| Date: Mon, 8 Aug 2005 01:42:38 +0100 (IST)
| From: Paul Jakma <paul at clubi.ie>
| On Mon, 8 Aug 2005, Brian Foster wrote:
| > | Date: Mon, 8 Aug 2005 01:04:01 +0100 (IST)
| > | From: Paul Jakma <paul at clubi.ie>
| > | And it not making inroads into embedded RTOS market.
| > NO. and about Linux not making inroads into the small-memory
| > and/or hard-realtime embedded market. those are important
| I missed small-memory, but I think I covered the RTOS bit.
NO. you missed the >>>> HARD-REALTIME <<<< bit.
“RTO/S” perhaps should, but does not, imply hard-
realtime. the soft-realtime of POSIX (which Linux
does have) is sufficient for people to call Linux
an RTO/S. and it can be, and is, embedded. what
it does not have is deterministic behaviour of a
| Is small memory that important anymore even?
one project the company I currently work for is
involved in at the current time is a HDTV with
8KiB RAM and 2MiB of FLASH. 'nuff said.
RAM prices are volatile. for CE (customer
electronics) devices, this matters: CE is
notoriously price-sensitive (with smaller
margins than you might think, except, perhaps,
at the high-end / early-adaptor). a "large"
exposure to volatile (unpredictable) RAM
prices is therefore an issue. however, what
I have no idea about is the actual extent to
which this price volatility determines/limits
the amount of RAM in a CE device.
the price-sensitivity is (probably?) one reason
Linux is seeing design wins in CE.
| Does it even matter what OS exactly it is as long as it's Free and
| suitable for the task?
no, it does not matter.
but the question was about Linux.
Experienced (20+ yrs) kernel/software Eng: | Brian Foster Montpellier,
• Unix, embedded, &tc; • Linux; • doc; | blf at utvinternet.ie FRANCE
• IDL, automated testing, process, &tc. | Stop E$$o (ExxonMobile)!
Résumé (CV) http://www.blf.utvinternet.ie | http://www.stopesso.com
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