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ab665252 |
| 14-Mar-2016 |
Mike Marshall <hubcap@omnibond.com> |
Orangefs: merge to v4.5
Merge tag 'v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into current
Linux 4.5
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#
79e24da0 |
| 01-Mar-2016 |
Mark Brown <broonie@kernel.org> |
Merge branch 'topic/update-bits' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into asoc-rcar
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#
e5451c8f |
| 23-Feb-2016 |
Laxman Dewangan <ldewangan@nvidia.com> |
Merge remote-tracking branch 'linusw-gpio/for-next' into devm_gpiochip
Base for demv_gpiochip_add_data() and devm_gpiochip_remove().
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8174b35f |
| 22-Feb-2016 |
Mark Brown <broonie@kernel.org> |
Merge tag 'v4.5-rc5' into asoc-mtk
Linux 4.5-rc5
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#
05fd934b |
| 12-Feb-2016 |
Daniel Vetter <daniel.vetter@ffwll.ch> |
Merge tag 'topic/drm-misc-2016-02-12' into drm-intel-next-queued
Backmerge to get at the new encoder_mask support in atomic helpers.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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#
fcdcc796 |
| 09-Feb-2016 |
Mark Brown <broonie@kernel.org> |
Merge branch 'topic/acpi' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-pxa2xx
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#
03e075b3 |
| 03-Feb-2016 |
Ingo Molnar <mingo@kernel.org> |
Merge branch 'linus' into efi/core, to refresh the branch and to pick up recent fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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76b36fa8 |
| 29-Jan-2016 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'v4.5-rc1' into x86/asm, to refresh the branch before merging new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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b8bc3bde |
| 26-Jan-2016 |
Paolo Bonzini <pbonzini@redhat.com> |
Merge tag 'kvm-s390-master-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: Fixes for kvm/master (targeting 4.5)
1. Fallout of some bigger floating point/v
Merge tag 'kvm-s390-master-4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: Fixes for kvm/master (targeting 4.5)
1. Fallout of some bigger floating point/vector rework in s390 - memory leak -> stable 4.3+ - memory overwrite -> stable 4.4+
2. enable KVM-VFIO for s390
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#
7e3b1207 |
| 25-Jan-2016 |
Tony Lindgren <tony@atomide.com> |
Merge branch 'enable-devices' into omap-for-v4.5/fixes
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#
34bbea91 |
| 25-Jan-2016 |
Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
Merge tag 'v4.5-rc1' into patchwork
Linux 4.5-rc1
* tag 'v4.5-rc1': (11309 commits) Linux 4.5-rc1 ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: Combine multiple te
Merge tag 'v4.5-rc1' into patchwork
Linux 4.5-rc1
* tag 'v4.5-rc1': (11309 commits) Linux 4.5-rc1 ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: Combine multiple telemetry entries intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs vmstat: Remove BUG_ON from vmstat_update MIPS: zboot: Add support for serial debug using the PROM MIPS: zboot: Avoid useless rebuilds MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function MIPS: bcm963xx: Update bcm_tag field image_sequence MIPS: bcm963xx: Move extended flash address to bcm_tag header file MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure MIPS: bcm63xx: nvram: Use nvram structure definition from header file MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure MAINTAINERS: Add KVM for MIPS entry MIPS: KVM: Add missing newline to kvm_err() MIPS: Move KVM specific opcodes into asm/inst.h MIPS: KVM: Use cacheops.h definitions MIPS: Break down cacheops.h definitions MIPS: Use EXCCODE_ constants with set_except_vector() ...
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#
7a26019f |
| 15-Jan-2016 |
David S. Miller <davem@davemloft.net> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
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#
725da8de |
| 12-Jan-2016 |
David S. Miller <davem@davemloft.net> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
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#
747a9b0a |
| 14-Jan-2016 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "Tooling fixes, the biggest patch is one that decouples the kernel's
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "Tooling fixes, the biggest patch is one that decouples the kernel's list.h from tooling list.h"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) perf tools: Fallback to srcdir/Documentation/tips.txt perf ui/tui: Print helpline message as is perf tools: Set and pass DOCDIR to builtin-report.c perf tools: Add file_only config option to strlist perf tools: Add more usage tips perf record: Add --buildid-all option tools subcmd: Add missing NORETURN define for parse-options.h tools: Fix formatting of the "make -C tools" help message tools: Make list.h self-sufficient perf tools: Fix mmap2 event allocation in synthesize code perf stat: Fix recort_usage typo perf test: Reset err after using it hold errcode in hist testcases perf test: Fix false TEST_OK result for 'perf test hist' tools build: Add BPF feature check to test-all perf bpf: Fix build breakage due to libbpf tools: Move Makefile.arch from perf/config to tools/scripts perf tools: Fix PowerPC native building perf tools: Fix phony build target for build-test perf tools: Add -lutil in python lib list for broken python-config perf tools: Add missing sources to perf's MANIFEST ...
