[Diagnostics][dotnet-trace] Add collect-linux verb #47894
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| - **perf**: Use `perf list user_events*` to see available events | ||
| - **System monitoring tools**: Any tool that can consume Linux tracepoints | ||
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| ### Examples |
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Lower in this doc are some examples of using dotnet-trace collect in various situations. No need just yet, but we'd probably want to update or add to those examples for the collect-linux functionality once we've clarified what it will be.
This reverts commit e1a3ec7.
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noahfalk
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| When `--profiles`, `--clrevents`, and `--providers` aren’t specified, `collect-linux` enables the default `profile` providing the comprehensive composition: | ||
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| - `dotnet-common` — lightweight .NET runtime diagnostics. | ||
| - `dotnet-thread-time` — runtime thread stack sampling. |
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These events aren't useful under user_events because we aren't including managed stack traces in the event data we report to the kernel. We shouldn't include this in the default. We might even want to include a warning if someone tried to turn this on explicitly with the --profile option.
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Removed from the collect-linux set of profiles. I think we will need some specifier for dotnet-trace list-profiles to delimit which profiles are valid for collect vs collect-linux.
Summary
Add new
collect-linuxverb to utilize new user_events based event tracing.Internal previews