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$ iostress 32 512 0 > /vtty # before
512 calls, 0 bytes. avg 121133
$ iostress 32 512 0 > /vtty # after
512 calls, 0 bytes. avg 103540
103540/121133 = ~85%
I think the tiny bit of added complexity is worth it here.
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i have been planning to implement something like this for a while now.
it should be faster when doing consecutive syscalls (to be tested).
it will also be helpful in writing the elf loader
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this is big in terms of speed, it avoids a lot of unnecessary context
switches
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It's not really just a text section, as it's writeable too. Makes gcc
shut up about invalid section attributes.
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...instead of letting the hwole process stay around.
This could end up a bit more complex, I have no idea how to test killing
processes during vfs requests.
The upside of this is that I can remove all the deathbed/deadparent
weirdness now.
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what a mess
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dead processes now can't have alive children
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other parts of the kernel don't need to care about which process exactly
gets switched into
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this makes `process_transition` safe again, as it won't be able to free
processes. it was a pretty unintuitive behaviour
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