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#
c3660884 |
| 13-Jan-2016 |
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/urgent
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
New, user visible f
Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
New, user visible features:
- Add --buildid-all option to 'perf record' to avoid processing samples, just collecting build-ids for _all_ the DSOs that appears in PERF_RECORD_MMAP records (Namhyung Kim)
- Add some more usage tips to appear in the hists browser (top & report) (Namhyung Kim, Andi Kleen)
- Fix mmap2 event allocation in synthesize code, where we were allocating space just for PERF_RECORD_MMAP, the older variant, which could lead to corner case problems (Wang Nan)
Infrastructure fixes:
- Make list.h self-sufficient, removing one more reference to kernel headers that lead to recent breakage when some rculist change was made in the kernel sources. (Josh Poimboeuf)
Add missing NORETURN define for parse-options.h in tools/lib/subcmd (Josh Poimboeuf)
- Fallback to srcdir/Documentation/ when not finding tips.txt elsewhere (Namhyung Kim)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
ddb5388f |
| 12-Jan-2016 |
David S. Miller <davem@davemloft.net> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
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#
84cfac7f |
| 09-Jan-2016 |
Namhyung Kim <namhyung@kernel.org> |
perf tools: Set and pass DOCDIR to builtin-report.c
It'll be used to locate perf document directory to find tips.txt in case it's not installed on the system.
Signed-off-by: Namhyung Kim <namhyung@
perf tools: Set and pass DOCDIR to builtin-report.c
It'll be used to locate perf document directory to find tips.txt in case it's not installed on the system.
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452334589-8782-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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#
c0c57019 |
| 12-Jan-2016 |
Ingo Molnar <mingo@kernel.org> |
Merge commit 'linus' into x86/urgent, to pick up recent x86 changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
5cb52b5e |
| 11-Jan-2016 |
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:
- Intel Knights Landing support. (Harish C
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:
- Intel Knights Landing support. (Harish Chegondi)
- Intel Broadwell-EP uncore PMU support. (Kan Liang)
- Core code improvements. (Peter Zijlstra.)
- Event filter, LBR and PEBS fixes. (Stephane Eranian)
- Enable cycles:pp on Intel Atom. (Stephane Eranian)
- Add cycles:ppp support for Skylake. (Andi Kleen)
- Various x86 NMI overhead optimizations. (Andi Kleen)
- Intel PT enhancements. (Takao Indoh)
- AMD cache events fix. (Vince Weaver)
Tons of tooling changes:
- Show random perf tool tips in the 'perf report' bottom line (Namhyung Kim)
- perf report now defaults to --group if the perf.data file has grouped events, try it with:
# perf record -e '{cycles,instructions}' -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.093 MB perf.data (1247 samples) ] # perf report # Samples: 1K of event 'anon group { cycles, instructions }' # Event count (approx.): 1955219195 # # Overhead Command Shared Object Symbol
2.86% 0.22% swapper [kernel.kallsyms] [k] intel_idle 1.05% 0.33% firefox libxul.so [.] js::SetObjectElement 1.05% 0.00% kworker/0:3 [kernel.kallsyms] [k] gen6_ring_get_seqno 0.88% 0.17% chrome chrome [.] 0x0000000000ee27ab 0.65% 0.86% firefox libxul.so [.] js::ValueToId<(js::AllowGC)1> 0.64% 0.23% JS Helper libxul.so [.] js::SplayTree<js::jit::LiveRange*, js::jit::LiveRange>::splay 0.62% 1.27% firefox libxul.so [.] js::GetIterator 0.61% 1.74% firefox libxul.so [.] js::NativeSetProperty 0.61% 0.31% firefox libxul.so [.] js::SetPropertyByDefining
- Introduce the 'perf stat record/report' workflow:
Generate perf.data files from 'perf stat', to tap into the scripting capabilities perf has instead of defining a 'perf stat' specific scripting support to calculate event ratios, etc.
