2020-05-06 13:21:18 +03:00
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const LPOptimizer = require('./lp-optimizer.js');
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const osd_tree = {
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100: {
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7: 3.63869,
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},
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300: {
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10: 3.46089,
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11: 3.46089,
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12: 3.46089,
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},
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400: {
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1: 3.49309,
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2: 3.49309,
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3: 3.49309,
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},
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500: {
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4: 3.58498,
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// 8: 3.58589,
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9: 3.63869,
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},
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600: {
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5: 3.63869,
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6: 3.63869,
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},
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2020-05-07 13:45:03 +03:00
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/* 100: {
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1: 2.72800,
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},
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200: {
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2: 2.72900,
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},
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300: {
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3: 1.87000,
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},
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400: {
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4: 1.87000,
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},
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500: {
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5: 3.63869,
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},*/
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2020-05-06 13:21:18 +03:00
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};
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async function run()
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{
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2020-05-07 13:45:03 +03:00
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// Test: add 1 OSD of almost the same size. Ideal data movement could be 1/12 = 8.33%. Actual is ~13%
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2020-05-06 13:21:18 +03:00
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// Space efficiency is ~99.5% in both cases.
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let prev = await LPOptimizer.optimize_initial(osd_tree, 256);
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2020-05-07 13:45:03 +03:00
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LPOptimizer.print_change_stats(prev, false);
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console.log('adding osd.8');
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2020-05-06 13:21:18 +03:00
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osd_tree[500][8] = 3.58589;
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let next = await LPOptimizer.optimize_change(prev.int_pgs, osd_tree);
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2020-05-07 13:45:03 +03:00
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LPOptimizer.print_change_stats(next, false);
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console.log('removing osd.8');
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delete osd_tree[500][8];
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next = await LPOptimizer.optimize_change(next.int_pgs, osd_tree);
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LPOptimizer.print_change_stats(next, false);
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2020-05-06 13:21:18 +03:00
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}
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run().catch(console.error);
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