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-rw-r--r--tools/tracing/latency/.gitignore5
-rw-r--r--tools/tracing/latency/Build1
-rw-r--r--tools/tracing/latency/Makefile105
-rw-r--r--tools/tracing/latency/Makefile.config30
-rw-r--r--tools/tracing/latency/latency-collector.c8
-rw-r--r--tools/tracing/rtla/.gitignore7
-rw-r--r--tools/tracing/rtla/Build1
-rw-r--r--tools/tracing/rtla/Makefile217
-rw-r--r--tools/tracing/rtla/Makefile.config47
-rw-r--r--tools/tracing/rtla/Makefile.rtla80
-rw-r--r--tools/tracing/rtla/Makefile.standalone26
-rw-r--r--tools/tracing/rtla/sample/timerlat_load.py74
-rw-r--r--tools/tracing/rtla/src/Build11
-rw-r--r--tools/tracing/rtla/src/timerlat_hist.c16
-rw-r--r--tools/tracing/rtla/src/timerlat_top.c14
15 files changed, 465 insertions, 177 deletions
diff --git a/tools/tracing/latency/.gitignore b/tools/tracing/latency/.gitignore
index 0863960761..2bb8e60f7f 100644
--- a/tools/tracing/latency/.gitignore
+++ b/tools/tracing/latency/.gitignore
@@ -1,2 +1,5 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: GPL-2.0-only
latency-collector
+fixdep
+feature
+FEATURE-DUMP
diff --git a/tools/tracing/latency/Build b/tools/tracing/latency/Build
new file mode 100644
index 0000000000..0ce65ea72b
--- /dev/null
+++ b/tools/tracing/latency/Build
@@ -0,0 +1 @@
+latency-collector-y += latency-collector.o
diff --git a/tools/tracing/latency/Makefile b/tools/tracing/latency/Makefile
index 40c4ddaf8b..6518b03e05 100644
--- a/tools/tracing/latency/Makefile
+++ b/tools/tracing/latency/Makefile
@@ -1,24 +1,93 @@
-# SPDX-License-Identifier: GPL-2.0
-# Makefile for vm tools
-#
-VAR_CFLAGS := $(shell pkg-config --cflags libtracefs 2>/dev/null)
-VAR_LDLIBS := $(shell pkg-config --libs libtracefs 2>/dev/null)
+# SPDX-License-Identifier: GPL-2.0-only
-TARGETS = latency-collector
-CFLAGS = -Wall -Wextra -g -O2 $(VAR_CFLAGS)
-LDFLAGS = -lpthread $(VAR_LDLIBS)
+ifeq ($(srctree),)
+ srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+ srctree := $(patsubst %/,%,$(dir $(srctree)))
+ srctree := $(patsubst %/,%,$(dir $(srctree)))
+endif
-all: $(TARGETS)
+include $(srctree)/tools/scripts/Makefile.include
-%: %.c
- $(CC) $(CFLAGS) -o $@ $< $(LDFLAGS)
+# O is an alias for OUTPUT
+OUTPUT := $(O)
-clean:
- $(RM) latency-collector
+ifeq ($(OUTPUT),)
+ OUTPUT := $(CURDIR)
+else
+ # subdir is used by the ../Makefile in $(call descend,)
+ ifneq ($(subdir),)
+ OUTPUT := $(OUTPUT)/$(subdir)
+ endif
+endif
+
+ifneq ($(patsubst %/,,$(lastword $(OUTPUT))),)
+ OUTPUT := $(OUTPUT)/
+endif
+
+LATENCY-COLLECTOR := $(OUTPUT)latency-collector
+LATENCY-COLLECTOR_IN := $(LATENCY-COLLECTOR)-in.o
+
+export CC := gcc
+export LD := ld
+export AR := ar
+export PKG_CONFIG := pkg-config
+
+FEATURE_TESTS := libtraceevent
+FEATURE_TESTS += libtracefs
+FEATURE_DISPLAY := libtraceevent
+FEATURE_DISPLAY += libtracefs
+
+ifeq ($(V),1)
+ Q =
+else
+ Q = @
+endif
+
+all: $(LATENCY-COLLECTOR)
+
+include $(srctree)/tools/build/Makefile.include
+
+# check for dependencies only on required targets
+NON_CONFIG_TARGETS := clean install
-prefix ?= /usr/local
-sbindir ?= ${prefix}/sbin
