Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches)
Kris Kennaway
kris at obsecurity.org
Tue May 24 09:19:47 PDT 2005
On Tue, May 24, 2005 at 04:37:26PM +0200, Krzysztof Kowalik wrote:
> Kris Kennaway [kris at obsecurity.org] wrote:
> > [...] One obvious guess is that it's due to VFS being under Giant,
> > which causes lots of contention with other subsystems that also
> > require Giant, and therefore introduces latency. If so, you'd see a
> > substantial performance improvement on 6.0 with debug.mpsafevfs=1.
>
> I didn't see any visible difference, in the given scenario of
> uncompressing firefox's sources, when tried mpsafevfs's patches when
> they got announced on current at .
There have been a *lot* of changes in this area since the initial
patches (i.e. continued removal of Giant), so you'd really need to
re-test on a recent version of 6.0 to be definitive.
Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-stable/attachments/20050524/ea54ffda/attachment.bin
More information about the freebsd-stable
mailing list