bcachefs SSD+HDD mixed-tier improvements
Work to improve bcachefs for setups that mix SSDs and HDDs in one filesystem, so foreground operations get SSD-class write latencies instead of being dragged down by the HDD, with the HDD relegated to background work.
What it addresses
Even when the SSD is set up for foreground operations and the HDD only for background, write latencies usually end up matching the HDD's.
Shared over time
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bcachefs SSD+HDD mixed-tier improvements
Work to improve bcachefs for setups that mix SSDs and HDDs in one filesystem, so foreground operations get SSD-class write latencies instead of being dragged down by the HDD, with the HDD relegated to background work.
Problem: Even when the SSD is set up for foreground operations and the HDD only for background, write latencies usually end up matching the HDD's.
Posted by @eru · Original comment ↗
“I'm working on making bcachefs useful when you mix both SSD and HDD in one filesystem.”