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lscpu: show dispatching mode 

A virtual guest my run in either "horiziontal" or "vertical" mode
which is the mode in which the underlying hypervisor schedules the
guest cpu.
Since this is of interest print this in the readable output.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens 2011-08-10 10:34:32 +02:00
parent 8648ca961f
commit a0fff77e93
1 changed files with 20 additions and 0 deletions
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20
sys-utils/lscpu.c
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@ -97,6 +97,17 @@ struct cpu_cache {
cpu_set_t **sharedmaps;
};
/* dispatching modes */
enum {
DISP_HORIZONTAL = 0,
DISP_VERTICAL = 1
};
const char *disp_modes[] = {
[DISP_HORIZONTAL] = N_("horizontal"),
[DISP_VERTICAL] = N_("vertical")
};
/* global description */
struct lscpu_desc {
char *arch;
@ -110,6 +121,7 @@ struct lscpu_desc {
char *stepping;
char *bogomips;
char *flags;
int dispatching; /* none, horizontal or vertical */
int mode; /* rm, lm or/and tm */
int ncpus; /* number of CPUs */
@ -478,6 +490,12 @@ read_basicinfo(struct lscpu_desc *desc)
desc->online = path_cpulist(_PATH_SYS_SYSTEM "/cpu/online");
desc->nthreads = CPU_COUNT_S(setsize, desc->online);
}
/* get dispatching mode */
if (path_exist(_PATH_SYS_SYSTEM "/cpu/dispatching"))
desc->dispatching = path_getnum(_PATH_SYS_SYSTEM "/cpu/dispatching");
else
desc->dispatching = -1;
}
static int
@ -1065,6 +1083,8 @@ print_readable(struct lscpu_desc *desc, int hex)
print_s(_("Hypervisor vendor:"), hv_vendors[desc->hyper]);
print_s(_("Virtualization type:"), virt_types[desc->virtype]);
}
if (desc->dispatching >= 0)
print_s(_("Dispatching mode:"), disp_modes[desc->dispatching]);
if (desc->ncaches) {
char buf[512];
int i;