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preemtible Kernel



Hello,

From the introduction of kernel 2.6 on, the kernel can be configured to be preemtible. This promises better latency.

Many did not use this feature in the past: Why?

When I look at Fedora's 7 kernel source configuration (with 'make menuconfig'), the kernel is also not preemtible, but "voluntarily preemtible": What does that mean?

thanks and greets
Boris


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