Yunkai Zhang created TS-2137:
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Summary: Use eventfd instread of pthread signal/wait to speed up
logging
Key: TS-2137
URL: https://issues.apache.org/jira/browse/TS-2137
Project: Traffic Server
Issue Type: Improvement
Components: Logging
Reporter: Yunkai Zhang
At the end of lifetime of each http connection, the logging action will call
pthread_cond_signal() to notify flush threads.
As we known, pthread_cond_signal() need to take lock, it'll cause more context
switch than eventfd.
The logging speed is very important for us which will affect RT, it is worth
optimizing.
I can confirm that evenfd is supported in Linux platform.
Let's optimize it in Linux firstly.
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