jpountz opened a new pull request, #13907:
URL: https://github.com/apache/lucene/pull/13907
This commit tries to save calls to `madvise` which are not necessary, either
because they map to the OS' default, or because the advice would be overridden
later on anyway. I have not noticed specific problems with this, but it seems
desirable to keep calls to `madvise` to a minimum.
As a consequence:
- Files that are open with `ReadAdvice.NORMAL` do not call `madvise` since
this is the OS' default.
- Compound files are always open with `ReadAdvice.NORMAL`, and the actual
is only set when opening sub files of these compound files.
To make the latter less trappy, the `IOContext` parameter has been removed
from `CompoundFormat#getCompoundReader`.
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