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Commit 2b1b7100 authored by Don Zickus's avatar Don Zickus Committed by Jiri Olsa
Browse files

perf tools: Add support to dynamically get cacheline size 



Different arches may have different cacheline sizes.  Look it up and set
a global variable for reference.

Signed-off-by: default avatarDon Zickus <dzickus@redhat.com>
Link: http://lkml.kernel.org/r/1401480605-97442-1-git-send-email-dzickus@redhat.com


Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
parent 7365be55

tools/perf/perf.c

+1 −0
Original line number Diff line number Diff line
@@ -458,6 +458,7 @@ int main(int argc, const char **argv) 


	/* The page_size is placed in util object. */

	page_size = sysconf(_SC_PAGE_SIZE);

	cacheline_size = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);



	cmd = perf_extract_argv0_path(argv[0]);

	if (!cmd)

tools/perf/util/util.c

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
 * XXX We need to find a better place for these things...

 */

unsigned int page_size;

int cacheline_size;



bool test_attr__enabled;

tools/perf/util/util.h

+1 −0
Original line number Diff line number Diff line
@@ -304,6 +304,7 @@ char *rtrim(char *s); 
void dump_stack(void);



extern unsigned int page_size;

extern int cacheline_size;



void get_term_dimensions(struct winsize *ws);