Thread Safe

Onload User Guide (UG1586)

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1.2 English

Onload assumes that file descriptor modifications are thread-safe and that file descriptors are not concurrently modified by different threads. Concurrent access should not cause problems. This is different from kernel behaviour and users should set EF_FDS_MT_SAFE=0 if the application is not considered thread-safe.

Similar consideration should be given when using epoll() where default concurrency control are disabled in Onload. Users should set EF_EPOLL_MT_SAFE=0.