32a7757a03
irqbalance has been broken for a long time. Its ability to properly detect msi irqs and to correctly identify interrupt types (net vs. storage vs. other, etc), has been based on some tenuous string comparison logic that was easily broken by administrative name changes for interfaces. I've recently submitted this patch: https://lkml.org/lkml/2011/9/19/176 Which lets us use sysfs exclusively for finding device interrupts, which in turns lets us definitavely identify irq types (legacy pci vs. msi), as well as properly classifying them using the pci device class value. Additionally, this patch rips out the code that attemtps to bias interrupt count volumes using network statistics, since theres no sane way to be certain a single network interrupt is responsible for the number of packets received on a given interface. Workload computation is now done on soley on irq count. This may change in the future, adding /proc/stat irq and softirq time to the biasing mechanism. Note that without the above kernel change, this doesn't work right. Irqbalance contains a self check in which it identifies MSI interrupts in /proc/interrupts still. If it sees MSI irqs in /proc/interrupts, but none in sysfs, then it will issue a loud warning about irqs being missclassified until the kernel is updated. Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
41 lines
1.5 KiB
Makefile
41 lines
1.5 KiB
Makefile
# Makefile.am --
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# Copyright 2009 Red Hat Inc., Durham, North Carolina.
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# All Rights Reserved.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Authors:
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# Steve Grubb <sgrubb@redhat.com>
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#
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AUTOMAKE_OPTIONS = no-dependencies
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EXTRA_DIST = README INSTALL COPYING autogen.sh cap-ng.m4
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INCLUDES = -I${top_srcdir}
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LIBS = $(CAPNG_LDADD) $(GLIB_LIBS) -lnuma
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AM_CFLAGS = -g -Os -W -Wall -Wshadow -Wformat -Wundef $(GLIB_CFLAGS) -D_GNU_SOURCE
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noinst_HEADERS = bitmap.h constants.h cpumask.h irqbalance.h non-atomic.h \
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types.h
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sbin_PROGRAMS = irqbalance
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irqbalance_SOURCES = activate.c bitmap.c classify.c cputree.c irqbalance.c \
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irqlist.c numa.c placement.c powermode.c procinterrupts.c
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dist_man_MANS = irqbalance.1
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CONFIG_CLEAN_FILES = debug*.list config/*
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clean-generic:
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rm -rf autom4te*.cache
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rm -f *.rej *.orig *~
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