#
65b7f6d7 |
| 16-Nov-2015 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
Merge tag 'v4.4-rc1' into patchwork
Linux 4.4-rc1
* tag 'v4.4-rc1': (12900 commits) Linux 4.4-rc1 ARC: Fix silly typo in MAINTAINERS file ARC: cpu_relax() to be compiler barrier even for UP
Merge tag 'v4.4-rc1' into patchwork
Linux 4.4-rc1
* tag 'v4.4-rc1': (12900 commits) Linux 4.4-rc1 ARC: Fix silly typo in MAINTAINERS file ARC: cpu_relax() to be compiler barrier even for UP ARC: use ASL assembler mnemonic ARC: [arcompact] Handle bus error from userspace as Interrupt not exception ARC: remove extraneous header include f2fs: xattr simplifications squashfs: xattr simplifications 9p: xattr simplifications xattr handlers: Pass handler to operations instead of flags jffs2: Add missing capability check for listing trusted xattrs hfsplus: Remove unused xattr handler list operations ubifs: Remove unused security xattr handler vfs: Fix the posix_acl_xattr_list return value vfs: Check attribute names in posix acl xattr handers mpt3sas: fix inline markers on non inline function declarations dax: fix __dax_pmd_fault crash Revert "drm/rockchip: Convert the probe function to the generic drm_of_component_probe()" drm: Don't oops in drm_calc_timestamping_constants() if drm_vblank_init() wasn't called ALSA: pci: depend on ZONE_DMA ...
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#
617f4183 |
| 16-Nov-2015 |
Brian Norris <computersforpeace@gmail.com> |
Merge v4.4-rc1 into MTD development
Sync up with the upstream development.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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Revision tags: v4.4-rc1 |
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#
ff6d03b9 |
| 12-Nov-2015 |
Tony Lindgren <tony@atomide.com> |
Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes
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#
b02ac6b1 |
| 04-Nov-2015 |
Linus Torvalds <torvalds@linux-foundation.org> |
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 changes:
- Improve accuracy of perf/sched clock on x
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 changes:
- Improve accuracy of perf/sched clock on x86. (Adrian Hunter)
- Intel DS and BTS updates. (Alexander Shishkin)
- Intel cstate PMU support. (Kan Liang)
- Add group read support to perf_event_read(). (Peter Zijlstra)
- Branch call hardware sampling support, implemented on x86 and PowerPC. (Stephane Eranian)
- Event groups transactional interface enhancements. (Sukadev Bhattiprolu)
- Enable proper x86/intel/uncore PMU support on multi-segment PCI systems. (Taku Izumi)
- ... misc fixes and cleanups.
The perf tooling team was very busy again with 200+ commits, the full diff doesn't fit into lkml size limits. Here's an (incomplete) list of the tooling highlights:
New features:
- Change the default event used in all tools (record/top): use the most precise "cycles" hw counter available, i.e. when the user doesn't specify any event, it will try using cycles:ppp, cycles:pp, etc and fall back transparently until it finds a working counter. (Arnaldo Carvalho de Melo)
- Integration of perf with eBPF that, given an eBPF .c source file (or .o file built for the 'bpf' target with clang), will get it automatically built, validated and loaded into the kernel via the sys_bpf syscall, which can then be used and seen using 'perf trace' and other tools.
(Wang Nan)
Various user interface improvements:
- Automatic pager invocation on long help output. (Namhyung Kim)
- Search for more options when passing args to -h, e.g.: (Arnaldo Carvalho de Melo)
$ perf report -h interface
Usage: perf report [<options>]
--gtk Use the GTK2 interface --stdio Use the stdio interface --tui Use the TUI interface
- Show ordered command line options when -h is used or when an unknown option is specified. (Arnaldo Carvalho de Melo)
- If options are passed after -h, show just its descriptions, not all options. (Arnaldo Carvalho de Melo)
- Implement column based horizontal scrolling in the hists browser (top, report), making it possible to use the TUI for things like 'perf mem report' where there are many more columns than can fit in a terminal. (Arnaldo Carvalho de Melo)
- Enhance the error reporting of tracepoint event parsing, e.g.:
$ oldperf record -e sched:sched_switc usleep 1 event syntax error: 'sched:sched_switc' \___ unknown tracepoint Run 'perf list' for a list of valid events
Now we get the much nicer:
$ perf record -e sched:sched_switc ls event syntax error: 'sched:sched_switc' \___ can't access trace events
Error: No permissions to read /sys/kernel/debug/tracing/events/sched/sched_switc Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug'
And after we have those mount point permissions fixed:
$ perf record -e sched:sched_switc ls event syntax error: 'sched:sched_switc' \___ unknown tracepoint
Error: File /sys/kernel/debug/tracing/events/sched/sched_switc not found. Hint: Perhaps this kernel misses some CONFIG_ setting to enable this feature?.
