TAU_PROFILE_SET_CONTEXT(3) on Linux
The text 7049a6b6bed4, as Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy), Debian 6.0 (Squeeze), Debian 4.0 (Etch) shipped it. The page shows this text now.
Informs the measurement system of the context id