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RE: ecos == slow ??
- From: Geoff Patch <grp at cea dot com dot au>
- To: "'ecos-discuss at sources dot redhat dot com'" <ecos-discuss at sources dot redhat dot com>
- Date: Wed, 27 Mar 2002 13:19:29 +1100
- Subject: RE: [ECOS] ecos == slow ??
Hi,
> Is eCos slow or our are we missing something here? Were porting a Java
> Virtual Machine to eCos, but it's much slower than running it on
> embedded linux in it's original code. The VM starts in about 5 seconds
> on Linux where the ecos port only starts after about 5 minutes (no joke,
> we timed it).
It's only an opinion, but I'd say that you're probably missing something.
Our experience with eCos has been that (with our applications) it provides
comparable performance to a well known commercial RTOS. I'm assuming that
you ran the VM on the Compaq under embedded Linux, and then under eCos to
get the timing comparison.
I'd recommend that you use whatever diagnostic features you have available
to gather some timing information on the sequence of events that occur as
your program starts up.
Cheers
Geoff
------------------------------
Geoff Patch
Senior Software Engineer
CEA Technologies
Canberra Australia
02-6213 0141
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