Very Computer

by **Kenneth P. Turv** » Tue, 18 Nov 1997 04:00:00

Quote:>Is there a way to prevent a process from being swapped out of main memory?
>The reason is a process is blocked on a read() call on the serial port.
>Other programs use memory in the meantime such that this process is
>swapped out by the time data comes in to the serial port. Sometimes the
>process is not not swapped back in fast enough (due to concurrent disk
>access by other processes) and the data is not read properly.

>So is there a way to speed up this swap-in to main memory or can I prevent
>the swap-out in the first place?

This is very system dependent. What system are you running? A bit
more information would be useful.

--

Reasonable people adapt themselves to the world. Unreasonable people
attempt to adapt the world to themselves. All progress, therefore,
depends on unreasonable people.
-- George Bernard Shaw

by **fp..** » Wed, 19 Nov 1997 04:00:00

I am running NeXTSTEP 3.3. Yes, it's not exactly UNIX, but doesn't it
contain BSD libraries?

> >Is there a way to prevent a process from being swapped out of main memory?
> >The reason is a process is blocked on a read() call on the serial port.
> >Other programs use memory in the meantime such that this process is
> >swapped out by the time data comes in to the serial port. Sometimes the
> >process is not not swapped back in fast enough (due to concurrent disk
> >access by other processes) and the data is not read properly.

> >So is there a way to speed up this swap-in to main memory or can I prevent
> >the swap-out in the first place?
> This is very system dependent. What system are you running? A bit
> more information would be useful.
> --

> Reasonable people adapt themselves to the world. Unreasonable people
> attempt to adapt the world to themselves. All progress, therefore,
> depends on unreasonable people.
> -- George Bernard Shaw

Very Computer

How to prevent swap-out

How to prevent swap-out

How to prevent swap-out