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Support for NUMA syscalls #937

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krh opened this issue Nov 19, 2023 · 3 comments
Open

Support for NUMA syscalls #937

krh opened this issue Nov 19, 2023 · 3 comments
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enhancement New feature or request

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@krh
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krh commented Nov 19, 2023

Any plans for adding support for NUMA syscalls?

extern long get_mempolicy(int *mode, unsigned long *nmask,
                        unsigned long maxnode, void *addr, unsigned flags);
extern long mbind(void *start, unsigned long len, int mode,
        const unsigned long *nmask, unsigned long maxnode, unsigned flags);
extern long set_mempolicy(int mode, const unsigned long *nmask,
                          unsigned long maxnode);
extern long migrate_pages(int pid, unsigned long maxnode,
                          const unsigned long *frommask,
                          const unsigned long *tomask);

extern long move_pages(int pid, unsigned long count,
                void **pages, const int *nodes, int *status, int flags);

I could write up a MR for this, unless it's something that's been deemed out of scope?
@sunfishcode sunfishcode added the enhancement New feature or request label Nov 19, 2023
@sunfishcode
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It's in scope, just not implemented yet. An MR would be welcome!

krh added a commit to krh/rustix that referenced this issue Nov 20, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
f321b15 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
@krh
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krh commented Nov 20, 2023

Ok, #938 is a start, but doesn't add all the syscalls, or even all the modes of get_mempolicy. It also dependes on a PR for linux-raw-sys.

@krh
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krh commented Nov 20, 2023

sunfishcode/linux-raw-sys#96

krh added a commit to krh/rustix that referenced this issue Nov 29, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
c8b2d13 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
krh added a commit to krh/rustix that referenced this issue Nov 29, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
097eae4 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
krh added a commit to krh/rustix that referenced this issue Nov 29, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
49a7171 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
krh added a commit to krh/rustix that referenced this issue Nov 30, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
52f2271 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
krh added a commit to krh/rustix that referenced this issue Nov 30, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
4c5f6ce 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
krh added a commit to krh/rustix that referenced this issue Nov 30, 2023
@krh
Add support for mbind, get_mempolicy and set_mempolicy (bytecod…
d7e9577 
…ealliance#937)

This adds support for the `mbind`, `set_mempolicy` and `get_mempolicy`
NUMA syscalls.  The `get_mempolicy` syscall has a few different modes
of operation, depending on the flags, which is demultiplexed into
`get_mempolicy_node` and `get_mempolicy_next_node` for now.  There's a
couple of other modes that writes into the variable length bit array,
which aren't implemented for now.
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@krh @sunfishcode