Re:In-Memory Filesystems in Rust
by cbondurant on Monday August 25, 2025 @10:41AM
(#45014381)
The thing that finally made me realize just how fast file IO is today, is when I was looking into doing my own impl of 1brc in rust for practice.
I had expected that without the ramdisk, that file IO would have been the bottleneck for my testing, but in fact found that even with regular file IO my cpu was still the bottleneck, and multi-threading provided a massive performance boost. Completely decimating my expectations.
I had expected that without the ramdisk, that file IO would have been the bottleneck for my testing, but in fact found that even with regular file IO my cpu was still the bottleneck, and multi-threading provided a massive performance boost. Completely decimating my expectations.