At 8:57 AM -0700 7/14/2012, Al Poulin wrote:
> wrt YouTube make sure you're not trying to view the higher definition
versions of the videos. At 1 Mb, one should expect those to be
glitchy.
Thanks, I'm passing this on to her. So the 1 MB RAM is rather minimum
for some downstreaming.
Do not confuse 1 Mb -- 1 megabit per second -- DSL speed, with the 1
GB RAM in her iMac.
1 GB RAM is *certainly* enough to play video. Few apps require more
than 40 to 80 MB RAM to play a video, including buffers. Safari
bumps its memory usage by only about 30 MB when playing a video on
YouTube. The issue of 1 GB RAM being a minimum is wrt to the system
as a whole - all the processes Leopard runs, plus Dashboard,
Spotlight, and the user apps that all tend to be piggy - it adds up.
But again, a GIGABYTE of memory is a LOT -- that amount of memory
DOES NOT restrict video playing IN ANY WAY.
The slow DSL speed can be quite restrictive, however. For example,
when I play a YouTube video in Safari, it spikes to up around 3 Mbps
as the buffers initially load (I have 15 Mbps service), then levels
out to around 700 Mbps for a while, then spikes back to 1.5 to 2 Mbps
as it rebuffers.
If you view the network throughput using Activity Monitor, or even
iStat Menus, while playing such videos, she should get a better idea
if that's the bottleneck.
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.
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