Messages in this thread | | | Date | Thu, 11 Jun 2020 10:38:58 +0200 | From | Jiri Olsa <> | Subject | Re: [PATCH v2 2/2] perf expr: Add < and > operators |
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On Wed, Jun 10, 2020 at 04:58:23PM -0700, Ian Rogers wrote: > These are broadly useful but required to handle TMA metrics. For > example encoding Ports_Utilization from: > https://download.01.org/perfmon/TMA_Metrics.csv > requires '<'. > > { > "BriefDescription": "This metric estimates fraction of cycles the CPU performance was potentially limited due to Core computation issues (non divider-related). Two distinct categories can be attributed into this metric: (1) heavy data-dependency among contiguous instructions would manifest in this metric - such cases are often referred to as low Instruction Level Parallelism (ILP). (2) Contention on some hardware execution unit other than Divider. For example; when there are too many multiply operations.", > "MetricExpr": "( ( cpu@EXE_ACTIVITY.EXE_BOUND_0_PORTS@ + cpu@EXE_ACTIVITY.1_PORTS_UTIL@ + ( cpu@EXE_ACTIVITY.2_PORTS_UTIL@ * ( ( ( cpu@UOPS_RETIRED.RETIRE_SLOTS@ ) / ( cpu@CPU_CLK_UNHALTED.THREAD@ ) ) / ( ( 4.000000 ) + 1.000000 ) ) ) ) / ( cpu@CPU_CLK_UNHALTED.THREAD@ ) if ( cpu@ARITH.DIVIDER_ACTIVE\\,cmask\\=1@ < cpu@EXE_ACTIVITY.EXE_BOUND_0_PORTS@ ) else ( ( cpu@EXE_ACTIVITY.EXE_BOUND_0_PORTS@ + cpu@EXE_ACTIVITY.1_PORTS_UTIL@ + ( cpu@EXE_ACTIVITY.2_PORTS_UTIL@ * ( ( ( cpu@UOPS_RETIRED.RETIRE_SLOTS@ ) / ( cpu@CPU_CLK_UNHALTED.THREAD@ ) ) / ( ( 4.000000 ) + 1.000000 ) ) ) ) - cpu@EXE_ACTIVITY.EXE_BOUND_0_PORTS@ ) / ( cpu@CPU_CLK_UNHALTED.THREAD@ ) )", > "MetricGroup": "Topdown_Group_Ports_Utilization", > "MetricName": "Topdown_Metric_Ports_Utilization" > }, > > Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
thanks, jirka
> --- > tools/perf/tests/expr.c | 6 ++++++ > tools/perf/util/expr.l | 2 ++ > tools/perf/util/expr.y | 5 ++++- > 3 files changed, 12 insertions(+), 1 deletion(-) > > diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c > index c4877b36ab58..b7e5ef3007fc 100644 > --- a/tools/perf/tests/expr.c > +++ b/tools/perf/tests/expr.c > @@ -41,6 +41,12 @@ int test__expr(struct test *t __maybe_unused, int subtest __maybe_unused) > ret |= test(&ctx, ".1 + 2.", 2.1); > ret |= test(&ctx, "d_ratio(1, 2)", 0.5); > ret |= test(&ctx, "d_ratio(2.5, 0)", 0); > + ret |= test(&ctx, "1.1 < 2.2", 1); > + ret |= test(&ctx, "2.2 > 1.1", 1); > + ret |= test(&ctx, "1.1 < 1.1", 0); > + ret |= test(&ctx, "2.2 > 2.2", 0); > + ret |= test(&ctx, "2.2 < 1.1", 0); > + ret |= test(&ctx, "1.1 > 2.2", 0); > > if (ret) > return ret; > diff --git a/tools/perf/util/expr.l b/tools/perf/util/expr.l > index 298d86660a96..13e5e3c75f56 100644 > --- a/tools/perf/util/expr.l > +++ b/tools/perf/util/expr.l > @@ -111,6 +111,8 @@ else { return ELSE; } > "|" { return '|'; } > "^" { return '^'; } > "&" { return '&'; } > +"<" { return '<'; } > +">" { return '>'; } > "-" { return '-'; } > "+" { return '+'; } > "*" { return '*'; } > diff --git a/tools/perf/util/expr.y b/tools/perf/util/expr.y > index fe145344bb39..5fcb98800f9c 100644 > --- a/tools/perf/util/expr.y > +++ b/tools/perf/util/expr.y > @@ -41,6 +41,7 @@ static double d_ratio(double val0, double val1) > %left '|' > %left '^' > %left '&' > +%left '<' '>' > %left '-' '+' > %left '*' '/' '%' > %left NEG NOT > @@ -73,7 +74,7 @@ other: ID > | > MIN | MAX | IF | ELSE | SMT_ON | NUMBER | '|' | '^' | '&' | '-' | '+' | '*' | '/' | '%' | '(' | ')' | ',' > | > -D_RATIO > +'<' | '>' | D_RATIO > > all_expr: if_expr { *final_val = $1; } > ; > @@ -94,6 +95,8 @@ expr: NUMBER > | expr '|' expr { $$ = (long)$1 | (long)$3; } > | expr '&' expr { $$ = (long)$1 & (long)$3; } > | expr '^' expr { $$ = (long)$1 ^ (long)$3; } > + | expr '<' expr { $$ = $1 < $3; } > + | expr '>' expr { $$ = $1 > $3; } > | expr '+' expr { $$ = $1 + $3; } > | expr '-' expr { $$ = $1 - $3; } > | expr '*' expr { $$ = $1 * $3; } > -- > 2.27.0.278.ge193c7cf3a9-goog >
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