 17:34:59 +08:00
irqbalance.c Remove hintpolicy related options in help message 2018-11-09 17:34:56 +08:00
irqbalance.h fix socket path creation 2019-01-14 09:58:52 -05:00
irqlist.c Fix min_load to pick actual min load across all objects 2017-11-15 07:33:47 -05:00
Makefile.am Add make check targets 2018-05-14 14:14:02 -04:00
non-atomic.h initial import 2006-12-09 15:59:16 +00:00
numa.c Fix ambiguous parsing of *node* entries in /sys. 2018-10-18 11:30:34 -07:00
placement.c fix balancing when numa information isn't available 2019-02-26 09:35:38 -05:00
procinterrupts.c procinterrupts: check xen-dyn-event more flexible 2018-10-18 21:50:48 +08:00
README.md Adding Travis bagde 2017-08-04 13:32:29 +02:00
types.h Types: clean out unused variables from irq_info struct 2017-08-08 14:35:31 -04:00

README.md

What is Irqbalance

Irqbalance is a daemon to help balance the cpu load generated by interrupts across all of a systems cpus. Irqbalance identifies the highest volume interrupt sources, and isolates them to a single unique cpu, so that load is spread as much as possible over an entire processor set, while minimizing cache miss rates for irq handlers.

Building and Installing Build Status

./autogen.sh
./configure [options]
make
make install

Developing Irqbalance

Irqbalance is currently hosted on github, and so developers are welcome to use the issue/pull request/etc infrastructure found there. However, most development discussions take place on the irqbalance mailing list, which can be subscribed to at: http://lists.infradead.org/mailman/listinfo/irqbalance

New Developers are encouraged to use this mailing list to discuss ideas and propose patches.

Bug reporting

When something goes wrong, feel free to send us bugreport by one of the ways described above. Your report should include:

  • Irqbalance version you've been using (or commit hash)
  • /proc/interrupts output
  • irqbalance --debug output
  • content of smp_affinity files - can be obtained by e.g.: $ for i in $(seq 0 300); do grep . /proc/irq/$i/smp_affinity /dev/null 2>/dev/null; done
  • your hw hierarchy - e.g. lstopo-no-graphics output