.TH "KDK_RTI_GET_MEM_RES_USAGE_PERCENT" 3 "Mon Sep 18 2023" "Linux Programmer's Manual" \"
.SH NAME
kdk_rti_get_mem_res_usage_percent - 获取物理内存使用率
.SH SYNOPSIS
.nf
.B #include <libkyrtinfo.h>
.sp
.BI "extern float kdk_rti_get_mem_res_usage_percent();" 
.sp
Link with \fI\-lkyrtinfo\fP.
.SH "Detailed Description"
The main function of the interface is to obtain the physical memory usage rate.
.SH "RETURN VALUE"
On success, returns the physical memory usage rate of type float.
.PP
On error, return
.BR 0.00.
.SH EXAMPLES
.EX
#include "libkyrtinfo.h"
#include <stdio.h>

int main()
{
    printf("内存总大小：%lu KiB\n", kdk_rti_get_mem_res_total_KiB());
    printf("当前已用内存：%lu KiB，%f\n", kdk_rti_get_mem_res_usage_KiB(), kdk_rti_get_mem_res_usage_percent());
    printf("当前空闲内存：%lu KiB\n", kdk_rti_get_mem_res_free_KiB());
    printf("可用内存大小：%lu KiB\n", kdk_rti_get_mem_res_available_KiB());
    printf("应用总申请虚拟内存大小：%lu KiB\n", kdk_rti_get_mem_virt_alloc_KiB());
    printf("交换分区总量：%lu KiB\n", kdk_rti_get_mem_swap_total_KiB());
    printf("交换分区已用量：%lu KiB, %f\n", kdk_rti_get_mem_swap_usage_KiB(), kdk_rti_get_mem_swap_usage_percent());
    printf("交换分区剩余大小：%lu KiB\n", kdk_rti_get_mem_swap_free_KiB());
    printf("当前CPU使用率：%f\n", kdk_rti_get_cpu_current_usage());
    unsigned int day, hour, min, sec;
    kdk_rti_get_uptime(&day, &hour, &min, &sec);
    printf("开机时长：%u天%u小时%u分钟%u秒\n", day, hour, min, sec);
    return 0;
}

.SH "CONFORMING TO"
These functions are as per the withdrawn POSIX.1e draft specification.
The following functions are Linux extensions:
.BR kdk_rti_get_mem_res_total_KiB (),
.BR kdk_rti_get_mem_res_usage_KiB (),
.BR kdk_rti_get_mem_res_available_KiB (),
.BR kdk_rti_get_mem_res_free_KiB (),
.BR kdk_rti_get_mem_virt_alloc_KiB (),
.BR kdk_rti_get_mem_swap_total_KiB (),
.BR kdk_rti_get_mem_swap_usage_percent (),
.BR kdk_rti_get_mem_swap_usage_KiB (),
.BR kdk_rti_get_mem_swap_free_KiB (),
.BR kdk_rti_get_cpu_current_usage ()
and
.BR kdk_rti_get_uptime ().
.SH "SEE ALSO"
.BR kdk_rti_get_mem_res_total_KiB (3),
.BR kdk_rti_get_mem_res_usage_KiB (3),
.BR kdk_rti_get_mem_res_available_KiB (3),
.BR kdk_rti_get_mem_res_free_KiB (3),
.BR kdk_rti_get_mem_virt_alloc_KiB (3),
.BR kdk_rti_get_mem_swap_total_KiB (),
.BR kdk_rti_get_mem_swap_usage_percent (3),
.BR kdk_rti_get_mem_swap_usage_KiB (3),
.BR kdk_rti_get_mem_swap_free_KiB (3),
.BR kdk_rti_get_cpu_current_usage (3)
and
.BR kdk_rti_get_uptime (3).