int sigar_mem_get(sigar_t *sigar, sigar_mem_t *mem)
{
kstat_ctl_t *kc = sigar->kc;
kstat_t *ksp;
sigar_uint64_t kern = 0;
SIGAR_ZERO(mem);
/* XXX: is mem hot swappable or can we just do this during open ? */
mem->total = sysconf(_SC_PHYS_PAGES);
mem->total <<= sigar->pagesize;
if (sigar_kstat_update(sigar) == -1) {
return errno;
}
if ((ksp = sigar->ks.syspages) && kstat_read(kc, ksp, NULL) >= 0) {
sigar_koffsets_init_syspages(sigar, ksp);
mem->free = kSYSPAGES(KSTAT_SYSPAGES_FREE);
mem->free <<= sigar->pagesize;
mem->used = mem->total - mem->free;
}
if ((ksp = sigar->ks.mempages) && kstat_read(kc, ksp, NULL) >= 0) {
sigar_koffsets_init_mempages(sigar, ksp);
}
/* XXX mdb ::memstat cachelist/freelist not available to kstat, see: */
/* http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6821980 */
/* ZFS ARC cache. see: http://opensolaris.org/jive/thread.jspa?messageID=393695 */
if ((ksp = kstat_lookup(sigar->kc, "zfs", 0, "arcstats")) &&
(kstat_read(sigar->kc, ksp, NULL) != -1))
{
kstat_named_t *kn;
if ((kn = (kstat_named_t *)kstat_data_lookup(ksp, "size"))) {
kern = kn->value.i64;
}
if ((kn = (kstat_named_t *)kstat_data_lookup(ksp, "c_min"))) {
/* c_min cannot be reclaimed they say */
if (kern > kn->value.i64) {
kern -= kn->value.i64;
}
}
}
mem->actual_free = mem->free + kern;
mem->actual_used = mem->used - kern;
sigar_mem_calc_ram(sigar, mem);
return SIGAR_OK;
}
int sigar_mem_get(sigar_t *sigar, sigar_mem_t *mem)
{
struct pst_dynamic stats;
sigar_uint64_t pagesize = sigar->pstatic.page_size;
mem->total = sigar->pstatic.physical_memory * pagesize;
pstat_getdynamic(&stats, sizeof(stats), 1, 0);
mem->free = stats.psd_free * pagesize;
mem->used = mem->total - mem->free;
mem->actual_free = mem->free;
mem->actual_used = mem->used;
sigar_mem_calc_ram(sigar, mem);
return SIGAR_OK;
}
