sysinfo

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NAME

       sysinfo - returns information on overall system statistics


SYNOPSIS

       As  of  Linux  0.99.10  and  image  release  4.4  #include
       <linux/kernel.h>
       #include <linux/sys.h>

       int sysinfo(struct sysinfo *info);


DESCRIPTION

       sysinfo returns information in the following structure:

              struct sysinfo {
                   long uptime;              /* Seconds since boot */
                   unsigned long loads[3];   /* 1, 5, and 15 minute load averages */
                   unsigned long totalram;   /* Total usable main memory size */
                   unsigned long freeram;    /* Available memory size */
                   unsigned long sharedram;  /* Amount of shared memory */
                   unsigned long bufferram;  /* Memory used by buffers */
                   unsigned long totalswap;  /* Total swap space size */
                   unsigned long freeswap;   /* swap space still available */
                   unsigned short procs;     /* Number of current processes */
                   char _f[22];              /* Pads structure to 64 bytes */
              };

       sysinfo  provides  a  simple way of getting overall system
       statistics.  This is more portable than reading /dev/kmem.


RETURN VALUE

       On  success,  zero is returned.  On error, -1 is returned,
       and errno is set appropriately.


ERRORS

       EFAULT  pointer to struct sysinfo is invalid


CONFORMING TO

       This function is Linux-specific.


BUGS

       The Linux DLL 4.4.1 libraries do not contain a proper pro-
       totype for this function.
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