Bug 1491000

Summary:	infra: git clone is really slow. Is it it time for a `git gc` on the repo?
Product:	[Community] GlusterFS	Reporter:	Kaleb KEITHLEY <kkeithle>
Component:	project-infrastructure	Assignee:	Nigel Babu <nigelb>
Status:	CLOSED WORKSFORME	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	mainline	CC:	bugs, gluster-infra, kkeithle, mscherer
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Last Closed:	2017-09-13 12:20:48 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Kaleb KEITHLEY 2017-09-12 17:41:12 UTC

Description of problem:

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Comment 1 M. Scherer 2017-09-12 23:32:22 UTC

Ok so what do you mean by "really slow" ?
Can we get a idea of the time it take for you, so we can measure improvement ?

(as I was under the impression that gerrit was doing a git gc by itself) 
Also, to be sure, that's for the main git repo on gerrit, yes ?

Comment 2 Kaleb KEITHLEY 2017-09-13 11:58:56 UTC

git.gluster.org. Is that the same as gerrit?

fedora 26 vm running on my desktop:
%time git clone ssh://kalebskeithley.org/glusterfs.git dummy
Cloning into 'dummy'...
Enter passphrase for key '/home/kkeithle/.ssh/fedora_id_rsa': 
remote: Counting objects: 7908, done
remote: Finding sources: 100% (1610/1610)
remote: Total 150039 (delta 641), reused 149842 (delta 641)
Receiving objects: 100% (150039/150039), 69.55 MiB | 114.00 KiB/s, done.
Resolving deltas: 100% (95302/95302), done.
23.877u 2.510s 11:20.47 3.8%	0+0k 104+208696io 0pf+0w

majority of the time is spent in Receiving objects.

But on a fedora 25 vm also running on the same desktop Receiving objects is nearly instantaneous.

Comment 3 Nigel Babu 2017-09-13 12:20:48 UTC

There's an automatic GC run every Sunday. A git clone takes about 30 seconds on my machine limited only by network speed.

git.gluster.org is a CNAME to review.gluster.org. On ssh, it should do the same thing. On HTTP(S), it points to cgit.