User: Password:
|
|
Subscribe / Log in / New account

That massive filesystem thread

That massive filesystem thread

Posted Apr 2, 2009 0:37 UTC (Thu) by davecb (subscriber, #1574)
In reply to: That massive filesystem thread by bakterie
Parent article: That massive filesystem thread

How do filesystems other than ext3/4 do it?

Well, the Unix v6 filesystem implemented
in-order writes, as did 4.x BSD and the
other pre-journaled filesystems. POSIX allows
reordering to make coalesence easy, as
a lot of research was being done at that
time to get better performance.

A colleague at ICL (hi, Ian!) did his
masters at UofT on that, and found you
could get a performance improvement
and still preserve correctness by using
what I'd characterize as tsort(1), which
worked better than BSD/Solaris soft updates.

--dave


(Log in to post comments)


Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds