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| author |   Jiri Olsa <jolsa@kernel.org> | 2020-02-28 10:36:14 +0100 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2020-03-09 21:43:24 -0300 |
| commit | 58ca707636dc44c8803a098fb68129f64272f151 (patch) | |
| tree | fa5f02342f39b0d2c71318ef6c55ed4f688af345 /tools/perf/util/expr.h | |
| parent | perf expr: Move expr lexer to flex (diff) | |
| download | linux-dev-58ca707636dc44c8803a098fb68129f64272f151.tar.xz linux-dev-58ca707636dc44c8803a098fb68129f64272f151.zip | |
perf expr: Increase EXPR_MAX_OTHER to support metrics with more than 15 variables
We have metrics that define more than 15 variables, like
Branch_Misprediction_Cost. Increasing the allowed variables count to 20.
As Andy pointed out, we can't go too high in here, because some of the
code has O(n^2) complexity (already_seen) and we might want to do some
other changes (like using hash tables) before increasing the maximum
even more.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Link: http://lore.kernel.org/lkml/20200228093616.67125-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/expr.h')
| -rw-r--r-- | tools/perf/util/expr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h index 9332796e6649..df0a17df0cef 100644 --- a/tools/perf/util/expr.h +++ b/tools/perf/util/expr.h @@ -2,7 +2,7 @@ #ifndef PARSE_CTX_H #define PARSE_CTX_H 1 -#define EXPR_MAX_OTHER 15 +#define EXPR_MAX_OTHER 20 #define MAX_PARSE_ID EXPR_MAX_OTHER struct parse_id { |