+config := 1
+ifdef MAKECMDGOALS
+ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
+ config := 0
+endif
+endif
-install: all
- install -d $(DESTDIR)$(sbindir)
- install -m 755 -p $(TARGETS) $(DESTDIR)$(sbindir)
+ifeq ($(config),1)
+ include $(srctree)/tools/build/Makefile.feature
+ include Makefile.config
+endif
+
+CFLAGS += $(INCLUDES) $(LIB_INCLUDES)
+
+export CFLAGS OUTPUT srctree
+
+$(LATENCY-COLLECTOR): $(LATENCY-COLLECTOR_IN)
+ $(QUIET_LINK)$(CC) $(LDFLAGS) -o $(LATENCY-COLLECTOR) $(LATENCY-COLLECTOR_IN) $(EXTLIBS)
+
+latency-collector.%: fixdep FORCE
+ make -f $(srctree)/tools/build/Makefile.build dir=. $@
+
+$(LATENCY-COLLECTOR_IN): fixdep FORCE
+ make $(build)=latency-collector
+
+INSTALL := install
+MKDIR := mkdir
+STRIP := strip
+BINDIR := /usr/bin
+
+install:
+ @$(MKDIR) -p $(DESTDIR)$(BINDIR)
+ $(call QUIET_INSTALL,latency-collector)$(INSTALL) $(LATENCY-COLLECTOR) -m 755 $(DESTDIR)$(BINDIR)
+ @$(STRIP) $(DESTDIR)$(BINDIR)/latency-collector
+
+clean:
+ $(call QUIET_CLEAN, latency-collector)
+ $(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
+ $(Q)@rm -f latency-collector fixdep FEATURE-DUMP
+ $(Q)rm -rf feature
+.PHONY: FORCE clean install
diff --git a/tools/tracing/latency/Makefile.config b/tools/tracing/latency/Makefile.config
new file mode 100644
index 0000000000..b25e531a1f
--- /dev/null
+++ b/tools/tracing/latency/Makefile.config
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+STOP_ERROR :=
+
+define lib_setup
+ $(eval EXTLIBS += -l$(1))
+ $(eval LIB_INCLUDES += $(shell sh -c "$(PKG_CONFIG) --cflags lib$(1)"))
+endef
+
+$(call feature_check,libtraceevent)
+ifeq ($(feature-libtraceevent), 1)
+ $(call detected,CONFIG_LIBTRACEEVENT)
+ $(call lib_setup,traceevent)
+else
+ STOP_ERROR := 1
+ $(info libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel)
+endif
+
+$(call feature_check,libtracefs)
+ifeq ($(feature-libtracefs), 1)
+ $(call detected,CONFIG_LIBTRACEFS)
+ $(call lib_setup,tracefs)
+else
+ STOP_ERROR := 1
+ $(info libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
+endif
+
+ifeq ($(STOP_ERROR),1)
+ $(error Please, check the errors above.)
+endif
diff --git a/tools/tracing/latency/latency-collector.c b/tools/tracing/latency/latency-collector.c
index cf263fe9de..0fd9c747d3 100644
--- a/tools/tracing/latency/latency-collector.c
+++ b/tools/tracing/latency/latency-collector.c
@@ -935,12 +935,12 @@ static void show_available(void)
}
if (!tracers) {
- warnx("%s", no_tracer_msg);
+ warnx(no_tracer_msg);
return;
}
if (!found) {
- warnx("%s", no_latency_tr_msg);
+ warnx(no_latency_tr_msg);
tracefs_list_free(tracers);
return;
}
@@ -983,7 +983,7 @@ static const char *find_default_tracer(void)
for (i = 0; relevant_tracers[i]; i++) {
valid = tracer_valid(relevant_tracers[i], &notracer);
if (notracer)
- errx(EXIT_FAILURE, "%s", no_tracer_msg);
+ errx(EXIT_FAILURE, no_tracer_msg);
if (valid)
return relevant_tracers[i];
}
@@ -1878,7 +1878,7 @@ static void scan_arguments(int argc, char *argv[])
}
valid = tracer_valid(current_tracer, &notracer);
if (notracer)
- errx(EXIT_FAILURE, "%s", no_tracer_msg);
