[Lazarus] Threads and Libraries (dll and so)
Marco van de Voort
marcov at stack.nl
Thu Feb 6 10:57:42 CET 2014
On Wed, Feb 05, 2014 at 01:44:59PM +0000, Mark Morgan Lloyd wrote:
>
> Particularly on systems with some sort of "interconnect" between
> processor units, it's entirely possible to find the threads associated
> with a single program spread over a comparatively large physical volume,
> with each thread able to talk efficiently to "nearby" peripherals.
On an 7 year old athlon X2 I can stream 5 Gigabit cameras at about 50MB/s
each. CPU will show 0% utilization.
The offloading of the intel pro cards delivers it directly into memory,
without measurable contention.
Of current systems (stock desktops, nothing NUMA) memory <-> cpu bandwidths
are measured in tens of GByte/s. Even for that Athlon X2 it was in the
single GByte/s.
The question is more how you are going to display that stuff swiftly. GDI?
Forget it. OpenGL gives up at about 40-60 MByte/s on a discrete model, and
half on integrated video. (HD4000)
One can try to create a GUI for this already remote scenario (independent
processes display to independent sections of the screen), but if the
systems below can't handle it, what's the point?
More information about the Lazarus
mailing list