Memory

Updated Nov 1, 2026

Each thread keeps the working memory a document's trees were built in, emptied, for the next document, up to 256 MB; a document that needs more has its memory freed once it finishes. Documents of several megabytes need more than that, so raise the cap for them, or lower it when idle memory matters more than speed. It applies to every processor in the process.

import textlane

textlane.set_retained_memory(512 * 1024**2)
textlane.retained_memory()
# 536870912

textlane.set_retained_memory(0) keeps nothing between documents.