+ errx(EXIT_FAILURE, no_tracer_msg);
if (!valid)
errx(EXIT_FAILURE,
"The tracer %s is not supported by your kernel!\n", current_tracer);
diff --git a/tools/tracing/rtla/.gitignore b/tools/tracing/rtla/.gitignore
index e9df32419b..293f0dbb0c 100644
--- a/tools/tracing/rtla/.gitignore
+++ b/tools/tracing/rtla/.gitignore
@@ -1 +1,6 @@
-/rtla
+# SPDX-License-Identifier: GPL-2.0-only
+rtla
+rtla-static
+fixdep
+feature
+FEATURE-DUMP
diff --git a/tools/tracing/rtla/Build b/tools/tracing/rtla/Build
new file mode 100644
index 0000000000..6c9d5b36a3
--- /dev/null
+++ b/tools/tracing/rtla/Build
@@ -0,0 +1 @@
+rtla-y += src/
diff --git a/tools/tracing/rtla/Makefile b/tools/tracing/rtla/Makefile
index afd18c678f..b5878be361 100644
--- a/tools/tracing/rtla/Makefile
+++ b/tools/tracing/rtla/Makefile
@@ -1,157 +1,86 @@
-NAME := rtla
-# Follow the kernel version
-VERSION := $(shell cat VERSION 2> /dev/null || make -sC ../../.. kernelversion | grep -v make)
-
-# From libtracefs:
-# Makefiles suck: This macro sets a default value of $(2) for the
-# variable named by $(1), unless the variable has been set by
-# environment or command line. This is necessary for CC and AR
-# because make sets default values, so the simpler ?= approach
-# won't work as expected.
-define allow-override
- $(if $(or $(findstring environment,$(origin $(1))),\
- $(findstring command line,$(origin $(1)))),,\
- $(eval $(1) = $(2)))
-endef
-
-# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
-$(call allow-override,CC,$(CROSS_COMPILE)gcc)
-$(call allow-override,AR,$(CROSS_COMPILE)ar)
-$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
-$(call allow-override,PKG_CONFIG,pkg-config)
-$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
-$(call allow-override,LDCONFIG,ldconfig)
-
-INSTALL = install
-MKDIR = mkdir
-FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \
- -fasynchronous-unwind-tables -fstack-clash-protection
-WOPTS := -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
-
-ifeq ($(CC),clang)
- FOPTS := $(filter-out -ffat-lto-objects, $(FOPTS))
- WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
+# SPDX-License-Identifier: GPL-2.0-only
+
+ifeq ($(srctree),)
+ srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+ srctree := $(patsubst %/,%,$(dir $(srctree)))
+ srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
-TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs)
-
-CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS)
-LDFLAGS := -flto=auto -ggdb $(EXTRA_LDFLAGS)
-LIBS := $$($(PKG_CONFIG) --libs libtracefs)
-
-SRC := $(wildcard src/*.c)
-HDR := $(wildcard src/*.h)
-OBJ := $(SRC:.c=.o)
-DIRS := src
-FILES := Makefile README.txt
-CEXT := bz2
-TARBALL := $(NAME)-$(VERSION).tar.$(CEXT)
-TAROPTS := -cvjf $(TARBALL)
-BINDIR := /usr/bin
-DATADIR := /usr/share
-DOCDIR := $(DATADIR)/doc
-MANDIR := $(DATADIR)/man
-LICDIR := $(DATADIR)/licenses
-SRCTREE := $(or $(BUILD_SRC),$(CURDIR))
-
-# If running from the tarball, man pages are stored in the Documentation
-# dir. If running from the kernel source, man pages are stored in
-# Documentation/tools/rtla/.
