Merge tag 'perf-core-for-mingo-4.19-20180801' of...
Merge tag 'perf-core-for-mingo-4.19-20180801' 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: perf trace: (Arnaldo Carvalho de Melo) - Do not require --no-syscalls to suppress strace like output, i.e. # perf trace -e sched:*switch will show just sched:sched_switch events, not strace-like formatted syscall events, use --syscalls to get the previous behaviour. If instead: # perf trace is used, i.e. no events specified, then --syscalls is implied and system wide strace like formatting will be applied to all syscalls. The behaviour when just a syscall subset is used with '-e' is unchanged: # perf trace -e *sleep,sched:*switch will work as before: just the 'nanosleep' syscall will be strace-like formatted plus the sched:sched_switch tracepoint event, system wide. - Allow string table generators to use a default header dir, allowing use of them without parameters to see the table it generates on stdout, e.g.: $ tools/perf/trace/beauty/kvm_ioctl.sh static const char *kvm_ioctl_cmds[] = { [0x00] = "GET_API_VERSION", [0x01] = "CREATE_VM", [0x02] = "GET_MSR_INDEX_LIST", [0x03] = "CHECK_EXTENSION", <BIG SNIP> [0xe0] = "CREATE_DEVICE", [0xe1] = "SET_DEVICE_ATTR", [0xe2] = "GET_DEVICE_ATTR", [0xe3] = "HAS_DEVICE_ATTR", }; $ See 'ls tools/perf/trace/beauty/*.sh' to see the available string table generators. - Add a generator for IPPROTO_ socket's protocol constants. perf record: (Kan Liang) - Fix error out while applying initial delay and using LBR, due to the use of a PERF_TYPE_SOFTWARE/PERF_COUNT_SW_DUMMY event to track PERF_RECORD_MMAP events while waiting for the initial delay. Such events fail when configured asking PERF_SAMPLE_BRANCH_STACK in perf_event_attr.sample_type. perf c2c: (Jiri Olsa) - Fix report crash for empty browser, when processing a perf.data file without events of interest, either because not asked for in 'perf record' or because the workload didn't triggered such events. perf list: (Michael Petlan) - Align metric group description format with PMU event description. perf tests: (Sandipan Das) - Fix indexing when invoking subtests, which caused BPF tests to get results for the next test in the list, with the last one reporting a failure. eBPF: - Fix installation directory for header files included from eBPF proggies, avoiding clashing with relative paths used to build other software projects such as glibc. (Thomas Richter) - Show better message when failing to load an object. (Arnaldo Carvalho de Melo) General: (Christophe Leroy) - Allow overriding MAX_NR_CPUS at compile time, to make the tooling usable in systems with less memory, in time this has to be changed to properly allocate based on _NPROCESSORS_ONLN. Architecture specific: - Update arm64's ThunderX2 implementation defined pmu core events (Ganapatrao Kulkarni) - Fix complex event name parsing in 'perf test' for PowerPC, where the 'umask' event modifier isn't present. (Sandipan Das) CoreSight ARM hardware tracing: (Leo Yan) - Fix start tracing packet handling. - Support dummy address value for CS_ETM_TRACE_ON packet. - Generate branch sample when receiving a CS_ETM_TRACE_ON packet. - Generate branch sample for CS_ETM_TRACE_ON packet. Signed-off-by:Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org>
Please register or sign in to comment