Help with vmstat

Russ Brandon msitd32 at ms3.UUCP
Tue Apr 22 00:28:10 AEST 1986


	I'm looking for some advice, help, hints, and maybe a point
	of contact for getting 'vmstat' to execute in the back round.

	I've been trying for some time now to get vmstat to execute
	from a back round process(i.e. at and crontab) with no success.
	I have looked at the source for vmstat and can see no reason
	for it not working from the back round. The program executes
	fine from the foreground but when executed from the back round I
	can't get any output. I've put DEBUG code in to monitor the 
	actions of the program, but I don't get any output from these 
	either. I commented out the following code,

		setbuf(stdout, _sobuf);
		where _sobuf was defined as
		extern char _sobuf[];
	thinking that the program was failing from the back round because
	there was no stdout associated with the process. This had no 
	effect on the execution of the program.

	I need to execute vmstat once an hour for an indefinite period
	to calculate capacity assessments for the system. We are using
	VAX 11/780s running 4.1BSD. 

	If you have any suggestions or know of someone who might I'd 
	appreciate some help.




-- 
Russell Brandon		...!seismo!vrdxhq!ms3!RSB
c/o ISN, Crop
1235 Jefferson Davis Hwy
Arlington, Va. 22202



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