-ifneq ($(wildcard Documentation/.*),)
-DOCSRC = Documentation/
+include $(srctree)/tools/scripts/Makefile.include
+
+# O is an alias for OUTPUT
+OUTPUT := $(O)
+
+ifeq ($(OUTPUT),)
+ OUTPUT := $(CURDIR)
else
-DOCSRC = $(SRCTREE)/../../../Documentation/tools/rtla/
+ # subdir is used by the ../Makefile in $(call descend,)
+ ifneq ($(subdir),)
+ OUTPUT := $(OUTPUT)/$(subdir)
+ endif
+endif
+
+ifneq ($(patsubst %/,,$(lastword $(OUTPUT))),)
+ OUTPUT := $(OUTPUT)/
endif
-LIBTRACEEVENT_MIN_VERSION = 1.5
-LIBTRACEFS_MIN_VERSION = 1.3
+RTLA := $(OUTPUT)rtla
+RTLA_IN := $(RTLA)-in.o
-.PHONY: all warnings show_warnings
-all: warnings rtla
+VERSION := $(shell sh -c "make -sC ../../.. kernelversion | grep -v make")
+DOCSRC := ../../../Documentation/tools/rtla/
-TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n")
-ifeq ("$(TEST_LIBTRACEEVENT)", "n")
-WARNINGS = show_warnings
-MISSING_LIBS += echo "** libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher";
-MISSING_PACKAGES += "libtraceevent-devel"
-MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ ";
+FEATURE_TESTS := libtraceevent
+FEATURE_TESTS += libtracefs
+FEATURE_DISPLAY := libtraceevent
+FEATURE_DISPLAY += libtracefs
+
+ifeq ($(V),1)
+ Q =
+else
+ Q = @
endif
-TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n")
-ifeq ("$(TEST_LIBTRACEFS)", "n")
-WARNINGS = show_warnings
-MISSING_LIBS += echo "** libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher";
-MISSING_PACKAGES += "libtracefs-devel"
-MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ ";
+all: $(RTLA)
+
+include $(srctree)/tools/build/Makefile.include
+include Makefile.rtla
+
+# check for dependencies only on required targets
+NON_CONFIG_TARGETS := clean install tarball doc doc_clean doc_install
+
+config := 1
+ifdef MAKECMDGOALS
+ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
+ config := 0
+endif
endif
-define show_dependencies
- @echo "********************************************"; \
- echo "** NOTICE: Failed build dependencies"; \
- echo "**"; \
- echo "** Required Libraries:"; \
- $(MISSING_LIBS) \
- echo "**"; \
- echo "** Consider installing the latest libtracefs from your"; \
- echo "** distribution, e.g., 'dnf install $(MISSING_PACKAGES)' on Fedora,"; \
- echo "** or from source:"; \
- echo "**"; \
- $(MISSING_SOURCE) \
- echo "**"; \
- echo "********************************************"
-endef
-
-show_warnings:
- $(call show_dependencies);
-
-ifneq ("$(WARNINGS)", "")
-ERROR_OUT = $(error Please add the necessary dependencies)
-
-warnings: $(WARNINGS)
- $(ERROR_OUT)
+ifeq ($(config),1)
+ include $(srctree)/tools/build/Makefile.feature
+ include Makefile.config
endif
-rtla: $(OBJ)
- $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS)
-
-static: $(OBJ)
- $(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl
-
-.PHONY: install
-install: doc_install
- $(MKDIR) -p $(DESTDIR)$(BINDIR)
- $(INSTALL) rtla -m 755 $(DESTDIR)$(BINDIR)
- $(STRIP) $(DESTDIR)$(BINDIR)/rtla
- @test ! -f $(DESTDIR)$(BINDIR)/osnoise || rm $(DESTDIR)$(BINDIR)/osnoise
- ln -s rtla $(DESTDIR)$(BINDIR)/osnoise
