Der Herr Hofrat wrote:
> >
> > The following question is :
> > Is this possible to guarantee realtime with IDE disks and rtlinux ? or
> > is it best preferred to use
> > only scsi disks ?
> >
> for test purposes I have driven IDE and SCSI disks up to a load average
> of about 12-15 with simultaious recursive copy/ls -lR/mv/fsck.ext2
OK, but did you try differents hdparms ?
what happens with a raw access (with dd where it is possible to set block
size ?)
>
> operations and there is no significant increase in scheduling jitter,
> the average will creap up a bit , but the maximum will not increase more
> then 5-10% . I must emphasize that this referes to IDE not UIDE I have not
> done this on UIDE yet. I allso have never noticed any influence of floppy
> access on scheduling jitter.
>
> hofrat
> *------------------------------------------------------------------------*
> *THERE {__} Universitaet Wien *
> *IS oo ) Inst. f. Materialphysik *
> *LIFE O_ `_-------. Mc Guire Nicholas *
> *IN (-. ,-\ *
> *THE || )---< ) [EMAIL PROTECTED] *
> *NET ! ||| | | privat: [EMAIL PROTECTED] *
> * [EMAIL PROTECTED] *
> *------------------------------------------------------------------------*
> *ASCII-COW (C) 1996-2001 [EMAIL PROTECTED] http://www.hofr.at *
> *------------------------------------------------------------------------*
-- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
---
For more information on Real-Time Linux see:
http://www.rtlinux.org/rtlinux/
