Re: [dwm] dwm with dzen status bar

"Sander van Dijk" <a.h.vandijk_AT_gmail.com> writes:

> I wouldn't be surprised if using bc the smart way is actually faster,
> but the machine I'm testing on is too fast to measure the difference
> between the various approaches; could you test how fast this is?
>
> bc << !
> for(i = 1000; i > 0; i--)
> n = n + i
> print n
> !

,----
| $ time bc << !
| > for(i = 1000; i > 0; i--)
| > n = n + i
| > print n
| > !
| 500500
| real 0m0.003s
| user 0m0.000s
| sys 0m0.000s
`----

So this is the fastest way for doing that kind of calculation. However,
this doesn't append to the »real life« example of Hugo's netmon.sh,
where he does simple calculations like

$(echo "($RXBN - $RXB) / 1024/${SLEEP}" | bc)

Even if bc's calculations are much faster than those of the shell, the
cost of the fork is much too high.

Best regards,
 olli

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