Kugutsumen wrote:
> On this quad core box with 8 gig of ram and a 4 gig zfs ARC, I keep seeing 
> tons of cross calls and cpu migration.
> 
> cross calls go up to 4000 during read only operations and up to 30000 during 
> read and write operations.
> 
> The only thing running is postgresql and a single threaded import script 
> written in python.
> The whole import is wrapped in a transaction and constraints are deferred. I 
> am using a recordsize of 8k for data and logs and fsync is off.

AFAIK one workaround may be to bind the process to a specific processor
(or processor set), see pbind(1) and psrset(1M) manual pages for further
information...

----

Bye,
Roland

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