_SC_LEVEL1_DCACHE_LINESIZE    5 tools/perf/util/cacheline.c #ifdef _SC_LEVEL1_DCACHE_LINESIZE
_SC_LEVEL1_DCACHE_LINESIZE    6 tools/perf/util/cacheline.c #define cache_line_size(cacheline_sizep) *cacheline_sizep = sysconf(_SC_LEVEL1_DCACHE_LINESIZE)