[CentOS-mirror] This mirror is slow

Paul Stewart pstewart at nexicomgroup.net
Fri Mar 28 20:09:42 UTC 2014

I know you are quite a distance away but if you wanted to try our mirror for reference please do – centos.mirror.nexicom.net

We have several folks in San Francisco area using this mirror and getting reasonable speeds (considering distance)


From: Bryan Whitehead <driver at megahappy.net<mailto:driver at megahappy.net>>
Reply-To: "Mailing list for CentOS mirrors." <centos-mirror at centos.org<mailto:centos-mirror at centos.org>>
Date: Friday, March 28, 2014 at 4:06 PM
To: "Mailing list for CentOS mirrors." <centos-mirror at centos.org<mailto:centos-mirror at centos.org>>
Subject: Re: [CentOS-mirror] This mirror is slow

This is from Digital Ocean "San Francisco 1". Subnet is<>.

My download starts off at about 20MB/sec and is quickly slowed down to about 10k/sec for about 2mins, then it slowly gets back to about 5MB/sec (just doing a liveCD iso download). I'm also opening up tickets with the Digital Ocean guys - maybe they are doing something?

Previously I had my own centos mirror in several co-lo's, but funding issues are causing us to shutdown our co-lo's and switch to hosted. Maintaining our own mirror is no longer in the budget. When I had my own mirror I never experienced any slowdown at all - even when pulling across co-lo's (mirror was not public).

My other theory is disk IO on your mirror might be slow - so unless I'm hitting hot files that are cached I get bad IO. Example: doing a "yum groupinstall Additional Development" is particularly bad if gatech mirror happens to get picked.

On Fri, Mar 28, 2014 at 12:43 PM, Neil Bright <lxmirror at gtlib.gatech.edu<mailto:lxmirror at gtlib.gatech.edu>> wrote:
(resending, as it seems I’ve run afoul of mailing list addresses…)

On Mar 27, 2014, at 11:49 AM, Neil Bright <neil.bright at oit.gatech.edu<mailto:neil.bright at oit.gatech.edu>> wrote:

> We don’t intentionally throttle any of our mirrors.  Of course, we are connected to a multitude of different regional and international networks, so there could be quite a few factors coming in to play here.
> Can you provide any more details?  Source IP address, time, etc?
> On Mar 26, 2014, at 4:27 PM, Bryan Whitehead <driver at megahappy.net<mailto:driver at megahappy.net>> wrote:
>> http://www.gtlib.gatech.edu
>> I was doing a yum upgrade on DigitalOcean, this was about 100k/sec.
>> So I decided to download an iso from my laptop (comcast business) and initially got 3.5MB/sec, but it quickly was reduced to 200k/sec.
>> I think some kind of throttling is going on.
>> -Bryan

Neil Bright (ncbright at gatech.edu<mailto:ncbright at gatech.edu>)                  (404) 385-6954<tel:%28404%29%20385-6954>
258 Fourth Street, Rich Bldg, Rm 321 / Atlanta, GA  30332-0700

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