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Date: Mon, 9 Aug 2010 09:19:20 +1000 From: Con Kolivas <con@...ivas.org> To: linux-kernel@...r.kernel.org Subject: Re: [ANNOUNCE] 2.6.35-ck1 On Sat, 7 Aug 2010 10:39:31 am Con Kolivas wrote: > These are patches designed to improve system responsiveness and > interactivity with specific emphasis on the desktop, but suitable to any > workload. > > > Apply to 2.6.35: > http://www.kernel.org/pub/linux/kernel/people/ck/patches/2.6/2.6.35/2.6.35- >ck1/patch-2.6.35-ck1.bz2 As discussed on the BFS release announce, here are some interbench results, performed on a lower spec machine. Hyperthreading was enabled, so this was an SMP config with 2 CPUs. Use a fixed width font to make it readable. See you all next major 3 point kernel release. Comparison of 2.6.35 v 2.6.35-ck1 on a pentium 4HT with 1GB ram. Note the significantly higher number of deadlines met on ck1, and when deadlines are not met, the worst case latencies are mostly better. These are the two most important parameters to compare. Asterisk placed where values are significantly better. >= 5% or 5ms is considered significant. Using 2043662 loops per ms, running every load for 30 seconds Benchmarking kernel 2.6.35-ck1 at datestamp 201008082239 --- Benchmarking simulated cpu of Audio in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met None 0.0 +/- 0.0 0.0 100 100 Video 0.0 +/- 0.0 0.0 100 100 X 0.0 +/- 0.0 0.0 100 100 Burn 0.0 +/- 0.0 0.0 100 100 Write 0.0 +/- 0.0 0.4 * 100 100 Read 0.0 +/- 0.0 0.1 100 100 Compile 0.0 +/- 0.0 0.3 * 100 100 Memload 0.0 +/- 0.0 0.1 * 100 100 * --- Benchmarking simulated cpu of Video in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met None 0.0 +/- 0.0 0.0 * 100 100 * X 0.0 +/- 0.0 0.0 * 100 100 * Burn 0.0 +/- 0.0 * 0.0 * 100 100 * Write 0.1 +/- 1.5 22.7 * 100 * 99.3 * Read 0.0 +/- 0.0 0.1 * 100 100 * Compile 2.1 +/- 6.0 * 23.7 * 100 * 87.5 * Memload 0.2 +/- 1.7 23.7 100 * 99 * --- Benchmarking simulated cpu of X in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met None 0.5 +/- 2.9 * 39.0 * 89.3 * 86.4 * Video 17.3 +/- 31.1 80.0 * 32.3 22.8 Burn 30.3 +/- 47.1 * 104.0 * 23.1 * 13.4 * Write 5.6 +/- 13.2 54.0 * 60.1 51.5 Read 1.6 +/- 5.5 55.0 77.7 * 72.1 * Compile 43.1 +/- 62.9 * 150.0 * 18 8.63 Memload 2.7 +/- 7.4 * 35.0 * 71.6 * 63.7 * --- Benchmarking simulated cpu of Gaming in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU None 72.4 +/- 94.7 166.6 58 Video 76.1 +/- 76.5 * 82.0 * 56.8 * X 67.6 +/- 74.1 * 104.3 * 59.7 * Burn 103.3 +/- 103.9 * 107.5 * 49.2 * Write 38.4 +/- 41.3 81.8 72.3 Read 13.1 +/- 14.1 * 45.2 88.4 Compile 125.9 +/- 127.3 * 215.3 * 44.3 Memload 30.3 +/- 34.7 * 145.0 * 76.7 Using 2043662 loops per ms, running every load for 30 seconds Benchmarking kernel 2.6.35 at datestamp 201008082220 --- Benchmarking simulated cpu of Audio in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met None 0.0 +/- 0.0 0.0 100 100 Video 0.0 +/- 0.0 0.0 100 100 X 0.0 +/- 0.0 0.0 100 100 Burn 0.0 +/- 0.0 0.0 100 100 Write 0.1 +/- 0.3 5.0 100 100 Read 0.0 +/- 0.0 0.1 100 100 Compile 0.1 +/- 0.8 11.0 100 100 Memload 0.1 +/- 2.0 50.0 99.8 99.8 --- Benchmarking simulated cpu of Video in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met None 0.2 +/- 1.9 16.7 100 98.6 X 1.8 +/- 5.4 16.7 100 89.5 Burn 11.5 +/- 13.9 16.7 100 31.1 Write 1.4 +/- 4.9 40.3 99.9 92.1 Read 0.2 +/- 1.8 16.7 100 98.9 Compile 9.2 +/- 14.0 46.3 89.9 49.2 Memload 1.2 +/- 4.4 22.7 100 93.3 --- Benchmarking simulated cpu of X in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met None 5.9 +/- 15.3 104.0 57.8 48.8 Video 13.4 +/- 26.1 100.0 36.4 27.7 * Burn 40.4 +/- 60.6 150.0 18.8 9.84 Write 7.0 +/- 16.0 84.0 58.5 47.4 Read 2.5 +/- 6.5 30.0 * 74.8 66.1 Compile 55.0 +/- 76.4 288.0 18.1 7.28 Memload 8.7 +/- 26.7 290.0 51.6 43.6 --- Benchmarking simulated cpu of Gaming in the presence of simulated --- Load Latency +/- SD (ms) Max Latency % Desired CPU None 32.7 +/- 52.2 * 167.0 75.4 * Video 114.6 +/- 116.5 161.0 46.6 X 88.3 +/- 96.6 166.9 53.1 Burn 139.1 +/- 141.5 167.0 41.8 Write 33.1 +/- 36.2 * 83.2 75.1 Read 20.1 +/- 20.6 51.3 83.3 Compile 138.8 +/- 142.9 312.8 41.9 Memload 36.7 +/- 46.5 197.4 73.1 -- -ck -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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