On 02/26/13 12:32, Philip Brown wrote:
On 02/26/13 11:46 AM, Shawn Walker wrote:
On 02/26/13 11:34, Philip Brown wrote:
So, I would suggest that IPS be fixed to use fewer connections. It's
currently being obnoxious to any http front end, and for no significant
benefit.
At the very minimum, it needs to handle connection starvation better.
There's no "fix" here; the value of 20 was chosen after careful
evaluation for determining the optimal number of parallel connections.
In a properly configured environment, it currently provides the best
performance.
yeah... the trouble with that is, many environments are not "properly
configured". Solaris still needs to perform well in non-optimal conditions.
Again, HTTP is not the optimal transport option. The best transport
option remains local file repositories or file repositories accessed via
NFS.
The current transport system has advantages and disadvantages, and
alternatives will be investigated at some point in the future, but for
now proper configuration is important for maximal performance.
It could be enlightening if you put the evaluation data results up for
public scrutiny.
As shown in my email, when our environment was "properly configured",
there was no performance difference in my tests.
Your own experiments indicated it was a few seconds faster. A few years
ago the performance advantage was determined to be ~20% for the typical
install/update case -- which is a much larger test case.
-Shawn
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