linux/tools/perf
Adrian Hunter 1d865c06f5 perf scripts python: call-graph-from-sql.py: Provide better default column sizes
Set initial column sizes to improve initial display.

Committer testing:

Extended instructions on testing this, using the sqlite variant:

Make sure you have the SQLite glue for python+Qt installed, on fedora 27
I used:

  # dnf install python-pyside

Collect some PT samples, say 5-secs worth, system wide:

  # perf record -r 10 -e intel_pt//u -a sleep 5
  [ perf record: Woken up 49 times to write data ]
  [ perf record: Captured and wrote 96.131 MB perf.data ]

This results in this perf.data file:

  # ls -larth perf.data
  -rw-------. 1 root root 97M Oct 23 10:11 perf.data

With the following attributes:

  # perf evlist -v
  intel_pt//u: type: 8, size: 112, config: 0x300e601, { sample_period, sample_freq }: 1, sample_type: IP|TID|TIME|CPU|IDENTIFIER, read_format: ID, disabled: 1, inherit: 1, exclude_kernel: 1, exclude_hv: 1, sample_id_all: 1
  dummy:u: type: 1, size: 112, config: 0x9, { sample_period, sample_freq }: 1, sample_type: IP|TID|TIME|CPU|IDENTIFIER, read_format: ID, inherit: 1, exclude_kernel: 1, exclude_hv: 1, mmap: 1, comm: 1, task: 1, sample_id_all: 1, mmap2: 1, comm_exec: 1, context_switch: 1
  #

Then generate the "pt_example" tables using:

  # perf script -s ~/libexec/perf-core/scripts/python/export-to-sqlite.py pt_example branches calls
  2018-10-23 10:56:59.177711 Creating database...
  2018-10-23 10:56:59.195842 Writing records...
   instruction trace error type 1 cpu 2 pid 1644 tid 1644 ip 0x263984516750 code 5: Failed to get instruction
   instruction trace error type 1 cpu 2 pid 1644 tid 1644 ip 0x7f26e116fd20 code 6: Trace doesn't match instruction
   instruction trace error type 1 cpu 2 pid 1644 tid 1644 ip 0x7f26e162c9ee code 6: Trace doesn't match instruction
   instruction trace error type 1 cpu 2 pid 1644 tid 1644 ip 0x7f26e9ce831a code 6: Trace doesn't match instruction
  <SNIP>
   instruction trace error type 1 cpu 0 pid 1644 tid 1644 ip 0x7f26e13d07b4 code 6: Trace doesn't match instruction
  Warning:
  132 instruction trace errors
  2018-10-23 11:25:25.015717 Adding indexes
  2018-10-23 11:25:28.788061 Done
  #

In my example, that perf.data file generated this db:

  # file pt_example
  pt_example: SQLite 3.x database, last written using SQLite version 3020001
  [root@seventh perf]# ls -lah pt_example
  -rw-r--r--. 1 root root 6.6G Oct 23 11:25 pt_example
  #

Then use this python script to use that db and provide a GUI:

  $ python tools/perf/scripts/python/call-graph-from-sql.py pt_example branches calls

I compared the column widths before this patch and after applying it,
the visual results match the patch intent.

