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atomic_xsub in std::intrinsics - Rust
Subtract from the current value, returning the previous value. `T` must be an integer or pointer type. `U` must be the same as `T` if that is an integer type, or `usize` if `T` is a pointer type.doc.rust-lang.org/std/intrinsics/fn.atomic_xsub.htmlThu Feb 12 20:19:35 GMT 2026 4.5K bytes -
atomic_cxchg in std::intrinsics - Rust
Stores a value if the current value is the same as the `old` value. `T` must be an integer or pointer type.doc.rust-lang.org/std/intrinsics/fn.atomic_cxchg.htmlThu Feb 12 20:19:35 GMT 2026 4.5K bytes -
black_box in std::intrinsics - Rust
See documentation of `std::hint::black_box` for details.doc.rust-lang.org/std/intrinsics/fn.black_box.htmlThu Feb 12 20:19:35 GMT 2026 3.5K bytes -
placement-group.rst.txt
========== PG (Placement Group) notes ========== Miscellaneous copy-pastes from emails, when this gets cleaned up it should move out of /dev. Overview ======== PG = "placement group". When placing ...docs.ceph.com/en/latest/_sources/dev/placement-group.rst.txtWed Feb 08 19:04:47 GMT 2023 6.4K bytes -
assert_inhabited in std::intrinsics - Rust
A guard for unsafe functions that cannot ever be executed if `T` is uninhabited: This will statically either panic, or do nothing. It does not guarantee to ever panic, and should only be called if an assertion failure will imply language UB in the following code.doc.rust-lang.org/std/intrinsics/fn.assert_inhabited.htmlThu Feb 12 20:19:35 GMT 2026 3.9K bytes -
index.rst.txt
========== ceph-volume developer documentation ========== .. rubric:: Contents .. toctree:: :maxdepth: 1 plugins lvm zfs systemd 0docs.ceph.com/en/latest/_sources/dev/ceph-volume/index.rst.txtWed Feb 08 19:04:48 GMT 2023 198 bytes -
logging.rst.txt
Use of the cluster log ========== (Note: none of this applies to the local "dout" logging. This is about the cluster log that we send through the mon daemons) Severity -------- Use ERR for situatio...docs.ceph.com/en/latest/_sources/dev/logging.rst.txtWed Feb 08 19:04:46 GMT 2023 4.7K bytes -
create_dir_all in std::fs - Rust
Recursively create a directory and all of its parent components if they are missing.doc.rust-lang.org/std/fs/fn.create_dir_all.htmlThu Feb 12 20:19:35 GMT 2026 6.1K bytes -
logs.rst.txt
========== Debug logs ========== The main debugging tool for Ceph is the dout and derr logging functions. Collectively, these are referred to as "dout logging." Dout has several log faculties, whic...docs.ceph.com/en/latest/_sources/dev/logs.rst.txtWed Feb 08 19:04:45 GMT 2023 2.5K bytes -
perf.rst.txt
Using perf ========== Top:: sudo perf top -p `pidof ceph-osd` To capture some data with call graphs:: sudo perf record -p `pidof ceph-osd` -F 99 --call-graph dwarf -- sleep 60 To view by caller (wh...docs.ceph.com/en/latest/_sources/dev/perf.rst.txtWed Feb 08 19:04:47 GMT 2023 1.4K bytes