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Make store operations constant wrt flash operations

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This commit is contained in:
Julien Cretin
2020-12-10 18:29:31 +01:00
parent c34d5c7d8a
commit edcc206e9d
5 changed files with 162 additions and 123 deletions
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14
examples/store_latency.rs
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@@ -124,15 +124,15 @@ fn main() {
compute_latency(&timer, 20, 1, 50);
// Those overwritten 1 word entries simulate counters.
compute_latency(&timer, 3, 0, 1);
compute_latency(&timer, 6, 0, 1);
compute_latency(&timer, 20, 0, 1);
writeln!(Console::new(), "\nDone.").unwrap();
// Results on nrf52840dk:
//
// | Pages | Overwrite | Length | Boot | Compaction | Insert | Remove |
// | ----- | --------- | --------- | ------- | ---------- | ------ | ------- |
// | 3 | no | 50 words | 2.0 ms | 132.5 ms | 4.8 ms | 1.2 ms |
// | 20 | no | 50 words | 7.4 ms | 135.5 ms | 10.2 ms | 3.9 ms |
// | 3 | yes | 1 word | 21.9 ms | 94.5 ms | 12.4 ms | 5.9 ms |
// | 6 | yes | 1 word | 55.2 ms | 100.8 ms | 24.8 ms | 12.1 ms |
// | Pages | Overwrite | Length | Boot | Compaction | Insert | Remove |
// | ----- | --------- | --------- | ------- | ---------- | ------ | ------ |
// | 3 | no | 50 words | 2.0 ms | 132.8 ms | 4.3 ms | 1.2 ms |
// | 20 | no | 50 words | 7.8 ms | 135.7 ms | 9.9 ms | 4.0 ms |
// | 3 | yes | 1 word | 19.6 ms | 90.8 ms | 4.7 ms | 2.3 ms |
// | 20 | yes | 1 word | 183.3 ms | 90.9 ms | 4.8 ms | 2.3 ms |
}