How do you know its still running?
Did my own test (default embedding model, openai), and measured the time.
Took 53 seconds to create the index, 0.006 seconds to persist
import time
from llama_index.core import Document, VectorStoreIndex
from llama_index.core.schema import TextNode
text = Document.example().text
nodes = [TextNode(text=text)] * 5000
start = time.time()
index = VectorStoreIndex(nodes=nodes)
end = time.time()
print(f"Index creation took {str(end-start)} seconds")
start = time.time()
index.storage_context.persist()
end = time.time()
print(f"Persist took {str(end-start)} seconds")