- @test ! -f $(DESTDIR)$(BINDIR)/hwnoise || rm $(DESTDIR)$(BINDIR)/hwnoise
- ln -s rtla $(DESTDIR)$(BINDIR)/hwnoise
- @test ! -f $(DESTDIR)$(BINDIR)/timerlat || rm $(DESTDIR)$(BINDIR)/timerlat
- ln -s rtla $(DESTDIR)$(BINDIR)/timerlat
-
-.PHONY: clean tarball
-clean: doc_clean
- @test ! -f rtla || rm rtla
- @test ! -f rtla-static || rm rtla-static
- @test ! -f src/rtla.o || rm src/rtla.o
- @test ! -f $(TARBALL) || rm -f $(TARBALL)
- @rm -rf *~ $(OBJ) *.tar.$(CEXT)
-
-tarball: clean
- rm -rf $(NAME)-$(VERSION) && mkdir $(NAME)-$(VERSION)
- echo $(VERSION) > $(NAME)-$(VERSION)/VERSION
- cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION)
- mkdir $(NAME)-$(VERSION)/Documentation/
- cp -rp $(SRCTREE)/../../../Documentation/tools/rtla/* $(NAME)-$(VERSION)/Documentation/
- tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION)
- rm -rf $(NAME)-$(VERSION)
-
-.PHONY: doc doc_clean doc_install
-doc:
- $(MAKE) -C $(DOCSRC)
-
-doc_clean:
- $(MAKE) -C $(DOCSRC) clean
-
-doc_install:
- $(MAKE) -C $(DOCSRC) install
+CFLAGS += $(INCLUDES) $(LIB_INCLUDES)
+
+export CFLAGS OUTPUT srctree
+
+$(RTLA): $(RTLA_IN)
+ $(QUIET_LINK)$(CC) $(LDFLAGS) -o $(RTLA) $(RTLA_IN) $(EXTLIBS)
+
+static: $(RTLA_IN)
+ $(eval LDFLAGS += -static)
+ $(QUIET_LINK)$(CC) -static $(LDFLAGS) -o $(RTLA)-static $(RTLA_IN) $(EXTLIBS)
+
+rtla.%: fixdep FORCE
+ make -f $(srctree)/tools/build/Makefile.build dir=. $@
+
+$(RTLA_IN): fixdep FORCE
+ make $(build)=rtla
+
+clean: doc_clean fixdep-clean
+ $(call QUIET_CLEAN, rtla)
+ $(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
+ $(Q)rm -f rtla rtla-static fixdep FEATURE-DUMP rtla-*
+ $(Q)rm -rf feature
+.PHONY: FORCE clean
diff --git a/tools/tracing/rtla/Makefile.config b/tools/tracing/rtla/Makefile.config
new file mode 100644
index 0000000000..6d4ba77847
--- /dev/null
+++ b/tools/tracing/rtla/Makefile.config
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+STOP_ERROR :=
+
+LIBTRACEEVENT_MIN_VERSION = 1.5
+LIBTRACEFS_MIN_VERSION = 1.3
+
+define lib_setup
+ $(eval LIB_INCLUDES += $(shell sh -c "$(PKG_CONFIG) --cflags lib$(1)"))
+ $(eval EXTLIBS += -l$(1))
+endef
+
+$(call feature_check,libtraceevent)
+ifeq ($(feature-libtraceevent), 1)
+ $(call detected,CONFIG_LIBTRACEEVENT)
+
+ TEST = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 && echo y || echo n")
+ ifeq ($(TEST),n)
+ $(info libtraceevent version is too low, it must be at least $(LIBTRACEEVENT_MIN_VERSION))
+ STOP_ERROR := 1
+ endif
+
+ $(call lib_setup,traceevent)
+else
+ STOP_ERROR := 1
+ $(info libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel)
+endif
+
+$(call feature_check,libtracefs)
+ifeq ($(feature-libtracefs), 1)
+ $(call detected,CONFIG_LIBTRACEFS)
+
+ TEST = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 && echo y || echo n")
+ ifeq ($(TEST),n)
+ $(info libtracefs version is too low, it must be at least $(LIBTRACEFS_MIN_VERSION))
+ STOP_ERROR := 1
+ endif
+
+ $(call lib_setup,tracefs)
+else
+ STOP_ERROR := 1
+ $(info libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
+endif
+
+ifeq ($(STOP_ERROR),1)
+ $(error Please, check the errors above.)
