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Re:SSDs Have Become Fast, Except in the Cloud by Nextgrid on Tuesday February 20, 2024 @06:20PM (#39448284)
Ah sorry, my bad. You are correct that you can fire off many random access operations in parallel and get good throughput that way.

The problem is that this is not possible when the next IO request depends on the result of a previous one, like in a database where you must first read the index to know the location of the row data itself.

Re:SSDs Have Become Fast, Except in the Cloud by Ericson2314 on Tuesday February 20, 2024 @07:01PM (#39448578)
OK thanks yes that makes sense. Pipelining problems are real.
Re:SSDs Have Become Fast, Except in the Cloud by Ericson2314 on Wednesday February 21, 2024 @03:54PM (#39459410)
(The network indeed doesn't care, but bandwidth of dependent rather than independent accesses depends on latency)