I.e. basically now the event parsing routing uses the strerror_open() routines introduced by and used in 'perf trace' work. (Jiri Olsa)
- Fail properly when pattern matching fails to find a tracepoint, i.e. '-e non:existent' was being correctly handled, with a proper error message about that not being a valid event, but '-e non:existent*' wasn't, fix it. (Jiri Olsa)
- Do event name substring search as last resort in 'perf list'. (Arnaldo Carvalho de Melo)
E.g.:
# perf list clock
List of pre-defined events (to be used in -e):
cpu-clock [Software event] task-clock [Software event]
uncore_cbox_0/clockticks/ [Kernel PMU event] uncore_cbox_1/clockticks/ [Kernel PMU event]
kvm:kvm_pvclock_update [Tracepoint event] kvm:kvm_update_master_clock [Tracepoint event] power:clock_disable [Tracepoint event] power:clock_enable [Tracepoint event] power:clock_set_rate [Tracepoint event] syscalls:sys_enter_clock_adjtime [Tracepoint event] syscalls:sys_enter_clock_getres [Tracepoint event] syscalls:sys_enter_clock_gettime [Tracepoint event] syscalls:sys_enter_clock_nanosleep [Tracepoint event] syscalls:sys_enter_clock_settime [Tracepoint event] syscalls:sys_exit_clock_adjtime [Tracepoint event] syscalls:sys_exit_clock_getres [Tracepoint event] syscalls:sys_exit_clock_gettime [Tracepoint event] syscalls:sys_exit_clock_nanosleep [Tracepoint event] syscalls:sys_exit_clock_settime [Tracepoint event]
Intel PT hardware tracing enhancements:
- Accept a zero --itrace period, meaning "as often as possible". In the case of Intel PT that is the same as a period of 1 and a unit of 'instructions' (i.e. --itrace=i1i). (Adrian Hunter)
- Harmonize itrace's synthesized callchains with the existing --max-stack tool option. (Adrian Hunter)
- Allow time to be displayed in nanoseconds in 'perf script'. (Adrian Hunter)
- Fix potential infinite loop when handling Intel PT timestamps. (Adrian Hunter)
- Slighly improve Intel PT debug logging. (Adrian Hunter)
- Warn when AUX data has been lost, just like when processing PERF_RECORD_LOST. (Adrian Hunter)
- Further document export-to-postgresql.py script. (Adrian Hunter)
- Add option to synthesize branch stack from auxtrace data. (Adrian Hunter)
Misc notable changes:
- Switch the default callchain output mode to 'graph,0.5,caller', to make it look like the default for other tools, reducing the learning curve for people used to 'caller' based viewing. (Arnaldo Carvalho de Melo)
- various call chain usability enhancements. (Namhyung Kim)
- Introduce the 'P' event modifier, meaning 'max precision level, please', i.e.:
$ perf record -e cycles:P usleep 1
Is now similar to:
$ perf record usleep 1
Useful, for instance, when specifying multiple events. (Jiri Olsa)
- Add 'socket' sort entry, to sort by the processor socket in 'perf top' and 'perf report'. (Kan Liang)
- Introduce --socket-filter to 'perf report', for filtering by processor socket. (Kan Liang)
- Add new "Zoom into Processor Socket" operation in the perf hists browser, used in 'perf top' and 'perf report'. (Kan Liang)
- Allow probing on kmodules without DWARF. (Masami Hiramatsu)
- Fix 'perf probe -l' for probes added to kernel module functions. (Masami Hiramatsu)
- Preparatory work for the 'perf stat record' feature that will allow generating perf.data files with counting data in addition to the sampling mode we have now (Jiri Olsa)
- Update libtraceevent KVM plugin. (Paolo Bonzini)
