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more work on optimizing. Improve the test case.

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Kevin Jahns
2025-04-24 19:49:08 +02:00
parent f5e2a4d4f4
commit d399756eec
1 changed files with 19 additions and 5 deletions
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24
tests/y-text.tests.js
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@@ -2606,30 +2606,44 @@ const checkResult = result => {
}
/**
* Generally, the content reader with attributed content works better if there is more deleted
* content. Increasing the number of deletions improves performance of getContent (even to the point
* that is beats toString(), but that might be because of internal js optimization steps).
*
* @param {t.TestCase} tc
*/
export const testAttributionManagerDefaultPerformance = tc => {
const N = 100000
const MaxDeletionLength = 5 // 25% chance of deletion
const MaxInsertionLength = 5
const ydoc = new Y.Doc()
const ytext = ydoc.getText()
for (let i = 0; i < N; i++) {
if (prng.bool(tc.prng) && ytext.length > 0) {
if (prng.bool(tc.prng) && prng.bool(tc.prng) && ytext.length > 0) {
const index = prng.int31(tc.prng, 0, ytext.length - 1)
const len = prng.int31(tc.prng, 0, math.min(ytext.length - index, 5))
const len = prng.int31(tc.prng, 0, math.min(ytext.length - index, MaxDeletionLength))
ytext.delete(index, len)
} else {
const index = prng.int31(tc.prng, 0, ytext.length)
const content = prng.utf16String(tc.prng, 30)
const content = prng.utf16String(tc.prng, MaxInsertionLength)
ytext.insert(index, content)
}
}
t.info(`number of changes: ${N/1000}k`)
t.info(`length of text: ${ytext.length}`)
const M = 100
t.measureTime('original toDelta perf', () => {
t.measureTime(`original toString perf <executed ${M} times>`, () => {
for (let i = 0; i < M; i++) {
ytext.toDelta()
}
})
t.measureTime('getContent(attributionManager) performance)', () => {
t.measureTime(`original toDelta perf <executed ${M} times>`, () => {
for (let i = 0; i < M; i++) {
ytext.toDelta()
}
})
t.measureTime(`getContent(attributionManager) performance <executed ${M} times>`, () => {
for (let i = 0; i < M; i++) {
ytext.getContent()
}