feature flag lazy runeDocSection decoding#312
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Currently this takes up 30% of production CPU. We are unsure if its worth the tradeoff so we will experiment with enabling vs disabling and measure the impact. We default to the current behaviour. To disable you set the environment variable ZOEKT_DISABLE_LAZY_DOC_SECTIONS to a non empty value. Test Plan: locally run zoekt-webserver with and without the feature flag. With the feature flag we should have higher memory usage. Ensure in both cases symbol search works.
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stefanhengl
approved these changes
Apr 5, 2022
| Shards: 1, | ||
| Documents: 4, | ||
| IndexBytes: 308, | ||
| IndexBytes: 300, |
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We could instead udpate memoryUse like this
- sz += 8 * len(d.runeDocSections)
+ sz += 8 * len(d.runeDocSectionsRaw)
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if its the raw section then it is mmap and isn't part of our stable memory usage.
camdencheek
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Dec 8, 2022
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Currently this takes up 30% of production CPU. We are unsure if its worth the tradeoff so we will experiment with enabling vs disabling and measure the impact.
We default to the current behaviour. To disable you set the environment variable ZOEKT_DISABLE_LAZY_DOC_SECTIONS to a non empty value.
Test Plan: locally run zoekt-webserver with and without the feature flag. With the feature flag we should have higher memory usage. Ensure in both cases symbol search works.