Simple example:
$ perf stat record -e cycles usleep 1
Performance counter stats for 'usleep 1':
1,134,996 cycles
0.000670644 seconds time elapsed
$ perf stat report
Performance counter stats for '/home/acme/bin/perf stat record -e cycles usleep 1':
1,134,996 cycles
0.000670644 seconds time elapsed
$
It generates PERF_RECORD_ userspace records to store the details:
$ perf report -D | grep PERF_RECORD 0xf0 [0x28]: PERF_RECORD_THREAD_MAP nr: 1 thread: 27637 0x118 [0x12]: PERF_RECORD_CPU_MAP nr: 1 cpu: 65535 0x12a [0x40]: PERF_RECORD_STAT_CONFIG 0x16a [0x30]: PERF_RECORD_STAT -1 -1 0x19a [0x40]: PERF_RECORD_MMAP -1/0: [0xffffffff81000000(0x1f000000) @ 0xffffffff81000000]: x [kernel.kallsyms]_text 0x1da [0x18]: PERF_RECORD_STAT_ROUND [acme@ssdandy linux]$
An effort was made to make perf.data files generated like this to not generate cryptic messages when processed by older tools.
The 'perf script' bits need rebasing, will go up later.
- Make command line options always available, even when they depend on some feature being enabled, warning the user about use of such options (Wang Nan)
- Support hw breakpoint events (mem:0xAddress) in the default output mode in 'perf script' (Wang Nan)
- Fixes and improvements for supporting annotating ARM binaries, support ARM call and jump instructions, more work needed to have arch specific stuff separated into tools/perf/arch/*/annotate/ (Russell King)
- Add initial 'perf config' command, for now just with a --list command to the contents of the configuration file in use and a basic man page describing its format, commands for doing edits and detailed documentation are being reviewed and proof-read. (Taeung Song)
- Allows BPF scriptlets specify arguments to be fetched using DWARF info, using a prologue generated at compile/build time (He Kuang, Wang Nan)
- Allow attaching BPF scriptlets to module symbols (Wang Nan)
- Allow attaching BPF scriptlets to userspace code using uprobe (Wang Nan)
- BPF programs now can specify 'perf probe' tunables via its section name, separating key=val values using semicolons (Wang Nan)
Testing some of these new BPF features:
Use case: get callchains when receiving SSL packets, filter then in the kernel, at arbitrary place.
# cat ssl.bpf.c #define SEC(NAME) __attribute__((section(NAME), used))
struct pt_regs;
SEC("func=__inet_lookup_established hnum") int func(struct pt_regs *ctx, int err, unsigned short port) { return err == 0 && port == 443; }
char _license[] SEC("license") = "GPL"; int _version SEC("version") = LINUX_VERSION_CODE; # # perf record -a -g -e ssl.bpf.c ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.787 MB perf.data (3 samples) ] # perf script | head -30 swapper 0 [000] 58783.268118: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb 8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 8572a8 process_backlog (/lib/modules/4.3.0+/build/vmlinux) 856b11 net_rx_action (/lib/modules/4.3.0+/build/vmlinux) 2a284b __do_softirq (/lib/modules/4.3.0+/build/vmlinux) 2a2ba3 irq_exit (/lib/modules/4.3.0+/build/vmlinux) 96b7a4 do_IRQ (/lib/modules/4.3.0+/build/vmlinux) 969807 ret_from_intr (/lib/modules/4.3.0+/build/vmlinux) 2dede5 cpu_startup_entry (/lib/modules/4.3.0+/build/vmlinux) 95d5bc rest_init (/lib/modules/4.3.0+/build/vmlinux) 1163ffa start_kernel ([kernel.vmlinux].init.text) 11634d7 x86_64_start_reservations ([kernel.vmlinux].init.text) 1163623 x86_64_start_kernel ([kernel.vmlinux].init.text)
qemu-system-x86 9178 [003] 58785.792417: perf_bpf_probe:func: (ffffffff816a0f60) hnum=0x1bb 8a0f61 __inet_lookup_established (/lib/modules/4.3.0+/build/vmlinux) 896def ip_rcv_finish (/lib/modules/4.3.0+/build/vmlinux) 8976c2 ip_rcv (/lib/modules/4.3.0+/build/vmlinux) 855eba __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) 856660 netif_receive_skb_internal (/lib/modules/4.3.0+/build/vmlinux) 8566ec netif_receive_skb_sk (/lib/modules/4.3.0+/build/vmlinux) 430a br_handle_frame_finish ([bridge]) 48bc br_handle_frame ([bridge]) 855f44 __netif_receive_skb_core (/lib/modules/4.3.0+/build/vmlinux) 8565d8 __netif_receive_skb (/lib/modules/4.3.0+/build/vmlinux) #
- Use 'perf probe' various options to list functions, see what variables can be collected at any given point, experiment first collecting without a filter, then filter, use it together with 'perf trace', 'perf top', with or without callchains, if it explodes, please tell us!
