Timer Interrupts, please CC hamilton@sedsystems.ca
From: Kendrick Hamilton
Date: Mon Sep 08 2003 - 14:11:20 EST
Hello,
Please send/cc responses to hamilton@xxxxxxxxxxxxx
We are using a custom modulator card with the Linux 2.2.16 kernel
running on an IBM e-server (dual 2.8GHz, a lot of RAM). The modulator
card uses interrupts to send data (the card has a large FIFO and
interrupts when almost empty). The interrupt service routine re-fills
the fifo. While it is re-filling the FIFO interrupts are disabled. We
are noticing horrible clock skew.
Can you tell me the frequency of timer interrupts used by the linux
2.2.16 kernel on Intel x86 SMP platform. I want to know how long my
interrupt service routine can leave the interrupt disabled.
TIA
Kendrick Hamilton
hamilton@xxxxxxxxxxxxx
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