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use perfstat for cpu_list if available

This commit is contained in:
Doug MacEachern 2004-07-19 19:44:01 +00:00
parent c90566454e
commit 87b502d76a
3 changed files with 89 additions and 8 deletions
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79
src/os/aix/aix_sigar.c
View File

@ -234,7 +234,6 @@ static char *sigar_get_self_path(sigar_t *sigar)
static int sigar_perfstat_init(sigar_t *sigar)
{
perfstat_cpu_func_t pcpu;
void *handle;
char libperfstat[SIGAR_PATH_MAX], *path;
int len;
@ -264,10 +263,11 @@ static int sigar_perfstat_init(sigar_t *sigar)
return errno;
}
pcpu = (perfstat_cpu_func_t)dlsym(handle,
sigar->perfstat.cpu_total =
(perfstat_cpu_total_func_t)dlsym(handle,
"sigar_perfstat_cpu_total");
if (!pcpu) {
if (!sigar->perfstat.cpu_total) {
if (SIGAR_LOG_IS_DEBUG(sigar)) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"dlsym(sigar_perfstat_cpu_total) failed: %s",
@ -280,9 +280,25 @@ static int sigar_perfstat_init(sigar_t *sigar)
return ENOENT;
}
sigar->perfstat.cpu =
(perfstat_cpu_func_t)dlsym(handle,
"sigar_perfstat_cpu");
if (!sigar->perfstat.cpu) {
if (SIGAR_LOG_IS_DEBUG(sigar)) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"dlsym(sigar_perfstat_cpu) failed: %s",
dlerror());
}
dlclose(handle);
sigar->perfstat.avail = -1;
return ENOENT;
}
sigar->perfstat.avail = 1;
sigar->perfstat.handle = handle;
sigar->perfstat.cpu_total = pcpu;
return SIGAR_OK;
}
@ -540,7 +556,7 @@ int sigar_cpu_get(sigar_t *sigar, sigar_cpu_t *cpu)
* };
*/
int sigar_cpu_list_get(sigar_t *sigar, sigar_cpu_list_t *cpulist)
static int sigar_cpu_list_get_kmem(sigar_t *sigar, sigar_cpu_list_t *cpulist)
{
int status, i, j;
int ncpu = _system_configuration.ncpus; /* this can change */
@ -582,6 +598,59 @@ int sigar_cpu_list_get(sigar_t *sigar, sigar_cpu_list_t *cpulist)
return SIGAR_OK;
}
static int sigar_cpu_list_get_pstat(sigar_t *sigar, sigar_cpu_list_t *cpulist)
{
perfstat_cpu_t data;
int i, ncpu = _system_configuration.ncpus; /* this can change */
perfstat_id_t id;
id.name[0] = '\0';
sigar_cpu_list_create(cpulist);
for (i=0; i<ncpu; i++) {
sigar_cpu_t *cpu;
SIGAR_CPU_LIST_GROW(cpulist);
cpu = &cpulist->data[cpulist->number++];
if (SIGAR_LOG_IS_DEBUG(sigar)) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"cpu%d perfstat_id='%s'",
i, id.name);
}
if (sigar->perfstat.cpu(&id, &data, sizeof(data), 1)) {
cpu->user = data.user;
cpu->nice = -1; /* N/A */
cpu->sys = data.sys;
cpu->idle = data.idle;
cpu->total = cpu->user + cpu->sys + cpu->idle + data.wait;
}
else {
sigar_log_printf(sigar, SIGAR_LOG_ERROR,
"cpu%d perfstat_cpu(%s) failed",
i, id.name);
SIGAR_ZERO(cpu);
}
}
return SIGAR_OK;
}
int sigar_cpu_list_get(sigar_t *sigar, sigar_cpu_list_t *cpulist)
{
if (sigar_perfstat_init(sigar) == SIGAR_OK) {
sigar_log(sigar, SIGAR_LOG_DEBUG, "[cpu_list] using libperfstat");
return sigar_cpu_list_get_pstat(sigar, cpulist);
}
else {
sigar_log(sigar, SIGAR_LOG_DEBUG, "[cpu_list] using /dev/kmem");
return sigar_cpu_list_get_kmem(sigar, cpulist);
}
}
static int boot_time_v4(int fd, time_t *time)
{
struct utmp data;

7
src/os/aix/perfstat/sigar_perfstat.c
View File

@ -7,3 +7,10 @@ int sigar_perfstat_cpu_total(perfstat_id_t *id,
return perfstat_cpu_total(id, cpu_total, size, num);
}
int sigar_perfstat_cpu(perfstat_id_t *id,
perfstat_cpu_t *cpu,
int size, int num)
{
return perfstat_cpu(id, cpu, size, num);
}

9
src/os/aix/sigar_os.h
View File

@ -27,10 +27,14 @@ typedef int (*vminfo_func_t) (void *, int, int);
typedef int (*proc_fd_func_t) (sigar_t *, sigar_pid_t, sigar_proc_fd_t *);
typedef int (*perfstat_cpu_func_t)(perfstat_id_t *,
typedef int (*perfstat_cpu_total_func_t)(perfstat_id_t *,
perfstat_cpu_total_t *,
int, int);
typedef int (*perfstat_cpu_func_t)(perfstat_id_t *,
perfstat_cpu_t *,
int, int);
struct sigar_t {
SIGAR_T_BASE;
int kmem;
@ -40,7 +44,8 @@ struct sigar_t {
proc_fd_func_t getprocfd;
struct {
int avail;
perfstat_cpu_func_t cpu_total;
perfstat_cpu_func_t cpu;
perfstat_cpu_total_func_t cpu_total;
void *handle;
} perfstat;
int pagesize;