File d3c627f1-volumeupload-Use-1MiB-read-size.patch of Package virt-manager.21715

Subject: volumeupload: Use 1MiB read size
From: Cole Robinson crobinso@redhat.com Wed Feb 3 14:02:32 2021 -0500
Date: Wed Feb 3 14:15:57 2021 -0500:
Git: d3c627f189dc107f22d0b614537fd0a8937c65a9

Rather than 1K. This drastically speeds up the volumeupload case
for a local URI for the cost of some higher runtime memory but
I think that's worth it

Fixes: #221

Signed-off-by: Cole Robinson <crobinso@redhat.com>

diff --git a/virtinst/install/volumeupload.py b/virtinst/install/volumeupload.py
index 02634f95..431e848c 100644
--- a/virtinst/install/volumeupload.py
+++ b/virtinst/install/volumeupload.py
@@ -108,8 +108,7 @@ def _upload_file(conn, meter, destpool, src):
         meter.start(size=size,
                     text=_("Transferring %s") % os.path.basename(src))
         while True:
-            # blocksize = (1024 ** 2)
-            blocksize = 1024
+            blocksize = 1024 * 1024  # 1 MiB
             data = fileobj.read(blocksize)
             if not data:
                 break