Changes in stackcollapse-record

f26e8817b235d8764363bffcc9cbfc61867371f2 - Merge branch 'next' into for-linus

Fri, 16 Dec 2016 18:31:17 +0100

Merge branch 'next' into for-linusPrepare input updates for 4.10 merge window. List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

cc9b94029e9ef51787af908e9856b1eed314bc00 - Merge branch 'topic/error' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-fixed

Fri, 04 Nov 2016 19:16:38 +0100

Merge branch 'topic/error' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-fixed List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

9902aa4728fe9128ea45f1a772e2238d64d8cdc5 - Merge branch 'drm-tda998x-mali' into drm-tda998x-devel

Tue, 01 Nov 2016 10:17:57 +0100

Merge branch 'drm-tda998x-mali' into drm-tda998x-devel List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

4a7126a25b4dfd07d61c699f724118275acc0c25 - Merge tag 'v4.8' into next

Fri, 14 Oct 2016 02:25:40 +0200

Merge tag 'v4.8' into nextSync up with mainline to bring in I2C host notify changes and otherupdates. List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

712cba5d87a6c0e980ee5fad45734e189c4d7151 - Merge tag 'v4.9-rc3' into xtensa-for-next

Mon, 07 Nov 2016 08:31:10 +0100

Merge tag 'v4.9-rc3' into xtensa-for-nextLinux 4.9-rc3 List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

16217dc79dbc599b110dda26d0421df47904bba4 - Merge tag 'irqchip-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Wed, 14 Sep 2016 20:53:26 +0200

Merge tag 'irqchip-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/coreMerge the first drop of irqchip updates for 4.9 from Marc Zyngier:- ACPI IORT core code- IORT support for the GICv3 ITS- A few of GIC cleanups List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

cc9263874b42bf98209dce0afe698b550648e770 - Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued

Mon, 15 Aug 2016 10:41:47 +0200

Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queuedBackmerge because too many conflicts, and also we need to get at thelatest struct fence patches from Gustavo. Requested by Chris Wilson.Signed-off-by: Daniel Vetter List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

df15929f8f5c69e987c31bf016eca4a38dba46f0 - Merge branch 'linus' into x86/microcode, to pick up merge window changes

Wed, 27 Jul 2016 12:35:35 +0200

Merge branch 'linus' into x86/microcode, to pick up merge window changesSigned-off-by: Ingo Molnar List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

7e4dc77b2869a683fc43c0394fca5441816390ba - Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Mon, 25 Jul 2016 22:20:41 +0200

Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull perf updates from Ingo Molnar: "With over 300 commits it's been a busy cycle - with most of the work concentrated on the tooling side (as it should). The main kernel side enhancements were: - Add per event callchain limit: Recently we introduced a sysctl to tune the max-stack for all events for which callchains were requested: $ sysctl kernel.perf_event_max_stack kernel.perf_event_max_stack = 127 Now this patch introduces a way to configure this per event, i.e. this becomes possible: $ perf record -e sched:*/max-stack=2/ -e block:*/max-stack=10/ -a allowing finer tuning of how much buffer space callchains use. This uses an u16 from the reserved space at the end, leaving another u16 for future use. There has been interest in even finer tuning, namely to control the max stack for kernel and userspace callchains separately. Further discussion is needed, we may for instance use the remaining u16 for that and when it is present, assume that the sample_max_stack introduced in this patch applies for the kernel, and the u16 left is used for limiting the userspace callchain (Arnaldo Carvalho de Melo) - Optimize AUX event (hardware assisted side-band event) delivery (Kan Liang) - Rework Intel family name macro usage (this is partially x86 arch work) (Dave Hansen) - Refine and fix Intel LBR support (David Carrillo-Cisneros) - Add support for Intel 'TopDown' events (Andi Kleen) - Intel uncore PMU driver fixes and enhancements (Kan Liang) - ... other misc changes. Here's an incomplete list of the tooling enhancements (but there's much more, see the shortlog and the git log for details): - Support cross unwinding, i.e. collecting '--call-graph dwarf' perf.data files in one machine and then doing analysis in another machine of a different hardware architecture. This enables, for instance, to do: $ perf record -a --call-graph dwarf on a x86-32 or aarch64 system and then do 'perf report' on it on a x86_64 workstation (He Kuang) - Allow reading from a backward ring buffer (one setup via sys_perf_event_open() with perf_event_attr.write_backward = 1) (Wang Nan) - Finish merging initial SDT (Statically Defined Traces) support, see cset comments for details about how it all works (Masami Hiramatsu) - Support attaching eBPF programs to tracepoints (Wang Nan) - Add demangling of symbols in programs written in the Rust language (David Tolnay) - Add support for tracepoints in the python binding, including an example, that sets up and parses sched:sched_switch events, tools/perf/python/tracepoint.py (Jiri Olsa) - Introduce --stdio-color to set up the color output mode selection in 'annotate' and 'report', allowing emit color escape sequences when redirecting the output of these tools (Arnaldo Carvalho de Melo) - Add 'callindent' option to 'perf script -F', to indent the Intel PT call stack, making this output more ftrace-like (Adrian Hunter, Andi Kleen) - Allow dumping the object files generated by llvm when processing eBPF scriptlet events (Wang Nan) - Add stackcollapse.py script to help generating flame graphs (Paolo Bonzini) - Add --ldlat option to 'perf mem' to specify load latency for loads event (e.g. cpu/mem-loads/ ) (Jiri Olsa) - Tooling support for Intel TopDown counters, recently added to the kernel (Andi Kleen)"* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (303 commits) perf tests: Add is_printable_array test perf tools: Make is_printable_array global perf script python: Fix string vs byte array resolving perf probe: Warn unmatched function filter correctly perf cpu_map: Add more helpers perf stat: Balance opening and reading events tools: Copy linux/{hash,poison}.h and check for drift perf tools: Remove include/linux/list.h from perf's MANIFEST tools: Copy the bitops files accessed from the kernel and check for drift Remove: kernel unistd*h files from perf's MANIFEST, not used perf tools: Remove tools/perf/util/include/linux/const.h perf tools: Remove tools/perf/util/include/asm/byteorder.h perf tools: Add missing linux/compiler.h include to perf-sys.h perf jit: Remove some no-op error handling perf jit: Add missing curly braces objtool: Initialize variable to silence old compiler objtool: Add -I$(srctree)/tools/arch/$(ARCH)/include/uapi perf record: Add --tail-synthesize option perf session: Don't warn about out of order event if write_backward is used perf tools: Enable overwrite settings ... List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

4330b439bbe16b48dd2fe9a379bd58a07b97aab8 - Merge tag 'perf-core-for-mingo-20160621' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Wed, 22 Jun 2016 09:34:19 +0200

Merge tag 'perf-core-for-mingo-20160621' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/corePull perf/core improvements and fixes from Arnaldo Carvalho de Melo:New features: - Add --dry-run option to 'perf record' to check if command line options can be parsed, but not doing any recording (Wang Nan) - Allow dumping the object files generated by llvm when processing eBPF scriptlet events (Wang Nan) - Add stackcollapse.py script to help generating flame graphs (Paolo Bonzini)Documentation changes: - Fix 'perf script' documentation of '-f' when it should be '-F' (Adrian Hunter)Infrastructure changes: - Fix write_backwards fallback when using a new tool on older kernels without support for this feature (Arnaldo Carvalho de Melo) - Remove some leftovers from the initial codebase copying from git (Arnaldo Carvalho de Melo) - List libelf-devel as an alternative, as this is how the libelf development package is called on OpenSuSE (Jean Delvare) - Rename __hists__add_entry to hists__add_entry (Jiri Olsa)Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Ingo Molnar List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record

6745d8ea825966b0956c691cf7fccc13debedc39 - perf script: Add stackcollapse.py script

Tue, 12 Apr 2016 15:26:13 +0200

perf script: Add stackcollapse.py scriptAdd stackcollapse.py script as an example of parsing call chains, andalso of using optparse to access command line options.The flame graph tools include a set of scripts that parse output fromvarious tools (including "perf script"), remove the offsets in thefunction and collapse each stack to a single line. The website alsosays "perf report could have a report style [...] that output foldedstacks directly, obviating the need for stackcollapse-perf.pl", so hereit is.This script is a Python rewrite of stackcollapse-perf.pl, using the perfscripting interface to access the perf data directly from Python.Signed-off-by: Paolo Bonzini Acked-by: Jiri Olsa Cc: Brendan Gregg Link: http://lkml.kernel.org/r/1460467573-22989-1-git-send-email-pbonzini@redhat.comSigned-off-by: Arnaldo Carvalho de Melo List of files: /linux/tools/perf/scripts/python/bin/stackcollapse-record