René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Low default chunk size slows GCS downloads","articleBody":"Steps to reproduce:\n1. Create multi-gb file gs://your_bucket/obj\n2. Test gsutil speed with \"gsutil cp gs://your_bucket/obj /local/copy\"\n3. download via gcloud.storage.Blob.download_to_filename (see sample script below)\n\nExpected result: similar timing\n\nActual result on my machine: gsutil downloads 4.6GB in 1min14sec, gcloud.storage takes 20min.\n\nIf I add `blob.chunk_size=1\u003c\u003c30` prior to download_to_filename, gcloud.storage takes the same time as gsutil to the second.\n\nSample script:\n\n```\n#!/usr/bin/env python\nimport httplib2\nhttplib2.debuglevel=4\nimport gcloud.storage\n\nbucket_id = 'BUCKET'\nblob_id = 'OBJECT'\nurl = 'gs://%s/%s' % (bucket_id, blob_id)\nproject = 'dnewgas-test-1'\nclient = gcloud.storage.client.Client(project)\nbucket = client.get_bucket(bucket_id)\nblob = bucket.get_blob(blob_id)\n//blob.chunk_size=1\u003c\u003c30\nblob.download_to_filename('/tmp/down')\n```\n","author":{"url":"https://github.com/davidn","@type":"Person","name":"davidn"},"datePublished":"2016-08-30T17:53:02.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":8},"url":"https://github.com/2222/google-cloud-python/issues/2222"}