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List:       freebsd-hackers
Subject:    Re: PCI IRQ latency
From:       "Daniel O'Connor" <doconnor () gsoft ! com ! au>
Date:       2009-08-19 7:34:10
Message-ID: 200908191652.11825.doconnor () gsoft ! com ! au
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On Wed, 19 Aug 2009, Daniel O'Connor wrote:
> Unfortunately it seems that _something_ blocks interrupts for >4
> milliseconds, however I have no real idea how to go about finding
> what it is.. Does anyone have any suggestions? (apart from get a new
> DAQ card, I know this one already :)

Actually it appears I have misread my diagnostics and it's not a lack of 
interrupts, rather the reading process gets stalled (by up to 5 seconds 
at a time).

Sorry for the noise :(

-- 
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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