Myself and I think dsl@ looked into sysenter/sysexit in 2007 and while it
was faster, it wasn't worth the trouble.
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# $NetBSD: TODO,v 1.19 2015/02/19 11:20:43 mrg Exp $
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# $NetBSD: TODO,v 1.20 2020/01/24 09:33:42 ad Exp $
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THINGS TO BE DONE:
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@ -36,10 +36,6 @@ High Kernel:
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User programs:
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rwall nfs-mountees on shutdown
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i386 kernel support:
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make use of sysenter/sysexit instructions on PIII/4 and Athlon for
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reducing syscall overhead.
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This is a list of suggested smaller projects (in no particular order):
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+ speed up sort(1) by using mmap(2) rather than temp files
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