Hi,
I have some doubts
regarding the way in which the Pth scheduler implements"Priority
based non-preemptive Scheduling".
My program is
using the pth "cond" and "mutex" variables for synchronization between the
threads.
From a low priority thread, I am calling pth_cond_notify() and immediately a higher priority thread (which was there in the ready queue) was getting scheduled.
I analyzed the pth_cond_notify () and saw a pth_yield() inside that function. This pth_yield() is "preempting" the lower priority thread that called the pth_cond_notify().
But my application was expecting a pure non-preemptive response.
Can I achieve the non-preemptive response if I remove the pth_yield() in pth_cond_notify() ?
Will there be any performance issue with the Pth library, if I remove the pth_yield () in pth_cond_notify() ?
Regards
Vinu
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