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KernelTrap: Benchmarking the Lockless Pagecache

May 01, 2006, 01:00 (0 Talkback[s])

"Anticipatory I/O scheduler author Nick Piggin has been maintaining a lockless pagecache patch for many months. In March he provided a draft document that details the lockless radix-tree utilized by the pagecache, in which it describes the Read-Copy Update (RCU) algorithm used to share a dynamic data structure without using locks. Jens Axboe recently posted some benchmark results demonstrating some workloads that benefit from the lockless pagecache..."

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