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| author | Namhyung Kim <namhyung@kernel.org> | 2016-01-07 14:41:53 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-08 19:15:46 +0300 |
| commit | 14cbfbeb76540cc0c53fbb0ba34b3a4900ebe40f (patch) | |
| tree | 51bc19a46a576c64d784b6c0713eee59c8f73de3 /tools/perf/config | |
| parent | fc284be9d88528dd2a28d5471e40a6acde6c3036 (diff) | |
| download | linux-14cbfbeb76540cc0c53fbb0ba34b3a4900ebe40f.tar.xz | |
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>
Diffstat (limited to 'tools/perf/config')
| -rw-r--r-- | tools/perf/config/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index 18b2f96d0941..254d06e39bea 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -691,6 +691,7 @@ sharedir = $(prefix)/share template_dir = share/perf-core/templates STRACE_GROUPS_DIR = share/perf-core/strace/groups htmldir = share/doc/perf-doc +tipdir = share/doc/perf-tip ifeq ($(prefix),/usr) sysconfdir = /etc ETC_PERFCONFIG = $(sysconfdir)/perfconfig @@ -717,6 +718,7 @@ infodir_SQ = $(subst ','\'',$(infodir)) perfexecdir_SQ = $(subst ','\'',$(perfexecdir)) template_dir_SQ = $(subst ','\'',$(template_dir)) htmldir_SQ = $(subst ','\'',$(htmldir)) +tipdir_SQ = $(subst ','\'',$(tipdir)) prefix_SQ = $(subst ','\'',$(prefix)) sysconfdir_SQ = $(subst ','\'',$(sysconfdir)) libdir_SQ = $(subst ','\'',$(libdir)) @@ -724,12 +726,15 @@ libdir_SQ = $(subst ','\'',$(libdir)) ifneq ($(filter /%,$(firstword $(perfexecdir))),) perfexec_instdir = $(perfexecdir) STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR) +tip_instdir = $(tipdir) else perfexec_instdir = $(prefix)/$(perfexecdir) STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR) +tip_instdir = $(prefix)/$(tipdir) endif perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir)) STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR)) +tip_instdir_SQ = $(subst ','\'',$(tip_instdir)) # If we install to $(HOME) we keep the traceevent default: # $(HOME)/.traceevent/plugins @@ -770,6 +775,7 @@ $(call detected_var,ETC_PERFCONFIG_SQ) $(call detected_var,STRACE_GROUPS_DIR_SQ) $(call detected_var,prefix_SQ) $(call detected_var,perfexecdir_SQ) +$(call detected_var,tipdir_SQ) $(call detected_var,LIBDIR) $(call detected_var,GTK_CFLAGS) $(call detected_var,PERL_EMBED_CCOPTS) |