+endif
diff --git a/tools/tracing/rtla/Makefile.rtla b/tools/tracing/rtla/Makefile.rtla
new file mode 100644
index 0000000000..3ff0b89708
--- /dev/null
+++ b/tools/tracing/rtla/Makefile.rtla
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+define allow-override
+ $(if $(or $(findstring environment,$(origin $(1))),\
+ $(findstring command line,$(origin $(1)))),,\
+ $(eval $(1) = $(2)))
+endef
+
+# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
+$(call allow-override,CC,$(CROSS_COMPILE)gcc)
+$(call allow-override,AR,$(CROSS_COMPILE)ar)
+$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
+$(call allow-override,PKG_CONFIG,pkg-config)
+$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
+$(call allow-override,LDCONFIG,ldconfig)
+export CC AR STRIP PKG_CONFIG LD_SO_CONF_PATH LDCONFIG
+
+FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \
+ -fasynchronous-unwind-tables -fstack-clash-protection
+WOPTS := -O -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 \
+ -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
+
+ifeq ($(CC),clang)
+ FOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(FOPTS))
+ WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
+endif
+
+CFLAGS := -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(WOPTS) $(CFLAGS)
+LDFLAGS := -ggdb $(LDFLAGS)
+
+RM := rm -rf
+LN := ln -s
+INSTALL := install
+MKDIR := mkdir
+STRIP := strip
+BINDIR := /usr/bin
+
+.PHONY: install
+install: doc_install
+ @$(MKDIR) -p $(DESTDIR)$(BINDIR)
+ $(call QUIET_INSTALL,rtla)$(INSTALL) rtla -m 755 $(DESTDIR)$(BINDIR)
+ @$(STRIP) $(DESTDIR)$(BINDIR)/rtla
+ @test ! -f $(DESTDIR)$(BINDIR)/osnoise || $(RM) $(DESTDIR)$(BINDIR)/osnoise
+ @$(LN) rtla $(DESTDIR)$(BINDIR)/osnoise
+ @test ! -f $(DESTDIR)$(BINDIR)/hwnoise || $(RM) $(DESTDIR)$(BINDIR)/hwnoise
+ @$(LN) -s rtla $(DESTDIR)$(BINDIR)/hwnoise
+ @test ! -f $(DESTDIR)$(BINDIR)/timerlat || $(RM) $(DESTDIR)$(BINDIR)/timerlat
+ @$(LN) -s rtla $(DESTDIR)$(BINDIR)/timerlat
+
+.PHONY: doc doc_clean doc_install
+doc:
+ $(MAKE) -C $(DOCSRC)
+
+doc_clean:
+ $(MAKE) -C $(DOCSRC) clean
+
+doc_install:
+ $(MAKE) -C $(DOCSRC) install
+
+# This section is neesary for the tarball, when the tarball
+# support is removed, we can delete these entries.
+NAME := rtla
+DIRS := src
+FILES := Makefile README.txt
+CEXT := bz2
+TARBALL := $(NAME)-$(VERSION).tar.$(CEXT)
+TAROPTS := -cvjf $(TARBALL)
+SRCTREE := $(or $(BUILD_SRC),$(CURDIR))
+
+tarball: clean
+ $(RM) $(NAME)-$(VERSION) && $(MKDIR) $(NAME)-$(VERSION)
+ echo $(VERSION) > $(NAME)-$(VERSION)/VERSION
+ cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION)
+ $(MKDIR) $(NAME)-$(VERSION)/Documentation/
+ cp -rp $(SRCTREE)/../../../Documentation/tools/$(NAME)/* $(NAME)-$(VERSION)/Documentation/
+ cp Makefile.standalone $(NAME)-$(VERSION)/Makefile
+ cp Makefile.$(NAME) $(NAME)-$(VERSION)/
+ tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION)
+ $(RM) $(NAME)-$(VERSION)
+.PHONY: tarball
diff --git a/tools/tracing/rtla/Makefile.standalone b/tools/tracing/rtla/Makefile.standalone
new file mode 100644
index 0000000000..86d07cb52f
--- /dev/null
+++ b/tools/tracing/rtla/Makefile.standalone
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+VERSION := $(shell cat VERSION)
+CFLAGS += $$($(PKG_CONFIG) --cflags libtracefs)
+EXTLIBS += $$($(PKG_CONFIG) --libs libtracefs)
+
+rtla:
+
+include Makefile.rtla
+
+SRC := $(wildcard src/*.c)
+HDR := $(wildcard src/*.h)
+OBJ := $(SRC:.c=.o)
+DOCSRC := Documentation/
+
+rtla: $(OBJ)
+ $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS) $(EXTLIBS)
+ $(info This is a deprecated method to compile RTLA, please compile from Linux kernel source)
+
+.PHONY: clean tarball
+clean: doc_clean
+ @test ! -f rtla || rm rtla
+ @test ! -f rtla-static || rm rtla-static
+ @test ! -f src/rtla.o || rm src/rtla.o
+ @test ! -f $(TARBALL) || rm -f $(TARBALL)
+ @rm -rf *~ $(OBJ) *.tar.$(CEXT)
diff --git a/tools/tracing/rtla/sample/timerlat_load.py b/tools/tracing/rtla/sample/timerlat_load.py
new file mode 100644
index 0000000000..8cc5eb2d2e
--- /dev/null
+++ b/tools/tracing/rtla/sample/timerlat_load.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2024 Red Hat, Inc. Daniel Bristot de Oliveira <bristot@kernel.org>
+#
+# This is a sample code about how to use timerlat's timer by any workload
+# so rtla can measure and provide auto-analysis for the overall latency (IOW
+# the response time) for a task.
