[powerdev-hosting] Low download speeds on OSU CI VMs

[Barry Mosakowski]

Hi Smita,

....adding Allen Bailey.

Please keep me honest here.  It sounds like it isn't Power itself, but the
network (internet or intranet) causing the slowdown and failed Power
verifications?  Allen suggesting creating a mirror to pull the images from?
This isn't very complicated and may resolve the issue.

What do you think?

Thanks,
Barry


__________________________________________________________________________________________________________________

Barry Mosakowski
Software Engineer
4205 South Miami Blvd.
RTP, NC  27709
(919) 254-4786




From:	Smita Bodepudi/Austin/IBM
To:	powerdev-hosting at osuosl.org
Cc:	Ramesh Thoomu/San Francisco/Contr/IBM at IBMUS, Barry
            Mosakowski/Raleigh/IBM at IBMUS, Srirama Sharma/India/IBM at IBMIN
Date:	05/10/2017 02:07 PM
Subject:	Low download speeds on OSU CI VMs


Hi All,

Our Blockchain builds on our CI systems are taking very long time compared
to other platforms, so we are
investigating where the bottleneck is. One observation we made is the
problem with download speed on these Power nodes.
|------------------------------------+------------------------------------|
|IP                                  |Download speed                      |
|------------------------------------+------------------------------------|
|Power: 140.211.168.107              |3.83 Mbit/s                         |
|------------------------------------+------------------------------------|
|Power: 140.211.168.178              |5.16 Mbit/s                         |
|------------------------------------+------------------------------------|
|Power: 140.211.168.157              |3.24 Mbit/s                         |
|------------------------------------+------------------------------------|
|Power: 140.211.168.108              |3.81 Mbit/s                         |
|------------------------------------+------------------------------------|
|                                    |                                    |
|------------------------------------+------------------------------------|
|                                    |                                    |
|------------------------------------+------------------------------------|
|Our lab Power systems:              | 315.08 Mbit/s                      |
|------------------------------------+------------------------------------|
|                                    |263.75 Mbit/s                       |
|------------------------------------+------------------------------------|
|                                    |                                    |
|------------------------------------+------------------------------------|
|x86                                 |226.54 Mbit/s                       |
|------------------------------------+------------------------------------|
|s390x(Z)                            |326.61 Mbit/s                       |
|------------------------------------+------------------------------------|



Our builds are taking the longest of all the three platforms.
Z build: 45-50min
x86 build: 80-100min
Power: 120-130min

We are trying to see if slow network download speed could be one of the
issues. Please check and let us know.


Regards,
Smita.

*********************************************************
Smita Bodepudi
Power Open Source Solutions Development
11501 Burnet Road.
Austin, TX-78759
(512)286-5385
*********************************************************


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