diff options
| -rw-r--r-- | sys-utils/lscpu.1 | 2 | ||||
| -rw-r--r-- | sys-utils/lscpu.c | 53 |
2 files changed, 52 insertions, 3 deletions
diff --git a/sys-utils/lscpu.1 b/sys-utils/lscpu.1 index 4795e91c8..f9b8fa443 100644 --- a/sys-utils/lscpu.1 +++ b/sys-utils/lscpu.1 @@ -32,7 +32,7 @@ separate CPU cache columns. If no CPU caches are identified, then the cache columns are not printed at all. The \fIlist\fP argument is comma delimited list of the columns. Currently -supported are CPU, Core, Node, Socket, Book and Cache columns. If the +supported are CPU, Core, Node, Socket, Book, Cache and Polarization columns. If the \fIlist\fP argument is given then always all requested columns are printed in the defined order. The Cache columns are separated by ':'. diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c index aba7ab8bf..65ff96ce1 100644 --- a/sys-utils/lscpu.c +++ b/sys-utils/lscpu.c @@ -108,6 +108,23 @@ const char *disp_modes[] = { [DISP_VERTICAL] = N_("vertical") }; +/* cpu polarization */ +enum { + POLAR_UNKNOWN = 0, + POLAR_VLOW, + POLAR_VMEDIUM, + POLAR_VHIGH, + POLAR_HORIZONTAL +}; + +const char *polar_modes[] = { + [POLAR_UNKNOWN] = "U", + [POLAR_VLOW] = "VL", + [POLAR_VMEDIUM] = "VM", + [POLAR_VHIGH] = "VH", + [POLAR_HORIZONTAL] = "H" +}; + /* global description */ struct lscpu_desc { char *arch; @@ -149,6 +166,8 @@ struct lscpu_desc { int ncaches; struct cpu_cache *caches; + + int *polarization; /* cpu polarization */ }; static size_t sysrootlen; @@ -179,7 +198,8 @@ enum { COL_SOCKET, COL_NODE, COL_BOOK, - COL_CACHE + COL_CACHE, + COL_POLARIZATION }; static const char *colnames[] = @@ -189,7 +209,8 @@ static const char *colnames[] = [COL_SOCKET] = "Socket", [COL_NODE] = "Node", [COL_BOOK] = "Book", - [COL_CACHE] = "Cache" + [COL_CACHE] = "Cache", + [COL_POLARIZATION] = "Polarization" }; @@ -717,6 +738,29 @@ read_topology(struct lscpu_desc *desc, int num) if (book_siblings) add_cpuset_to_array(desc->bookmaps, &desc->nbooks, book_siblings); } +static void +read_polarization(struct lscpu_desc *desc, int num) +{ + char mode[64]; + + if (desc->dispatching < 0) + return; + if (!path_exist(_PATH_SYS_CPU "/cpu%d/polarization", num)) + return; + if (!desc->polarization) + desc->polarization = xcalloc(desc->ncpus, sizeof(int)); + path_getstr(mode, sizeof(mode), _PATH_SYS_CPU "/cpu%d/polarization", num); + if (strncmp(mode, "vertical:low", sizeof(mode)) == 0) + desc->polarization[num] = POLAR_VLOW; + else if (strncmp(mode, "vertical:medium", sizeof(mode)) == 0) + desc->polarization[num] = POLAR_VMEDIUM; + else if (strncmp(mode, "vertical:high", sizeof(mode)) == 0) + desc->polarization[num] = POLAR_VHIGH; + else if (strncmp(mode, "horizontal", sizeof(mode)) == 0) + desc->polarization[num] = POLAR_HORIZONTAL; + else + desc->polarization[num] = POLAR_UNKNOWN; +} static int cachecmp(const void *a, const void *b) @@ -868,6 +912,10 @@ print_parsable_cell(struct lscpu_desc *desc, int i, int col, int compatible) putchar(','); } break; + case COL_POLARIZATION: + if (desc->polarization) + printf("%s", polar_modes[desc->polarization[i]]); + break; } } @@ -1181,6 +1229,7 @@ int main(int argc, char *argv[]) continue; read_topology(desc, i); read_cache(desc, i); + read_polarization(desc, i); } qsort(desc->caches, desc->ncaches, sizeof(struct cpu_cache), cachecmp); |