[asterisk-dev] Kernel modules => mainline kernel

Oron Peled oron at actcom.co.il
Wed Feb 21 13:31:52 MST 2007


On Wednesday, 21 בFebruary 2007 21:47, Paul Cadach wrote:
> Kevin P. Fleming wrote:
> [skipped]
> > F) broken math - This example (for 4 quad T1/E1 cards in E1 mode) was
> > offered:
> >
> > So 4 Quad-PRI cards with this driver will generate 4000 interrupts/sec.
> >   Let's compare the data volume:
> >     8bytes * 30channels * 4ports * 2[R/W] * 1000/sec <= 2Kb/sec of PCM.
> 
> To be clear, for one quad PRI card data transfer rate will be
> 8 bytes * 31 (!) channels * 4 ports * 2[R/W] * 1000/sec = 1924000 bytes per 
> second (or 1924 bytes per interrupt)

The bad math is mine, not Kevin's (it's only ~2Mb instead of ~2Kb
who would notice ;-)

Thanks for the correction,

-- 
Oron Peled                             Voice/Fax: +972-4-8228492
oron at actcom.co.il                  http://www.actcom.co.il/~oron
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