Hi again Edward, Here's what I want to try to do with reiser4 in meantime. I'd appreciate some hints on that all... So, first thing I'd like to implement is TRIM/discard support, both online (via -o discard) and in a separate FITRIM ioctl(). That's just because I've got an SSD two days ago and thus now have to use in rootfs some discard-aware fs like ext4. And then I want to do something with performance: sometimes during heavy I/O to a slow /home storage (especially when it's multithreaded) many processes, including the DE, just get stuck in "D" state and sit there for a minute or two with load average of apx. 5.5 (on a hyperthreaded 2-core CPU). For the first, I can look into other filesystems' implementations, but I'll probably be unsure at which layer to put the actual discard call (in order not to break reiser4's transactional nature). And for the second, I just don't know why does that happen. Can it be due to some r4-specific things/issues or that's just a horribly slow random access speed of my hw? Thanks, Ivan. -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
