How to increase the priority of a child pthread relative to the parent thread?

Setting a priority under the default scheduling policy ( SCHED_OTHER ) isn't valid. You need to switch to the SCHED_RR policy if you want to use a SCHED_RR priority.

Setting a priority under the default scheduling policy (SCHED_OTHER) isn't valid. You need to switch to the SCHED_RR policy if you want to use a SCHED_RR priority: pthread_attr_setschedpolicy(&tattr, SCHED_RR); You also shouldn't be setting it to the maximum priority - if you just want it higher priority than the main thread, then a priority of 1 will be sufficient. (You may find that setting the maximum priority fails with EPERM if you're not root, anyway).

Sweet, that works thanks – tolomea Nov 9 '09 at 23:33.

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