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| author | wuqiang.matt <[email protected]> | 2023-10-17 13:56:50 +0000 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <[email protected]> | 2023-10-18 13:35:36 +0000 |
| commit | b4edb8d2d4647a71a246d91fe34ff25c2c5f3481 (patch) | |
| tree | 3ceb410a8d74c411e2eeed26d9b2479e5dfea3c5 /lib/test_objpool.c | |
| parent | tracing/eprobe: drop unneeded breaks (diff) | |
| download | kernel-b4edb8d2d4647a71a246d91fe34ff25c2c5f3481.tar.gz kernel-b4edb8d2d4647a71a246d91fe34ff25c2c5f3481.zip | |
lib: objpool added: ring-array based lockless MPMC
objpool is a scalable implementation of high performance queue for
object allocation and reclamation, such as kretprobe instances.
With leveraging percpu ring-array to mitigate hot spots of memory
contention, it delivers near-linear scalability for high parallel
scenarios. The objpool is best suited for the following cases:
1) Memory allocation or reclamation are prohibited or too expensive
2) Consumers are of different priorities, such as irqs and threads
Limitations:
1) Maximum objects (capacity) is fixed after objpool creation
2) All pre-allocated objects are managed in percpu ring array,
which consumes more memory than linked lists
Link: https://lore.kernel.org/all/[email protected]/
Signed-off-by: wuqiang.matt <[email protected]>
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Signed-off-by: Masami Hiramatsu (Google) <[email protected]>
Diffstat (limited to 'lib/test_objpool.c')
0 files changed, 0 insertions, 0 deletions