realtime:documentation:howto:applications:application_base
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realtime:documentation:howto:applications:application_base [2024/05/27 23:42] alison [Scheduling and priority] |
realtime:documentation:howto:applications:application_base [2024/05/31 15:54] (current) alison [Scheduling and priority] |
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| - **Problems with pthread condition variables** \\ <wrap> | - **Problems with pthread condition variables** \\ <wrap> | ||
| - | Multithreaded applications which rely on glibc's libpthread are prone to unexpected latency delays since its pthread 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. | + | 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. | [[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.1716853353.txt.gz ยท Last modified: 2024/05/27 23:42 by alison
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