NVIDIA / NVIDIA/CUDALibrarySamples

[BUG] nvcompBatchedZstdCompressGetTempSizeAsync returns monstrous temp buffer sizes

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@naveenaero is already working on this.

Since Apr 29, 2026.

bug nvCOMP
Dominant language
Cuda
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Description

nvcompBatchedZstdCompressGetTempSizeAsync returns giant values for temp_bytes, no matter the size of the input data. Even if only 4 bytes are being compressed, the temp buffer size returned will be around 500mb.

Surely a temp buffer of that size isn't actually required for such a small chunk of data to compress?

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