Esoteric

The inside scoop on SQL / debugging you won't find anywhere else!

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  • Blog Post: Exotic spinlocks: X_PACKET_LIST and XID_ARRAY

    A Twitter conversation sparked this blog post; the question there was about the relevance of the X_PACKET_LIST spinlock. As with most spinlocks, there is no public documentation on this one, and that is primarily because the spinlock is an implementation detail and can change from release to release...
  • Blog Post: Exotic spinlocks: XTS_MGR

    My friend and colleague - Fabricio Catae - had blogged about spinlocks previously. In one of the comments, a visitor has asked him about the XTS_MGR spinlock. There is no public documentation about this spinlock, because it is largely implementation specific detail. However, a general explanation...
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