wow these look nice, great job! <div class="gmail_quote">On Fri, Jan 29, 2010 at 6:45 PM, Alessio Igor Bogani <<a href="mailto:abogani@ubuntu.com">abogani@ubuntu.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> Hi All, 2010/1/20 Tim Gardner <<a href="mailto:tim.gardner@canonical.com">tim.gardner@canonical.com</a>>: > I'm considering an additional Lucid x86_64 flavour, one tuned for low > latency, power consumptive platforms. I've received a fair bit of I think that UbuntuStudio would really appreciate that new flavour, please do! I built a test "-lowlatency" kernelinto my PPA: <a href="http://kernel.ubuntu.com/~abogani/" target="_blank">http://kernel.ubuntu.com/~abogani/</a> Anyone interested into that new kernel flavour is invited to test it and report result to list! I have done some "inaccurate" tests measured with cyclictest (rt-tests package) and with a common workload (generated with some programs: Totem, OpenOffice.org, Firefox, dd, ping, top, make -j2) for a couple of minutes. Not very reliable tests after all but they could help to understand the right way. Please take a look of the latests test which have a very good results! config.generic T: 0 ( 2146) P:99 I:1000 C: 58975 Min: 6 Act: 211 Avg: 150 Max: 357 T: 1 ( 2147) P:98 I:1500 C: 39317 Min: 6 Act: 206 Avg: 155 Max: 338 T: 2 ( 2148) P:97 I:2000 C: 29488 Min: 6 Act: 200 Avg: 144 Max: 358 T: 3 ( 2149) P:96 I:2500 C: 23591 Min: 6 Act: 394 Avg: 143 Max: 394 T: 4 ( 2150) P:95 I:3000 C: 19659 Min: 7 Act: 204 Avg: 140 Max: 318 config.generic.1000hz T: 0 ( 2620) P:99 I:1000 C: 59012 Min: 5 Act: 37 Avg: 26 Max: 173 T: 1 ( 2621) P:98 I:1500 C: 39342 Min: 4 Act: 186 Avg: 22 Max: 186 T: 2 ( 2622) P:97 I:2000 C: 29507 Min: 4 Act: 130 Avg: 22 Max: 148 T: 3 ( 2623) P:96 I:2500 C: 23605 Min: 4 Act: 6 Avg: 22 Max: 190 T: 4 ( 2624) P:95 I:3000 C: 19671 Min: 5 Act: 7 Avg: 20 Max: 156 config.generic.1000hz.nohz_off_via_cmdline T: 0 ( 2077) P:99 I:1000 C: 58989 Min: 5 Act: 197 Avg: 133 Max: 438 T: 1 ( 2078) P:98 I:1500 C: 39327 Min: 5 Act: 199 Avg: 132 Max: 357 T: 2 ( 2079) P:97 I:2000 C: 29495 Min: 5 Act: 194 Avg: 133 Max: 502 T: 3 ( 2080) P:96 I:2500 C: 23597 Min: 6 Act: 201 Avg: 132 Max: 298 T: 4 ( 2081) P:95 I:3000 C: 19664 Min: 5 Act: 194 Avg: 132 Max: 274 config.generic.nohz_off T: 0 ( 2177) P:99 I:1000 C: 58975 Min: 5 Act: 81 Avg: 28 Max: 214 T: 1 ( 2178) P:98 I:1500 C: 39317 Min: 5 Act: 25 Avg: 24 Max: 222 T: 2 ( 2179) P:97 I:2000 C: 29488 Min: 6 Act: 20 Avg: 22 Max: 129 T: 3 ( 2180) P:96 I:2500 C: 23591 Min: 6 Act: 260 Avg: 21 Max: 260 T: 4 ( 2181) P:95 I:3000 C: 19659 Min: 5 Act: 22 Avg: 19 Max: 110 config.generic.nohz_off.1000hz T: 0 ( 2268) P:99 I:1000 C: 59016 Min: 4 Act: 7 Avg: 28 Max: 171 T: 1 ( 2269) P:98 I:1500 C: 39345 Min: 4 Act: 171 Avg: 19 Max: 171 T: 2 ( 2270) P:97 I:2000 C: 29509 Min: 4 Act: 124 Avg: 22 Max: 346 T: 3 ( 2271) P:96 I:2500 C: 23607 Min: 4 Act: 7 Avg: 20 Max: 197 T: 4 ( 2272) P:95 I:3000 C: 19673 Min: 4 Act: 10 Avg: 23 Max: 104 config.generic.nohz_off.1000hz.slab.preempt_rcu.preempt T: 0 ( 2077) P:99 I:1000 C: 58990 Min: 5 Act: 8 Avg: 28 Max: 164 T: 1 ( 2078) P:98 I:1500 C: 39327 Min: 5 Act: 8 Avg: 25 Max: 153 T: 2 ( 2079) P:97 I:2000 C: 29496 Min: 5 Act: 10 Avg: 19 Max: 120 T: 3 ( 2080) P:96 I:2500 C: 23597 Min: 5 Act: 12 Avg: 24 Max: 159 T: 4 ( 2081) P:95 I:3000 C: 19664 Min: 5 Act: 11 Avg: 22 Max: 143 Ciao, Alessio -- Ubuntu-Studio-devel mailing list <a href="mailto:Ubuntu-Studio-devel@lists.ubuntu.com">Ubuntu-Studio-devel@lists.ubuntu.com</a> Modify settings or unsubscribe at: <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-studio-devel</a> </blockquote></div>