- ... plus lots of other enhancements that I failed to list properly, by: Adrian Hunter, Alexander Shishkin, Andi Kleen, Andrzej Hajda, Arnaldo Carvalho de Melo, Dima Kogan, Don Zickus, Geliang Tang, He Kuang, Huaitong Han, Ingo Molnar, Jan Stancek, Jiri Olsa, Kan Liang, Kirill Tkhai, Masami Hiramatsu, Matt Fleming, Namhyung Kim, Paolo Bonzini, Peter Zijlstra, Rabin Vincent, Scott Wood, Stephane Eranian, Sukadev Bhattiprolu, Taku Izumi, Vaishali Thakkar, Wang Nan, Yang Shi and Yunlong Song"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (260 commits) perf unwind: Pass symbol source to libunwind tools build: Fix libiberty feature detection perf tools: Compile scriptlets to BPF objects when passing '.c' to --event perf record: Add clang options for compiling BPF scripts perf bpf: Attach eBPF filter to perf event perf tools: Make sure fixdep is built before libbpf perf script: Enable printing of branch stack perf trace: Add cmd string table to decode sys_bpf first arg perf bpf: Collect perf_evsel in BPF object files perf tools: Load eBPF object into kernel perf tools: Create probe points for BPF programs perf tools: Enable passing bpf object file to --event perf ebpf: Add the libbpf glue perf tools: Make perf depend on libbpf perf symbols: Fix endless loop in dso__split_kallsyms_for_kcore perf tools: Enable pre-event inherit setting by config terms perf symbols: we can now read separate debug-info files based on a build ID perf symbols: Fix type error when reading a build-id perf tools: Search for more options when passing args to -h perf stat: Cache aggregated map entries in extra cpumap ...
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Revision tags: v4.3 |
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#
6fc774ef |
| 29-Oct-2015 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'perf-core-for-mingo' 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:
User visible changes:
Merge tag 'perf-core-for-mingo' 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:
User visible changes:
- Enable per-event perf_event_attr.inherit setting by config terms, i.e. this becomes possible:
$ perf record -e cycles/inherit/ -e instructions/no-inherit/
This affects the default, that can be changed globally using the --no-inherit option.
This fine grained control appeared in the eBPF patchkit, but this added flexibility may end up being useful in other scenarios. (Wang Nan)
- Setup pager when printing usage and help, we have long lists of options, better use the pager like we do with normal tooling output, i.e. when needed, and including any error messages in the paged output. (Namhyung Kim)
- Search for more options when passing args to -h, e.g.: (Arnaldo Carvalho de Melo)
$ perf report -h interface
Usage: perf report [<options>]
--gtk Use the GTK2 interface --stdio Use the stdio interface --tui Use the TUI interface
- Fix reading separate debuginfo files based on a build-id, problem found on a Debian system. (Dima Kogan)
- Fix endless loop when splitting kallsyms symbols per section for handling kcore files, problem found on a s390x system. (Jiri Olsa)
Infrastructure changes:
- Prep work for the 'perf stat record' work that will allow generating perf.data files with counting data in addition to the sampling mode we have now (Jiri Olsa)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v4.3-rc7 |
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#
c7118369 |
| 24-Oct-2015 |
Namhyung Kim <namhyung@kernel.org> |
perf tools: Introduce usage_with_options_msg()
Now usage_with_options() setup a pager before printing message so normal printf() or pr_err() will not be shown. The usage_with_options_msg() can be u
perf tools: Introduce usage_with_options_msg()
Now usage_with_options() setup a pager before printing message so normal printf() or pr_err() will not be shown. The usage_with_options_msg() can be used to print some help message before usage strings.
