realtime:documentation:howto:applications:application_base
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realtime:documentation:howto:applications:application_base [2023/08/29 07:45] kaiwan Add a section on leveraging the capabilities model to run the RT app as non-root (continued) |
realtime:documentation:howto:applications:application_base [2024/05/31 15:54] (current) alison [Scheduling and priority] |
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| the pthread attributes and not to use the inherit scheduling of the | the pthread attributes and not to use the inherit scheduling of the | ||
| thread which created the real-time thread. | thread which created the real-time thread. | ||
| + | </wrap> | ||
| + | - **Problems with pthread condition variables** \\ <wrap> | ||
| + | Multithreaded applications which rely on glibc's libpthread are prone to unexpected latency delays since its condition variable implementation does not honor priority inheritance ([[https://sourceware.org/bugzilla/show_bug.cgi?id=11588|bugzilla]]). Unfortunately glibc's DNS resolver and asynchronous I/O implementations depend in turn on these condition variables. | ||
| + | [[https://github.com/dvhart/librtpi|librtpi]] is an alternative LGPL-licensed pthread implementation which supports priority inheritance, and whose API is as close to glibc's as possible. The alternative [[https://www.musl-libc.org/|MUSL libc]] has a pthread condition variable implementation similar to glibc's. | ||
| </wrap> | </wrap> | ||
realtime/documentation/howto/applications/application_base.1693295141.txt.gz ยท Last modified: 2023/08/29 07:45 by kaiwan
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