Last Mile and Private Last Mile 2016 May release notes

Last Mile enables you to validate the speed and reliability of your website from your customers' perspectives by measuring and monitoring website performance from actual desktop connections. Using Last Mile, you can assess how website changes, geographic location, and bandwidth constraints affect the way your customers experience your website.

Private Last Mile supplements standard performance testing with dedicated agents located at key internal or external locations, such as across intranets, extranets, or VPNs. By installing the Private Last Mile software on servers, end-user desktop machines, or infrastructure components, you can diagnose and pinpoint bottlenecks, evaluate the impact of infrastructure changes (such as load balancers or SSL accelerators), and gain unparalleled insight into the true performance of your web applications from key end user perspectives.

New features and enhancements

Last Mile and Private Last Mile support for Chrome 46 and Firefox 38

The Last Mile and Private Last Mile networks are updated for upgraded Browser Agents:

  • The Chrome Agent upgrade supports Chrome 46.
  • The Firefox Agent upgrade supports Firefox 38.

Maintenance release of IE Agent

A maintenance release for the IE Agent, which supports Internet Explorer 11, will be deployed in the Private Last Mile network.

The Private Peer supports Compatibility Mode for the IE Agent. In the Dynatrace Recorder, you can select the Internet Explorer browser version for IE Compatibility Mode in a script's Playback settings.

Admin account no longer needed for IE Agent with Private Last Mile

You no longer need a local administrator account to use the IE Agent with Private Last Mile.The IE Agent user can be either a local user or a Windows domain user.

Windows administrator permissions are still needed to run the Private Peer service

Windows versions supported for Last Mile and Private Last Mile

Last Mile and Private Last Mile are now supported on Windows 10 and Windows Server 2012.

Minimum system requirements – public peer

Supported operating systems

  • Windows XP
  • Windows Server 2003
  • Windows Vista
  • Windows Server 2008
  • Windows 7
  • Windows 8
  • Windows Server 2012
  • Windows 10

Memory

  • Physical memory for installation: Minimum 256 MB

  • Available memory

    • Run the peer: minimum 16 MB
    • Run the tests: minimum 50 MB

Agents

Firefox Agent

  • Installation – Firefox Browser Agent is supported.

    • Minimum total memory: 256 MB
    • Minimum available memory: 50 MB
    • Minimum free disk space: 50 MB (peer installation partition)
    • Maximum CPU utilization: 80%
  • Runtime – Peer is capable of executing a Firefox job.

    • Minimum available memory: 100 MB
    • Maximum CPU utilization: 80%

Chrome Agent

  • Installation – Chrome Browser Agent is supported.

    • Minimum total memory: 256 MB
    • Minimum available memory: 100 MB
    • Minimum free disk space: 100 MB (peer installation partition)
    • Maximum CPU utilization: 80%
  • Runtime – Peer is capable of executing a Chrome job.

    • Minimum available memory: 200 MB
    • Maximum CPU utilization: 80%

Minimum system requirements – Private Last Mile

Supported browsers

Private Peers leverage Firefox 38 and Chrome 46, and support Internet Explorer 8, 10, and 11.

For more information, see Private Last Mile System Requirements.

Supported operating systems

  • Windows XP

  • Windows 2003

  • Windows Vista

  • Windows 2008

  • Windows 7

  • Windows 8

  • Windows Server 2012

  • Windows 10

  • Private Last Mile no longer supports execution of IE tests on the following (end-of-life) operating systems: Windows 2000, Windows XP, Windows Vista, Windows Server 2003 R2.

  • If you experience issues running IE Agent tests on Windows 10, make sure Internet Explorer 11 is enabled:

    1. Press the Windows key to display the Start menu.
    2. In the Search Programs and Files field, type Turn Windows features on or off, then press Enter.
      If you are prompted for User Account Control, enter your admin password to proceed.
    3. Make sure Internet Explorer 11 is selected (enabled), then click OK .

CPU

  • 1-GHz Pentium 4 or better

Agents

Firefox Agent (gozilla.com)

  • Available memory: 512 MB RAM
  • Hard disk space: minimum 100 MB

Chrome Agent

  • Installation – Chrome Browser Agent is supported.

    • Minimum total memory: 256 MB
    • Minimum available memory: 100 MB
    • Minimum free disk space: 100 MB (peer installation partition)
    • Maximum CPU utilization: 80%
  • Runtime – Peer is capable of executing a Chrome job.

    • Minimum available memory: 200 MB
    • Maximum CPU utilization: 80%

Internet Explorer Agent

  • Available memory: 2 GB RAM
  • Hard disk space: Minimum 2 GB

Technical notes

Private peer installer with VM

A Private Peer that includes a built-in virtual machine is available by request from Customer Support. The VM private peer uses VMware Player 2.5.3. Windows XP 32-bit with Internet Explorer 8 runs within the VM. The virtual machine instance requires up to an addition 2 GB of disk space and can use up to an additional 700 MB of memory when running tests.

Internet Explorer Agent requirements

A login account for the gomezpeer service is required by the IE agent. It can be any valid computer account that supports both domain user and local machine user, but we recommend that you create a local computer account that is only used for the gomezpeer service.

The Internet Explorer browser cache is shared with the user account that is configured for Private Last Mile. If that user frequently uses Internet Explorer on the machine where Private Last Mile is installed, the user's updates to the cache and the IE Agent's clearing of the cache may cause varying results in the Private Last Mile data. We recommend installing Private Last Mile on a dedicated machine.

If you experience issues running Internet Explorer Agent tests on Windows 10, make sure Internet Explorer 11 is enabled:

  1. Press the Windows key to display the Start menu.
  2. In the Search Programs and Files field, type Turn Windows features on or off, then press Enter.
    If your are prompted for User Account Control, enter your admin password to proceed.
  3. Make sure Internet Explorer 11 is selected (enabled), then click OK .

Known limitations

Internet Explorer Agent

  • Execution of IE tests on Windows Server 2008 requires 2008 R2 or a current service pack to be installed. Testing indicates that execution of IE tests on older non-upgraded or non-patched versions of Windows Server 2008 may result in "10001-Server Response Missing Status” test errors.
  • If you are enabled to run the Private Last Mile agent, you will see UTA, Firefox, IE, and Chrome agents as options when creating Last Mile tests. When you create a Last Mile test using the IE agent, you will be prevented from selecting public peer populations. The IE agent is not available for the public Last Mile.

IPv6 support

IPv6 is supported only for the private peer, not for the public Last Mile. IPv6 support on the private peer has the following limitations:

  • The standard private peer supports IPv6 tests on the Firefox, IE, and Chrome agent. The private peer with built-in virtual machine does not support IPv6 tests on the IE agent.
  • IPv6 tests cannot run behind a proxy server.

Known issues

Edit test page options

The Edit Last Mile (Single URL or Transaction): TestName page displays the Request/Response Header Capture option for tests where detailed component- or object-level data is not stored (the no page objects option was originally selected for this test). Note that if you select this option for a test where detailed component or object level data is not available, it will be ignored.