Date: Mon, 5 Nov 2007 01:41:53 -0800 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: <8cb6106e0711050141g674a7733h53f7e6a20e75ad07@mail.gmail.com> In-Reply-To: <20071104151722.M544@10.0.0.1> References: <8cb6106e0710230902x4edf2c8eu2d912d5de1f5d4a2@mail.gmail.com> <8cb6106e0711021839i4714bdfbh74d412b3e14e808@mail.gmail.com> <8cb6106e0711031227t1e829969s2e6062e1db5167af@mail.gmail.com> <20071103121921.M544@10.0.0.1> <8cb6106e0711031416l4183e2beueb87fade0d56f504@mail.gmail.com> <20071103133711.Q544@10.0.0.1> <8cb6106e0711032221i2ecf1d59ge82f368d4162a827@mail.gmail.com> <20071104122546.S544@10.0.0.1> <8cb6106e0711041243s37ef92e3i9c5c79827f547dbb@mail.gmail.com> <20071104151722.M544@10.0.0.1>
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> Turns out the last patch I posted had a small compile error because I > edited it by hand to remove one section. Here's an updated patch that > fixes that and changes the min/max slice values to something more > reasonable. Slice min should be around 4 with a max of 12. > > Also looks like 4BSD's slice handling got more precise recently as well. > jhb changed it from using a callout to an actual counter based on runtime. ffmpeg runtime with the new patch: 1:39.09 buildworld: 13:55.689 Looks like things got a little worse with this patch. One thing of note, the slice_min and slice values are: kern.sched.slice_min: 5 kern.sched.slice: 13 Did I do something wrong to cause the slice min to be 5 instead of 4 and the max to be 13 instead of 12? Thanks, Josh
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