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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-13 17:58:15 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-13 17:58:15 +0400
commit9d9420f1209a1facea7110d549ac695f5aeeb503 (patch)
tree7956d1c40420644830decbbc90b8bbdfeb194364 /firmware/advansys
parent6d5f0ebfc0be9cbfeaafdd9258d5fa24b7975a36 (diff)
parentcc6cd47e7395bc05c5077009808b820633eb3f18 (diff)
downloadlinux-9d9420f1209a1facea7110d549ac695f5aeeb503.tar.xz
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar: "Kernel side updates: - Fix and enhance poll support (Jiri Olsa) - Re-enable inheritance optimization (Jiri Olsa) - Enhance Intel memory events support (Stephane Eranian) - Refactor the Intel uncore driver to be more maintainable (Zheng Yan) - Enhance and fix Intel CPU and uncore PMU drivers (Peter Zijlstra, Andi Kleen) - [ plus various smaller fixes/cleanups ] User visible tooling updates: - Add +field argument support for --field option, so that one can add fields to the default list of fields to show, ie now one can just do: perf report --fields +pid And the pid will appear in addition to the default fields (Jiri Olsa) - Add +field argument support for --sort option (Jiri Olsa) - Honour -w in the report tools (report, top), allowing to specify the widths for the histogram entries columns (Namhyung Kim) - Properly show submicrosecond times in 'perf kvm stat' (Christian Borntraeger) - Add beautifier for mremap flags param in 'trace' (Alex Snast) - perf script: Allow callchains if any event samples them - Don't truncate Intel style addresses in 'annotate' (Alex Converse) - Allow profiling when kptr_restrict == 1 for non root users, kernel samples will just remain unresolved (Andi Kleen) - Allow configuring default options for callchains in config file (Namhyung Kim) - Support operations for shared futexes. (Davidlohr Bueso) - "perf kvm stat report" improvements by Alexander Yarygin: - Save pid string in opts.target.pid - Enable the target.system_wide flag - Unify the title bar output - [ plus lots of other fixes and small improvements. ] Tooling infrastructure changes: - Refactor unit and scale function parameters for PMU parsing routines (Matt Fleming) - Improve DSO long names lookup with rbtree, resulting in great speedup for workloads with lots of DSOs (Waiman Long) - We were not handling POLLHUP notifications for event file descriptors Fix it by filtering entries in the events file descriptor array after poll() returns, refcounting mmaps so that when the last fd pointing to a perf mmap goes away we do the unmap (Arnaldo Carvalho de Melo) - Intel PT prep work, from Adrian Hunter, including: - Let a user specify a PMU event without any config terms - Add perf-with-kcore script - Let default config be defined for a PMU - Add perf_pmu__scan_file() - Add a 'perf test' for tracking with sched_switch - Add 'flush' callback to scripting API - Use ring buffer consume method to look like other tools (Arnaldo Carvalho de Melo) - hists browser (used in top and report) refactorings, getting rid of unused variables and reducing source code size by handling similar cases in a fewer functions (Namhyung Kim). - Replace thread unsafe strerror() with strerror_r() accross the whole tools/perf/ tree (Masami Hiramatsu) - Rename ordered_samples to ordered_events and allow setting a queue size for ordering events (Jiri Olsa) - [ plus lots of fixes, cleanups and other improvements ]" * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (198 commits) perf/x86: Tone down kernel messages when the PMU check fails in a virtual environment perf/x86/intel/uncore: Fix minor race in box set up perf record: Fix error message for --filter option not coming after tracepoint perf tools: Fix build breakage on arm64 targets perf symbols: Improve DSO long names lookup speed with rbtree perf symbols: Encapsulate dsos list head into struct dsos perf bench futex: Sanitize -q option in requeue perf bench futex: Support operations for shared futexes perf trace: Fix mmap return address truncation to 32-bit perf tools: Refactor unit and scale function parameters perf tools: Fix line number in the config file error message perf tools: Convert {record,top}.call-graph option to call-graph.record-mode perf tools: Introduce perf_callchain_config() perf callchain: Move some parser functions to callchain.c perf tools: Move callchain config from record_opts to callchain_param perf hists browser: Fix callchain print bug on TUI perf tools: Use ACCESS_ONCE() instead of volatile cast perf tools: Modify error code for when perf_session__new() fails perf tools: Fix perf record as non root with kptr_restrict == 1 perf stat: Fix --per-core on multi socket systems ...
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