Even if you give the Linux thread processor time and it throws an interrupt then? ----- Original Message ----- From: <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Tuesday, April 24, 2001 11:35 PM Subject: Re: [rtl] Latency question > On Tue, Apr 24, 2001 at 10:05:57AM -0400, Stewart Larsen wrote: > > Hello, > > > > I have a question about latency. If I'm running RTLinux on a FADS860 board, I'm wondering how long can I expect for the Linux kernel to disable the interrupts if It's interrupted for say keyboard input or traffic over the ethernet. I'm not even sure if I asked that the right way. If I'm depending on interrupts for my real time app, an interrupt from a non rtl process( keyboard, mouse, net, etc..) would disable interrupts for the RTL process while in it's ISR, is this correct? Or since the RTL has ths highest priority, would it's interrupt override the disable interrupt command from the lower priority process? > > > > > RTL prevents Linux from disabling interrupts. Instead Linux is given a > emulated interrupt controller in software. Interrupts for the RT system > cannot be delayed by Linux. > > > -- > > Stewart Larsen > > > > -- > --------------------------------------------------------- > Victor Yodaiken > Finite State Machine Labs: The RTLinux Company. > www.fsmlabs.com www.rtlinux.com > -- [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/ > > -- [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/
