Commit ca46afdb authored Dec 18, 2018 by Ingo Molnar

Merge tag 'perf-core-for-mingo-4.21-20181217' of...

Merge tag 'perf-core-for-mingo-4.21-20181217' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

 into perf/core

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

- Introduce 'perf record --aio' to use asynchronous IO trace writing, disabled
  by default (Alexey Budankov)

- Add fallback routines to be used in places where we don't have the CPU mode
  (kernel/userspace/hypervisor) and thus must first fallback lookups looking
  at all map trees when trying to resolve symbols (Adrian Hunter)

- Fix error with config term "pt=0", where we should just force "pt=1" and
  warn the user about the former being nonsensical (Adrian Hunter)

- Fix 'perf test' entry where we expect 'sleep' to come in a PERF_RECORD_COMM
  but instead we get 'coreutils' when sleep is provided by some versions of
  the 'coreutils' package (Adrian Hunter)

- Introduce 'perf top --kallsyms file' to match 'perf report --kallsyms', useful
  when dealing with BPF, where symbol resolution happens via kallsyms, not via
  the default vmlinux ELF symtabs (Arnaldo Carvalho de Melo)

- Support 'srccode' output field in 'perf script' (Andi Kleen)

- Introduce basic 'perf annotation' support for the ARC architecture (Eugeniy Paltsev)

- Compute and display average IPC and IPC coverage per symbol in 'perf annotate' and
  'perf report' (Jin Yao)

- Make 'perf top' use ordered_events and process histograms in a separate thread (Jiri Olsa)

- Make 'perf trace' use ordered_events (Jiri Olsa)

- Add support for ETMv3 and PTMv1.1 decoding in cs-etm (Mathieu Poirier)

- Support for ARM A32/T32 instruction sets in CoreSight trace (cs-etm) (Robert Walker)

- Fix 'perf stat' shadow stats for clock events. (Ravi Bangoria)

- Remove needless rb_tree extra indirection from map__find() (Eric Saint-Etienne)

- Fix CSV mode column output for non-cgroup events in 'perf stat' (Stephane Eranian)

- Add sanity check to libtraceevent's is_timestamp_in_us() (Tzvetomir Stoyanov)

- Use ERR_CAST instead of ERR_PTR(PTR_ERR()) (Wen Yang)

- Fix Load_Miss_Real_Latency on SKL/SKX intel vendor event files (Andi Kleen)

- strncpy() fixes triggered by new warnings on gcc 8.2.0 (Arnaldo Carvalho de Melo)

- Handle tracefs syscall tracepoint older 'nr' field in 'perf trace', that got
  renamed to '__syscall_nr' to work in older kernels (Arnaldo Carvalho de Melo)

- Give better hint about devel package for libssl (Arnaldo Carvalho de Melo)

- Fix the 'perf trace' build in architectures lacking explicit mmap.h file (Arnaldo Carvalho de Melo)

- Remove extra rb_tree traversal indirection from map__find() (Eric Saint-Etienne)

- Disable breakpoint tests for 32-bit ARM (Florian Fainelli)

- Fix typos all over the place, mostly in comments, but also in some debug
  messages and JSON files (Ingo Molnar)

- Allow specifying proc-map-timeout in config file (Mark Drayton)

- Fix mmap_flags table generation script (Sihyeon Jang)

- Fix 'size' parameter to snprintf in the 'perf config' code (Sihyeon Jang)

- More libtraceevent renames to make it a proper library (Tzvetomir Stoyanov)

- Implement new API tep_get_ref() in libtraceevent (Tzvetomir Stoyanov)

- Added support for pkg-config in libtraceevent (Tzvetomir Stoyanov)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

parents 8162b3d1 028713aa

tools/build/Makefile.feature

+4 −2

Original line number	Diff line number	Diff line
		@@ -70,7 +70,8 @@ FEATURE_TESTS_BASIC := \
		sched_getcpu \
		sdt \
		setns \
		libopencsd
		libopencsd \
		libaio

		# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
		# of all feature tests
		@@ -116,7 +117,8 @@ FEATURE_DISPLAY ?= \
		zlib \
		lzma \
		get_cpuid \
		bpf
		bpf \
		libaio

		# Set FEATURE_CHECK_(C\|LD)FLAGS-all for all FEATURE_TESTS features.
		# If in the future we need per-feature checks/flags for features not

tools/build/feature/Makefile

+5 −1

Original line number	Diff line number	Diff line
		@@ -61,7 +61,8 @@ FILES= \
		test-libopencsd.bin \
		test-clang.bin \
		test-llvm.bin \
		test-llvm-version.bin
		test-llvm-version.bin \
		test-libaio.bin

		FILES := $(addprefix $(OUTPUT),$(FILES))

		@@ -297,6 +298,9 @@ $(OUTPUT)test-clang.bin:

		-include $(OUTPUT)*.d

		$(OUTPUT)test-libaio.bin:
		$(BUILD) -lrt

		###############################

		clean:

tools/build/feature/test-all.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -174,6 +174,10 @@
		# include "test-libopencsd.c"
		#undef main

		#define main main_test_libaio
		# include "test-libaio.c"
		#undef main

		int main(int argc, char *argv[])
		{
		main_test_libpython();
		@@ -214,6 +218,7 @@ int main(int argc, char *argv[])
		main_test_sdt();
		main_test_setns();
		main_test_libopencsd();
		main_test_libaio();

		return 0;
		}

tools/build/feature/test-libaio.c

0 → 100644

+16 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0
		#include <aio.h>

		int main(void)
		{
		struct aiocb aiocb;

		aiocb.aio_fildes = 0;
		aiocb.aio_offset = 0;
		aiocb.aio_buf = 0;
		aiocb.aio_nbytes = 0;
		aiocb.aio_reqprio = 0;
		aiocb.aio_sigevent.sigev_notify = 1 /SIGEV_NONE/;

		return (int)aio_return(&aiocb);
		}

tools/build/feature/test-libopencsd.c

+8 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0
		#include <opencsd/c_api/opencsd_c_api.h>

		/*
		* Check OpenCSD library version is sufficient to provide required features
		*/
		#define OCSD_MIN_VER ((0 << 16) \| (10 << 8) \| (0))
		#if !defined(OCSD_VER_NUM) \|\| (OCSD_VER_NUM < OCSD_MIN_VER)
		#error "OpenCSD >= 0.10.0 is required"
		#endif

		int main(void)
		{
		(void)ocsd_get_version();