- Introduce a new callchain mode: "folded", that will list per line representations of all callchains for a give histogram entry, facilitating 'perf report' output processing by other tools, such as Brendan Gregg's flamegraph tools (Namhyung Kim)
E.g:
# perf report | grep -v ^# | head 18.37% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry | ---cpu_startup_entry | |--12.07%--start_secondary | --6.30%--rest_init start_kernel x86_64_start_reservations x86_64_start_kernel #
Becomes, in "folded" mode:
# perf report -g folded | grep -v ^# | head -5 18.37% 0.00% swapper [kernel.kallsyms] [k] cpu_startup_entry 12.07% cpu_startup_entry;start_secondary 6.30% cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 16.90% 0.00% swapper [kernel.kallsyms] [k] call_cpuidle 11.23% call_cpuidle;cpu_startup_entry;start_secondary 5.67% call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 16.90% 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter 11.23% cpuidle_enter;call_cpuidle;cpu_startup_entry;start_secondary 5.67% cpuidle_enter;call_cpuidle;cpu_startup_entry;rest_init;start_kernel;x86_64_start_reservations;x86_64_start_kernel 15.12% 0.00% swapper [kernel.kallsyms] [k] cpuidle_enter_state #
The user can also select one of "count", "period" or "percent" as the first column.
... and lots of infrastructure enhancements, plus fixes and other changes, features I failed to list - see the shortlog and the git log for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (271 commits) perf evlist: Add --trace-fields option to show trace fields perf record: Store data mmaps for dwarf unwind perf libdw: Check for mmaps also in MAP__VARIABLE tree perf unwind: Check for mmaps also in MAP__VARIABLE tree perf unwind: Use find_map function in access_dso_mem perf evlist: Remove perf_evlist__(enable|disable)_event functions perf evlist: Make perf_evlist__open() open evsels with their cpus and threads (like perf record does) perf report: Show random usage tip on the help line perf hists: Export a couple of hist functions perf diff: Use perf_hpp__register_sort_field interface perf tools: Add overhead/overhead_children keys defaults via string perf tools: Remove list entry from struct sort_entry perf tools: Include all tools/lib directory for tags/cscope/TAGS targets perf script: Align event name properly perf tools: Add missing headers in perf's MANIFEST perf tools: Do not show trace command if it's not compiled in perf report: Change default to use event group view perf top: Decay periods in callchains tools lib: Move bitmap.[ch] from tools/perf/ to tools/{lib,include}/ tools lib: Sync tools/lib/find_bit.c with the kernel ...
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#
3eb9ede2 |
| 09-Jan-2016 |
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:
New features:
- Allo
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:
New features:
- Allow using trace events fields as sort order keys, making 'perf evlist --trace_fields' show those, and then the user can select a subset and use like:
perf top -e sched:sched_switch -s prev_comm,next_comm
That works as well in 'perf report' when handling files containing tracepoints.
The default when just tracepoint events are found in a perf.data file is to format it like ftrace, using the libtraceevent formatters, plugins, etc (Namhyung Kim)
- Add support in 'perf script' to process 'perf stat record' generated files, culminating in a python perf script that calculates CPI (Cycles per Instruction) (Jiri Olsa)
- Show random perf tool tips in the 'perf report' bottom line (Namhyung Kim)
- perf report now defaults to --group if the perf.data file has grouped events, try it with:
# perf record -e '{cycles,instructions}' -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.093 MB perf.data (1247 samples) ] # perf report # Samples: 1K of event 'anon group { cycles, instructions }' # Event count (approx.): 1955219195 # # Overhead Command Shared Object Symbol
2.86% 0.22% swapper [kernel.kallsyms] [k] intel_idle 1.05% 0.33% firefox libxul.so [.] js::SetObjectElement 1.05% 0.00% kworker/0:3 [kernel.kallsyms] [k] gen6_ring_get_seqno 0.88% 0.17% chrome chrome [.] 0x0000000000ee27ab 0.65% 0.86% firefox libxul.so [.] js::ValueToId<(js::AllowGC)1> 0.64% 0.23% JS Helper libxul.so [.] js::SplayTree<js::jit::LiveRange*, js::jit::LiveRange>::splay 0.62% 1.27% firefox libxul.so [.] js::GetIterator 0.61% 1.74% firefox libxul.so [.] js::NativeSetProperty 0.61% 0.31% firefox libxul.so [.] js::SetPropertyByDefining
User visible fixes:
- Coect data mmaps so that the DWARF unwinder can handle usecases needing them, like softice (Jiri Olsa)
- Decay callchains in fractal mode, fixing up cases where 'perf top -g' would show entries with more than 100% (Namhyung Kim)
Infrastructure changes:
- Sync tools/lib with the lib/ in the kernel sources for find_bit.c and move bitmap.[ch] from tools/perf/util/ to tools/lib/ (Arnaldo Carvalho de Melo)
- No need to set attr.sample_freq in some 'perf test' entries that only want to deal with PERF_RECORD_ meta-events, improve a bit error output for CQM test (Arnaldo Carvalho de Melo)
