Date: Thu, 02 Jul 1998 14:37:21 +0000 From: Donn Miller <dmm125@bellatlantic.net> To: Mike Smith <mike@smith.net.au> Cc: questions@FreeBSD.ORG, hackers@FreeBSD.ORG Subject: Re: FreeBSD equiv. of /proc/loadavg Message-ID: <359B9B21.6DE01652@bellatlantic.net> References: <199807021826.LAA01241@antipodes.cdrom.com>
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Mike Smith wrote:
>
> >
> > Am looking for the FreeBSD equivalent of the Linux file /proc/loadavg. I
> > want to use this instead of using getloadavg().
>
> The obvious question here is "why"?
I just figured that some Linux programs were trying to obtain load
average info that way, and to ease porting, well, I wanted to open the
equivalent FreeBSD file. I realize now though that if you want to port
some apps with low-level details, you gotta do a little reworking.
I was trying to port wmmon from WindowMaker. It's just for Linux now.
In addition, the app tries to obtain loadaverage, uptime, and memory
info about the machine like this: (from wmmon.c)
FILE *fp_meminfo;
FILE *fp_stat;
FILE *fp_loadavg;
/*.....*/
fp = fopen("/proc/uptime", "r");
fp_meminfo = fopen("/proc/meminfo", "r");
fp_loadavg = fopen("/proc/loadavg", "r");
fp_stat = fopen("/proc/stat", "r");
>
> > I'm also looking for the equivalent of these. This is what I think they
> > are:
> >
> > Linux FreeBSD
> > ===== =======
> > /proc/meminfo /proc/curproc/mem
> > /proc/stat /proc/curproc/status
>
> No. /proc/meminfo is memory information about the machine, while /proc/
> curproc/mem is the current process' address space. /proc/stat is
> random junk, while /proc/curproc/stat is the status of the current
> process.
>
> > /proc/loadavg ??? (probably /kernel)
>
> sysctlbyname("vm.loadavg", ...)
>
> > /proc/uptime ??? (probably /kernel)
>
> The difference between gettimeofday() and sysctlbyname("kern.boottime", ...)
>
--Donn
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