PCI IRQ latency

Daniel O'Connor doconnor at gsoft.com.au
Wed Aug 19 07:22:21 UTC 2009


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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