Issue 2560: second repo cloning slower than first one with darcs 2.12.5 - Darcs bug tracker

Title	second repo cloning slower than first one with darcs 2.12.5
Priority		Status	needs-reproduction
Milestone		Resolved in
Superseder		Nosy List	gh
Assigned To		Topics

Created on 2017-11-08.14:33:21 by gh, last changed 2020-06-20.11:07:59 by bfrk.

Files
File name	Uploaded	Type	Edit	Remove
patches-cloning	gh, 2017-11-08.14:33:16	application/octet-stream

Messages
msg19800 (view)	Author: gh	Date: 2017-11-08.14:33:15
I'm on a freshly installed Ubuntu 17.10, using Darcs 2.12.5 fron the ubuntu packages, and I did a first clone of http:://darcs.net which went as expected. Now the second clone (or the reviewed repo) is lasting much more time at the patches copying step, which really makes the cache system seem pointless. Attached is the end of the output of strace. Attachments patches-cloning
msg19802 (view)	Author: bfrk	Date: 2017-11-08.22:48:34
Have you noticed all the unlink calls, e.g. unlink("/home/guillaume/.cache/darcs/patches/88/0000002677-88f14b650f6055df8e4a7448bb11bb8c0c3bcccfeacb3f0eabc1d6227027a5c4-new_21181d1f70ab8604ab3d3e7de0dc0a4f") = -1 ENOENT (No such file or directory) They are the vast majority of the file accesses and they all fail. I would guess that this is what is slowing things down, but I have no idea why darcs wants to delete these files.

History
Date	User	Action	Args
2017-11-08 14:33:21	gh	create
2017-11-08 22:48:36	bfrk	set	messages: + msg19802
2020-06-20 11:07:59	bfrk	set	status: unknown -> needs-reproduction