- Fix python binding build, adding some missing object files now required due to cpumap using find_bit stuff (Arnaldo Carvalho de Melo)
- tools/build improvemnts (Jiri Olsa)
- Add more files to cscope/ctags databases (Jiri Olsa)
- Do not show 'trace' in 'perf help' if it is not compiled in (Jiri Olsa)
- Make perf_evlist__open() open evsels with their cpus and threads, like perf record does, making them consistent (Adrian Hunter)
- Fix pmu snapshot initialization bug (Stephane Eranian)
- Add missing headers in perf's MANIFEST (Wang Nan)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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14cbfbeb |
| 07-Jan-2016 |
Namhyung Kim <namhyung@kernel.org> |
perf report: Show random usage tip on the help line
Currently perf report only shows a help message "For a higher level overview, try: perf report --sort comm,dso" unconditionally (even if the sort
perf report: Show random usage tip on the help line
Currently perf report only shows a help message "For a higher level overview, try: perf report --sort comm,dso" unconditionally (even if the sort keys were used). Add more help tips and show randomly.
Load tips from ${prefix}/share/doc/perf-tip/tips.txt file.
$ perf report | tail 0.10% swapper [kernel.vmlinux] [k] irq_exit 0.09% swapper [kernel.vmlinux] [k] flush_smp_call_function_queue 0.08% swapper [kernel.vmlinux] [k] native_write_msr_safe 0.03% swapper [kernel.vmlinux] [k] group_sched_in 0.01% perf [kernel.vmlinux] [k] native_write_msr_safe
# # (Tip: Search options using a keyword: perf report -h <keyword>) #
Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/1452166913-27046-1-git-send-email-namhyung@kernel.org [ Renamed it to perf_tip() and the parameter dirname to dirpath to fix the build on older distros ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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#
b21daaed |
| 18-Dec-2015 |
Ingo Molnar <mingo@kernel.org> |
Merge tag 'perf-core-for-mingo-2.1' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements from Arnaldo Carvalho de Melo:
User visible changes:
-
Merge tag 'perf-core-for-mingo-2.1' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements from Arnaldo Carvalho de Melo:
User visible changes:
- Add record.build-id config option to 'perf record', to allow configuring in the ~/.perfconfig file if and how build-ids should be processed, allowing a permanent setting for options such as -B and -N: (Namhyung Kim)
$ perf record -h -B -N
Usage: perf record [<options>] [<command>] or: perf record [<options>] -- <command> [<options>]
-B, --no-buildid do not collect buildids in perf.data -N, --no-buildid-cache do not update the buildid cache
$
Infrastructure changes:
- Move code for options parsing and subcommand handling from tools/perf/ to tools/lib/subcmd/, so that it can be used by other tools/ living utilities (Josh Poimboeuf)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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096d3558 |
| 15-Dec-2015 |
Josh Poimboeuf <jpoimboe@redhat.com> |
perf tools: Provide subcmd configuration at runtime
Create init functions for exec_cmd.c and pager.c. This allows their configuration to be specified at runtime so they can be split out into a sepa
perf tools: Provide subcmd configuration at runtime
Create init functions for exec_cmd.c and pager.c. This allows their configuration to be specified at runtime so they can be split out into a separate library which can be used by other programs. Their configuration is stored in a shared subcmd_config struct.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/21f5f6b38da72c985a8dcfa185700d03e7eecd1d.1450193761.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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d18929e9 |
| 10-Dec-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:
User visible changes:
- Change default selection
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:
User visible changes:
- Change default selection TUI background color to yellow (Ingo Molnar)
Infrastructure changes:
- Start paving the way to reuse some cmdline functions with other tools/ living utilities (Josh Poimboeuf)
- Reference count fixes using the refcount debugger, unleaking some objects (Masami Hiramatsu)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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0a4bb5da |
| 07-Dec-2015 |
Josh Poimboeuf <jpoimboe@redhat.com> |
perf tools: Move cmd_version() to builtin-version.c
Move cmd_version() to its own file so that help.c can be moved to a library.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <j
perf tools: Move cmd_version() to builtin-version.c
Move cmd_version() to its own file so that help.c can be moved to a library.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/e908b1b68f20ab6d8d33941d5571c23110622e60.1449548395.git.jpoimboe@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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