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💡 Newskategorie: Linux Tipps
🔗 Quelle: lwn.net
While some parts of the core kernel reached a relatively stable "done" state years ago, others never really seem to be finished. One of the latter variety is undoubtedly the kernel's implementation of spinlocks, which arbitrate access to data at the lowest levels of the kernel. Lock performance can have a significant effect on the performance of the system as a whole, so optimization work can pay back big dividends. Lest one think that this work is finally done, the NUMA-aware qspinlock patch set shows how some more performance can be squeezed out of the kernel's spinlock implementation. ...