#bpf — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #bpf, aggregated by home.social.
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Buffered atomic writes, writethrough, and more
In back-to-back sessions at the start of the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit (which spilled over into a third slot), the atomic-buffered-writes fe [...]
https://lwn.net/Articles/1072019/ #LWN #Linux #kernel #PostgreSQL #BPF #io_uring
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Keeping COWs in context (a.k.a. anonymous reverse mapping)
The kernel's reverse-mapping machinery is charged with locating the page-table entries that refer to a given page in memory. The reverse mapping of anonymous pages is handled diff [...]
https://lwn.net/Articles/1072378/ #LWN #Linux #kernel #Git #BPF
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Managing pages outside of the direct map
When Brendan Jackman proposed a session for the 2026 Linux Storage, Filesystem, Memory Management, and BPF Summit, his topic was "a pagetable library for the kernel". During the a [...]
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[$] Using dma-bufs for read and write operations
The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Using dma-bufs for read and write operations
The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Using dma-bufs for read and write operations
The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Using dma-bufs for read and write operations
The kernel's dma-buf subsystem provides a way for drivers to share memory buffers, usually in order to support efficient device-to-device I/O. At the 2026 Linux Storage, Filesyste [...]
https://lwn.net/Articles/1072317/ #LWN #Linux #kernel #Git #BPF #io_uring
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[$] Scaling transparent huge pages to 1GB
As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can suppo [...]
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[$] Scaling transparent huge pages to 1GB
As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can suppo [...]
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[$] Scaling transparent huge pages to 1GB
As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can suppo [...]
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[$] Scaling transparent huge pages to 1GB
As a general rule, when developers talk about huge pages, they are referring to PMD-level pages that are 1MB or 2MB in size, depending on the CPU architecture. Most CPUs can suppo [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. [...]
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[$] Providing 64KB base pages with 4KB kernels, two different ways
Some CPU architectures are able to run with a number of different base-page sizes; using a larger size can often result in better performance at the cost of increased memory use. [...]
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[$] A 2026 DAMON update
The kernel's DAMON subsystem provides user-space monitoring and management of system memory. DAMON is developing rapidly, so an update on its progress has become a regular feature [...]
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[$] A 2026 DAMON update
The kernel's DAMON subsystem provides user-space monitoring and management of system memory. DAMON is developing rapidly, so an update on its progress has become a regular feature [...]
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[$] A 2026 DAMON update
The kernel's DAMON subsystem provides user-space monitoring and management of system memory. DAMON is developing rapidly, so an update on its progress has become a regular feature [...]
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[$] A 2026 DAMON update
The kernel's DAMON subsystem provides user-space monitoring and management of system memory. DAMON is developing rapidly, so an update on its progress has become a regular feature [...]
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[$] A new era for memory-management maintainership
On April 21, Andrew Morton let it be known that he intends to begin stepping away from the maintainership of kernel's memory-management subsystem — a responsibility he has carried [...]
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[$] A new era for memory-management maintainership
On April 21, Andrew Morton let it be known that he intends to begin stepping away from the maintainership of kernel's memory-management subsystem — a responsibility he has carried [...]
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[$] A new era for memory-management maintainership
On April 21, Andrew Morton let it be known that he intends to begin stepping away from the maintainership of kernel's memory-management subsystem — a responsibility he has carried [...]
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[$] A new era for memory-management maintainership
On April 21, Andrew Morton let it be known that he intends to begin stepping away from the maintainership of kernel's memory-management subsystem — a responsibility he has carried [...]
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[$] Hardware-assisted Arm VMs for s390
A recent patch set from Steffen Eiden and others has set the groundwork for allowing hardware-assisted emulation of Arm CPUs on s390 CPUs. Version two of the posting fixes a hand [...]
https://lwn.net/Articles/1069954/ #LWN #Linux #kernel #ArchLinux #BPF
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[$] Hardware-assisted Arm VMs for s390
A recent patch set from Steffen Eiden and others has set the groundwork for allowing hardware-assisted emulation of Arm CPUs on s390 CPUs. Version two of the posting fixes a hand [...]
https://lwn.net/Articles/1069954/ #LWN #Linux #kernel #ArchLinux #BPF
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[$] Hardware-assisted Arm VMs for s390
A recent patch set from Steffen Eiden and others has set the groundwork for allowing hardware-assisted emulation of Arm CPUs on s390 CPUs. Version two of the posting fixes a hand [...]
https://lwn.net/Articles/1069954/ #LWN #Linux #kernel #ArchLinux #BPF
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[$] Hardware-assisted Arm VMs for s390
A recent patch set from Steffen Eiden and others has set the groundwork for allowing hardware-assisted emulation of Arm CPUs on s390 CPUs. Version two of the posting fixes a hand [...]
https://lwn.net/Articles/1069954/ #LWN #Linux #kernel #ArchLinux #BPF
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[$] Restartable sequences, TCMalloc, and Hyrum's Law
Hyrum's Law states that any observable behavior of a system will eventually be depended upon by somebody. The kernel community is currently contending with a clear demonstration o [...]
https://lwn.net/Articles/1070072/ #LWN #Linux #kernel #glibc #BPF
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[$] Restartable sequences, TCMalloc, and Hyrum's Law
Hyrum's Law states that any observable behavior of a system will eventually be depended upon by somebody. The kernel community is currently contending with a clear demonstration o [...]
https://lwn.net/Articles/1070072/ #LWN #Linux #kernel #glibc #BPF
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[$] Restartable sequences, TCMalloc, and Hyrum's Law
Hyrum's Law states that any observable behavior of a system will eventually be depended upon by somebody. The kernel community is currently contending with a clear demonstration o [...]
https://lwn.net/Articles/1070072/ #LWN #Linux #kernel #glibc #BPF
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[$] Restartable sequences, TCMalloc, and Hyrum's Law
Hyrum's Law states that any observable behavior of a system will eventually be depended upon by somebody. The kernel community is currently contending with a clear demonstration o [...]
https://lwn.net/Articles/1070072/ #LWN #Linux #kernel #glibc #BPF
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[$] One Sized trait does not fit all
In Rust, types either possess a constant size known at compile time, or a dynamically calculated size known at run time. That is fine for most purposes, but recent proposals for th [...]