+#
+# Before running it, you need to dispatch timerlat with -U option in a terminal.
+# Then # run this script pinned to a CPU on another terminal. For example:
+#
+# timerlat_load.py 1 -p 95
+#
+# The "Timerlat IRQ" is the IRQ latency, The thread latency is the latency
+# for the python process to get the CPU. The Ret from user Timer Latency is
+# the overall latency. In other words, it is the response time for that
+# activation.
+#
+# This is just an example, the load is reading 20MB of data from /dev/full
+# It is in python because it is easy to read :-)
+
+import argparse
+import sys
+import os
+
+parser = argparse.ArgumentParser(description='user-space timerlat thread in Python')
+parser.add_argument("cpu", help='CPU to run timerlat thread')
+parser.add_argument("-p", "--prio", help='FIFO priority')
+
+args = parser.parse_args()
+
+try:
+ affinity_mask = { int(args.cpu) }
+except:
+ print("Invalid cpu: " + args.cpu)
+ exit(1)
+
+try:
+ os.sched_setaffinity(0, affinity_mask);
+except:
+ print("Error setting affinity")
+ exit(1)
+
+if (args.prio):
+ try:
+ param = os.sched_param(int(args.prio))
+ os.sched_setscheduler(0, os.SCHED_FIFO, param)
+ except:
+ print("Error setting priority")
+ exit(1)
+
+try:
+ timerlat_path = "/sys/kernel/tracing/osnoise/per_cpu/cpu" + args.cpu + "/timerlat_fd"
+ timerlat_fd = open(timerlat_path, 'r')
+except:
+ print("Error opening timerlat fd, did you run timerlat -U?")
+ exit(1)
+
+try:
+ data_fd = open("/dev/full", 'r');
+except:
+ print("Error opening data fd")
+
+while True:
+ try:
+ timerlat_fd.read(1)
+ data_fd.read(20*1024*1024)
+ except:
+ print("Leaving")
+ break
+
+timerlat_fd.close()
+data_fd.close()
diff --git a/tools/tracing/rtla/src/Build b/tools/tracing/rtla/src/Build
new file mode 100644
index 0000000000..dbed9e3182
--- /dev/null
+++ b/tools/tracing/rtla/src/Build
@@ -0,0 +1,11 @@
+rtla-y += trace.o
+rtla-y += utils.o
+rtla-y += osnoise.o
+rtla-y += osnoise_top.o
+rtla-y += osnoise_hist.o
+rtla-y += timerlat.o
+rtla-y += timerlat_top.o
+rtla-y += timerlat_hist.o
+rtla-y += timerlat_u.o
+rtla-y += timerlat_aa.o
+rtla-y += rtla.o
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c
index dbf154082f..8bd51aab65 100644
--- a/tools/tracing/rtla/src/timerlat_hist.c
+++ b/tools/tracing/rtla/src/timerlat_hist.c
@@ -39,6 +39,7 @@ struct timerlat_hist_params {
int hk_cpus;
int no_aa;
int dump_tasks;
+ int user_workload;
int user_hist;
cpu_set_t hk_cpu_set;
struct sched_attr sched_param;
@@ -534,6 +535,7 @@ static void timerlat_hist_usage(char *usage)
" d:runtime[us|ms|s]:period[us|ms|s] - use SCHED_DEADLINE with runtime and period",
" in nanoseconds",
" -u/--user-threads: use rtla user-space threads instead of in-kernel timerlat threads",
+ " -U/--user-load: enable timerlat for user-defined user-space workload",
NULL,
};
@@ -595,6 +597,7 @@ static struct timerlat_hist_params
{"thread", required_argument, 0, 'T'},
{"trace", optional_argument, 0, 't'},
{"user-threads", no_argument, 0, 'u'},
+ {"user-load", no_argument, 0, 'U'},
{"event", required_argument, 0, 'e'},
{"no-irq", no_argument, 0, '0'},
{"no-thread", no_argument, 0, '1'},
@@ -613,7 +616,7 @@ static struct timerlat_hist_params
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:np:P:s:t::T:u0123456:7:8:9\1",
+ c = getopt_long(argc, argv, "a:c:C::b:d:e:E:DhH:i:np:P:s:t::T:uU0123456:7:8:9\1",
long_options, &option_index);
/* detect the end of the options. */
@@ -724,6 +727,9 @@ static struct timerlat_hist_params
params->trace_output = "timerlat_trace.txt";
break;
case 'u':
