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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 21:03:05 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-05-17 22:03:34 +0300 |
| commit | 9ac94e31ca8c6311ec9eb68aea513e39ad809013 (patch) | |
| tree | 352e30a3305522b1744c6c333ae497e119b9fac8 /tools/perf/util/sort.h | |
| parent | 6e1690c4c0b540930f08295b6a95c8660b257745 (diff) | |
| download | linux-9ac94e31ca8c6311ec9eb68aea513e39ad809013.tar.xz | |
perf tools: Read the cache line size lazily
It is not read as commonly as 'page_size', so it makes sense to read it
lazily, caching its value when it is first read.
Less files open unconditionally at startup.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-35xhrq91u94uc1djtclek1ie@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/sort.h')
| -rw-r--r-- | tools/perf/util/sort.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h index 035b62e2c60b..9e6896293bbd 100644 --- a/tools/perf/util/sort.h +++ b/tools/perf/util/sort.h @@ -186,13 +186,13 @@ static inline float hist_entry__get_percent_limit(struct hist_entry *he) static inline u64 cl_address(u64 address) { /* return the cacheline of the address */ - return (address & ~(cacheline_size - 1)); + return (address & ~(cacheline_size() - 1)); } static inline u64 cl_offset(u64 address) { /* return the cacheline of the address */ - return (address & (cacheline_size - 1)); + return (address & (cacheline_size() - 1)); } enum sort_mode { |