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| author | Ian Rogers <irogers@google.com> | 2020-06-11 02:58:23 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-06-22 22:28:09 +0300 |
| commit | ff1a12f962dff5b490c5ce1c2c4bcd0bf3bf517d (patch) | |
| tree | e1906b716a25cac91c6d6ffbe6eead610ba5ff12 /tools/perf/util/expr.y | |
| parent | 3e21a28a01e227726456a51933ed004c2df31850 (diff) | |
| download | linux-ff1a12f962dff5b490c5ce1c2c4bcd0bf3bf517d.tar.xz | |
perf expr: Add < and > operators
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>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20200610235823.52557-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/expr.y')
| -rw-r--r-- | tools/perf/util/expr.y | 5 |
1 files changed, 4 insertions, 1 deletions
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; } |