On Thu, 21 Sep 2023 20:43:56 GMT, Yi-Fan Tsai <d...@openjdk.org> wrote:
> `jcmd Compiler.perfmap` uses the hard-coded file name for a perf map: > `/tmp/perf-%d.map`. This change adds an optional argument for specifying a > file name. > > `jcmd PID help Compiler.perfmap` shows the following usage. > > > Compiler.perfmap > Write map file for Linux perf tool. > > Impact: Low > > Syntax : Compiler.perfmap [<filename>] > > Arguments: > filename : [optional] Name of the map file (STRING, no default value) > > > The following section of man page is also updated. (`man -l > src/jdk.jcmd/share/man/jcmd.1`) > > > Compiler.perfmap [arguments] (Linux only) > Write map file for Linux perf tool. > > Impact: Low > > arguments: > > ยท filename: (Optional) Name of the map file (STRING, no default > value) > > If filename is not specified, a default file name is chosen > using the pid of the target JVM process. For example, if the pid is 12345, > then > the default filename will be /tmp/perf-12345.map. This pull request has now been integrated. Changeset: a5122d7f Author: Yi-Fan Tsai <yft...@amazon.com> Committer: Paul Hohensee <p...@openjdk.org> URL: https://git.openjdk.org/jdk/commit/a5122d7f6c36a4c98ea4bea7a7c8081e2a4dadca Stats: 56 lines in 6 files changed: 37 ins; 3 del; 16 mod 8314029: Add file name parameter to Compiler.perfmap Reviewed-by: cjplummer, eastigeevich ------------- PR: https://git.openjdk.org/jdk/pull/15871
