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Mazzoli: How fast are Linux pipes anyway?

Mazzoli: How fast are Linux pipes anyway?

Posted Jun 2, 2022 16:12 UTC (Thu) by Bigos (subscriber, #96807)
In reply to: Mazzoli: How fast are Linux pipes anyway? by atnot
Parent article: Mazzoli: How fast are Linux pipes anyway?

I believe the get_user_pages* call also increments the reference count on struct page, which I would say should be the bottleneck here.

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Mazzoli: How fast are Linux pipes anyway?

Posted Jun 4, 2022 1:55 UTC (Sat) by scientes (guest, #83068) [Link]

get_user_pages_* was a personal project of Linus Torvalds, who voiced regret over ever adding splice, because it failed to live up to its expectations. I feel this article has (finally) explained to me what those expectations were.


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