[patch] zfs livelock and thread priorities

[Peter Schuller]

> I find it odd that they would pause for up to 5 seconds, though.  I  
> would expect the throttling to occur over a much smaller time span.   
> Do you see similarly large pauses in disk I/O during a scrub?

It was 1 second bursts, one per 5 second transaction commit period
yes. My memory is too fuzzy on the details, but it was consistent with
my interpretation of the source. 

-- 
/ Peter Schuller

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