Messages in this thread Patch in this message | | | Date | Tue, 17 Aug 2021 15:42:24 -0400 | From | Steven Rostedt <> | Subject | [for-next][PATCH 17/19] bootconfig/tracing/ktest: Update ktest example for boot-time tracing |
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From: Masami Hiramatsu <mhiramat@kernel.org>
Update ktest example for the boot-time tracing with histogram options. Note that since the histogram option uses "trace()" action instead of "EVENT()", this updates the matching pattern too.
Link: https://lkml.kernel.org/r/162856130208.203126.4458319094852152589.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> --- .../examples/bootconfigs/boottrace.bconf | 20 ++++++++++++++----- .../examples/bootconfigs/verify-boottrace.sh | 2 +- 2 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/tools/testing/ktest/examples/bootconfigs/boottrace.bconf b/tools/testing/ktest/examples/bootconfigs/boottrace.bconf index 9db64ec589d5..7aa706cccb3b 100644 --- a/tools/testing/ktest/examples/bootconfigs/boottrace.bconf +++ b/tools/testing/ktest/examples/bootconfigs/boottrace.bconf @@ -10,13 +10,23 @@ ftrace.event { } synthetic.initcall_latency { fields = "unsigned long func", "u64 lat" - actions = "hist:keys=func.sym,lat:vals=lat:sort=lat" + hist { + keys = func.sym,lat + values = lat + sort = lat + } } - initcall.initcall_start { - actions = "hist:keys=func:ts0=common_timestamp.usecs" + initcall.initcall_start.hist { + keys = func; + var.ts0 = common_timestamp.usecs } - initcall.initcall_finish { - actions = "hist:keys=func:lat=common_timestamp.usecs-$ts0:onmatch(initcall.initcall_start).initcall_latency(func,$lat)" + initcall.initcall_finish.hist { + keys = func + var.lat = common_timestamp.usecs - $ts0 + onmatch { + event = initcall.initcall_start + trace = initcall_latency, func, $lat + } } } diff --git a/tools/testing/ktest/examples/bootconfigs/verify-boottrace.sh b/tools/testing/ktest/examples/bootconfigs/verify-boottrace.sh index f271940ce7fb..233e95cfcf20 100755 --- a/tools/testing/ktest/examples/bootconfigs/verify-boottrace.sh +++ b/tools/testing/ktest/examples/bootconfigs/verify-boottrace.sh @@ -58,7 +58,7 @@ compare_file_partial "events/synthetic/initcall_latency/enable" "0" compare_file_partial "events/initcall/initcall_start/trigger" "hist:keys=func:vals=hitcount:ts0=common_timestamp.usecs" compare_file_partial "events/initcall/initcall_start/enable" "1" -compare_file_partial "events/initcall/initcall_finish/trigger" 'hist:keys=func:vals=hitcount:lat=common_timestamp.usecs-\$ts0:sort=hitcount:size=2048:clock=global:onmatch(initcall.initcall_start).initcall_latency(func,\$lat)' +compare_file_partial "events/initcall/initcall_finish/trigger" 'hist:keys=func:vals=hitcount:lat=common_timestamp.usecs-\$ts0:sort=hitcount:size=2048:clock=global:onmatch(initcall.initcall_start).trace(initcall_latency,func,\$lat)' compare_file_partial "events/initcall/initcall_finish/enable" "1" compare_file "instances/foo/current_tracer" "function" -- 2.30.2
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