From: yanyh15@gmail.com (Yonghong Yan)
Subject: [lttng-dev] process/thread-specific UST tracing
Date: Fri, 15 May 2020 13:16:47 -0400 [thread overview]
Message-ID: <CACJEY85H4OMTz9ggfZZP3QCXoWgLiJgsMVNTP8LNBAF67mQTEQ@mail.gmail.com> (raw)
I am tracing a multiprocess/multithreaded code (MPI/OpenMP) using
lttng-ust. Right now, I need to include process id and thread id for each
event in order to generate process/thread indexed view of the traces. Is
there a way that I can store per-process events into a specific buffer
without mixing the events with other events that are generated on the same
CPU? The same thing for per-thread events, I would like lttng or CTF to
allow to store per-thread events in a specific buffer without mixing the
events with other events on the same CPU channel. With that feature, I do
not need to store process id and thread id in each event and then need to
query all the events in order to collect per-process or per-thread event.
Thank you
Yonghong
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next reply other threads:[~2020-05-15 17:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-15 17:16 Yonghong Yan [this message]
2020-05-15 19:15 ` Mathieu Desnoyers
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