Re: [PATCH] user_events: Enable user processes to create and write to trace events
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- Subject: Re: [PATCH] user_events: Enable user processes to create and write to trace events
- From: <Peter.Enderborg@xxxxxxxx>
- Date: Fri, 8 Oct 2021 13:11:59 +0000
- Accept-language: en-GB, en-US
- Cc: <linux-trace-devel@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>
- In-reply-to: <20211005224428.2551-1-beaub@linux.microsoft.com>
- References: <20211005224428.2551-1-beaub@linux.microsoft.com>
- User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0
On 10/6/21 12:44 AM, Beau Belgrave wrote:
> User mode processes that wish to use trace events to get data into
> ftrace, perf, eBPF, etc are limited to uprobes today. The user events
> features enables an ABI for user mode processes to create and write to
> trace events that are isolated from kernel level trace events. This
> enables a faster path for tracing from user mode data as well as opens
> managed code to participate in trace events, where stub locations are
> dynamic.
Is this not very much what the trace_marker do?
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