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1445701767-12731-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Revision tags: v4.3-rc6, v4.3-rc5, v4.3-rc4, v4.3-rc3, v4.3-rc2, v4.3-rc1 |
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#
01b944fe |
| 03-Sep-2015 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare first round of input updates for 4.3 merge window.
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Revision tags: v4.2, v4.2-rc8, v4.2-rc7, v4.2-rc6, v4.2-rc5, v4.2-rc4 |
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#
c57d5621 |
| 20-Jul-2015 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v4.2-rc3' into next
Sync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces.
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Revision tags: v4.2-rc3, v4.2-rc2, v4.2-rc1 |
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#
ec3b34e1 |
| 22-Jun-2015 |
Jiri Kosina <jkosina@suse.cz> |
Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linus
Conflicts: drivers/
Merge branches 'for-4.2/i2c-hid', 'for-4.2/lenovo', 'for-4.2/plantronics', 'for-4.2/rmi', 'for-4.2/sensor-hub', 'for-4.2/sjoy', 'for-4.2/sony' and 'for-4.2/wacom' into for-linus
Conflicts: drivers/hid/wacom_wac.c
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Revision tags: v4.1, v4.1-rc8 |
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#
6724af48 |
| 09-Jun-2015 |
Mark Brown <broonie@kernel.org> |
Merge branch 'fix/fsl-dspi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-fsl-dspi
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Revision tags: v4.1-rc7, v4.1-rc6, v4.1-rc5, v4.1-rc4, v4.1-rc3 |
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#
7ae383be |
| 08-May-2015 |
Ingo Molnar <mingo@kernel.org> |
Merge branch 'linus' into x86/asm, before applying dependent patch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v4.1-rc2 |
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#
b3e5ced6 |
| 27-Apr-2015 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
Merge tag 'v4.1-rc1' into patchwork
Linux 4.1-rc1
* tag 'v4.1-rc1': (11651 commits) Linux 4.1-rc1 x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue v4l: xilinx: fix for includ
Merge tag 'v4.1-rc1' into patchwork
Linux 4.1-rc1
* tag 'v4.1-rc1': (11651 commits) Linux 4.1-rc1 x86_64, asm: Work around AMD SYSRET SS descriptor attribute issue v4l: xilinx: fix for include file movement platform/chrome: chromeos_laptop - instantiate Atmel at primary address RCU pathwalk breakage when running into a symlink overmounting something fix I_DIO_WAKEUP definition direct-io: only inc/dec inode->i_dio_count for file systems fs/9p: fix readdir() Btrfs: prevent list corruption during free space cache processing toshiba_acpi: Do not register vendor backlight when acpi_video bl is available x86: fix special __probe_kernel_write() tail zeroing case crypto: img-hash - CRYPTO_DEV_IMGTEC_HASH should depend on HAS_DMA crypto: x86/sha512_ssse3 - fixup for asm function prototype change nios2: rework cache nios2: Add types.h header required for __u32 type ALSA: hda - fix headset mic detection problem for one more machine eth: bf609 eth clock: add pclk clock for stmmac driver probe blackfin: Wire up missing syscalls Btrfs: fix inode cache writeout ACPI / scan: Add a scan handler for PRP0001 ...
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Revision tags: v4.1-rc1 |
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#
64131a87 |
| 21-Apr-2015 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits) media-bus: Fixup
Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits) media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format hexdump: avoid warning in test function fs: take i_mutex during prepare_binprm for set[ug]id executables smp: Fix error case handling in smp_call_function_*() iommu-common: Fix PARISC compile-time warnings sparc: Make LDC use common iommu poll management functions sparc: Make sparc64 use scalable lib/iommu-common.c functions Break up monolithic iommu table/lock into finer graularity pools and lock sparc: Revert generic IOMMU allocator. tools/power turbostat: correct dumped pkg-cstate-limit value tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL tools/power turbostat: correct DRAM RAPL units on recent Xeon processors tools/power turbostat: Initial Skylake support tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile tools/power turbostat: modprobe msr, if needed tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2 tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names Bluetooth: hidp: Fix regression with older userspace and flags validation config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected perf/x86/intel/pt: Fix and clean up error handling in pt_event_add() ...
