operationCacheBudgetBytes

The most bytes of parsed content that this document keeps, so that a page drawn again, at another zoom or after a scroll back, does not parse its content again, and a form drawn many times parses once. A dense page of 100,000 operators takes about 12 MB. The content used least recently leaves first, and content larger than the whole budget is not kept. The default is DEFAULT_OPERATION_CACHE_BUDGET_BYTES; 0 keeps none. Lower it for a small heap, and call dropOperationCache when the app runs low on memory.