diff options
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/expr.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tools/perf/util/expr.c b/tools/perf/util/expr.c index 7464739c2890..15af8b8ef5e7 100644 --- a/tools/perf/util/expr.c +++ b/tools/perf/util/expr.c @@ -5,6 +5,8 @@ #include <stdlib.h> #include <string.h> #include "metricgroup.h" +#include "cpumap.h" +#include "cputopo.h" #include "debug.h" #include "expr.h" #include "expr-bison.h" @@ -375,9 +377,34 @@ double expr_id_data__value(const struct expr_id_data *data) double expr__get_literal(const char *literal) { + static struct cpu_topology *topology; + if (!strcmp("#smt_on", literal)) return smt_on() > 0 ? 1.0 : 0.0; + if (!strcmp("#num_cpus", literal)) + return cpu__max_present_cpu(); + + /* + * Assume that topology strings are consistent, such as CPUs "0-1" + * wouldn't be listed as "0,1", and so after deduplication the number of + * these strings gives an indication of the number of packages, dies, + * etc. + */ + if (!topology) { + topology = cpu_topology__new(); + if (!topology) { + pr_err("Error creating CPU topology"); + return NAN; + } + } + if (!strcmp("#num_packages", literal)) + return topology->package_cpus_lists; + if (!strcmp("#num_dies", literal)) + return topology->die_cpus_lists; + if (!strcmp("#num_cores", literal)) + return topology->core_cpus_lists; + pr_err("Unrecognized literal '%s'", literal); return NAN; } |