That solves several merge conflicts: Documentation/DocBook/media/v4l/subdev-formats.xml Documentation/devicetree/bindings/vendor-prefixes.txt drivers/staging/media/mn88473/mn88473.c include/linux/kconfig.h include/uapi/linux/media-bus-format.h
The ones at subdev-formats.xml and media-bus-format.h are not trivial. That's why we opted to merge from DRM.
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#
2c33ce00 |
| 20-Apr-2015 |
Dave Airlie <airlied@redhat.com> |
Merge Linus master into drm-next
The merge is clean, but the arm build fails afterwards, due to API changes in the regulator tree.
I've included the patch into the merge to fix the build.
Signed-o
Merge Linus master into drm-next
The merge is clean, but the arm build fails afterwards, due to API changes in the regulator tree.
I've included the patch into the merge to fix the build.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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#
6c8a53c9 |
| 14-Apr-2015 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf changes from Ingo Molnar: "Core kernel changes:
- One of the more interesting features in t
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf changes from Ingo Molnar: "Core kernel changes:
- One of the more interesting features in this cycle is the ability to attach eBPF programs (user-defined, sandboxed bytecode executed by the kernel) to kprobes.
This allows user-defined instrumentation on a live kernel image that can never crash, hang or interfere with the kernel negatively. (Right now it's limited to root-only, but in the future we might allow unprivileged use as well.)
(Alexei Starovoitov)
- Another non-trivial feature is per event clockid support: this allows, amongst other things, the selection of different clock sources for event timestamps traced via perf.
This feature is sought by people who'd like to merge perf generated events with external events that were measured with different clocks:
- cluster wide profiling
- for system wide tracing with user-space events,
- JIT profiling events
etc. Matching perf tooling support is added as well, available via the -k, --clockid <clockid> parameter to perf record et al.
(Peter Zijlstra)
Hardware enablement kernel changes:
- x86 Intel Processor Trace (PT) support: which is a hardware tracer on steroids, available on Broadwell CPUs.
The hardware trace stream is directly output into the user-space ring-buffer, using the 'AUX' data format extension that was added to the perf core to support hardware constraints such as the necessity to have the tracing buffer physically contiguous.
This patch-set was developed for two years and this is the result. A simple way to make use of this is to use BTS tracing, the PT driver emulates BTS output - available via the 'intel_bts' PMU. More explicit PT specific tooling support is in the works as well - will probably be ready by 4.2.
(Alexander Shishkin, Peter Zijlstra)
- x86 Intel Cache QoS Monitoring (CQM) support: this is a hardware feature of Intel Xeon CPUs that allows the measurement and allocation/partitioning of caches to individual workloads.
These kernel changes expose the measurement side as a new PMU driver, which exposes various QoS related PMU events. (The partitioning change is work in progress and is planned to be merged as a cgroup extension.)
(Matt Fleming, Peter Zijlstra; CPU feature detection by Peter P Waskiewicz Jr)
- x86 Intel Haswell LBR call stack support: this is a new Haswell feature that allows the hardware recording of call chains, plus tooling support. To activate this feature you have to enable it via the new 'lbr' call-graph recording option:
perf record --call-graph lbr perf report
or:
perf top --call-graph lbr
This hardware feature is a lot faster than stack walk or dwarf based unwinding, but has some limitations:
- It reuses the current LBR facility, so LBR call stack and branch record can not be enabled at the same time.
- It is only available for user-space callchains.
(Yan, Zheng)
- x86 Intel Broadwell CPU support and various event constraints and event table fixes for earlier models.
(Andi Kleen)
- x86 Intel HT CPUs event scheduling workarounds. This is a complex CPU bug affecting the SNB,IVB,HSW families that results in counter value corruption. The mitigation code is automatically enabled and is transparent.
