Re: [Simh] Batch vs Interactive

2010-05-17 Thread dott.Piergiorgio
Il 17/05/2010 08:41, prenou...@yahoo.fr ha scritto: > Good morning, > > Made a new SimH machine and encounter the following problem. > > When a batch runs, no way to work in interactive, the response time is > veryyy slow. > > Does anybody have an idea ? > > Have enough paging and swap but... what

Re: [Simh] Batch vs interactive

2010-05-17 Thread Gary Lee Phillips
The answer depends on what machine you are emulating and with what operating system. Something like a VAX with OpenVMS has a lot of tuning parameters within the operating system for balancing batch and foreground priorities. Most systems that had simultaneous batch and interactive operation were se

Re: [Simh] Batch vs interactive

2010-05-17 Thread Villy Madsen
One of the issues that I have run up against running OPENVMS on simh is that the tuning parameters for the OS are not optimal for todays high speed disks. If you run a IO intensive application (like synching mirrored disks under VMS) the IO operations can easily chew up all of the emulated cycle