3 ms·
"Checksum-all-the-things is a basic feature of a lot of file systems" "A lot"? Does anything but ZFS and maybe btrfs do this? Ext4 anf XFS — two very common fi
by FooBarWidget 3y ago
"Checksum-all-the-things is a basic feature of a lot of file systems"
"A lot"? Does anything but ZFS and maybe btrfs do this? Ext4 anf XFS — two very common filesystems — still don't have data checksums.
- Filligree 3y agoBcachefs, and LVM also has a way to do it. Unfortunately I’m not aware of any filesystem that does it while maintaining the full bandwidth of a modern NVMe. Not even with the extra reads factored in; on ZFS I get 800 MB/s max.
- EraYaN 3y agoZFS should absolutely be able to go faster even with lz4 compression I get writes above 5 GB/s on a older 32-core EPYC CPU. And that is with mostly random and already compressed data. And that write speed is a limitation of the RAIDz2 on top of not the fastest drives (6 PCIe 3.0 intel U.2 ones from 2 years ago).
- Filligree 3y agoMaybe I've configured something wrong, then. I'll do some tests.