Proposed 6.2 em RELEASE patch
scottl at samsco.org
Mon Nov 13 05:15:50 UTC 2006
Mike Tancsa wrote:
> At 11:05 PM 11/12/2006, Scott Long wrote:
>> Mike Tancsa wrote:
>>> However, if I turn on fastforwarding, its back to the old behavior
>>> with it locking up. This was with the stock driver. I will try the
>>> same test with
>>> #define EM_FAST_INTR 1
>>> as well as taking out the nfs option from the kernel driver.
>>> Anything else to tune with ?
>> Would you mind going so far as to adding NO_ADAPTIVE_MUTEXES? This is
> Wow, it totally survives 2 streams (2 in one direction or 2 in opposite
> directions)... AND it almost can survive a 3rd! It does seem to be
> dropping packets on em1 when I add in a second stream blasting in the
> same direction, but its survives. You can see at ** I add in the second
> stream, and the outbound on em1 drops, even though more packets are
> going through. I stop the second stream then add a stream going in the
> other direction. Oddly enough, with a UP kernel it cant do 2 streams,
> just the one. I thought the extra locking on SMP would make it worse ?
> In this case it seems no.
Is this with EM_INTR_FAST enabled also?
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