bcachefs
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Fast mounts update
🕑 Added 2019-02-10 00:59:52 +0000 UTCPersistent alloc info for clean shutdowns is finally done - this means when mounting after a clean shutdown, we don't have to scan metadata anymore, and mounting should be just as fast or faster than other filesystems.
We do still run fsck by default on every mount, so to see any change you'll have to turn that off with the nofsck mount option:
mount -o nofsck /dev/sda1 /mnt
As always, keep the bug reports coming.
Comments
Kent Overstreet
Yeah umount is temporarily slower, since right now we're not writing out all the alloc info until shutdown. The next step though is to do those updates atomically with the extents btree updates, so we won't need to write them all out at shutdown time
It's about faster boot after 'clean shutdown', not otherwise(and totally not about faster shutdown/umount...)
veritanuda
Oh now that is handy for server deployments. Being able to shut down in a hurry can be so important sometimes.
