Pavel Kovalenko created IGNITE-10493:
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Summary: Refactor exchange stages time measurements
Key: IGNITE-10493
URL: https://issues.apache.org/jira/browse/IGNITE-10493
Project: Ignite
Issue Type: Improvement
Components: cache
Affects Versions: 2.7
Reporter: Pavel Kovalenko
Fix For: 2.8
At the current implementation, we don't cover and measure all possible code
executions that influence on PME time. Instead of it we just measure the
hottest separate parts with the following hardcoded pattern:
{noformat}
long time = currentTime();
... // some code block
print ("Stage name performed in " + (currentTime() - time));
{noformat}
This approach can be improved. Instead of declaring time variable and print the
message to log immediately we can introduce a utility class (TimesBag) that
will hold all stages and their times. The content of TimesBag can be printed
when the exchange future is done.
As exchange is a linear process that executes init stage by exchange-worker and
finish stage by one of the sys thread we can easily cover all exchange code
base by time cutoffs.
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