On Tue, 24 Sep 2024 16:43:57 GMT, Antón Seoane <d...@openjdk.org> wrote:
>> Hi all, >> >> Currently, the Unified Logging framework defaults to three decorators >> (uptime, level, tags) whenever the user does not specify otherwise through >> `-Xlog`. This can result in cumbersome input whenever a specific user that >> relies on a particular tag(s) has some predefined needs. For example, C2 >> developers rarely need decorations, and having to manually specify this >> every time results inconvenient. >> >> To address this, this PR enables the possibility of adding tag-specific >> default decorators to UL. These defaults are in no way overriding user input >> -- they will only act whenever `-Xlog` has no decorators supplied and there >> is a positive match with the pre-specified defaults. Such a match is based >> on the following: >> >> - Inclusion: if `-Xlog:jit+compilation` is provided, a default for `jit` may >> be applied. >> - Specificity: if, for the above line, there is a more specific default for >> `jit+compilation` the latter shall be applied. Upon equal specificity cases, >> both defaults will be applied. >> - Additionally, defaults may target a specific log level. >> >> Decorators are also associated with an output file, so an output device may >> only have one set of decorators. For this reason, if different >> `LogSelection`s trigger defaults, none is to be applied. >> >> In summary, these defaults may be seen as a "tailored" or "flavoured" >> version of the existing "uptime-level-tags" current defaults. >> >> Please consider this PR, and thanks! > > Antón Seoane has updated the pull request incrementally with one additional > commit since the last revision: > > Removed whitespace The main point of importance here is that anything user-specified (from `-Xlog` or `jcmd`) will take priority. We should probably add some information regarding this on the `-Xlog:help` page. ------------- PR Comment: https://git.openjdk.org/jdk/pull/20988#issuecomment-2373534931
