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| duflu | RAOF: When you get time, could you cast your eyes over this and tell us if we should worry? https://bugs.launchpad.net/mir/+bug/1568966 | 03:40 |
|---|---|---|
| ubot5` | Launchpad bug 1568966 in Mir "[regression] mir_integration_tests take significantly longer when running with ctest" [Medium,New] | 03:40 |
| RAOF | That's odd :)( | 03:42 |
| RAOF | duflu: In case you're particularly interested: https://code.launchpad.net/~raof/mir/emfasten-mir-integration-tests/+merge/291578 | 05:05 |
| duflu | RAOF: Weird, ta | 05:14 |
| RAOF | I have apparently confused launchpad too much for it to show any commits. | 05:16 |
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| tsdgeos | alf__: hi, have a sec? | 10:32 |
| tsdgeos | or anyone that understands how the lttng stuff in mir works | 10:36 |
| tsdgeos | i have a question | 10:37 |
| alf__ | tsdgeos: sure, what's up? | 10:37 |
| tsdgeos | alf__: trying to understand the lttng stuff you guys have, and i'm a bit lost on what TracepointProvider & subclasses are used for | 10:37 |
| tsdgeos | it loads a library but as far as i can see it never uses it for anything? | 10:38 |
| alf__ | tsdgeos: It's used implicitly by lttng. The idea is that we want to load lttng only if the user requests it (i.e., uses an lttng report). | 10:42 |
| alf__ | tsdgeos: lttng supports "TRACEPOINT_PROBE_DYNAMIC_LINKAGE" which tells it to load the tracepoint symbols at runtime | 10:44 |
| tsdgeos | ah, i see | 10:45 |
| tsdgeos | you have client/logging/input_receiver_report.h and client/lttng/input_receiver_report.h | 10:45 |
| tsdgeos | and only when the second is used | 10:45 |
| tsdgeos | the lib is actually loaded | 10:45 |
| alf__ | tsdgeos: right, and in client/lttng/input_receiver_report.cpp note that the tracepoints are used in "#define TRACEPOINT_PROBE_DYNAMIC_LINKAGE" mode | 10:48 |
| tsdgeos | alf__: oki | 10:49 |
| tsdgeos | alf__: mir_tracepoint is basically a defined to tracepoint, right? | 10:49 |
| alf__ | tsdgeos: yes, mir_tracepoint used to provide a workaround for building with clang, but the problem got fixed eventually and we removed the workaround but not the name | 10:53 |
| tsdgeos | ok, that helps a lot | 10:54 |
| tsdgeos | tx | 10:54 |
| alf__ | tsdgeos: np | 10:54 |
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