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Extract PG combinator into a separate module

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This commit is contained in:
Vitaliy Filippov
2024-04-07 00:36:20 +03:00
parent 9fe779a691
commit 6a924d6066
8 changed files with 357 additions and 306 deletions
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mon/test-optimize-simple.js
+6 -5
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@@ -1,6 +1,7 @@
// Copyright (c) Vitaliy Filippov, 2019+
// License: VNPL-1.1 (see README.md for details)
const { compat } = require('./simple_pgs.js');
const LPOptimizer = require('./lp-optimizer.js');
async function run()
@@ -14,26 +15,26 @@ async function run()
let res;
console.log('16 PGs, size=3');
res = await LPOptimizer.optimize_initial({ osd_tree, pg_size: 3, pg_count: 16, ordered: false });
res = await LPOptimizer.optimize_initial(compat({ osd_tree, pg_size: 3, pg_count: 16, ordered: false }));
LPOptimizer.print_change_stats(res, false);
assert(res.space == 3, 'Initial distribution');
console.log('\nChange size to 2');
res = await LPOptimizer.optimize_change({ prev_pgs: res.int_pgs, osd_tree, pg_size: 2, ordered: false });
res = await LPOptimizer.optimize_change(compat({ prev_pgs: res.int_pgs, osd_tree, pg_size: 2, ordered: false }));
LPOptimizer.print_change_stats(res, false);
assert(res.space >= 3*14/16 && res.osd_differs == 0, 'Redistribution');
console.log('\nRemove OSD 3');
const no3_tree = { ...osd_tree };
delete no3_tree['300'];
res = await LPOptimizer.optimize_change({ prev_pgs: res.int_pgs, osd_tree: no3_tree, pg_size: 2, ordered: false });
res = await LPOptimizer.optimize_change(compat({ prev_pgs: res.int_pgs, osd_tree: no3_tree, pg_size: 2, ordered: false }));
LPOptimizer.print_change_stats(res, false);
assert(res.space == 2, 'Redistribution after OSD removal');
console.log('\n16 PGs, size=3, ordered');
res = await LPOptimizer.optimize_initial({ osd_tree, pg_size: 3, pg_count: 16, ordered: true });
res = await LPOptimizer.optimize_initial(compat({ osd_tree, pg_size: 3, pg_count: 16, ordered: true }));
LPOptimizer.print_change_stats(res, false);
assert(res.space == 3, 'Initial distribution');
console.log('\nChange size to 2, ordered');
res = await LPOptimizer.optimize_change({ prev_pgs: res.int_pgs, osd_tree, pg_size: 2, ordered: true });
res = await LPOptimizer.optimize_change(compat({ prev_pgs: res.int_pgs, osd_tree, pg_size: 2, ordered: true }));
LPOptimizer.print_change_stats(res, false);
assert(res.space >= 3*14/16 && res.osd_differs < 8, 'Redistribution');
}