Source
/*
** Zabbix
** Copyright (C) 2001-2025 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
static int VM_MEMORY_TOTAL(AGENT_RESULT *result)
{
return EXECUTE_INT("vmstat -s | awk 'BEGIN{pages=0}{gsub(\"[()]\",\"\");if($4==\"pagesize\")pgsize=($6);if(($2==\"inactive\"||$2==\"active\"||$2==\"wired\")&&$3==\"pages\")pages+=$1}END{printf (pages*pgsize)}'", result);
}
static int VM_MEMORY_FREE(AGENT_RESULT *result)
{
return EXECUTE_INT("vmstat -s | awk '{gsub(\"[()]\",\"\");if($4==\"pagesize\")pgsize=($6);if($2==\"free\"&&$3==\"pages\")pages=($1)}END{printf (pages*pgsize)}'", result);
}
static int VM_MEMORY_USED(AGENT_RESULT *result)
{
int ret = SYSINFO_RET_FAIL;
AGENT_RESULT result_tmp;
zbx_uint64_t free, total;
init_result(&result_tmp);
if (SYSINFO_RET_OK != VM_MEMORY_FREE(&result_tmp))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, result_tmp.msg));
goto clean;
}
free = result_tmp.ui64;
if (SYSINFO_RET_OK != VM_MEMORY_TOTAL(&result_tmp))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, result_tmp.msg));
goto clean;
}
total = result_tmp.ui64;
SET_UI64_RESULT(result, total - free);
ret = SYSINFO_RET_OK;
clean:
free_result(&result_tmp);