(Maria Dimakopoulou, Stephane Eranian)
The perf tooling side had a ton of changes in this cycle as well, so I'm only able to list the user visible changes here, in addition to the tooling changes outlined above:
User visible changes affecting all tools:
- Improve support of compressed kernel modules (Jiri Olsa) - Save DSO loading errno to better report errors (Arnaldo Carvalho de Melo) - Bash completion for subcommands (Yunlong Song) - Add 'I' event modifier for perf_event_attr.exclude_idle bit (Jiri Olsa) - Support missing -f to override perf.data file ownership. (Yunlong Song) - Show the first event with an invalid filter (David Ahern, Arnaldo Carvalho de Melo)
User visible changes in individual tools:
'perf data':
New tool for converting perf.data to other formats, initially for the CTF (Common Trace Format) from LTTng (Jiri Olsa, Sebastian Siewior)
'perf diff':
Add --kallsyms option (David Ahern)
'perf list':
Allow listing events with 'tracepoint' prefix (Yunlong Song)
Sort the output of the command (Yunlong Song)
'perf kmem':
Respect -i option (Jiri Olsa)
Print big numbers using thousands' group (Namhyung Kim)
Allow -v option (Namhyung Kim)
Fix alignment of slab result table (Namhyung Kim)
'perf probe':
Support multiple probes on different binaries on the same command line (Masami Hiramatsu)
Support unnamed union/structure members data collection. (Masami Hiramatsu)
Check kprobes blacklist when adding new events. (Masami Hiramatsu)
'perf record':
Teach 'perf record' about perf_event_attr.clockid (Peter Zijlstra)
Support recording running/enabled time (Andi Kleen)
'perf sched':
Improve the performance of 'perf sched replay' on high CPU core count machines (Yunlong Song)
'perf report' and 'perf top':
Allow annotating entries in callchains in the hists browser (Arnaldo Carvalho de Melo)
Indicate which callchain entries are annotated in the TUI hists browser (Arnaldo Carvalho de Melo)
Add pid/tid filtering to 'report' and 'script' commands (David Ahern)
Consider PERF_RECORD_ events with cpumode == 0 in 'perf top', removing one cause of long term memory usage buildup, i.e. not processing PERF_RECORD_EXIT events (Arnaldo Carvalho de Melo)
'perf stat':
Report unsupported events properly (Suzuki K. Poulose)
Output running time and run/enabled ratio in CSV mode (Andi Kleen)
'perf trace':
Handle legacy syscalls tracepoints (David Ahern, Arnaldo Carvalho de Melo)
Only insert blank duration bracket when tracing syscalls (Arnaldo Carvalho de Melo)
Filter out the trace pid when no threads are specified (Arnaldo Carvalho de Melo)
Dump stack on segfaults (Arnaldo Carvalho de Melo)
No need to explicitely enable evsels for workload started from perf, let it be enabled via perf_event_attr.enable_on_exec, removing some events that take place in the 'perf trace' before a workload is really started by it. (Arnaldo Carvalho de Melo)
Allow mixing with tracepoints and suppressing plain syscalls. (Arnaldo Carvalho de Melo)
There's also been a ton of infrastructure work done, such as the split-out of perf's build system into tools/build/ and other changes - see the shortlog and changelog for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (358 commits) perf/x86/intel/pt: Clean up the control flow in pt_pmu_hw_init() perf evlist: Fix type for references to data_head/tail perf probe: Check the orphaned -x option perf probe: Support multiple probes on different binaries perf buildid-list: Fix segfault when show DSOs with hits perf tools: Fix cross-endian analysis perf tools: Fix error path to do closedir() when synthesizing threads perf tools: Fix synthesizing fork_event.ppid for non-main thread perf tools: Add 'I' event modifier for exclude_idle bit perf report: Don't call map__kmap if map is NULL. perf tests: Fix attr tests perf probe: Fix ARM 32 building error perf tools: Merge all perf_event_attr print functions perf record: Add clockid parameter perf sched replay: Use replay_repeat to calculate the runavg of cpu usage instead of the default value 10 perf sched replay: Support using -f to override perf.data file ownership perf sched replay: Fix the EMFILE error caused by the limitation of the maximum open files perf sched replay: Handle the dead halt of sem_wait when create_tasks() fails for any task perf sched replay: Fix the segmentation fault problem caused by pr_err in threads perf sched replay: Realloc the memory of pid_to_task stepwise to adapt to the different pid_max configurations ...
