From: "Andres Freund" <and...@2ndquadrant.com>
On 2014-02-18 01:35:52 +0900, MauMau wrote:
For example, please see the max latencies of test set 2 (PG 9.3) and test
set 4 (xlog scaling with padding). They are 207.359 and 1219.422
respectively. The throughput is of course greatly improved, but I think
the
response time should not be sacrificed as much as possible. There are
some
users who are sensitive to max latency, such as stock exchange and online
games.
You need to compare both at the same throughput to have any meaningful
comparison.
I'm sorry for my lack of understanding, but could you tell me why you think
so? When the user upgrades to 9.4 and runs the same workload, he would
experience vastly increased max latency --- or in other words, greater
variance in response times. With my simple understanding, that sounds like
a problem for response-sensitive users.
Regards
MauMau
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