Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 25 Oct 2007 22:25:08 -0400
From:      "Josh Carroll" <josh.carroll@gmail.com>
To:        "Jeff Roberson" <jroberson@chesapeake.net>
Cc:        freebsd-performance@freebsd.org
Subject:   Re: ULE vs. 4BSD in RELENG_7
Message-ID:  <8cb6106e0710251925s2db0117cvcb67321b08d7b2a1@mail.gmail.com>
In-Reply-To: <20071024133240.X598@10.0.0.1>
References:  <8cb6106e0710230902x4edf2c8eu2d912d5de1f5d4a2@mail.gmail.com> <20071024111105.M598@10.0.0.1> <8cb6106e0710241229i12852d8cq436f4c955ac62c56@mail.gmail.com> <20071024133240.X598@10.0.0.1>

next in thread | previous in thread | raw e-mail | index | archive | help
> I'm confident that we can improve things.  It will probably not make the
> cut for 7.0 since it will be too disruptive.  I'm sure it can be
> backported before 7.1 when ULE is likely to become the default.

That sounds great! I figured it was something that would have to wait
until 7.0 released. I completely understand that.

> I hope that we can continue to work together to verify any fixes I may
> come up with.

Absolutely! Just let me know how I can help. If you need a guinea
pig...er...tester :) I'll be glad to help!

Another thing I noticed between ULE and 4BSD is my core temperatures
seem erratic on ULE. I use RRDtool with the new coretemp(4) feature
and noticed the temperatures are spiking a lot with ULE, and generally
slightly higher than when running a 4BSD kernel. I don't know if
that's significant or not. Just something I noticed when I modified my
RRD scripts to use coretemp.

For a side-by-side comparison, see this page:

http://pflog.net/~floyd/fbsd_sched.html

Thanks again for all your help! Please let me know if/when I can do
anything else to help out.

Regards,
Josh



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?8cb6106e0710251925s2db0117cvcb67321b08d7b2a1>