Craig Ringer wrote:

> The kernel will usually do some packet aggregation unless we use
> TCP_NODELAY (which we don't and shouldn't)

Not sure. As a point of comparison, Oracle has it as a tunable
parameter (TCP.NODELAY), and they changed its default from
No to Yes starting from their 10g R2.

Best regards,
Daniel Vérité
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Twitter: @DanielVerite

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