Re: ufs multilabel performance (fwd)
Edward Tomasz Napierała <[email protected]>
| Newsgroups | gmane.os.freebsd.current,gmane.os.freebsd.security.general,gmane.os.freebsd.performance |
|---|---|
| Message-ID | <[email protected]> |
Wiadomość napisana przez Adrian Chadd w dniu 17 kwi 2012, o godz. 21:17: > On 16 April 2012 23:31, Richard Kojedzinszky <[email protected]> wrote: >> >> So now reactions here, creating files with multilabel is still slow. >> >> I would like to use multilabel access control on my /tmp, for example, my >> web server places it's session files there in a subdirectory. Of course, I >> would like to assign a label for that subdir, but with this slow file >> creation, that is not the way to go. I may then use a different filesystem >> for that. In this case, can I assign a root mac label for a mount point? > > Hi, > > This is a perfect job for hwpmc / dtrace. > > Would you be able to load up either of those and get some CPU usage > statistics whilst you're running your benchmark? > > It's either that, or it's (massive) locking contention. Or disk I/O. MAC labels, just like ACLs, are stored in extended attributes, and I remember something about writing those being synchronous. -- If you cut off my head, what would I say? Me and my head, or me and my body? _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"