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What kind of queue depth do you test the read performance? The sequential can be made fast at low queue depth by the SSD controller doing prefetch reads interna
by pkaye 5y ago
What kind of queue depth do you test the read performance? The sequential can be made fast at low queue depth by the SSD controller doing prefetch reads internally. I've worked on such algorithms myself.
- CoolGuySteve 5y agoShow me a benchmark at any queue depth where random reads are as fast as the fastest sequential rate for that drive. It's simply not true. I suspect it has something to do with prediction on the controller but I'm also not confidently spewing a bunch of bullshit about drive architecture unlike this article.