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Revision tags: v4.0, v4.0-rc7 |
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6645f318 |
| 03-Apr-2015 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'perf-core-for-mingo' 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:
User visible changes:
Merge tag 'perf-core-for-mingo' 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:
User visible changes:
- Support unnamed union/structure members data collection in 'perf probe'. (Masami Hiramatsu)
- Support missing -f to override perf.data file ownership. (Yunlong Song)
Infrastructure changes:
- No need to lookup thread twice when processing samples in 'perf script'. (Arnaldo Carvalho de Melo)
- No need to pass thread twice to the scripting callbacks. (Arnaldo Carvalho de Melo)
- No need to pass thread twice to the db-export facility. (Arnaldo Carvalho de Melo)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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9e3b6ec1 |
| 02-Apr-2015 |
Yunlong Song <yunlong.song@huawei.com> |
perf evlist: Support using -f to override perf.data file ownership
Enable perf evlist to use perf.data when it is not owned by current user or root.
Example:
# perf record ls # chown Yunlong.Son
perf evlist: Support using -f to override perf.data file ownership
Enable perf evlist to use perf.data when it is not owned by current user or root.
Example:
# perf record ls # chown Yunlong.Song:Yunlong.Song perf.data # ls -al perf.data -rw------- 1 Yunlong.Song Yunlong.Song 28260 Apr 2 10:18 perf.data # id uid=0(root) gid=0(root) groups=0(root),64(pkcs11)
Before this patch:
# perf evlist File perf.data not owned by current user or root (use -f to override) # perf evlist -f Error: unknown switch `f'
usage: perf evlist [<options>]
-i, --input <file> Input file name -F, --freq Show the sample frequency -v, --verbose Show all event attr details -g, --group Show event group information
As shown above, the -f option does not work at all.
After this patch:
# perf evlist File perf.data not owned by current user or root (use -f to override) # perf evlist -f cycles
As shown above, the -f option really works now.
Signed-off-by: Yunlong Song <yunlong.song@huawei.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1427982439-27388-2-git-send-email-yunlong.song@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Revision tags: v4.0-rc6, v4.0-rc5, v4.0-rc4, v4.0-rc3, v4.0-rc2, v4.0-rc1 |
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4ba24fef |
| 10-Feb-2015 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare first round of input updates for 3.20.
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Revision tags: v3.19, v3.19-rc7, v3.19-rc6, v3.19-rc5 |
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0c49cd29 |
| 15-Jan-2015 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v3.19-rc4' into next
Merge with mainline to bring in the latest thermal and other changes.
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Revision tags: v3.19-rc4, v3.19-rc3, v3.19-rc2, v3.19-rc1, v3.18, v3.18-rc7, v3.18-rc6 |
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aeb8f932 |
| 23-Nov-2014 |
Emmanuel Grumbach <emmanuel.grumbach@intel.com> |
Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next
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a0200108 |
| 20-Nov-2014 |
Jiri Kosina <jkosina@suse.cz> |
Merge Linus' tree to be be to apply submitted patches to newer code than current trivial.git base
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b10778a0 |
| 19-Nov-2014 |
James Morris <james.l.morris@oracle.com> |
Merge commit 'v3.17' into next
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760a52e8 |
| 18-Nov-2014 |
Johannes Berg <johannes.berg@intel.com> |
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
This brings in some mwifiex changes that further patches will need to work on top to not cause merge conflicts.
Signed-off-by:
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
This brings in some mwifiex changes that further patches will need to work on top to not cause merge conflicts.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Revision tags: v3.18-rc5 |
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890ca861 |
| 12-Nov-2014 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v3.18-rc4' into x86/cleanups, to refresh the tree before pulling new changes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Revision tags: v3.18-rc4, v3.18-rc3 |
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d5432503 |
| 27-Oct-2014 |
Takashi Iwai <tiwai@suse.de> |
Merge tag 'asoc-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.18
A few small driver fixes for v3.18 plus the removal of the s6000 suppo
Merge tag 'asoc-v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.18
A few small driver fixes for v3.18 plus the removal of the s6000 support since the relevant chip is no longer supported in mainline.
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