The following patches will refer to this set of instructions in the "Committer
Testing" section.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20181001062853.28285-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-10-23 14:15:30 -03:00
..
arch perf arm64: Fix generate system call table failed with /tmp mounted with noexec 2018-10-19 11:56:57 -03:00
bench tools arch: Update arch/x86/lib/memcpy_64.S copy used in 'perf bench mem memcpy' 2018-07-30 12:36:51 -03:00
Documentation perf trace: Introduce per-event maximum number of events property 2018-10-22 14:27:12 -03:00
examples/bpf perf augmented_syscalls: Avoid optimization to pass older BPF validators 2018-09-03 15:29:53 -03:00
include/bpf perf bpf: Add syscall_exit() helper 2018-08-30 15:52:20 -03:00
jvmti perf tools: Fix compilation errors on gcc8 2018-07-11 09:39:57 -04:00
pmu-events Merge remote-tracking branch 'tip/perf/urgent' into perf/core 2018-10-18 11:13:01 -03:00
python perf python: Make twatch.py work with both python2 and python3 2018-02-19 12:28:08 -03:00
scripts perf scripts python: call-graph-from-sql.py: Provide better default column sizes 2018-10-23 14:15:30 -03:00
tests perf test: S390 does not support watchpoints in test 22 2018-10-08 14:23:44 -03:00
trace perf trace beauty: Reorganize 'struct sockaddr *' beautifier 2018-08-30 15:52:20 -03:00
ui perf annotate: Add support to toggle percent type 2018-08-08 15:55:52 -03:00
util perf trace: Introduce per-event maximum number of events property 2018-10-22 14:27:12 -03:00
.gitignore perf tools: Add trace/beauty/generated/ into .gitignore 2018-02-05 13:58:02 -03:00
Build perf trace: Remove audit-libs dependency if syscall tables are present 2018-01-23 09:51:38 -03:00
builtin-annotate.c perf tools: Remove perf_tool from event_op2 2018-09-19 10:25:10 -03:00
builtin-bench.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
builtin-buildid-cache.c perf buildid-cache: Warn --purge-all failures 2018-05-15 10:32:16 -03:00
builtin-buildid-list.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-c2c.c perf c2c report: Fix crash for empty browser 2018-07-31 10:53:20 -03:00
builtin-config.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-data.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
builtin-diff.c perf hists: Clarify callchain disabling when available 2018-07-24 14:37:33 -03:00
builtin-evlist.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-ftrace.c perf ftrace: Append an EOL when write tracing files 2018-02-19 09:49:12 -03:00
builtin-help.c perf tools: Rename HAVE_SYSCALL_TABLE to HAVE_SYSCALL_TABLE_SUPPORT 2018-04-12 10:33:31 -03:00
builtin-inject.c perf tools: Report itrace options in help 2018-09-19 15:06:59 -03:00
builtin-kallsyms.c perf machine: Ditch find_kernel_function variants 2018-04-30 12:20:54 -03:00
builtin-kmem.c tools lib traceevent, perf tools: Rename 'enum pevent_flag' to 'enum tep_flag' 2018-08-13 15:22:18 -03:00
builtin-kvm.c perf tools: Ditch the symbol_conf.nr_events global 2018-06-04 10:28:52 -03:00
builtin-list.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-lock.c Merge branch 'linus' into perf/core, to fix conflicts 2017-11-07 10:30:18 +01:00
builtin-mem.c perf mem: Allow all record/report options 2018-04-18 15:35:48 -03:00
builtin-probe.c perf tools: No need to check if the argument to __get() function is NULL 2018-06-04 10:28:50 -03:00
builtin-record.c perf record: Encode -k clockid frequency into Perf trace 2018-10-18 11:16:38 -03:00
builtin-report.c Merge remote-tracking branch 'tip/perf/urgent' into perf/core 2018-10-18 11:13:01 -03:00
builtin-sched.c perf sched: Use sched->show_callchain where appropriate 2018-06-05 10:09:54 -03:00
builtin-script.c perf script: Flush output stream after events in verbose mode 2018-10-22 14:27:11 -03:00
builtin-stat.c perf stat: Poll for monitored tasks being alive 2018-10-22 12:37:52 -03:00
builtin-timechart.c perf thread: Make thread__find_symbol() return the symbol searched 2018-04-26 13:47:09 -03:00
builtin-top.c perf hists: Clarify callchain disabling when available 2018-07-24 14:37:33 -03:00
builtin-trace.c perf trace: Introduce per-event maximum number of events property 2018-10-22 14:27:12 -03:00
builtin-version.c perf version: Print status for syscall_table 2018-04-12 10:33:34 -03:00
builtin.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
check-headers.sh tools include: Adopt linux/bits.h 2018-10-08 14:23:43 -03:00
command-list.txt perf help: Add missing subcommand version 2018-09-19 14:53:36 -03:00
CREDITS
design.txt
Makefile perf tools: Disable parallelism for 'make clean' 2018-08-20 08:54:58 -03:00
Makefile.config perf tools: Fix use of alternatives to find JDIR 2018-10-16 12:06:47 -03:00
Makefile.perf Merge remote-tracking branch 'tip/perf/urgent' into perf/core 2018-10-18 11:13:01 -03:00
MANIFEST perf tools: Get all of tools/{arch,include}/ in the MANIFEST 2017-09-25 10:39:43 -03:00
perf-archive.sh License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-completion.sh perf tools: Auto-complete for events with ':' 2017-12-27 12:16:00 -03:00
perf-read-vdso.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perf-sys.h Drop a bunch of metag references 2018-02-23 14:29:59 +00:00
perf-with-kcore.sh
perf.c perf tools: Remove dead quote.[ch] code 2018-06-04 10:28:50 -03:00
perf.h perf record: Encode -k clockid frequency into Perf trace 2018-10-18 11:16:38 -03:00