mirror of
https://github.com/openvswitch/ovs
synced 2025-10-25 15:07:05 +00:00
9d232a6d57
Often, it can be quite difficult to debug performance issues in Open vSwitch. Typically one needs to run something like gprof, but that requires rebuilding and installing on the affected system which is often problematic. This patch adds a light weight profiling solution which can be used in these situations. The ovs-appctl backtrace command prints out backtraces taken at 100 millisecond intervals over a 5 second period of time. It is currently only supported on systems which have the execinfo library and enable time caching. Signed-off-by: Ethan Jackson <ethan@nicira.com>
122 lines
3.5 KiB
Plaintext
122 lines
3.5 KiB
Plaintext
# Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at:
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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AC_PREREQ(2.64)
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AC_INIT(openvswitch, 1.8.90, ovs-bugs@openvswitch.org)
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AC_CONFIG_SRCDIR([datapath/datapath.c])
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AC_CONFIG_MACRO_DIR([m4])
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AC_CONFIG_AUX_DIR([build-aux])
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AC_CONFIG_HEADERS([config.h])
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AC_CONFIG_TESTDIR([tests])
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AM_INIT_AUTOMAKE
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AC_PROG_CC
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AM_PROG_CC_C_O
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AC_PROG_CPP
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AC_PROG_RANLIB
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AC_PROG_MKDIR_P
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AC_PROG_FGREP
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AC_ARG_VAR([PERL], [path to Perl interpreter])
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AC_PATH_PROG([PERL], perl, no)
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if test "$PERL" = no; then
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AC_MSG_ERROR([Perl interpreter not found in $PATH or $PERL.])
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fi
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AM_MISSING_PROG([AUTOM4TE], [autom4te])
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AC_USE_SYSTEM_EXTENSIONS
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AC_C_BIGENDIAN
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AC_SYS_LARGEFILE
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AC_SEARCH_LIBS([pow], [m])
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AC_SEARCH_LIBS([clock_gettime], [rt])
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AC_SEARCH_LIBS([timer_create], [rt])
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AC_SEARCH_LIBS([pcap_open_live], [pcap])
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OVS_CHECK_ESX
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OVS_CHECK_COVERAGE
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OVS_CHECK_NDEBUG
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OVS_CHECK_NETLINK
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OVS_CHECK_OPENSSL
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OVS_CHECK_LOGDIR
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OVS_CHECK_PYTHON
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OVS_CHECK_PYUIC4
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OVS_CHECK_OVSDBMONITOR
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OVS_CHECK_DOT
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OVS_CHECK_IF_PACKET
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OVS_CHECK_IF_DL
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OVS_CHECK_STRTOK_R
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AC_CHECK_MEMBERS([struct stat.st_mtim.tv_nsec, struct stat.st_mtimensec],
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[], [], [[#include <sys/stat.h>]])
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AC_CHECK_FUNCS([mlockall strnlen strsignal getloadavg statvfs setmntent])
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AC_CHECK_HEADERS([mntent.h sys/statvfs.h linux/types.h execinfo.h])
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OVS_CHECK_PKIDIR
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OVS_CHECK_RUNDIR
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OVS_CHECK_DBDIR
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OVS_CHECK_BACKTRACE
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OVS_CHECK_MALLOC_HOOKS
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OVS_CHECK_VALGRIND
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OVS_CHECK_SOCKET_LIBS
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OVS_CHECK_LINKER_SECTIONS
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OVS_CHECK_XENSERVER_VERSION
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OVS_CHECK_GROFF
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OVS_CHECK_BRCOMPAT
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OVS_CHECK_GNU_MAKE
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OVS_ENABLE_OPTION([-Wall])
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OVS_ENABLE_OPTION([-Wno-sign-compare])
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OVS_ENABLE_OPTION([-Wpointer-arith])
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OVS_ENABLE_OPTION([-Wdeclaration-after-statement])
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OVS_ENABLE_OPTION([-Wformat-security])
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OVS_ENABLE_OPTION([-Wswitch-enum])
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OVS_ENABLE_OPTION([-Wunused-parameter])
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OVS_ENABLE_OPTION([-Wstrict-aliasing])
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OVS_ENABLE_OPTION([-Wbad-function-cast])
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OVS_ENABLE_OPTION([-Wcast-align])
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OVS_ENABLE_OPTION([-Wstrict-prototypes])
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OVS_ENABLE_OPTION([-Wold-style-definition])
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OVS_ENABLE_OPTION([-Wmissing-prototypes])
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OVS_ENABLE_OPTION([-Wmissing-field-initializers])
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OVS_ENABLE_OPTION([-Wno-override-init])
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OVS_CONDITIONAL_CC_OPTION([-Wno-unused], [HAVE_WNO_UNUSED])
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OVS_CONDITIONAL_CC_OPTION([-Wno-unused-parameter], [HAVE_WNO_UNUSED_PARAMETER])
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OVS_ENABLE_WERROR
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OVS_ENABLE_SPARSE
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AC_ARG_VAR(KARCH, [Kernel Architecture String])
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AC_SUBST(KARCH)
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OVS_CHECK_LINUX
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AC_CONFIG_FILES([Makefile
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datapath/Makefile
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datapath/linux/Kbuild
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datapath/linux/Makefile
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datapath/linux/Makefile.main
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tests/atlocal])
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dnl This makes sure that include/openflow gets created in the build directory.
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AC_CONFIG_COMMANDS([include/openflow/openflow.h.stamp])
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AC_CONFIG_COMMANDS([ovsdb/ovsdbmonitor/dummy], [:])
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AC_CONFIG_COMMANDS([utilities/bugtool/dummy], [:])
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AM_CONDITIONAL([LINUX_DATAPATH], [test "$HAVE_NETLINK" = yes && test "$ESX" = no])
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if test "$HAVE_NETLINK" = yes && test "$ESX" = no; then
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AC_DEFINE([LINUX_DATAPATH], [1], [System uses the linux datapath module.])
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fi
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AC_OUTPUT
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