even compared to FreeBSD with UFS.
DragonFly works very well under extreme loads; this is a symptom of how it
has been designed over time.
Congratulations. Given all these articles about how bad DragonFly is in
performance i see a completely different picture. I did few my own tests
about non-I/O performance and it seems to be at least not worse than
FreeBSD.
Anyway - if the same webpages are telling constantly how great for example
ZFS is (which actually should not ever get out of SUN labs) - then it's a
clear sign that the only thing you may believe is your own tests.
3) can i set PFS up so all history points would be visible under
some subdirectory?
I would use it for samba-exported PFS so user would be able to
browse it, and eg. recover older versions of files without
asking me for help.
This historical project, while possibly not finished enough for what you
want, may interest you.
http://www.shiningsilence.com/dbsdlog/2011/03/14/7419.html
thank you. Anyway just adding second samba share pointing to
/var/hammer/<pfs> as instructed from previous answer seems to be a good
solution.