Posted: Fri May 07, 2004 2:10 am Post subject: [Asterisk-doc] docs installation.xml,1.8,1.9
Comments:
Update of /cvsroot/asterisk/docs
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv14654/docs
Modified Files:
installation.xml
Log Message:
blitzrage
- information about IRQ Sharing
Index: installation.xml
===================================================================
RCS file: /cvsroot/asterisk/docs/installation.xml,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** installation.xml 7 May 2004 01:52:40 -0000 1.8
--- installation.xml 7 May 2004 02:10:34 -0000 1.9
***************
*** 65,70 ****
<title>IRQ Sharing Issues</title>
<para>
! [Explain why sharing interrupts is a bad thing, considering
! the number of interrupts that the Digium hardware creates.]
</para>
</sect2>
--- 65,77 ----
<title>IRQ Sharing Issues</title>
<para>
! The X100P and etc.. tend to generate a large amount of interupts. Servicing them
! takes time and drivers may not be able to do it on-time. If another device is
! processing the same shared IRQ, the IRQ line connot receive another one. It does
! tend to work better on SMP (APIC) systems. On single chip systems you can get
! interupt misses and messed up clocking. Any of Digium's cards or other telephony
! cards can be subject to this problem. Because the precise delivery of IRQ's is
! very much necessary in telephony, one should not share IRQ's with anything.
! This is not to say you will necessarily have IRQ sharing conflicts, but it is
! something to be aware of.
</para>
</sect2>
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