Turn on PREEMPTION by default. After fixing several bugs over time, the
last show-stopper keeping PREEMPTION from being usable on sparc64 should have been dealt with in r230662. At least on 2-way systems, PREEMPTION causes a little bit of a degradation in worldstone performance. However, FreeBSD seems to have started building up regressions in !PREEMPTION cases so sparc64 better should not be an oddball in this regard. MFC after: 1 week
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=234348
@ -27,7 +27,7 @@ makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
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# At this time all platforms are supported, as-is.
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options SCHED_ULE # ULE scheduler
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#options PREEMPTION # Enable kernel thread preemption
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options PREEMPTION # Enable kernel thread preemption
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options INET # InterNETworking
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options INET6 # IPv6 communications protocols
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options SCTP # Stream Control Transmission Protocol
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