+ params->user_workload = 1;
+ /* fallback: -u implies in -U */
+ case 'U':
params->user_hist = 1;
break;
case '0': /* no irq */
@@ -985,7 +991,7 @@ int timerlat_hist_main(int argc, char *argv[])
}
}
- if (params->cgroup && !params->user_hist) {
+ if (params->cgroup && !params->user_workload) {
retval = set_comm_cgroup("timerlat/", params->cgroup_name);
if (!retval) {
err_msg("Failed to move threads to cgroup\n");
@@ -1049,7 +1055,7 @@ int timerlat_hist_main(int argc, char *argv[])
tool->start_time = time(NULL);
timerlat_hist_set_signals(params);
- if (params->user_hist) {
+ if (params->user_workload) {
/* rtla asked to stop */
params_u.should_run = 1;
/* all threads left */
@@ -1086,14 +1092,14 @@ int timerlat_hist_main(int argc, char *argv[])
break;
/* is there still any user-threads ? */
- if (params->user_hist) {
+ if (params->user_workload) {
if (params_u.stopped_running) {
debug_msg("timerlat user-space threads stopped!\n");
break;
}
}
}
- if (params->user_hist && !params_u.stopped_running) {
+ if (params->user_workload && !params_u.stopped_running) {
params_u.should_run = 0;
sleep(1);
}
diff --git a/tools/tracing/rtla/src/timerlat_top.c b/tools/tracing/rtla/src/timerlat_top.c
index 3e9af2c386..8a3fa64319 100644
--- a/tools/tracing/rtla/src/timerlat_top.c
+++ b/tools/tracing/rtla/src/timerlat_top.c
@@ -43,6 +43,7 @@ struct timerlat_top_params {
int cgroup;
int hk_cpus;
int user_top;
+ int user_workload;
cpu_set_t hk_cpu_set;
struct sched_attr sched_param;
struct trace_events *events;
@@ -364,6 +365,7 @@ static void timerlat_top_usage(char *usage)
" d:runtime[us|ms|s]:period[us|ms|s] - use SCHED_DEADLINE with runtime and period",
" in nanoseconds",
" -u/--user-threads: use rtla user-space threads instead of in-kernel timerlat threads",
+ " -U/--user-load: enable timerlat for user-defined user-space workload",
NULL,
};
@@ -423,6 +425,7 @@ static struct timerlat_top_params
{"thread", required_argument, 0, 'T'},
{"trace", optional_argument, 0, 't'},
{"user-threads", no_argument, 0, 'u'},
+ {"user-load", no_argument, 0, 'U'},
{"trigger", required_argument, 0, '0'},
{"filter", required_argument, 0, '1'},
{"dma-latency", required_argument, 0, '2'},
@@ -435,7 +438,7 @@ static struct timerlat_top_params
/* getopt_long stores the option index here. */
int option_index = 0;
- c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:np:P:qs:t::T:u0:1:2:345:",
+ c = getopt_long(argc, argv, "a:c:C::d:De:hH:i:np:P:qs:t::T:uU0:1:2:345:",
long_options, &option_index);
/* detect the end of the options. */
@@ -552,6 +555,9 @@ static struct timerlat_top_params
break;
case 'u':
+ params->user_workload = true;
+ /* fallback: -u implies -U */
+ case 'U':
params->user_top = true;
break;
case '0': /* trigger */
@@ -869,7 +875,7 @@ int timerlat_top_main(int argc, char *argv[])
top->start_time = time(NULL);
timerlat_top_set_signals(params);
- if (params->user_top) {
+ if (params->user_workload) {
/* rtla asked to stop */
params_u.should_run = 1;
/* all threads left */
@@ -912,7 +918,7 @@ int timerlat_top_main(int argc, char *argv[])
break;
/* is there still any user-threads ? */
- if (params->user_top) {
+ if (params->user_workload) {
if (params_u.stopped_running) {
debug_msg("timerlat user space threads stopped!\n");
break;
@@ -920,7 +926,7 @@ int timerlat_top_main(int argc, char *argv[])
}
}
- if (params->user_top && !params_u.stopped_running) {
+ if (params->user_workload && !params_u.stopped_running) {
params_u.should_run = 0;
sleep(1);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-07 03:09:24 +0000