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Re: bug in systime(1) on IDL 5.2 Linux/Intel? [message #14470 is a reply to message #14404]

Tue, 02 March 1999 00:00

Kevin P. Reardon
Messages: 2
Registered: January 1999

Junior Member

"Woodford, Paul" wrote:
>
> systime(1) on IDL 5.2 Linux/Intel seems to always yield whole
> numbers.

I just ran into this problem while installing a IDL 5.2 on a new Linux
machine. Desperate to benchmark the beast, I coded up a quick workaround
using the information contained in /proc/uptime (which contains the
uptime in hundredths of a second). A simple program to read and format
this information in the same way as systime is given below. Then in
$IDL_DIR/lib/time_test.pro (or rather, a copy thereof), I substituted
all occurences of "systime" with "uptime". Millisecond accuracy it
ain't, but for running time_test[123], it seems sufficient (the fastest
of the individual tests on my machine takes 0.07 seconds). Of course, a
real fix for systime would be better.

Of course, this only works if you have the /proc filesystem enabled and
you machine doesn't reboot during the time_test.

I hope it helps,
kevin reardon
Osservatorio Astronomico di Capodimonte

; a program to read the /proc/uptime "file" in a systime(1)-like
; format

function uptime,return_type

; select the first of the two fields in the file
spawn, 'cat /proc/uptime | cut -f 1 -d " "' , uptime

uptime=double(uptime[0])

return,uptime

end

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[Message index]

		bug in systime(1) on IDL 5.2 Linux/Intel? By: woodford on Tue, 23 February 1999 00:00
		Re: bug in systime(1) on IDL 5.2 Linux/Intel? By: Kevin P. Reardon on Tue, 02 March 1999 00:00
		Re: bug in systime(1) on IDL 5.2 Linux/Intel? By: J.D. Smith on Mon, 01 March 1999 00:00
		Re: bug in systime(1) on IDL 5.2 Linux/Intel? By: Ivan Zimine on Mon, 01 March 1999 00:00

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